US20070152123A1 - Installation method for fixing an apparatus - Google Patents
Installation method for fixing an apparatus Download PDFInfo
- Publication number
- US20070152123A1 US20070152123A1 US11/678,654 US67865407A US2007152123A1 US 20070152123 A1 US20070152123 A1 US 20070152123A1 US 67865407 A US67865407 A US 67865407A US 2007152123 A1 US2007152123 A1 US 2007152123A1
- Authority
- US
- United States
- Prior art keywords
- bolt
- rail
- block
- nut
- nut plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64D—EQUIPMENT FOR FITTING IN OR TO AIRCRAFT; FLIGHT SUITS; PARACHUTES; ARRANGEMENTS OR MOUNTING OF POWER PLANTS OR PROPULSION TRANSMISSIONS IN AIRCRAFT
- B64D11/00—Passenger or crew accommodation; Flight-deck installations not otherwise provided for
- B64D11/0015—Arrangements for entertainment or communications, e.g. radio, television
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R11/00—Arrangements for holding or mounting articles, not otherwise provided for
- B60R11/02—Arrangements for holding or mounting articles, not otherwise provided for for radio sets, television sets, telephones, or the like; Arrangement of controls thereof
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R11/00—Arrangements for holding or mounting articles, not otherwise provided for
- B60R11/02—Arrangements for holding or mounting articles, not otherwise provided for for radio sets, television sets, telephones, or the like; Arrangement of controls thereof
- B60R11/0229—Arrangements for holding or mounting articles, not otherwise provided for for radio sets, television sets, telephones, or the like; Arrangement of controls thereof for displays, e.g. cathodic tubes
- B60R11/0235—Arrangements for holding or mounting articles, not otherwise provided for for radio sets, television sets, telephones, or the like; Arrangement of controls thereof for displays, e.g. cathodic tubes of flat type, e.g. LCD
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B47/00—Operating or controlling locks or other fastening devices by electric or magnetic means
- E05B47/06—Controlling mechanically-operated bolts by electro-magnetically-operated detents
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B47/00—Operating or controlling locks or other fastening devices by electric or magnetic means
- E05B47/06—Controlling mechanically-operated bolts by electro-magnetically-operated detents
- E05B47/0603—Controlling mechanically-operated bolts by electro-magnetically-operated detents the detent moving rectilinearly
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05C—BOLTS OR FASTENING DEVICES FOR WINGS, SPECIALLY FOR DOORS OR WINDOWS
- E05C21/00—Arrangements or combinations of wing fastening, securing, or holding devices, not covered by a single preceding main group; Locking kits
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R11/00—Arrangements for holding or mounting articles, not otherwise provided for
- B60R2011/0001—Arrangements for holding or mounting articles, not otherwise provided for characterised by position
- B60R2011/0003—Arrangements for holding or mounting articles, not otherwise provided for characterised by position inside the vehicle
- B60R2011/0028—Ceiling, e.g. roof rails
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R11/00—Arrangements for holding or mounting articles, not otherwise provided for
- B60R2011/0042—Arrangements for holding or mounting articles, not otherwise provided for characterised by mounting means
- B60R2011/008—Adjustable or movable supports
- B60R2011/0082—Adjustable or movable supports collapsible, e.g. for storing after use
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R11/00—Arrangements for holding or mounting articles, not otherwise provided for
- B60R2011/0042—Arrangements for holding or mounting articles, not otherwise provided for characterised by mounting means
- B60R2011/008—Adjustable or movable supports
- B60R2011/0085—Adjustable or movable supports with adjustment by rotation in their operational position
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T50/00—Aeronautics or air transport
- Y02T50/40—Weight reduction
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S248/00—Supports
- Y10S248/917—Video display screen support
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S248/00—Supports
- Y10S248/917—Video display screen support
- Y10S248/919—Adjustably orientable video screen support
- Y10S248/922—Angular
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S248/00—Supports
- Y10S248/917—Video display screen support
- Y10S248/919—Adjustably orientable video screen support
- Y10S248/922—Angular
- Y10S248/923—Tilting
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T403/00—Joints and connections
- Y10T403/59—Manually releaseable latch type
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T70/00—Locks
- Y10T70/50—Special application
- Y10T70/5093—For closures
- Y10T70/5155—Door
- Y10T70/5199—Swinging door
- Y10T70/5372—Locking latch bolts, biased
- Y10T70/5385—Spring projected
- Y10T70/5389—Manually operable
- Y10T70/55—Dogged bolt or connections
- Y10T70/5518—Connections only
Definitions
- the present invention relates to a fixture device for fixing a display apparatus on the ceiling portion of a vehicle, such as an aircraft, and to a fixture apparatus for fixing a display section to the display apparatus.
- a display apparatus for displaying video images are installed in the cabin of a vehicle, such as a passenger aircraft; for this purpose.
- a display apparatus for the entertainment system of an aircraft is herein taken as an example to describe.
- FIGS. 14 ( a ) and ( b ) are perspective views showing a display apparatus body 4 having a display section 6 , such as an LCD display apparatus, installed in the ceiling portion and the lower portion of a baggage rack 5 in the cabin of a passenger aircraft.
- FIG. 14 ( a ) shows the retracted state (the state of nonuse) of the display section 6 of the display apparatus body 4
- ( b ) of the same figure shows the state of use.
- the display apparatus body 4 is arranged at the lower portion of the baggage rack 5 of the passenger aircraft, and comprises the display section 6 and an open/close operation portion 7 .
- the display section 6 has a display member 8 , such as an LCD flat panel.
- the display member 8 is held by the open/close operation portion 7 so as to keep the most suitable angle to a passenger.
- the opening in the display apparatus body 4 is covered with a cover 9 to prevent dirt and dust from entering during the use of the display section 6 .
- the display apparatus body 4 is fixed to the inside of a ceiling portion 3 at the lower portion of the baggage rack 5 by a fixture device that will be described below.
- FIG. 15 is a sectional view showing the baggage rack 5 and the ceiling portion 3 below the lower portion thereof perpendicular to the direction from the rear to the nose of the aircraft (hereafter referred to as “nose direction”).
- the nose direction is a direction which is perpendicular to the face of the paper.
- Two rail installation stands 12 and 13 being parallel in the nose direction are fixed on the ceiling face 3 A of the ceiling portion 3 .
- a rail 14 is fixed to the lower face of the rail installation stand 12
- a rail 15 is fixed to the lower face of the rail installation stand 13 .
- a left block 16 is attached to the rail 14
- a right block 17 is attached to the rail 15 . As shown in FIG.
- the left end portion 4 A of the display apparatus body 4 is supported by the rail 14 (not shown) via the two left blocks 16 installed with a predetermined distance therebetween in the nose direction indicated by an arrow 68 .
- the right end portion 4 B of the display apparatus body 4 is supported by the rail 15 (not shown) via the two right blocks 17 installed with a predetermined distance therebetween in the nose direction.
- the display apparatus body 4 is installed on the ceiling face 3 A via the two left blocks 16 and the two right blocks 17 .
- the fixture device that will be described below comprises the left blocks 16 , the right blocks 17 and a fixture block 25 that will be described later.
- FIGS. 16 ( a ), ( b ) and ( c ) are perspective views showing the conventional left block 16 configured so as to be installable and removable easily.
- FIGS. 16 ( a ) to ( c ) show steps of installing the left block 16 on the rail 14 shown partially cut away. In FIG. 16 ( a ), the left block 16 is inserted into the rail 14 from the opening 14 A of the rail 4 . Next, as shown in FIG.
- a bar wrench 20 having a hexagonal cross-section is inserted into the hexagonal hole in a hexagonal socket head bolt 18 in the left block 16 , and turned about 90° in a direction indicated by an arrow 29 A as shown in ( c ) of the same figure.
- a nut plate 22 fixed to the tip of the hexagonal socket head bolt 18 is turned about 90°, whereby both the tip portions 22 A thereof engage the bent portions 14 B of the rail 14 .
- One left block 16 has two hexagonal socket head bolts 18 ; hence, by turning four hexagonal socket head bolts 18 in total for the two left blocks 16 about 90°, the two left blocks 16 are installed on the rail 14 . In this state, the left blocks 16 can be moved along the rail 14 .
- FIGS. 17 ( a ) and ( b ) the fixture block 25 to be connected to the left block 16 is provided on the left end portion 4 A of the display apparatus body 4 .
- FIG. 17 ( a ) is a perspective view showing a state before the fixture block 25 is connected to an attachment window 24 formed in the left block 16 .
- the fixture block 25 has an arm 28 rotatably supported by a shaft 27 on a base plate 26 .
- the arm 28 is thinned like the shape of a comb to reduce its weight.
- a projection plate 29 is provided at the end of the arm 28 .
- the base plate 26 is fixed to the left end portion 4 A of the display apparatus body 4 by three sets of bolts and nuts 30 .
- FIG. 17 ( b ) shows a state wherein the projection plate 29 is inserted into the attachment window 24 of the left block 16 as will be described later in detail.
- the right blocks 17 for supporting the right end portion 4 B of the display apparatus body 4 shown in FIG. 15 .
- the two right blocks 17 are fixed in advance with the predetermined distance therebetween on the right end portion 4 B of the display apparatus body 4 .
- FIGS. 18 ( a ) to ( c ) show steps of attaching the right block 17 of the display apparatus body 4 to the right rail 15 .
- at least two workers lift the display apparatus body 4 , and insert the projection plate 29 of the arm 28 of the fixture block 25 into the installation window 24 as shown in FIG. 17 ( a ). While one of the workers holds the display apparatus body 4 so that the projection plate 29 does not come out from the installation window 24 , the other worker connects the connector (not shown) of a connection cable, which supplies electrical power and signals to the display apparatus body 4 , to the display apparatus body 4 by using both hands.
- the right block 17 fixed to the right end portion 4 B of the display apparatus body 4 is inserted into the inside of the rail 15 from the opening 15 A of the rail 15 as shown in FIG. 18 ( a ).
- a triangular guide plate 33 of the right block 17 facilitates the insertion of the right block 17 into the opening 15 A.
- the distance between the left and right rails 14 and 15 is not always constant but varies at various portions of the aircraft body.
- the projection plate 29 of the arm 28 shown in FIG. 18 ( a ) moves in and out from the insertion window 24 depending on the variation, whereby the installation of the right block 17 is done without causing problems in spite of some variations.
- a hexagonal socket head bolt 18 is turned by about 90° by using the wrench 20 in the direction indicated by an arrow 20 A as shown in ( c ) of the same figure.
- a nut plate 22 fixed to the tip of the hexagonal socket head bolt 18 is turned about 90°, whereby both the tip portions 22 A thereof engage the bent portions 15 B of the rail 15 .
- Two nut plates 22 are provided for one right block 17 ; hence, by turning four hexagonal socket head bolts 18 in total for the two right blocks 17 about 90°, the two right blocks 17 are attached to the rail 15 .
- the bent portions 15 B are held between the tip portions 22 A of the nut plates 22 and the right blocks 17 , whereby the display apparatus body 4 is firmly fixed to the rail 15 .
- the right block 17 shown in FIG. 18 will be described further in detail.
- the right block 17 is referred to as a fixture device 110 .
- FIG. 20 is an external view of a conventional fixture device 110 .
- the fixture devices 110 are installed on the display apparatus body 4 as shown in FIG. 21 .
- the display apparatus body 4 is fixed to the rails 111 on the body side in the ceiling portion of a vehicle by turning hexagonal socket head bolts 116 by using a bar wrench 112 having a hexagonal cross-section as shown in FIGS. 25 ( a ) to ( d ).
- FIG. 23 an exploded view, shows the configurations of the components of the conventional fixture device 110 .
- a nut plate 114 shown in FIG. 23 has an internal thread at its center, and installed between the rib 113 x of a height X and the rib 113 y of a height Y of a block 125 , by using bolts 116 each passing through a washer 117 and a highly flexible coil spring 120 .
- the following relationships are selected among the height X of the rib 113 x, the height Y of the rib 113 y and the thickness (hereafter simply referred to as the thickness of the rail 111 ) of the rack portions 111 m and 111 n of the rail 111 shown in FIG. 24 . Namely, the relationships are as follows: the height X ⁇ the thickness of the rail 111 and the height X ⁇ the height Y.
- a nut 121 is engaged with the tip of the bolt 116 and fixed to the bolt 116 with an adhesive.
- the nut 121 is turned when the bar wrench 112 , having a hexagonal cross-section, for example, is inserted into the hexagonal hole in the bolt 116 and raised and turned clockwise.
- the nut plate 114 passes the rib 113 x ( FIG. 23 ) having the height X of the block 113 and is turned clockwise. It is fixed to the bolt 116 so as to have a height making contact with the rib 113 y having the height Y of the block 113 , and thereby not turning, if the wrench is turned counterclockwise.
- the block 113 is connected to the base 115 via a through shaft 123 , and the through shaft 123 is fixed by a split pin 124 inserted into the rear (right) end thereof.
- the wrench 112 is inserted into the hexagonal hole of the bolt 116 and raised and turned clockwise.
- the nut plate 114 passes over the rib having the height X of the block 113 , turns clockwise and makes contact with the inner walls 111 w ( FIG. 24 and FIG. 25 ) of the rail 111 having a frame shape in cross-section, and then stops.
- the display apparatus 4 has nut plates at eight positions in total, and all of them are set in this state. However, when the bolts 116 are loosened slightly from its completely tight position, the display apparatus 4 can be moved slightly along the rail 111 , whereby positional adjustment is made possible.
- the conventional fixture device 110 is fixed to the rail 111 .
- the display apparatus 4 can be fixed completely to the rails 111 on the aircraft body in the ceiling portion.
- the nut plate 114 is released by turning the bolt 116 counterclockwise, thereby releasing the friction force with the rack-shaped portions 111 m and 111 n of the rail 111 .
- the nut plate 114 is turned counterclockwise depending on the turning of the bolt 116 and makes contact with the higher rib on the upper face of the block 113 , that is, the rib 113 y having the height Y.
- the bolt 116 is turned counterclockwise further until the nut plate 114 is raised by the bolt 116 to a position making contact with the nut 121 , the nut plate 114 is moved beyond the rib 113 y and becomes parallel with the opening groove 111 g ( FIG. 25 ) of the rail 111 .
- the display section 6 is retracted into the display apparatus body 4 during takeoff and landing.
- the display apparatus body 4 is provided with the latch devices to prevent the display section 6 from jumping out because of shocks and the like during takeoff and landing.
- FIGS. 26 ( a ) and ( b ) show the latch operation of the conventional latch device.
- a conventional latch device 230 shown in FIG. 26 ( a ) is disposed on the display apparatus body 4 and engages the display section 6 retracted into the display apparatus body 4 , thereby preventing unnecessary opening of the display section 6 .
- FIG. 26 ( a ) shows the state of the engagement, and ( b ) thereof shows an intermediate state in an opening operation.
- FIGS. 26 ( c ) and ( d ) show intermediate states in the retraction.
- FIG. 26 ( a ) shows a state wherein the display section 6 is retracted into the display apparatus body 4 , and the engagement protrusion 236 of the rotary shaft 234 of the latch device 230 engages the recessed section 260 formed at the bottom face of the display section 6 .
- the rotary shaft 234 is combined with a rotary plate 232 so as to be rotatable about a shaft 235 .
- the rotary shaft 234 is held by an elastic plate spring 237 that is bent slightly with respect to the rotary plate 232 .
- FIG. 26 ( b ) shows a state wherein the opening operation is performed, that is, the display section 6 is rotated with respect to the display apparatus body 4 and opened.
- the open/close operation portion 7 ( FIG. 14 ) controls a direct current applied to a plunger 238 by an opening command from a microcomputer provided outside the apparatus so that the opening operation is performed, that is, the display section 6 is rotated and opened.
- the direct current flows through the plunger 238
- the slide shaft 233 disengages the hole in the rotary plate 232 .
- the rotary shaft 234 and the rotary plate 232 become integrally rotatable about the shaft 235 .
- the rotary shaft 234 is rotated by the opening operation of the display section 6 , and the engagement projection 236 disengages the recessed section 260 .
- the slide shaft 233 is inserted into the hole in the rotary plate 232 .
- the engagement protrusion 236 of the rotary shaft 234 does not rotate clockwise in FIG. 26 ( a ).
- the engagement protrusion 236 is rotatable counterclockwise in FIG. 26 ( a ), but does not rotate further since the display apparatus body 4 is disposed above the display section 6 .
- FIGS. 26 ( c ) and ( d ) show the state of retracting the display section 6 .
- the engagement protrusion 236 of the rotary shaft 234 makes contact with the display section 6 and rotates counterclockwise. Then, when the engagement protrusion 236 engages the recessed section 260 of the display section 6 , the engagement protrusion 236 is returned to its original position by the plate spring 237 , and the display position 6 is securely retracted and held in the display apparatus body 4 .
- the conventional fixture device has the following problems.
- When installing the display apparatus body 4 on the left and right rails 14 and 15 at least two workers are required.
- one problem of the conventional fixture device is that the labor cost for the installation is high.
- the present invention is intended to provide a fixture device for a display apparatus body, capable of being installed by one worker.
- both ends of the nut plate 114 are not placed properly on the rack-shaped portions 111 m and 111 n of the rail 111 .
- the nut plate 114 is only engaged with the upper face of the block 113 as shown at the upper right in FIG. 25 ( d ) and FIG. 24 ( d ). If both the nut plates 114 are in this state, the fixture device 110 disengages from the rail 111 . However, at this time, the bolts 116 are completely tightened and secured, just as in the case shown in FIG. 24 ( c ) wherein the bolts are tightened at proper positions.
- the present invention intends to solve the above-mentioned problem by detecting a wrong installation in the case that the nut plates are tightened at the improper positions.
- the rotary shaft 234 is rotated so that the engagement protrusion 236 engages the recessed section 260 in the display section 6 . Therefore, it is required that the size of the recessed section 260 in the display section 6 is made larger than the shape of the engagement protrusion 236 so as to give a clearance therebetween.
- a problem of the conventional latch device is that the retracted display section 6 rattles depending on the clearance when it receives shocks and the like.
- another problem of the apparatus is that, since the drive shaft of the plunger 238 is linearly connected to the slide shaft 233 in the drive direction thereof, the apparatus is relatively large. Still further, the conventional latch device comprises many components having complicated shapes, which increase the cost of production and cause the problem of raising the cost of the apparatus.
- the present invention is intended to provide a latch device comprising a reduced number of components having simple shapes, wherein the latch devices provided for a display section and a display apparatus body are fitted securely without wobble in the retracted state, and the display apparatus provided with the latch devices can be made compact.
- a fixture device of an apparatus in accordance with another aspect of the present invention for fixing an apparatus, such as a display apparatus to an external face of the ceiling portion or the like of a vehicle comprises:
- each rail provided with a frame-shaped cross-sectional structure having an internal space therein, and also having a narrow opening groove being open outward, i.e., downward, from the internal space and a pair of narrow rack-shaped portions formed on both sides of the opening groove,
- a block of the fixture device having loose-fitting holes in a vertical direction and having an upper width suited so that the upper portion thereof is inserted into the opening groove
- a fixing member for engaging the apparatus with the block of the fixture device.
- An apparatus installation method in accordance with the present invention comprises:
- FIG. 1 ( a ) is a perspective view showing a state before the connection of a left block 36 and a fixture block 45 in accordance with a first embodiment of the present invention
- FIG. 2 is an exploded perspective view showing the fixture block in accordance with the first embodiment of the present invention
- FIG. 3 ( a ) is a sectional view taken on line III-III of FIG. 1 , showing the connection state of the left block 36 and the fixture block 45 in accordance with the first embodiment of the present invention and also showing a state wherein the cut-and-raised portion 52 A of a release lever 52 falls in a latch hole 44 A;
- FIG. 3 ( b ) is a view showing a state wherein the cut-and-raised portion 52 A comes out from the latch hole 44 A;
- FIG. 4 is a side sectional view showing a state wherein a display apparatus body hangs down from the left blocks;
- FIG. 5 is a perspective view showing a fixture device in accordance with a second embodiment of the present invention.
- FIG. 6 is an exploded perspective view showing the fixture device in accordance with the second embodiment of the present invention.
- FIGS. 7 ( a ), ( b ), ( c ) and ( d ) are sectional views showing a state wherein a display apparatus is fixed to a rail by the fixture device in accordance with the above-mentioned second embodiment;
- FIGS. 8 ( a ), ( b ), ( c ) and ( d ) are perspective views showing the installation steps of the fixture device in accordance with the above-mentioned second embodiment
- FIGS. 9 ( a ), ( b ), ( c ), ( d ) and ( e ) are partially sectional views showing the display apparatus body and the display section provided with a latch device in accordance with a third embodiment of the present invention.
- FIG. 10 ( a ) is a plan view showing the latch device in accordance with the third embodiment
- FIG. 10 ( b ) is a right side view
- FIG. 10 ( c ) is a front view
- FIG. 10 ( d ) is a left side view
- FIG. 10 ( e ) is a rear view
- FIG. 11 ( a ) is a sectional view showing the latch device in accordance with the third embodiment, showing the retracted state of the display section; and FIG. 11 ( b ) shows the extended state of the display section;
- FIG. 12 ( a ) is an exploded perspective view showing the upper latch, lower latch, balls and latch springs of the latch device in accordance with the third embodiment
- FIG. 12 ( b ) is a sectional view
- FIG. 12 ( c ) is a plan view of opposed faces of the upper latch and the lower latch;
- FIG. 13 ( a ) is a left side view showing a state wherein the latch device in accordance with the third embodiment is installed on the display apparatus;
- FIG. 13 ( b ) is a plan view;
- FIG. 13 ( c ) is a right side view of the opened display section;
- FIG. 13 ( d ) is a front view of the opened display section;
- FIG. 14 ( a ) is a perspective view showing a state wherein the display section 6 of the display apparatus body 4 in accordance with the conventional example and the present invention in the ceiling portion of the cabin of a passenger aircraft is not used; and FIG. 14 ( b ) is a perspective view showing a state wherein the display section 6 is used;
- FIG. 15 is a cross sectional view showing the ceiling portion of the cabin of the passenger aircraft provided with the display apparatus body in accordance with the conventional example and the present invention, viewed from the rear to the nose of the aircraft;
- FIGS. 16 ( a ), ( b ) and ( c ) are perspective views showing steps of installing the conventional left block 16 on the left rail 14 ;
- FIG. 17 ( a ) is a perspective view showing a state before the conventional left block 16 is connected to the fixture block 25 ; and FIG. 17 ( b ) is a perspective view showing a state after the connection;
- FIGS. 18 ( a ), ( b ), and ( c ) are perspective views showing steps of installing the conventional right block 17 on the right rail 15 ;
- FIG. 20 is a perspective view showing the conventional fixture device
- FIGS. 21 ( a ), ( b ) and ( c ) are a bottom view, a front view and a side view, respectively, showing the display apparatus installed in the ceiling of the cabin;
- FIG. 22 is a cross sectional view showing the ceiling portion of the cabin
- FIG. 23 is an exploded perspective view showing the components of the conventional fixture device
- FIGS. 25 ( a ), ( b ), ( c ) and ( d ) are perspective views showing the operation sequence at the time when the conventional fixture device is installed.
- FIGS. 26 ( a ), ( b ) ( c ) and ( d ) are partial side views showing the operation of the conventional latch device.
- FIG. 1 to FIG. 13 Preferred embodiments of the present invention will be described referring to FIG. 1 to FIG. 13 .
- the fixture device of the present invention is an improvement of the conventional fixture device comprising the left block 16 and the fixture block 25 for supporting the left end portion 4 A of the display apparatus body 4 in FIG. 17 of the conventional technology. Since the configurations other than the left block and the fixture block are the same as those in the description of the above-mentioned conventional technology, the components are designated by the same reference numerals and described simply.
- FIG. 1 ( a ) is a perspective view showing the fixture device in accordance with the present invention, and shows a state before the projection plate 49 of a fixture block 45 is inserted into the installation window 44 of a left block 36 so as to couple both.
- FIG. 1 ( b ) shows a state after both have been coupled by the insertion.
- the left block 36 is attached to a rail 14 that is not shown, in accordance with steps similar to those for the conventional technology shown in FIG. 16 .
- the base plate 46 of the fixture block 45 is fixed to the display apparatus body 4 with three sets of the bolts and nuts 30 .
- FIG. 2 is an exploded perspective view of the fixture block 45 .
- an arm 48 thinned like the shape of a comb has the projection plate 49 to be inserted into the installation window 44 of the left block 36 .
- the projection plate 49 has a hollow portion 57 having an opening in its lower face.
- a guide hole 58 communicating with the above-mentioned hollow portion 57 of the projection plate 49 is provided at the center portion of the arm 48 shown in FIG. 2 .
- An L-shaped release lever 52 is inserted into the guide hole 58 .
- a plate spring 53 for applying a rotation force to the release lever 52 in a direction indicated by an arrow 60 and a holder 54 are placed upon the lever section 52 B of the release lever 52 , and fixed with two male screws 55 to the female threads 56 in the arm 48 .
- the release lever 52 is biased in the direction indicated by the arrow 60 in FIG. 3 ( a ).
- a cut-and-raised portion 52 A is provided at the tip of the release lever 52 .
- the cut-and-raised portion 52 A is a tongue-shaped section projecting downward from the lower face of the release lever 52 as shown in FIG. 3 ( a ).
- the worker attaches the left blocks 36 to the rail 14 in accordance with steps similar to those for the conventional left blocks 16 shown in FIG. 16 .
- the fixture blocks 45 in accordance with this embodiment are attached beforehand to the left end portion 4 A of the display apparatus body 4 by using the bolts and nuts 30 .
- Blocks similar to the conventional right blocks 17 shown in FIG. 18 are attached beforehand to the right end portion 4 B of the display apparatus body 4 .
- the worker lifts the right end portion 4 B of the display apparatus body 4 , inserts the right blocks 17 into the openings 15 A of the rail 15 as shown in FIG. 18 , and mounts the right blocks 17 on the rail 15 by using the wrench 20 in a method similar to the conventional method. Since the hole 44 A is made wider than the cut-and-raised portion 52 A, the projection plate 49 can move slightly with respect to the left block 36 , whereby the right block 17 can be inserted easily into the opening 15 A of the rail 15 even when a slight positional deviation is present between the rail 15 and the right block 17 . By turning the hexagonal socket head bolts 18 about 90° by using the wrench 20 , the right block 17 can be mounted on the rail 15 .
- the left blocks 16 and the right blocks 17 are supported by the rails 14 and 15 via only the tip portions 22 A of the nut plates 22 .
- the display apparatus body 4 can be moved and positioned at a desired position by sliding the left blocks 36 and the right blocks 17 inside the rails 14 and 15 .
- the four hexagonal socket head bolts 18 for the two left blocks 36 and the four hexagonal socket head bolts 18 for the two right blocks 17 are turned by a number of turns in the direction indicated by the arrow 20 A shown in FIG. 16 and FIG. 18 .
- the bent portions 14 B of the rail 14 are held between the tip portions 22 A of the nut plates 22 and the upper face of the left block 36 , thereby fixing the left block 36 to the rail 14 .
- the bent portions 15 B of the rail 15 are held between the tip portions 22 A of the nut plates 22 and the upper face of the right block 17 , thereby fixing the right block 17 to the rail 15 .
- the nut plates of the fixture device are pushed upward, rotated into contact with the rail of the ceiling portion of a vehicle, and then tightened using bolts. Hence, the nut plates are fixed to the rail, thereby fixing the display apparatus to the ceiling portion. In a state before the bolts are tightened completely, the display apparatus can be moved to a desired position along the rail.
- the heavy display apparatus can be fixed securely on the ceiling portion of the vehicle, thereby enhancing safety and reliability.
- FIG. 14 shows the ceiling portion of a passenger aircraft and the display apparatus body 4 disposed therein.
- FIG. 21 is a view showing the fixture positions of the fixture devices on the display apparatus.
- FIG. 22 shows a state wherein the display apparatus shown in FIG. 21 is fixed to the ceiling portion.
- FIG. 5 is a perspective view showing the fixture device in accordance with this embodiment of the present invention.
- FIG. 6 is an exploded perspective view showing the components configuration of the fixture device shown in FIG. 5 .
- FIGS. 7 ( a ) to ( d ) are views showing the sequence of the installation operations of the device in this embodiment.
- FIGS. 8 ( a ) to ( d ) are perspective views showing the sequence of the operations in FIGS. 7 ( a ) to ( d ).
- the nut plate 114 has a threaded hole 241 having an internal thread in the center thereof.
- the tip portion of the hexagonal socket head bolt 116 passing through a washer 117 , a spring washer 118 having a predetermined compression deformation amount and placed thereon, a sleeve 119 having a predetermined length and placed thereon, and the flexible coil spring 120 outside the sleeve 119 are screwed into the threaded hole 241 in the nut plate 114 .
- the nut 121 is screwed and bonded to the tip of the bolt 116 .
- the nut plate 114 is disposed between the lower rib (a small protrusion) 113 x of a height X and the higher rib 113 y of a height Y on the upper face of the block 113 .
- the following relationships are selected among the height X of the rib 113 x, the height Y of the rib 113 y and the thickness D ( FIG. 7 ) (hereafter simply referred to as the thickness of the rail 111 ) of the rack portions 111 m and 111 n of the rail 111 .
- the relationships are as follows: [the height X] ⁇ [the thickness D of the rail 111 ] and [the height X] ⁇ [the height Y].
- the nut 121 is turned when the bar wrench 112 having a hexagonal cross-section is inserted into the hexagonal hole in the bolt 116 and raised and turned clockwise, and the nut plate 114 passes the rib 113 x ( FIG. 6 ), having the height X, of the block 113 and turns clockwise.
- the nut plate 114 is fixed to the bolt 116 so as to have a height making contact with the rib 113 y, having the height Y, of the block 113 and thereby not turning when the wrench 112 is turned counterclockwise.
- the block 113 is connected to the base 115 by a through shaft 123 , and the through shaft 123 is fixed by the split pin 124 inserted into the rear (right) end thereof.
- the wrench 112 is inserted into the hole in the bolt 116 and turned clockwise about 90° (substantially 90°) while the wrench 112 is raised.
- the nut plate 114 passes over the rib 113 x having the height X of the block 113 and turns clockwise. Both end portions thereof make contact with the inner walls 111 w of the frame-shaped rail 111 in cross-section ( FIG. 7 and FIG. 8 ) and then stop.
- the eight nut plates in the display apparatus 4 are set in this state.
- the display apparatus 4 can be moved slightly along the rail 111 , whereby positional adjustment is made possible.
- this fixture device 110 is fixed to the rail 111 .
- the display apparatus 4 can be fixed completely to the rails 111 on the aircraft body in the ceiling portion.
- the nut plate 114 is released by turning the bolt 116 counterclockwise, thereby releasing the friction force with the rack-shaped portions 111 m and 111 n of the rail 111 .
- the nut plate 114 is turned counterclockwise as the bolt 116 is turned and makes contact with the higher rib on the upper face of the block 113 , that is, the rib 113 y having the height Y.
- the bolt 116 is turned counterclockwise until the nut plate 114 is raised by the bolt 116 to a position making contact with the nut 121 .
- the nut plate 114 is moved beyond the rib 113 y and becomes parallel with the opening groove 111 g of the rail 111 .
- all the eight nut plates 114 are turned counterclockwise. Hence, all the eight nut plates 114 become parallel with the opening grooves 111 g, whereby the display apparatus 4 can be removed from the rails 111 on the aircraft body in the ceiling portion.
- the length of the firmly fastened integration comprising the head (the flange-shaped portion at the lower end in FIG. 6 ) of the tightened bolt 116 , the washer 117 , the spring washer 118 , the sleeve 119 , and the nut plate 114 , is longer than the depth of a loose-fitting hole 113 u for inserting the bolt of the block 113 .
- the diameter of the loose-fitting hole 113 u in which the bolt and the coil spring are inserted is larger than the diameter of the sleeve 119 except proximate the upper face of the block 113 , whereby the sleeve 119 can move freely inside the loose-fitting hole 113 u.
- the diameter of the spring washer is selected so that the spring washer 118 can be inserted in the lower portion of the loose-fitting hole 113 u.
- a clearance exists between the upper face of the nut plate 114 and the lower portion of the nut 121 . Furthermore, a clearance Z exists between the upper face of the washer 117 and the lower end of the loose-fitting hole 113 u as shown in FIG. 7 ( d ). Therefore, when the wrench 112 is pushed up, the bolt 116 and the washer 117 are lifted while compressing the coil spring 120 . However, when the pushing force of the wrench 112 is released, the bolt 116 is pushed back downward by the recovery force of the coil spring 120 .
- the rattle heard and the vibrations felt which occur when the washer 117 makes contact with the lower step portion 113 d of the loose-fitting hole 113 u of the block 114 because of the up-down movement of the bolt 116 from the deformations of the spring washer 118 and the coil spring 120 , are used as a means for indicating improper installation.
- the spring washer 118 is used in the above-mentioned configuration to reliably turn the nut plate 114 substantially 90° by rotating the bolt 116 while pushing it up.
- play that is, the clearance Z
- the clearance Z is formed between the head (in reality, the washer 117 disposed just above it) of the bolt 116 and the lower face (in reality, the lower step portion 113 d of the loose-fitting hole 113 u ) of the block 113 .
- a loose-fitting cylinder having a predetermined length that is, the sleeve 119 , is loosely fitted between the coil spring 120 and the bolt 116 . In this case, as shown in FIG.
- a latch device in accordance with a third embodiment of the present invention will be described referring to FIG. 9 to FIG. 13 .
- the latch device described in this embodiment is disposed in the ceiling portion of a passenger aircraft and is used for a display apparatus for displaying video images. Therefore, since the latch device in accordance with this embodiment is used in a situation similar to that of the above-mentioned conventional display apparatus shown in FIG. 14 , the latch device in accordance with this embodiment will be described referring to the reference numerals for the display apparatus used in FIG. 14 .
- the display apparatus 3 is arranged in the lower portion of the baggage rack 5 in the ceiling portion 2 of the passenger aircraft, and comprises the display apparatus body 4 , the display section 6 is configured to be retractable into the display apparatus body 4 , and the open/close operation section 7 is used for opening/closing this display section 6 .
- the display section 6 is provided with the display member 8 , such as an LCD (liquid crystal display), serving as a flat panel display means.
- the display member 8 is supported at the most suitable angle.
- FIGS. 9 ( a ) to ( e ) are sectional views illustrating the engagement operation between the display apparatus body 4 provided with a latch device 250 in accordance with this embodiment and the display section 6 retracted into the display apparatus body 4 .
- the latch device 250 in accordance with this embodiment is disposed on the display apparatus body 4 , and is configured so that a latch section 300 having an upper latch 210 and a lower latch 211 is fitted into a recessed hole 214 formed on a side face of the retractable display section 6 .
- a plunger 215 is disposed above the display member 8 of the retracted display section 6 .
- FIG. 9 ( a ) shows a state wherein the slide shaft 219 is pushed by the plate spring 218 and is moved downward.
- FIG. 9 ( b ) shows a state wherein the plate spring 218 is no longer pushing the slide shaft 219 and the slide shaft 219 is pushed up by a coil spring 220 .
- the coil spring 220 is provided between the rim 21 of the slide shaft 219 and the frame of the display apparatus body 4 and biases the slide shaft 219 upwardly at all times.
- FIG. 10 is a view showing the latch device 250 provided for the display apparatus body 4 , wherein ( a ) is a plan view, ( b ) is a left view, ( c ) is a front view, ( d ) is a right view, and ( e ) is a rear view.
- FIG. 11 is a side view of the internal mechanism of the latch device shown in FIG. 10 , wherein ( a ) shows a state wherein the actuator 216 is moved leftward and ( b ) shows a state wherein the plunger 215 is energized and the actuator 216 is moved rightward.
- one end of the plate spring 218 is fixed to the frame of the display apparatus body 4 , and the other end slidably engages an arm 217 attached nearly perpendicular to the tip of the actuator 216 . Therefore, with the leftward and rightward movements of the actuator 216 , the plate spring 218 presses the upper end of the slide shaft 219 and drives it upwardly and downwardly.
- open/close signals are sent from the open/close operation portion 7 to the plunger 215 via a signal cable 222 .
- a hook 223 provided at the lower end of the latch device 250 engages the frame of the display apparatus body 4 to facilitate positioning thereof.
- FIG. 12 ( a ) is an exploded perspective view of the latch section 300 .
- the latch section 300 comprises the upper latch 210 , the lower latch 211 , four balls 212 , and two latch springs 213 .
- FIG. 12 ( b ) is a sectional view showing the latch section 300
- ( c ) is a plan view showing the shapes of the opposed faces of the upper latch 210 and the lower latch 211 .
- FIG. 12 ( b ) is a sectional view taken along the line B-B of the plan view in ( c ).
- the upper latch 210 is attached to the lower latch 211 with the balls (steel balls) 212 held therebetween.
- Projection sections are formed on the upper latch 210 and the lower latch 211 to fit into the recessed hole 214 in the display section 6 .
- a protrusion 211 b is formed to protrude from a face of the lower latch 211 opposed to the upper latch 210 .
- the lower latch 211 and the upper latch 210 are positioned with respect to each other using the protrusion 211 b.
- holes for holding the balls 212 are formed on the mutually opposed faces (see FIG. 12 ( c )) of the projection sections of the upper latch 210 and the lower latch 211 . As shown in FIG.
- slots 210 c are formed in the upper latch 210 to hold the balls 212 so that the balls 212 are movable parallel to the projection direction (the X direction in FIG. 12 ( a )) of the projection section by a predetermined distance (about 0.5 mm). Furthermore, the upper latch 210 is pressed at all times by the latch springs 213 in a direction (the Y direction in FIG. 12 ( a )) opposite to the projection direction.
- the latch section 300 is configured as described above, when only the upper latch 210 is pressed and moved in the Y direction ( FIG. 12 ( a )), the lower latch 211 connected thereto via the balls 212 also moves simultaneously in the same direction. On the contrary, when only the lower latch 211 is pressed and moved in the Y direction, the upper latch 210 starts moving only after the lower latch 211 has moved by about 0.5 mm.
- An inclined face 211 d is formed on the rear side of the latch section 300 to contact the lower end of the slide shaft 219 at all times.
- the lower end of the slide shaft 219 is formed to have an inclined face to make face-to-face contact with the inclined face 211 d of the latch section 300 .
- FIG. 9 ( a ) is a state wherein the display section 6 is retracted into the display apparatus body 4 , and the upper latch 210 and the lower latch 211 are fitted into the recessed hole 214 of the display section 6 .
- the plate spring 218 presses the slide shaft 219 downwardly by virtue of the arm 217 , the tip of the slide shaft 219 presses the inclined face portion of the lower latch 211 , and the upper latch 210 makes contact with the side face of the slide shaft 219 .
- the display section 6 does not perform the opening operation by which the display section 6 is rotated with respect to the display apparatus body 4 to open the display section 6 .
- FIG. 9 ( b ) shows an initial state for performing the opening operation by which the display section 6 is rotated with respect to the display apparatus body 4 and is opened.
- the plunger 215 is energized by an opening command from a microcomputer outside the apparatus, and the actuator 216 is moved rightwardly, as shown in FIG. 9 ( b ).
- the plate spring 218 is pulled rightwardly by the movement of the actuator 216 , thereby releasing the restriction of the movement of the slide shaft 219 .
- the slide shaft 219 is moved upwardly by the elastic force of the coil spring 220 .
- the inclined face portion of the upper latch 210 makes contact with the tip of the slide shaft 219 , whereby the upper latch 210 is pushed by the latch spring 213 and moves leftwardly in FIG. 9 ( b ). At this time, the lower latch 211 also moves by the same distance. Hence, the projection distance of the projection section of the latch section 300 is decreased.
- the state shown by FIG. 9 ( c ) is a state wherein the display section 6 has turned with respect to the display apparatus body 4 from the state shown in FIG. 9 ( b ).
- the upper latch 210 and the lower latch 211 are pushed by the display section 6 and moved leftward further.
- the slide shaft 219 is lifted upwardly by the leftward movement of the upper latch 210 .
- the upper end of the slide shaft 219 makes contact with the plate spring 218 that is in a bendable state, the slide shaft 219 upwardly movable.
- the lower latch 211 is able to be moved leftward with respect to the upper latch 210 .
- FIG. 9 ( d ) shows a state wherein the display section 6 has turned further from the state in FIG. 9 ( c ) and is completely separated from the latch section 300 .
- no direct current flows to the plunger 215 , and the actuator 216 has returned to its original position (the state shown in FIG. 9 ( a )).
- the slide shaft 219 is pushed down by the plate spring 218 , and the upper latch 210 and the lower latch 211 return to their original positions.
- FIG. 9 ( e ) shows a state wherein the display section 6 is retracted into the display apparatus body 4 , and the display section 6 makes contact with the lower latch 211 .
- the lower latch 211 is pressed by the display section 6 and moved leftwardly.
- the slide shaft 219 is lifted upwardly and the plate spring 218 is lifted upwardly. Since the rotation force at the time when the display section 6 is retracted is sufficiently larger than a load at the time when the display section 6 is displaced because of shocks or the like, the upper latch 210 is also moved leftwardly.
- the lower latch 211 initially moves because of the contact between the display section 6 and the latch section 300 .
- the slide shaft 219 is pushed upwardly, and the inclined face of the tip of the slide shaft 219 makes contact with the inclined face portion of the upper latch 210 . Since the upper latch 210 makes contact with the inclined face of slide shaft 219 , as described above, when the lower latch 211 is moving, the upper latch 210 starts moving leftward via the balls 212 .
- the upper latch 210 and the lower latch 211 moving in this way, are returned to their original positions by the elastic force of the plate spring 218 when they are fitted into the recessed hole 214 in the display section 6 , whereby the display section 6 is securely held in the display apparatus body 4 .
- FIG. 13 is a view showing a state wherein the latch device in accordance with this embodiment is built in the display apparatus body 4 , wherein (a) is a left side view, (b) is a plan view, (c) is a right side view showing a state wherein the display section 6 is opened, and (d) is a front view showing a state wherein the display section 6 is opened.
- the slide shaft 219 and the actuator 216 of the plunger 215 are disposed in the shape of an L. In this way, it is possible to prevent the apparatus from becoming larger in size because of the mounting of the latch device, and a compact apparatus is achieved.
- the fixture blocks are fixed to the left block. Therefore, the display apparatus body will not fall even when a worker releases his hands from the display apparatus body. In this way, the worker can carry out necessary cable connection work with both of his free hands. After the completion of the cable connection work, the worker lifts the right end portion of the display apparatus body and fixes the right blocks to the rail. Since these steps of work can be carried out by one worker, the cost of labor for the installation is reduced.
- the bolt moves up and down and rattles when pushed with a wrench or the like. Because of this, it is possible to detect that the fixture is improperly installed.
- the heavy display apparatus can be fixed securely to the ceiling portion of the vehicle, thereby enhancing safety and reliability thereof.
- the display section and the display apparatus body are fitted securely, whereby rattles due to vibration, shocks, etc. are not caused.
- the latch device is configured in the shape of an L, whereby the depth of the display apparatus body provided with the latch device can be reduced.
- the latch device in accordance with the present invention comprises reduced number of components and the shapes of components are simple in comparison with a conventional device, it is easier and less costly to produce than the conventional latch device.
Abstract
An apparatus fixture device for fixing an apparatus to a ceiling portion of a vehicle includes at least one pair of rails for carrying a load when the apparatus is installed. Each rail has a narrow opening groove and a pair of rack-shaped portions on both sides thereof. A block has loose-fitting holes and an upper width insertable into the opening groove. Bolts are loosely fitted into the holes of the block. A cylinder is loosely fitted between the bolt and the hole. Nut plates have a nut hole to be screwed with the bolt. When the bolt is turned and pushed upwardly, end portions of the nut plates extend across the opening groove and are placed on the pair of rack-shaped portions and pulled downward by a tightening force of the bolt screwed into the nut hole. A fixing member engages the apparatus to the block.
Description
- This application is a Divisional of U.S. patent application Ser. No. 10/970,287, filed Oct. 21, 2004, which was a Divisional of U.S. patent application Ser. No. 10/111,352, filed Apr. 22, 2002, which is now U.S. Pat. No. 6,811,129 and which was a Section 371 of International Application No. PCT/JP01/07071, filed on Aug. 16, 2001, the disclosure of which is incorporated herein by reference.
- 1. Technical Field
- The present invention relates to a fixture device for fixing a display apparatus on the ceiling portion of a vehicle, such as an aircraft, and to a fixture apparatus for fixing a display section to the display apparatus.
- 2. Background Technology
- In recent years, entertainment systems for providing music, video images, etc. to passengers are provided in the cabin of a vehicle, such as a passenger aircraft; for this purpose, a display apparatus for displaying video images are installed. In particular, a display apparatus for the entertainment system of an aircraft is herein taken as an example to describe.
- FIGS. 14(a) and (b) are perspective views showing a
display apparatus body 4 having adisplay section 6, such as an LCD display apparatus, installed in the ceiling portion and the lower portion of abaggage rack 5 in the cabin of a passenger aircraft.FIG. 14 (a) shows the retracted state (the state of nonuse) of thedisplay section 6 of thedisplay apparatus body 4, and (b) of the same figure shows the state of use. In FIGS. 14(a) and (b), thedisplay apparatus body 4 is arranged at the lower portion of thebaggage rack 5 of the passenger aircraft, and comprises thedisplay section 6 and an open/close operation portion 7. Thedisplay section 6 has adisplay member 8, such as an LCD flat panel. Thedisplay member 8 is held by the open/close operation portion 7 so as to keep the most suitable angle to a passenger. The opening in thedisplay apparatus body 4 is covered with acover 9 to prevent dirt and dust from entering during the use of thedisplay section 6. - The
display apparatus body 4 is fixed to the inside of aceiling portion 3 at the lower portion of thebaggage rack 5 by a fixture device that will be described below. -
FIG. 15 is a sectional view showing thebaggage rack 5 and theceiling portion 3 below the lower portion thereof perpendicular to the direction from the rear to the nose of the aircraft (hereafter referred to as “nose direction”). InFIG. 15 , the nose direction is a direction which is perpendicular to the face of the paper. Two rail installation stands 12 and 13 being parallel in the nose direction are fixed on theceiling face 3A of theceiling portion 3. Arail 14 is fixed to the lower face of therail installation stand 12, and arail 15 is fixed to the lower face of therail installation stand 13. Aleft block 16 is attached to therail 14, and aright block 17 is attached to therail 15. As shown inFIG. 19 , theleft end portion 4A of thedisplay apparatus body 4 is supported by the rail 14 (not shown) via the twoleft blocks 16 installed with a predetermined distance therebetween in the nose direction indicated by anarrow 68. In a similar way, theright end portion 4B of thedisplay apparatus body 4 is supported by the rail 15 (not shown) via the tworight blocks 17 installed with a predetermined distance therebetween in the nose direction. In other words, thedisplay apparatus body 4 is installed on theceiling face 3A via the twoleft blocks 16 and the tworight blocks 17. The fixture device that will be described below comprises theleft blocks 16, theright blocks 17 and afixture block 25 that will be described later. - The
display apparatus body 4 is required to be installable and removable on and from therails left block 16 configured so as to be installable and removable easily. FIGS. 16(a) to (c) show steps of installing theleft block 16 on therail 14 shown partially cut away. InFIG. 16 (a), theleft block 16 is inserted into therail 14 from the opening 14A of therail 4. Next, as shown inFIG. 16 (b), abar wrench 20 having a hexagonal cross-section is inserted into the hexagonal hole in a hexagonalsocket head bolt 18 in theleft block 16, and turned about 90° in a direction indicated by an arrow 29A as shown in (c) of the same figure. As a result, anut plate 22 fixed to the tip of the hexagonalsocket head bolt 18 is turned about 90°, whereby both thetip portions 22A thereof engage thebent portions 14B of therail 14. Oneleft block 16 has two hexagonalsocket head bolts 18; hence, by turning four hexagonalsocket head bolts 18 in total for the twoleft blocks 16 about 90°, the twoleft blocks 16 are installed on therail 14. In this state, theleft blocks 16 can be moved along therail 14. - As shown in FIGS. 17(a) and (b), the
fixture block 25 to be connected to theleft block 16 is provided on theleft end portion 4A of thedisplay apparatus body 4.FIG. 17 (a) is a perspective view showing a state before thefixture block 25 is connected to anattachment window 24 formed in theleft block 16. Thefixture block 25 has an arm 28 rotatably supported by ashaft 27 on abase plate 26. The arm 28 is thinned like the shape of a comb to reduce its weight. Aprojection plate 29 is provided at the end of the arm 28. Thebase plate 26 is fixed to theleft end portion 4A of thedisplay apparatus body 4 by three sets of bolts andnuts 30. The fixture blocks 25, two in number, as many as theleft blocks 16, are fixed to theleft end portion 4A.FIG. 17 (b) shows a state wherein theprojection plate 29 is inserted into theattachment window 24 of theleft block 16 as will be described later in detail. - Next, description is made as to the
right blocks 17 for supporting theright end portion 4B of thedisplay apparatus body 4 shown inFIG. 15 . As shown inFIG. 19 , the tworight blocks 17 are fixed in advance with the predetermined distance therebetween on theright end portion 4B of thedisplay apparatus body 4. - FIGS. 18(a) to (c) show steps of attaching the
right block 17 of thedisplay apparatus body 4 to theright rail 15. Before these steps, at least two workers lift thedisplay apparatus body 4, and insert theprojection plate 29 of the arm 28 of thefixture block 25 into theinstallation window 24 as shown inFIG. 17 (a). While one of the workers holds thedisplay apparatus body 4 so that theprojection plate 29 does not come out from theinstallation window 24, the other worker connects the connector (not shown) of a connection cable, which supplies electrical power and signals to thedisplay apparatus body 4, to thedisplay apparatus body 4 by using both hands. Subsequently, theright block 17 fixed to theright end portion 4B of thedisplay apparatus body 4 is inserted into the inside of therail 15 from the opening 15A of therail 15 as shown inFIG. 18 (a). At the time of the insertion, atriangular guide plate 33 of theright block 17 facilitates the insertion of theright block 17 into the opening 15A. The distance between the left andright rails projection plate 29 of the arm 28 shown inFIG. 18 (a) moves in and out from theinsertion window 24 depending on the variation, whereby the installation of theright block 17 is done without causing problems in spite of some variations. - Next, as shown in
FIG. 18 (b), a hexagonalsocket head bolt 18 is turned by about 90° by using thewrench 20 in the direction indicated by anarrow 20A as shown in (c) of the same figure. As a result, anut plate 22 fixed to the tip of the hexagonalsocket head bolt 18 is turned about 90°, whereby both thetip portions 22A thereof engage thebent portions 15B of therail 15. Twonut plates 22 are provided for oneright block 17; hence, by turning four hexagonalsocket head bolts 18 in total for the tworight blocks 17 about 90°, the tworight blocks 17 are attached to therail 15. By turning the fourbolts 18 further by a number of turns, thebent portions 15B are held between thetip portions 22A of thenut plates 22 and theright blocks 17, whereby thedisplay apparatus body 4 is firmly fixed to therail 15. - The
right block 17 shown inFIG. 18 will be described further in detail. In the following explanations, theright block 17 is referred to as afixture device 110. -
FIG. 20 is an external view of aconventional fixture device 110. Thefixture devices 110 are installed on thedisplay apparatus body 4 as shown inFIG. 21 . Next, as shown inFIG. 22 , thedisplay apparatus body 4 is fixed to therails 111 on the body side in the ceiling portion of a vehicle by turning hexagonalsocket head bolts 116 by using abar wrench 112 having a hexagonal cross-section as shown in FIGS. 25(a) to (d).FIG. 23 , an exploded view, shows the configurations of the components of theconventional fixture device 110. FIGS. 24(a), (b), (c) and (d), elevation views, and FIGS. 25(a), (b), (c) and (d), perspective view, show the sequence of the installation work. - A
nut plate 114 shown inFIG. 23 has an internal thread at its center, and installed between therib 113 x of a height X and therib 113 y of a height Y of a block 125, by usingbolts 116 each passing through awasher 117 and a highlyflexible coil spring 120. The following relationships are selected among the height X of therib 113 x, the height Y of therib 113 y and the thickness (hereafter simply referred to as the thickness of the rail 111) of therack portions rail 111 shown inFIG. 24 . Namely, the relationships are as follows: the height X≦the thickness of therail 111 and the height X<the height Y. - A
nut 121 is engaged with the tip of thebolt 116 and fixed to thebolt 116 with an adhesive. At this time, as shown inFIG. 24 (b) andFIG. 25 (b), thenut 121 is turned when thebar wrench 112, having a hexagonal cross-section, for example, is inserted into the hexagonal hole in thebolt 116 and raised and turned clockwise. As a result, thenut plate 114 passes therib 113 x (FIG. 23 ) having the height X of theblock 113 and is turned clockwise. It is fixed to thebolt 116 so as to have a height making contact with therib 113 y having the height Y of theblock 113, and thereby not turning, if the wrench is turned counterclockwise. Theblock 113 is connected to thebase 115 via a throughshaft 123, and the throughshaft 123 is fixed by asplit pin 124 inserted into the rear (right) end thereof. - In this configuration, the
wrench 112 is inserted into the hexagonal hole of thebolt 116 and raised and turned clockwise. At this time, thenut plate 114 passes over the rib having the height X of theblock 113, turns clockwise and makes contact with theinner walls 111 w (FIG. 24 andFIG. 25 ) of therail 111 having a frame shape in cross-section, and then stops. Thedisplay apparatus 4 has nut plates at eight positions in total, and all of them are set in this state. However, when thebolts 116 are loosened slightly from its completely tight position, thedisplay apparatus 4 can be moved slightly along therail 111, whereby positional adjustment is made possible. - By tightening the
bolts 116 farther as shown inFIG. 24 (c) andFIG. 25 (c), theconventional fixture device 110 is fixed to therail 111. By completely fastening the nut plates at all the eight positions in a similar way, thedisplay apparatus 4 can be fixed completely to therails 111 on the aircraft body in the ceiling portion. When removing thedisplay apparatus 4, thenut plate 114 is released by turning thebolt 116 counterclockwise, thereby releasing the friction force with the rack-shapedportions rail 111. Thenut plate 114 is turned counterclockwise depending on the turning of thebolt 116 and makes contact with the higher rib on the upper face of theblock 113, that is, therib 113 y having the height Y. In this state, when thebolt 116 is turned counterclockwise further until thenut plate 114 is raised by thebolt 116 to a position making contact with thenut 121, thenut plate 114 is moved beyond therib 113 y and becomes parallel with theopening groove 111 g (FIG. 25 ) of therail 111. In a similar way, all thenut plates 114 at all the eight positions are turned counterclockwise so that thenut plates 114 become parallel with the openinggrooves 111 g, whereby thedisplay apparatus 4 can be removed from therails 111 of the aircraft body in the ceiling portion. - Next, a latch device for fixing the
display section 6 having thedisplay member 8 to thedisplay apparatus body 4 in a retracted state will be described. Thedisplay section 6 is retracted into thedisplay apparatus body 4 during takeoff and landing. Thedisplay apparatus body 4 is provided with the latch devices to prevent thedisplay section 6 from jumping out because of shocks and the like during takeoff and landing. - A conventional latch device will be described referring to FIGS. 14(a) and (b) and FIGS. 26(a) and (b). FIGS. 26(a) and (b) show the latch operation of the conventional latch device. A
conventional latch device 230 shown inFIG. 26 (a) is disposed on thedisplay apparatus body 4 and engages thedisplay section 6 retracted into thedisplay apparatus body 4, thereby preventing unnecessary opening of thedisplay section 6.FIG. 26 (a) shows the state of the engagement, and (b) thereof shows an intermediate state in an opening operation. Furthermore, FIGS. 26(c) and (d) show intermediate states in the retraction. - The operation of the conventional latch device will be described below in accordance with an operation sequence shown in FIGS. 26(a) to (d).
FIG. 26 (a) shows a state wherein thedisplay section 6 is retracted into thedisplay apparatus body 4, and theengagement protrusion 236 of therotary shaft 234 of thelatch device 230 engages the recessedsection 260 formed at the bottom face of thedisplay section 6. Therotary shaft 234 is combined with arotary plate 232 so as to be rotatable about ashaft 235. Therotary shaft 234 is held by anelastic plate spring 237 that is bent slightly with respect to therotary plate 232. When theengagement protrusion 236 of therotary shaft 234 engages the recessedsection 260 of thedisplay section 6, aslide shaft 233 is inserted into a hole formed on the side face of the rotary plate. As a result, therotary plate 232 is prevented from rotating, and the engagement state of theengagement protrusion 236 and the recessedsection 260 is maintained. As a result, thedisplay section 6 is prevented from jumping out from thedisplay apparatus body 4 because of shocks and the like. -
FIG. 26 (b) shows a state wherein the opening operation is performed, that is, thedisplay section 6 is rotated with respect to thedisplay apparatus body 4 and opened. The open/close operation portion 7 (FIG. 14 ) controls a direct current applied to aplunger 238 by an opening command from a microcomputer provided outside the apparatus so that the opening operation is performed, that is, thedisplay section 6 is rotated and opened. When the direct current flows through theplunger 238, theslide shaft 233 disengages the hole in therotary plate 232. As a result, therotary shaft 234 and therotary plate 232 become integrally rotatable about theshaft 235. Hence, therotary shaft 234 is rotated by the opening operation of thedisplay section 6, and theengagement projection 236 disengages the recessedsection 260. - When the
display section 6 no longer contacts theengagement protrusion 236, therotary shaft 234 and therotary plate 232 are pressed by aspring 231 and return to a position shown inFIG. 26 (a). At this time, no direct current flows through theplunger 238, and theslide shaft 233 is moved to its original position by a spring that is not shown. Therefore, theslide shaft 233 is inserted into the hole formed on the side face of the returnedrotary plate 232 to obtain engagement of thedisplay section 6 with theengagement protrusion 236 again. When theslide shaft 233 is inserted into the hole of therotary plate 232 as described above, theengagement protrusion 236 of therotary shaft 234 is held by theplate spring 237 so as to be rotatable about 40 degrees counterclockwise. - As described above, in the retraction state of the
display section 6, theslide shaft 233 is inserted into the hole in therotary plate 232. For this reason, theengagement protrusion 236 of therotary shaft 234 does not rotate clockwise inFIG. 26 (a). Incidentally, in this retraction state, theengagement protrusion 236 is rotatable counterclockwise inFIG. 26 (a), but does not rotate further since thedisplay apparatus body 4 is disposed above thedisplay section 6. - FIGS. 26(c) and (d) show the state of retracting the
display section 6. At this time, theengagement protrusion 236 of therotary shaft 234 makes contact with thedisplay section 6 and rotates counterclockwise. Then, when theengagement protrusion 236 engages the recessedsection 260 of thedisplay section 6, theengagement protrusion 236 is returned to its original position by theplate spring 237, and thedisplay position 6 is securely retracted and held in thedisplay apparatus body 4. - The conventional fixture device has the following problems. When installing the
display apparatus body 4 on the left andright rails - The present invention is intended to provide a fixture device for a display apparatus body, capable of being installed by one worker.
- Furthermore, when an attempt is made to place the
nut plate 114 on the rack-shapedportions wrench 112 into the hole in thebolt 116 and by raising and turning the wrench clockwise in this kind of conventional fixture device, if thenut plate 114 is not sufficiently raised, thenut plate 114 will not clear therib 113 x, having the height X, of theblock 113. When the bolts are tightened in this state wherein the nut plate is present between therib 113 x and therib 113 y of theblock 113, having the height X and the height Y, respectively, as shown inFIG. 24 (d) (when the bolts are tightened at improper positions), both ends of thenut plate 114 are not placed properly on the rack-shapedportions rail 111. Hence, even when tightened, thenut plate 114 is only engaged with the upper face of theblock 113 as shown at the upper right inFIG. 25 (d) andFIG. 24 (d). If both thenut plates 114 are in this state, thefixture device 110 disengages from therail 111. However, at this time, thebolts 116 are completely tightened and secured, just as in the case shown inFIG. 24 (c) wherein the bolts are tightened at proper positions. - Although one fixture device has two
nut plates 114, even if both of thebolts 116 are tightened firmly, this state is not reliable. This is because it is impossible to determine whether both of thenut plates 114 are installed at their proper positions because the state of the installation is unable to be seen from the outside. If all of thenut plates 114 are not placed on the rack-shapedpositions - The present invention intends to solve the above-mentioned problem by detecting a wrong installation in the case that the nut plates are tightened at the improper positions.
- Furthermore, in the conventional latch device, the
rotary shaft 234 is rotated so that theengagement protrusion 236 engages the recessedsection 260 in thedisplay section 6. Therefore, it is required that the size of the recessedsection 260 in thedisplay section 6 is made larger than the shape of theengagement protrusion 236 so as to give a clearance therebetween. As a result, a problem of the conventional latch device is that the retracteddisplay section 6 rattles depending on the clearance when it receives shocks and the like. Furthermore, another problem of the apparatus is that, since the drive shaft of theplunger 238 is linearly connected to theslide shaft 233 in the drive direction thereof, the apparatus is relatively large. Still further, the conventional latch device comprises many components having complicated shapes, which increase the cost of production and cause the problem of raising the cost of the apparatus. - The present invention is intended to provide a latch device comprising a reduced number of components having simple shapes, wherein the latch devices provided for a display section and a display apparatus body are fitted securely without wobble in the retracted state, and the display apparatus provided with the latch devices can be made compact.
- A fixture device of an apparatus in accordance with another aspect of the present invention for fixing an apparatus, such as a display apparatus to an external face of the ceiling portion or the like of a vehicle, comprises:
- at least one pair of rails, installed near an opening for installing an apparatus in a space of the above-mentioned ceiling portion, for carrying a load applied when an apparatus is installed, each rail provided with a frame-shaped cross-sectional structure having an internal space therein, and also having a narrow opening groove being open outward, i.e., downward, from the internal space and a pair of narrow rack-shaped portions formed on both sides of the opening groove,
- a block of the fixture device, having loose-fitting holes in a vertical direction and having an upper width suited so that the upper portion thereof is inserted into the opening groove,
- bolts loosely fitted into the loose-fitting holes of the block of the fixture device,
- a loose-fitting cylinder body having a predetermined length, loosely fitted between the external circumference of the bolt and the loose-fitting hole,
- nut plates of narrow shape each having a nut hole screwed with the bolt and having a length larger than the width of the opening groove and having a width smaller than the width thereof, wherein when the bolt is turned substantially 90° around the axis thereof while the bolt is pushed upward after the nut plate is pushed upward and inserted into the space in the rail through the opening groove, both end portions thereof extend across the opening groove, are placed on the pair of rack-shaped portions and pulled downward by a tightening action owing to the rotation of the bolt screwed into the nut hole, thereby firmly making contact with the rack-shaped portions of the rail and fixed thereto, and
- a fixing member for engaging the apparatus with the block of the fixture device.
- An apparatus installation method in accordance with the present invention comprises:
- a step of loosely fitting a bolt, over which a cylinder having a predetermined length is loosely fitted, into a hole in a block of a fixture device,
- a step of inserting a narrow nut plate having a nut hole screwed to the upper portion of the bolt, having a width smaller than the width of an opening groove in the lower face of a rail disposed in the space of the ceiling and having a length larger than the width into a space in the rail from the opening groove in the lower face of the rail while the narrow direction thereof is aligned with the narrow direction of the opening groove,
- a step of engaging both end portions of the nut plate inserted into the space in the rail with the rail by pushing and turning the bolt so that the nut plate is turned substantially 90° around the axis of the nut hole and the end portions are placed on the rack-shaped portions on both sides of the opening groove of the rail,
- a step of pressing and fixing the nut plate to the rack-shaped portions of the rail by tightening the bolt while maintaining the engagement so that the nut bolt is pulled by the bolt in a state wherein a clearance as large as the thickness of the rack-shaped portions is maintained between the nut plate and the upper face of the block, and
- a step of fixing the apparatus to the fixture device.
-
FIG. 1 (a) is a perspective view showing a state before the connection of aleft block 36 and afixture block 45 in accordance with a first embodiment of the present invention; -
FIG. 1 (b) is a perspective view showing a state after the connection of theleft block 36 and thefixture block 45; -
FIG. 2 is an exploded perspective view showing the fixture block in accordance with the first embodiment of the present invention; -
FIG. 3 (a) is a sectional view taken on line III-III ofFIG. 1 , showing the connection state of theleft block 36 and thefixture block 45 in accordance with the first embodiment of the present invention and also showing a state wherein the cut-and-raisedportion 52A of arelease lever 52 falls in alatch hole 44A; -
FIG. 3 (b) is a view showing a state wherein the cut-and-raisedportion 52A comes out from thelatch hole 44A; -
FIG. 4 is a side sectional view showing a state wherein a display apparatus body hangs down from the left blocks; -
FIG. 5 is a perspective view showing a fixture device in accordance with a second embodiment of the present invention; -
FIG. 6 is an exploded perspective view showing the fixture device in accordance with the second embodiment of the present invention; - FIGS. 7(a), (b), (c) and (d) are sectional views showing a state wherein a display apparatus is fixed to a rail by the fixture device in accordance with the above-mentioned second embodiment;
- FIGS. 8(a), (b), (c) and (d) are perspective views showing the installation steps of the fixture device in accordance with the above-mentioned second embodiment;
- FIGS. 9(a), (b), (c), (d) and (e) are partially sectional views showing the display apparatus body and the display section provided with a latch device in accordance with a third embodiment of the present invention;
-
FIG. 10 (a) is a plan view showing the latch device in accordance with the third embodiment;FIG. 10 (b) is a right side view;FIG. 10 (c) is a front view;FIG. 10 (d) is a left side view; andFIG. 10 (e) is a rear view; -
FIG. 11 (a) is a sectional view showing the latch device in accordance with the third embodiment, showing the retracted state of the display section; andFIG. 11 (b) shows the extended state of the display section; -
FIG. 12 (a) is an exploded perspective view showing the upper latch, lower latch, balls and latch springs of the latch device in accordance with the third embodiment;FIG. 12 (b) is a sectional view; andFIG. 12 (c) is a plan view of opposed faces of the upper latch and the lower latch; -
FIG. 13 (a) is a left side view showing a state wherein the latch device in accordance with the third embodiment is installed on the display apparatus;FIG. 13 (b) is a plan view;FIG. 13 (c) is a right side view of the opened display section; andFIG. 13 (d) is a front view of the opened display section; -
FIG. 14 (a) is a perspective view showing a state wherein thedisplay section 6 of thedisplay apparatus body 4 in accordance with the conventional example and the present invention in the ceiling portion of the cabin of a passenger aircraft is not used; andFIG. 14 (b) is a perspective view showing a state wherein thedisplay section 6 is used; -
FIG. 15 is a cross sectional view showing the ceiling portion of the cabin of the passenger aircraft provided with the display apparatus body in accordance with the conventional example and the present invention, viewed from the rear to the nose of the aircraft; - FIGS. 16(a), (b) and (c) are perspective views showing steps of installing the conventional
left block 16 on theleft rail 14; -
FIG. 17 (a) is a perspective view showing a state before the conventionalleft block 16 is connected to thefixture block 25; andFIG. 17 (b) is a perspective view showing a state after the connection; - FIGS. 18(a), (b), and (c) are perspective views showing steps of installing the conventional
right block 17 on theright rail 15; -
FIG. 19 is a bottom view showing thedisplay apparatus body 4 in the ceiling portion of the cabin of the passenger aircraft, viewed from below; -
FIG. 20 is a perspective view showing the conventional fixture device; - FIGS. 21 (a), (b) and (c) are a bottom view, a front view and a side view, respectively, showing the display apparatus installed in the ceiling of the cabin;
-
FIG. 22 is a cross sectional view showing the ceiling portion of the cabin; -
FIG. 23 is an exploded perspective view showing the components of the conventional fixture device; - FIGS. 24(a), (b), (c) and (d) are sectional views showing the operation steps for the conventional fixture device;
- FIGS. 25(a), (b), (c) and (d) are perspective views showing the operation sequence at the time when the conventional fixture device is installed; and
- FIGS. 26(a), (b) (c) and (d) are partial side views showing the operation of the conventional latch device.
- Preferred embodiments of the present invention will be described referring to
FIG. 1 toFIG. 13 . - A fixture device in accordance with a first embodiment of the present invention will be described referring to
FIG. 1 toFIG. 4 . The fixture device of the present invention is an improvement of the conventional fixture device comprising theleft block 16 and thefixture block 25 for supporting theleft end portion 4A of thedisplay apparatus body 4 inFIG. 17 of the conventional technology. Since the configurations other than the left block and the fixture block are the same as those in the description of the above-mentioned conventional technology, the components are designated by the same reference numerals and described simply. -
FIG. 1 (a) is a perspective view showing the fixture device in accordance with the present invention, and shows a state before theprojection plate 49 of afixture block 45 is inserted into theinstallation window 44 of aleft block 36 so as to couple both.FIG. 1 (b) shows a state after both have been coupled by the insertion. Theleft block 36 is attached to arail 14 that is not shown, in accordance with steps similar to those for the conventional technology shown inFIG. 16 . Thebase plate 46 of thefixture block 45 is fixed to thedisplay apparatus body 4 with three sets of the bolts and nuts 30. -
FIG. 2 is an exploded perspective view of thefixture block 45. In this figure, anarm 48 thinned like the shape of a comb has theprojection plate 49 to be inserted into theinstallation window 44 of theleft block 36. As shown in the sectional view ofFIG. 3 (the cross-section III-III ofFIG. 1 ), theprojection plate 49 has ahollow portion 57 having an opening in its lower face. Aguide hole 58 communicating with the above-mentionedhollow portion 57 of theprojection plate 49 is provided at the center portion of thearm 48 shown inFIG. 2 . An L-shapedrelease lever 52 is inserted into theguide hole 58. Aplate spring 53 for applying a rotation force to therelease lever 52 in a direction indicated by anarrow 60 and aholder 54 are placed upon thelever section 52B of therelease lever 52, and fixed with twomale screws 55 to thefemale threads 56 in thearm 48. Hence, therelease lever 52 is biased in the direction indicated by thearrow 60 inFIG. 3 (a). A cut-and-raisedportion 52A is provided at the tip of therelease lever 52. The cut-and-raisedportion 52A is a tongue-shaped section projecting downward from the lower face of therelease lever 52 as shown inFIG. 3 (a). When theprojection plate 49 is inserted into theinstallation window 44 of theleft block 36 shown inFIG. 1 (a), the cut-and-raisedportion 52A falls into alatch hole 44A in theinstallation window 44 as shown inFIG. 3 (a), thereby preventing theprojection plate 49 from escaping from theinstallation window 44. - When removing the
projection plate 49 from theinstallation window 44, thebent portion 52B of therelease lever 52 is pressed in a direction indicated by anarrow 66 as shown inFIG. 3 (b). As a result, therelease lever 52 rotates in a direction opposite to the direction of thearrow 60 shown inFIG. 3 , whereby the cut-and-raisedportion 52A is removed from thelatch hole 44A. When thearm 48 is pulled to the right in the figure in this state, theprojection plate 49 comes out from theinstallation window 44. Since the width of thelatch hole 44A is larger than the width of the cut-and-raisedportion 52A, theprojection plate 49 can move slightly side-to-side with respect to theleft block 36 in the state shown inFIG. 3 (a). - In
FIG. 2 , by passing ashaft 47 throughholes base plate 46 and ahole 62 in thearm 48, thearm 48 can be rotatably mounted on thebase plate 46. Asplit pin 62 is inserted into afastening hole 59 formed at the right end of theshaft 47, thereby preventing theshaft 47 from escaping. - Description is made as to steps of installing the
display apparatus body 4 provided with the fixture devices in accordance with this embodiment on the left andright rails FIG. 15 by one worker referring toFIG. 1 ,FIG. 3 ,FIG. 4 ,FIG. 16 andFIG. 18 . The worker attaches the left blocks 36 to therail 14 in accordance with steps similar to those for the conventional left blocks 16 shown inFIG. 16 . The fixture blocks 45 in accordance with this embodiment are attached beforehand to theleft end portion 4A of thedisplay apparatus body 4 by using the bolts and nuts 30. Blocks similar to the conventional right blocks 17 shown inFIG. 18 are attached beforehand to theright end portion 4B of thedisplay apparatus body 4. The worker lifts thedisplay apparatus body 4 configured as described above and inserts theprojection plates 49 of the fixture blocks 45 into theinstallation windows 44 of the left blocks 36. As shown inFIG. 3 (a), the cut-and-raisedportion 52A of therelease lever 52 falls into thelatch hole 44A of theinstallation window 44 as shown inFIG. 3 (a), thereby preventing theprojection plate 49 from being removed from theinstallation window 44. When the worker releases his hands from thedisplay apparatus body 4 in this state, thedisplay apparatus body 4 hangs from the left blocks 36, as shown inFIG. 4 . The worker can connect connectors of connection cables, which supply electrical power and signals to thedisplay apparatus body 4, with both of his free hands. - After completion of connection of the connectors, the worker lifts the
right end portion 4B of thedisplay apparatus body 4, inserts the right blocks 17 into theopenings 15A of therail 15 as shown inFIG. 18 , and mounts the right blocks 17 on therail 15 by using thewrench 20 in a method similar to the conventional method. Since thehole 44A is made wider than the cut-and-raisedportion 52A, theprojection plate 49 can move slightly with respect to theleft block 36, whereby theright block 17 can be inserted easily into theopening 15A of therail 15 even when a slight positional deviation is present between therail 15 and theright block 17. By turning the hexagonalsocket head bolts 18 about 90° by using thewrench 20, theright block 17 can be mounted on therail 15. - In this state, the left blocks 16 and the right blocks 17 are supported by the
rails tip portions 22A of thenut plates 22. Hence, thedisplay apparatus body 4 can be moved and positioned at a desired position by sliding the left blocks 36 and the right blocks 17 inside therails display apparatus body 4, the four hexagonalsocket head bolts 18 for the twoleft blocks 36 and the four hexagonalsocket head bolts 18 for the tworight blocks 17 are turned by a number of turns in the direction indicated by thearrow 20A shown inFIG. 16 andFIG. 18 . As a result, thebent portions 14B of therail 14 are held between thetip portions 22A of thenut plates 22 and the upper face of theleft block 36, thereby fixing theleft block 36 to therail 14. In a similar way, thebent portions 15B of therail 15 are held between thetip portions 22A of thenut plates 22 and the upper face of theright block 17, thereby fixing theright block 17 to therail 15. - A second embodiment of the present invention will be described referring to
FIG. 5 toFIG. 8 ,FIG. 14 ,FIG. 20 andFIG. 22 . The present embodiment relates to an improvement in a fixture device for fixing a display apparatus to a ceiling portion. - In the fixture device of the present embodiment, the nut plates of the fixture device are pushed upward, rotated into contact with the rail of the ceiling portion of a vehicle, and then tightened using bolts. Hence, the nut plates are fixed to the rail, thereby fixing the display apparatus to the ceiling portion. In a state before the bolts are tightened completely, the display apparatus can be moved to a desired position along the rail.
- In the device of the present embodiment, when the bolt is tightened at an improper position such that the nut plate of the above-mentioned fixture device is not placed properly on the rack-shaped section of the rail at the ceiling portion of the vehicle, a wobble (play) occurs in the axial direction of the bolt. The fact that the device is improperly installed is identifiable by this wobble. Hence, the heavy display apparatus can be fixed securely on the ceiling portion of the vehicle, thereby enhancing safety and reliability.
- Hereafter, the present embodiment will be described referring to
FIG. 5 toFIG. 8 .FIG. 14 andFIG. 22 are also used in this explanation.FIG. 14 shows the ceiling portion of a passenger aircraft and thedisplay apparatus body 4 disposed therein.FIG. 21 is a view showing the fixture positions of the fixture devices on the display apparatus.FIG. 22 shows a state wherein the display apparatus shown inFIG. 21 is fixed to the ceiling portion.FIG. 5 is a perspective view showing the fixture device in accordance with this embodiment of the present invention.FIG. 6 is an exploded perspective view showing the components configuration of the fixture device shown inFIG. 5 . FIGS. 7(a) to (d) are views showing the sequence of the installation operations of the device in this embodiment. FIGS. 8(a) to (d) are perspective views showing the sequence of the operations in FIGS. 7(a) to (d). - Although the
block 113 and the like of the fixture device in accordance with this embodiment appear similar to those of the conventional fixture device in their external appearances, their main structures will be described below. Thenut plate 114 has a threadedhole 241 having an internal thread in the center thereof. The tip portion of the hexagonalsocket head bolt 116 passing through awasher 117, aspring washer 118 having a predetermined compression deformation amount and placed thereon, asleeve 119 having a predetermined length and placed thereon, and theflexible coil spring 120 outside thesleeve 119 are screwed into the threadedhole 241 in thenut plate 114. Above thenut plate 114, thenut 121 is screwed and bonded to the tip of thebolt 116. Thenut plate 114 is disposed between the lower rib (a small protrusion) 113 x of a height X and thehigher rib 113 y of a height Y on the upper face of theblock 113. The following relationships are selected among the height X of therib 113 x, the height Y of therib 113 y and the thickness D (FIG. 7 ) (hereafter simply referred to as the thickness of the rail 111) of therack portions rail 111. In other words, the relationships are as follows: [the height X]≦[the thickness D of the rail 111] and [the height X]<[the height Y]. - At this time, as shown in FIGS. 8(b) and (c), the
nut 121 is turned when thebar wrench 112 having a hexagonal cross-section is inserted into the hexagonal hole in thebolt 116 and raised and turned clockwise, and thenut plate 114 passes therib 113 x (FIG. 6 ), having the height X, of theblock 113 and turns clockwise. However, thenut plate 114 is fixed to thebolt 116 so as to have a height making contact with therib 113 y, having the height Y, of theblock 113 and thereby not turning when thewrench 112 is turned counterclockwise. Theblock 113 is connected to thebase 115 by a throughshaft 123, and the throughshaft 123 is fixed by thesplit pin 124 inserted into the rear (right) end thereof. - In this configuration, the
wrench 112 is inserted into the hole in thebolt 116 and turned clockwise about 90° (substantially 90°) while thewrench 112 is raised. At this time, thenut plate 114 passes over therib 113 x having the height X of theblock 113 and turns clockwise. Both end portions thereof make contact with theinner walls 111 w of the frame-shapedrail 111 in cross-section (FIG. 7 andFIG. 8 ) and then stop. The eight nut plates in thedisplay apparatus 4 are set in this state. However, when the bolts are loosened slightly instead of being tightened completely, thedisplay apparatus 4 can be moved slightly along therail 111, whereby positional adjustment is made possible. - By tightening the
bolts 116 completely as shown inFIG. 7 (c) andFIG. 8 (c), thisfixture device 110 is fixed to therail 111. By completely fastening thenut plates 114 at all the eight positions in a similar way, thedisplay apparatus 4 can be fixed completely to therails 111 on the aircraft body in the ceiling portion. When removing thedisplay apparatus 4, thenut plate 114 is released by turning thebolt 116 counterclockwise, thereby releasing the friction force with the rack-shapedportions rail 111. - In
FIG. 6 , thenut plate 114 is turned counterclockwise as thebolt 116 is turned and makes contact with the higher rib on the upper face of theblock 113, that is, therib 113 y having the height Y. In this state, thebolt 116 is turned counterclockwise until thenut plate 114 is raised by thebolt 116 to a position making contact with thenut 121. As a result, as shown inFIG. 7 (d), thenut plate 114 is moved beyond therib 113 y and becomes parallel with theopening groove 111 g of therail 111. By a similar operation, all the eightnut plates 114 are turned counterclockwise. Hence, all the eightnut plates 114 become parallel with the openinggrooves 111 g, whereby thedisplay apparatus 4 can be removed from therails 111 on the aircraft body in the ceiling portion. - In
FIG. 7 (d) andFIG. 8 (d), when thewrench 112 is turned clockwise while pushing thebolt 116 upward, if thenut plate 114 is insufficiently raised, thenut plate 114 will not pass over therib 113 x, having the height X, of theblock 113. Therefore, thenut plate 114 does not rotate and does not become perpendicular to theopening groove 111 g. (This also occurs when thenut plate 114 is rotated from a position other than its original position.) If fastening is carried out when thenut plate 114 is present between therib 113 x and therib 113 y of theblock 113, having the height X and the height Y, respectively, or, in other words, when thenut plate 114 is parallel with theopening groove 111 g (if the fastening is carried out at an improper position) as described above, thenut plate 114 is only fastened to the upper face of theblock 113 as shown inFIG. 7 (d) and is not fastened to the rack-shapedportions rail 111. - In the present embodiment, the length of the firmly fastened integration, comprising the head (the flange-shaped portion at the lower end in
FIG. 6 ) of the tightenedbolt 116, thewasher 117, thespring washer 118, thesleeve 119, and thenut plate 114, is longer than the depth of a loose-fitting hole 113 u for inserting the bolt of theblock 113. - In
FIG. 7 (d), the diameter of the loose-fitting hole 113 u in which the bolt and the coil spring are inserted is larger than the diameter of thesleeve 119 except proximate the upper face of theblock 113, whereby thesleeve 119 can move freely inside the loose-fitting hole 113 u. The diameter of the spring washer is selected so that thespring washer 118 can be inserted in the lower portion of the loose-fitting hole 113 u. InFIG. 7 (d), since thenut plate 114 does not project up to the upper faces of the rack-shapedportions rail 111, the lower face of thenut plate 114 does not rise from the upper face of theblock 113 to a level to contact with the rack-shapedportions - Hence, in this case, a clearance exists between the upper face of the
nut plate 114 and the lower portion of thenut 121. Furthermore, a clearance Z exists between the upper face of thewasher 117 and the lower end of the loose-fitting hole 113 u as shown inFIG. 7 (d). Therefore, when thewrench 112 is pushed up, thebolt 116 and thewasher 117 are lifted while compressing thecoil spring 120. However, when the pushing force of thewrench 112 is released, thebolt 116 is pushed back downward by the recovery force of thecoil spring 120. - The relationship between the above-mentioned clearance Z and the dimension of each part and the actions thereof are described below.
- (a) A condition wherein the
bolt 116 is tightened sufficiently and properly:
[The thicknesses of the rack-shapedportions sleeve 119+the thickness of theflat washer 117+the compressed thickness of thespring washer 118 reduced from that in the free state thereof] Furthermore, as shown in FIG. 7(d), - (b) When constant play (clearance Z) occurs after improper and/or insufficient tightening, the dimension of the clearance Z is:
[The entire length of thesleeve 119+the thickness of theflat washer 117+the thickness of the compressed and flattened spring washer 118]−[the thickness of the block 113]=the clearance Z - The above-mentioned relationships (a) and (b) are arranged as follows:
[The thickness D of the rack-shapedportions - Since the clearance Z is formed by the above-mentioned configuration, when the
wrench 112 is moved up and down by increasing or decreasing the upward pushing force, the flange face of the head of thebolt 116 strikes thestep portion 113 d of theblock 113, thereby causing rattling that can be heard and vibrations that can be felt. From this, it is understood that both end portions of thenut plate 114 are improperly coupled to the rack-shapedportions rail 111. In other words, the rattle heard and the vibrations felt, which occur when thewasher 117 makes contact with thelower step portion 113 d of the loose-fitting hole 113 u of theblock 114 because of the up-down movement of thebolt 116 from the deformations of thespring washer 118 and thecoil spring 120, are used as a means for indicating improper installation. - The
spring washer 118 is used in the above-mentioned configuration to reliably turn thenut plate 114 substantially 90° by rotating thebolt 116 while pushing it up. As described above and as shown inFIG. 7 (d), in the present invention, play, that is, the clearance Z, is formed between the head (in reality, thewasher 117 disposed just above it) of thebolt 116 and the lower face (in reality, thelower step portion 113 d of the loose-fitting hole 113 u) of theblock 113. To form this clearance Z, a loose-fitting cylinder having a predetermined length, that is, thesleeve 119, is loosely fitted between thecoil spring 120 and thebolt 116. In this case, as shown inFIG. 7 (b), in a state wherein thebolt 116 is gently pushed up by using thewrench 112 or the like, the upper end of thesleeve 119 does not yet reach the lower face of thenut plate 114. In other words, when the bolt is just pushed up with a gentle force, thesleeve 119 does not contact thenut plate 114, as shown inFIG. 7 (b). If thesleeve 119 does not contact thenut plate 114 and thebolt 116 is pushed up and rotated, thenut plate 114 slides with respect to thebolt 116 and is not rotated accurately (thenut plate 114 remains even if thebolt 116 is rotated). However, when thespring washer 118, having a predetermined compressive elastic force, is provided and thebolt 116 is pushed up by the predetermined compressive force to compress thespring washer 118, as in the present invention, thenut plate 114 and thesleeve 119 are kept in contact by virtue of the upward pushing force. Consequently, friction increases between thenut plate 114 and thesleeve 119 and between thenut plate 114 and thebolt 118 connected thereto. For this reason, when thebolt 116 is pushed up and rotated, thenut plate 114 is turned securely without slipping. - In the above description, an example configured by using the
spring washer 118 is described. However, even when a wire spring is used instead of this, this embodiment is realizable. Furthermore, even when only a wire spring is used instead of the configuration of the spring washer and the sleeve, this embodiment is realizable. - A latch device in accordance with a third embodiment of the present invention will be described referring to
FIG. 9 toFIG. 13 . - The latch device described in this embodiment is disposed in the ceiling portion of a passenger aircraft and is used for a display apparatus for displaying video images. Therefore, since the latch device in accordance with this embodiment is used in a situation similar to that of the above-mentioned conventional display apparatus shown in
FIG. 14 , the latch device in accordance with this embodiment will be described referring to the reference numerals for the display apparatus used inFIG. 14 . - As shown in
FIG. 14 , thedisplay apparatus 3 is arranged in the lower portion of thebaggage rack 5 in theceiling portion 2 of the passenger aircraft, and comprises thedisplay apparatus body 4, thedisplay section 6 is configured to be retractable into thedisplay apparatus body 4, and the open/close operation section 7 is used for opening/closing thisdisplay section 6. Thedisplay section 6 is provided with thedisplay member 8, such as an LCD (liquid crystal display), serving as a flat panel display means. Thedisplay member 8 is supported at the most suitable angle. - FIGS. 9(a) to (e) are sectional views illustrating the engagement operation between the
display apparatus body 4 provided with alatch device 250 in accordance with this embodiment and thedisplay section 6 retracted into thedisplay apparatus body 4. Thelatch device 250 in accordance with this embodiment is disposed on thedisplay apparatus body 4, and is configured so that alatch section 300 having anupper latch 210 and alower latch 211 is fitted into a recessedhole 214 formed on a side face of theretractable display section 6. As shown inFIG. 9 (a), inside thedisplay apparatus body 4, aplunger 215 is disposed above thedisplay member 8 of the retracteddisplay section 6. Anactuator 216 serving as the drive shaft of thisplunger 215 is driven in the leftward and rightward directions of the figure. When theplunger 215 is energized, theactuator 216 is moved rightward. As thisactuator 216 is moved, aslide shaft 219 is configured to move up and down via aplate spring 218.FIG. 9 (a) shows a state wherein theslide shaft 219 is pushed by theplate spring 218 and is moved downward.FIG. 9 (b) shows a state wherein theplate spring 218 is no longer pushing theslide shaft 219 and theslide shaft 219 is pushed up by acoil spring 220. Thecoil spring 220 is provided between the rim 21 of theslide shaft 219 and the frame of thedisplay apparatus body 4 and biases theslide shaft 219 upwardly at all times. -
FIG. 10 is a view showing thelatch device 250 provided for thedisplay apparatus body 4, wherein (a) is a plan view, (b) is a left view, (c) is a front view, (d) is a right view, and (e) is a rear view.FIG. 11 is a side view of the internal mechanism of the latch device shown inFIG. 10 , wherein (a) shows a state wherein theactuator 216 is moved leftward and (b) shows a state wherein theplunger 215 is energized and theactuator 216 is moved rightward. - As shown in
FIG. 10 andFIG. 11 , one end of theplate spring 218 is fixed to the frame of thedisplay apparatus body 4, and the other end slidably engages anarm 217 attached nearly perpendicular to the tip of theactuator 216. Therefore, with the leftward and rightward movements of theactuator 216, theplate spring 218 presses the upper end of theslide shaft 219 and drives it upwardly and downwardly. InFIG. 10 , open/close signals are sent from the open/close operation portion 7 to theplunger 215 via asignal cable 222. Furthermore, ahook 223 provided at the lower end of thelatch device 250 engages the frame of thedisplay apparatus body 4 to facilitate positioning thereof. -
FIG. 12 (a) is an exploded perspective view of thelatch section 300. Thelatch section 300 comprises theupper latch 210, thelower latch 211, fourballs 212, and two latch springs 213.FIG. 12 (b) is a sectional view showing thelatch section 300, and (c) is a plan view showing the shapes of the opposed faces of theupper latch 210 and thelower latch 211.FIG. 12 (b) is a sectional view taken along the line B-B of the plan view in (c). - As shown in
FIG. 12 (a), in thelatch section 300, theupper latch 210 is attached to thelower latch 211 with the balls (steel balls) 212 held therebetween. Projection sections are formed on theupper latch 210 and thelower latch 211 to fit into the recessedhole 214 in thedisplay section 6. Aprotrusion 211 b is formed to protrude from a face of thelower latch 211 opposed to theupper latch 210. Thelower latch 211 and theupper latch 210 are positioned with respect to each other using theprotrusion 211 b. Furthermore, holes for holding theballs 212 are formed on the mutually opposed faces (seeFIG. 12 (c)) of the projection sections of theupper latch 210 and thelower latch 211. As shown inFIG. 12 (c), fourround holes 211 c, for fixing and holding theballs 212, are formed in thelower latch 211.Slots 210 c are formed in theupper latch 210 to hold theballs 212 so that theballs 212 are movable parallel to the projection direction (the X direction inFIG. 12 (a)) of the projection section by a predetermined distance (about 0.5 mm). Furthermore, theupper latch 210 is pressed at all times by the latch springs 213 in a direction (the Y direction inFIG. 12 (a)) opposite to the projection direction. - Since the
latch section 300 is configured as described above, when only theupper latch 210 is pressed and moved in the Y direction (FIG. 12 (a)), thelower latch 211 connected thereto via theballs 212 also moves simultaneously in the same direction. On the contrary, when only thelower latch 211 is pressed and moved in the Y direction, theupper latch 210 starts moving only after thelower latch 211 has moved by about 0.5 mm. - An
inclined face 211 d is formed on the rear side of thelatch section 300 to contact the lower end of theslide shaft 219 at all times. The lower end of theslide shaft 219 is formed to have an inclined face to make face-to-face contact with theinclined face 211 d of thelatch section 300. - Next, the operation of the
latch device 250, having thelatch section 300 configured as described above, will be described referring to FIGS. 9(a) to (e). -
FIG. 9 (a) is a state wherein thedisplay section 6 is retracted into thedisplay apparatus body 4, and theupper latch 210 and thelower latch 211 are fitted into the recessedhole 214 of thedisplay section 6. At this time, theplate spring 218 presses theslide shaft 219 downwardly by virtue of thearm 217, the tip of theslide shaft 219 presses the inclined face portion of thelower latch 211, and theupper latch 210 makes contact with the side face of theslide shaft 219. As a result, even when thelatch section 300 is pressed by thedisplay section 6, no retraction operation is performed, and thedisplay section 6 does not perform the opening operation by which thedisplay section 6 is rotated with respect to thedisplay apparatus body 4 to open thedisplay section 6. -
FIG. 9 (b) shows an initial state for performing the opening operation by which thedisplay section 6 is rotated with respect to thedisplay apparatus body 4 and is opened. When thedisplay section 6 is subjected to the opening operation, theplunger 215 is energized by an opening command from a microcomputer outside the apparatus, and theactuator 216 is moved rightwardly, as shown inFIG. 9 (b). Theplate spring 218 is pulled rightwardly by the movement of theactuator 216, thereby releasing the restriction of the movement of theslide shaft 219. Hence, theslide shaft 219 is moved upwardly by the elastic force of thecoil spring 220. As a result, the inclined face portion of theupper latch 210 makes contact with the tip of theslide shaft 219, whereby theupper latch 210 is pushed by thelatch spring 213 and moves leftwardly inFIG. 9 (b). At this time, thelower latch 211 also moves by the same distance. Hence, the projection distance of the projection section of thelatch section 300 is decreased. - The state shown by
FIG. 9 (c) is a state wherein thedisplay section 6 has turned with respect to thedisplay apparatus body 4 from the state shown inFIG. 9 (b). In this state, when thedisplay section 6 is subjected to the opening operation, theupper latch 210 and thelower latch 211 are pushed by thedisplay section 6 and moved leftward further. At this time, since theupper latch 210 makes contact with the inclined face of the tip of theslide shaft 219, theslide shaft 219 is lifted upwardly by the leftward movement of theupper latch 210. At this time, since the upper end of theslide shaft 219 makes contact with theplate spring 218 that is in a bendable state, theslide shaft 219 upwardly movable. In this state, thelower latch 211 is able to be moved leftward with respect to theupper latch 210. -
FIG. 9 (d) shows a state wherein thedisplay section 6 has turned further from the state inFIG. 9 (c) and is completely separated from thelatch section 300. At this time, no direct current flows to theplunger 215, and theactuator 216 has returned to its original position (the state shown inFIG. 9 (a)). As a result, theslide shaft 219 is pushed down by theplate spring 218, and theupper latch 210 and thelower latch 211 return to their original positions. -
FIG. 9 (e) shows a state wherein thedisplay section 6 is retracted into thedisplay apparatus body 4, and thedisplay section 6 makes contact with thelower latch 211. At this time, thelower latch 211 is pressed by thedisplay section 6 and moved leftwardly. At this time, since thelower latch 211 makes contact with the inclined face of the tip of theslide shaft 219, theslide shaft 219 is lifted upwardly and theplate spring 218 is lifted upwardly. Since the rotation force at the time when thedisplay section 6 is retracted is sufficiently larger than a load at the time when thedisplay section 6 is displaced because of shocks or the like, theupper latch 210 is also moved leftwardly. - In the above-mentioned retraction operation, the
lower latch 211 initially moves because of the contact between thedisplay section 6 and thelatch section 300. After the lower latch has moved about 0.5 mm, theslide shaft 219 is pushed upwardly, and the inclined face of the tip of theslide shaft 219 makes contact with the inclined face portion of theupper latch 210. Since theupper latch 210 makes contact with the inclined face ofslide shaft 219, as described above, when thelower latch 211 is moving, theupper latch 210 starts moving leftward via theballs 212. Theupper latch 210 and thelower latch 211, moving in this way, are returned to their original positions by the elastic force of theplate spring 218 when they are fitted into the recessedhole 214 in thedisplay section 6, whereby thedisplay section 6 is securely held in thedisplay apparatus body 4. -
FIG. 13 is a view showing a state wherein the latch device in accordance with this embodiment is built in thedisplay apparatus body 4, wherein (a) is a left side view, (b) is a plan view, (c) is a right side view showing a state wherein thedisplay section 6 is opened, and (d) is a front view showing a state wherein thedisplay section 6 is opened. - As described above, in the latch device in accordance with this embodiment, the
slide shaft 219 and theactuator 216 of theplunger 215 are disposed in the shape of an L. In this way, it is possible to prevent the apparatus from becoming larger in size because of the mounting of the latch device, and a compact apparatus is achieved. - As described above in detail in each embodiment, in accordance with the present invention, by inserting the projection plates of the fixture blocks at the left end portion of the display apparatus body into the installation windows in the left blocks attached on the rail, the fixture blocks are fixed to the left block. Therefore, the display apparatus body will not fall even when a worker releases his hands from the display apparatus body. In this way, the worker can carry out necessary cable connection work with both of his free hands. After the completion of the cable connection work, the worker lifts the right end portion of the display apparatus body and fixes the right blocks to the rail. Since these steps of work can be carried out by one worker, the cost of labor for the installation is reduced.
- In the fixture device in accordance with the present invention, when the nut plate does not pass the rib of the height X of the block but is present between the rib of the height X and the rib of the height Y (in other words, when it is in a state of being fastened at an improper position), the bolt moves up and down and rattles when pushed with a wrench or the like. Because of this, it is possible to detect that the fixture is improperly installed. Hence, the heavy display apparatus can be fixed securely to the ceiling portion of the vehicle, thereby enhancing safety and reliability thereof.
- In the latch device in the present invention, in the state wherein the display section is retracted into the display apparatus body, the display section and the display apparatus body are fitted securely, whereby rattles due to vibration, shocks, etc. are not caused.
- Furthermore, in accordance with the present invention, the latch device is configured in the shape of an L, whereby the depth of the display apparatus body provided with the latch device can be reduced.
- Still further, since the latch device in accordance with the present invention comprises reduced number of components and the shapes of components are simple in comparison with a conventional device, it is easier and less costly to produce than the conventional latch device.
Claims (6)
1. An apparatus installation method for fixing an apparatus, such as a display apparatus, to the ceiling portion or the like of a vehicle, comprising:
a step of loosely fitting a bolt, over which a cylinder having a predetermined length is loosely fitted, into a hole in a block of a fixture device,
a step of inserting a narrow nut plate having a nut hole screwed to the upper portion of the bolt, having a width smaller than the width of an opening groove on the lower face of a rail disposed in the space of the ceiling and having a length larger than that into a space in the rail from the opening groove on the lower face of the rail so that the narrow direction thereof is aligned with the narrow direction of the opening groove,
a step of connecting both end portions of the nut plate inserted into the space in the rail to the rail by pushing and turning the bolt so that the nut plate is turned substantially 90° around the axis of the nut hole and the end portions are placed on the rack-shaped portions on both sides of the opening groove in the rail,
a step of pressing and fixing the nut plate to the rack-shaped portions of the rail by tightening the bolt while maintaining said connection so that the nut plate is pulled by the bolt in a state wherein a clearance as large as the thickness of said rack-shaped portions is maintained between the nut plate and the upper face of said block, and
a step of fixing the apparatus to said fixture device.
2. An apparatus installation method in accordance with claim 1 , characterized in that
in the case that the bolt is tightened at an improper position at which the nut plate of said fixture device is not properly placed on the rack-shaped portions of said rail, the nut plate is pulled to the upper face of the block without having a clearance as large as the thickness of the rack-shaped portions between the nut plate and the upper face of said block, and a rattle (play) occurs in the axial direction at the lower portion of the bolt, and when means for indicating an improper fixing indicates an improper fixing, a step of aligning the narrow direction of the nut plate once again with the narrow direction of the opening groove and inserting it into the space in the rail and subsequent steps are repeated.
3. A method of installing an apparatus in accordance with claim 2 , characteraized in that the thickness D of the rack-shaped portions of said rail and the dimension Z of the rattle of said indication means are selected to have a relationship of D>Z.
4. A method of installing an apparatus in accordance with claim 2 , wherein the block of said fixture device is provided with a rib of a first type having a first height X to restrict the rotation of said nut plate and a rib of a second type having a second height Y larger than said first height X which are disposed at predetermined positions around a hole in the upper face, and
said first height X, second height Y and the thickness D of said rack-shaped portions are selected to have relationships of X≦D and X<Y.
5. A method of installing an apparatus in accordance with claim 2 , characterized in that the length of the bolt and the dimension of the block are selected so that the clearance Z for providing a predetermined rattle occurs between the integration of said bolt passing through a predetermined washer, a predetermined spring washer and a sleeve having a predetermined length, said nut plate and a nut fastened to said bolt in advance and the lower predetermined portion of the block of the fixture device.
6. A method of installing an apparatus in accordance with claim 2 , characterized in that said indication means comprises a cylinder having a predetermined length and loosely fitted over said bolt and a coil spring having a predetermined compression deformation amount, and the indication of the indication means is the existence of a rattle (play) of a predetermined amount that is present when said bolt is pushed in its axial direction by a force larger than a predetermined magnitude.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/678,654 US20070152123A1 (en) | 2000-08-22 | 2007-02-26 | Installation method for fixing an apparatus |
Applications Claiming Priority (10)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2000251353A JP3866910B2 (en) | 2000-08-22 | 2000-08-22 | Latch device |
JP2000-251353 | 2000-08-22 | ||
JP2000263830A JP3851765B2 (en) | 2000-08-31 | 2000-08-31 | Device mounting apparatus and device mounting method |
JP2000-263830 | 2000-08-31 | ||
JP2000-263829 | 2000-08-31 | ||
JP2000263829A JP3595764B2 (en) | 2000-08-31 | 2000-08-31 | Mounting device |
US10/111,352 US6811129B2 (en) | 2000-08-22 | 2001-08-16 | Fixture device |
PCT/JP2001/007071 WO2002016199A1 (en) | 2000-08-22 | 2001-08-16 | Installation device |
US10/970,287 US7191991B2 (en) | 2000-08-22 | 2004-10-21 | Apparatus fixture device and an installation method for fixing an apparatus |
US11/678,654 US20070152123A1 (en) | 2000-08-22 | 2007-02-26 | Installation method for fixing an apparatus |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/970,287 Division US7191991B2 (en) | 2000-08-22 | 2004-10-21 | Apparatus fixture device and an installation method for fixing an apparatus |
Publications (1)
Publication Number | Publication Date |
---|---|
US20070152123A1 true US20070152123A1 (en) | 2007-07-05 |
Family
ID=27344404
Family Applications (4)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/111,352 Expired - Lifetime US6811129B2 (en) | 2000-08-22 | 2001-08-16 | Fixture device |
US10/970,287 Expired - Lifetime US7191991B2 (en) | 2000-08-22 | 2004-10-21 | Apparatus fixture device and an installation method for fixing an apparatus |
US10/970,288 Expired - Lifetime US7206181B2 (en) | 2000-08-22 | 2004-10-21 | Latch device |
US11/678,654 Abandoned US20070152123A1 (en) | 2000-08-22 | 2007-02-26 | Installation method for fixing an apparatus |
Family Applications Before (3)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/111,352 Expired - Lifetime US6811129B2 (en) | 2000-08-22 | 2001-08-16 | Fixture device |
US10/970,287 Expired - Lifetime US7191991B2 (en) | 2000-08-22 | 2004-10-21 | Apparatus fixture device and an installation method for fixing an apparatus |
US10/970,288 Expired - Lifetime US7206181B2 (en) | 2000-08-22 | 2004-10-21 | Latch device |
Country Status (4)
Country | Link |
---|---|
US (4) | US6811129B2 (en) |
EP (3) | EP1495962B1 (en) |
DE (3) | DE60106194T2 (en) |
WO (1) | WO2002016199A1 (en) |
Families Citing this family (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE60106194T2 (en) * | 2000-08-22 | 2006-03-09 | Matsushita Electric Industrial Co., Ltd., Kadoma | SERVICE DEVICE |
EP1620290A2 (en) * | 2003-05-07 | 2006-02-01 | Johnson Controls Technology Company | Attachment system for modules in a vehicle |
TWM255624U (en) * | 2003-12-30 | 2005-01-11 | King Slide Works Co Ltd | Positioning device for sliding track bracket |
US20060032155A1 (en) * | 2004-07-23 | 2006-02-16 | Goodrich Hella Aerospace Lighting Systems Gmbh | Device for holding a partition wall on a wall in the interior of a vehicle |
JP2009503619A (en) * | 2005-08-01 | 2009-01-29 | サウスコ,インコーポレイティド | Sliding and rotating hinge module |
US20070083298A1 (en) * | 2005-09-28 | 2007-04-12 | Pierce James R | Mobile computing device with modular expansion features |
DE102006007285A1 (en) * | 2006-02-16 | 2007-08-30 | Airbus Deutschland Gmbh | Aircraft`s e.g. passenger aircraft, visualization system, has lining panel lining passenger cabin, where lining panel is coated with flexible display e.g. organic light emitting device display |
WO2007106077A2 (en) * | 2006-03-02 | 2007-09-20 | Southco, Inc. | Drop-in damped hinge module |
US8234752B2 (en) * | 2007-02-21 | 2012-08-07 | Southco, Inc. | Sliding and rotating hinge module |
US7903143B2 (en) * | 2008-03-13 | 2011-03-08 | Dell Products L.P. | Systems and methods for document scanning using a variable intensity display of an information handling system |
US8035737B2 (en) * | 2008-11-26 | 2011-10-11 | Crs Electronic Co., Ltd. | Foldable picture-taking device with scanning function |
CN103162726B (en) * | 2011-12-09 | 2016-07-06 | 重庆旭新悦数控机械有限公司 | Measurement jig |
JP2016011967A (en) * | 2012-11-06 | 2016-01-21 | パナソニック株式会社 | Monitoring device |
US9551456B2 (en) | 2015-02-03 | 2017-01-24 | United Technologies Corporation | Belleville washer nut plate |
EP3147201A1 (en) * | 2015-09-28 | 2017-03-29 | Goodrich Lighting Systems GmbH | Aircraft passenger service unit mounting kit |
CN108233264B (en) * | 2017-12-11 | 2020-06-12 | 国网河北省电力有限公司景县供电分公司 | Wire clamp mounting tool |
CN108263271A (en) * | 2018-03-22 | 2018-07-10 | 四川畅云出行信息技术有限公司 | A kind of display device for taxi joining-person |
CN110485044A (en) * | 2019-09-19 | 2019-11-22 | 浙江睿丰智能科技有限公司 | A kind of linkage control mechanism of head triangle |
CN112392852B (en) * | 2020-11-16 | 2022-01-18 | Oppo广东移动通信有限公司 | Falling self-locking mechanism, folding rotating shaft device and electronic equipment |
CN115199917B (en) * | 2021-04-08 | 2023-08-15 | 南宁富联富桂精密工业有限公司 | Wall hanging device |
Citations (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4867498A (en) * | 1988-12-02 | 1989-09-19 | Chivas Products Limited | Overhead console assembly |
US5012625A (en) * | 1988-06-17 | 1991-05-07 | Propst Robert L | Building enclosure system and method |
US5096271A (en) * | 1991-03-29 | 1992-03-17 | Sony Trans Com, Inc. | Drive assembly, power off retract |
US5144290A (en) * | 1988-10-31 | 1992-09-01 | Kabushiki Kaisha Toshiba | Display unit attachment device |
US5450734A (en) * | 1993-03-09 | 1995-09-19 | Takigen Manufacturing Co., Ltd. | Door locking handle assembly of pull-out and side-swinging lever-action type |
US5583735A (en) * | 1994-01-18 | 1996-12-10 | Hollingsead International, Inc. | Aircraft video monitor deployment and retraction apparatus |
US5887939A (en) * | 1996-06-24 | 1999-03-30 | Yazaki Corporation | Roof module for automobile |
US5946055A (en) * | 1996-08-16 | 1999-08-31 | Rosen Product Development, Inc. | Display unit |
US6007036A (en) * | 1997-09-23 | 1999-12-28 | Rosen Products Llc | Stowable support apparatus |
US6059255A (en) * | 1996-08-16 | 2000-05-09 | Rosen Products Llc | Stowable display apparatus |
US6062623A (en) * | 1998-05-18 | 2000-05-16 | Prince Corporation | Latch for vehicle overhead storage bin |
US6135528A (en) * | 1998-10-20 | 2000-10-24 | Prince Corporation | Combined storage compartment and garage door opening transmitter storage and actuating compartment |
US6292236B1 (en) * | 1999-03-26 | 2001-09-18 | Rosen Products Llc | Automotive-ceiling-mounted monitor |
US6364390B1 (en) * | 2000-07-28 | 2002-04-02 | Rosen Products, Llc | Vehicle display monitor system with improved retention system |
US6400560B1 (en) * | 2000-11-08 | 2002-06-04 | Yue-Hui Chian | Engaging device for a computer screen in a car |
US6412848B1 (en) * | 1999-11-02 | 2002-07-02 | Rosen Products Llc | Vehicle display monitor system |
US20020089185A1 (en) * | 2000-12-18 | 2002-07-11 | Andre Hessling | Device for fastening a first part to a stationary second part |
US20030089825A1 (en) * | 2001-08-01 | 2003-05-15 | Andre Hessling | Device for fastening a first part to a second part |
US6572304B1 (en) * | 1999-01-07 | 2003-06-03 | Hella Kg Hueck & Co. | Device for fixing a first part to a fixed second part |
US6575528B2 (en) * | 2001-10-19 | 2003-06-10 | Lear Corporation | Modular overhead console assembly |
US6633347B2 (en) * | 2001-01-02 | 2003-10-14 | Alpine Electronics, Inc. | Display assembly having display supported on casing to be controllable in attitude |
US6811129B2 (en) * | 2000-08-22 | 2004-11-02 | Matsushita Electric Industrial Co., Ltd. | Fixture device |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3527712A1 (en) | 1985-08-02 | 1987-02-12 | Roland Man Druckmasch | FOLDING APPARATUS WITH A COLLECTING DEVICE BEFORE THE THIRD FOLD |
JPS6378671U (en) | 1986-11-10 | 1988-05-25 | ||
JPH0161801U (en) | 1987-10-09 | 1989-04-20 | ||
JPH05554U (en) | 1991-06-24 | 1993-01-08 | 株式会社東芝 | In-vehicle display device |
JP2603354Y2 (en) | 1993-02-19 | 2000-03-06 | 日本ポリエステル株式会社 | Groove lid receiving frame material |
JP3295243B2 (en) * | 1994-08-26 | 2002-06-24 | 松下電器産業株式会社 | Portable radio mounting device |
US6004036A (en) * | 1998-06-30 | 1999-12-21 | Seagate Technology, Inc. | Fluid dynamic bearing cartridge design incorporating a rotating shaft |
JP3353141B2 (en) * | 1998-11-24 | 2002-12-03 | ミネベア株式会社 | Storage device for video monitor for vehicles |
US6304173B2 (en) * | 1999-01-29 | 2001-10-16 | Lear Automotive Dearborn Inc | Rear view and multi-media system for vehicles |
EP1281577B1 (en) * | 2001-08-01 | 2005-01-26 | Goodrich Hella Aerospace Lighting Systems GmbH | Device for attaching one part to another |
-
2001
- 2001-08-16 DE DE2001606194 patent/DE60106194T2/en not_active Expired - Lifetime
- 2001-08-16 EP EP20040023623 patent/EP1495962B1/en not_active Expired - Lifetime
- 2001-08-16 EP EP01956930A patent/EP1241093B1/en not_active Expired - Lifetime
- 2001-08-16 WO PCT/JP2001/007071 patent/WO2002016199A1/en active IP Right Grant
- 2001-08-16 DE DE2001629259 patent/DE60129259T2/en not_active Expired - Lifetime
- 2001-08-16 DE DE2001624963 patent/DE60124963T2/en not_active Expired - Lifetime
- 2001-08-16 US US10/111,352 patent/US6811129B2/en not_active Expired - Lifetime
- 2001-08-16 EP EP20040023582 patent/EP1514798B1/en not_active Expired - Lifetime
-
2004
- 2004-10-21 US US10/970,287 patent/US7191991B2/en not_active Expired - Lifetime
- 2004-10-21 US US10/970,288 patent/US7206181B2/en not_active Expired - Lifetime
-
2007
- 2007-02-26 US US11/678,654 patent/US20070152123A1/en not_active Abandoned
Patent Citations (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5012625A (en) * | 1988-06-17 | 1991-05-07 | Propst Robert L | Building enclosure system and method |
US5144290A (en) * | 1988-10-31 | 1992-09-01 | Kabushiki Kaisha Toshiba | Display unit attachment device |
US4867498A (en) * | 1988-12-02 | 1989-09-19 | Chivas Products Limited | Overhead console assembly |
US5096271A (en) * | 1991-03-29 | 1992-03-17 | Sony Trans Com, Inc. | Drive assembly, power off retract |
US5450734A (en) * | 1993-03-09 | 1995-09-19 | Takigen Manufacturing Co., Ltd. | Door locking handle assembly of pull-out and side-swinging lever-action type |
US5583735A (en) * | 1994-01-18 | 1996-12-10 | Hollingsead International, Inc. | Aircraft video monitor deployment and retraction apparatus |
US5887939A (en) * | 1996-06-24 | 1999-03-30 | Yazaki Corporation | Roof module for automobile |
US5946055A (en) * | 1996-08-16 | 1999-08-31 | Rosen Product Development, Inc. | Display unit |
US6059255A (en) * | 1996-08-16 | 2000-05-09 | Rosen Products Llc | Stowable display apparatus |
US6007036A (en) * | 1997-09-23 | 1999-12-28 | Rosen Products Llc | Stowable support apparatus |
US6062623A (en) * | 1998-05-18 | 2000-05-16 | Prince Corporation | Latch for vehicle overhead storage bin |
US6135528A (en) * | 1998-10-20 | 2000-10-24 | Prince Corporation | Combined storage compartment and garage door opening transmitter storage and actuating compartment |
US6572304B1 (en) * | 1999-01-07 | 2003-06-03 | Hella Kg Hueck & Co. | Device for fixing a first part to a fixed second part |
US6292236B1 (en) * | 1999-03-26 | 2001-09-18 | Rosen Products Llc | Automotive-ceiling-mounted monitor |
US6412848B1 (en) * | 1999-11-02 | 2002-07-02 | Rosen Products Llc | Vehicle display monitor system |
US6364390B1 (en) * | 2000-07-28 | 2002-04-02 | Rosen Products, Llc | Vehicle display monitor system with improved retention system |
US6811129B2 (en) * | 2000-08-22 | 2004-11-02 | Matsushita Electric Industrial Co., Ltd. | Fixture device |
US7191991B2 (en) * | 2000-08-22 | 2007-03-20 | Matsushita Electric Industrial Co., Ltd. | Apparatus fixture device and an installation method for fixing an apparatus |
US6400560B1 (en) * | 2000-11-08 | 2002-06-04 | Yue-Hui Chian | Engaging device for a computer screen in a car |
US20020089185A1 (en) * | 2000-12-18 | 2002-07-11 | Andre Hessling | Device for fastening a first part to a stationary second part |
US6633347B2 (en) * | 2001-01-02 | 2003-10-14 | Alpine Electronics, Inc. | Display assembly having display supported on casing to be controllable in attitude |
US20030089825A1 (en) * | 2001-08-01 | 2003-05-15 | Andre Hessling | Device for fastening a first part to a second part |
US6732976B2 (en) * | 2001-08-01 | 2004-05-11 | Goodrich Hella Aerospace Lighting Systems Gmbh | Device for fastening a first part to a second part |
US6575528B2 (en) * | 2001-10-19 | 2003-06-10 | Lear Corporation | Modular overhead console assembly |
Also Published As
Publication number | Publication date |
---|---|
EP1495962A3 (en) | 2005-06-29 |
EP1241093B1 (en) | 2004-10-06 |
US20050056755A1 (en) | 2005-03-17 |
EP1495962B1 (en) | 2007-07-04 |
US20050061938A1 (en) | 2005-03-24 |
DE60129259T2 (en) | 2008-03-13 |
US7206181B2 (en) | 2007-04-17 |
EP1495962A2 (en) | 2005-01-12 |
US7191991B2 (en) | 2007-03-20 |
EP1514798A1 (en) | 2005-03-16 |
EP1241093A1 (en) | 2002-09-18 |
DE60124963T2 (en) | 2007-09-06 |
WO2002016199A1 (en) | 2002-02-28 |
DE60129259D1 (en) | 2007-08-16 |
EP1241093A4 (en) | 2003-05-21 |
DE60106194D1 (en) | 2004-11-11 |
US6811129B2 (en) | 2004-11-02 |
US20020162930A1 (en) | 2002-11-07 |
EP1514798B1 (en) | 2006-11-29 |
DE60106194T2 (en) | 2006-03-09 |
DE60124963D1 (en) | 2007-01-11 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US20070152123A1 (en) | Installation method for fixing an apparatus | |
US7364245B2 (en) | Lateral alignment device | |
US7341129B2 (en) | Double-sided door braking equipment for a operator | |
JP2007504984A (en) | Seat fastening system | |
US8038125B2 (en) | Apparatus and methods for lifting and lowering vertically mounted devices | |
MXPA03009783A (en) | Mast payload docking station. | |
US6312014B1 (en) | Shoulder anchor position adjusting device | |
KR100231068B1 (en) | Clip for mobile connector | |
US20100135030A1 (en) | Ceiling recessed-type lamp unit | |
KR100709827B1 (en) | Test Head Manipulator | |
US20060117861A1 (en) | Material tester | |
US4668036A (en) | Large picture display device | |
CN111692464B (en) | System and method for monitor attachment | |
JP3595764B2 (en) | Mounting device | |
KR100494491B1 (en) | Device for receiving a battery for vehicles | |
CN216546163U (en) | Rail transit equipment and run through way and use locking and unlocking device thereof | |
JP3082888B2 (en) | Mounting combination | |
US11490534B1 (en) | Elevated equipment installation apparatus | |
CN218450820U (en) | Controller for parking space guidance system | |
CN220838846U (en) | Automatic screw locking device | |
CN109506903B (en) | Tightening test equipment and test method | |
JPH10205804A (en) | Air conditioner | |
JPS6326563Y2 (en) | ||
CN113997966A (en) | Rail transit equipment and run through way and use locking and unlocking device thereof | |
EP1281577A3 (en) | Device for attaching one part to another |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |