CA1331981C - Luminaires - Google Patents
LuminairesInfo
- Publication number
- CA1331981C CA1331981C CA000570523A CA570523A CA1331981C CA 1331981 C CA1331981 C CA 1331981C CA 000570523 A CA000570523 A CA 000570523A CA 570523 A CA570523 A CA 570523A CA 1331981 C CA1331981 C CA 1331981C
- Authority
- CA
- Canada
- Prior art keywords
- luminaire
- reflector
- carrier
- flange
- aperture
- 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.)
- Expired - Fee Related
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
- F21V17/10—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening
- F21V17/107—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening using hinge joints
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V21/00—Supporting, suspending, or attaching arrangements for lighting devices; Hand grips
- F21V21/02—Wall, ceiling, or floor bases; Fixing pendants or arms to the bases
- F21V21/04—Recessed bases
Abstract
ABSTRACT
(FS1V) (FS1S) (FS1M) A luminaire for fitting in a ceiling has a carrier frame with a rectangular slot in it which receives a reflector unit. The reflector unit carries lamps and is pivotably mounted to swing from its operatively longitudinal position, to a dependant position in which the lamps are accessable
(FS1V) (FS1S) (FS1M) A luminaire for fitting in a ceiling has a carrier frame with a rectangular slot in it which receives a reflector unit. The reflector unit carries lamps and is pivotably mounted to swing from its operatively longitudinal position, to a dependant position in which the lamps are accessable
Description
. .
'`? ' ~: . :,' ' , ~ ~ ~ .. .. , .. `
~ 2 - - ~
~ ~ ~ - .. -T~I~ INYB~TION relates to a luminaire of the type which ```
is fitted into or on to a ceiling.
......
~ Luminaires o~ this kind are widely used in offices, ¦ shop6 and similar premises. One kind which is known to S the applicant consists of a box structure made of metal ~ ;~
1~ sheet. The lower ~ide of the box structure is defined `
¦~ by a reflector unit (also known as a louvre) or a ;~: .:
~;; diffuser which is located flush with the ceiling when ;~
. ':
the b~x structure is operatively posltioned within the plenum above the ceiling. Lamps are mounted within the box structure, ; ~ ' , , .. -~ , , .
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- 3 ~ ~3319~
A luminaire of this kind suffers from disadvantages.
When the lamps, starters or ballasts have to be replaced from time to time, access has to be gained to the lamps or starters within the box structure. In ~; 5 order to do so, it is usually necessary to use a ladder. This is time consuming and can be inconvenient. Moreover, in open plan offices and shops it is often difficult to position ladders under the ;~ luminaires.
~, Another disadvantage of a prior art luminaire is that either a ceiling panel or the entire box structure must be removed from the ceiling to gain access to the ~-~
ceiling plenum. Also, because the lamps and reflector unit are mounted separately on the box structure of the prior art luminaire, their alignment relative to one another is not always accurate, which can affect the performance of the luminaire. Further, because of the ;~
height of the box structure of a prior art luminaire, the ceiling plenum within which the luminaire is housed must be of relatively great depth, which can increase building costs. Accessing the box from the front also :~
often results in fingermarks on the reflective surface which cam impede its effectivity and be unsightly. -~
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.. . . .
It is an o~ect of the invention to provide a luminaire in which one or more of the abovementioned ; ;
disadvantages of prior art luminaires are sought to be overcome.
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A luminaire according to the invention which is adapted ~ ~ to be mounted in or on a ceiling comprises carrier ;~ means mountable in or on the ceiling, a reflector unit r~cei~able on the carrier means and adapted to receive a lamp means, the reflector unit being displaceable relative to the carrier means to give access ~to the ;
lamp position. ` ~ -'.
The carrier means may be in the form of a rectangular carrier tray having an aperture therein extending centrally along the length thereof, the reflector unit occupying the aperture in the carrier tray $n an operative position of the reflector unit. The lamp may be carried on a lamp holder carrier mountable on the re~lector unit on the upper side thereof. The lamp holder carrier may also carry a starter for the lamp and a terminal block connector for an electrical cable ;' i supplying power to the lamp.
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The reflector unit is preferably pivoted to the carrier tray so that it can be swung from its operative horizontal position to a dependant position.
In an alternative form, the carrier means may comprise two carrier parts adapted to be mounted in or on the ceiling at positions spaced from one another, the reflector unit being receivable at opposite ends thereof on the carrier parts.
The term `reflector unit' in this specification should be understood to include a houslng means for a lamp including such housing used to hold a diffuser element.
In a broad aspect, therefore, the present invention relates to a luminaire adapted to be mounted to a ceiling comprising aarrier means mounted to a ceiling, a reflector unit receivable on the carrier means and pivotally mounted thereto, and being adapted to mechanically and electrically connect to an elongate gas discharge lamp means, the reflector unlt being displaceable relative to the carrier means from an operatively approximately horizontal position to a dependant position, to lower the reflector to a position whiah will give a worker access to the lamp position when the worker is standing substantially at floor " ~
;` level. ;
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- 5(a) - :
Preferred embodiments of the invention are described below ~y way of example, and with reference to the accompanying :
drawings, in which~
~', ' '"',' Figure 1 Is a perspective view of a luminaire according to the invention mounted in a ;~
~ ceiling; -;
: Figures 2 ~ 3 are similar views showing how a part of ~:
the luminaire is demounted;
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~igura ~ is an exploded perspective view from above of the luminaire of . -: .
Figures 1 to 3;
Figur~ S is a perspective view from above of S the luminaire further illustrating the luminaire; ~.
, , :~ Figuras 6 ~ 7 are enlarged views of parts of the luminaire; and, Flgur~ 8 & 9 are views of an alternate opening and closing tool to that of Figures 2 and 7 for the luminaire. ~ :. ;
~ ....
With reference to Figure l, a luminaire (1) is mounted in a suspended ceiling (2~. The ceiling (2) is of ~ ~
conventional constructi.on in which ceiling panels (3) ~ ~ :
rest on a grid structure suspended by means of hangers .
(4) from a support surface. The grid struc~ure is made ..
up o~ elements (5) of inverted 'T' shape in cross-section, the celling panels (3) resting on the . .. ..
horizontal flanges of the elements (5). The luminaire ~. .
(1) is mounted in the ceiling by being introduced into -the plenum above the ceiling (2) and then being lowered , ~ ... .
to reat on the elements (5) of the grid structure, in `- -the same manner as the ceiling panels (3). . .;
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The components of the luminaire (l) are best illustrated in Figure 4 in which the components are ~ seen from above, that is, from inside the plenum above;~
: the ceiling (2). The luminaire comprises a rectangular:~:
carrier tray (6) having a central aperture (7) ~
extending along its Iength. A reflector unit (8) fits ~ :
on the carrier tray (6) and occupies the aperture (7).:
The reflector unit is positioned so that it will ~; downwardly reflect light provided by a pair of . :~
fluorescent lamps (9). :
Each lamp (g) is carried by lamp holders (lO) mounted ~
on a la~p holder carrier (ll). The lamp holder carrier ~ ~ ;
(ll) fits directly onto the reflector unit (8). Each lamp holder carrier ~l1) also has a starter (12) and terminal bloak connector (13) mounted on it. As shown!;~
in Figure 5, electrical cables ~14) which supply power~ .
to the lamps (9), connect to the terminal block .~
connectors ~l3). In this embodiment of the invention .. `
~: each lamp holder carrier (ll) is fitted to the .~ :
ref1ector unit (8) by inter-engagement of a series of ; keyhole slots (15) in the lamp holder carrier (ll) with a corresponding~ series of lugs (16) provided on the ~: reflector unit (8). This arrangement permits the lamp. ` .::
"~
':.',~' holder carriers (11) to be mounted on the reflector unit in clip-on manner. Swivel clips or alternative clip-on arrangement~, may be used.
. ' ,:
A channel member (17) is mounted on the carrier tray ~ -(6) to one side of the aperture (7). The ahannel ;
member (17) aonveniently has a pair of keyhole slots (18) which inter-engage with a pair of screws (19) on the carrier tray (6) in clip~on manner. The channel member (17) carrles the control gear (not shown) of the luminaire (1).
At one end the reflector unit (8) has a pair of stub pivots (20) which are received in a corresponding pair ; of cradle recesses (21j in the carrier tray ~6). At the opposite end of the aperture (7) the carrier tray (6) has latching means in the for~ of a hinged flange ` ` ;`
(22). The hinged flange may be spring loaded to assume a horizontal position, or it may do so under the action ~ `
of gravity. The arrangement i5 such that in its operative position the reflector unit (8) rests at one end in the recesses ~21) of the carrier tray (6) and at ~`
the other end on the flange (22). When the end of the reflector unit recting on the hinged flange (22) is `~
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lifted together with the hinged flange (22) as indicated in Figure 2, this end of the reflector unit can clear the aperture (7) and the reflector unlt can be swung downwardly about the ~tub pivots ~20) to the position shown in Figure 3. In this position the lamp holder carriers (11) can readily be removed to replace ~: the fluorescent lamps ~9) and starters ~12). Access is also given to the upper side of the carrier tray (6) as : shown in Figure 4 if the control gear mounted in the channel member (17) requires attention. The channel member (17~ can easily be removed from the side;of the carrier tray (6) by loosening the screws (19). Also, access is given through the aperuture (7~ to the plenum above the ceiling (2) for work and inspection to be carried out in the plenum.
To return the reflector unit (8) to its horizontal operative position it is swung back through the aperture (7). In doing 50 it lifts the hinged flange :~ (22) and when the reflector unit is then lowered to a horizontal position, the hinged flange (22) has returned to its normal position to provide support for the reflector unit. :
. , .
:, - lo - ~3319~1 Preferably, a ~uitable lifting tool will be used to lower and raise the reflector unit (8). One such ltfting tool (23) is shown in Figures 2 and 7 comprising a pole (23a) which has a head with flanges, ~23b), (23c) arranged to engage the hinged flange (22) and reflector unit t8) respectively. An alternative ~ tool is shown in Figures 1 and 8.
: , Referring to Figures 8 and g, an alternative head for use in opening and closing the above described luminaire is shown. The head has an operatively vertical rectangular flange (30), with a deep 'V' slot (31) in the middle, and lateral short flanges (32) extending operatively vertically to each side of the ~lot. Extending passed the bottom of each lateral flange, is a further flange in the form of horizontal shelves (33) having their long edges parallel to the .. ; ~-:
vertical ~lanqe. The lower end (34) of the head has an axial opening for receiving a pole end.
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In use, the slot accommodates the 'V' of the reflector wall, and the lateral vertical flanges engage the `
. .
reflector wall edge. The horizontal shelf operates to ~-' :
. :,,.
- ~ 3 3 ~ ~
move the carriar ~lange free of the re~lector during raising and lowering ther of.
It will be appreciated that because of its construction the luminaire (1) has a relatively small height and can therefore be accommodated in a ceiling having a plenum of relatively small height. Because the lamp holder carriers (11~ are mounted directly on the reflector unit (8), the lamps (9) are accurately positioned relative to the reflector unit (8), which ensures maximum performance of the luminaire. Also, as described earlier, it is a relatively simple matter to replace the lamps ~9) and starters (12) o~ the luminaire and this can easily be done without the use of a ladder.
Many other embodiments of the invention may be made differing in matters of detail only from that described above and without departing from the scope of ~he invention as defined in the consistory statements.
~, :, '' .:
' ~
:, .
~ '
'`? ' ~: . :,' ' , ~ ~ ~ .. .. , .. `
~ 2 - - ~
~ ~ ~ - .. -T~I~ INYB~TION relates to a luminaire of the type which ```
is fitted into or on to a ceiling.
......
~ Luminaires o~ this kind are widely used in offices, ¦ shop6 and similar premises. One kind which is known to S the applicant consists of a box structure made of metal ~ ;~
1~ sheet. The lower ~ide of the box structure is defined `
¦~ by a reflector unit (also known as a louvre) or a ;~: .:
~;; diffuser which is located flush with the ceiling when ;~
. ':
the b~x structure is operatively posltioned within the plenum above the ceiling. Lamps are mounted within the box structure, ; ~ ' , , .. -~ , , .
,~
';
, ~
:
~" ~ ," "~
- 3 ~ ~3319~
A luminaire of this kind suffers from disadvantages.
When the lamps, starters or ballasts have to be replaced from time to time, access has to be gained to the lamps or starters within the box structure. In ~; 5 order to do so, it is usually necessary to use a ladder. This is time consuming and can be inconvenient. Moreover, in open plan offices and shops it is often difficult to position ladders under the ;~ luminaires.
~, Another disadvantage of a prior art luminaire is that either a ceiling panel or the entire box structure must be removed from the ceiling to gain access to the ~-~
ceiling plenum. Also, because the lamps and reflector unit are mounted separately on the box structure of the prior art luminaire, their alignment relative to one another is not always accurate, which can affect the performance of the luminaire. Further, because of the ;~
height of the box structure of a prior art luminaire, the ceiling plenum within which the luminaire is housed must be of relatively great depth, which can increase building costs. Accessing the box from the front also :~
often results in fingermarks on the reflective surface which cam impede its effectivity and be unsightly. -~
: '''.'','.. :' ' :.
:`~ : .. '....... ,.:
~, ', ' "' ""
_ 4 _ l 331981 .--~
.. . . .
It is an o~ect of the invention to provide a luminaire in which one or more of the abovementioned ; ;
disadvantages of prior art luminaires are sought to be overcome.
', ~ ,' .',', ''-..'',~
A luminaire according to the invention which is adapted ~ ~ to be mounted in or on a ceiling comprises carrier ;~ means mountable in or on the ceiling, a reflector unit r~cei~able on the carrier means and adapted to receive a lamp means, the reflector unit being displaceable relative to the carrier means to give access ~to the ;
lamp position. ` ~ -'.
The carrier means may be in the form of a rectangular carrier tray having an aperture therein extending centrally along the length thereof, the reflector unit occupying the aperture in the carrier tray $n an operative position of the reflector unit. The lamp may be carried on a lamp holder carrier mountable on the re~lector unit on the upper side thereof. The lamp holder carrier may also carry a starter for the lamp and a terminal block connector for an electrical cable ;' i supplying power to the lamp.
,~
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The reflector unit is preferably pivoted to the carrier tray so that it can be swung from its operative horizontal position to a dependant position.
In an alternative form, the carrier means may comprise two carrier parts adapted to be mounted in or on the ceiling at positions spaced from one another, the reflector unit being receivable at opposite ends thereof on the carrier parts.
The term `reflector unit' in this specification should be understood to include a houslng means for a lamp including such housing used to hold a diffuser element.
In a broad aspect, therefore, the present invention relates to a luminaire adapted to be mounted to a ceiling comprising aarrier means mounted to a ceiling, a reflector unit receivable on the carrier means and pivotally mounted thereto, and being adapted to mechanically and electrically connect to an elongate gas discharge lamp means, the reflector unlt being displaceable relative to the carrier means from an operatively approximately horizontal position to a dependant position, to lower the reflector to a position whiah will give a worker access to the lamp position when the worker is standing substantially at floor " ~
;` level. ;
~: =
` ` 1 3 3 1 9 8 ~
- 5(a) - :
Preferred embodiments of the invention are described below ~y way of example, and with reference to the accompanying :
drawings, in which~
~', ' '"',' Figure 1 Is a perspective view of a luminaire according to the invention mounted in a ;~
~ ceiling; -;
: Figures 2 ~ 3 are similar views showing how a part of ~:
the luminaire is demounted;
. ~
~'~,'"'`
"`,,',~, ,``'`~,`,'~" ''''', ,., .~ ,~
/ ;:'.'',.,',.`,.,".','"
, / ''',"',','`''.''.,' ~;~ /' '. .`:
` ~ ' "''.'',',~'."',', '''' ''' - 6 ~ ~33~9~
~igura ~ is an exploded perspective view from above of the luminaire of . -: .
Figures 1 to 3;
Figur~ S is a perspective view from above of S the luminaire further illustrating the luminaire; ~.
, , :~ Figuras 6 ~ 7 are enlarged views of parts of the luminaire; and, Flgur~ 8 & 9 are views of an alternate opening and closing tool to that of Figures 2 and 7 for the luminaire. ~ :. ;
~ ....
With reference to Figure l, a luminaire (1) is mounted in a suspended ceiling (2~. The ceiling (2) is of ~ ~
conventional constructi.on in which ceiling panels (3) ~ ~ :
rest on a grid structure suspended by means of hangers .
(4) from a support surface. The grid struc~ure is made ..
up o~ elements (5) of inverted 'T' shape in cross-section, the celling panels (3) resting on the . .. ..
horizontal flanges of the elements (5). The luminaire ~. .
(1) is mounted in the ceiling by being introduced into -the plenum above the ceiling (2) and then being lowered , ~ ... .
to reat on the elements (5) of the grid structure, in `- -the same manner as the ceiling panels (3). . .;
~ ~ , ~,.. ,,, -"
. . . .
.. :~" ~
- 7 ~
:~ 1331~81 ~ ~
The components of the luminaire (l) are best illustrated in Figure 4 in which the components are ~ seen from above, that is, from inside the plenum above;~
: the ceiling (2). The luminaire comprises a rectangular:~:
carrier tray (6) having a central aperture (7) ~
extending along its Iength. A reflector unit (8) fits ~ :
on the carrier tray (6) and occupies the aperture (7).:
The reflector unit is positioned so that it will ~; downwardly reflect light provided by a pair of . :~
fluorescent lamps (9). :
Each lamp (g) is carried by lamp holders (lO) mounted ~
on a la~p holder carrier (ll). The lamp holder carrier ~ ~ ;
(ll) fits directly onto the reflector unit (8). Each lamp holder carrier ~l1) also has a starter (12) and terminal bloak connector (13) mounted on it. As shown!;~
in Figure 5, electrical cables ~14) which supply power~ .
to the lamps (9), connect to the terminal block .~
connectors ~l3). In this embodiment of the invention .. `
~: each lamp holder carrier (ll) is fitted to the .~ :
ref1ector unit (8) by inter-engagement of a series of ; keyhole slots (15) in the lamp holder carrier (ll) with a corresponding~ series of lugs (16) provided on the ~: reflector unit (8). This arrangement permits the lamp. ` .::
"~
':.',~' holder carriers (11) to be mounted on the reflector unit in clip-on manner. Swivel clips or alternative clip-on arrangement~, may be used.
. ' ,:
A channel member (17) is mounted on the carrier tray ~ -(6) to one side of the aperture (7). The ahannel ;
member (17) aonveniently has a pair of keyhole slots (18) which inter-engage with a pair of screws (19) on the carrier tray (6) in clip~on manner. The channel member (17) carrles the control gear (not shown) of the luminaire (1).
At one end the reflector unit (8) has a pair of stub pivots (20) which are received in a corresponding pair ; of cradle recesses (21j in the carrier tray ~6). At the opposite end of the aperture (7) the carrier tray (6) has latching means in the for~ of a hinged flange ` ` ;`
(22). The hinged flange may be spring loaded to assume a horizontal position, or it may do so under the action ~ `
of gravity. The arrangement i5 such that in its operative position the reflector unit (8) rests at one end in the recesses ~21) of the carrier tray (6) and at ~`
the other end on the flange (22). When the end of the reflector unit recting on the hinged flange (22) is `~
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lifted together with the hinged flange (22) as indicated in Figure 2, this end of the reflector unit can clear the aperture (7) and the reflector unlt can be swung downwardly about the ~tub pivots ~20) to the position shown in Figure 3. In this position the lamp holder carriers (11) can readily be removed to replace ~: the fluorescent lamps ~9) and starters ~12). Access is also given to the upper side of the carrier tray (6) as : shown in Figure 4 if the control gear mounted in the channel member (17) requires attention. The channel member (17~ can easily be removed from the side;of the carrier tray (6) by loosening the screws (19). Also, access is given through the aperuture (7~ to the plenum above the ceiling (2) for work and inspection to be carried out in the plenum.
To return the reflector unit (8) to its horizontal operative position it is swung back through the aperture (7). In doing 50 it lifts the hinged flange :~ (22) and when the reflector unit is then lowered to a horizontal position, the hinged flange (22) has returned to its normal position to provide support for the reflector unit. :
. , .
:, - lo - ~3319~1 Preferably, a ~uitable lifting tool will be used to lower and raise the reflector unit (8). One such ltfting tool (23) is shown in Figures 2 and 7 comprising a pole (23a) which has a head with flanges, ~23b), (23c) arranged to engage the hinged flange (22) and reflector unit t8) respectively. An alternative ~ tool is shown in Figures 1 and 8.
: , Referring to Figures 8 and g, an alternative head for use in opening and closing the above described luminaire is shown. The head has an operatively vertical rectangular flange (30), with a deep 'V' slot (31) in the middle, and lateral short flanges (32) extending operatively vertically to each side of the ~lot. Extending passed the bottom of each lateral flange, is a further flange in the form of horizontal shelves (33) having their long edges parallel to the .. ; ~-:
vertical ~lanqe. The lower end (34) of the head has an axial opening for receiving a pole end.
"',",`,', .'"~'~
In use, the slot accommodates the 'V' of the reflector wall, and the lateral vertical flanges engage the `
. .
reflector wall edge. The horizontal shelf operates to ~-' :
. :,,.
- ~ 3 3 ~ ~
move the carriar ~lange free of the re~lector during raising and lowering ther of.
It will be appreciated that because of its construction the luminaire (1) has a relatively small height and can therefore be accommodated in a ceiling having a plenum of relatively small height. Because the lamp holder carriers (11~ are mounted directly on the reflector unit (8), the lamps (9) are accurately positioned relative to the reflector unit (8), which ensures maximum performance of the luminaire. Also, as described earlier, it is a relatively simple matter to replace the lamps ~9) and starters (12) o~ the luminaire and this can easily be done without the use of a ladder.
Many other embodiments of the invention may be made differing in matters of detail only from that described above and without departing from the scope of ~he invention as defined in the consistory statements.
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Claims (15)
1. A luminaire adapted to be mounted to a ceiling comprising carrier means mounted to a ceiling, a reflector unit receivable on the carrier means and pivotally mounted thereto, and being adapted to mechanically and electrically connect to an elongate gas discharge lamp means, the reflector unit being displaceable relative to the carrier means from an operatively approximately horizontal position to a dependant position, to lower the reflector to a position which will give a worker access to the lamp position when the worker is standing substantially at floor level.
2. A luminaire as claimed in Claim 1 in which the carrier means is a carrier tray having latching means for holding the reflector unit in its operative position.
3. A luminaire as claimed in Claim 2 in which the latching means includes a hinged flange on the carrier movable between an operatively horizontal holding position and an upwardly inclined release position, with the reflector being pivotable from its dependant position upwardly to engage the flange in its holding position and swing the flange to its release position, and to further move past the flange to allow it to return to its holding position, and to pivot downwardly again to rest on the flange in that holding position.
4. A luminaire as claimed in Claim 3 in which the flange is biased to its holding position under force of gravity.
5. A luminaire as claimed in Claim 1 in which the carrier means is a carrier tray having an aperture in it for receiving the reflector means in operative position.
6. A luminaire as claimed in Claim 5 in which the upper surface of the reflector unit releasably supports a lamp holder means.
7. A luminaire as claimed in Claim 6 in which the lamp holder means is arranged to carry a starter means for gas discharge tube lamps.
8. A luminaire as claimed in Claim 6 in which the lamp holder means is supported on the reflector unit by clips.
9. A luminaire as claimed in Claim 1 in which the reflector has laterally extending stub hinges operatively located in cradle recesses at each side of an aperture in the carrier which receives the reflector.
10. A tool adapted for use in raising and lowering a reflector in a luminaire as claimed in Claim 3, said tool comprising a head on a pole, the head having a reflector engaging formation and a formation arranged to engage the hinged flange of the carrier and swing it upwardly to clear the reflector for movement past the flange.
11. A tool as claimed in Claim 10 in which the head has at least one shaped recess arranged to engage partitions between reflector compartments, and a lug extending laterally from the recess arranged to engage the carrier flange.
12. A luminaire as claimed in Claim 1 in which the carrier tray has an aperture in it for receiving the reflector means in operative position.
13. A luminaire as claimed in Claim 2 in which the carrier tray has an aperture in it for receiving the reflector means in operative position.
14. A luminaire as claimed in Claim 3 in which the carrier tray has an aperture in it for receiving the reflector means in operative position.
15. A luminaire as claimed in Claim 4 in which the carrier tray has an aperture in it for receiving the reflector means in operative position.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ZA87/4620 | 1987-06-26 | ||
| ZA874620 | 1987-06-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1331981C true CA1331981C (en) | 1994-09-13 |
Family
ID=25578892
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000570523A Expired - Fee Related CA1331981C (en) | 1987-06-26 | 1988-06-27 | Luminaires |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US4967324A (en) |
| AU (1) | AU606961B2 (en) |
| CA (1) | CA1331981C (en) |
| GB (1) | GB2206193B (en) |
| IL (1) | IL86850A0 (en) |
Families Citing this family (25)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU617085B3 (en) * | 1990-02-12 | 1991-09-20 | Inlite Pty Ltd | Light fitting with removable globe holding reflector |
| US5564815A (en) * | 1994-06-29 | 1996-10-15 | Lightron Of Cornwall Incorporated | Adjustable light fixture |
| CH691506A5 (en) * | 1996-03-15 | 2001-07-31 | Regent Beleuchtungskoerper Ag | Light has holders that hold housing in ceiling and cover element covers part of inner space and bounds upwardly open opening together with housing part |
| USD379546S (en) * | 1996-04-26 | 1997-05-27 | Lightron Of Cornwall Incorporated | Recessed adjustable light fixture |
| DE19631483A1 (en) * | 1996-08-03 | 1998-02-05 | Thorn Licht Gmbh | Rectangular or square recessed ceiling light in outline |
| WO2001020223A2 (en) * | 1999-09-17 | 2001-03-22 | Brightline, L.P. | Adjustable fluorescent lighting fixtures |
| DE10360943A1 (en) * | 2003-12-23 | 2005-07-21 | Engel, Hartmut S. | lighting device |
| ITFI20040081A1 (en) * | 2004-04-02 | 2004-07-02 | Knauf Di Lothar Knauf S A S | BUILT-IN LAMP STRUCTURE |
| US7922351B2 (en) * | 2005-01-08 | 2011-04-12 | Welker Mark L | Fixture |
| US20060152921A1 (en) * | 2005-01-08 | 2006-07-13 | Welker Mark L | Fixture and methods |
| US7293895B2 (en) * | 2005-10-20 | 2007-11-13 | Cathode Lighting Systems, Inc. | Modular lighting system and method of installation |
| US7828468B2 (en) * | 2006-06-22 | 2010-11-09 | Acuity Brands, Inc. | Louver assembly for a light fixture |
| US7993030B2 (en) * | 2006-09-15 | 2011-08-09 | Innovative D-Lites Llc | Lighting system |
| US7591566B2 (en) * | 2006-09-15 | 2009-09-22 | Innovative D-Lites Llc | Lighting system |
| US8220957B2 (en) | 2007-02-12 | 2012-07-17 | Abl Ip Holding Llc | Retrofit light assembly |
| US8153894B2 (en) | 2008-04-01 | 2012-04-10 | Abl Ip Holding Llc | Mounting system |
| USD612534S1 (en) | 2008-04-24 | 2010-03-23 | Abl Ip Holding Llc | Bracket |
| USD640825S1 (en) | 2008-04-24 | 2011-06-28 | Abl Ip Holding Llc | Louver |
| US8382340B2 (en) | 2008-10-03 | 2013-02-26 | Lsi Industries, Inc. | Interchangeable lightiing |
| MX2011012415A (en) * | 2009-05-20 | 2012-04-30 | Mark L Welker | Germicidal fixture and methods. |
| US9310037B2 (en) | 2012-02-08 | 2016-04-12 | Brightline, Inc. | Motorized lighting fixture with motor and light dimming control |
| US10082261B2 (en) | 2014-10-08 | 2018-09-25 | Milyon, LLC | Pivotable light fixture |
| US9989225B2 (en) * | 2016-06-13 | 2018-06-05 | Litetronics International, Inc. | System configured for mounting with a ceiling support grid and method of installation |
| US10161579B2 (en) * | 2016-12-02 | 2018-12-25 | Litetronics International, Inc. | LED light panel and method of installation |
| US9671095B1 (en) * | 2016-12-02 | 2017-06-06 | Litetronics International, Inc. | Lighting system configured for mounting with a ceiling support grid and method of installation |
Family Cites Families (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE34204C (en) * | Dr. H. HlRZEL, Professor in Plagwitz - Leipzig | Safety device for the closed supply of oil gas retorts | ||
| US488971A (en) * | 1892-12-27 | Lamp-support | ||
| US933854A (en) * | 1908-04-10 | 1909-09-14 | Oliver O M Sciple | Sectional pole. |
| US2063583A (en) * | 1935-06-24 | 1936-12-08 | Adlake Co | Deck sash fixture |
| DE729239C (en) * | 1938-12-24 | 1942-12-11 | Richard Koenig | Luminaire suspension for electrical outdoor lighting systems |
| GB886062A (en) * | 1959-03-05 | 1962-01-03 | El Be Elek Ska Aktiebolag | Improvements in and relating to lanterns or like lamp fixtures for lamp-posts and the like |
| FR1365409A (en) * | 1963-05-20 | 1964-07-03 | Improvements to lighting devices | |
| US3530625A (en) * | 1968-03-29 | 1970-09-29 | Armstrong Cork Co | Ceiling panel hanger removal |
| US3660651A (en) * | 1970-07-29 | 1972-05-02 | Indy Lighting Inc | Adjustable light fixture |
| US3790774A (en) * | 1972-06-23 | 1974-02-05 | Sunbeam Lighting Co | Fluorescent luminaire |
| US3778609A (en) * | 1972-07-19 | 1973-12-11 | M Liberman | Recessed lighting fixture |
| US4175281A (en) * | 1978-08-22 | 1979-11-20 | Esquire, Inc. | Ceiling mounted support structure |
| US4222093A (en) * | 1979-02-14 | 1980-09-09 | Devine Lighting, Incorporated | Light mounting fixture assembly |
| US4255781A (en) * | 1979-07-25 | 1981-03-10 | General Electric Company | Luminaire latch device |
| US4651258A (en) * | 1986-03-06 | 1987-03-17 | Professional Medical Products, Inc. | Retractable light assembly |
| US4674016A (en) * | 1986-03-17 | 1987-06-16 | Gallagher P Christopher J | Lighting apparatus |
-
1988
- 1988-06-24 US US07/211,365 patent/US4967324A/en not_active Expired - Fee Related
- 1988-06-24 IL IL86850A patent/IL86850A0/en unknown
- 1988-06-27 GB GB8815163A patent/GB2206193B/en not_active Expired - Lifetime
- 1988-06-27 CA CA000570523A patent/CA1331981C/en not_active Expired - Fee Related
- 1988-06-27 AU AU18425/88A patent/AU606961B2/en not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| US4967324A (en) | 1990-10-30 |
| AU606961B2 (en) | 1991-02-21 |
| GB2206193B (en) | 1991-05-22 |
| AU1842588A (en) | 1989-01-05 |
| GB8815163D0 (en) | 1988-08-03 |
| IL86850A0 (en) | 1988-11-30 |
| GB2206193A (en) | 1988-12-29 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKLA | Lapsed |