CA1289520C - Keyboard support apparatus - Google Patents
Keyboard support apparatusInfo
- Publication number
- CA1289520C CA1289520C CA000546107A CA546107A CA1289520C CA 1289520 C CA1289520 C CA 1289520C CA 000546107 A CA000546107 A CA 000546107A CA 546107 A CA546107 A CA 546107A CA 1289520 C CA1289520 C CA 1289520C
- Authority
- CA
- Canada
- Prior art keywords
- bracket
- keyboard
- pivot pin
- support apparatus
- mounting body
- 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 - Lifetime
Links
Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
- A47B21/00—Tables or desks for office equipment, e.g. typewriters, keyboards
- A47B21/03—Tables or desks for office equipment, e.g. typewriters, keyboards with substantially horizontally extensible or adjustable parts other than drawers, e.g. leaves
- A47B21/0314—Platforms for supporting office equipment
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
- A47B21/00—Tables or desks for office equipment, e.g. typewriters, keyboards
- A47B21/03—Tables or desks for office equipment, e.g. typewriters, keyboards with substantially horizontally extensible or adjustable parts other than drawers, e.g. leaves
- A47B21/0314—Platforms for supporting office equipment
- A47B2021/0321—Keyboard supports
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
- A47B21/00—Tables or desks for office equipment, e.g. typewriters, keyboards
- A47B21/03—Tables or desks for office equipment, e.g. typewriters, keyboards with substantially horizontally extensible or adjustable parts other than drawers, e.g. leaves
- A47B21/0314—Platforms for supporting office equipment
- A47B2021/0321—Keyboard supports
- A47B2021/0328—Keyboard supports of the pantograph type
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
- A47B21/00—Tables or desks for office equipment, e.g. typewriters, keyboards
- A47B21/03—Tables or desks for office equipment, e.g. typewriters, keyboards with substantially horizontally extensible or adjustable parts other than drawers, e.g. leaves
- A47B21/0314—Platforms for supporting office equipment
- A47B2021/0321—Keyboard supports
- A47B2021/0335—Keyboard supports mounted under the worksurface
-
- 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
- Y10S248/918—Ancillary device support associated with a video display screen
Abstract
ABSTRACT
A keyboard support apparatus includes two substantially rigid parallel rods. Each of the rods has a first respective bracket at one end. Each rod is also slideably connected to a second respective bracket. Also the rods are interconnected via keyboard mounting body which makes a slideable connection with each rod. A manually operable screw fits into a threaded hole in the mounting body and may be adjusted to bear against one of the rods and thereby prevent the mounting body from sliding along the rods. A keyboard or a keyboard shelf is mounted in front of the keyboard mounting body by means of a further structure which connects the underside of the keyboard or shelf to the underside of the mounting body. When the support apparatus is screwed to the underside of the desk the keyboard may be slid under the desk or pulled out in front of the desk. A preferred structure for mounting the keyboard onto the keyboard mounting body is also described.
A keyboard support apparatus includes two substantially rigid parallel rods. Each of the rods has a first respective bracket at one end. Each rod is also slideably connected to a second respective bracket. Also the rods are interconnected via keyboard mounting body which makes a slideable connection with each rod. A manually operable screw fits into a threaded hole in the mounting body and may be adjusted to bear against one of the rods and thereby prevent the mounting body from sliding along the rods. A keyboard or a keyboard shelf is mounted in front of the keyboard mounting body by means of a further structure which connects the underside of the keyboard or shelf to the underside of the mounting body. When the support apparatus is screwed to the underside of the desk the keyboard may be slid under the desk or pulled out in front of the desk. A preferred structure for mounting the keyboard onto the keyboard mounting body is also described.
Description
~Z895Z~
This lnventlon relates to a support apparatus su$table, but not excluslvely, for ~upportlng an electronic keyboard from a desk.
Electronic keyboards are commonly used on desks ln offices and it is desirable to present the keyboard to the operator at a convenient positlon and orlentatlon. Owing to the wlde range in the requirements of keyboard oparators it is known to provide versatile keyboard supports which may be adJusted to present the keyboard in a convenient posltion and orlentatlon. Such keyboard supports suffer from the drawback ~hat they are cumbersome and dlfflcult to ad~ust. ~n partlcular it 18 ~ problem that ~fter the keyboard has been moved from its working posltlon, ln order for the desk to be used for another purpose, a lengthy ad~ustment procedure ls necessary before the keyboard can be returned to the optlmum worklng posltlon.
Accordlng to the pr-sent lnventlon, there 18 provlded a keyboard oupport pparatu- comprl-lng a first bracket and a ~econd bracket interconnected by first, second and third elongate members; said first and second elongate members being pivotally attached by means of a first pivot pin to said first bracket; said first elongate member being also pivotally attached by means of a second pivot pin to said second bracket; said third elongate member being pivotally attached by means of a third pivot pin to said first bracket; said cecond and third elongate members being pivotally attached with a ~289S2V
fourth pivot pin disposed on said ~econd bracket, and said fourth pivot pin being arranged so as to move relative to at least ene of ~aid second and third elongate members along an axially directed rectilinear path defined ~y ~aid at least one of said members and to releasably clamp said second and third elongate members in a preselected position; the arrangement being such that, in use, one of the first aad second brachets is connected to a supporting surface and the other to a keyboard, and the elongate members, when released from engagement with the second brac~et, are movable substantially in the same plane Preferred embodiments wlll now be descrlbed by way of example only wlth reference to the accompanylng drawlngs ln wh~ch Figure 1 shows a perspectlve vlew of a keyboard support apparatus Flgure 2 shows a plan vlew of the keyboard support apparatus shown ln Flgure 1:
Figuro 3 hows a perspoctive vlew of anoth-r keyboard Jupport apparatu8;
Flgure 4 shows a detall of part of the further keyboard support apparatus shown ln Figure 3 Figure 5 shows a ~lde vlew of the further k-yboard support apparatus shown ln Flgure 3 at one extr-me of lt~ travel and Flgure 6 ~hows a ~lde vlew of the further keyboard support apparatus shown ln Flgure 3 at the other extreme of lts travel ; 1289520 Referring now to Figures 1 and 2 the keyboard support apparatus comprises two rods 1 and 2 which are supported by four brackets 3, 4, 5 and 6. Brackets 3 and 6 are fixed at corresponding ends of rods 1 and 2 respectively. Brackets 4 and 5 are slideably mounted on rods 1 and 2 respectively by sleeve mountlngs 7 and 8.
Rods 1 and 2 are interconnected by a keyboard ~ 1289520 mounting body 9. Mounting body 9 has two pairs of attaching members 10 and 11, and, 12 and 13, one pair on either side. The attaching members are penetrated by holes through which the rods 1 and 2 pass.
In use brackets 3, 4, 5 and 6 are attached, for instance by means of screws, to the underside of a supporting surface, for instance a desk top. Brackets 3 and 6 are fixed near the front of the desk, while brackets 4 and 5 may be fitted at any desired distance underneath the desk.
Keyboard mounting body 9 is then able to slide along the rods 1 and 2 between the front brackets 3 and 6 and the rear brackets 4 and 5. Positioning of the rear brackets 4 and 5 determines the extent of travel permitted.
Attaching members 10, 11, 12 and 13 of mounting body 9 are fitted with bushings 14 made of plastics material.
Bushings 14 ensure smooth and silent travel of the keyboard mounting body along the rods. Bushings 14 may be fitted with heads 15 of large diameter which may be partly recessed into the attaching members in order to provide a cushioning stop.
One of the front attaching members, for instance 13, may be penetrated by a threaded hole into which a threaded stem 16 may be inserted. The attaching members have a hexagonal section and the threaded hole penetrates one of the faces perpendicularly such that it subtends 30 from the horizontal. The stem 16 supports a large handgrip 17 by means of which an operator may tighten the stem against the side of the bushing 14. In this way keyboard mounting body 9 may be locked into any selected position. The fact that pressure is applied to rod 2 in order to lock it by means of bushing 14 prevents damage to the rod 2 by the end of stem 16. The locking operation may be improved by the provision of slots 18 in the side of the appropriate bushing 14. These allow greater flexibility in the bushing.
The snugness with which bushings 14 grip the rods 1 and 2 determines the speed with which mounting body 9 can be moved. This allows the operation to be effected by means of an ergonomically satisifying quanta of pressure applied by the operator.
Keyboard mounting block 9 may be perforated by holes to facilitate attachment of a keyboard. Preferably the holes are spaced according to the International furniture standards, which for example permits 32 mm between hole centres. Alterna~ively, rows of slots 19 may be provided, in this case the longitudinal axis of the slots are separated by, for instance, 32 mm.
Keyboard supporting members 20 and 21, to which the keyboard is attached may then be bolted into convenient holes or slots in the mounting body 9. The arrangement is such that the keyboard may be held either beneath the desk, when mounting body 9 is pushed back to rear brackets 7 and 8, or alternatively, in front of the desk, when mounting body 9 is pulled forward to front brackets 3 and 6. Of course any intermediate desired position is also 12~39520 available.
Referring now to Figures 3 to 6, another keyboard supporting apparatus is shown. In this apparatus, keyboard attaching bracket 22 to which a keyboard or shelf may be bolted, is connected to keyboard mounting block attaching bracket 23 by means of two parallel elongate members 24 and 25. Elongate member 24 is attached to bracket 23 by means of pivot pin 27, and attached to bracket 22 by means of pivot pin 26. Elongate member 25 is attached to bracket 23 by means of pivot pin 28, and is attached to bracket 22 by means of pivot pin 29 which resides in longitudinal slot 30 of elongate member 25.
A third elongate member 31 lnterconnects brackets 22 and 23.
Elongate member 31 ls attached to bracket 23 by means of plvot pin 27 and ls attached to bracket 22 by means of pivot pin 29 which engages ln longitudinal slot 32 of member 31.
Bracket 22 is connected at one side of the underside of a keyboard, and bracket 23 is connected at one side of the underside of keyboard mounting body 9 (for instance by bolts which pass through holes ln the overhang 35 of bracket 25 and through the holes or slots 19 of mountlng body 9). Further brackets 33 and 34 are connected at the other sldes of the keyboard and mounting body ln order to ~289520 "_ prevent rotation of the keyboard with respect to the mounting body. Brackets 33 and 34 are interconnected by a further elongate member 35 which is pivotally attached at either end by means of pivot pins 36 and 37 respectively.
An alternative arrangement would be to connect brackets 22 and 23 at the centres of the keyboard and keyboard mounting body, in which case brackets 33 and 34 could be dispensed with.
A cross member 38 provides the final degree of stability to the structure.
A comparison of Figures 5 and 6 will indicate that only a limited amount of pivotal movement is possible by elongate members 24 and 25 around pivot pins 27 and 28.
The precise amount of movement permitted is determined by the length of the slot 30. In Figure 6 it can be seen that bracket 22 may be tilted in a clockwise direction about pivot 26 an amount determined by the length of either slot 30 or slot 32.
It should be appreciated that rotation is possible by ~0 any desired amount between the two extreme positions shown in Figures 5 and 6 respectively. Also, at any intermediate position between the two extremes shown some degree of tilt is possible.
Pivot pin 29 is essentially a threaded bolt, that is at least some part of the pin which extends beyond the surface of elongate member 25 is threaded. A nut, preferably turnable by hand, may be tightened or loosened on the threaded portion of pivot pin 29 in order to clamp or release elongate members 25 and 31, and bracket 22.
This is illustrated in greater detail in Figure 4. It is an advantage of this arrangement that the structure may be adjusted to desired angle and tilt with one hand.
To facilitate operation and to counteract the weight of the keyboard a spring 39 may be provided connecting the elongate member 25 and bracket 22. Spring 39 comes under greater tension when bracket 22 is moved downwards with respect to bracket 23. That is when the arms of the ld spring are compressed together. This has the effect of returning the desktop to the horizontal.
A further spring 40, for instance a coil spring, may connect an overhang 35 of bracket 23 to elongate member 25. This spring also comes under greater tension when bracket 22 is moved downwards with respect to bracket 23.
The action of the spring therefore serves to return bracket 22 and therefore the keyboard, to its highest position.
Although the invention has been described with reference to a specific example, it will be appreciated by those skilled in the art that the invention may be embodied in many other forms. For instance, the invention has been described with reference to structures suitable for right-hand operation when mounted under the operator's desk, but it should be clear that left-handed operation is equally possible and may be facilited by mirror image construction. It is also feasilbe that dual-controls may be provided on either side of the structure, both or -- 12~39520 either of which may be used to control the movements. It should also be appreciated that the shapes of all the brackets and bodies ne~d not be limited to those shown. Also the elongate members and rods need not have the cross section shown.
This lnventlon relates to a support apparatus su$table, but not excluslvely, for ~upportlng an electronic keyboard from a desk.
Electronic keyboards are commonly used on desks ln offices and it is desirable to present the keyboard to the operator at a convenient positlon and orlentatlon. Owing to the wlde range in the requirements of keyboard oparators it is known to provide versatile keyboard supports which may be adJusted to present the keyboard in a convenient posltion and orlentatlon. Such keyboard supports suffer from the drawback ~hat they are cumbersome and dlfflcult to ad~ust. ~n partlcular it 18 ~ problem that ~fter the keyboard has been moved from its working posltlon, ln order for the desk to be used for another purpose, a lengthy ad~ustment procedure ls necessary before the keyboard can be returned to the optlmum worklng posltlon.
Accordlng to the pr-sent lnventlon, there 18 provlded a keyboard oupport pparatu- comprl-lng a first bracket and a ~econd bracket interconnected by first, second and third elongate members; said first and second elongate members being pivotally attached by means of a first pivot pin to said first bracket; said first elongate member being also pivotally attached by means of a second pivot pin to said second bracket; said third elongate member being pivotally attached by means of a third pivot pin to said first bracket; said cecond and third elongate members being pivotally attached with a ~289S2V
fourth pivot pin disposed on said ~econd bracket, and said fourth pivot pin being arranged so as to move relative to at least ene of ~aid second and third elongate members along an axially directed rectilinear path defined ~y ~aid at least one of said members and to releasably clamp said second and third elongate members in a preselected position; the arrangement being such that, in use, one of the first aad second brachets is connected to a supporting surface and the other to a keyboard, and the elongate members, when released from engagement with the second brac~et, are movable substantially in the same plane Preferred embodiments wlll now be descrlbed by way of example only wlth reference to the accompanylng drawlngs ln wh~ch Figure 1 shows a perspectlve vlew of a keyboard support apparatus Flgure 2 shows a plan vlew of the keyboard support apparatus shown ln Flgure 1:
Figuro 3 hows a perspoctive vlew of anoth-r keyboard Jupport apparatu8;
Flgure 4 shows a detall of part of the further keyboard support apparatus shown ln Figure 3 Figure 5 shows a ~lde vlew of the further k-yboard support apparatus shown ln Flgure 3 at one extr-me of lt~ travel and Flgure 6 ~hows a ~lde vlew of the further keyboard support apparatus shown ln Flgure 3 at the other extreme of lts travel ; 1289520 Referring now to Figures 1 and 2 the keyboard support apparatus comprises two rods 1 and 2 which are supported by four brackets 3, 4, 5 and 6. Brackets 3 and 6 are fixed at corresponding ends of rods 1 and 2 respectively. Brackets 4 and 5 are slideably mounted on rods 1 and 2 respectively by sleeve mountlngs 7 and 8.
Rods 1 and 2 are interconnected by a keyboard ~ 1289520 mounting body 9. Mounting body 9 has two pairs of attaching members 10 and 11, and, 12 and 13, one pair on either side. The attaching members are penetrated by holes through which the rods 1 and 2 pass.
In use brackets 3, 4, 5 and 6 are attached, for instance by means of screws, to the underside of a supporting surface, for instance a desk top. Brackets 3 and 6 are fixed near the front of the desk, while brackets 4 and 5 may be fitted at any desired distance underneath the desk.
Keyboard mounting body 9 is then able to slide along the rods 1 and 2 between the front brackets 3 and 6 and the rear brackets 4 and 5. Positioning of the rear brackets 4 and 5 determines the extent of travel permitted.
Attaching members 10, 11, 12 and 13 of mounting body 9 are fitted with bushings 14 made of plastics material.
Bushings 14 ensure smooth and silent travel of the keyboard mounting body along the rods. Bushings 14 may be fitted with heads 15 of large diameter which may be partly recessed into the attaching members in order to provide a cushioning stop.
One of the front attaching members, for instance 13, may be penetrated by a threaded hole into which a threaded stem 16 may be inserted. The attaching members have a hexagonal section and the threaded hole penetrates one of the faces perpendicularly such that it subtends 30 from the horizontal. The stem 16 supports a large handgrip 17 by means of which an operator may tighten the stem against the side of the bushing 14. In this way keyboard mounting body 9 may be locked into any selected position. The fact that pressure is applied to rod 2 in order to lock it by means of bushing 14 prevents damage to the rod 2 by the end of stem 16. The locking operation may be improved by the provision of slots 18 in the side of the appropriate bushing 14. These allow greater flexibility in the bushing.
The snugness with which bushings 14 grip the rods 1 and 2 determines the speed with which mounting body 9 can be moved. This allows the operation to be effected by means of an ergonomically satisifying quanta of pressure applied by the operator.
Keyboard mounting block 9 may be perforated by holes to facilitate attachment of a keyboard. Preferably the holes are spaced according to the International furniture standards, which for example permits 32 mm between hole centres. Alterna~ively, rows of slots 19 may be provided, in this case the longitudinal axis of the slots are separated by, for instance, 32 mm.
Keyboard supporting members 20 and 21, to which the keyboard is attached may then be bolted into convenient holes or slots in the mounting body 9. The arrangement is such that the keyboard may be held either beneath the desk, when mounting body 9 is pushed back to rear brackets 7 and 8, or alternatively, in front of the desk, when mounting body 9 is pulled forward to front brackets 3 and 6. Of course any intermediate desired position is also 12~39520 available.
Referring now to Figures 3 to 6, another keyboard supporting apparatus is shown. In this apparatus, keyboard attaching bracket 22 to which a keyboard or shelf may be bolted, is connected to keyboard mounting block attaching bracket 23 by means of two parallel elongate members 24 and 25. Elongate member 24 is attached to bracket 23 by means of pivot pin 27, and attached to bracket 22 by means of pivot pin 26. Elongate member 25 is attached to bracket 23 by means of pivot pin 28, and is attached to bracket 22 by means of pivot pin 29 which resides in longitudinal slot 30 of elongate member 25.
A third elongate member 31 lnterconnects brackets 22 and 23.
Elongate member 31 ls attached to bracket 23 by means of plvot pin 27 and ls attached to bracket 22 by means of pivot pin 29 which engages ln longitudinal slot 32 of member 31.
Bracket 22 is connected at one side of the underside of a keyboard, and bracket 23 is connected at one side of the underside of keyboard mounting body 9 (for instance by bolts which pass through holes ln the overhang 35 of bracket 25 and through the holes or slots 19 of mountlng body 9). Further brackets 33 and 34 are connected at the other sldes of the keyboard and mounting body ln order to ~289520 "_ prevent rotation of the keyboard with respect to the mounting body. Brackets 33 and 34 are interconnected by a further elongate member 35 which is pivotally attached at either end by means of pivot pins 36 and 37 respectively.
An alternative arrangement would be to connect brackets 22 and 23 at the centres of the keyboard and keyboard mounting body, in which case brackets 33 and 34 could be dispensed with.
A cross member 38 provides the final degree of stability to the structure.
A comparison of Figures 5 and 6 will indicate that only a limited amount of pivotal movement is possible by elongate members 24 and 25 around pivot pins 27 and 28.
The precise amount of movement permitted is determined by the length of the slot 30. In Figure 6 it can be seen that bracket 22 may be tilted in a clockwise direction about pivot 26 an amount determined by the length of either slot 30 or slot 32.
It should be appreciated that rotation is possible by ~0 any desired amount between the two extreme positions shown in Figures 5 and 6 respectively. Also, at any intermediate position between the two extremes shown some degree of tilt is possible.
Pivot pin 29 is essentially a threaded bolt, that is at least some part of the pin which extends beyond the surface of elongate member 25 is threaded. A nut, preferably turnable by hand, may be tightened or loosened on the threaded portion of pivot pin 29 in order to clamp or release elongate members 25 and 31, and bracket 22.
This is illustrated in greater detail in Figure 4. It is an advantage of this arrangement that the structure may be adjusted to desired angle and tilt with one hand.
To facilitate operation and to counteract the weight of the keyboard a spring 39 may be provided connecting the elongate member 25 and bracket 22. Spring 39 comes under greater tension when bracket 22 is moved downwards with respect to bracket 23. That is when the arms of the ld spring are compressed together. This has the effect of returning the desktop to the horizontal.
A further spring 40, for instance a coil spring, may connect an overhang 35 of bracket 23 to elongate member 25. This spring also comes under greater tension when bracket 22 is moved downwards with respect to bracket 23.
The action of the spring therefore serves to return bracket 22 and therefore the keyboard, to its highest position.
Although the invention has been described with reference to a specific example, it will be appreciated by those skilled in the art that the invention may be embodied in many other forms. For instance, the invention has been described with reference to structures suitable for right-hand operation when mounted under the operator's desk, but it should be clear that left-handed operation is equally possible and may be facilited by mirror image construction. It is also feasilbe that dual-controls may be provided on either side of the structure, both or -- 12~39520 either of which may be used to control the movements. It should also be appreciated that the shapes of all the brackets and bodies ne~d not be limited to those shown. Also the elongate members and rods need not have the cross section shown.
Claims (5)
1. A keyboard support apparatus comprising:
a first bracket and a second bracket interconnected by first, second and third elongate members; said first and second elongate members being pivotally attached by means of a first pivot pin to said first bracket; said first elongate member being also pivotally attached by means of a second pivot pin to said second bracket; said third elongate member being pivotally attached by means of a third pivot pin to said first bracket; said second and third elongate members being pivotally attached with a fourth pivot pin disposed on said second bracket, and said fourth pivot pin being arranged so as to move relative to at least one of said second and third elongate members along an axially directed rectilinear path defined by said at least one of said members and to releasably clamp said second and third elongate members in a preselected position; the arrangement being such that, in use, one of the first and second brackets is connected to a supporting surface and the other to a keyboard, and the elongate members, when released from engagement with the second bracket, are movable substantially in the same plane.
a first bracket and a second bracket interconnected by first, second and third elongate members; said first and second elongate members being pivotally attached by means of a first pivot pin to said first bracket; said first elongate member being also pivotally attached by means of a second pivot pin to said second bracket; said third elongate member being pivotally attached by means of a third pivot pin to said first bracket; said second and third elongate members being pivotally attached with a fourth pivot pin disposed on said second bracket, and said fourth pivot pin being arranged so as to move relative to at least one of said second and third elongate members along an axially directed rectilinear path defined by said at least one of said members and to releasably clamp said second and third elongate members in a preselected position; the arrangement being such that, in use, one of the first and second brackets is connected to a supporting surface and the other to a keyboard, and the elongate members, when released from engagement with the second bracket, are movable substantially in the same plane.
2. A keyboard support apparatus as claimed in claim 1 wherein:
the second and third elongate members each have a slot in which the fourth pivot pin resides.
the second and third elongate members each have a slot in which the fourth pivot pin resides.
3. A keyboard support apparatus as claimed in claim 2 wherein the fourth pivot pin is threaded to adjustably co-operate with a manually operable nut to releasably clamp the second and third elongate members.
4. A keyboard support apparatus as claimed in claim 1 in which a first spring interconnects said third elongate member and said second bracket such that the first spring comes under greater tension when the second bracket is moved downwards with respect to the first bracket.
5. A keyboard support apparatus as claimed in claim 4 in which a second spring interconnects an overhang of the first bracket and the third elongate member such that the second spring comes under greater tension when the second bracket is moved downward with respect to the first bracket.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AUPH783386 | 1986-09-04 | ||
| AUPH7833 | 1986-09-04 | ||
| AUPH8957 | 1986-11-14 | ||
| AUPH895786 | 1986-11-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1289520C true CA1289520C (en) | 1991-09-24 |
Family
ID=25643162
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000546107A Expired - Lifetime CA1289520C (en) | 1986-09-04 | 1987-09-03 | Keyboard support apparatus |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US5031867A (en) |
| EP (1) | EP0321494A4 (en) |
| CA (1) | CA1289520C (en) |
| NZ (1) | NZ221654A (en) |
| WO (1) | WO1988001481A1 (en) |
Families Citing this family (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5292097A (en) * | 1989-10-31 | 1994-03-08 | Russell Edwin R | Work surface support |
| KR920702958A (en) * | 1989-12-18 | 1992-12-17 | 마이클 존 코터릴 | Selectively controlled keyboard support |
| US5224677A (en) * | 1990-02-23 | 1993-07-06 | Hoyt-Close Products, Inc. | Pull down display and storage apparatus |
| CA2032603C (en) * | 1990-12-18 | 1995-09-12 | Edward Moore | Adjustable keyboard support |
| US5377951A (en) * | 1991-10-18 | 1995-01-03 | Engineered Data Products, Inc. | Adjustable computer workstation assembly and method therefore |
| US5294087A (en) * | 1991-10-18 | 1994-03-15 | Engineered Data Products, Inc. | Adjustable keyboard holder for computer workstation |
| US5437235A (en) * | 1993-06-10 | 1995-08-01 | Symbiote, Inc. | Computer work station |
| US5483898A (en) * | 1994-02-24 | 1996-01-16 | Krueger International | Tilting and sliding surface assembly for a table |
| US5490466A (en) * | 1994-03-15 | 1996-02-13 | Howe Furniture Corporation | Adjustable keyboard support |
| US6079676A (en) * | 1996-12-09 | 2000-06-27 | West Shore Services, Inc. | Adjustable mouse pad support |
| US5924664A (en) * | 1997-03-12 | 1999-07-20 | Ergo View Technologies Corp. | Keyboard support mechanism |
| US5940466A (en) * | 1997-10-29 | 1999-08-17 | Micron Electronics, Inc. | Apparatus for counting parts in a tray |
| US6082692A (en) * | 1997-11-13 | 2000-07-04 | Micron Electronics, Inc. | Method for supporting a first computer component relative to a second computer component |
| US6119994A (en) * | 1997-11-13 | 2000-09-19 | Micron Electronics, Inc. | Device for supporting a first computer component relative to a second computer component |
| US6480184B1 (en) | 1997-12-18 | 2002-11-12 | Micron Technology, Inc. | Apparatus for entering data into a computer |
| US6116557A (en) * | 1998-07-10 | 2000-09-12 | Acco Brands, Inc. | Keyboard support system |
| US6092774A (en) * | 1998-11-23 | 2000-07-25 | Acco Brands, Inc. | Keyboard positioning system |
| US6390432B1 (en) | 1999-03-05 | 2002-05-21 | Knape & Vogt Manufacturing Company | Adjustable and detachable mouse pad support and keyboard support having the same |
| US6454369B1 (en) | 1999-05-04 | 2002-09-24 | Accuride International, Inc. | Pull-out keyboard tray |
| US7086634B1 (en) | 2000-09-20 | 2006-08-08 | 3M Innovative Properties Company | Adjustable keyboard tray |
| US7013813B2 (en) * | 2002-02-27 | 2006-03-21 | Baral Holdings Corp. | Adjustable work surface support mechanism |
| WO2005041717A1 (en) | 2003-10-31 | 2005-05-12 | Baral Holdings Corp. | Adjustable work surface support |
| US20100308188A1 (en) * | 2009-06-08 | 2010-12-09 | Baral Holdings Corp. | Undermount for height adjustable work surface mechanism |
| US20120037051A1 (en) * | 2010-08-16 | 2012-02-16 | Pi-Liang Wang | Computer Table That Is Folded and Expanded Easily And Quickly |
Family Cites Families (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1662675A (en) * | 1926-12-09 | 1928-03-13 | Harry C Innes | Bed table attachment |
| FR709818A (en) * | 1931-01-13 | 1931-08-13 | Improvements to articulated drawing tables | |
| US3396931A (en) * | 1965-07-21 | 1968-08-13 | Emil L. Eckstein | Weight-balanced adjustable radiation apparatus |
| US3490727A (en) * | 1967-09-08 | 1970-01-20 | Harvey Q Miller | Holding apparatus for loads adapted to be strapped to the back of humans |
| US3667714A (en) * | 1970-08-14 | 1972-06-06 | Ziaylek Theodore Jun | Tank support |
| US3765676A (en) * | 1971-01-15 | 1973-10-16 | B Bearson | Adjustable basketball goals |
| DE2261733C3 (en) * | 1972-12-16 | 1982-01-14 | Robert Krause KG Zweigniederlassung Weilheim/Teck, 7315 Weilheim | Furniture fittings |
| FI54401C (en) * | 1977-07-12 | 1978-11-10 | Lival Oy Ab | LEDANORDNING VID BELYSNINGSARMATURER SAOSOM KONTORSLAMPOR |
| US4568052A (en) * | 1982-10-25 | 1986-02-04 | Esselte Pendaflex Corporation | Apparatus for supporting an object in a desired position |
| US4640062A (en) * | 1983-10-31 | 1987-02-03 | Kozponti Valto-Es Hitelbank Rt. | Framework truss with variable cantilever length |
| US4625657A (en) * | 1984-05-15 | 1986-12-02 | Weber-Knapp Company | Adjustable keyboard supporting mechanism |
| US4691888A (en) * | 1984-08-06 | 1987-09-08 | Cotterill Michael J | Keyboard support |
| US4644875A (en) * | 1985-03-22 | 1987-02-24 | Weber-Knapp Company | Adjustable keyboard supporting mechanism |
| CA1282451C (en) * | 1986-08-26 | 1991-04-02 | Lawrie Mcintosh | Retractable work station |
| US4706919A (en) * | 1986-12-17 | 1987-11-17 | Haworth, Inc. | Keyboard support with automatic lowering mechanism |
-
1987
- 1987-08-27 WO PCT/AU1987/000289 patent/WO1988001481A1/en not_active Application Discontinuation
- 1987-08-27 US US07/332,455 patent/US5031867A/en not_active Expired - Lifetime
- 1987-08-27 EP EP19870905924 patent/EP0321494A4/en not_active Withdrawn
- 1987-09-02 NZ NZ221654A patent/NZ221654A/en unknown
- 1987-09-03 CA CA000546107A patent/CA1289520C/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| US5031867A (en) | 1991-07-16 |
| EP0321494A1 (en) | 1989-06-28 |
| EP0321494A4 (en) | 1990-10-24 |
| WO1988001481A1 (en) | 1988-03-10 |
| NZ221654A (en) | 1990-12-21 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKLA | Lapsed |