EP0506718A1 - Systeme de support pour clavier a commande selective - Google Patents

Systeme de support pour clavier a commande selective

Info

Publication number
EP0506718A1
EP0506718A1 EP91900684A EP91900684A EP0506718A1 EP 0506718 A1 EP0506718 A1 EP 0506718A1 EP 91900684 A EP91900684 A EP 91900684A EP 91900684 A EP91900684 A EP 91900684A EP 0506718 A1 EP0506718 A1 EP 0506718A1
Authority
EP
European Patent Office
Prior art keywords
support member
bar
formation
mounting bracket
formations
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.)
Granted
Application number
EP91900684A
Other languages
German (de)
English (en)
Other versions
EP0506718A4 (en
EP0506718B1 (fr
Inventor
Michael John Cotterill
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from US07/452,048 external-priority patent/US4988066A/en
Application filed by Individual filed Critical Individual
Publication of EP0506718A1 publication Critical patent/EP0506718A1/fr
Publication of EP0506718A4 publication Critical patent/EP0506718A4/en
Application granted granted Critical
Publication of EP0506718B1 publication Critical patent/EP0506718B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • A47B21/02—Tables or desks for office equipment, e.g. typewriters, keyboards with vertical adjustable parts
    • 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

Definitions

  • This invention relates to an apparatus suitable, but not exclusively, for use in supporting a processor, typewriter or an electronic keyboard.
  • the keyboard support is not only able to be adjusted in altitude but is also able to be adjusted in attitude (i.e. angle of tilt).
  • Controls for adjustment of keyboard support elevation should be accessible and convenient for the operator both in respect of location and ease of operation. Desirably adjustment of altitude and/or tilt could be accomplished with one hand and without risk of damage to long fingernails.
  • the support and adjustment mechanisms should be robust and capable of withstanding overload such as a person sitting or leaning on the support. Quick, positive, secure and convenient locking of the support at a desired height and/or at a desired angle would be advantageous.
  • a threaded bolt and handle are used to clamp the parts at a particular altitude, and if tilt adjustment is provided a separate threaded bolt and handle are provided to clamp the parts at a specific angle of tilt.
  • Patent 581,471 describes apparatus having a mounting bracket adapted to be secured to a desk, a keyboard support member, linkage bars pivotally mounted to the mounting bracket and to the support member whereby the support member is adapted for movement between a raised or lowered position relative to the mounting bracket and locking means for immobilizing the apparatus against such movement.
  • the locking means is a clamp assembly whereby the linkage bar is clamped to the support member by a threaded bolt extending through the bar and support member and cooperating with a threaded handle.
  • That apparatus is convenient to use but relies upon the clamping force and friction between the parts for locking and if either is inadequate there is a risk of damage to equipment or injury to the user.
  • An object of the present invention is to provide a keyboard support apparatus which avoids at least some of the disadvantages of prior art and/or which meets the desiderata discussed above by more efficient means than prior art.
  • An object of preferred embodiments of the present invention is provision of a keyboard height adjustment mechanism which is simple, positive in locking, reliable and robust.
  • a further object of preferred embodiments is provision of a locking means for a keyboard support apparatus which allows selection between (a) a first mode in which tilt adjustment is permitted and altitude adjustment is prevented, (b) a second mode in which altitude adjustment is permitted and tilt adjustment is prevented and (c) a third mode in which both tilt and altitude adjustment are prevented.
  • the invention consists in a keyboard support apparatus of the kind having a mounting bracket " , a support member, at least one linkage bar pivotally connected to the mounting bracket and to the support member whereby the support member and bar are adapted for movement in a vertical reference plane between a raised or lowered position relative to the mounting bracket and locking means for immobilizing the apparatus against said movement;
  • the locking means comprising first means defining a first formation associated with the support member; second means defining a second formation associated with the bar; said formations being inter-engageable to prevent movement of the bar relative to the support member, lever means acting to disengage said formations by lateral movement of the first means relative to the second means, and resilient means biasing said formations into inter-engagement.
  • a lever is mounted to the support bracket via a spring metal plate.
  • the plate lies in a vertical plane but is resiliently deformable to allow lateral movement of the lever at an angle to the vertical reference plane.
  • the plate defines a plurality of aperture formations associated with the support member.
  • a pin formation associated with the bar when the spring plate is in a relaxed state is engageable with a selected aperture formation of the plate to lock the mechanism.
  • the pin and aperture formations are disengageable by lateral movement of the lever.
  • the support member is adapted for movement between a first attitude and a second attitude, the locking means being provided with third formations associated with the bar selectively inter-engageable by the lever with fourth formations to lock the support member against tilt adjustment.
  • Figure 1 shows schematically a keyboard support apparatus viewed in side elevation in a raised position
  • Figure 2 shows schematically the keyboard support apparatus of Figure 1 in a lowered position
  • Figure 3 shows schematically the keyboard support apparatus of Figure 1 viewed from the front;
  • Figure 4 shows the apparatus of Figure 1 in plan viewed from beneath;
  • Figure 5 shows in side view a portion of the apparatus of figures 1 and 2 equipped with locking means in accordance with the invention
  • Figure 6 shows plate 30 of Figure 5 in detail
  • Figure 7 shows a section on line A-A of Figure 5;
  • Figure 8 shows a section on line B-B of Figure 5;
  • Figure 9 shows in schematic perspective a second embodiment of the invention.
  • Figure 10 shows in more detail a part of Figure 9
  • Figure 11 shows schematically a third embodiment of the invention viewed in elevation wherein the support bracket is adapted for change in attitude (tilt);
  • Figure 12 shows schematically the embodiment of Figure 11 when viewed in plan
  • Figure 13 shows schematically a portion of a fourth embodiment of the invention viewed in elevation
  • Figure 14 shows schematically an assembly of the portion of Figure 13 with additional parts
  • Figures 15 A, B, C show schematically the embodiment of Figure 14 viewed in plan in various modes of operation;
  • Figure 16 shows a fifth embodiment of the invention in side elevation
  • Figure 17 shows the embodiment of Figure 16 in exploded plan view.
  • Figure 18 is a schematic drawing showing a sixth embodiment of the invention. PREFERRED EMBODIMENTS OF THE INVENTION
  • a mounting bracket 10 comprises a vertical plate 11 and horizontal flange 12 whereby the mounting bracket may be mounted by fasteners to, for example, the underside of a desk top 13.
  • a support member 14 comprises a vertical plate 15 and a horizontal flange 16 which in use has a keyboard or keyboard supporting platform (not shown) fastened thereto.
  • a first linkage bar 20 is pivotally connected by means of pivot pin 21 to bracket vertical plate 11 and is pivotally connected by means of pivot pin 22 to vertical plate 15 of support member 14.
  • First linkage bar 20 has an extension 23 beyond pivot pin 22 to an extremity 24.
  • a second linkage bar 25 is pivotally connected by means of pivot pin 26 to mounting bracket plate 11 and is pivotally connected by means of pivot pin 27 to plate 15 of support member 14.
  • the pivot pins may be rivets or other suitable fasteners and are parallel.
  • Bars 20 and 25 are parallel and the distance between pivot pins 21, 22 corresponds to that between pivot pins 26, 27 so that the mounting bracket, support member, first and second bars together constitute a four bar linkage or pantograph.
  • the arrangement permits the support member to be swung upwardly or downwardly with respect to the work surface while maintaining a constant inclination of the support member upper surface relative to the plane of the work surface.
  • a bar 25 and the support member 14 were clamped together e.g. by a threaded bolt and cooperating threaded or handle or star wheel, for example by means of a bolt acting as pivot pin 27.
  • a plate 30 (figures 5 to 8) made of spring steel and mounted to vertical plate 15 of mounting member 14 by means of pivot pin rivets 22, 27. Rivet heads 31, 32 of pivot pins 22, 27 are most clearly seen in Figure 7. Plate 30 is mounted on the side of bar 20 opposite to mounting member 14 so that the extension 23 of bar 20 is sandwiched with clearance between plate 30 and plate 15.
  • Plate 30 is shown in Figure 6 and has mounting apertures 34 and 35 and has a plurality of pin engaging apertures or slots 33 which are disposed on an arc, at a predetermined radius from aperture 34. Plate 30 is located by means of apertures 34, 35 on pivot pins 22, 27 respectively. Plate 30 has apertures 36 and 37 whereby the plate may be riveted to handle 40.
  • the outermost side of plate 30 is provided with a lever handle 40 secured to plate 30 by rivets 41, 42 extending through handle 40 and apertures 36, 37.
  • handle 40 acts as a lever having a fulcrum at pin 22 but adapted for lateral movement at its free end sideways towards or away from the plane of plate 15 of support member 14.
  • Plate 30 is resiliently biased towards a plane parallel to plate 15 but is able to be deformed on line A-A to an angle therefrom.
  • plate 30 may, in its relaxed state, have a bend at an angle of from 2° to 4° from the plane [about line D-D in Figure 6] whereby the plate is given a bias to urge plate 30 towards member 20.
  • Extension 23 is provided with a pin 49 which extends laterally (parallel to the axis of pivot pin 25) towards plate 30 and is engageable with a selected one of apertures 33 of plate 30.
  • Pivot pins 25, 27 may be provided with washers 42 as desired.
  • lever handle 40 In use if it is desired to move the support means from a first altitude to a second altitude, lever handle 40 is moved laterally to the side whereby plate 30 is resiliently bent or deformed at the fulcrum line A-A extending through pivot pins 22, 27 plate 30 moving away from bar 20 and support member plate 15. As plate 30 moves at an angle from bar 20, pin 49 is disengaged from apertures 33. The support member may then be raised or lowered as desired. Lever handle 40 may then be released to move plate 30 towards plate 15, allowing pin 49 to engage a selected other hole 33, pin 49 being held in engagement with hole 33 by spring plate 30 which resiliently returns to a position parallel to, and adjacent bar 20.
  • inter-engageable formations other than a pin and aperture may be employed. Also if desired two or more pins may engage two or more holes.
  • pivot pin 22 extends through a slot in bar 20 and a spring 19 acts between bar 20 and pin 22.
  • a collar 53 is stepped to a reduced diameter boss 55 adjacent bar 22 and is thread mounted to the bar.
  • a lever handle 40 is riveted at 51 to a "U" shaped spring steel bracket 52 which is pivotally mounted to bar 22 by means of boss 55 which extends through an aperture of one arm 56 of bracket 52 and retains the arm between collar 53 and bar 22.
  • a pin 49 extends axially through collar 53 and boss 55.
  • One pin end 58 is tapered and projects through bar 22 to engage in an aperture 54 or slot of plate 15.
  • Pin 49 is reduced in diameter adjacent its other end, the portion of reduced diameter 59 extending successively through an aperture in the other arm 57 of bracket 52 through a slot 60 of lever handle 40, through an "0" ring 61, and terminating at a threaded retaining nut 62.
  • Lever 40 is thus mounted for pivotal movement about the axis of pin 49 and is moveable laterally by resilient deformation of bracket 52 to withdraw pin 49 from engagement with an aperture of plate 15.
  • bracket 52 is rigid and a compression spring acts axially on pin 41 to urge it into engagement with a selected hole 54.
  • At least one of bars 20, 25 is, or is associated with, a hollow duct (not illustrated) the duct being adapted to conduct a keyboard cable from a keyboard supported upon support member 14.
  • the duct may for example be a square section hollow tube welded to bar 20, or bar 20 may itself be of hollow section.
  • the duct should be of sufficiently large internal dimension to enable the plug or socket terminating a keyboard cable to be threaded through the duct.
  • the duct should convey the cable to a location near the leading edge of the rear brackets from where the cable may be connected to a computer, VDU, etc., as required.
  • the duct serves to keep the cabling tidy and prevents it from becoming jammed in the mechanism or inadvertently unplugged.
  • FIG. 11 there is shown an embodiment wherein the lower bar 25 of the four bar linkage is provided at or adjacent bar end 71 with an elongate slot 70 extending in the bar longitudinal direction.
  • Bar 25 is connected with support bracket 15 by means of pivot pin 27 extending through the slot 70.
  • Pin 27 cooperates with slot 70 and bracket 15 to allow bracket 15 to tilt pivotally about the axis of pin 22.
  • Spring steel plate 30 is pivotally mounted to bars 20, 25 by means of pins 22 and 27. Spring plate 30, when released lies in a plane parallel to the vertical reference plane. Lever 40 is mounted to plate 30 e.g. by rivets 41 and 42.
  • Plate 30 is provided with a plurality of circular first apertures 33 disposed with centres on a first arc, a plurality of second apertures 33a disposed with centres on a second arc and a plurality of apertures 33b disposed on a third arc concentric with the first and second arc.
  • Pin formation 49 mounted on bar 25 extends laterally and is inter-engageable with a selected aperture 33, 33A, 33B of spring plate 30. Desirably, pin 49 is chamfered at a distal end to facilitate precise insertion in an aperture 30, 30A, 30B of spring plate 30.
  • lever 40 if lever 40 is moved from neutral position N (in which spring plate 30 is released) in the direction indicated by arrow B, spring plate 30 is bent on line A-A, the free end 72 of plate 30 is moved in the direction indicated by arrow C, disengaging pin 49 from aperture 33.
  • lever handle 40 may be moved upwards or downwards thereby to raise or lower support bracket 15.
  • Lever 40 is resiliently urged by spring plate 30 towards neutral position N and, when lever 40 is released, spring plate 30 returns to a plane parallel to the reference plane. Pin 49 may then be re-engaged with a conveniently-located aperture 33. If the altitude is altered without tilt adjustment, pin 49 will relocate in an aperture of the same arc as that from which it was disengaged.
  • lever 40 is moved laterally from neutral position N in direction B to disengage pin 49 from aperture 33 of plate 30 as described above.
  • Lever 40 may then be moved arcuately so as to adjust attitude (i.e. tilt) of keyboard support 15 by pivotal movement about pin 22.
  • Lever 40 is then resiliently urged towards the neutral position by spring plate 30 to re-engage pin 49 with an aperture of plate 30.
  • pin 49 will engage an aperture in an arc different from that in which it was previously engaged e.g. will disengage from an aperture 33 and re-engage an aperture 33A or 33B.
  • both altitude and attitude may be adjusted concurrently using one hand to move lever 40 both to engage or disengage pin 49 from an aperture of plate 30; to raise, lower or tilt the keyboard support, and to relock the mechanism against movement.
  • FIG. 13 With reference to figures 13, 14, 15, there is shown a fourth embodiment of the invention in which parts having a function corresponding to parts of figures 11, 12 are indicated by corresponding numerals.
  • the embodiment of figures 13 to 15 has a curvilinear slot 70 adapted to cooperate with pin 27 to permit tilt of bracket 15 about pivot 22.
  • the embodiment of Figure 13 also differs from that of figure 11, 12 in that spring steel plate 30 in its relaxed state extends to both sides of fulcrum line A-A, in a plane parallel the reference plane.
  • Spring plate 30 has a portion 30A extending to free edge 72.
  • Portion 30A has a plurality of elongate slots 33 arranged on lines extending radially from pivot pin 27.
  • Spring plate 30 also has a portion 30B extending to free edge 73 on the opposite side of line A-A from edge 52.
  • Spring plate 30B is provided with slots 74.
  • a spring arm 75 is mounted to spring plate 30A adjacent edge 72 by means of rivets 76 extending through apertures 77. Spring arm 75 extends to a free end 78 adjacent edge 73 of plate 30B.
  • Cranked lever 40 is mounted to spring arm 75 by means of rivets 41 and 42 spaced astride fulcrum line A-A.
  • Spring plate 30B is deformed so as to disengage pin 49 from aperture 33 of spring plate 30A. In that configuration altitude adjustment may be made by moving lever 40 upwardly or downwardly. However, engagement of pin 79 with an aperture 74 of spring plate 30B maintains support bracket 15 at a predetermined angle of tilt.
  • the embodiment of figures 13 to 15 thus allows single handed raising or lowering of the keyboard at a predetermined angle of tilt following a small movement of lever 40 in direction C.
  • the embodiment also allows a single handed tilting of the keyboard at a predetermined altitude following a slight movement of lever 40 in direction D.
  • the lever is resiliently biased towards neutral position N in which the keyboard is locked against movement in either altitude or attitude.
  • the construction of the adjustment mechanism is robust, the spring plate being of about 1.2mm to 2.0mm in thickness.
  • bracket 15 is provided with a slot 80 and lever 40 has a pin 81 adjustable eccentrically about a pin axis to maintain the lever handle in a constant relationship to bracket 15 and to facilitate positive action of the lever when adjusting tilt or height while allowing lateral movement of the lever arm.
  • spring plate 30 is of greater resiliency than spring arm 75.
  • spring plates 30A and 30B may be separate plates rather than parts of one plate as illustrated. The parts may be connected one to another by means different from those described.
  • spring arm 75 is provided with an angle of bend in its relaxed state whereby formation 79 is urged towards interengagement.
  • the apparatus herein described is simple and relatively inexpensive to manufacture. provides positive engagement or disengagement on locking, is convenient for use by an operator in a seated or "user" position and is unobtrusive in appearance.
  • the apparatus of figures 13 to 15 may also be used for adjustment, for example, of a hospital bed tray by a person in a prone position using one hand.
  • FIGs. 16 and 17 there is shown a fifth embodiment of the invention. Parts of the embodiment of Figs. 16 and 17 which correspond in function to parts of the embodiment of Figs. 1 to 8 are identified by corresponding numerals.
  • Figs. 16 and 17 differs from that of Figs. 1 to 8 in that there is added a third linkage bar 80 which is pivotally connected to mounting bracket 11 by means of pivot pin 81 and is pivotally connected to keyboard support bracket 15 by pivot pin 27.
  • Third linkage bar 80 is not parallel to the first and second linkage bars but extends diagonally at an angle thereto.
  • Pivot pin 81 is received in an elongate slot 83 defined in third linkage bar 80.
  • Pin 81 and slot 83 co-operate to accommodate movement in third linkage bar 80 relative to mounting bracket 11 as support bracket 15 is raised and lowered.
  • Pin 81 is mounted eccentrically with respect to the pin axis to enable easy adjustment, thereby avoiding the need for close manufacturing tolerances.
  • the interengageable formation 49 which in previously described embodiments was associated with linkage bar 25, is now mounted to third linkage bar 80.
  • the embodiment of figures 16 and 17 has a number of important practical advantages in comparison with that of figures 1 to 8 and is greatly preferred.
  • keyboard support mechanisms need to be of extremely accurate construction to maintain correct alignment of the keyboard support bracket 15 with a desk 13 or other mounting surface. If any of pivot hole centres 21, 22, 26, 27 in either of linkage bars 20, 25 or brackets 11, 15 are inaccurately drilled, the errors may be compounded and result in the upper surface of brackets 11, 15 being misaligned. Moreover even the slightest error in the pivot pin locations of the first and second linkage bars interferes with correct pantagraphic movement of the mechanism or results in excessive wear, the mechanisms either binding or soon becoming sloppy.
  • interengageable formation 49 is associated with one of the parallel linkage bars 20, 21 the requirements of close machine tolerances not only of the pantagraphic system but additionally of formation 49, plate 30 and apertures 33 become very substantial.
  • the fifth embodiment by associating interengageable formation 49 with a third linkage bar 80 greatly facilitates adjustment of engagement as between formation 49 and any one of apertures 33 and makes that adjustment independent of any adjustment of parallel linkage bars 20 and 25.
  • the third linkage bar 80 may extend diagonally from pivot pin 21 to pivot pin 27 and need not have a separate pivotal mounting pin 81. In that case slot 26 will desirably be curved.
  • the linkage bar 80 may be adapted for slotted engagement with pin 27 instead of with pin 81.
  • a suitably shaped third linkage bar may extend diagonally from pin 26 or pin 81 to pin 22. In the embodiment of Figs.
  • FIG. 18 there is shown a sixth embodiment which differs from that of figures 16 and 17 in that plate 30 is mounted for pivotal rotation about pivot pin 22.
  • Third linkage bar 80 extends diagonally from pivot pin 21 (not shown in Figure 18) to a pivot pin 85.
  • bar 80 is not slotted and acts as a drag link to rotate plate 30 about pivot 22, as bracket 15 is raised or lowered.
  • Lower bar 25 is pivotally connected at pin 27 to bracket 15 but pin 27 does not extend to connect with plate 30 or bar 80.
  • Pivot pin 85 at one end of linkage bar 80 (and/or pivot pin 21 at the opposite end of linkage bar 80) may be mounted by eccentric means permitting adjustment of the pivotal axis.
  • formations 49 may be lugs press formed outwardly from the material of bracket 15 selectively to engage slots 74 of plate 30.
  • a handle (not illustrated in Figure 18) extending in a forward direction is provided to resiliently deform plate 30 as previously described whereby slots 74 of plate 30 may be engaged with or disengaged from lugs 49.
  • a handle may be connected at or adjacent the unsupported end of plate 30 and extending in a lateral direction to achieve the same result.

Landscapes

  • Input From Keyboards Or The Like (AREA)
  • Push-Button Switches (AREA)
  • Electrophonic Musical Instruments (AREA)
  • Selective Calling Equipment (AREA)
  • Casings For Electric Apparatus (AREA)

Abstract

Un système de support de clavier possède un support de montage (11), une potence de support de clavier (15) conçue pour pivoter au moyen de barres parallèles (20, 25) permettant de modifier la hauteur de la potence (15). Le mécanisme peut être bloqué pour empêcher toute modification de hauteur au moyen d'un ensemble (58) associé à une barre (20) pouvant s'interconnecter avec un ensemble (54) associé à la potence (15) au moyen d'un levier actionnable latéralement (40) monté élastiquement sur une lame de ressort (52) pour s'enclencher. Dans un mode préférentiel de réalisation (figures 13 à 15) la potence (15) peut basculer autour d'un pivot (22) et le mécanisme autorise une simple opération sélective de réglage de hauteur ou d'inclinaison.
EP91900684A 1989-12-18 1990-12-17 Systeme de support pour clavier a commande selective Expired - Lifetime EP0506718B1 (fr)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US07/452,048 US4988066A (en) 1988-07-18 1989-12-18 Selectively controlled keyboard support
US452048 1989-12-18
AU22/91 1990-09-14
AUPK229190 1990-09-14
PCT/AU1990/000595 WO1991008694A1 (fr) 1989-12-18 1990-12-17 Systeme de support pour clavier a commande selective

Publications (3)

Publication Number Publication Date
EP0506718A1 true EP0506718A1 (fr) 1992-10-07
EP0506718A4 EP0506718A4 (en) 1994-06-29
EP0506718B1 EP0506718B1 (fr) 1998-02-25

Family

ID=25643941

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91900684A Expired - Lifetime EP0506718B1 (fr) 1989-12-18 1990-12-17 Systeme de support pour clavier a commande selective

Country Status (8)

Country Link
EP (1) EP0506718B1 (fr)
JP (1) JPH05502599A (fr)
KR (1) KR920702958A (fr)
AT (1) ATE163348T1 (fr)
CA (1) CA2071553C (fr)
DE (1) DE69032072T2 (fr)
SG (1) SG44562A1 (fr)
WO (1) WO1991008694A1 (fr)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU7630591A (en) * 1990-11-29 1992-06-04 Michael John Cotterill Keyboard apparatus adjustment means
US5588375A (en) * 1992-05-19 1996-12-31 Cotterill; Michael J. Mounting track
US6121489A (en) * 1996-03-05 2000-09-19 Trega Biosciences, Inc. Selectively N-alkylated peptidomimetic combinatorial libraries and compounds therein
AUPP355898A0 (en) * 1998-05-19 1998-06-11 Russell, Edwin Robin Adjustable support mechanism - II
US6362342B1 (en) 1999-06-29 2002-03-26 Lion Bioscience Ag Triazole compounds and methods of making same
US6861523B2 (en) 2002-02-08 2005-03-01 Torrey Pines Institute For Molecular Studies 1,3,5- trisubstituted-1,3,5-triazine-2,4,6-trione compounds and libraries

Citations (2)

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Publication number Priority date Publication date Assignee Title
US4691888A (en) * 1984-08-06 1987-09-08 Cotterill Michael J Keyboard support
WO1988001481A1 (fr) * 1986-09-04 1988-03-10 Cotterill Michael J Dispositif de support de clavier

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CH99489A (de) * 1921-11-26 1923-06-01 R Staeubli Auslegetisch.
US1491781A (en) * 1922-04-10 1924-04-29 John L Axen Desk
CH162103A (de) * 1932-05-11 1933-06-15 Schweiz Bureaumoebelfabrik Ruc Tisch mit ausschwenkbarem Hilfstisch.
CH255365A (de) * 1946-10-28 1948-06-30 Neidhart Hermann Hilfstischchen an Möbeln.
US3425761A (en) * 1967-05-29 1969-02-04 Standard Pressed Steel Co Typewriter desk mechanism
CA1282451C (fr) * 1986-08-26 1991-04-02 Lawrie Mcintosh Poste de travail escamotable

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Publication number Priority date Publication date Assignee Title
US4691888A (en) * 1984-08-06 1987-09-08 Cotterill Michael J Keyboard support
WO1988001481A1 (fr) * 1986-09-04 1988-03-10 Cotterill Michael J Dispositif de support de clavier

Non-Patent Citations (1)

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Title
See also references of WO9108694A1 *

Also Published As

Publication number Publication date
SG44562A1 (en) 1997-12-19
DE69032072D1 (de) 1998-04-02
EP0506718A4 (en) 1994-06-29
JPH05502599A (ja) 1993-05-13
DE69032072T2 (de) 1998-10-01
EP0506718B1 (fr) 1998-02-25
ATE163348T1 (de) 1998-03-15
CA2071553A1 (fr) 1991-06-19
CA2071553C (fr) 2000-06-06
KR920702958A (ko) 1992-12-17
WO1991008694A1 (fr) 1991-06-27

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