EP0247328B1 - Chaise tournante et réglable en hauteur, comportant un ressort pneumatique, notamment chaise ou fauteuil de bureau - Google Patents

Chaise tournante et réglable en hauteur, comportant un ressort pneumatique, notamment chaise ou fauteuil de bureau Download PDF

Info

Publication number
EP0247328B1
EP0247328B1 EP87104799A EP87104799A EP0247328B1 EP 0247328 B1 EP0247328 B1 EP 0247328B1 EP 87104799 A EP87104799 A EP 87104799A EP 87104799 A EP87104799 A EP 87104799A EP 0247328 B1 EP0247328 B1 EP 0247328B1
Authority
EP
European Patent Office
Prior art keywords
tube
chair according
rotatable chair
frame
back rest
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
Application number
EP87104799A
Other languages
German (de)
English (en)
Other versions
EP0247328A1 (fr
Inventor
Heinzel Dipl.-Ing. Eberhard
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.)
Kusch and Co Sitzmoebelwerke GmbH and Co KG
Original Assignee
Kusch and Co Sitzmoebelwerke GmbH and Co KG
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
Application filed by Kusch and Co Sitzmoebelwerke GmbH and Co KG filed Critical Kusch and Co Sitzmoebelwerke GmbH and Co KG
Priority to AT87104799T priority Critical patent/ATE59761T1/de
Publication of EP0247328A1 publication Critical patent/EP0247328A1/fr
Application granted granted Critical
Publication of EP0247328B1 publication Critical patent/EP0247328B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C1/00—Chairs adapted for special purposes
    • A47C1/02—Reclining or easy chairs
    • A47C1/031—Reclining or easy chairs having coupled concurrently adjustable supporting parts
    • A47C1/032—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest
    • A47C1/03205—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest having adjustable and lockable inclination
    • A47C1/03238—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest having adjustable and lockable inclination by means of peg-and-notch or pawl-and-ratchet mechanism
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C1/00—Chairs adapted for special purposes
    • A47C1/02—Reclining or easy chairs
    • A47C1/031—Reclining or easy chairs having coupled concurrently adjustable supporting parts
    • A47C1/032—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest
    • A47C1/03255—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest with a central column, e.g. rocking office chairs
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C1/00—Chairs adapted for special purposes
    • A47C1/02—Reclining or easy chairs
    • A47C1/031—Reclining or easy chairs having coupled concurrently adjustable supporting parts
    • A47C1/032—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest
    • A47C1/03261—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest characterised by elastic means
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C1/00—Chairs adapted for special purposes
    • A47C1/02—Reclining or easy chairs
    • A47C1/031—Reclining or easy chairs having coupled concurrently adjustable supporting parts
    • A47C1/032—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest
    • A47C1/03261—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest characterised by elastic means
    • A47C1/03277—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest characterised by elastic means with bar or leaf springs
    • A47C1/03279—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest characterised by elastic means with bar or leaf springs of torsion type
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C3/00—Chairs characterised by structural features; Chairs or stools with rotatable or vertically-adjustable seats
    • A47C3/20—Chairs or stools with vertically-adjustable seats
    • A47C3/30—Chairs or stools with vertically-adjustable seats with vertically-acting fluid cylinder

Definitions

  • the invention relates to a swivel chair of the type specified in the preamble of claim 1, as described for example in DE-A-31 39 448.
  • DE-GM 84 17 429 discloses a "point synchronous adjustment device" with which this disadvantageous effect is to be avoided.
  • an elaborate and, above all, voluminous mechanism is provided under the seat, which also does not make the design of the chair or armchair appealing.
  • This also applies to the arrangement according to DE-A-31 39 448, where the adjustment and rocking mechanism sits in an upwardly open U-profile bracket.
  • the invention has for its object to cope with a relatively simple, compact and closed rocking or inclination adjustment mechanism, the problem of the "pull-out effect", wherein the valve actuation mechanism for the height adjustment by the gas pressure spring is accommodated in the same compact manner.
  • the swivel chair according to the invention offers, thanks to the rocking axes of the seat and backrest, which are shifted far forward, an optimal synchronous movement to avoid the "pull-out effect" with space-saving and a completely new and stable chair design, which enables the overall mechanism to be accommodated, in which no bellows to cover any crushing or shearing points is needed.
  • the supporting structure which consists exclusively of inexpensive steel tubes, serves as the base frame for an entire model family, i.e. from the typist chair to the heavy executive chair.
  • the lower end of a support tube (3) which is bent at an obtuse angle, is slidably and rotatably guided on a support tube (2) which is firmly connected to a base (1) of the swivel chair, a plastic bushing (4) between the support tube (2) and the support tube (3). is provided for guidance and additional support.
  • the standpipe (2) receives a gas pressure spring (6) on the inside in a plastic guide sleeve (5), which is supported at the bottom in the standpipe (2) on an axial pressure bearing (7) and with a cone (8) in a cone bushing (9 ) is seated, which is welded at (10) through a bore to the support tube (3) and at (11) with an insert tube (12) welded into the lower end of the support tube (3).
  • a cross tube (13) is firmly connected to the upper end of the support tube (3).
  • the support tube (3) and the cross tube (13) are cut out and welded together so that the clear cross section of both tubes (3, 13) is not constricted at any point by this connection.
  • the cross tube (13) runs perpendicular to the support tube (3) and lies horizontally.
  • a guide block (14) is fastened with screws (15) in the support tube (3).
  • a locking bolt (16) is slidably mounted, which engages in a rack (19) for fixing an inclined position of a seat frame (17) and a backrest frame (18), which in the embodiment of FIGS. 1 and 2 is fastened to a crossbar (20) of the seat frame (17) and projects into the support tube (3) via an opening (21).
  • the toothed rack (19) has a longer tooth (22) at the free inner end which, when the locking bolt (16) is withdrawn, abuts against it, so that the toothed rack (19) is not completely pulled out of the opening (21) of the support tube (3) can.
  • the release movement of the locking bolt (16) is limited by a leaf spring (23) which can be pushed away with a screwdriver or the like when the mechanism is removed.
  • the locking bolt (16) is connected via a connecting rod (24) to a lever (25) on a shaft (26) which is mounted in bearing blocks (27, 28) within the left side of the cross tube (13) and one at the outer end Actuating lever (not shown here) that is accessible at the front left under the seat frame (17).
  • bearing blocks (27, 28) In the right side of the cross tube (13) there are further bearing blocks (29, 30) in which a further shaft (31) aligned with the shaft (26) is mounted, which shaft belongs to the actuating mechanism for the height adjustment of the chair.
  • a lever (32) at the inner end of the shaft (31) is connected via a connecting rod (33) to an angle lever (34) which is mounted at the rear end of the guide block (14) and which is accessible under the seat when actuated at the front right Actuating lever (35) (Fig. 2) presses on a tappet (36) of the valve of the gas pressure spring (6) to release it for height adjustment.
  • the seat frame (17) has bearing eyelets (37) on both sides at the front end, which are rotatably mounted on pins (38) that can be screwed into the outer bearing blocks (27, 29).
  • the axis for the pivot mounting of the backrest frame (18) in the bearing blocks (27-30) is formed by two torsion springs (39), each of which is fixed with a long spring leg (40) in an associated tube of the lower part of the backrest frame (18) .
  • bushings (41) are provided in these tubes, and the spring legs (40) have flats (42) on which clamping screws (not shown) engage.
  • the torsion springs (39) have shorter spring legs (43) which press against a stop block (44) designed as an adjusting nut, which at the front end of the support tube (3) with a knurled disc (45) is adjustable to the spring force the torsion springs (39).
  • the seat frame (17) and the backrest frame (18) are connected to one another on both sides by articulated brackets (46).
  • the exemplary embodiment shown in FIG. 4 differs from the exemplary embodiment according to FIG. 1 only in that the toothed rack (19) is fastened here to a crossbar (49) of the lower part of the backrest frame (18) and the latter to the seat frame (17) is connected via a rubber-metal buffer (50).
  • the torsion springs (39) are preferably made from round steel, but can also consist of leaf spring assemblies.
  • the upholstery of the chair, not shown, can be arbitrary, since the chair frame described and its mechanics, as mentioned at the beginning, serve as the base frame for an entire model family.
  • Fig. 5 shows in partial section a further embodiment of the swivel chair.
  • the locking bolt (16 ⁇ ) is under the force of a spring (51), which strives to insert the locking bolt (16 ⁇ ) in the rack (19).
  • a button (not shown here) for triggering the latch (16 ⁇ ) is designed as a latching button, ie when the button is pressed for the first time, the latch (16 ⁇ ) is pulled out of the rack (19) in order to be released again when the button is pressed a second time .
  • a latching device with a pawl (54) which can be pivoted in two planes under the force of a spring (53) is used, as is customary with latching switch buttons of electrical or electronic devices and therefore in detail need not be described.
  • the pawl (54) works with a pin (55) on the locking bolt (16 ⁇ ).
  • the outermost ends of the torsion springs (39 ⁇ ) are positively connected to pipes (57) via coupling bushes (56) (see FIGS. 7 and 8), which transmit the torsional force in the direction of a spindle nut (44 ⁇ ).
  • Flattened ends (58) of the torsion springs (39 ⁇ ) are in corresponding flat bores (59) of the coupling bushes (56).
  • hooks (60) are attached, which engage in hook-shaped lugs (61) on the spindle nut (44 ⁇ ).
  • the pretension of the torsion springs (39 ⁇ ) can be adjusted by adjusting an adjusting spindle (62) seated in the spindle nut (44 ⁇ ) by means of a rotary knob (63).
  • the figures 9 to 11 show the adjustment mechanism for the prestressing of the torsion springs (39 ⁇ ) somewhat enlarged.
  • a rectangular housing-like extension (64) protruding towards the front is attached to the cross tube (13 ⁇ ), in which the adjusting spindle (62) and the spindle nut (44 ⁇ ) are located.
  • the adjusting spindle (62) has an annular collar (65) on which an axial ball bearing (66) rests, which finds its other abutment on a substantially rectangular counter-pressure disc (67), which, as indicated by dash-dotted lines in Fig. 10, the installation of the Spindle (62) with nut (44 ⁇ ) and their own installation without screws and tools allows because the counter pressure plate (67) has an enlarged bore (68).
  • the counter pressure plate (67) sits in a recess (70) of the housing-like extension (64) in the assembled state.
  • a race (72) for the ball bearing (66) is seated in a circular bead (71) of the recess (69) and has a bore adapted to the spindle (62) and therefore the adjusting spindle (62) localized concentrically to the enlarged bore (68) of the counter pressure plate (67), namely under the constant pressure of the torsion springs (39 ⁇ ).
  • Fig. 12 shows i.a. the arrangement and design of an actuation button (73), which is mounted at one end (here at the right end) of the cross tube (13 ⁇ ), via a lever (74) with the shaft (31) already mentioned in the description of FIG. 2 in Connection is established and belongs to the operating mechanism for the height adjustment of the swivel chair.
  • the lever (74) protrudes through a slot (75) from the cross tube (13 ⁇ ), and the actuation button (73) has a beak-like extension (76) which covers the slot (75) in the rest position of the lever (74) and pinching injuries on fingers.
  • the seat frame (17) can also be tilted to a limited extent about an axis (77) when this tilting movement is released by the latching bolt (16).
  • the seat frame (17) is mounted on brackets (78) in front of the front upper edge of the cross tube (13 ⁇ ).

Landscapes

  • Health & Medical Sciences (AREA)
  • Dentistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Chairs Characterized By Structure (AREA)
  • Chair Legs, Seat Parts, And Backrests (AREA)
  • Chairs For Special Purposes, Such As Reclining Chairs (AREA)

Claims (17)

1. Siège tournant, notamment chaise de bureau ou fauteuil de bureau, réglable en hauteur et muni d'un ressort pneumatique, dans lequel un châssis d'assise et un châssis de dossier sont articulés l'un à l'autre et basculent en synchronisme à l'encontre de la force d'un ressort et l'in­clinaison de l'assise et du dossier peut être réglée et fixée en plusieurs positions par un mécanisme logé dans un bras, remarquable par les caractéristiques suivantes :
a) le bras qui reçoit tout le mécanisme pour le déclenche­ment, le réglage et la fixation de l'inclinaison du châs­sis d'assise (17) et du châssis de dossier (18), pour le déclenchement du réglage en hauteur et pour le réglage de la force élastique de basculement, est un support tubu­laire (3) coudé à angle obtus, dont l'extrémité inférieure entoure, avec possibilité de tourner et de coulisser, un montant tubulaire (2) monté sur un croisillon de piétement (1) et recevant le ressort pneumatique (6) et dont l'ex­trémité supérieure est reliée à une traverse tubulaire (13) s'étendant horizontalement transversalement au support tubulaire (3) et recevant à la fois les axes de basculement du châssis d'assise (17) et du châssis de dossier (18) ;
b) l'axe de basculement du châssis de dossier (18) est formé de deux ressorts de torsion (39), qui sont fixés chacun par une longue branche de ressort (40) coudée dans un tube de la partie inférieure du châssis de dossier (18) et qui s'appliquent par une courte branche de ressort (43) sur un plot de butée (44) déplaçable à l'extrémité supérieure du support tubulaire (3).
2. Siège tournant suivant la revendication 1, caractérisé en ce que le châssis d'assise (17) et la partie inférieure du châssis de dossier (18) sont reliés l'un à l'autre, des deux côtés du siège, par des pattes d'articula­tion (46), et en ce que, pour le réglage de l'inclinaison, une crémaillère (19) est fixée à une traverse (20) du châssis d'assise (17), fait saillie par une ouverture (21) dans le support tubulaire (3) et coopère, dans celui-ci, avec un dispositif de verrouillage par encliquetage (16) monté coulissant dans une pièce de guidage (14).
3. Siège tournant suivant la revendication 1, caractérisé en ce que la crémaillère (19) est fixée à une traverse (49) de la partie inférieure du châssis de dossier (18), et le châssis d'assise (17) et la partie inférieure du châssis de dossier (18) sont reliés l'un à l'autre par un tampon caoutchouc-métal (50).
4. Siège tournant suivant l'une des revendications 1 à 3, caractérisé en ce que, dans les bras de la traverse tubulaire (13) horizontale, s'étendant des deux côtés du sup­port tubulaire (3), sont prévus de petits paliers (27 à 30) pour les ressorts de torsion (39) et pour les axes (26, 31), aux extrémités extérieures desquels sont fixés respectivement des leviers de manoeuvre (35), accessibles sous l'assise et destiné au dispositif de verrouillage par encliquetage (16) du mécanisme de basculement, d'un côté, et destiné à un levier coudé (34) de manoeuvre du poussoir de vanne (36) du ressort pneumatique (6) qui est monté à l'extrémité arrière de la pièce de guidage (14), de l'autre côté.
5. Siège tournant suivant la revendication 4, caractérisé en ce que le levier coudé (34) de manoeuvre du poussoir de vanne (36) et du dispositif de verrouillage par encliquetage (16) sont articulés par des biellettes de liai­son (24, 33), à des leviers (25, 32) fixés sur les axes (26, 31).
6. Siège tournant suivant l'une des revendications 1 à 5, caractérisé en ce que, pour limiter le mouvement de déclenchement du dispositif de verrouillage par encliquetage (16), il est prévu un ressort à lame (23) sur la pièce de guidage (14).
7. Siège tournant suivant l'une des revendications 1 à 6, caractérisé en ce que des oeillets formant palier (37), fixés à l'extrémité antérieure du châssis d'assise (17) et faisant saillie vers le bas, sont montés tournants sur des tourillons (38) par les petits paliers (27, 29) extérieurs.
8. Siège tournant suivant l'une des revendications 1 à 7, caractérisé en ce que les ressorts de torsion (39) sont en barres d'acier rondes.
9. Siège tournant suivant l'une des revendications 1 à 7, caractérisé en ce que les ressorts de torsion (39) sont constitués d'empilements de ressorts à lame.
10. Siège tournant suivant l'une des revendications 1 à 9, caractérisé en ce que, dans l'extrémité inférieure du support tubulaire (3) entourant le montant tubulaire (2), est prévue un coussinet (4) en matière plastique pour guider et pour soutenir davantage le support tubulaire (3).
11. Siège tournant suivant l'une des revendications 1 à 10, caractérisé en ce que, dans des tubes latéraux de la partie supérieure du châssis de dossier (18), sont insérés des éléments élastiques (47) supplémentaires.
12. Siège tournant suivant la revendication 11, caractérisé en ce que les éléments élastiques (47) sont des barres rondes en acier, sur les tronçons dénudés desquelles sont enfilées des douilles (48) souples en matière plastique, dont le diamètre extérieur est égal à celui de tube du châs­sis de dossier (18).
13. Siège tournant suivant l'une des revendications 1 à 12, caractérisé en ce que le support tubulaire (3) et la traverse tubulaire (13) horizontale s'étendant transversale­ment à celui-ci sont emboîtés et soudés l'un à l'autre de manière que la section transversale intérieure des deux tubes (3, 13) soit dégagée.
14. Siège tournant suivant la revendication 13, caractérisé en ce que la traverse tubulaire (13ʹ) présente une section transversale triangulaire arrondie, dont la hauteur correspond sensiblement au diamètre du support tubulaire (3).
15. Siège tournant suivant la revendication 1 ou 14, caractérisé en ce que le plot de butée (44) est constitué en écrou à broches (44ʹ), dans lequel pénètre une broche de réglage (62).
16. Siège tournant suivant la revendication 1, caractérisé en ce que l'axe de basculement du châssis d'as­sise (17) est monté sur la traverse tubulaire (13), et en ce que, pour la manoeuvre de l'inclinaison de l'assise et pour le réglage en hauteur, des touches de manoeuvre sont inté­grées à la traverse tubulaire (13), la touche de manoeuvre pour le mécanisme de basculement étant constituée en touche à encliquetage.
17. Siège tournant suivant la revendication 1, caractérisé en ce qu'à l'intérieur de la traverse tubulaire (13ʹ), l'extrémités extérieures des ressorts de torsion (39ʹ) sont reliées par complémentarité de forme avec les unes des extrémités de tubes (57) les entourant de manière lâche, et attaquant, par leur autre extrémité, à l'aide de crochets (60), des prolongements (61) en forme de crochets de l'écrou à broches (44ʹ).
EP87104799A 1986-05-15 1987-04-01 Chaise tournante et réglable en hauteur, comportant un ressort pneumatique, notamment chaise ou fauteuil de bureau Expired - Lifetime EP0247328B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87104799T ATE59761T1 (de) 1986-05-15 1987-04-01 Hoehenverstellbarer, mit gasdruckfeder ausgestatteter drehstuhl, insbesondere buerostuhl oder -sessel.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3616475A DE3616475C1 (de) 1986-05-15 1986-05-15 Hoehenverstellbarer,mit Gasdruckfeder ausgestatteter Drehstuhl,insbesondere Buerostuhl oder -sessel
DE3616475 1986-05-15

Publications (2)

Publication Number Publication Date
EP0247328A1 EP0247328A1 (fr) 1987-12-02
EP0247328B1 true EP0247328B1 (fr) 1991-01-09

Family

ID=6300953

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87104799A Expired - Lifetime EP0247328B1 (fr) 1986-05-15 1987-04-01 Chaise tournante et réglable en hauteur, comportant un ressort pneumatique, notamment chaise ou fauteuil de bureau

Country Status (8)

Country Link
US (1) US4779925A (fr)
EP (1) EP0247328B1 (fr)
JP (1) JP2505458B2 (fr)
AT (1) ATE59761T1 (fr)
CA (1) CA1276099C (fr)
DE (1) DE3616475C1 (fr)
ES (1) ES2020524B3 (fr)
NO (1) NO871378L (fr)

Families Citing this family (48)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3700447A1 (de) * 1987-01-09 1988-07-21 Vogt Bueromoebel Sitzmoebel
US4840426A (en) * 1987-09-30 1989-06-20 Davis Furniture Industries, Inc. Office chair
GB9107661D0 (en) * 1991-04-11 1991-05-29 Nat Res Dev Adjustable chair
US5106157A (en) * 1989-03-01 1992-04-21 Herman Miller, Inc. Chair height and tilt adjustment mechanisms
US5224758A (en) * 1989-12-27 1993-07-06 Itoki Crebio Corporation Tilting control assembly for chair
NO174135C (no) * 1990-09-05 1994-03-23 Staal & Stil As Arbeidsstol
JP2572828Y2 (ja) 1992-04-01 1998-05-25 株式会社東洋工芸 椅子における座の昇降装置の操作構造
CA2136967C (fr) 1992-06-15 2001-04-03 William E. Stumpf Chaise de bureau
DE4331987A1 (de) * 1993-09-21 1995-03-23 Fredi Dubach Stuhl, insbesondere Bürostuhl
WO1995034233A1 (fr) * 1994-06-10 1995-12-21 Haworth, Inc. Fauteuil ergonomique
DE4436145A1 (de) * 1994-10-11 1996-04-18 Kusch Co Sitzmoebel Sitzmöbel
US5634537A (en) * 1995-04-19 1997-06-03 Lord Corporation Locking and positioning device
US5765914A (en) * 1995-06-07 1998-06-16 Herman Miller, Inc. Chair with a tilt control mechanism
US5618021A (en) * 1995-06-07 1997-04-08 Sears Manufacturing Company Seat suspension with ride zone protection apparatus
EP0804888B1 (fr) * 1996-04-22 1997-11-19 Steelcase Strafor (S.A.) Perfectionnements aux systèmes de réglage et de commande des divers éléments mobiles et/ou déformables d'un siège de bureau
US5810439A (en) * 1996-05-09 1998-09-22 Haworth, Inc. Forward-rearward tilt control for chair
US6079786A (en) * 1997-05-07 2000-06-27 Brunswick Corporation One-shot pedestal swivel seat lock/release mechanism
US6022077A (en) * 1997-05-07 2000-02-08 Brunswick Corporation One-shot pedestal swivel seat lock/release mechanism
US5918935A (en) * 1997-06-03 1999-07-06 Stulik; Edward L. Reclining chair
US5871258A (en) 1997-10-24 1999-02-16 Steelcase Inc. Chair with novel seat construction
US6250715B1 (en) 1998-01-21 2001-06-26 Herman Miller, Inc. Chair
US6007150A (en) 1998-03-08 1999-12-28 Milsco Manufacturing Company Motorcycle seat with adjustable backrest
US6224155B1 (en) 1999-01-12 2001-05-01 Steelcase Development Inc. Vertical height adjustment mechanism for chairs
DE29910620U1 (de) * 1999-06-17 2000-10-19 König + Neurath AG, 61184 Karben Stuhl, insbesondere Bürostuhl
DE10026292C2 (de) * 1999-07-06 2003-03-20 Roeder Peter Stuhl
EP1175854A1 (fr) * 2000-07-25 2002-01-30 CO.FE.MO. S.p.A. Dispositif de réglage pour chaise inclinable de bureau ou similaire
US6644741B2 (en) 2001-09-20 2003-11-11 Haworth, Inc. Chair
US7625046B2 (en) 2002-03-29 2009-12-01 Garrex Llc Task chair
US7396082B2 (en) * 2002-03-29 2008-07-08 Garrex Llc Task chair
US7040703B2 (en) 2002-03-29 2006-05-09 Garrex Llc Health chair a dynamically balanced task chair
US7396081B2 (en) * 2003-05-16 2008-07-08 Leggett & Platt Canada Co. Chair height adjustment mechanism
US6942080B2 (en) * 2003-12-04 2005-09-13 Tsann Kuen Enterprise Co., Ltd. Electrical appliance having a wire winding device
US6945602B2 (en) * 2003-12-18 2005-09-20 Haworth, Inc. Tilt control mechanism for chair
US7237841B2 (en) 2004-06-10 2007-07-03 Steelcase Development Corporation Back construction with flexible lumbar
US7458637B2 (en) 2004-06-10 2008-12-02 Steelcase Inc. Back construction with flexible lumbar
US7922134B2 (en) * 2004-10-19 2011-04-12 Gasser Chair Company, Inc. Objects including gaming stools with an easy rolling support base
CA2600310C (fr) * 2005-03-01 2014-07-08 Haworth, Inc. Mecanisme de controle d'inclinaison d'un fauteuil
US7293832B2 (en) * 2005-08-19 2007-11-13 Chien-Kai Huang Chair adjustable device
NO324513B1 (no) * 2006-03-02 2007-11-05 Jurek Buchacz Vippefjaermekanisme for en stol, saerlig en kontor-eller arbeidsstol
BRPI0823267A2 (pt) 2007-01-29 2013-09-24 Miller Herman Inc estrutura de assento e mÉtodos para uso da mesma
ITMI20070718A1 (it) * 2007-04-06 2008-10-07 L & P Property Management Co Dispositivo di regolazione per sedie regolabili e simili.
DE202008014043U1 (de) * 2008-10-22 2010-03-11 Tepe-Walser, Silvia Federweiche Lagerungszwischenstücke
DE102009010234A1 (de) * 2009-02-24 2010-09-02 Klöber GmbH Synchronmechanik für Bürostühle mit einer Einstelleinrichtung für die Anpassung der Rückstellkraft an das Benutzergewicht
US9801471B2 (en) 2014-04-17 2017-10-31 Hni Technologies Inc. Chair and chair control assemblies, systems, and methods
EP3927215B1 (fr) 2019-02-21 2025-06-11 Steelcase Inc. Élément de soutien du corps
US11357329B2 (en) 2019-12-13 2022-06-14 Steelcase Inc. Body support assembly and methods for the use and assembly thereof
WO2022197675A2 (fr) 2021-03-17 2022-09-22 Steelcase Inc. Agencement de sièges
EP4464196A1 (fr) * 2023-05-16 2024-11-20 Vitra AG Chaise et composition de meuble

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3136580A (en) * 1962-05-22 1964-06-09 Bassick Co Chair control
CA806983A (en) * 1965-07-23 1969-02-25 Dufton Ronald Chair tilting mechanism
US4373692A (en) * 1980-05-01 1983-02-15 Steelcase Inc. Chair control with height adjustment actuator
DE3139448C2 (de) * 1981-10-03 1984-06-07 Kusch & Co Sitzmöbelwerke KG, 5789 Hallenberg Stuhl
DE3303265C2 (de) * 1983-02-01 1985-05-09 Röder GmbH Sitzmöbelwerke, 6000 Frankfurt Stuhl, insbesondere Bürostuhl
DE3316533A1 (de) * 1983-05-06 1984-11-08 Provenda Marketing AG, Herisau Arbeitsstuhl, insbesondere buerostuhl
US4560199A (en) * 1983-07-22 1985-12-24 Pamont Ag Recliner chair
DE3334424A1 (de) * 1983-09-23 1985-04-11 Girsberger AG, Bützberg Bedienungsmechanismus fuer sitzmoebel
CA1184108A (fr) * 1984-04-09 1985-03-19 David W. Smith Suspension de fauteuil basculant
DE8417429U1 (de) * 1984-06-08 1984-09-20 Hansen, Eckard, 9430 St. Margrethen Punktsynchronverstelleinrichtung für Bürostühle
DE3509050A1 (de) * 1984-10-24 1986-04-24 Bürositzmöbelfabrik Friedrich-W. Dauphin GmbH & Co, 8561 Offenhausen Betaetigungs-vorrichtung fuer den ausloesestoessel einer laengenverstellbaren gasfeder

Also Published As

Publication number Publication date
CA1276099C (fr) 1990-11-13
JP2505458B2 (ja) 1996-06-12
ATE59761T1 (de) 1991-01-15
DE3616475C1 (de) 1987-06-11
JPS6365818A (ja) 1988-03-24
NO871378D0 (no) 1987-04-02
ES2020524B3 (es) 1991-08-16
US4779925A (en) 1988-10-25
EP0247328A1 (fr) 1987-12-02
NO871378L (no) 1987-11-16

Similar Documents

Publication Publication Date Title
EP0247328B1 (fr) Chaise tournante et réglable en hauteur, comportant un ressort pneumatique, notamment chaise ou fauteuil de bureau
DE3741472C2 (fr)
EP0144577B1 (fr) Dispositif de support pour un siège comportant un support de dossier et un siège, tous deux réglables en inclinaison
EP0179185B1 (fr) Chaise, notamment chaise de bureau
EP0264029B1 (fr) Chaise
DE19945118B4 (de) Sessel mit Aufstehhilfe
DE1282880B (de) Stuhl mit einer ausziehbaren Beinstuetze
EP3120732B1 (fr) Mecanisme de siege de bureau
EP0397661B1 (fr) Chaise, notamment chaise de travail ou de bureau
EP3528664B1 (fr) Dispositif de mécanisme synchrone et chaise en étant équipée
DE69508618T2 (de) Klappstuhl
EP0233974B1 (fr) Dispositif d'inclinaison pour sièges
EP0931483B1 (fr) Meuble d'assise ou de couchage
DE1429413B2 (de) Beschlag fuer einen in mehrere stellungen verstellbaren lehnstuhl
DE69714910T2 (de) Verstellvorrichtung
EP0341344B1 (fr) Meuble servant de siège
BE1018255A3 (de) Sitzmobel.
DE1159147B (de) Hebelsteuereinrichtung fuer die Beinstuetze eines Verstellsessels
EP2477523B1 (fr) Mécanisme de bascule pour une chaise de bureau
DE1289630B (de) Sitz-Liege-Verstellsessel
EP0535262B1 (fr) Chaise réglable et adaptable à la taille d'une personne, notamment chaise rotative
WO2014183851A1 (fr) Mécanique synchrone
EP1074202B1 (fr) Meuble pour s'asseoir
CH663526A5 (en) Chair
DE20000613U1 (de) Sitzmöbel

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH ES FR GB GR IT LI NL SE

17P Request for examination filed

Effective date: 19880525

17Q First examination report despatched

Effective date: 19890918

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH ES FR GB GR IT LI NL SE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 19910109

REF Corresponds to:

Ref document number: 59761

Country of ref document: AT

Date of ref document: 19910115

Kind code of ref document: T

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)
ET Fr: translation filed
ITF It: translation for a ep patent filed
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Effective date: 19910401

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 19910403

Year of fee payment: 5

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 19910408

Year of fee payment: 5

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 19910430

Year of fee payment: 5

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 19910924

Year of fee payment: 5

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Effective date: 19920402

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Effective date: 19920430

Ref country code: CH

Effective date: 19920430

Ref country code: BE

Effective date: 19920430

BERE Be: lapsed

Owner name: KUSCH & CO. SITZMOBELWERKE K.G.

Effective date: 19920430

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Effective date: 19921101

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee
REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 19930225

Year of fee payment: 7

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 19940209

Year of fee payment: 8

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19940325

Year of fee payment: 8

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Effective date: 19941229

EUG Se: european patent has lapsed

Ref document number: 87104799.9

Effective date: 19921108

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Effective date: 19950401

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19950403

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 19950401

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 19990201

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 20050401