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EP1059051A1 - Accoudoir réglable pour une chaise - Google Patents

Accoudoir réglable pour une chaise Download PDF

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Publication number
EP1059051A1
EP1059051A1 EP00810488A EP00810488A EP1059051A1 EP 1059051 A1 EP1059051 A1 EP 1059051A1 EP 00810488 A EP00810488 A EP 00810488A EP 00810488 A EP00810488 A EP 00810488A EP 1059051 A1 EP1059051 A1 EP 1059051A1
Authority
EP
European Patent Office
Prior art keywords
armrest
backrest support
contour
support
adjustable
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.)
Withdrawn
Application number
EP00810488A
Other languages
German (de)
English (en)
Inventor
Egon Bräuning
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.)
Vitra AG
Original Assignee
Vitra Patente AG
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 Vitra Patente AG filed Critical Vitra Patente AG
Publication of EP1059051A1 publication Critical patent/EP1059051A1/fr
Withdrawn legal-status Critical Current

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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
    • A47C1/022—Reclining or easy chairs having independently-adjustable supporting parts
    • A47C1/03—Reclining or easy chairs having independently-adjustable supporting parts the parts being arm-rests

Definitions

  • the present invention relates to an adjustable in the horizontal orientation Armrest on a preferably height-adjustable armrest Chair.
  • the armrest is supported by a backrest support that sits on the chair, is usually attached to the seat support by means of screws.
  • With such armrests are particularly equipped with swivel chairs.
  • On one Chair usually - apart from special chairs - on both sides of the seat there is an armrest and both armrests have identical mechanisms exhibit.
  • the horizontal adjustability of the armrest in conjunction with the Height adjustment of the entire armrest is primarily at office workplaces and especially useful in computer workplaces where the person sitting a safe and ergonomic to the individual body anatomy and to the arm support optimally adapted to the respective workplace conditions requirement.
  • EP 0 317 835 B1 discloses adjustable armrests on a chair in shape of elbow supports. Below the seat is a support bar bent upwards attached, on which the height-adjustable armrest is attached. The height can be adjusted by telescoping the armrest realized on the support rod. In the horizontal angular position adjust the armrest with several swivel-like discs.
  • the relatively low load capacity of the serrated lock washers is disadvantageous with this construction and the non-uniform contact surface with the stepped heels between the individual serrated lock washers. Moreover, is only a very limited horizontal adjustment range possible.
  • EP 0 589 834 B1 describes a practical and quick-to-operate actuating device known for the height of armrests, where a flat, Spline is provided.
  • a backrest section surrounding the support column there is an unlockable wedge with one against the toothing of the support column complementary gearing.
  • the wedge When unlocking the wedge, the Adjust the height of the armrest over the distance of the splines.
  • This The arrangement does not deal with the horizontally changeable orientation of the Armrest.
  • the wedge must be in addition to an operating button Movable part provided and housed in the backrest part.
  • WO 96/40537 contains an adjustable height and horizontal Armrest, where a relatively complex mechanism in a first unlocking stage a pinion with changed rotational position in a rack part on the same Position engages what with a changed horizontal orientation of the Armrest goes hand in hand. In the second unlocking stage of the pinion its engagement at a higher or lower position on the rack part; this corresponds to a new height setting on a vertical support column swivel armrest.
  • the adjustable armrest for a chair has a backrest support that attached to the chair, preferably on the seat support of the chair below his seat is. There is also a backrest supported by the backrest support and an armrest attached to it, which can be adjusted horizontally is.
  • the height of the armrest is preferably vertical adjustable backrest can be positioned variably.
  • the backrest support has a top a fixed support plate, on the top of which a locking contour is provided is.
  • the armrest has a base plate at the bottom, one on the underside there is a counter contour acting together with the locking contour.
  • the Armrest is with its base plate on the support plate around a vertical axis of rotation swiveling, put on.
  • the horizontal orientation of the Armrest can be lifted elastically upwards to the extent that to disengage the locking contour and the counter contour, and the armrest around the axis of rotation over the full setting angle or over the Swivel single or multiple of a partial angle. After completion the locking contour and the counter contour come back engaged with each other.
  • the locking contour is designed as a raised nose and the Counter-contour consists of several cavities following in a grid pattern. Between each the adjacent troughs the partial angle is defined, based on the axis of rotation, while the full setting angle between the two outermost hollows consists. Depending on the chosen horizontal orientation of the armrest, the nose grips into one of the hollows. It is advantageous if the locking contour has more than one, preferably has two raised lugs spaced apart from one another.
  • the elastic lifting of the armrest is due to the elasticity of the armrest, i.e. especially the base plate, or by storing the armrest under Intermediate insertion of a spring element allows.
  • the locking contour is arranged in the front area of the carrier plate.
  • the base plate protrudes forward of the carrier plate and the axis of rotation passes through it rear area of the carrier plate.
  • the axis of rotation is from one side of the Carrier plate inserted stud screw formed, the threaded shaft of the base plate protrudes and engages in a bearing bush in the bottom of the cushion plate is arranged.
  • a spigot extends from the carrier plate, which at Pulling up the armrest acts as a stop.
  • a vertical grid is included on the backrest support for height adjustment of the armrest a sequence of tooth tips and recesses in between.
  • a storage is provided for receiving an actuator, which comes to rest in a groove in its rest position and so the Blocking of the backrest support blocked.
  • the actuator is mounted against a compression spring and has a radial groove, which in the unblocked status by actuating the actuator into the vertical Line-forming tooth tips arrives so that when the height is adjusted
  • the back rest of the tooth tips run through the radial groove.
  • the backrest support and the hollow backrest support has a non-rotationally symmetrical cross section, preferably of triangular shape.
  • the particular most important advantages of the armrest according to the invention exist in that now a mechanically uncomplicated adjustment of the armrest is available in the horizontal orientation, which is simple by the user is to change while sitting. Especially when getting up with Appropriate force on the armrest will not be unintentional Adjust.
  • the construction enables this in a simple manner seated users also, by pressing an operating button the height of the Adjust armrest. A secure fixation of the set height position is guaranteed.
  • the entire mechanism allows an ergonomically optimal Adaptation to the individual anatomy of the user of the chair and his current working posture.
  • the aesthetic appearance of the chair is determined by the integrated actuating mechanism in no way affected.
  • a vertically upward bent back support 1 flanking the seat is fixedly arranged on both sides.
  • the free end of a rod-shaped backrest support 2 , on which the essentially horizontally extending armrest 3 is fixed, is inserted from above into the backrest support 1 .
  • the individual armrest 3 can be adjusted horizontally, namely in steps from a horizontal orientation H 0 that is as close as possible to the seat, to a horizontal orientation H n that is directed outward as far as possible.
  • the armrest 3 placed on the backrest support 2 consists of the lower base plate 30 and the cushion plate 31 to be placed on the base plate 30 .
  • a support plate 20 is arranged on the backrest support 2 , on which the base plate 30 provided with the cushion plate 31 is mounted.
  • the cushion plate 31 and the base plate 30 are preferably connected to one another by means of screws 32 penetrating through the latter.
  • a locking contour 21 At the front of the carrier plate 20 there is a locking contour 21 , here in the form of a raised nose, on the upper side thereof.
  • a vertical axis of rotation D In the rear part of the carrier plate 20 there is a vertical axis of rotation D , on which the base plate 30 placed on the carrier plate 20 is horizontally pivoted.
  • a rotational axis D and for mounting the base plate 30, for example is one of the bottom projecting through the support plate 20 and engaging in the base plate 30 stud 22nd If the necessary, later explained self-elasticity of the base plate 30 is not sufficient, a spring element 23 , preferably a plurality of disc springs, can be attached to the stud screw 22 .
  • a counter contour which is not visible here on the underside of the base plate 30 . If the locking contour 21 is a raised nose, the counter-contour consists of a trough grid arranged around the axis of rotation D in the arc.
  • the counter-contour is formed from a nose grid guided in an arc. In the graduated selectable horizontal orientations of the armrest 3 , the locking contour 21 and the counter contour come into engagement with one another in different positions.
  • the backrest support 2 is encompassed by a bracket 5 with a clamping bolt 50 projecting to the side.
  • a vertical guide groove 10 in the backrest support 1 in which the backrest support 2 comes to lie in the assembled state depending on the entry depth.
  • the backrest support 1 is fastened, for example, by means of screws 13 to the seat support of the chair, below the seat.
  • the guide groove 10 intersecting a recess 11 in which a bore 12 is located for the passage of the clamping bolt 50th
  • a screw element 51 is provided for screwing onto the clamping bolt 50 protruding from the backrest support 1 .
  • the bracket 5 comprising the backrest support 1 loosens, so that the backrest support 1 can be pulled out more or pushed in deeper, depending on the desired new height setting.
  • the backrest support 1 is tightened and tightened again by tightening the screw element 51 again.
  • the support plate 20 which is seated in a recess in the base plate 30 , and the base plate 30 are locked against one another, ie the locking contour 21 engages in the counter contour 33 , whereby a change in the horizontal orientation of the armrest 3 is currently blocked.
  • the pin 24 projecting forwardly from the carrier plate 20 lies with an air gap above the base plate 30 .
  • the stud screw 22 inserted by the carrier plate 20 engages with its threaded shaft through the base plate 30 and into a bearing bush 35 which is accommodated in the base 34 provided on the underside of the cushion plate 31 .
  • the carrier plate 20 and the base plate 30 are locked together, ie the locking contour 21 does not engage in the counter contour 33 .
  • the front part of the armrest 3 ie the composite of base plate 30 , floor 34 and cushion plate 31 , was raised against an elastic resistance.
  • the countercontour 33 designed as a trough is lifted off the locking contour 21 which is designed as a nose.
  • the armrest 3 can thus be changed in its horizontal orientation by pivoting about the axis of rotation D into a new position.
  • the pin 24 projecting forwards from the carrier plate 20 is now gripped by an extension of the base plate 30 , which forms a stop, so that the armrest 3 cannot be pulled further up. This prevents the connection between the stud 22 and the bearing bush 35 from being overstressed in the axis of rotation D.
  • the height adjustment of the armrest 3 is clearly modified here compared to the embodiment according to FIG. 2B, the horizontal orientation, however, is only slightly modified.
  • Two spaced lugs are provided on the carrier plate 20 as a locking contour 21 . This symmetrical arrangement can improve the stability of the locking.
  • the pin 24 At the front of the carrier plate 20 there is in turn the pin 24 as a safety stop for limiting the upward bending of the armrest 3 when the horizontal orientation is intended to be changed.
  • the backrest support 1 and the backrest support 2 preferably have a triangular cross section.
  • the fixation of a set height of the armrest 3 is based on the fact that the actuator 4 with its full cross section comes to rest in a groove 16 corresponding to the selected height.
  • the tooth tips 17 adjacent to the occupied groove 16 prevent the armrest 3 with the backrest support 2 extending downward from being pulled out or pushed in. Due to the triangular cross section of the backrest support 2 and the backrest support 1 inserted therein, there is only minimal play with regard to rotation, so that a very stably arrested arrangement is obtained.
  • the height of the armrest 3 can be adjusted variably in steps of the center distance between two adjacent grooves 16 over the entire length of the vertical grid 15 .
  • the compression spring 40 forces the actuator 4 into the locked position, where the full cross section of the actuator 4 comes to lie within a groove 16 between two tooth tips 17 (see FIG. 7A).
  • the actuator 4 When the actuator 4 is pressed against the compression spring 40 , the radial groove 41 reaches the tooth tips 17 forming a vertical line. Released in this way, the backrest support 2 can be pulled out higher or pushed lower onto the backrest support 1 , as required, the tooth tips 17 passed through the radial groove 41 during the adjusting movement. When the desired height setting has been reached, the actuator is allowed to jump back to its starting position, so that a new groove 16 is occupied by the full cross section of the actuator 4 .

Landscapes

  • Health & Medical Sciences (AREA)
  • Dentistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Seats For Vehicles (AREA)
EP00810488A 1999-06-11 2000-06-05 Accoudoir réglable pour une chaise Withdrawn EP1059051A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE29910250U 1999-06-11
DE29910250U DE29910250U1 (de) 1999-06-11 1999-06-11 Verstellbare Armlehne für einen Stuhl

Publications (1)

Publication Number Publication Date
EP1059051A1 true EP1059051A1 (fr) 2000-12-13

Family

ID=8074703

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00810488A Withdrawn EP1059051A1 (fr) 1999-06-11 2000-06-05 Accoudoir réglable pour une chaise

Country Status (2)

Country Link
EP (1) EP1059051A1 (fr)
DE (1) DE29910250U1 (fr)

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6637072B2 (en) 2000-09-29 2003-10-28 Formway Furniture Limited Castored base for an office chair
US6802566B2 (en) 2000-09-28 2004-10-12 Formway Furniture Limited Arm assembly for a chair
US6840582B2 (en) 2002-05-14 2005-01-11 Formway Furniture Limited Height adjustable arm assembly
USD509969S1 (en) 2003-09-05 2005-09-27 Steelcase Development Corporation Seating unit
USD536890S1 (en) 2004-03-03 2007-02-20 Steelcase Development Corporation Seating unit
USD544722S1 (en) 2004-06-07 2007-06-19 Steelcase Development Corporation Chair
USD552368S1 (en) 2004-06-07 2007-10-09 Steelcase Development Corporation Chair
USD554383S1 (en) 2004-06-07 2007-11-06 Steelcase Development Corporation Chair
USD703987S1 (en) 2013-06-07 2014-05-06 Steelcase Inc. Chair
USD703988S1 (en) 2013-06-07 2014-05-06 Steelcase Inc. Chair
USD704487S1 (en) 2013-06-07 2014-05-13 Steelcase Inc. Chair
USD706547S1 (en) 2013-06-07 2014-06-10 Steelcase Inc. Chair
USD707976S1 (en) 2013-06-07 2014-07-01 Steelcase Inc. Chair
USD721529S1 (en) 2013-06-07 2015-01-27 Steelcase Inc. Handle apparatus
WO2022023552A1 (fr) 2020-07-31 2022-02-03 Vitra Ag Composant support, accoudoir doté d'un tel composant support et chaise dotée d'un tel accoudoir
USD1063474S1 (en) 2022-09-07 2025-02-25 Steelcase Inc. Chair

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10045864A1 (de) * 2000-09-14 2002-03-28 Interstuhl Bueromoebel Gmbh Armstütze für einen Stuhl, insbesondere für einen Büro- oder Arbeitsstuhl

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0317835A1 (fr) 1987-11-23 1989-05-31 Grahl Gmbh Sitzmöbelfabrik Chaise, notamment chaise rotative
EP0589834A1 (fr) 1992-09-16 1994-03-30 Protoned B.V. Dispositif de positionnement de dossiers et accoudoirs réglables par étapes
DE29511267U1 (de) 1995-07-12 1995-09-21 Martens, Irene, 47627 Kevelaer Armstütze
FR2725762A1 (fr) * 1994-10-14 1996-04-19 Manducher Sa Dispositif de verrouillage d'un element mobile sur une glissiere
DE29510588U1 (de) 1995-06-29 1996-10-31 Protoned B.V., Amsterdam Verstellbare Armlehne für einen Stuhl
WO1996039901A1 (fr) * 1995-06-07 1996-12-19 Herman Miller, Inc. Ensemble accoudoir reglable
WO1996040537A1 (fr) 1995-06-07 1996-12-19 Herman Miller, Inc. Ensemble accoudoir reglable
EP0809957A2 (fr) 1996-05-30 1997-12-03 GRAHL GmbH Chaise, notamment chaise tournante, avec appuis-bras
DE19717077A1 (de) * 1997-04-23 1998-10-29 Bock Martin Kunststoff Höhenverstellbare Armlehne, insbesondere für einen Bürostuhl
US5884976A (en) * 1998-02-06 1999-03-23 Nightingale Inc. Chair swivel arm rest

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0317835A1 (fr) 1987-11-23 1989-05-31 Grahl Gmbh Sitzmöbelfabrik Chaise, notamment chaise rotative
EP0589834A1 (fr) 1992-09-16 1994-03-30 Protoned B.V. Dispositif de positionnement de dossiers et accoudoirs réglables par étapes
FR2725762A1 (fr) * 1994-10-14 1996-04-19 Manducher Sa Dispositif de verrouillage d'un element mobile sur une glissiere
WO1996039901A1 (fr) * 1995-06-07 1996-12-19 Herman Miller, Inc. Ensemble accoudoir reglable
WO1996040537A1 (fr) 1995-06-07 1996-12-19 Herman Miller, Inc. Ensemble accoudoir reglable
DE29510588U1 (de) 1995-06-29 1996-10-31 Protoned B.V., Amsterdam Verstellbare Armlehne für einen Stuhl
DE29511267U1 (de) 1995-07-12 1995-09-21 Martens, Irene, 47627 Kevelaer Armstütze
EP0809957A2 (fr) 1996-05-30 1997-12-03 GRAHL GmbH Chaise, notamment chaise tournante, avec appuis-bras
DE19717077A1 (de) * 1997-04-23 1998-10-29 Bock Martin Kunststoff Höhenverstellbare Armlehne, insbesondere für einen Bürostuhl
US5884976A (en) * 1998-02-06 1999-03-23 Nightingale Inc. Chair swivel arm rest

Cited By (29)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6802566B2 (en) 2000-09-28 2004-10-12 Formway Furniture Limited Arm assembly for a chair
US6817667B2 (en) 2000-09-28 2004-11-16 Formway Furniture Limited Reclinable chair
US6874852B2 (en) 2000-09-28 2005-04-05 Formway Furniture Limited Lumbar support
US6908159B2 (en) 2000-09-28 2005-06-21 Formway Furniture Limited Seat for a reclining office chair
US6910741B2 (en) 2000-09-28 2005-06-28 Formway Furniture Limited Lumbar support
US7798573B2 (en) 2000-09-28 2010-09-21 Formway Furniture Limited Reclinable chair
US7441839B2 (en) 2000-09-28 2008-10-28 Formway Furniture Limited Reclinable chair
US6637072B2 (en) 2000-09-29 2003-10-28 Formway Furniture Limited Castored base for an office chair
US6840582B2 (en) 2002-05-14 2005-01-11 Formway Furniture Limited Height adjustable arm assembly
USD534018S1 (en) 2003-09-05 2006-12-26 Steelcase Development Corporation Control for seating unit
USD543385S1 (en) 2003-09-05 2007-05-29 Steelcase Development Corporation Seat and back arrangement
USD543396S1 (en) 2003-09-05 2007-05-29 Steelcase Development Corporation Back construction
USD543397S1 (en) 2003-09-05 2007-05-29 Steelcase Development Corporation Back construction
USD534364S1 (en) 2003-09-05 2007-01-02 Steelcase Development Corporation Seating unit having armrests
USD509969S1 (en) 2003-09-05 2005-09-27 Steelcase Development Corporation Seating unit
USD536890S1 (en) 2004-03-03 2007-02-20 Steelcase Development Corporation Seating unit
USD544722S1 (en) 2004-06-07 2007-06-19 Steelcase Development Corporation Chair
USD554384S1 (en) 2004-06-07 2007-11-06 Steelcase Development Corporation Chair
USD554383S1 (en) 2004-06-07 2007-11-06 Steelcase Development Corporation Chair
USD552368S1 (en) 2004-06-07 2007-10-09 Steelcase Development Corporation Chair
USD703987S1 (en) 2013-06-07 2014-05-06 Steelcase Inc. Chair
USD703988S1 (en) 2013-06-07 2014-05-06 Steelcase Inc. Chair
USD704487S1 (en) 2013-06-07 2014-05-13 Steelcase Inc. Chair
USD706547S1 (en) 2013-06-07 2014-06-10 Steelcase Inc. Chair
USD707976S1 (en) 2013-06-07 2014-07-01 Steelcase Inc. Chair
USD721529S1 (en) 2013-06-07 2015-01-27 Steelcase Inc. Handle apparatus
WO2022023552A1 (fr) 2020-07-31 2022-02-03 Vitra Ag Composant support, accoudoir doté d'un tel composant support et chaise dotée d'un tel accoudoir
US12127689B2 (en) 2020-07-31 2024-10-29 Vitra Ag Support component, armrest with such a support component and chair with such an armrest
USD1063474S1 (en) 2022-09-07 2025-02-25 Steelcase Inc. Chair

Also Published As

Publication number Publication date
DE29910250U1 (de) 1999-11-04

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