EP1256294A2 - Chaise, notamment chaise de bureau - Google Patents

Chaise, notamment chaise de bureau Download PDF

Info

Publication number
EP1256294A2
EP1256294A2 EP02010436A EP02010436A EP1256294A2 EP 1256294 A2 EP1256294 A2 EP 1256294A2 EP 02010436 A EP02010436 A EP 02010436A EP 02010436 A EP02010436 A EP 02010436A EP 1256294 A2 EP1256294 A2 EP 1256294A2
Authority
EP
European Patent Office
Prior art keywords
seat
backrest
link
pivot point
inclination
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
EP02010436A
Other languages
German (de)
English (en)
Other versions
EP1256294B1 (fr
EP1256294A3 (fr
Inventor
Armin Sander
Martin Potrykus
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.)
Koenig and Neurath AG
Original Assignee
ITO Design und Marketing Armin Sander
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 ITO Design und Marketing Armin Sander filed Critical ITO Design und Marketing Armin Sander
Publication of EP1256294A2 publication Critical patent/EP1256294A2/fr
Publication of EP1256294A3 publication Critical patent/EP1256294A3/fr
Application granted granted Critical
Publication of EP1256294B1 publication Critical patent/EP1256294B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • A47C1/031—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
    • A47C1/03294—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest slidingly movable in the base frame, e.g. by rollers
    • 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

Definitions

  • the invention relates to a chair, in particular office chair, with an over a backrest support on a seat support tiltable and with a synchronously movable seat that extends over a in the area of supports the rear half of the seat arranged rear seat link on the seat support, being used to synchronize the movement of the backrest and a coupling handlebar is provided for the movement of the seat, the one with the seat and on the other hand is rotatably connected to the backrest link.
  • the synchronous mechanism serves to adjust the backrest change the position of the seat at the same time.
  • DE 37 35 256 C2 is a chair or armchair with synchronously adjustable Backrest and seat inclination known.
  • This chair has a two-part design
  • the seat also lowers the rear when the backrest is inclined Edge of the seat.
  • the two-part seat is in the front area articulated on each side with a pair of levers on a non-swiveling seat support.
  • the seat In the rear area, the seat is on one side with one on one rear carrier rigidly arranged holding part rotatably connected, the rear Carrier is rigidly connected to the backrest.
  • On this backrest support the seat is supported with its rear area.
  • a synchronous adjustment device in which a one-piece seat part as a seat with a lower support section of a back support the backrest via a coupling link called a rocker arm is connected in such a way that the seat surface due to an inclination of the backrest pulls backwards while lifting at the same time.
  • This will make the Body angle of a user opened in the desired manner.
  • slips the user during this movement due to the raised seat in the rear Seat area also to the front. This is undesirable because when standing up again the backrest the physical contact of the user to the backrest lost due to slipping at least in the pelvic area.
  • the invention is therefore based on the object of a chair, in particular a chair Office chair, with a particularly suitable and easy-to-implement synchronizing mechanism to be indicated, in which the disadvantages mentioned are avoided.
  • This object is achieved according to the invention by the features of the claim 1.
  • This is the one with the seat over an upper pivot and on the other rotatably connected to the seat support via a lower pivot point rear seat handlebars inclined.
  • the distance of the top pivot the rear seat link to the backrest is smaller than the distance the lower pivot point to the backrest.
  • the invention is based on the consideration that with a chair or Seating with adjustable seat and adjustable backrest the adjustment options from the seat on the one hand and the backrest on the other can be viewed independently.
  • the construction thus points initially two degrees of freedom.
  • the backrest can be adjusted only a single degree of freedom when the articulation of the backrest on the seat support in a simple manner via the rigid with the backrest connected backrest support is realized on the seat support via a single Rotational axis is rotatably attached.
  • the seat can be more complex Have adjustment options, being analogous to the adjustability of the backrest nevertheless it can be assumed that the setting options the seat can be written with a single degree of freedom.
  • the movement can do both a translation and a tilting movement or a combination of different forms of movement.
  • a coupling of the movements of the seat on the one hand and the backrest on the other hand it should first ensure that every possible position a position of the seat is assigned to the backrest, as a result of which the entire Construction is limited to one degree of freedom.
  • a coupling handlebar which is compatible with both Seat and rotatably connected to the backrest handlebar is.
  • the To reach the backrest facing seat area is the rear seat handlebar - starting from its upper pivot point on the seat - inclined forward and downward from the horizontal position.
  • the seat surface has two seat links or two each pair of parallel links articulated on the seat support.
  • the seat handlebars rotatably connected to both the seat support and the seat.
  • An im front area of the seat that is, in the area facing away from the backrest
  • the front half of the seat surface is advantageously used also for length compensation when the backrest is inclined with synchron seat moved backwards and downwards.
  • An alternative to this Execution is a backdrop guide in this front area of the seat, in which there is an axis provided on the underside of the seat in one provided on the seat support and expediently running horizontally Slot is guided.
  • the pivot point for synchronization falls provided coupling link on the seat with the fulcrum of the Seat together with the rear seat link connecting the seat support.
  • the coupling link in the inclined rest position of the backrest opposite the Vertically arranged at an inclination angle of 0 ° ⁇ ⁇ 90 ° is.
  • the chair 1 designed as an office chair according to FIGS. 1 to 4 comprises a fixed one with a stand carrier, not shown, connected 2. With the Seat support 2 is rotatably connected to a backrest 4 via a backrest link 3. The backrest 4 is from the rest position shown in FIGS. 1 and 3 tiltable out backwards. The backrest 4 is inclined by rotation about a pivot point D1. For this is the one with the backrest 4 firmly connected backrest link 3 to the seat support 2 via an axis of rotation 5, where the pivot point D1 essentially through the central axis of this Axis of rotation 5 is given.
  • the seat support 2 is still attached a seat 6 via a front first seat link 7 and a rear second seat link 8 articulated.
  • the front seat link 7 is connected to the seat support 2 via a swivel joint D2 and with the seat 6 via a swivel joint D3 connected.
  • the pivot points D2 and D3 are in turn by corresponding ones Realized axes of rotation 9 and 10, via which the front seat link 7 with the seat support 2 on the one hand and with the seat 6 on the other hand is rotatably connected.
  • the rear seat link 8 is analogous, on the one hand, via a pivot axis 11 realized pivot point D4 with the seat support 2 and on the other hand via a an axis of rotation 12 realized pivot point D5 is rotatably connected to the seat 6.
  • Both the front seat link 7 and the rear seat link 8 are arranged inclined.
  • the inclination of the rear seat link 8 with respect to the vertical V greater than the inclination of the front seat link 7.
  • the rest position V falls vertically with the seat 6 in a front position Half 6a and a rear seat half 6b virtually dividing central longitudinal axis 13 together.
  • the front one lies in relation to this vertical central longitudinal axis 13
  • Seat link 7 on half 6a of seat 6 facing away from backrest 4, while the second seat link 8 on the back 4 facing half 6b of the seat 6 is arranged.
  • Both the front seat handlebar 7 and in the rear seat link 8 the distances between their upper, each with the seat 6 connected pivot points D3 and D5 to the backrest 4 smaller than the distances the lower pivot points D2 and D4 connected to the seat support 2 to the backrest 4.
  • the rear seat link 8 is at least 25% longer than the front seat link 7.
  • the rear seat link 8 is flatter in the rest position according to FIG. 1 and therefore arranged more inclined than the front seat link 7.
  • the backrest support 3 is connected to the seat 6 via a coupling link 14. This is in turn with the backrest support 3 via a corresponding one Axis of rotation 15 given pivot point D6 and with the seat 6 over the Swivel joint D5 connected.
  • the coupling link 14 is opposite the vertical central longitudinal axis 13 in the rest position again inclined at an angle of inclination ⁇ arranged progressively.
  • the angle of inclination with respect to the vertical V is ⁇ in the rest position shown in Figures 1 and 3 with 0 ° ⁇ ⁇ 90 ° about 60 ° to 75 °, preferably (45 ⁇ 10) °, especially about 45 °.
  • the inclination the coupling link 14 runs in the opposite direction to the inclination of the two seat links 7 and 8.
  • An alternative embodiment for realizing this length compensation is in 3 and 4, which in turn shows a corresponding chair in Show the rest position or inclined position of the backrest.
  • a guide 19 is provided instead of the front seat link.
  • This is realized by an elongated hole 20 in which one on the underside 21 the seat 6 with this connected axis 10 'in the direction of arrow 18' is.
  • the elongated hole 20 is at the free end 22 of a support arm 23 of the seat support 2 provided.
  • the leading edge 17 is the Seat 6 with the backrest 4 tilted back in the direction of Arrow 24 shown in Fig. 4 raised.

Landscapes

  • Health & Medical Sciences (AREA)
  • Dentistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Chairs Characterized By Structure (AREA)
  • Chairs For Special Purposes, Such As Reclining Chairs (AREA)
  • Hydrogenated Pyridines (AREA)
EP02010436A 2001-05-11 2002-05-08 Chaise, notamment chaise de bureau Expired - Lifetime EP1256294B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10122945 2001-05-11
DE10122945A DE10122945A1 (de) 2001-05-11 2001-05-11 Stuhl, insbesondere Bürostuhl

Publications (3)

Publication Number Publication Date
EP1256294A2 true EP1256294A2 (fr) 2002-11-13
EP1256294A3 EP1256294A3 (fr) 2004-01-21
EP1256294B1 EP1256294B1 (fr) 2004-09-22

Family

ID=7684421

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02010436A Expired - Lifetime EP1256294B1 (fr) 2001-05-11 2002-05-08 Chaise, notamment chaise de bureau

Country Status (5)

Country Link
US (1) US6709057B2 (fr)
EP (1) EP1256294B1 (fr)
AT (1) ATE276690T1 (fr)
DE (2) DE10122945A1 (fr)
ES (1) ES2227356T3 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008092562A1 (fr) * 2007-01-31 2008-08-07 Armin Sander Chaise, notamment chaise de bureau
EP2129262A1 (fr) * 2007-03-13 2009-12-09 Sapdesign AS Dispositif pour fauteuil à inclinaison siège-dossier ajustable
WO2010097818A1 (fr) * 2009-02-25 2010-09-02 Donati S.P.A. Dispositif pour synchroniser l'inclinaison d'un dossier de siège et d'un siège
US9687077B2 (en) 2011-10-04 2017-06-27 Formway Furniture Limited Chair and supports
US10098466B2 (en) 2013-12-17 2018-10-16 Donati S.P.A. Chair with adjustable backrest

Families Citing this family (45)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002032262A1 (fr) * 2000-10-16 2002-04-25 Kokuyo Co., Ltd. Chaise
NO317791B1 (no) * 2002-01-04 2004-12-13 Stokke As Bevegelig ledd
DE60200399T2 (de) * 2002-07-24 2005-05-04 Ciar S.P.A., Borgo Santa Maria Sitzmöbel mit einem Sitz und einer Rückenlehne
US20090015050A1 (en) * 2004-03-13 2009-01-15 Hans Dehli Articulating chair
US20080067848A1 (en) * 2004-06-14 2008-03-20 Egon Brauning Chair Having A Synchronizing Mechanism
US20060138833A1 (en) * 2004-12-29 2006-06-29 Kerry Brodrecht Chair control for synchronized movement of chair seat and back, and chair having same
DE202005006960U1 (de) * 2005-04-28 2006-08-31 Bock 1 Gmbh & Co. Kg Synchronmechanik
US7806478B1 (en) * 2006-01-04 2010-10-05 Sava Cvek Task chair with dual tilting capabilities
EP2010025A4 (fr) * 2006-04-24 2010-11-17 Humanscale Corp Chaise offrant une résistance autoréglable au basculement
DE202006018268U1 (de) * 2006-12-04 2007-02-08 Sato Office Gmbh Sitz mit einer Sitzplatte und einer Rückenlehne
CA2895942A1 (fr) 2007-03-13 2008-09-13 Hni Technologies Inc. Systeme dynamique de support lombaire pour dossier
ITTO20070398A1 (it) * 2007-06-06 2008-12-07 Malenotti S R L "sedia con schienale oscillante"
CN201123561Y (zh) * 2007-09-06 2008-10-01 陈登慧 椅子结构
WO2009153811A1 (fr) * 2008-06-17 2009-12-23 Co.Fe.Mo. S.P.A. Dispositif de réglage pour chaises
JP5467753B2 (ja) * 2008-10-21 2014-04-09 株式会社イトーキ ロッキング椅子
JP2010099445A (ja) * 2008-12-17 2010-05-06 Itoki Corp ロッキング椅子
CA2788083C (fr) * 2010-02-26 2017-10-24 Donati S.P.A. Dispositif pour la synchronisation du siege et du dossier d'une chaise
AU2011250605B2 (en) 2010-05-05 2016-06-16 Allsteel Inc. Moveable and demountable wall panel system for butt-glazed wall panels
WO2012053381A1 (fr) * 2010-10-19 2012-04-26 株式会社岡村製作所 Siège à accoudoir
US20130175841A1 (en) 2012-01-11 2013-07-11 James W. Finck Reclining seat assembly
US9504326B1 (en) 2012-04-10 2016-11-29 Humanscale Corporation Reclining chair
KR20150052196A (ko) * 2012-09-05 2015-05-13 고드레지 앤드 보이스 매뉴팩쳐링 컴퍼니 리미티드 조정가능한 등받이 및 착석부를 가지는 의자
US9706845B2 (en) 2012-09-20 2017-07-18 Steelcase Inc. Chair assembly
CA2906736C (fr) 2013-03-15 2021-11-02 Hni Technologies Inc. Chaise ayant une flexion arriere activee
DE102014003676A1 (de) 2014-03-14 2015-09-17 Bock 1 Gmbh & Co. Kg Stuhl, insbesondere Bürostuhl
CN103876498B (zh) * 2014-03-26 2016-08-24 汕头市丽时家具有限公司 座椅底盘和具有该座椅底盘的座椅
CN106455821A (zh) 2014-04-17 2017-02-22 Hni技术公司 椅子和椅子控制组件、系统和方法
USD731833S1 (en) 2014-04-17 2015-06-16 Allsteel Inc. Chair
WO2015160693A1 (fr) 2014-04-17 2015-10-22 Hni Technologies Inc. Support lombaire souple
DE102014006058B4 (de) 2014-04-26 2017-03-23 Grupo Forma 5, S.L.U. Bürostuhl mit Synchronmechanik
US9801470B2 (en) 2014-10-15 2017-10-31 Hni Technologies Inc. Molded chair with integrated support and method of making same
USD743180S1 (en) 2014-10-15 2015-11-17 Hni Technologies Inc. Chair
CA2981528A1 (fr) 2015-04-13 2016-10-20 Steelcase Inc. Agencement de siege
US10966527B2 (en) 2017-06-09 2021-04-06 Steelcase Inc. Seating arrangement and method of construction
US10194750B2 (en) 2015-04-13 2019-02-05 Steelcase Inc. Seating arrangement
US11259637B2 (en) 2015-04-13 2022-03-01 Steelcase Inc. Seating arrangement
US9713381B2 (en) 2015-06-11 2017-07-25 Davis Furniture Industries, Inc. Chair
DE102015111946A1 (de) * 2015-07-22 2017-01-26 Bock 1 Gmbh & Co. Kg Mechanik für einen Bürostuhl
DE102015216058A1 (de) 2015-08-21 2017-02-23 Armin Sander Bürostuhl
GB2553750B (en) 2016-06-28 2019-06-05 Posturite Ltd Seat tilting mechanism
US10383448B1 (en) 2018-03-28 2019-08-20 Haworth, Inc. Forward tilt assembly for chair seat
PL3556252T3 (pl) 2018-04-17 2020-11-16 L&P Property Management Company Mechanizm przechyłu dla krzesła i krzesło
AU2020224628A1 (en) 2019-02-21 2021-08-26 Steelcase Inc. Body support assembly and methods for the use and assembly thereof
US11357329B2 (en) 2019-12-13 2022-06-14 Steelcase Inc. Body support assembly and methods for the use and assembly thereof
US11197548B2 (en) * 2019-12-16 2021-12-14 Allseating Corporation Reclining control system for a chair

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DE3735256A1 (de) 1987-10-17 1989-04-27 Ljubomir Nikov Stuhl oder sessel mit synchron verstellbarer neigung von rueckenlehne und sitz
DE4219599A1 (de) 1992-06-16 1993-12-23 Sdm Hansen Ag St Margrethen Synchronverstelleinrichtung für Bürostühle oder dergleichen

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DE3617624A1 (de) * 1986-05-26 1987-12-03 Drabert Soehne Stuhl
DE3916474A1 (de) * 1989-05-20 1990-11-22 Roeder Soehne Sitzmoebelfab Stuhl, insbesondere arbeits- oder buerostuhl
DE4019876A1 (de) * 1990-06-22 1992-01-02 Simon Desanta Stuhl, insbesondere buerostuhl
IE66531B1 (en) * 1991-05-21 1996-01-24 Ashfield Eng Co Wexford Ltd A chair tilting mechanism
US5775774A (en) * 1996-08-12 1998-07-07 Okano; Hiroshi Tilt mechanism for chairs
DE19726160A1 (de) * 1997-06-20 1998-12-24 Johannes Uhlenbrock Sitzmöbel, insbesondere Bürodrehstuhl

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3735256A1 (de) 1987-10-17 1989-04-27 Ljubomir Nikov Stuhl oder sessel mit synchron verstellbarer neigung von rueckenlehne und sitz
DE4219599A1 (de) 1992-06-16 1993-12-23 Sdm Hansen Ag St Margrethen Synchronverstelleinrichtung für Bürostühle oder dergleichen

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008092562A1 (fr) * 2007-01-31 2008-08-07 Armin Sander Chaise, notamment chaise de bureau
EP2129262A1 (fr) * 2007-03-13 2009-12-09 Sapdesign AS Dispositif pour fauteuil à inclinaison siège-dossier ajustable
EP2129262A4 (fr) * 2007-03-13 2011-12-21 Sapdesign As Dispositif pour fauteuil à inclinaison siège-dossier ajustable
US8434822B2 (en) 2007-03-13 2013-05-07 Sapdesign As Furniture device with adjustable angle between the seat and the back of the piece of furniture
WO2010097818A1 (fr) * 2009-02-25 2010-09-02 Donati S.P.A. Dispositif pour synchroniser l'inclinaison d'un dossier de siège et d'un siège
CN101951810A (zh) * 2009-02-25 2011-01-19 多纳蒂合资公司 用于协调椅背和座部之间倾斜的装置
CN101951810B (zh) * 2009-02-25 2014-09-03 多纳蒂合资公司 用于协调椅背和座部之间倾斜的装置
US8973995B2 (en) 2009-02-25 2015-03-10 Donati S.P.A. Device for synchronizing the tilt of a chair back and seat
US9687077B2 (en) 2011-10-04 2017-06-27 Formway Furniture Limited Chair and supports
US9901176B2 (en) 2011-10-04 2018-02-27 Formway Furniture Limited Chair and supports
US10098466B2 (en) 2013-12-17 2018-10-16 Donati S.P.A. Chair with adjustable backrest

Also Published As

Publication number Publication date
US20040026973A1 (en) 2004-02-12
ATE276690T1 (de) 2004-10-15
DE50201066D1 (de) 2004-10-28
US6709057B2 (en) 2004-03-23
ES2227356T3 (es) 2005-04-01
EP1256294B1 (fr) 2004-09-22
DE10122945A1 (de) 2002-12-12
EP1256294A3 (fr) 2004-01-21

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