EP1647207A1 - Chaise - Google Patents

Chaise Download PDF

Info

Publication number
EP1647207A1
EP1647207A1 EP05015402A EP05015402A EP1647207A1 EP 1647207 A1 EP1647207 A1 EP 1647207A1 EP 05015402 A EP05015402 A EP 05015402A EP 05015402 A EP05015402 A EP 05015402A EP 1647207 A1 EP1647207 A1 EP 1647207A1
Authority
EP
European Patent Office
Prior art keywords
seat
backrest
lever
chair according
slider
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
EP05015402A
Other languages
German (de)
English (en)
Other versions
EP1647207B1 (fr
Inventor
Werner Link
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.)
Interstuhl Bueromoebel GmbH and Co KG
Original Assignee
Interstuhl Bueromoebel 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 Interstuhl Bueromoebel GmbH and Co KG filed Critical Interstuhl Bueromoebel GmbH and Co KG
Priority to PL05015402T priority Critical patent/PL1647207T3/pl
Publication of EP1647207A1 publication Critical patent/EP1647207A1/fr
Application granted granted Critical
Publication of EP1647207B1 publication Critical patent/EP1647207B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • A47C1/03255—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
    • A47C1/03272—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest characterised by elastic means with coil springs
    • 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
    • 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
    • A47C1/03283—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest characterised by elastic means with fluid springs

Definitions

  • the present invention relates to a chair with a seat and with a mechanism for tilt-adjustable attachment of the seat to a connected to a center column seat support.
  • Such a chair may be, for example, an office chair, conference chair, visitor chair or the like. It may be the seat and / or the backrest in the inclination adjustable.
  • DE 44 03 123 A1 describes a synchronous adjustment in which the ratio between the inclination of the seat and the inclination of the backrest is adjustable.
  • the synchronous adjustment mechanism is formed by a plurality of articulated parts and a power storage element, in this case a gas spring. Due to the large number of components, however, the known synchronizing mechanisms are relatively complicated and expensive. In addition, the life of the known adjustment mechanisms is limited because of the large number of moving and thus subject to wear parts.
  • a chair is presented with a synchronous adjustment, in which the seat is fixed by means of a first elastically deformable spring element on the chair column.
  • the backrest is attached via a backrest support to a second elastically deformable spring element, which is coupled to the first spring element.
  • the first spring element or the seat surface are also elastically or hingedly connected to the second spring element or the backrest support.
  • Object of the present invention is in contrast to further develop a chair with the features mentioned that only a minimum of mechanically moving parts is required, with a synchro adjustment of seat support and backrest should be feasible and arbitrarily adjustable in a simple manner, and the sequence of movements of the adjustment should be stepless and softer than in previous solutions.
  • a chair with a seat and with a mechanism for tilt-adjustable attachment of the seat to a connected to a center column seat support, wherein the mechanism comprises a toggle lever assembly.
  • the mechanism comprises a toggle lever assembly.
  • the toggle assembly comprises a fixed to a fixed center axis on the seat first lever and a hinged at a fixed axis of rotation on the seat support second lever, wherein the two levers are pivotally connected to each other at a displaceable axis of rotation, and wherein means for connecting the rotation axis the seat are provided.
  • Seat and seat support can be easily connected with each other.
  • the axis of rotation is connected via a telescopic element and another lever with a torsion bar, wherein the lever is connected against rotation with the Torsionsstab.
  • the telescopic element may be formed by a insertable into a receptacle against the force of a compression spring pin.
  • the chair may additionally have a mechanism for tilt adjustment of the backrest.
  • an arcuate rod is provided, on which the slider is mounted. This results in the tilt adjustment of the backrest in a pleasant relaxation position.
  • a slider may be mounted on one side of the seat opposite to the other slider, wherein the two slides are fastened via a respective connecting element on the central axis. The movement of the two sliders is synchronous.
  • the first lever of the toggle lever assembly is rotatably connected to the rotatable central axis, whereby upon lowering of the seat via the first lever, the central axis is rotated and thereby the sliders are moved backwards over the connecting elements. This lowers the backrest together with the seat to the rear.
  • a gas spring may be provided for locking the slider.
  • a seat 1 shows the structure of a seat 1 , which essentially comprises a backrest 2, a seat 3 and a center pillar 4 , which is connected to a subframe, not shown, which can be moved by rollers.
  • the seat 2 has a shell shape with a flat central part 5 and two laterally arranged, in the direction of the backrest 2 raised cheeks 6 .
  • the seat 3 is mounted on the seat post 7 on the center pillar 4.
  • the backrest 2 is connected to the cheeks 6 via two transversely to the backrest 2 arranged L-shaped backrest support 8 , one arm 8a is fixed to the backrest 2 and the other arm 8b hinged to the cheek 6. From the L-shape and the lateral arrangement of the backrest support 8 results in a spacing of the backrest 2 to the rear seating area of the seat 2 below the lower, the seat facing backrest area 9.
  • the arm 8b has a distance from the rear seating area.
  • the backrest supports 8 surround the seated side and can be used as armrests.
  • the backrest 2, the seat 3 and the backrest support 8 are covered with a pad 10a to 10c .
  • Figure 2 clearly shows the seat shape with the flat central part 5 and the raised cheeks 6 for receiving a mechanism for synchronous control of the inclination of the seat and the backrest.
  • the arm 8a, not shown in FIG. 2, of the back support 8 is fixedly connected to a slider 11 which is slidable on an arcuate rod 12 having a circular cross section for producing a vertical base position and an inclined reclining position of the backrest.
  • the articulation of the backrest support is identical to the two inner sides of the cheeks 6.
  • these are each connected via a connecting element 13 with a rotatable central axis 14 .
  • the displacement of the sliders 11 takes place in each case against the spring force of a tension spring 15, so that the sliders 11 and thus the backrest automatically return to the normal position.
  • a gas spring 16 is provided, which is connected to the connecting element 13. If a sufficient pressure in the gas spring 16 constructed, the movement of the connecting element 13 and thus the further displacement of the slider 11 is blocked.
  • the central axis 14 also forms the interface between the tilt adjustment of the backrest and the tilt adjustment of the seat.
  • a toggle lever assembly 17 At the central axis 14 engages a toggle lever assembly 17 , which allows the inclination of the seat 3 with respect to the seat support 7 and controls the inclination adjustment in dependence on the weight shift of the sitter.
  • the toggle lever assembly 17 on the other hand connected to a torsion bar 18 which is fixedly mounted at its ends on the seat 3 and which forms the axis of rotation for the seat 3.
  • the toggle lever arrangement 17 comprises a first axis of rotation formed by the central axis 14, fixedly arranged on the seat 3, a second axis of rotation fixedly arranged on the seat 3 by the torsion bar 18, a stationarily arranged on the seat carrier 7 third rotation axis 19, a displaceable fourth rotation axis 20 and a displaceable fifth rotation axis 21.
  • a first lever 22 is arranged rotationally fixed and connected via the fourth axis of rotation 20 with a second lever 23 which is articulated to the seat support 7.
  • the levers 22 and 23 are moved about the axis of rotation 20 against each other and a receptacle 25 and a pin 26 pushed together against the spring force of a compression spring 27 .
  • the force is transmitted to a further lever 28, which is deflected and causes the torsion of the torsion bar 18, because this further lever 28 is secured against rotation with the torsion bar 18.
  • a spindle 29 By means of a spindle 29 , the force for the deflection of the lever 28 can be additionally adjusted.
  • the torsion bar 18 serves to return the seat 3 at discharge.
  • FIGS. 4a and 4b The inclination possibilities of seat 3 and backrest 2 from a basic position ( FIGS. 4a and 4b) into a relax position ( FIGS. 5a and 5b) can be seen from the sequence of FIGS. 4a to 5b. Possible weight shifts of the sitter are indicated by arrows.

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)
  • Chair Legs, Seat Parts, And Backrests (AREA)
EP05015402A 2004-10-18 2005-07-15 Chaise Active EP1647207B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL05015402T PL1647207T3 (pl) 2004-10-18 2005-07-15 Krzesło

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102004050853A DE102004050853A1 (de) 2004-10-18 2004-10-18 Stuhl

Publications (2)

Publication Number Publication Date
EP1647207A1 true EP1647207A1 (fr) 2006-04-19
EP1647207B1 EP1647207B1 (fr) 2008-03-05

Family

ID=35588918

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05015402A Active EP1647207B1 (fr) 2004-10-18 2005-07-15 Chaise

Country Status (10)

Country Link
US (1) US7431397B2 (fr)
EP (1) EP1647207B1 (fr)
CN (1) CN100473307C (fr)
AT (1) ATE387873T1 (fr)
DE (2) DE102004050853A1 (fr)
DK (1) DK1647207T3 (fr)
ES (1) ES2300905T3 (fr)
HK (1) HK1090264A1 (fr)
PL (1) PL1647207T3 (fr)
PT (1) PT1647207E (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008007569A1 (de) 2008-02-05 2009-08-06 Wilkhahn Wilkening + Hahne Gmbh + Co. Sitzmöbel

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITMI20070944A1 (it) * 2007-05-09 2008-11-10 L & P Property Management Co Dispositivo di regolazione della seduta, particolarmente per sedie regolabili.
KR20150052196A (ko) * 2012-09-05 2015-05-13 고드레지 앤드 보이스 매뉴팩쳐링 컴퍼니 리미티드 조정가능한 등받이 및 착석부를 가지는 의자
US9713381B2 (en) 2015-06-11 2017-07-25 Davis Furniture Industries, Inc. Chair
US10383448B1 (en) 2018-03-28 2019-08-20 Haworth, Inc. Forward tilt assembly for chair seat

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8529663U1 (de) * 1985-10-18 1987-11-19 Klöber GmbH & Co, 7770 Überlingen Arbeitsstuhl mit Neigungsmechanik von Sitzschale und Rückenlehne
US4858993A (en) * 1987-08-20 1989-08-22 Klober Gmbh & Co. Work chair comprising a swivelling seat shell
DE9002416U1 (de) * 1990-03-02 1990-05-03 Roeder GmbH, 6000 Frankfurt Arbeitsstuhl mit einem Sitzträger und einem Rückenlehnenträger
DE4403123A1 (de) 1994-02-02 1995-08-03 Link Wilhelm Kg Stuhl, insbesondere Bürostuhl
DE29704906U1 (de) 1997-03-18 1997-05-22 Interstuhl Büromöbel GmbH & Co. KG, 72469 Meßstetten Stuhl, insbesondere Bürostuhl
US20030052521A1 (en) * 2001-09-20 2003-03-20 Nelson Patrick C. Chair

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NO160896C (no) * 1986-05-09 1989-06-14 Jurek Buchacz Stillbar sitteanordning.
EP0339089B1 (fr) * 1987-10-24 1992-08-19 Kokuyo Co., Ltd. Chaise basculante
US4892354A (en) * 1989-06-30 1990-01-09 Shepherd Products U.S., Inc. Chair seat tilt control
US5207479A (en) * 1990-06-06 1993-05-04 Kimball International, Inc. Chair control mechanism
CA2116079C (fr) * 1993-02-22 2005-12-27 Benjamin Cowan Chaise
US5511852A (en) * 1993-02-25 1996-04-30 Herman Miller, Inc. Adjustable backrest for a chair
US5388889A (en) * 1993-09-23 1995-02-14 Westinghouse Electric Corporation Torque control mechanism for chairs
US20030132653A1 (en) * 2001-10-18 2003-07-17 Doug Thole Tension control mechanism for a chair

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8529663U1 (de) * 1985-10-18 1987-11-19 Klöber GmbH & Co, 7770 Überlingen Arbeitsstuhl mit Neigungsmechanik von Sitzschale und Rückenlehne
US4858993A (en) * 1987-08-20 1989-08-22 Klober Gmbh & Co. Work chair comprising a swivelling seat shell
DE9002416U1 (de) * 1990-03-02 1990-05-03 Roeder GmbH, 6000 Frankfurt Arbeitsstuhl mit einem Sitzträger und einem Rückenlehnenträger
DE4403123A1 (de) 1994-02-02 1995-08-03 Link Wilhelm Kg Stuhl, insbesondere Bürostuhl
DE29704906U1 (de) 1997-03-18 1997-05-22 Interstuhl Büromöbel GmbH & Co. KG, 72469 Meßstetten Stuhl, insbesondere Bürostuhl
US20030052521A1 (en) * 2001-09-20 2003-03-20 Nelson Patrick C. Chair

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008007569A1 (de) 2008-02-05 2009-08-06 Wilkhahn Wilkening + Hahne Gmbh + Co. Sitzmöbel

Also Published As

Publication number Publication date
HK1090264A1 (en) 2006-12-22
ATE387873T1 (de) 2008-03-15
US7431397B2 (en) 2008-10-07
US20060082201A1 (en) 2006-04-20
EP1647207B1 (fr) 2008-03-05
CN100473307C (zh) 2009-04-01
PT1647207E (pt) 2008-04-28
DK1647207T3 (da) 2008-06-30
PL1647207T3 (pl) 2008-07-31
DE502005003069D1 (de) 2008-04-17
CN1762285A (zh) 2006-04-26
DE102004050853A1 (de) 2006-04-20
ES2300905T3 (es) 2008-06-16

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