EP1647207B1 - Chaise - Google Patents

Chaise Download PDF

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Publication number
EP1647207B1
EP1647207B1 EP05015402A EP05015402A EP1647207B1 EP 1647207 B1 EP1647207 B1 EP 1647207B1 EP 05015402 A EP05015402 A EP 05015402A EP 05015402 A EP05015402 A EP 05015402A EP 1647207 B1 EP1647207 B1 EP 1647207B1
Authority
EP
European Patent Office
Prior art keywords
seat
backrest
lever
axis
chair according
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.)
Active
Application number
EP05015402A
Other languages
German (de)
English (en)
Other versions
EP1647207A1 (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 seat post connected to a center column, the mechanism comprising a toggle assembly having a fixed to a stationary center axis on the seat first lever and a fixed axis of rotation on the seat support articulated second lever comprises, wherein the two levers are pivotally connected to each other at a displaceable axis of rotation, and wherein means for connecting the displaceable axis of rotation are provided with the seat.
  • 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.
  • the DE 44 03 123 A1 describes a synchronizing adjustment in which the relationship between the seat trim and the backrest inclination 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 are the known synchronizing mechanisms but relatively expensive 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 with a synchronous adjustment is presented 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.
  • toggle lever assembly By using a toggle lever assembly can be in the in the DE 90 02 416 U1 chair described the tilting movements are arbitrarily continuously adjusted, and the movements are optimally soft.
  • the number of mechanical elements for the adjustment, such as joints, can be reduced to a minimum.
  • complicated mechanical spring elements and wear-endangered gear or translation devices are completely eliminated.
  • Seat and seat support can be easily connected with each other.
  • Object of the present invention is in contrast to further develop a chair with the features mentioned that with the simplest possible, mechanically robust means influencing the dependent of the pressurization of the seated tilt adjustment of the seat is possible.
  • 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 to recognize which essentially comprises a backrest 2, a seat 3 and a center column 4 , which is connected to a not shown, on wheels movable underframe.
  • 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 , whose 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 .
  • FIG. 2 clearly shows the seat shape with the flat middle part 5 and the raised cheeks 6 for receiving a mechanism for synchronous control of the inclination of the seat and the backrest.
  • the Indian FIG. 2 not shown arm 8a of the backrest support 8 is fixedly connected to a slider 11 which is displaceable on an arcuate rod 12 with a round cross section for generating a vertical base position and an inclined relaxation 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 assembly 17 comprises a formed by the central axis 14, fixed to the seat 3 arranged first axis of rotation, formed by the torsion bar 18, fixedly disposed on the seat 3 second axis of rotation, a stationary on the seat support 7 arranged 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 to 5b From the sequence of FIGS. 4a to 5b are the inclination possibilities of seat 3 and backrest 2 from a basic position ( FIGS. 4a and 4b ) in a relaxation position ( FIGS. 5a and 5b ) can be seen. 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)
  • Chair Legs, Seat Parts, And Backrests (AREA)
  • Chairs For Special Purposes, Such As Reclining Chairs (AREA)

Claims (8)

  1. Chaise (1) dotée d'un siège (3) et d'un mécanisme de fixation du siège (3) réglable en inclinaison sur un support de siège (7) relié à une colonne médiane (4), le mécanisme comportant un agencement de leviers à genouillère (17), l'agencement de leviers à genouillère (17) comportant un premier levier (22) fixé sur un axe médian fixe (14) sur le siège (3) et un second levier (23) articulé sur un axe de rotation fixe (19) sur le support de siège (7), les deux leviers (22, 23) étant reliés entre eux de manière articulée sur un axe de rotation déplaçable(20), et des moyens (18, 25, 26, 27, 28) pour relier l'axe de rotation déplaçable (20) au siège (3) étant prévus, caractérisée en ce que l'axe de rotation déplaçable (20) est relié par l'intermédiaire d'un élément télescopique (25, 26, 27) et d'un autre levier (28) à une barre de torsion (18), l'autre levier (28) étant relié sans possibilité de rotation à la barre de torsion (18).
  2. Chaise selon la revendication 1, caractérisée en ce que l'élément télescopique est réalisé par une tige (26) pouvant être introduite dans un logement (25) à l'encontre de la force d'un ressort de pression (27).
  3. Chaise selon la revendication 1 ou 2, caractérisée en ce qu'un mécanisme de réglage de l'inclinaison d'un dossier (2) est prévu.
  4. Chaise selon la revendication 3, caractérisée en ce que le dossier (2) est relié par l'intermédiaire d'un support de dossier (8) à une pièce coulissante (11) qui est montée de manière mobile sur le siège (3).
  5. Chaise selon la revendication 4, caractérisée en ce qu'une barre en forme d'arc (12) est prévue, sur laquelle est montée la pièce coulissante (11).
  6. Chaise selon la revendication 4 ou 5, caractérisée en ce qu'une pièce coulissante (11) est montée respectivement sur un côté du siège (3) à l'opposé de l'autre pièce coulissante (11) et en ce que les deux pièces coulissantes (11) sont fixées chacune par l'intermédiaire d'un élément de liaison (13) sur l'axe médian (14).
  7. Chaise selon la revendication 6, caractérisée en ce que le premier levier (22') de l'agencement de leviers à genouillère (17) est relié de manière fixe en rotation à l'axe médian rotatif (14).
  8. Chaise selon la revendication 4 à 6, caractérisée en ce qu'un ressort à gaz (16) est prévu pour arrêter la pièce coulissante (11).
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 EP1647207A1 (fr) 2006-04-19
EP1647207B1 true 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)

Families Citing this family (5)

* 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.
DE102008007569A1 (de) 2008-02-05 2009-08-06 Wilkhahn Wilkening + Hahne Gmbh + Co. Sitzmöbel
US9833075B2 (en) * 2012-09-05 2017-12-05 Godrej & Boyce Mfg Co Ltd Chair with adjustable backrest and seat
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

Family Cites Families (14)

* 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
NO160896C (no) * 1986-05-09 1989-06-14 Jurek Buchacz Stillbar sitteanordning.
DE3727784A1 (de) * 1987-08-20 1989-03-02 Kloeber Gmbh & Co Arbeitsstuhl mit verschwenkbarer sitzschale
US4966411A (en) * 1987-10-24 1990-10-30 Kokuyo Co., Ltd. Chair provided with a backrest
US4892354A (en) * 1989-06-30 1990-01-09 Shepherd Products U.S., Inc. Chair seat tilt control
DE9002416U1 (de) * 1990-03-02 1990-05-03 Roeder GmbH, 6000 Frankfurt Arbeitsstuhl mit einem Sitzträger und einem Rückenlehnenträger
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
DE4403123C2 (de) 1994-02-02 2003-06-18 Link Wilhelm Kg Stuhl, insbesondere Bürostuhl
DE29704906U1 (de) 1997-03-18 1997-05-22 Interstuhl Büromöbel GmbH & Co. KG, 72469 Meßstetten Stuhl, insbesondere Bürostuhl
US6644741B2 (en) * 2001-09-20 2003-11-11 Haworth, Inc. Chair
US20030132653A1 (en) * 2001-10-18 2003-07-17 Doug Thole Tension control mechanism for a chair

Also Published As

Publication number Publication date
PL1647207T3 (pl) 2008-07-31
ATE387873T1 (de) 2008-03-15
PT1647207E (pt) 2008-04-28
US20060082201A1 (en) 2006-04-20
DE502005003069D1 (de) 2008-04-17
DE102004050853A1 (de) 2006-04-20
DK1647207T3 (da) 2008-06-30
US7431397B2 (en) 2008-10-07
EP1647207A1 (fr) 2006-04-19
CN1762285A (zh) 2006-04-26
HK1090264A1 (en) 2006-12-22
CN100473307C (zh) 2009-04-01
ES2300905T3 (es) 2008-06-16

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