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EP0995371B1 - Chaise de bureau avec assise réglable en inclinaison - Google Patents

Chaise de bureau avec assise réglable en inclinaison Download PDF

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Publication number
EP0995371B1
EP0995371B1 EP99120668A EP99120668A EP0995371B1 EP 0995371 B1 EP0995371 B1 EP 0995371B1 EP 99120668 A EP99120668 A EP 99120668A EP 99120668 A EP99120668 A EP 99120668A EP 0995371 B1 EP0995371 B1 EP 0995371B1
Authority
EP
European Patent Office
Prior art keywords
rotary shaft
adjustment
rotation
functional part
angle
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
EP99120668A
Other languages
German (de)
English (en)
Other versions
EP0995371A1 (fr
Inventor
Dirk Hüsemann
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.)
Drabert GmbH
Original Assignee
Drabert GmbH
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 Drabert GmbH filed Critical Drabert GmbH
Publication of EP0995371A1 publication Critical patent/EP0995371A1/fr
Application granted granted Critical
Publication of EP0995371B1 publication Critical patent/EP0995371B1/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
    • A47C1/022—Reclining or easy chairs having independently-adjustable supporting parts
    • A47C1/024—Reclining or easy chairs having independently-adjustable supporting parts the parts, being the back-rest, or the back-rest and seat unit, having adjustable and lockable inclination
    • 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
    • A47C1/024—Reclining or easy chairs having independently-adjustable supporting parts the parts, being the back-rest, or the back-rest and seat unit, having adjustable and lockable inclination
    • A47C1/026—Reclining or easy chairs having independently-adjustable supporting parts the parts, being the back-rest, or the back-rest and seat unit, having adjustable and lockable inclination by means of peg-and-notch or pawl-and-ratchet mechanism

Definitions

  • the invention relates to an office chair a seat support that is one horizontal and transverse axis in a support frame with adjustable inclination is, the tilt adjustment by means of an eccentric rotary shaft, those with at least one concentric Shaft part in a pivot bearing of the support frame is stored and the at least an eccentric shaft part (eccentric) has that in an eccentric bearing Seat carrier runs such that a Angle adjustment made by the seat user the inclination of the rotary shaft Seat support relative to the support frame changed.
  • Eccentric adjustments are certain Limits self-locking, i.e. they change their angle of rotation position set by the seat user Not. However, that applies then no longer when the eccentrics that in an eccentric bearing of the seat support are positioned with a excessive body weight of the seat user or with a too strong dynamic Behavior of the seat user is burdened that are e.g. in tremors the eccentric bearing affects. Then can it leads to unwanted adjustments of the Seat inclination come.
  • the object of the invention is an office chair of the aforementioned type with a Tilt adjustment of the seat so to improve that unwanted pretense not the seat inclination may occur.
  • the eccentric rotary shaft one Has handling part that is relative to Functional part of the rotary shaft is rotatable, and that between the functional part of the Rotary shaft and the support frame a disengageable There is locking intervention when not disengaged, the angle of rotation adjustment of the functional part of the Blocked rotation shaft, being a first Angle of rotation range of the seat user on Handling part of the rotary shaft executed Angle of rotation adjustment by means of a conversion gear in a disengagement movement of the blocking intervention is implemented and a subsequent second angle range that of the seat user on the handling part the rotary shaft adjustment via a driver stop between the handling part and the Functional part of the rotary shaft an analog Rotation angle adjustment of the functional part the rotating shaft.
  • Office chair initially has the Advantage that its ease of use when adjusting the seat inclination preserved.
  • the seat user operates only one rotary shaft as before and thereby adjusts the seat inclination in the way you want.
  • defined transition between a first and second rotation angle range the rotating shaft remains in the seat user Normally undetected and unnoticed, there the successive rotation angle ranges the rotary shaft only internal Functional processes concern.
  • a particularly useful construction the locking intervention exists according to claim 2 in that this is in the form of a Functional part of the rotating shaft Helical gear teeth formed is that in the non-disengaged state with one fixed to the supporting frame Spur gear toothing is engaged, whereby on the functional part of the rotary shaft sitting spur gear teeth by a axial displacement movement on the rotary shaft can be disengaged against the pressure of a locking spring is.
  • Such a lockout between the functional part of the rotary shaft and the support frame is easy and inexpensive to manufacture.
  • bevels can be turned in both directions the rotary shaft is the same be so that the seat user the rotating shaft optionally in one or the other direction of rotation can and always rotate desired target of an inclination adjustment reached the seat.
  • Support frame 4 of an office chair is a Die-cast molding in which the seat support 5 (consisting of the two lateral Mounting rails 6 and the crosshead 7) inclination adjustable.
  • the seat support 5 (consisting of the two lateral Mounting rails 6 and the crosshead 7) inclination adjustable.
  • this purpose in the middle of the seat support a transverse axis 8 is provided, the End pieces are held in the support frame and on which the seat support is facing forward or tilted backwards can.
  • the desired inclination of the seat support 5 is by means of the manual to be operated eccentric rotary shaft 9 set.
  • This consists in detail of the Handling part 10, in the illustration 1 approximately in the outer wall of the Support frame 4 ends. That follows then the functional part 11 of the rotary shaft on the inside of the support frame 4 located.
  • In the illustrated embodiment has the functional part of Rotary shaft on both sides in Area of the mounting rails 6 of the seat support one concentric each Shaft part as a pivot bearing and one each eccentric shaft part as eccentric.
  • Fig. 2 shows that in Fig. 1 on the right Side existing pivot bearing and the one there existing eccentric more precisely.
  • the pivot bearing from which the top cover to Cut away for better visibility is, is due to its two outside Bearing walls 12 shown. These are stationary molded in the support frame 4.
  • this pivot bearing is concentric executed shaft part 13. This closes the eccentric shaft part 14 at the one in an eccentric bearing (not shown) that in the seat support 5 is present, running and its Eccentric stroke the inclination adjustment of the Seat support around its transverse axis (Tilt axis 8) controls.
  • a helical compression spring (Locking spring 15) arranged one axial displacement bushing 16 with the Spur gear teeth 17 permanently in In the direction of the spur gear teeth 18, which is fixed in position on the support frame 4 is. If the handling part 10 of the rotary shaft not activated, then there are Helical gear teeth 17 and 18 in mutual Engaging and blocking any unwanted Rotation angle adjustment of the functional part 11 of the rotary shaft 9.
  • the handling part 10 At the end of the first rotation angle range the handling part 10 reaches the Driver stop 21 (see Fig. 3) so that in the second rotation angle range every further one Rotation angle adjustment of the handling part 10 an analog rotation angle adjustment of the Functional part 11 of the rotary shaft.
  • the seat user then adjusts the eccentric stroke for the desired inclination adjustment the seat.
  • the seat user ends the rotation angle adjustment of the handling part 10 of the Rotary shaft, then the locking spring 15 for immediate and effective blocking of the functional part of the rotary shaft against any undesired further rotation angle adjustment.

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)

Claims (4)

  1. Chaise de bureau
    avec un support de surface d'assise, monté de façon à permettre un réglage d'inclinaison autour d'un axe s'étendant horizontalement et transversalement, dans un cadre support (4),
    le réglage d'inclinaison s'effectuant à l'aide d'un arbre rotatif à excentrique, monté avec au moins une partie d'arbre (13) concentrique dans un palier de rotation du cadre support et présentant une partie d'arbre (14) excentrique qui se déplace dans un palier excentrique du support de surface d'assise, de manière qu'un réglage d'angle de rotation, effectué par l'utilisateur du siège sur l'arbre de rotation, ait comme effet de modifier l'inclinaison du support de surface d'assise, par rapport au cadre support,
       caractérisée
    en ce qu'un arbre rotatif présente une partie de manipulation (10) pouvant tourner par rapport à la partie fonctionnelle (11) de l'arbre rotatif,
    en ce qu'entre la partie fonctionnelle de l'arbre rotatif et le cadre support (4) est prévu un dispositif d'engagement de blocage (17, 18) débrayable, qui, à l'état non-débrayé, bloque le réglage d'angle de rotation de la partie fonctionnelle de l'arbre rotatif,
    et en ce qu'une première plage d'angle de rotation du réglage d'angle de rotation effectué par l'utilisateur du siège sur la partie de manipulation de l'arbre rotatif est convertie, au moyen d'une transmission de conversion (19, 20), en un mouvement de débrayage du dispositif d'engagement de mise en prise de blocage,
    et en ce qu'une deuxième plage d'angle de rotation subséquente du réglage d'angle de rotation, effectué par l'utilisateur du siège sur la partie de manipulation de l'arbre rotatif, provoque, par l'intermédiaire d'une butée d'entraínement (21) entre la partie de manipulation et la partie fonctionnelle de l'arbre rotatif, un réglage d'angle de rotation analogue de la partie fonctionnelle de l'arbre rotatif.
  2. Chaise de bureau selon la revendication 1,
       caractérisée
    en ce que l'engagement de blocage est réalisé sous la forme d'une denture à roue droite (17) montée de façon assujettie à rotation sur la partie fonctionnelle (11) de l'arbre rotatif, denture qui, à l'état non-débrayé, est engrenée avec une denture à roue droite (18) fixée de façon localement fixe sur le cadre support (4),
    et en ce que la denture à roue droite (17), montée sur la partie fonctionnelle de l'arbre rotatif, peut être débrayée par un déplacement axial sur l'arbre rotatif, à l'encontre de la pression exercée par un ressort de retenu (15).
  3. Chaise de bureau selon la revendication 1,
       caractérisée
    en ce que la transmission de conversion est réalisée sous la forme d'une ou plusieurs rampes de franchissement (19, 20), disposées sur des faces d'appui, frontales, situées les unes contre les autres de la partie de manipulation (10) et de la partie fonctionnelle (11) de l'arbre rotatif.
  4. Chaise de bureau selon la revendication 3,
       caractérisée
    en ce que les rampes de franchissement (19, 20) sont réalisées dans les deux sens de rotation de l'arbre rotatif.
EP99120668A 1998-10-21 1999-10-19 Chaise de bureau avec assise réglable en inclinaison Expired - Lifetime EP0995371B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19849522A DE19849522A1 (de) 1998-10-21 1998-10-21 Bürostuhl mit einer Sitzneigungsverstellung
DE19849522 1998-10-21

Publications (2)

Publication Number Publication Date
EP0995371A1 EP0995371A1 (fr) 2000-04-26
EP0995371B1 true EP0995371B1 (fr) 2003-04-02

Family

ID=7885813

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99120668A Expired - Lifetime EP0995371B1 (fr) 1998-10-21 1999-10-19 Chaise de bureau avec assise réglable en inclinaison

Country Status (3)

Country Link
US (1) US6283549B1 (fr)
EP (1) EP0995371B1 (fr)
DE (2) DE19849522A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101172001B (zh) * 2006-10-18 2010-04-14 赛杜斯施托尔股份公司 具有倾斜椅座的椅子

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19922446B8 (de) * 1999-05-07 2009-02-19 Bock-1 Gmbh & Co. Synchronmechanik für eine korrelierte Sitz-Rückenlehnen-Bewegung eines Bürostuhles
DE10033418A1 (de) * 2000-07-08 2002-01-31 Dauphin Friedrich W Gmbh Stuhl, insbesondere Bürostuhl
DE10048783A1 (de) * 2000-09-29 2002-05-29 Stoll Sedus Ag Stuhl mit neigbarem Sitz
DE20216307U1 (de) 2002-10-22 2002-12-19 BOCK 1 GmbH & Co., 92353 Postbauer-Heng Sitzträgervorrichtung zur Sitzneigungsverstellung eines Stuhles
US6916067B2 (en) * 2003-10-09 2005-07-12 Jien-Feng Liu Angle adjusting mechanism for chair
US7445586B2 (en) * 2005-04-15 2008-11-04 John Gibson Combination chair and leg extension apparatus for obesity prophylaxis
ITMI20060022U1 (it) * 2006-01-23 2007-07-24 Donati Spa Dispositivo di regolazione dell'inclinazione dello schienale o della seduta di una sedia
ITCR20070007A1 (it) * 2007-03-27 2008-09-28 L & P Property Management Company Meccanismo di regolazione di sedile a due posizioni di riposo
NO327014B1 (no) * 2007-07-10 2009-04-06 Hag As Anordning ved vippebeslag for stol
US9988094B1 (en) 2015-12-07 2018-06-05 Apple Inc. Internally stiffened body structure
US10383448B1 (en) * 2018-03-28 2019-08-20 Haworth, Inc. Forward tilt assembly for chair seat

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4077596A (en) * 1975-06-18 1978-03-07 Bliss & Laughlin Industries, Incorporated Low silhouette chair tilting control assembly
US4008920A (en) * 1976-02-23 1977-02-22 Uop Inc. Seat back adjuster
DE2902622A1 (de) * 1979-01-24 1980-07-31 Steifensand Friedrich Martin Sitzmoebel, insbesondere buerodrehstuhl
JPS59207112A (ja) * 1983-05-10 1984-11-24 メ−コ−工業株式会社 椅子
DE3616153C1 (de) * 1986-05-14 1987-06-11 Grammer Sitzsysteme Gmbh Sitz,insbesondere Buerostuhl
IT1210753B (it) * 1987-05-20 1989-09-20 Pro Cord Srl Sopporto oscillante per sedie sedili e simili
US4889384A (en) * 1988-07-10 1989-12-26 Leggett & Platt, Incorporated Knee-action chair control
IT1247369B (it) * 1991-03-01 1994-12-12 Loris Miotto Dispositivo meccanico, particolarmente per la movimentazione ed il bloccaggio selettivo di una seduta
US5762399A (en) * 1996-11-13 1998-06-09 Liu; Clement Inclination positioning device for rocking type chairs

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101172001B (zh) * 2006-10-18 2010-04-14 赛杜斯施托尔股份公司 具有倾斜椅座的椅子

Also Published As

Publication number Publication date
EP0995371A1 (fr) 2000-04-26
US6283549B1 (en) 2001-09-04
DE59904823D1 (de) 2003-05-08
DE19849522A1 (de) 2000-04-27

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