EP0995371A1 - 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
EP0995371A1
EP0995371A1 EP99120668A EP99120668A EP0995371A1 EP 0995371 A1 EP0995371 A1 EP 0995371A1 EP 99120668 A EP99120668 A EP 99120668A EP 99120668 A EP99120668 A EP 99120668A EP 0995371 A1 EP0995371 A1 EP 0995371A1
Authority
EP
European Patent Office
Prior art keywords
rotary shaft
functional part
eccentric
seat
shaft
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
EP99120668A
Other languages
German (de)
English (en)
Other versions
EP0995371B1 (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 rotating 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 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 lockout when not disengaged, the angle of rotation adjustment of the functional part of the Blocked rotary shaft, being a first Angle of rotation range of the seat user on Handling part of the rotary shaft executed Angle 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 has the first 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 engagement 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 rotating 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.
  • a lockout between the functional part of the rotating shaft and the support frame is easy and inexpensive to manufacture.
  • bevels can run 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 rotate and always be 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 is installed.
  • the seat support 5 Consisting of the two lateral Mounting rails 6 and the crosshead 7) inclination adjustable is installed.
  • 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 faces forward or tilted backwards can.
  • the desired inclination of the seat support 5 is done manually using the 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.
  • 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 range of rotation every other Rotation angle adjustment of the handling part 10 an analog rotation angle adjustment of the Functional 11 of the rotary shaft.
  • the seat user then adjusts the eccentric stroke for the tilt adjustment desired by him 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 For Special Purposes, Such As Reclining Chairs (AREA)
  • Chairs Characterized By Structure (AREA)
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
DE19849522 1998-10-21
DE19849522A DE19849522A1 (de) 1998-10-21 1998-10-21 Bürostuhl mit einer Sitzneigungsverstellung

Publications (2)

Publication Number Publication Date
EP0995371A1 true EP0995371A1 (fr) 2000-04-26
EP0995371B1 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 (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1169947A1 (fr) * 2000-07-08 2002-01-09 Dauphin Entwicklungs- u. Beteiligungs-GmbH Chaise, notamment chaise de bureau
EP1192876A3 (fr) * 2000-09-29 2003-09-10 Sedus Stoll AG Chaise à assise réglable
DE102006049676A1 (de) * 2006-10-18 2008-04-24 Sedus Stoll Ag Stuhl mit neigbarem Sitz
EP2014195A1 (fr) * 2007-07-10 2009-01-14 Håg Asa Fixation d'inclinaison pour une chaise

Families Citing this family (7)

* 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
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
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

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4008920A (en) * 1976-02-23 1977-02-22 Uop Inc. Seat back adjuster

Family Cites Families (8)

* 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
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

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4008920A (en) * 1976-02-23 1977-02-22 Uop Inc. Seat back adjuster

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1169947A1 (fr) * 2000-07-08 2002-01-09 Dauphin Entwicklungs- u. Beteiligungs-GmbH Chaise, notamment chaise de bureau
US6572191B2 (en) 2000-07-08 2003-06-03 Dauphin Entwicklungs- U. Beteiligungs-Gmbh Chair, in particular office chair, having a synchronous mechanism
EP1192876A3 (fr) * 2000-09-29 2003-09-10 Sedus Stoll AG Chaise à assise réglable
DE102006049676A1 (de) * 2006-10-18 2008-04-24 Sedus Stoll Ag Stuhl mit neigbarem Sitz
EP1967095A3 (fr) * 2006-10-18 2008-10-08 Sedus Stoll AG Chaise avec siège inclinable
DE102006049676B4 (de) * 2006-10-18 2008-12-11 Sedus Stoll Ag Stuhl mit neigbarem Sitz
US7614698B2 (en) 2006-10-18 2009-11-10 Sedus Stoll Aktiengesellschaft Chair with tilting seat
EP2014195A1 (fr) * 2007-07-10 2009-01-14 Håg Asa Fixation d'inclinaison pour une chaise

Also Published As

Publication number Publication date
US6283549B1 (en) 2001-09-04
EP0995371B1 (fr) 2003-04-02
DE19849522A1 (de) 2000-04-27
DE59904823D1 (de) 2003-05-08

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