EP1258210A3 - Synchronised mechanism for a coupled seat- and backrest-movement in an office chair - Google Patents

Synchronised mechanism for a coupled seat- and backrest-movement in an office chair Download PDF

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Publication number
EP1258210A3
EP1258210A3 EP02009186A EP02009186A EP1258210A3 EP 1258210 A3 EP1258210 A3 EP 1258210A3 EP 02009186 A EP02009186 A EP 02009186A EP 02009186 A EP02009186 A EP 02009186A EP 1258210 A3 EP1258210 A3 EP 1258210A3
Authority
EP
European Patent Office
Prior art keywords
movement
backrest
support
seat
office chair
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
EP02009186A
Other languages
German (de)
French (fr)
Other versions
EP1258210A2 (en
EP1258210B1 (en
Inventor
Hermann Bock
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.)
Bock 1 GmbH and Co KG
Original Assignee
Bock 1 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 Bock 1 GmbH and Co KG filed Critical Bock 1 GmbH and Co KG
Publication of EP1258210A2 publication Critical patent/EP1258210A2/en
Publication of EP1258210A3 publication Critical patent/EP1258210A3/en
Application granted granted Critical
Publication of EP1258210B1 publication Critical patent/EP1258210B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

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
    • A47C1/03205—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest 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
    • A47C1/031—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
    • A47C1/03294—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
    • A47C1/03261—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
    • A47C1/03274—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 of torsion type

Abstract

Eine Synchronmechanik für die korrelierte Sitz-Rückenlehnen-Bewegung eines Bürostuhls ist versehen mit einem auf einer Stuhlsäule (4) plazierbaren Basisträger (2), einem um eine Querachse schwenkbaren, bei seinem vorderen Ende (21) gelenkig mit dem Basisträger (2) verbundenen Sitzträger (6) und einem ebenfalls um eine Querachse schwenkbaren, gelenkig mit dem Basisträger (2) verbundenen Rückenlehnenträger (7). Letzterer ist mit dem Sitzträger (6) derart gekoppelt, daß eine Schwenkbewegung der Rückenlehne nach hinten eine Absenkbewegung des rückwärtigen Bereichs des Sitzträgers (6) induziert. Das Gelenk zwischen Basisträger (2) und Sitzträger (6) ist derart als Dreh-Schiebe-Gelenk (22) ausgebildet, daß der Absenkbewegung des Sitzträgers (6) eine horizontale Schiebebewegung überlagert ist.

Figure 00000001
A synchronous mechanism for the correlated seat-backrest movement of an office chair is provided with a base support (2) which can be placed on a chair column (4), a seat support which can be pivoted about a transverse axis and is articulated at its front end (21) to the base support (2) (6) and a backrest support (7), which is also pivotable about a transverse axis and is articulated to the base support (2). The latter is coupled to the seat support (6) in such a way that a pivoting movement of the backrest induces a lowering movement of the rear region of the seat support (6). The joint between the base support (2) and seat support (6) is designed as a rotary-slide joint (22) in such a way that a horizontal sliding movement is superimposed on the lowering movement of the seat support (6).
Figure 00000001
EP02009186A 2001-05-18 2002-04-25 Synchronised mechanism for a coupled seat- and backrest-movement in an office chair Expired - Fee Related EP1258210B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10125994A DE10125994A1 (en) 2001-05-18 2001-05-18 Synchronous mechanism for a correlated movement of the seat backrest of an office chair
DE10125994 2001-05-18

Publications (3)

Publication Number Publication Date
EP1258210A2 EP1258210A2 (en) 2002-11-20
EP1258210A3 true EP1258210A3 (en) 2004-01-14
EP1258210B1 EP1258210B1 (en) 2006-03-15

Family

ID=7686429

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02009186A Expired - Fee Related EP1258210B1 (en) 2001-05-18 2002-04-25 Synchronised mechanism for a coupled seat- and backrest-movement in an office chair

Country Status (3)

Country Link
US (1) US6886888B2 (en)
EP (1) EP1258210B1 (en)
DE (2) DE10125994A1 (en)

Families Citing this family (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10241562A1 (en) 2002-09-07 2004-03-18 Bock-1 Gmbh & Co. Synchronous mechanism for office chairs
ITMI20022194A1 (en) * 2002-10-16 2004-04-17 Icf Spa CHAIR WITH SEAT AND FURNITURE BACK.
EP1624775A1 (en) * 2003-05-21 2006-02-15 CO.FE.MO. S.p.A. Modular mechanism for office chairs and the like
US7048335B2 (en) * 2003-06-05 2006-05-23 Steelcase Development Corporation Seating unit with crossbar seat support
DE10357165A1 (en) 2003-12-06 2005-06-30 Bock-1 Gmbh & Co. Synchronous mechanism for office chairs
US6969116B2 (en) 2003-12-30 2005-11-29 Hni Technologies Inc. Chair with backward and forward passive tilt capabilities
US20090015050A1 (en) * 2004-03-13 2009-01-15 Hans Dehli Articulating chair
US20060138833A1 (en) * 2004-12-29 2006-06-29 Kerry Brodrecht Chair control for synchronized movement of chair seat and back, and chair having same
DE102005003383B3 (en) * 2005-01-24 2006-08-03 Bock 1 Gmbh & Co. Kg synchronous mechanism
DE102005009419A1 (en) * 2005-03-02 2006-09-07 Recaro Aircraft Seating Gmbh & Co. Kg Seat
DE102005017143B4 (en) * 2005-04-13 2007-06-21 Bock 1 Gmbh & Co. Kg Device for seat tilt adjustment of a chair
PT1985206E (en) * 2006-02-15 2013-12-02 Vicente Berbegal Perez Office chair
KR200431307Y1 (en) * 2006-08-22 2006-11-23 한일정공(주) Locking device
DE102006047889B4 (en) * 2006-10-10 2008-10-23 Interstuhl Büromöbel GmbH & Co. KG Seating furniture, in particular office chair
DE102007022015A1 (en) * 2006-10-13 2008-04-17 Bock 1 Gmbh & Co. Kg Mechanics for an office chair
US8215135B2 (en) * 2007-04-20 2012-07-10 Illinois Tool Works, Inc. Appliance latch with power failure unlock
DE102007040175B3 (en) 2007-05-07 2008-06-05 Bock 1 Gmbh & Co. Kg Synchronism mechanism for office chair, has spring arrangement with helical spring locked in area of winding channel against spring deformation, where channel acts on latch of adjusting arrangement, and has variable engagement depths
DE102007021782B3 (en) * 2007-05-07 2008-09-18 Bock 1 Gmbh & Co. Kg Synchronous mechanism for office chairs
ITTO20070398A1 (en) * 2007-06-06 2008-12-07 Malenotti S R L "CHAIR WITH OSCILLATING BACKREST"
DE102007059986A1 (en) * 2007-12-11 2009-06-18 Sedus Stoll Ag office chair
WO2009134451A1 (en) 2008-05-02 2009-11-05 Haworth, Inc. Tension mechanism for a weight-responsive chair
DE102009010234A1 (en) * 2009-02-24 2010-09-02 Klöber GmbH Synchronization mechanism for office chair, has spring lever with rotation point that is arranged in lower region of plate, where front pivotable part of spring lever is directly pressed on pressure spring
DE202009006922U1 (en) * 2009-05-13 2010-09-23 Bock 1 Gmbh & Co. Kg synchronous mechanism
IT1403471B1 (en) * 2010-12-03 2013-10-17 Imarc Spa MECHANISM FOR OFFICE CHAIRS PROVIDED WITH A SWINGING FORCE ADJUSTMENT DEVICE.
USD697726S1 (en) * 2012-09-20 2014-01-21 Steelcase Inc. Chair
US9801471B2 (en) 2014-04-17 2017-10-31 Hni Technologies Inc. Chair and chair control assemblies, systems, and methods
WO2016074723A1 (en) * 2014-11-13 2016-05-19 L&P Property Management Company Tilt mechanism for a weight-responsive seating furniture
US11690455B2 (en) 2020-09-18 2023-07-04 Dinkar Chellaram Synchronous-tilt reclining chair

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2533428A1 (en) * 1982-09-23 1984-03-30 Strafor Sa Seat mechanism with a differential movement for tip-up seat
US5308144A (en) * 1989-05-20 1994-05-03 Roeder Gmbh Chair, in particular work or office chair
US5971481A (en) * 1996-10-11 1999-10-26 Giroflex Entwicklungs Ag Chair, specially an office chair
WO2000022959A1 (en) * 1998-10-20 2000-04-27 Protoned B.V. Chair mechanism

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3930983C2 (en) * 1989-09-16 1993-09-30 Rolf Voelkle Seating with an adjustable seat
DE4135948C2 (en) * 1991-10-31 1993-12-23 Rolf Voelkle Chair, in particular office swivel chair
WO1995012338A1 (en) * 1993-11-01 1995-05-11 Labofa A/S A working chair with synchronous seat and back adjustment
AT402602B (en) * 1995-02-28 1997-07-25 Eckhard Hansen Dipl Ing CHAIR CHAIR
GB9802447D0 (en) * 1998-02-04 1998-04-01 Unit Press Limited Mechanism for chair
DE19810768B4 (en) * 1998-03-06 2009-09-24 Drabert Gmbh office chair
DE19921153A1 (en) * 1999-05-07 2000-11-09 Bock 1 Gmbh & Co Adjustment mechanism for swivel chair, comprising specific arrangement of springs and joint elements for synchronized motion of seat and back
DE19950923A1 (en) * 1999-10-21 2001-04-26 Interstuhl Bueromoebel Gmbh Reclining office chair has seat connected directly to frame at front and via lever at the back, spring below seat being connected to lever and to second arm providing resilience
AU2001245735A1 (en) * 2000-03-17 2001-10-03 Herman Miller, Inc. Tilt assembly for a chair

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2533428A1 (en) * 1982-09-23 1984-03-30 Strafor Sa Seat mechanism with a differential movement for tip-up seat
US5308144A (en) * 1989-05-20 1994-05-03 Roeder Gmbh Chair, in particular work or office chair
US5971481A (en) * 1996-10-11 1999-10-26 Giroflex Entwicklungs Ag Chair, specially an office chair
WO2000022959A1 (en) * 1998-10-20 2000-04-27 Protoned B.V. Chair mechanism

Also Published As

Publication number Publication date
US20020171276A1 (en) 2002-11-21
EP1258210A2 (en) 2002-11-20
EP1258210B1 (en) 2006-03-15
US6886888B2 (en) 2005-05-03
DE10125994A1 (en) 2002-11-21
DE50206055D1 (en) 2006-05-11

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