EP1258208A3 - Biased spring, particularly for synchronised mechanisms in office chairs - Google Patents

Biased spring, particularly for synchronised mechanisms in office chairs Download PDF

Info

Publication number
EP1258208A3
EP1258208A3 EP20020009188 EP02009188A EP1258208A3 EP 1258208 A3 EP1258208 A3 EP 1258208A3 EP 20020009188 EP20020009188 EP 20020009188 EP 02009188 A EP02009188 A EP 02009188A EP 1258208 A3 EP1258208 A3 EP 1258208A3
Authority
EP
European Patent Office
Prior art keywords
sectors
cam
synchronised
mechanisms
biased spring
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
EP20020009188
Other languages
German (de)
French (fr)
Other versions
EP1258208A2 (en
EP1258208B1 (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 EP1258208A2 publication Critical patent/EP1258208A2/en
Publication of EP1258208A3 publication Critical patent/EP1258208A3/en
Application granted granted Critical
Publication of EP1258208B1 publication Critical patent/EP1258208B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • A47C1/03261—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest characterised by elastic means
    • A47C1/03266—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest characterised by elastic means with adjustable elasticity
    • 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
    • A47C1/03272—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
    • 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
    • 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

Landscapes

  • Health & Medical Sciences (AREA)
  • Dentistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Chairs For Special Purposes, Such As Reclining Chairs (AREA)
  • Springs (AREA)
  • Chairs Characterized By Structure (AREA)
  • Legs For Furniture In General (AREA)
  • Fluid-Damping Devices (AREA)

Abstract

The coaxially mounted springs (28) have an adjuster leg (31) and a supporting leg (29), using a hand operated cam system (32) to couple the adjuster legs (31). The spring force (F) is adjusted in steps, obtained by adjoining cams (40,41) whose faces (42) are related to the cam twist angle first by flat sectors (43,47,50), excentric sectors (44,48,51) and finally by holding sectors (45,49,52) coaxial with the cam system (9). The two sets of sectors per cam (40,22) should be offset in the rotating sense of the cam. The control sectors (44,48,51) are formed by flat extensions of the sectors (43,47,50), co-planar with the sectors (43,47,50) in the cam lift direction.
EP20020009188 2001-05-18 2002-04-25 Biased spring, particularly for synchronised mechanisms in office chairs Expired - Lifetime EP1258208B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2001126001 DE10126001A1 (en) 2001-05-18 2001-05-18 Preloaded spring arrangement, in particular for spring loading of synchronous mechanisms in office chairs
DE10126001 2001-05-18

Publications (3)

Publication Number Publication Date
EP1258208A2 EP1258208A2 (en) 2002-11-20
EP1258208A3 true EP1258208A3 (en) 2004-01-28
EP1258208B1 EP1258208B1 (en) 2006-03-22

Family

ID=7686436

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20020009188 Expired - Lifetime EP1258208B1 (en) 2001-05-18 2002-04-25 Biased spring, particularly for synchronised mechanisms in office chairs

Country Status (4)

Country Link
US (1) US6709056B2 (en)
EP (1) EP1258208B1 (en)
AT (1) ATE320736T1 (en)
DE (2) DE10126001A1 (en)

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US7048335B2 (en) * 2003-06-05 2006-05-23 Steelcase Development Corporation Seating unit with crossbar seat support
US6957862B2 (en) * 2003-10-09 2005-10-25 Su-Ming Chen Chair with a seat-inclination adjusting device
US6969116B2 (en) 2003-12-30 2005-11-29 Hni Technologies Inc. Chair with backward and forward passive tilt capabilities
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DE102005020247B3 (en) * 2005-04-28 2006-11-30 Bock 1 Gmbh & Co. Kg Seating furniture, in particular office chair
US20090195039A1 (en) * 2005-10-18 2009-08-06 Delta Tooling Co., Ltd Seat Structure
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DE202007006762U1 (en) * 2006-10-13 2008-02-14 Bock 1 Gmbh & Co. Kg Mechanics for an office chair
ITTO20070398A1 (en) * 2007-06-06 2008-12-07 Malenotti S R L "CHAIR WITH OSCILLATING BACKREST"
EP2200479B1 (en) * 2007-09-20 2015-06-17 Herman Miller, Inc. Body support structure
US8170261B2 (en) * 2008-02-20 2012-05-01 Logitech Europe S.A. Personal audio set with adjustable force mechanisms
GB0806958D0 (en) * 2008-04-17 2008-05-21 Simclar Seating Technologies L Chair back tilt tensioning
DE102009009287A1 (en) * 2009-02-17 2010-09-09 Uhlenbrock, Christel Seating furniture, in particular office swivel chair
EP2298132B1 (en) * 2009-09-16 2018-06-13 Haworth GmbH Seating furniture, in particular rotating office chair
JP5514509B2 (en) * 2009-10-26 2014-06-04 株式会社イトーキ Rocking chair
EP2347676B1 (en) * 2010-01-22 2012-08-22 Stoll Giroflex AG Support structure for a back part and/or the seat of a sitting device and sitting device with such a support structure
US8714646B2 (en) 2010-02-08 2014-05-06 Sava Cvek Mobile task chair and mobile task chair control mechanism with adjustment capabilities and visual setting indicators
US8714645B2 (en) * 2010-01-28 2014-05-06 Sava Cvek Pivoting mechanism with gross and fine resistance adjustment
CN102843930B (en) * 2010-04-15 2016-02-10 喜迪世公司 For the restoring force of regulating action on back governor motion and there is the office chair of this governor motion
GB201014953D0 (en) * 2010-09-08 2010-10-20 Birkbeck Hilary R Slide chair action
WO2012048863A1 (en) * 2010-10-15 2012-04-19 Bock 1 Gmbh & Co. Kg Synchronisation mechanism
JP6325981B2 (en) * 2011-10-21 2018-05-16 リ，ジェ ヒョンＬＥＥ，Ｊａｅ ｈｙｕｎ Straightening chair using the slider method
DE202012002288U1 (en) * 2012-03-08 2012-05-11 Walter Knoll Ag & Co. Kg functional chair
US11304528B2 (en) 2012-09-20 2022-04-19 Steelcase Inc. Chair assembly with upholstery covering
USD697726S1 (en) 2012-09-20 2014-01-21 Steelcase Inc. Chair
CN103876498B (en) * 2014-03-26 2016-08-24 汕头市丽时家具有限公司 Chair underframe and the seat with this Chair underframe
CN106455821A (en) * 2014-04-17 2017-02-22 Hni技术公司 Chair and chair control assemblies, systems, and methods
DE102015101545A1 (en) * 2015-02-03 2016-08-04 Bock 1 Gmbh & Co. Kg synchronous mechanism
EP3267838A4 (en) * 2015-03-10 2018-10-24 Wabl, Hans Johann Chair adjustment means
US11071386B2 (en) 2016-06-09 2021-07-27 Sava Cvek Seat pivoting mechanism and chair height locking system
US10463153B2 (en) 2016-06-09 2019-11-05 Steelcase Inc. Seating arrangement
DE102017107636A1 (en) * 2017-04-10 2018-10-11 Bock 1 Gmbh & Co. Kg Synchronous mechanism for an office chair
JPWO2020255195A1 (en) * 2019-06-17 2020-12-24
DE102020101033A1 (en) 2020-01-17 2021-07-22 Bock 1 Gmbh & Co. Kg Carrier for a chair

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DE19922446A1 (en) * 1999-05-07 2000-11-09 Bock 1 Gmbh & Co Synchronous mechanism for movement of seat and back of office chair; has spring arrangement to tilt back and seat together and catch mechanism to fix back and seat in defined position

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DE19922446A1 (en) * 1999-05-07 2000-11-09 Bock 1 Gmbh & Co Synchronous mechanism for movement of seat and back of office chair; has spring arrangement to tilt back and seat together and catch mechanism to fix back and seat in defined position

Also Published As

Publication number Publication date
EP1258208A2 (en) 2002-11-20
ATE320736T1 (en) 2006-04-15
US20020171277A1 (en) 2002-11-21
EP1258208B1 (en) 2006-03-22
DE10126001A1 (en) 2002-11-21
US6709056B2 (en) 2004-03-23
DE50206108D1 (en) 2006-05-11

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