DE3172578D1 - Chair seat adjustment assembly - Google Patents

Chair seat adjustment assembly

Info

Publication number
DE3172578D1
DE3172578D1 DE8181301892T DE3172578T DE3172578D1 DE 3172578 D1 DE3172578 D1 DE 3172578D1 DE 8181301892 T DE8181301892 T DE 8181301892T DE 3172578 T DE3172578 T DE 3172578T DE 3172578 D1 DE3172578 D1 DE 3172578D1
Authority
DE
Germany
Prior art keywords
adjustment assembly
chair seat
seat adjustment
chair
assembly
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
Application number
DE8181301892T
Other languages
English (en)
Inventor
Charles Craig Pergler
Jack Richard Knoblauch
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.)
Steelcase Inc
Original Assignee
Steelcase Inc
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 Steelcase Inc filed Critical Steelcase Inc
Application granted granted Critical
Publication of DE3172578D1 publication Critical patent/DE3172578D1/de
Expired 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
    • A47C1/03294—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
DE8181301892T 1980-05-01 1981-04-29 Chair seat adjustment assembly Expired DE3172578D1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US06/145,624 US4375301A (en) 1980-05-01 1980-05-01 Chair seat adjustment assembly
US06/145,854 US4390206A (en) 1980-05-01 1980-05-01 Synchrotilt chair control
US06/145,622 US4438898A (en) 1980-05-01 1980-05-01 Chain control locking assembly
US06/145,439 US4314728A (en) 1980-05-01 1980-05-01 Chair control

Publications (1)

Publication Number Publication Date
DE3172578D1 true DE3172578D1 (en) 1985-11-14

Family

ID=42246360

Family Applications (2)

Application Number Title Priority Date Filing Date
DE8181301890T Expired DE3172808D1 (en) 1980-05-01 1981-04-29 Chair control
DE8181301892T Expired DE3172578D1 (en) 1980-05-01 1981-04-29 Chair seat adjustment assembly

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE8181301890T Expired DE3172808D1 (en) 1980-05-01 1981-04-29 Chair control

Country Status (5)

Country Link
US (4) US4375301A (de)
EP (2) EP0039576B1 (de)
CA (4) CA1162833A (de)
DE (2) DE3172808D1 (de)
ES (2) ES501794A0 (de)

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DE8133573U1 (de) * 1981-11-17 1983-05-05 Fritz Bauer + Söhne oHG, 8503 Altdorf Arretierbare wippvorrichtung fuer sitzteile von sitzmoebeln
US4494795A (en) * 1982-05-06 1985-01-22 Steelcase Inc. Variable back adjuster for chairs
JPS59207112A (ja) * 1983-05-10 1984-11-24 メ−コ−工業株式会社 椅子
DE3335463A1 (de) * 1983-09-30 1985-04-11 Fritz Bauer + Söhne oHG, 8503 Altdorf Trageinrichtung fuer ein sitzmoebel mit neigungsverstellbarem rueckenlehnentraeger und neigungsverstellbarem sitz
DE8401000U1 (de) * 1984-01-14 1984-04-05 Mauser Waldeck AG, 3544 Waldeck Drehsessel
DE3521488A1 (de) * 1985-06-14 1986-12-18 August Fröscher GmbH & Co KG, 7141 Steinheim Arbeitsstuhl
IT1202168B (it) * 1985-07-18 1989-02-02 Coop Operai Mobilieri Poltrona anatomica
SE461312B (sv) * 1986-02-19 1990-02-05 Swing Matic Ab Gungmekanism med arretering
US5567012A (en) * 1986-04-10 1996-10-22 Steelcase, Inc. Chair control
US4744603A (en) * 1986-04-10 1988-05-17 Steelcase Inc. Chair shell with selective back stiffening
IT206947Z2 (it) * 1986-06-12 1987-10-26 Pro Cord Srl Sedia con schienale articolato
US4718726A (en) * 1987-07-07 1988-01-12 Estkowski Michael H Chair seat tilt control
US4889384A (en) * 1988-07-10 1989-12-26 Leggett & Platt, Incorporated Knee-action chair control
US4948198A (en) * 1988-10-14 1990-08-14 Leggett & Platt, Incorporated Knee-tilt chair control
US4979778A (en) * 1989-01-17 1990-12-25 Brayton International, Inc. Synchrotilt chair
US5106157A (en) * 1989-03-01 1992-04-21 Herman Miller, Inc. Chair height and tilt adjustment mechanisms
US4892354A (en) * 1989-06-30 1990-01-09 Shepherd Products U.S., Inc. Chair seat tilt control
US5029940A (en) * 1990-01-16 1991-07-09 Westinghouse Electric Corporation Chair tilt and chair height control apparatus
US5257767A (en) 1990-06-13 1993-11-02 Waterloo Furniture Components, Ltd. Adjustable support mechanism for a keyboard platform
DE4100641A1 (de) * 1991-01-11 1992-07-16 Kloeber Gmbh & Co Arbeitsstuhl mit synchron-neigungsmechanik
US5318346A (en) * 1991-05-30 1994-06-07 Steelcase Inc. Chair with zero front rise control
US5318345A (en) * 1991-06-07 1994-06-07 Hon Industries, Inc. Tilt back chair and control
US5203853A (en) * 1991-09-18 1993-04-20 Herman Miller, Inc. Locking chair tilt mechanism with torsion bar
US5328242A (en) * 1992-03-18 1994-07-12 Steelcase Inc. Chair with back lock
US5282670A (en) * 1992-04-20 1994-02-01 Steelcase Inc. Cable actuated variable stop mechanism
WO1993025121A1 (en) * 1992-06-15 1993-12-23 Herman Miller, Inc. Office chair
CH690019A5 (de) * 1992-07-16 2000-03-31 Giroflex Entwicklungs Ag Traggestell für einen Stuhl, insbesondere für einen in der Höhe und Neigung verstellbaren Bürostuhl.
US5356200A (en) * 1992-10-23 1994-10-18 Doerner Products Ltd. Unitary brake for a chair tilt mechanism
US5630643A (en) * 1993-06-01 1997-05-20 Steelcase Inc Upholstered chair with two-piece shell
US5427434A (en) * 1993-07-30 1995-06-27 Leggett & Platt, Incorporated Chair tilt and height adjustment mechanism
US5577807A (en) * 1994-06-09 1996-11-26 Steelcase Inc. Adjustable chair actuator
EP0763991A4 (de) * 1994-06-10 2000-10-04 Haworth Inc Ergonomischer stuhl
US5782536A (en) * 1995-02-17 1998-07-21 Steelcase Inc. Modular chair construction and method of assembly
US5765914A (en) * 1995-06-07 1998-06-16 Herman Miller, Inc. Chair with a tilt control mechanism
US5810439A (en) * 1996-05-09 1998-09-22 Haworth, Inc. Forward-rearward tilt control for chair
US5755214A (en) * 1996-11-12 1998-05-26 Ming-Jeong Lin Ventilator hood for a cooker
US5909924A (en) * 1997-04-30 1999-06-08 Haworth, Inc. Tilt control for chair
US5909923A (en) * 1997-10-24 1999-06-08 Steelcase Inc. Chair with novel pivot mounts and method of assembly
US6250715B1 (en) * 1998-01-21 2001-06-26 Herman Miller, Inc. Chair
AU783829B2 (en) 2000-09-28 2005-12-08 Formway Furniture Limited A reclinable chair
USD463144S1 (en) 2000-09-28 2002-09-24 Formway Furniture Limited Chair
USD445580S1 (en) 2000-09-28 2001-07-31 Formway Furniture Limited Chair
AUPR054400A0 (en) 2000-09-29 2000-10-26 Formway Furniture Limited A castor
US6585320B2 (en) 2001-06-15 2003-07-01 Virco Mgmt. Corporation Tilt control mechanism for a tilt back chair
US6644741B2 (en) 2001-09-20 2003-11-11 Haworth, Inc. Chair
US7396082B2 (en) 2002-03-29 2008-07-08 Garrex Llc Task chair
US7625046B2 (en) * 2002-03-29 2009-12-01 Garrex Llc Task chair
US7040703B2 (en) * 2002-03-29 2006-05-09 Garrex Llc Health chair a dynamically balanced task chair
NZ518944A (en) 2002-05-14 2004-09-24 Formway Furniture Ltd Height adjustable arm for chair with outer stem releasably lockable to inner stem by engagement of recesses
US6880886B2 (en) 2002-09-12 2005-04-19 Steelcase Development Corporation Combined tension and back stop function for seating unit
US6793284B1 (en) * 2003-03-19 2004-09-21 L & P Property Management Company Steel spring with dwell for chairs
WO2005006917A2 (en) * 2003-07-09 2005-01-27 Sanchez Gary L Task chair
US6945602B2 (en) * 2003-12-18 2005-09-20 Haworth, Inc. Tilt control mechanism for chair
US7237841B2 (en) * 2004-06-10 2007-07-03 Steelcase Development Corporation Back construction with flexible lumbar
US7458637B2 (en) * 2004-06-10 2008-12-02 Steelcase Inc. Back construction with flexible lumbar
CA2600002C (en) * 2005-03-01 2014-02-18 Haworth, Inc. Tension adjustment mechanism for a chair
BRPI0807127A2 (pt) 2007-01-29 2011-09-13 Miller Herman Inc estrutura de assento e métodos para uso da mesma
ITMI20070718A1 (it) * 2007-04-06 2008-10-07 L & P Property Management Co Dispositivo di regolazione per sedie regolabili e simili.
ITMI20070719A1 (it) * 2007-04-06 2008-10-07 L & P Property Management Co Dispositivo di inclinazione per un sedile reclinabile.
ES2388713T3 (es) 2008-05-26 2012-10-17 Steelcase Inc. Respaldo amoldable para una unidad de asiento
EP2347676B1 (de) * 2010-01-22 2012-08-22 Stoll Giroflex AG Tragstruktur für ein Rückenteil und/oder einen Sitz einer Sitzeinrichtung und Sitzeinrichtung mit einer derartigen Tragstruktur
TW201216901A (en) * 2010-10-28 2012-05-01 Chia Chi Ya Entpr Co Ltd with position-limiting function between fixed frame and pivotal frame to avoid an excessive rotation of the backrest and the injury of hands
US11229294B2 (en) * 2012-09-20 2022-01-25 Steelcase Inc. Chair assembly with upholstery covering
USD696545S1 (en) 2013-07-30 2013-12-31 Steelcase, Inc. Rear surface of a chair back
US11589678B2 (en) 2019-01-17 2023-02-28 Hni Technologies Inc. Chairs including flexible frames
FI130242B (en) * 2019-01-18 2023-05-05 Flokk Ab Tilt locking device

Family Cites Families (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US178720A (en) * 1876-06-13 Improvement in recliwng-chairs
US1415252A (en) * 1918-07-31 1922-05-09 John V Mcmanis Treatment stool
US1674846A (en) * 1925-09-19 1928-06-26 Carl F Streit Chair
US2321385A (en) * 1941-06-16 1943-06-08 Sikes Company Tilting chair
US2572444A (en) * 1946-06-21 1951-10-23 Carden Albert Tool handle
US2471024A (en) * 1946-10-04 1949-05-24 Roy A Cramer Chair with tilting back and automatically shiftable seat
US2627299A (en) * 1947-12-03 1953-02-03 Edward M Martin Adjustable bus seat
US2638150A (en) * 1951-02-07 1953-05-12 Checker Cab Mfg Corp Adjustable seat structure
US2961035A (en) * 1954-05-26 1960-11-22 Lorenz Anton Article of repose for supporting the body of a person
GB815779A (en) * 1957-03-21 1959-07-01 Finn Lie Tilting mechanism for seat furniture
US2956619A (en) * 1958-10-03 1960-10-18 Cramer Posture Chair Company I Tilt back chair
US3072436A (en) * 1960-04-14 1963-01-08 Moore Edwin Rosco Tilting devices for chair seats and chair backs
BE669160A (de) * 1964-09-03 1965-12-31
US3480249A (en) * 1967-12-11 1969-11-25 Finn Lie Tilting chair construction
US3627252A (en) * 1969-12-22 1971-12-14 Yoshiomi Yamaguchi Tilting chair
GB1343305A (en) * 1971-04-01 1974-01-10 Werner P G Adjustable resiliently hinged device for chairs and the like
US3758157A (en) * 1971-09-20 1973-09-11 Steelcase Inc Chair
US3881772A (en) * 1973-10-03 1975-05-06 Stewart Warner Corp Chair control mechanism
DE2623024A1 (de) * 1976-05-22 1977-12-08 Wilkhahn Wilkening & Hahne Sitzmoebel, insbesondere stuhl mit sitzteil
US4099775A (en) * 1976-10-07 1978-07-11 Hoover Ball And Bearing Company Chair control with tilt lock
DE2801168C2 (de) * 1978-01-12 1986-09-25 Keiper Recaro GmbH & Co, 7312 Kirchheim Verstellvorrichtung, insbesondere für eine Kopfstütze eines Fahrzeugsitzes
US4155593A (en) * 1978-03-20 1979-05-22 Milsco Manufacturing Company Vehicle seat having seat rake adjustment means
US4154477A (en) * 1978-03-20 1979-05-15 Milsco Manufacturing Company Vehicle seat having backrest height adjustment means
US4214726A (en) * 1978-11-06 1980-07-29 Steelcase, Inc. Chair control

Also Published As

Publication number Publication date
US4314728A (en) 1982-02-09
CA1162833A (en) 1984-02-28
ES501793A0 (es) 1982-06-16
CA1156922A (en) 1983-11-15
EP0039574A3 (en) 1982-06-23
US4438898A (en) 1984-03-27
US4375301A (en) 1983-03-01
US4390206A (en) 1983-06-28
EP0039576A3 (en) 1982-06-16
ES8205548A1 (es) 1982-06-16
EP0039576A2 (de) 1981-11-11
CA1162832A (en) 1984-02-28
DE3172808D1 (en) 1985-12-12
ES8207420A1 (es) 1982-09-16
EP0039576B1 (de) 1985-10-09
EP0039574B1 (de) 1985-11-06
EP0039574A2 (de) 1981-11-11
ES501794A0 (es) 1982-09-16
CA1157366A (en) 1983-11-22

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee