US20100244521A1 - Chair - Google Patents

Chair Download PDF

Info

Publication number
US20100244521A1
US20100244521A1 US12/734,978 US73497808A US2010244521A1 US 20100244521 A1 US20100244521 A1 US 20100244521A1 US 73497808 A US73497808 A US 73497808A US 2010244521 A1 US2010244521 A1 US 2010244521A1
Authority
US
United States
Prior art keywords
back shell
shell
back frame
frame
lumbar support
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.)
Abandoned
Application number
US12/734,978
Other languages
English (en)
Inventor
Nobuyuki Ueda
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.)
Kokuyo Co Ltd
Original Assignee
Kokuyo Co Ltd
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 Kokuyo Co Ltd filed Critical Kokuyo Co Ltd
Assigned to KOKUYO CO., LTD. reassignment KOKUYO CO., LTD. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: UEDA, NOBUYUKI
Publication of US20100244521A1 publication Critical patent/US20100244521A1/en
Abandoned 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
    • A47C1/031—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
    • A47C1/03277—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
    • A47C1/03279—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 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
US12/734,978 2008-01-16 2008-08-05 Chair Abandoned US20100244521A1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP2008007401A JP5347142B2 (ja) 2008-01-16 2008-01-16 椅子
JP2008007398A JP5347141B2 (ja) 2008-01-16 2008-01-16 椅子
JP2008-007398 2008-01-16
PCT/JP2008/064032 WO2009090769A1 (ja) 2008-01-16 2008-08-05 椅子

Publications (1)

Publication Number Publication Date
US20100244521A1 true US20100244521A1 (en) 2010-09-30

Family

ID=42315619

Family Applications (1)

Application Number Title Priority Date Filing Date
US12/734,978 Abandoned US20100244521A1 (en) 2008-01-16 2008-08-05 Chair

Country Status (4)

Country Link
US (1) US20100244521A1 (ja)
EP (2) EP2233044A1 (ja)
JP (2) JP5347142B2 (ja)
WO (2) WO2009090770A1 (ja)

Cited By (41)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD683150S1 (en) 2012-09-20 2013-05-28 Steelcase Inc. Chair
USD683151S1 (en) 2012-09-20 2013-05-28 Steelcase Inc. Chair
USD688500S1 (en) * 2012-09-20 2013-08-27 Steelcase Inc. Chair
USD688497S1 (en) * 2012-09-20 2013-08-27 Steelcase Inc. Chair
USD688502S1 (en) 2012-09-20 2013-08-27 Steelcase Inc. Arm assembly
USD688498S1 (en) * 2012-09-20 2013-08-27 Steelcase Inc. Chair
USD688499S1 (en) * 2012-09-20 2013-08-27 Steelcase Inc. Chair
USD688907S1 (en) 2012-09-20 2013-09-03 Steelcase Inc. Arm assembly
USD689319S1 (en) * 2012-09-20 2013-09-10 Steelcase Inc. Chair
USD689318S1 (en) 2012-09-20 2013-09-10 Steelcase Inc. Chair
USD689314S1 (en) 2012-09-20 2013-09-10 Steelcase Inc. Chair
USD690146S1 (en) * 2012-09-20 2013-09-24 Steelcase Inc. Chair
USD694537S1 (en) 2012-09-20 2013-12-03 Steelcase Inc. Chair
USD694538S1 (en) 2012-09-20 2013-12-03 Steelcase Inc. Chair
USD694540S1 (en) 2012-09-20 2013-12-03 Steelcase Inc. Chair
USD695034S1 (en) 2012-11-13 2013-12-10 Steelcase Inc. Chair
US8602501B2 (en) * 2010-09-14 2013-12-10 Herman Miller, Inc. Backrest
USD697729S1 (en) 2012-09-20 2014-01-21 Steelcase Inc. Chair
USD697730S1 (en) 2012-09-20 2014-01-21 Steelcase Inc. Chair
USD697747S1 (en) 2012-09-20 2014-01-21 Steelcase Inc. Chair
USD697726S1 (en) 2012-09-20 2014-01-21 Steelcase Inc. Chair
USD698165S1 (en) 2012-09-20 2014-01-28 Steelcase Inc. Chair
USD699957S1 (en) 2012-09-20 2014-02-25 Steelcase Inc. Chair
USD702981S1 (en) 2012-09-20 2014-04-22 Steelcase Inc. Chair
USD703457S1 (en) * 2013-06-07 2014-04-29 Herman Miller, Inc. Chair
US8998339B2 (en) 2012-09-20 2015-04-07 Steelcase Inc. Chair assembly with upholstery covering
US9326614B2 (en) 2011-09-14 2016-05-03 Shiroki Corporation Lumbar support apparatus
US20160135603A1 (en) * 2013-06-06 2016-05-19 Itoki Corporation Chair
USD758774S1 (en) 2015-04-24 2016-06-14 Steelcase Inc. Headrest assembly
USD759415S1 (en) 2015-04-24 2016-06-21 Steelcase Inc. Headrest
USD760526S1 (en) 2015-04-24 2016-07-05 Steelcase Inc. Headrest assembly
USD781605S1 (en) 2015-04-24 2017-03-21 Steelcase Inc. Chair
USD781604S1 (en) 2015-04-24 2017-03-21 Steelcase Inc. Chair
US9661930B2 (en) 2012-09-21 2017-05-30 Steelcase Inc. Chair construction
US10016061B2 (en) * 2016-02-15 2018-07-10 Interstuhl Bueromoebel Gmbh & Co. Kg Backrest for an office chair
US10130184B2 (en) * 2016-10-07 2018-11-20 Pao Shen Enterprises Co., Ltd. Adjusting mechanism and chair including the same
USD888479S1 (en) * 2018-06-04 2020-06-30 Steelcase Inc. Chair arm
USD889152S1 (en) * 2018-06-05 2020-07-07 Herman Miller, Inc. Chair
US11229294B2 (en) 2012-09-20 2022-01-25 Steelcase Inc. Chair assembly with upholstery covering
USD942767S1 (en) 2012-09-20 2022-02-08 Steelcase Inc. Chair assembly
US11304528B2 (en) 2012-09-20 2022-04-19 Steelcase Inc. Chair assembly with upholstery covering

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5514509B2 (ja) 2009-10-26 2014-06-04 株式会社イトーキ ロッキング椅子
US9706845B2 (en) 2012-09-20 2017-07-18 Steelcase Inc. Chair assembly
USD708466S1 (en) 2013-05-16 2014-07-08 Steelcase Inc. Chair
USD705561S1 (en) 2013-05-16 2014-05-27 Steelcase Inc. Chair
USD704945S1 (en) 2013-05-16 2014-05-20 Steelcase Inc. Chair
CN103504845B (zh) * 2013-09-24 2015-10-07 浙江永艺家具股份有限公司 一种用于转椅底盘的托架驱动机构
EP3613313B1 (de) * 2018-08-20 2022-03-23 RECARO Gaming GmbH & Co. KG E-gaming-sitz
CN210494426U (zh) * 2019-05-08 2020-05-12 明门(中国)幼童用品有限公司 背靠调整机构及具有该机构的看护车
EP3982790A4 (en) 2019-06-11 2023-07-05 MillerKnoll, Inc. CHAIR
KR102296210B1 (ko) * 2019-10-04 2021-09-01 주식회사 토퍼스 고정 지지구조가 개선된 등받이 틸팅 의자
KR102468097B1 (ko) * 2020-10-29 2022-11-22 주식회사 시디즈 의자
USD970912S1 (en) 2020-12-18 2022-11-29 MillerKnoll, Inc. Chair
JP2023046970A (ja) * 2021-09-24 2023-04-05 株式会社オカムラ 椅子
WO2023176995A1 (ko) * 2022-03-17 2023-09-21 주식회사 시디즈 의자

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5660439A (en) * 1995-01-04 1997-08-26 Unwalla; Jamshed Integrated seat and back and mechanisms for chairs
US6523898B1 (en) * 1999-06-17 2003-02-25 Steelcase Development Corporation Chair construction
US6565153B2 (en) * 2001-07-31 2003-05-20 Johnson Controls Technology Corporation Upper back support for a seat
US6817668B2 (en) * 1997-10-24 2004-11-16 Steelcase Development Corporation Seating unit with variable back stop and seat bias
US7097249B2 (en) * 2002-07-23 2006-08-29 Okamura Corporation Tilting mechanism for a chair and chair having the same
US7185951B2 (en) * 2002-12-19 2007-03-06 L & P Property Management Company Chair and synchrotilt chair mechanism

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2519122Y2 (ja) * 1991-01-23 1996-12-04 株式会社イトーキクレビオ 椅子の背もたれ装置
JP2507575Y2 (ja) * 1991-01-31 1996-08-14 株式会社イトーキクレビオ 椅子の背もたれ装置
DE9302581U1 (de) * 1993-02-25 1994-06-23 Vermoegensverwaltung Franz Vog Verstelleinrichtung
JP3100353B2 (ja) * 1997-06-24 2000-10-16 株式会社イトーキ 椅 子
GB0100388D0 (en) * 2001-01-06 2001-02-14 Unit Press Ltd Chairs
JP4411413B2 (ja) * 2001-03-22 2010-02-10 コクヨ株式会社 椅子
JP4848099B2 (ja) * 2001-07-18 2011-12-28 タカノ株式会社 椅子
DE10219478B4 (de) * 2002-04-30 2006-07-13 Klöber GmbH Stuhl mit vom Benutzergewicht abhängigen Kraftspeicher
JP4220191B2 (ja) 2002-07-23 2009-02-04 株式会社岡村製作所 椅子の背凭れ装置
JP4778215B2 (ja) * 2004-09-22 2011-09-21 株式会社岡村製作所 リクライニング椅子
JP4735804B2 (ja) * 2004-12-27 2011-07-27 コクヨ株式会社 傾動反力調整装置を備えた椅子
US20070290537A1 (en) * 2006-06-13 2007-12-20 Tung Yu Oa Co., Ltd. Recliner
JP4197045B2 (ja) * 2007-08-31 2008-12-17 コクヨ株式会社 椅子

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5660439A (en) * 1995-01-04 1997-08-26 Unwalla; Jamshed Integrated seat and back and mechanisms for chairs
US6817668B2 (en) * 1997-10-24 2004-11-16 Steelcase Development Corporation Seating unit with variable back stop and seat bias
US6523898B1 (en) * 1999-06-17 2003-02-25 Steelcase Development Corporation Chair construction
US6565153B2 (en) * 2001-07-31 2003-05-20 Johnson Controls Technology Corporation Upper back support for a seat
US7097249B2 (en) * 2002-07-23 2006-08-29 Okamura Corporation Tilting mechanism for a chair and chair having the same
US7185951B2 (en) * 2002-12-19 2007-03-06 L & P Property Management Company Chair and synchrotilt chair mechanism

Cited By (69)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8602501B2 (en) * 2010-09-14 2013-12-10 Herman Miller, Inc. Backrest
US9326614B2 (en) 2011-09-14 2016-05-03 Shiroki Corporation Lumbar support apparatus
USD697726S1 (en) 2012-09-20 2014-01-21 Steelcase Inc. Chair
USD689318S1 (en) 2012-09-20 2013-09-10 Steelcase Inc. Chair
USD688500S1 (en) * 2012-09-20 2013-08-27 Steelcase Inc. Chair
USD688497S1 (en) * 2012-09-20 2013-08-27 Steelcase Inc. Chair
USD688505S1 (en) * 2012-09-20 2013-08-27 Steelcase Inc. Chair
USD688502S1 (en) 2012-09-20 2013-08-27 Steelcase Inc. Arm assembly
USD688501S1 (en) * 2012-09-20 2013-08-27 Steelcase Inc. Chair
USD683150S1 (en) 2012-09-20 2013-05-28 Steelcase Inc. Chair
USD688503S1 (en) * 2012-09-20 2013-08-27 Steelcase Inc. Chair
USD688499S1 (en) * 2012-09-20 2013-08-27 Steelcase Inc. Chair
USD688504S1 (en) * 2012-09-20 2013-08-27 Steelcase Inc. Chair
USD688907S1 (en) 2012-09-20 2013-09-03 Steelcase Inc. Arm assembly
USD689319S1 (en) * 2012-09-20 2013-09-10 Steelcase Inc. Chair
USD697727S1 (en) 2012-09-20 2014-01-21 Steeelcase Inc. Chair
USD689313S1 (en) * 2012-09-20 2013-09-10 Steelcase Inc. Chair
USD689314S1 (en) 2012-09-20 2013-09-10 Steelcase Inc. Chair
USD689315S1 (en) 2012-09-20 2013-09-10 Steelcase Inc. Arm assembly
USD698166S1 (en) 2012-09-20 2014-01-28 Steelcase Inc. Chair
USD689317S1 (en) 2012-09-20 2013-09-10 Steelcase Inc. Chair
USD690146S1 (en) * 2012-09-20 2013-09-24 Steelcase Inc. Chair
USD690547S1 (en) * 2012-09-20 2013-10-01 Steelcase Inc. Chair
USD694537S1 (en) 2012-09-20 2013-12-03 Steelcase Inc. Chair
USD694536S1 (en) 2012-09-20 2013-12-03 Steelcase Inc. Chair
USD694538S1 (en) 2012-09-20 2013-12-03 Steelcase Inc. Chair
USD694540S1 (en) 2012-09-20 2013-12-03 Steelcase Inc. Chair
USD694539S1 (en) 2012-09-20 2013-12-03 Steelcase Inc. Chair
USD696054S1 (en) 2012-09-20 2013-12-24 Steelcase Inc. Chair
USD696544S1 (en) 2012-09-20 2013-12-31 Steelcase Inc. Chair
USD697729S1 (en) 2012-09-20 2014-01-21 Steelcase Inc. Chair
USD697730S1 (en) 2012-09-20 2014-01-21 Steelcase Inc. Chair
USD697728S1 (en) 2012-09-20 2014-01-21 Steelcase Inc. Chair
USD697747S1 (en) 2012-09-20 2014-01-21 Steelcase Inc. Chair
USD688498S1 (en) * 2012-09-20 2013-08-27 Steelcase Inc. Chair
USD683151S1 (en) 2012-09-20 2013-05-28 Steelcase Inc. Chair
USD689312S1 (en) 2012-09-20 2013-09-10 Steelcase Inc. Chair
USD698165S1 (en) 2012-09-20 2014-01-28 Steelcase Inc. Chair
USD699061S1 (en) 2012-09-20 2014-02-11 Steelcase Inc. Arm assembly
USD699958S1 (en) 2012-09-20 2014-02-25 Steelcase Inc. Chair
USD699959S1 (en) 2012-09-20 2014-02-25 Steelcase Inc. Chair
USD699957S1 (en) 2012-09-20 2014-02-25 Steelcase Inc. Chair
USD701053S1 (en) 2012-09-20 2014-03-18 Steelcase Inc. Chair
USD702981S1 (en) 2012-09-20 2014-04-22 Steelcase Inc. Chair
US8998339B2 (en) 2012-09-20 2015-04-07 Steelcase Inc. Chair assembly with upholstery covering
USD742676S1 (en) 2012-09-20 2015-11-10 Steelcase Inc. Chair
USD742677S1 (en) 2012-09-20 2015-11-10 Steelcase Inc. Chair
US9345328B2 (en) 2012-09-20 2016-05-24 Steelcase Inc. Chair assembly with upholstery covering
US11464341B2 (en) 2012-09-20 2022-10-11 Steelcase Inc. Chair assembly with upholstery covering
US11304528B2 (en) 2012-09-20 2022-04-19 Steelcase Inc. Chair assembly with upholstery covering
USD942767S1 (en) 2012-09-20 2022-02-08 Steelcase Inc. Chair assembly
US11229294B2 (en) 2012-09-20 2022-01-25 Steelcase Inc. Chair assembly with upholstery covering
US10842281B2 (en) 2012-09-20 2020-11-24 Steelcase Inc. Control assembly for chair
US10264889B2 (en) 2012-09-20 2019-04-23 Steelcase Inc. Chair assembly with upholstery covering
US9408467B2 (en) 2012-09-20 2016-08-09 Steelcase Inc. Chair assembly with upholstery covering
US9826839B2 (en) 2012-09-20 2017-11-28 Steelcase Inc. Chair assembly with upholstery covering
US9661930B2 (en) 2012-09-21 2017-05-30 Steelcase Inc. Chair construction
USD695034S1 (en) 2012-11-13 2013-12-10 Steelcase Inc. Chair
US20160135603A1 (en) * 2013-06-06 2016-05-19 Itoki Corporation Chair
USD703457S1 (en) * 2013-06-07 2014-04-29 Herman Miller, Inc. Chair
USD781605S1 (en) 2015-04-24 2017-03-21 Steelcase Inc. Chair
USD781604S1 (en) 2015-04-24 2017-03-21 Steelcase Inc. Chair
USD760526S1 (en) 2015-04-24 2016-07-05 Steelcase Inc. Headrest assembly
USD758774S1 (en) 2015-04-24 2016-06-14 Steelcase Inc. Headrest assembly
USD759415S1 (en) 2015-04-24 2016-06-21 Steelcase Inc. Headrest
US10016061B2 (en) * 2016-02-15 2018-07-10 Interstuhl Bueromoebel Gmbh & Co. Kg Backrest for an office chair
US10130184B2 (en) * 2016-10-07 2018-11-20 Pao Shen Enterprises Co., Ltd. Adjusting mechanism and chair including the same
USD888479S1 (en) * 2018-06-04 2020-06-30 Steelcase Inc. Chair arm
USD889152S1 (en) * 2018-06-05 2020-07-07 Herman Miller, Inc. Chair

Also Published As

Publication number Publication date
JP2009165662A (ja) 2009-07-30
JP2009165659A (ja) 2009-07-30
EP2233044A1 (en) 2010-09-29
JP5347142B2 (ja) 2013-11-20
WO2009090769A1 (ja) 2009-07-23
EP2233043A1 (en) 2010-09-29
EP2233043A4 (en) 2011-10-19
JP5347141B2 (ja) 2013-11-20
WO2009090770A1 (ja) 2009-07-23

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Legal Events

Date Code Title Description
AS Assignment

Owner name: KOKUYO CO., LTD., JAPAN

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:UEDA, NOBUYUKI;REEL/FRAME:024513/0037

Effective date: 20100407

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION