EP2491821A4 - Backrest for chair - Google Patents

Backrest for chair

Info

Publication number
EP2491821A4
EP2491821A4 EP10824921.0A EP10824921A EP2491821A4 EP 2491821 A4 EP2491821 A4 EP 2491821A4 EP 10824921 A EP10824921 A EP 10824921A EP 2491821 A4 EP2491821 A4 EP 2491821A4
Authority
EP
European Patent Office
Prior art keywords
backrest
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.)
Withdrawn
Application number
EP10824921.0A
Other languages
German (de)
French (fr)
Other versions
EP2491821A1 (en
Inventor
Ken Nakayama
Kouichirou Wakizono
Ryou Igarashi
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.)
Okamura Corp
Original Assignee
Okamura Corp
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 Okamura Corp filed Critical Okamura Corp
Publication of EP2491821A1 publication Critical patent/EP2491821A1/en
Publication of EP2491821A4 publication Critical patent/EP2491821A4/en
Withdrawn legal-status Critical Current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
    • A47C5/00—Chairs of special materials
    • A47C5/04—Metal chairs, e.g. tubular
    • A47C5/06—Special adaptation of seat upholstery or fabric for attachment to tubular 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
    • A47C1/03283—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest characterised by elastic means with fluid springs
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C31/00—Details or accessories for chairs, beds, or the like, not provided for in other groups of this subclass, e.g. upholstery fasteners, mattress protectors, stretching devices for mattress nets
    • A47C31/02—Upholstery attaching means
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47C—CHAIRS; SOFAS; BEDS
    • A47C7/00—Parts, details, or accessories of chairs or stools
    • A47C7/36—Support for the head or the back
    • A47C7/40—Support for the head or the back for the back
EP10824921.0A 2009-10-19 2010-10-19 Backrest for chair Withdrawn EP2491821A4 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2009240146A JP5606717B2 (en) 2009-10-19 2009-10-19 Chair back
PCT/JP2010/068341 WO2011049072A1 (en) 2009-10-19 2010-10-19 Backrest for chair

Publications (2)

Publication Number Publication Date
EP2491821A1 EP2491821A1 (en) 2012-08-29
EP2491821A4 true EP2491821A4 (en) 2014-10-29

Family

ID=43900297

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10824921.0A Withdrawn EP2491821A4 (en) 2009-10-19 2010-10-19 Backrest for chair

Country Status (7)

Country Link
US (1) US20120212027A1 (en)
EP (1) EP2491821A4 (en)
JP (1) JP5606717B2 (en)
KR (1) KR20120098633A (en)
CN (1) CN102573571A (en)
CA (1) CA2778163A1 (en)
WO (1) WO2011049072A1 (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5855879B2 (en) * 2011-09-12 2016-02-09 株式会社岡村製作所 Chair
USD781605S1 (en) 2015-04-24 2017-03-21 Steelcase Inc. Chair
USD699959S1 (en) 2012-09-20 2014-02-25 Steelcase Inc. Chair
USD699958S1 (en) 2012-09-20 2014-02-25 Steelcase Inc. Chair
JP6414964B2 (en) * 2014-10-24 2018-10-31 株式会社オカムラ Chair load bearing member and chair
JP6529154B2 (en) * 2014-10-24 2019-06-12 株式会社オカムラ Chair load support member and chair
USD758774S1 (en) 2015-04-24 2016-06-14 Steelcase Inc. Headrest assembly
USD781604S1 (en) 2015-04-24 2017-03-21 Steelcase Inc. Chair
USD760526S1 (en) 2015-04-24 2016-07-05 Steelcase Inc. Headrest assembly
USD759415S1 (en) 2015-04-24 2016-06-21 Steelcase Inc. Headrest
CN109310208B (en) * 2016-06-10 2022-02-22 株式会社冈村制作所 Chair (Ref. TM. chair)
US11690457B2 (en) * 2020-02-04 2023-07-04 Hni Technologies Inc. Chair with flexible internal support

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4062589A (en) * 1976-08-04 1977-12-13 Klein Gerhart P Chair with contoured seat
US20020017814A1 (en) * 1999-11-05 2002-02-14 Alfred G. Niederman Modular furniture including interchangeable upholstery
JP2002172039A (en) * 2000-12-06 2002-06-18 Kokuyo Co Ltd Furniture
DE20216302U1 (en) * 2002-10-22 2003-04-17 Vitra Patente Ag Muttenz Tilting backrest with elastic covering
JP2009112396A (en) * 2007-11-02 2009-05-28 Okamura Corp Backrest device of chair

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4553786A (en) * 1983-08-10 1985-11-19 William Lockett, III Infant seating and lounge unit
US4592126A (en) * 1984-12-14 1986-06-03 Homecrest Industries Incorporated Method for constructing furniture having a flexible sheet portion
US5393126A (en) * 1993-06-21 1995-02-28 Art Design International Inc. Tubular frame seating structure with tension sleeve
US5496094A (en) * 1993-09-30 1996-03-05 Cosco, Inc. Seat with expandable frame
CN2213486Y (en) * 1994-02-20 1995-11-29 罗莹 Health-care cushion for waist and black
US5906878A (en) * 1995-10-02 1999-05-25 Horning; Deborah K. Apparatus and method for deterring slippage of a slip cover or cushion placed on furniture
DE19754817A1 (en) 1997-12-10 1999-06-17 Stoll Sedus Ag backrest
US6345428B2 (en) * 1999-08-13 2002-02-12 Homecrest Industries Incorporated Chair construction and method of making same
US20020074839A1 (en) * 2000-12-14 2002-06-20 Mahan Richard L. Slip cover for seat back
JP2003038289A (en) * 2001-07-31 2003-02-12 Tachi S Co Ltd Simple seat and its manufacturing method
JP4109441B2 (en) 2001-11-02 2008-07-02 株式会社岡村製作所 Chair back
US6886890B2 (en) * 2002-06-07 2005-05-03 David L. Rowland Panel
JP4159316B2 (en) * 2002-07-17 2008-10-01 タカノ株式会社 Backrest mounting structure
JP4086616B2 (en) * 2002-10-16 2008-05-14 株式会社デルタツーリング Sheet structure
US7055911B2 (en) * 2003-05-08 2006-06-06 Haworth, Inc. Mesh chair
JP4127193B2 (en) * 2003-11-13 2008-07-30 コクヨ株式会社 Chair back
US7025424B2 (en) * 2004-06-07 2006-04-11 Allseating Corporation Chair back for a chair
US7396079B2 (en) * 2005-03-08 2008-07-08 Steelcase Inc. Seating with shape-changing back support frame
JP5031288B2 (en) * 2006-07-24 2012-09-19 株式会社岡村製作所 Chair backrest device
JP2009112360A (en) * 2007-11-02 2009-05-28 Okamura Corp Backrest of chair

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4062589A (en) * 1976-08-04 1977-12-13 Klein Gerhart P Chair with contoured seat
US20020017814A1 (en) * 1999-11-05 2002-02-14 Alfred G. Niederman Modular furniture including interchangeable upholstery
JP2002172039A (en) * 2000-12-06 2002-06-18 Kokuyo Co Ltd Furniture
DE20216302U1 (en) * 2002-10-22 2003-04-17 Vitra Patente Ag Muttenz Tilting backrest with elastic covering
JP2009112396A (en) * 2007-11-02 2009-05-28 Okamura Corp Backrest device of chair

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2011049072A1 *

Also Published As

Publication number Publication date
JP5606717B2 (en) 2014-10-15
KR20120098633A (en) 2012-09-05
EP2491821A1 (en) 2012-08-29
JP2011083518A (en) 2011-04-28
WO2011049072A1 (en) 2011-04-28
CA2778163A1 (en) 2011-04-28
US20120212027A1 (en) 2012-08-23
CN102573571A (en) 2012-07-11

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Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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17P Request for examination filed

Effective date: 20120411

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

DAX Request for extension of the european patent (deleted)
A4 Supplementary search report drawn up and despatched

Effective date: 20141001

RIC1 Information provided on ipc code assigned before grant

Ipc: A47C 7/44 20060101ALI20140926BHEP

Ipc: A47C 7/40 20060101AFI20140926BHEP

Ipc: A47C 31/02 20060101ALI20140926BHEP

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20170503