EP2708158A4 - Chair back device - Google Patents

Chair back device

Info

Publication number
EP2708158A4
EP2708158A4 EP11864921.9A EP11864921A EP2708158A4 EP 2708158 A4 EP2708158 A4 EP 2708158A4 EP 11864921 A EP11864921 A EP 11864921A EP 2708158 A4 EP2708158 A4 EP 2708158A4
Authority
EP
European Patent Office
Prior art keywords
chair back
back device
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Withdrawn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
EP11864921.9A
Other languages
German (de)
French (fr)
Other versions
EP2708158A1 (en
Inventor
Naoyuki Okuda
Syouichi Izawa
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 EP2708158A1 publication Critical patent/EP2708158A1/en
Publication of EP2708158A4 publication Critical patent/EP2708158A4/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Withdrawn legal-status Critical Current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
    • 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
    • A47C7/46—Support for the head or the back for the back with special, e.g. adjustable, lumbar region support profile; "Ackerblom" profile chairs
    • 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
    • A47C7/44—Support for the head or the back for the back with elastically-mounted back-rest or backrest-seat unit in the base frame
    • A47C7/445—Support for the head or the back for the back with elastically-mounted back-rest or backrest-seat unit in the base frame with bar or leaf springs
EP11864921.9A 2011-05-11 2011-05-11 Chair back device Withdrawn EP2708158A4 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2011/060883 WO2012153408A1 (en) 2011-05-11 2011-05-11 Chair back device

Publications (2)

Publication Number Publication Date
EP2708158A1 EP2708158A1 (en) 2014-03-19
EP2708158A4 true EP2708158A4 (en) 2014-09-24

Family

ID=47138907

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11864921.9A Withdrawn EP2708158A4 (en) 2011-05-11 2011-05-11 Chair back device

Country Status (3)

Country Link
EP (1) EP2708158A4 (en)
CN (1) CN103533864A (en)
WO (1) WO2012153408A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NZ779049A (en) * 2016-02-05 2023-12-22 Formway Furniture Ltd A chair and components

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008237333A (en) * 2007-03-26 2008-10-09 Okamura Corp Lumbar support device in chair

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4238122B2 (en) 2003-11-28 2009-03-11 株式会社イトーキ Chair seat plate and back plate
JP4448487B2 (en) 2005-11-04 2010-04-07 株式会社岡村製作所 Chair backrest device
US8251454B2 (en) * 2007-11-02 2012-08-28 Okamura Corporation Backrest of the chair and adaptation device for the same
JP5336063B2 (en) * 2007-11-02 2013-11-06 株式会社岡村製作所 Chair backrest device
JP5276304B2 (en) 2007-11-09 2013-08-28 株式会社内田洋行 Chair backrest structure
JP4932875B2 (en) * 2009-06-08 2012-05-16 株式会社岡村製作所 Chair backrest device
JP5693837B2 (en) * 2009-10-19 2015-04-01 株式会社岡村製作所 Chair
JP5524578B2 (en) * 2009-11-12 2014-06-18 株式会社岡村製作所 Chair backrest device

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008237333A (en) * 2007-03-26 2008-10-09 Okamura Corp Lumbar support device in chair

Also Published As

Publication number Publication date
CN103533864A (en) 2014-01-22
WO2012153408A1 (en) 2012-11-15
EP2708158A1 (en) 2014-03-19

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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: 20131105

AK Designated contracting states

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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: 20140827

RIC1 Information provided on ipc code assigned before grant

Ipc: A47C 7/44 20060101ALI20140821BHEP

Ipc: A47C 7/46 20060101AFI20140821BHEP

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: 20150324