EP2668871A4 - Chair backrest device - Google Patents

Chair backrest device

Info

Publication number
EP2668871A4
EP2668871A4 EP11857303.9A EP11857303A EP2668871A4 EP 2668871 A4 EP2668871 A4 EP 2668871A4 EP 11857303 A EP11857303 A EP 11857303A EP 2668871 A4 EP2668871 A4 EP 2668871A4
Authority
EP
European Patent Office
Prior art keywords
chair backrest
backrest device
chair
backrest
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
EP11857303.9A
Other languages
German (de)
French (fr)
Other versions
EP2668871B1 (en
EP2668871A1 (en
Inventor
Atsunori Matsumoto
Hiroshi Saotome
Yoshinori Isogai
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 EP2668871A1 publication Critical patent/EP2668871A1/en
Publication of EP2668871A4 publication Critical patent/EP2668871A4/en
Application granted granted Critical
Publication of EP2668871B1 publication Critical patent/EP2668871B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47CCHAIRS; SOFAS; BEDS
    • A47C7/00Parts, details, or accessories of chairs or stools
    • A47C7/36Support for the head or the back
    • A47C7/40Support for the head or the back for the back
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47CCHAIRS; SOFAS; BEDS
    • A47C7/00Parts, details, or accessories of chairs or stools
    • A47C7/36Support for the head or the back
    • A47C7/40Support for the head or the back for the back
    • A47C7/46Support for the head or the back for the back with special, e.g. adjustable, lumbar region support profile; "Ackerblom" profile chairs
EP11857303.9A 2011-01-27 2011-01-27 Chair backrest device Not-in-force EP2668871B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2011/051607 WO2012101803A1 (en) 2011-01-27 2011-01-27 Chair backrest device

Publications (3)

Publication Number Publication Date
EP2668871A1 EP2668871A1 (en) 2013-12-04
EP2668871A4 true EP2668871A4 (en) 2014-08-27
EP2668871B1 EP2668871B1 (en) 2017-07-19

Family

ID=46580406

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11857303.9A Not-in-force EP2668871B1 (en) 2011-01-27 2011-01-27 Chair backrest device

Country Status (4)

Country Link
US (1) US20130313884A1 (en)
EP (1) EP2668871B1 (en)
CN (1) CN103391733A (en)
WO (1) WO2012101803A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107087916A (en) * 2017-07-06 2017-08-25 姚燕芳 Ergonomics chair

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050104428A1 (en) * 2002-01-28 2005-05-19 Walker Brock M. Sacral support member for seating
CA2742008A1 (en) * 2008-10-29 2010-05-06 Okamura Corporation Chair backrest

Family Cites Families (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3512831A (en) * 1964-08-24 1970-05-19 Hyland C Flint Spring seat
GB1126734A (en) * 1965-04-09 1968-09-11 Pirelli Ltd Articles of furniture upholstery supports and a method of mounting said supports
GB1133701A (en) * 1965-04-21 1968-11-13 Pirelli Ltd Articles of furniture, upholstery supports and a method of mounting said supports
JPS6270851U (en) * 1985-10-25 1987-05-06
JPH01199426A (en) 1988-02-04 1989-08-10 Canon Inc Manufacture of semiconductor device
JP3200409B2 (en) * 1998-04-06 2001-08-20 愛知株式会社 Seat stretching method, chair seat and backrest
JP2002119366A (en) 2000-10-16 2002-04-23 Kokuyo Co Ltd Chair
JP4477766B2 (en) * 2000-10-30 2010-06-09 株式会社岡村製作所 Chair backboard
JP2002219985A (en) * 2001-01-24 2002-08-06 Delta Tooling Co Ltd Seat for vehicle
US7014269B2 (en) * 2001-06-15 2006-03-21 Hon Technology Inc. Chair back construction
US6983997B2 (en) * 2001-06-29 2006-01-10 Haworth, Inc. Chair having a suspension seat assembly
US6550866B1 (en) * 2002-01-24 2003-04-22 Tung-Hua Su Chair backrest with ventilating function
US6698830B1 (en) * 2002-12-31 2004-03-02 Ronald K. Gaines Portable seat and storage apparatus
US20040262975A1 (en) * 2003-06-27 2004-12-30 Tung-Hua Su Backrest assembly
JP4818601B2 (en) * 2004-10-13 2011-11-16 株式会社岡村製作所 Chair with hanger
JP4295266B2 (en) * 2005-11-04 2009-07-15 株式会社岡村製作所 Chair backrest device
JP4904519B2 (en) * 2006-01-30 2012-03-28 コクヨ株式会社 Chair
CA2895942A1 (en) * 2007-03-13 2008-09-13 Hni Technologies Inc. Dynamic chair back lumbar support system
US8251454B2 (en) * 2007-11-02 2012-08-28 Okamura Corporation Backrest of the chair and adaptation device for the same
JP5472964B2 (en) * 2008-09-12 2014-04-16 コクヨ株式会社 Chair
JP5437724B2 (en) * 2009-07-27 2014-03-12 株式会社岡村製作所 Chair backrest device
WO2011099522A1 (en) * 2010-02-10 2011-08-18 株式会社岡村製作所 Stretching structure of chair upholstery material

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050104428A1 (en) * 2002-01-28 2005-05-19 Walker Brock M. Sacral support member for seating
CA2742008A1 (en) * 2008-10-29 2010-05-06 Okamura Corporation Chair backrest

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2012101803A1 *

Also Published As

Publication number Publication date
US20130313884A1 (en) 2013-11-28
CN103391733A (en) 2013-11-13
EP2668871B1 (en) 2017-07-19
WO2012101803A1 (en) 2012-08-02
EP2668871A1 (en) 2013-12-04

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