[go: up one dir, main page]

CA2394954A1 - Ergonomic chair - Google Patents

Ergonomic chair Download PDF

Info

Publication number
CA2394954A1
CA2394954A1 CA002394954A CA2394954A CA2394954A1 CA 2394954 A1 CA2394954 A1 CA 2394954A1 CA 002394954 A CA002394954 A CA 002394954A CA 2394954 A CA2394954 A CA 2394954A CA 2394954 A1 CA2394954 A1 CA 2394954A1
Authority
CA
Canada
Prior art keywords
base
chair
bar
parallel
seat
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
CA002394954A
Other languages
French (fr)
Other versions
CA2394954C (en
Inventor
Niels Diffrient
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.)
Humanscale Corp
Original Assignee
Individual
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
Priority claimed from US09/326,176 external-priority patent/US6709058B1/en
Application filed by Individual filed Critical Individual
Publication of CA2394954A1 publication Critical patent/CA2394954A1/en
Application granted granted Critical
Publication of CA2394954C publication Critical patent/CA2394954C/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • A47C1/036—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts including a head-rest
    • 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
    • A47C1/022—Reclining or easy chairs having independently-adjustable supporting parts
    • A47C1/03—Reclining or easy chairs having independently-adjustable supporting parts the parts being arm-rests
    • 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
    • A47C1/022—Reclining or easy chairs having independently-adjustable supporting parts
    • A47C1/023—Reclining or easy chairs having independently-adjustable supporting parts the parts being horizontally-adjustable seats ; Expandable seats or the like, e.g. seats with horizontally adjustable parts
    • 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
    • A47C1/03283—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
    • A47C7/00—Parts, details, or accessories of chairs or stools
    • A47C7/36—Supports for the head or the back
    • A47C7/38—Supports for the head or the back for the head, e.g. detachable
    • 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—Supports for the head or the back
    • A47C7/40—Supports for the head or the back for the back
    • A47C7/402—Supports for the head or the back for the back adjustable in height

Landscapes

  • Health & Medical Sciences (AREA)
  • Dentistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Chairs For Special Purposes, Such As Reclining Chairs (AREA)

Abstract

A chair of the tilting type which includes a base (110), a seat (111) and back (112), with the base (110) pivotally supporting the seat (111) with two parallel links (120, 123) of a four-bar parallel linkage, with one of the links extending to support the back. The four-bar linkage is duplicated on each side of the chair by forming the two opposite parallel links or cranks (123) from the upturned ends of the tubes (113) which pass through the base (110) in parallel but vertically offset fashion, the base (110) thus forming the fixed bar of the linkage with its opposite bar or coupler being formed by the seat (111). Also disclosed is an adjustable armrest (600) and a headrest (370) that is pushed into lace when the chair is reclined and retracted.
CA002394954A 1999-06-04 2000-06-02 Ergonomic chair Expired - Lifetime CA2394954C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US09/326,176 US6709058B1 (en) 1999-04-09 1999-06-04 Ergonomic chair
US09/326,176 1999-06-04
PCT/US2000/015327 WO2000074531A2 (en) 1999-06-04 2000-06-02 Ergonomic chair

Publications (2)

Publication Number Publication Date
CA2394954A1 true CA2394954A1 (en) 2000-12-14
CA2394954C CA2394954C (en) 2007-09-25

Family

ID=23271116

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002394954A Expired - Lifetime CA2394954C (en) 1999-06-04 2000-06-02 Ergonomic chair

Country Status (5)

Country Link
AR (1) AR026126A1 (en)
AU (1) AU5318700A (en)
CA (1) CA2394954C (en)
TW (1) TWI235645B (en)
WO (1) WO2000074531A2 (en)

Families Citing this family (39)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU783829B2 (en) 2000-09-28 2005-12-08 Formway Furniture Limited A reclinable chair
DE10161587A1 (en) 2001-12-14 2003-06-26 Dauphin Friedrich W Gmbh chair
GB2400312B (en) * 2002-02-13 2006-07-26 Miller Herman Inc Back support structure
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
USD509969S1 (en) 2003-09-05 2005-09-27 Steelcase Development Corporation Seating unit
USD536890S1 (en) 2004-03-03 2007-02-20 Steelcase Development Corporation Seating unit
FR2876639B1 (en) * 2004-10-20 2008-04-18 Faurecia Sieges Automobile SEAT WITH ARMREST HAVING MULTIPLE POSITIONS AND VEHICLE COMPRISING SUCH A SEAT
DE102005020237B3 (en) * 2005-04-28 2006-08-17 Bock 1 Gmbh & Co. Kg Synchronous mechanism e.g. for correlated seat backrest movement of office chair, is connected to chair column base carrier, seat support and backrest carrier with tiltable backrest carrier arranged around transverse axis
DE202005010097U1 (en) 2005-06-26 2006-11-09 Bock 1 Gmbh & Co. Kg Synchronous mechanism for the seat-backrest movement of an office chair comprises a base support placed on a chair column, a seat support and a backrest support
DE202006010843U1 (en) * 2006-07-12 2006-10-05 Deisig, Wolfgang Office chair has neck and shoulder support mounted at top of back rest which is connected by Bowden cables on either side to swiveling console which supports seat, so that it is adjusted as backrest is reclined
CN102098945B (en) 2008-05-02 2013-11-06 霍沃思公司 Tension mechanism for a weight-responsive chair
CA2751696C (en) 2009-02-25 2016-11-08 Donati S.P.A. Device for synchronizing the tilt of a chair back and seat
USD657166S1 (en) 2010-04-13 2012-04-10 Herman Miller, Inc. Chair
USD639091S1 (en) 2010-04-13 2011-06-07 Herman Miller, Inc. Backrest
USD650206S1 (en) 2010-04-13 2011-12-13 Herman Miller, Inc. Chair
USD653061S1 (en) 2010-04-13 2012-01-31 Herman Miller, Inc. Chair
US8449037B2 (en) 2010-04-13 2013-05-28 Herman Miller, Inc. Seating structure with a contoured flexible backrest
USD652657S1 (en) 2010-04-13 2012-01-24 Herman Miller, Inc. Chair
USD637423S1 (en) 2010-04-13 2011-05-10 Herman Miller, Inc. Chair
AU2010354307B2 (en) * 2010-05-26 2014-10-02 Takano Co., Ltd. Reaction Force Mechanism for Backrest of Chair and Chair Mounted with the Same
DE102010046994B4 (en) * 2010-09-30 2023-01-12 Bock 1 Gmbh & Co. Kg synchronous mechanism
US9504326B1 (en) 2012-04-10 2016-11-29 Humanscale Corporation Reclining chair
US11304528B2 (en) 2012-09-20 2022-04-19 Steelcase Inc. Chair assembly with upholstery covering
USD697726S1 (en) 2012-09-20 2014-01-21 Steelcase Inc. Chair
USD721529S1 (en) 2013-06-07 2015-01-27 Steelcase Inc. Handle apparatus
GB2509049A (en) * 2012-11-05 2014-06-25 James Spencer & Co Ltd A chair with a pivoting armrest to improve access
USD703457S1 (en) 2013-06-07 2014-04-29 Herman Miller, Inc. Chair
PL2886015T3 (en) 2013-12-17 2017-01-31 Donati S.P.A. Chair with adjustable backrest
US10194750B2 (en) 2015-04-13 2019-02-05 Steelcase Inc. Seating arrangement
US11259637B2 (en) 2015-04-13 2022-03-01 Steelcase Inc. Seating arrangement
WO2016168185A1 (en) 2015-04-13 2016-10-20 Steelcase Inc. Seating arrangement
DE202016105769U1 (en) * 2016-10-14 2016-11-10 Topstar Gmbh seating
CN107319816A (en) * 2017-07-26 2017-11-07 广州视源电子科技股份有限公司 Foldable armrest and seat
CN107594960B (en) * 2017-10-24 2024-06-07 安吉卡贝隆家具有限公司 Adjustable chair
CN113507865A (en) 2019-02-21 2021-10-15 斯特尔凯斯公司 Body support assembly and methods for use and assembly thereof
US11357329B2 (en) 2019-12-13 2022-06-14 Steelcase Inc. Body support assembly and methods for the use and assembly thereof
CN115429555A (en) * 2021-06-04 2022-12-06 上海酷哲动力系统有限公司 Folding wheelchair and folding method thereof
CN115429561A (en) * 2021-06-04 2022-12-06 上海酷哲动力系统有限公司 Hand subassembly, lean on and hold up subassembly and wheelchair
USD1063474S1 (en) 2022-09-07 2025-02-25 Steelcase Inc. Chair

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4270798A (en) * 1979-07-10 1981-06-02 Coach & Car Equipment Corporation Breakaway arm for seat
FR2575051B1 (en) * 1984-12-21 1987-02-27 Linguanotto Ets SEAT, IN PARTICULAR WORKING SEAT, IN SEVERAL POSITIONS
DE3617624A1 (en) * 1986-05-26 1987-12-03 Drabert Soehne CHAIR

Also Published As

Publication number Publication date
AU5318700A (en) 2000-12-28
CA2394954C (en) 2007-09-25
AR026126A1 (en) 2003-01-29
WO2000074531A2 (en) 2000-12-14
TWI235645B (en) 2005-07-11
WO2000074531A3 (en) 2001-08-09

Similar Documents

Publication Publication Date Title
CA2394954A1 (en) Ergonomic chair
US6923503B2 (en) Chair with movable seat and backrest
EP0826327A3 (en) Seating furniture with synchronised seat and backrest
US20020190554A1 (en) Chair
WO2000072727A3 (en) Synchrotilt chair
CA2272767A1 (en) Chair, in particular office chair
CA2313565A1 (en) Chair
EP0572504A1 (en) Ergonomically improved chair or armchair.
CA2357948A1 (en) A reclinable chair
US20020171276A1 (en) Synchronizing mechanism for correlated seat/backrest motion of an office chair
EP1364603A3 (en) High-chair for children with easy actuation
EP1637391A3 (en) Seat with mechanics for ergonomic adjustment
PT1060694E (en) CHAIR, PARTICULARLY DESKTOP
JPS6395008A (en) Chair equipped with movable seat and backrest
GB2263411A (en) Multi-position exercise bench
CA2458092A1 (en) Raising wheel chair
CA2309924A1 (en) Chair with synchronized tilting seat and back
GB2182241A (en) A chair without a back/a stool
US4607883A (en) Reclining mechanism for easy chair
EP0941679A3 (en) Rocking and gliding mechanism
AU2703192A (en) Device for adjusting seat frame and back rest of chair of swivel type chair
JP2004530597A (en) Seat structure with adjustable seat part
CA2235952C (en) A reclinable outdoor chair
CA2044102A1 (en) Folding chair with continuously variable self-balanced tilting action
HU202393B (en) Adjustable chair

Legal Events

Date Code Title Description
EEER Examination request
MKEX Expiry

Effective date: 20200602