US3059971A - Seat comprising a plurality of individually adjustable back members - Google Patents

Seat comprising a plurality of individually adjustable back members Download PDF

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Publication number
US3059971A
US3059971A US111322A US11132261A US3059971A US 3059971 A US3059971 A US 3059971A US 111322 A US111322 A US 111322A US 11132261 A US11132261 A US 11132261A US 3059971 A US3059971 A US 3059971A
Authority
US
United States
Prior art keywords
seat
chair
back rest
members
adjustable back
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.)
Expired - Lifetime
Application number
US111322A
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English (en)
Inventor
Becker Otto Alfred
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.)
Individual
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 to DEB57483A priority Critical patent/DE1221772B/de
Priority to CH540161A priority patent/CH413263A/de
Priority to GB16822/61A priority patent/GB925337A/en
Application filed by Individual filed Critical Individual
Priority to US111322A priority patent/US3059971A/en
Priority to FR863225A priority patent/FR1298392A/fr
Application granted granted Critical
Publication of US3059971A publication Critical patent/US3059971A/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • A47C1/022—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
    • A47C3/00—Chairs characterised by structural features; Chairs or stools with rotatable or vertically-adjustable seats
    • A47C3/20—Chairs or stools with vertically-adjustable seats
    • A47C3/24—Chairs or stools with vertically-adjustable seats with vertical spindle
    • 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
    • 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
    • A47C7/405—Supports for the head or the back for the back with double backrests
    • 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
    • A47C7/44—Supports for the head or the back for the back with elastically-mounted back-rest or backrest-seat unit in the base frame
    • A47C7/445—Supports 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
    • 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
    • A47C7/46—Supports for the head or the back for the back with special, e.g. adjustable, lumbar region support profile; "Ackerblom" profile chairs

Definitions

  • a back rest frame is adjustably mounted in the seat frame for forward and rearward displacement relative thereto and supports two separate back rests or pads, namely one for the small of the back of the chair occupant and a second for the upper or shoulder portion of his back, each back rest or pad being adjustable in vertical direction.
  • FIG. 1 is a rear view of a vertically adjustable swivel chair.
  • FIG. 2 is a side elevation of this chair
  • FIG. 3 shows a detail of FIG. 2 in a side elevation on an enlarged scale.
  • the vertically adjustable swivel chair comprises a chair frame 1 with base ring 2, a seat 3 resting upon a seat frame 15, 16, 17 mounted on said chair frame, and padlike back supporting members 4a, 4b.
  • the lower member 4a serves to support the small of the human back
  • the upper member 4b serves to support the human body above the small of the back.
  • Each of the members 4a, 4b is individually vertically slidably mounted on a resilient back rest frame formed by round-section steel rods 5a and 5b, respectively, and secured thereto with set screws 6a and 6b, respectively, which cooperate with bridge members 70 and 7b, respectively, to force the round-section rods 5:: and 5b against the members 4a, 4b, respectively.
  • said back supports may be mounted on said bridge members 7a, 7b, pivotably on horizontal spindles 9a, 9b and supported by springs 10a, 1012.
  • an adjustable chair comprising in combination (a) a substantially horizontal seat frame,
  • each of said back rest frames adjustably mounted upon said seat frame for individual displacement forwardly and rearwardly relative thereto
  • an adjustable chair comprising in combination (a) a substantially horizontal seat frame,

Landscapes

  • Health & Medical Sciences (AREA)
  • Dentistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Chair Legs, Seat Parts, And Backrests (AREA)
  • Chairs For Special Purposes, Such As Reclining Chairs (AREA)
  • Special Chairs (AREA)
US111322A 1960-04-13 1961-05-19 Seat comprising a plurality of individually adjustable back members Expired - Lifetime US3059971A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
DEB57483A DE1221772B (de) 1960-04-13 1960-04-13 Sitzmoebel
CH540161A CH413263A (de) 1960-04-13 1961-05-08 Sitzmöbel mit verstellbarer, an die Körperform anpassbarer Rückenlehne
GB16822/61A GB925337A (en) 1960-04-13 1961-05-09 Improvements in or relating to seats each having an adjustable back
US111322A US3059971A (en) 1960-04-13 1961-05-19 Seat comprising a plurality of individually adjustable back members
FR863225A FR1298392A (fr) 1960-04-13 1961-05-29 Chaise ou meuble analogue comportant un dossier subdivisé, élastique et déplaçable ainsi qu'un siège pouvant coulisser

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
DEB57483A DE1221772B (de) 1960-04-13 1960-04-13 Sitzmoebel
CH540161A CH413263A (de) 1960-04-13 1961-05-08 Sitzmöbel mit verstellbarer, an die Körperform anpassbarer Rückenlehne
GB16822/61A GB925337A (en) 1960-04-13 1961-05-09 Improvements in or relating to seats each having an adjustable back
US111322A US3059971A (en) 1960-04-13 1961-05-19 Seat comprising a plurality of individually adjustable back members
FR863225A FR1298392A (fr) 1960-04-13 1961-05-29 Chaise ou meuble analogue comportant un dossier subdivisé, élastique et déplaçable ainsi qu'un siège pouvant coulisser

Publications (1)

Publication Number Publication Date
US3059971A true US3059971A (en) 1962-10-23

Family

ID=45953337

Family Applications (1)

Application Number Title Priority Date Filing Date
US111322A Expired - Lifetime US3059971A (en) 1960-04-13 1961-05-19 Seat comprising a plurality of individually adjustable back members

Country Status (5)

Country Link
US (1) US3059971A (de)
CH (1) CH413263A (de)
DE (1) DE1221772B (de)
FR (1) FR1298392A (de)
GB (1) GB925337A (de)

Cited By (51)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3215470A (en) * 1964-05-22 1965-11-02 Milsco Mfg Co Seat with adjustable elements
US3469883A (en) * 1967-07-20 1969-09-30 Hyland C Flint Seat assembly
US3765718A (en) * 1972-01-10 1973-10-16 C Chen Folding chair
DE2820063A1 (de) * 1977-05-09 1978-12-07 Center Design Res & Dev Stuhl
US4602818A (en) * 1983-01-13 1986-07-29 Roder Gmbh Sitzmobelwerke Apparatus for the attachment of a lower back support upholstery to a chair
US4732423A (en) * 1986-10-27 1988-03-22 Bio-Architectural Design, Inc. Invalid's chair construction
US4744603A (en) * 1986-04-10 1988-05-17 Steelcase Inc. Chair shell with selective back stiffening
WO1989009557A1 (en) * 1988-04-12 1989-10-19 Giordano Pasutto An adjustable lumbar cushion used for chairs, arm-chairs and others
US5385388A (en) * 1991-11-12 1995-01-31 Steelcase Inc. Split back chair
US5730688A (en) * 1996-03-28 1998-03-24 Prusick; Vincent R. Portable abdominal-lumbar exercise device
US5944382A (en) * 1996-10-09 1999-08-31 Center For Design Research And Development N.V. Adjustable seating
USD429926S (en) * 1999-04-27 2000-08-29 Zi-Wen Cao Backrest support frame for a chair
US6126235A (en) * 1999-10-25 2000-10-03 Grove; James E. Chair back with adjustable lumbar cushion and clothes hanger hook included within a handle
US6146317A (en) * 1996-03-28 2000-11-14 Prusick; Vincent R. Exercising device
US6193315B1 (en) * 1999-02-26 2001-02-27 Hoshino Gakki Kabushiki Kaisha Backrest structure of a chair, particularly a drum chair
USD450209S1 (en) 1999-04-27 2001-11-13 Zi-Wen Cao Backrest support frame for a chair
US20020033626A1 (en) * 2000-09-19 2002-03-21 Han-Keel Yoo Chair for correcting an improper alignment of spinal vertebrae and method for correcting an improper alignment of spinal vertebrae by means of the chair
GB2390795A (en) * 2002-07-18 2004-01-21 Thomas William Douglas Harper Back support for fishing tackle seat box
US6843530B1 (en) * 2003-12-23 2005-01-18 Yao-Chuan Wu Multi-stage backrest assembly
US20050029849A1 (en) * 2003-06-23 2005-02-10 Goetz Mark W. Tilt chair
WO2005006917A3 (en) * 2003-07-09 2005-05-12 Gary L Sanchez Task chair
US20050184570A1 (en) * 2002-03-29 2005-08-25 Sanchez Gary L. Task chair
US20050189810A1 (en) * 2003-12-23 2005-09-01 Yao-Chuan Wu Multi-stage backrest assembly
US7040703B2 (en) * 2002-03-29 2006-05-09 Garrex Llc Health chair a dynamically balanced task chair
US20060175884A1 (en) * 2005-02-09 2006-08-10 Jenkins Jeffrey B Mobile ergonomic rotating adjustable chair with lumbar support
US7222920B1 (en) * 2005-06-17 2007-05-29 Washington James N Adjustable chair
US20070188003A1 (en) * 2005-07-04 2007-08-16 Wu Wenjin Chair with armrests
GB2448688A (en) * 2007-04-23 2008-10-29 Jcm Seating Solutions Ltd A segmented seat back assembly
USD587914S1 (en) 2008-01-28 2009-03-10 Herman Miller, Inc. Chair
US7523992B1 (en) * 2007-08-02 2009-04-28 Da Yin Wei Tong Co., Ltd. Mechanisms for flexibly securing J-bar to chair backrest and chair headrest respectively
USD597771S1 (en) 2008-01-28 2009-08-11 Herman Miller, Inc. Backrest
US7625046B2 (en) 2002-03-29 2009-12-01 Garrex Llc Task chair
US20100164266A1 (en) * 2008-12-29 2010-07-01 L & P Property Management Company Seat with independently adjustable user support assemblies
US20110304192A1 (en) * 2010-06-15 2011-12-15 Augustat Betty A Ergometric Chair Apparatus
US20120299350A1 (en) * 2009-01-23 2012-11-29 Backjoy Orthotics, Inc. Apparatus and system for dynamically correcting posture
US20130069411A1 (en) * 2011-09-21 2013-03-21 Brock Walker Bi-level headrest, body support structure and method of supporting a user's cranium
US8419133B2 (en) 2007-01-29 2013-04-16 Herman Miller, Inc. Seating structure with independently adjustable back
US20130175839A1 (en) * 2010-06-11 2013-07-11 Youngho Park Chair
US20140221881A1 (en) * 2013-02-06 2014-08-07 Better Back Technologies, LLC Device for repetitive spine extension at selectable lumbar levels for stimulation of vertebral segments
US20150015042A1 (en) * 2009-01-23 2015-01-15 Backjoy Orthotics, Llc Apparatus and system for dynamically correcting posture
FR3047394A1 (fr) * 2016-02-10 2017-08-11 Revology Sa Chaise a support lombaire flexible
US10827841B1 (en) * 2019-09-24 2020-11-10 Zhongshan Shi Songlin Furniture Co., Ltd Chair waist backrest height adjusting device
US10842281B2 (en) 2012-09-20 2020-11-24 Steelcase Inc. Control assembly for chair
US11109683B2 (en) 2019-02-21 2021-09-07 Steelcase Inc. Body support assembly and method for the use and assembly thereof
US11229294B2 (en) 2012-09-20 2022-01-25 Steelcase Inc. Chair assembly with upholstery covering
US11304528B2 (en) 2012-09-20 2022-04-19 Steelcase Inc. Chair assembly with upholstery covering
US11357329B2 (en) 2019-12-13 2022-06-14 Steelcase Inc. Body support assembly and methods for the use and assembly thereof
US20220322833A1 (en) * 2020-02-10 2022-10-13 X-Chair, LLC Chair assemblies, systems, and apparatuses having integrated technologies, and related methods
US11744375B2 (en) * 2021-07-14 2023-09-05 Anthro Form, Llc Seat configuration
US20230414002A1 (en) * 2021-07-14 2023-12-28 Anthro Form, Llc Seat configuration
USD1032267S1 (en) 2021-12-09 2024-06-25 Michael V. Halliday Chair

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NZ208410A (en) * 1984-06-06 1989-02-24 Atlas Furniture Ltd Chair with dual independently adjustable pivotal backrest parts
DE3860611D1 (de) * 1987-01-30 1990-10-25 Equus Marketing Ag Stuhl, insbesondere buerostuhl mit einem sitz und einer mehrteiligen rueckenlehne.
US4795212A (en) * 1988-01-29 1989-01-03 Herman Miller, Inc. Chair back adjustment
NO165054C (no) * 1988-09-07 1990-12-19 Asbjoernsen & Jan Lade A S Sve Anordning ved omstillbar ryggstoepute paa stol.
JP2746713B2 (ja) * 1988-07-19 1998-05-06 アウラ・ヘルベルト・デー・ストーレ・ゲゼルシャフト・ミット・ベシュレンクテル・ハフツンク・ウント・コムパニー 背もたれ
DE69400112T2 (de) * 1994-08-12 1996-10-24 Steelcase Strafor (S.A.), Strasburg/Strasbourg Neue Struktur für Bürostühle
DE20104124U1 (de) * 2001-03-08 2001-09-27 Schipke, Norbert, 93142 Maxhütte-Haidhof Höhenverstellbare Rückenlehne für Fahrzeugsitze sowie Fahrzeugsitz
GB2414176B (en) 2002-02-13 2006-09-13 Miller Herman Inc Tilt chair having a flexible back, adjustable armrests and adjustable seat depth, and methods for the use thereof
ITTO20020775A1 (it) * 2002-09-06 2004-03-07 Pro Cord Spa Schienale di sedia.
USD652657S1 (en) 2010-04-13 2012-01-24 Herman Miller, Inc. Chair
USD639091S1 (en) 2010-04-13 2011-06-07 Herman Miller, Inc. Backrest
USD637423S1 (en) 2010-04-13 2011-05-10 Herman Miller, Inc. Chair
USD653061S1 (en) 2010-04-13 2012-01-31 Herman Miller, Inc. Chair
USD657166S1 (en) 2010-04-13 2012-04-10 Herman Miller, Inc. Chair
US8449037B2 (en) 2010-04-13 2013-05-28 Herman Miller, Inc. Seating structure with a contoured flexible backrest
USD650206S1 (en) 2010-04-13 2011-12-13 Herman Miller, Inc. Chair
GB2543565B (en) * 2015-10-23 2019-10-09 Ratstands Ltd Stackable chair

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US693685A (en) * 1900-02-27 1902-02-18 George L Case Back for stools.
GB332759A (en) * 1929-08-06 1930-07-31 Frederick Hagger Headley Improvements relating to chairs, seats and the like
US2063732A (en) * 1934-11-30 1936-12-08 Florence L Gailey Chair
US2400630A (en) * 1943-01-26 1946-05-21 Roy A Cramer Chair

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US2578879A (en) * 1945-09-15 1951-12-18 Sturgis Posture Chair Company Adjustable bisectional back rest
US2692012A (en) * 1946-03-29 1954-10-19 Cramer Posture Chair Co Inc Adjustable chair back pivoted above seat
US2756809A (en) * 1954-06-30 1956-07-31 Endresen Ernst Back support for chairs, car seats, and the like
US2767777A (en) * 1954-07-26 1956-10-23 Kriger Josephine Adjustable back in a dual purpose chair structure
US2812804A (en) * 1954-08-16 1957-11-12 Sandor Ralph Adjustable back rest for seat
US2843195A (en) * 1956-01-25 1958-07-15 Alvar E A Barvaeus Self-adjusting back support

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US693685A (en) * 1900-02-27 1902-02-18 George L Case Back for stools.
GB332759A (en) * 1929-08-06 1930-07-31 Frederick Hagger Headley Improvements relating to chairs, seats and the like
US2063732A (en) * 1934-11-30 1936-12-08 Florence L Gailey Chair
US2400630A (en) * 1943-01-26 1946-05-21 Roy A Cramer Chair

Cited By (93)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3215470A (en) * 1964-05-22 1965-11-02 Milsco Mfg Co Seat with adjustable elements
US3469883A (en) * 1967-07-20 1969-09-30 Hyland C Flint Seat assembly
US3765718A (en) * 1972-01-10 1973-10-16 C Chen Folding chair
DE2820063A1 (de) * 1977-05-09 1978-12-07 Center Design Res & Dev Stuhl
US4602818A (en) * 1983-01-13 1986-07-29 Roder Gmbh Sitzmobelwerke Apparatus for the attachment of a lower back support upholstery to a chair
US4744603A (en) * 1986-04-10 1988-05-17 Steelcase Inc. Chair shell with selective back stiffening
US5611598A (en) * 1986-04-10 1997-03-18 Steelcase Inc. Chair having back shell with selective stiffening
US4732423A (en) * 1986-10-27 1988-03-22 Bio-Architectural Design, Inc. Invalid's chair construction
WO1989009557A1 (en) * 1988-04-12 1989-10-19 Giordano Pasutto An adjustable lumbar cushion used for chairs, arm-chairs and others
US5385388A (en) * 1991-11-12 1995-01-31 Steelcase Inc. Split back chair
US5730688A (en) * 1996-03-28 1998-03-24 Prusick; Vincent R. Portable abdominal-lumbar exercise device
US6146317A (en) * 1996-03-28 2000-11-14 Prusick; Vincent R. Exercising device
US6312366B1 (en) * 1996-03-28 2001-11-06 Vipa, L.L.C. Exercising device
US5944382A (en) * 1996-10-09 1999-08-31 Center For Design Research And Development N.V. Adjustable seating
US6193315B1 (en) * 1999-02-26 2001-02-27 Hoshino Gakki Kabushiki Kaisha Backrest structure of a chair, particularly a drum chair
USD429926S (en) * 1999-04-27 2000-08-29 Zi-Wen Cao Backrest support frame for a chair
USD450209S1 (en) 1999-04-27 2001-11-13 Zi-Wen Cao Backrest support frame for a chair
US6126235A (en) * 1999-10-25 2000-10-03 Grove; James E. Chair back with adjustable lumbar cushion and clothes hanger hook included within a handle
US20020033626A1 (en) * 2000-09-19 2002-03-21 Han-Keel Yoo Chair for correcting an improper alignment of spinal vertebrae and method for correcting an improper alignment of spinal vertebrae by means of the chair
US6626494B2 (en) * 2000-09-19 2003-09-30 Han-Keel Yoo Chair and method for correcting an improper alignment of spinal vertebrae
US20050184570A1 (en) * 2002-03-29 2005-08-25 Sanchez Gary L. Task chair
US7396082B2 (en) 2002-03-29 2008-07-08 Garrex Llc Task chair
US7963606B2 (en) * 2002-03-29 2011-06-21 Garrex Llc Task chair
US20100038947A1 (en) * 2002-03-29 2010-02-18 Sanchez Gary L Task Chair
US7625046B2 (en) 2002-03-29 2009-12-01 Garrex Llc Task chair
US7040703B2 (en) * 2002-03-29 2006-05-09 Garrex Llc Health chair a dynamically balanced task chair
GB2390795A (en) * 2002-07-18 2004-01-21 Thomas William Douglas Harper Back support for fishing tackle seat box
US7207629B2 (en) 2003-06-23 2007-04-24 Herman Miller, Inc. Tilt chair
US20050029849A1 (en) * 2003-06-23 2005-02-10 Goetz Mark W. Tilt chair
WO2005006917A3 (en) * 2003-07-09 2005-05-12 Gary L Sanchez Task chair
US6843530B1 (en) * 2003-12-23 2005-01-18 Yao-Chuan Wu Multi-stage backrest assembly
US20050189810A1 (en) * 2003-12-23 2005-09-01 Yao-Chuan Wu Multi-stage backrest assembly
US6945601B1 (en) * 2003-12-23 2005-09-20 Yao-Chuan Wu Multi-stage backrest assembly
US8622474B2 (en) * 2005-02-09 2014-01-07 Jeffrey B. Jenkins Mobile ergonomic rotating adjustable chair with lumbar support
US9756945B2 (en) 2005-02-09 2017-09-12 Jeffrey Jenkins Mobile ergonomic rotating adjustable chair with lumbar support
US9226582B2 (en) 2005-02-09 2016-01-05 Jeffrey B. Jenkins Mobile ergonomic rotating adjustable chair with lumbar support
US8308241B2 (en) * 2005-02-09 2012-11-13 Jenkins Jeffrey B Mobile ergonomic rotating adjustable chair with lumbar support
US8100476B2 (en) 2005-02-09 2012-01-24 Jenkins Jeffrey B Mobile ergonomic rotating adjustable chair with lumbar support
US20060175884A1 (en) * 2005-02-09 2006-08-10 Jenkins Jeffrey B Mobile ergonomic rotating adjustable chair with lumbar support
US7585028B2 (en) * 2005-02-09 2009-09-08 Jenkins Jeffrey B Mobile ergonomic rotating adjustable chair with lumbar support
US20090289483A1 (en) * 2005-02-09 2009-11-26 Jenkins Jeffrey B Mobile ergonomic rotating adjustable chair with lumbar support
US7222920B1 (en) * 2005-06-17 2007-05-29 Washington James N Adjustable chair
US20070188003A1 (en) * 2005-07-04 2007-08-16 Wu Wenjin Chair with armrests
US7357453B2 (en) * 2005-07-04 2008-04-15 Wu Wenjin Chair with armrests
US8469454B2 (en) 2007-01-29 2013-06-25 Herman Miller, Inc. Back construction
US8419133B2 (en) 2007-01-29 2013-04-16 Herman Miller, Inc. Seating structure with independently adjustable back
CN104305754A (zh) * 2007-01-29 2015-01-28 赫尔曼米勒有限公司 座位结构及其使用方法
CN102151023B (zh) * 2007-01-29 2015-09-02 赫尔曼米勒有限公司 座位结构及其使用方法
EP2292122A1 (de) 2007-04-23 2011-03-09 Jcm Seating Solutions Limited Sitz mit dynamischer Sitzlehne
US20090195038A1 (en) * 2007-04-23 2009-08-06 Jcm Seating Solutions Ltd. Seat with dynamic seat back
US8167371B2 (en) 2007-04-23 2012-05-01 Mark Carl Underwood Seat with dynamic seat back
WO2008129231A1 (en) 2007-04-23 2008-10-30 Jcm Seating Solutions Limited Seat with dynamic seat back
GB2448688A (en) * 2007-04-23 2008-10-29 Jcm Seating Solutions Ltd A segmented seat back assembly
US7523992B1 (en) * 2007-08-02 2009-04-28 Da Yin Wei Tong Co., Ltd. Mechanisms for flexibly securing J-bar to chair backrest and chair headrest respectively
USD587914S1 (en) 2008-01-28 2009-03-10 Herman Miller, Inc. Chair
USD597771S1 (en) 2008-01-28 2009-08-11 Herman Miller, Inc. Backrest
US20100164266A1 (en) * 2008-12-29 2010-07-01 L & P Property Management Company Seat with independently adjustable user support assemblies
US7967379B2 (en) * 2008-12-29 2011-06-28 L&P Property Management Company Seat with independently adjustable user support assemblies
US10849428B2 (en) 2009-01-23 2020-12-01 Backjoy Orthotics, Llc Apparatus and system for dynamically correcting posture
US20150015042A1 (en) * 2009-01-23 2015-01-15 Backjoy Orthotics, Llc Apparatus and system for dynamically correcting posture
US20120299350A1 (en) * 2009-01-23 2012-11-29 Backjoy Orthotics, Inc. Apparatus and system for dynamically correcting posture
US9427086B2 (en) * 2009-01-23 2016-08-30 Backjoy Orthotics, Llc Apparatus and system for dynamically correcting posture
US10034548B2 (en) * 2009-01-23 2018-07-31 Backjoy Orthotics, Llc Apparatus and system for dynamically correcting posture
US20130175839A1 (en) * 2010-06-11 2013-07-11 Youngho Park Chair
US20110304192A1 (en) * 2010-06-15 2011-12-15 Augustat Betty A Ergometric Chair Apparatus
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Also Published As

Publication number Publication date
GB925337A (en) 1963-05-08
FR1298392A (fr) 1962-07-13
DE1221772B (de) 1966-07-28
CH413263A (de) 1966-05-15

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