GB2165445B - Seat with dynamic backrest portion - Google Patents

Seat with dynamic backrest portion

Info

Publication number
GB2165445B
GB2165445B GB08522857A GB8522857A GB2165445B GB 2165445 B GB2165445 B GB 2165445B GB 08522857 A GB08522857 A GB 08522857A GB 8522857 A GB8522857 A GB 8522857A GB 2165445 B GB2165445 B GB 2165445B
Authority
GB
United Kingdom
Prior art keywords
sitter
frame
seat
movement
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.)
Expired
Application number
GB08522857A
Other versions
GB2165445A (en
GB8522857D0 (en
Inventor
Ekkehard Anderle
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 GB848425908A priority Critical patent/GB8425908D0/en
Priority to GB858506569A priority patent/GB8506569D0/en
Priority to GB08522857A priority patent/GB2165445B/en
Application filed by Individual filed Critical Individual
Priority to PCT/GB1985/000458 priority patent/WO1986002243A1/en
Priority to EP85905073A priority patent/EP0232270B1/en
Priority to DE8585905073T priority patent/DE3584374D1/en
Priority to AT85905073T priority patent/ATE68078T1/en
Publication of GB8522857D0 publication Critical patent/GB8522857D0/en
Publication of GB2165445A publication Critical patent/GB2165445A/en
Application granted granted Critical
Publication of GB2165445B publication Critical patent/GB2165445B/en
Expired 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
    • A47C1/032—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest
    • A47C1/03294—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest slidingly movable in the base frame, e.g. by rollers
    • 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
    • A47C1/03205—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest having adjustable and lockable inclination
    • 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
    • A47C1/03205—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest having adjustable and lockable inclination
    • A47C1/03211—Reclining or easy chairs having coupled concurrently adjustable supporting parts the parts being movably-coupled seat and back-rest having adjustable and lockable inclination by electric motors
    • 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
    • A47C31/12—Means, e.g. measuring means for adapting chairs, beds or mattresses to the shape or weight of persons
    • A47C31/126—Means, e.g. measuring means for adapting chairs, beds or mattresses to the shape or weight of persons for 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
    • A47C7/405—Support 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—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

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)

Abstract

A seat comprises a frame 10, a sitting portion 12 yieldably carried on the frame so as to be displaceable downwardly under the weight of a sitter when seated thereon, a backrest 14 which includes at least a lower, lumbar region supporting part 16, and an L- shaped force transference lever 24 which is pivotally supported on a convex cam 22 secured on the frame, and which is pivotally secured at its lower free end to the rearward part of the sitting portion, and at its upper free end to the lower part 16 of the backrest. Force Fw produced by the weight of the sitter acts on portion 12 to produce movement downwards about axis 48 to actuate movement of lever 24 around axis 52 and movement of part 16 towards the sitter's back. Fluid pressure operated and/or controlled actuating devices may be used for moving portion 16 and the seat may incorporate a load sensing device (94, Fig. 9). <IMAGE>
GB08522857A 1984-10-12 1985-09-16 Seat with dynamic backrest portion Expired GB2165445B (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
GB848425908A GB8425908D0 (en) 1984-10-12 1984-10-12 Seat with dynamic lumbar support
GB858506569A GB8506569D0 (en) 1984-10-12 1985-03-14 Seat with dynamic lumbar support
GB08522857A GB2165445B (en) 1984-10-12 1985-09-16 Seat with dynamic backrest portion
EP85905073A EP0232270B1 (en) 1984-10-12 1985-10-14 Seat with dynamic backrest portion
PCT/GB1985/000458 WO1986002243A1 (en) 1984-10-12 1985-10-14 Seat with dynamic backrest portion
DE8585905073T DE3584374D1 (en) 1984-10-12 1985-10-14 CHAIR WITH AUTOMATICALLY ADJUSTING BACKREST.
AT85905073T ATE68078T1 (en) 1984-10-12 1985-10-14 CHAIR WITH AUTOMATICALLY ADJUSTING BACK.

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB848425908A GB8425908D0 (en) 1984-10-12 1984-10-12 Seat with dynamic lumbar support
GB858506569A GB8506569D0 (en) 1984-10-12 1985-03-14 Seat with dynamic lumbar support
GB08522857A GB2165445B (en) 1984-10-12 1985-09-16 Seat with dynamic backrest portion

Publications (3)

Publication Number Publication Date
GB8522857D0 GB8522857D0 (en) 1985-10-23
GB2165445A GB2165445A (en) 1986-04-16
GB2165445B true GB2165445B (en) 1988-10-12

Family

ID=27262479

Family Applications (3)

Application Number Title Priority Date Filing Date
GB848425908A Pending GB8425908D0 (en) 1984-10-12 1984-10-12 Seat with dynamic lumbar support
GB858506569A Pending GB8506569D0 (en) 1984-10-12 1985-03-14 Seat with dynamic lumbar support
GB08522857A Expired GB2165445B (en) 1984-10-12 1985-09-16 Seat with dynamic backrest portion

Family Applications Before (2)

Application Number Title Priority Date Filing Date
GB848425908A Pending GB8425908D0 (en) 1984-10-12 1984-10-12 Seat with dynamic lumbar support
GB858506569A Pending GB8506569D0 (en) 1984-10-12 1985-03-14 Seat with dynamic lumbar support

Country Status (5)

Country Link
EP (1) EP0232270B1 (en)
AT (1) ATE68078T1 (en)
DE (1) DE3584374D1 (en)
GB (3) GB8425908D0 (en)
WO (1) WO1986002243A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD463144S1 (en) 2000-09-28 2002-09-24 Formway Furniture Limited Chair
US6637072B2 (en) 2000-09-29 2003-10-28 Formway Furniture Limited Castored base for an office chair

Families Citing this family (41)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3700447A1 (en) * 1987-01-09 1988-07-21 Vogt Bueromoebel SEAT FURNITURE
FR2671702A1 (en) * 1991-01-22 1992-07-24 Lavigne Pierre Variable-geometry chair
JP3027882U (en) * 1996-01-27 1996-08-20 厚生 吉田 Waist support and back support with angle adjustment function on elastic arm
US5871258A (en) * 1997-10-24 1999-02-16 Steelcase Inc. Chair with novel seat construction
GB2340746B (en) * 1998-07-27 2002-02-13 Ashfield Eng Co Wexford Ltd A chair
AU783829B2 (en) 2000-09-28 2005-12-08 Formway Furniture Limited A reclinable chair
DE10156155A1 (en) * 2001-05-21 2002-12-05 Ernst-Ulrich Mathieu Seat cushion for chair has swiveling rear section fitted with adjusting mechanism operated by sensors in supporting section of back rest
US6565153B2 (en) * 2001-07-31 2003-05-20 Johnson Controls Technology Corporation Upper back support for a seat
WO2003068025A2 (en) 2002-02-13 2003-08-21 Herman Miller, Inc. Tilt chair having a flexible back, adjustable armrests and asjustable seat depth, and methods for the use thereof
US7246683B2 (en) * 2004-09-14 2007-07-24 Pringnitz Todd A Tree stand with back support
KR100499792B1 (en) * 2004-10-13 2005-07-07 이규윤 Chair
FI7102U1 (en) * 2005-07-01 2006-06-08 Esko Tapio Puusti Seat
US7794017B2 (en) 2005-08-18 2010-09-14 Itoki Corporation Chair having a unit to move a lumbar support
JP4856911B2 (en) * 2005-08-18 2012-01-18 株式会社イトーキ Chair with backrest
JP4719905B2 (en) 2005-10-27 2011-07-06 コクヨ株式会社 Chair
JP5002835B2 (en) 2005-10-27 2012-08-15 コクヨ株式会社 Member connection structure
JP4945781B2 (en) 2005-11-11 2012-06-06 コクヨ株式会社 Chair
JP4747311B2 (en) 2005-11-11 2011-08-17 コクヨ株式会社 Chair
US7334841B2 (en) * 2005-11-28 2008-02-26 Kuo-Ching Chou Angle adjustment mechanism for lumbar support of chair backrest
JP4857146B2 (en) * 2007-02-27 2012-01-18 株式会社イトーキ Chair with backrest
GB2448688A (en) * 2007-04-23 2008-10-29 Jcm Seating Solutions Ltd A segmented seat back assembly
DE102007026327A1 (en) * 2007-06-06 2008-12-11 Klöber GmbH Flexible backrest for a work chair
US8052217B2 (en) 2008-03-31 2011-11-08 Nada Concepts, Inc. Adjustable ergonomic chair
DE102008036130B4 (en) * 2008-08-01 2014-12-18 Sedus Stoll Ag Tilting backrest
USD653061S1 (en) 2010-04-13 2012-01-31 Herman Miller, Inc. Chair
USD652657S1 (en) 2010-04-13 2012-01-24 Herman Miller, Inc. Chair
USD657166S1 (en) 2010-04-13 2012-04-10 Herman Miller, Inc. Chair
USD637423S1 (en) 2010-04-13 2011-05-10 Herman Miller, Inc. Chair
USD650206S1 (en) 2010-04-13 2011-12-13 Herman Miller, Inc. Chair
US8449037B2 (en) 2010-04-13 2013-05-28 Herman Miller, Inc. Seating structure with a contoured flexible backrest
USD639091S1 (en) 2010-04-13 2011-06-07 Herman Miller, Inc. Backrest
JP5339548B2 (en) * 2011-04-25 2013-11-13 株式会社イトーキ Chair with backrest
KR101330022B1 (en) 2011-11-17 2013-11-18 신호윤 Chair having a waist support and a back support
CN102871387B (en) * 2012-09-19 2016-11-02 杭州立宏科技有限公司 Medicated cushion and back-rest linked adjustable type seat
JP2013128797A (en) * 2013-03-29 2013-07-04 Itoki Corp Chair with backrest
NO342753B1 (en) 2016-11-02 2018-08-06 Img Group As Motorized adjustable back support for recliner
CA3164328A1 (en) * 2019-12-13 2021-06-17 Steelcase Inc. Body support assembly and methods for the 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
US11744375B2 (en) 2021-07-14 2023-09-05 Anthro Form, Llc Seat configuration
WO2023287872A2 (en) * 2021-07-14 2023-01-19 Anthro Form, Llc Seat configuration
KR102399313B1 (en) * 2021-12-29 2022-05-19 주식회사 현대리바트 Chair

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2045120A5 (en) * 1969-06-03 1971-02-26 Dupart Jean
GB1549041A (en) * 1973-06-14 1979-08-01 Sadler K G Chairs

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD463144S1 (en) 2000-09-28 2002-09-24 Formway Furniture Limited Chair
US6637072B2 (en) 2000-09-29 2003-10-28 Formway Furniture Limited Castored base for an office chair

Also Published As

Publication number Publication date
EP0232270B1 (en) 1991-10-09
GB8506569D0 (en) 1985-04-17
DE3584374D1 (en) 1991-11-14
ATE68078T1 (en) 1991-10-15
EP0232270A1 (en) 1987-08-19
GB2165445A (en) 1986-04-16
WO1986002243A1 (en) 1986-04-24
GB8425908D0 (en) 1984-11-21
GB8522857D0 (en) 1985-10-23

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20010916