GB1161464A - Torsion Bar Chair Control - Google Patents

Torsion Bar Chair Control

Info

Publication number
GB1161464A
GB1161464A GB59130/67A GB5913067A GB1161464A GB 1161464 A GB1161464 A GB 1161464A GB 59130/67 A GB59130/67 A GB 59130/67A GB 5913067 A GB5913067 A GB 5913067A GB 1161464 A GB1161464 A GB 1161464A
Authority
GB
United Kingdom
Prior art keywords
bar
seat
torsion bar
dec
plates
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
GB59130/67A
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.)
Stewart Warner Corp
Original Assignee
Stewart Warner 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 Stewart Warner Corp filed Critical Stewart Warner Corp
Publication of GB1161464A publication Critical patent/GB1161464A/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
    • A47C3/00—Chairs characterised by structural features; Chairs or stools with rotatable or vertically-adjustable seats
    • A47C3/02—Rocking chairs
    • A47C3/025—Rocking chairs with seat, or seat and back-rest unit elastically or pivotally mounted in a rigid base frame
    • A47C3/026—Rocking chairs with seat, or seat and back-rest unit elastically or pivotally mounted in a rigid base frame with central column, e.g. rocking office chairs; Tilting 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
    • A47C1/022—Reclining or easy chairs having independently-adjustable supporting parts
    • A47C1/024—Reclining or easy chairs having independently-adjustable supporting parts the parts, being the back-rest, or the back-rest and seat unit, having adjustable and lockable inclination
    • A47C1/027—Reclining or easy chairs having independently-adjustable supporting parts the parts, being the back-rest, or the back-rest and seat unit, having adjustable and lockable inclination by means of clamps or friction locking members
    • 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
    • A47C7/441—Support for the head or the back for the back with elastically-mounted back-rest or backrest-seat unit in the base frame with adjustable elasticity
    • 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
    • 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
    • A47C7/4454—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 of torsion type

Landscapes

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

Abstract

1,161,464. Seats. STEWART-WARNER CORP. 29 Dec., 1967 [30 Dec., 1966], No. 59130/67. Headings A4J and A4U. In a tilting chair, a back-rest rotates about the axis of a torsion bar 38, which opposes its rearward pivoting motion, while a seat participates in this motion to a reduced extent, by turning about its front pivotal connections 90, by which it is mounted on a stationary support body 22. The ends of bar 38 are secured in extensions 32, 34 of the support body, which has integral side walls 24, 26. The backrest, which is adjustably clamped in angularly adjustable shoe 64, turns plates 44 about bearings 42, carried on bar 38 and applies a moment to the bar 38, by means of screw 50 engaging arm 48, fast with the bar. The rotation of plates 44 is transmitted to the rear of the seat by toggle linkage 56 connected to seat fastenings 84. In another form, pivots 90 are replaced by a torsion bar (100, Figs. 8 and 9, not shown).
GB59130/67A 1966-12-30 1967-12-29 Torsion Bar Chair Control Expired GB1161464A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US606222A US3402964A (en) 1966-12-30 1966-12-30 Torsion bar chair control

Publications (1)

Publication Number Publication Date
GB1161464A true GB1161464A (en) 1969-08-13

Family

ID=24427085

Family Applications (1)

Application Number Title Priority Date Filing Date
GB59130/67A Expired GB1161464A (en) 1966-12-30 1967-12-29 Torsion Bar Chair Control

Country Status (2)

Country Link
US (1) US3402964A (en)
GB (1) GB1161464A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0069410A1 (en) * 1981-06-23 1983-01-12 Gispen + Staalmeubel B.V. Chair
GB2142231A (en) * 1983-06-28 1985-01-16 Parker & Co A A forward tilting chair
US4938532A (en) * 1988-01-12 1990-07-03 Burgess Gerald N Seating apparatus

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3552706A (en) * 1968-06-07 1971-01-05 Stewart Warner Ltd Chair control
US4101166A (en) * 1977-07-07 1978-07-18 Gf Business Equipment, Inc. Chair control mechanism
US4479679A (en) * 1981-06-08 1984-10-30 Steelcase Inc. Body weight chair control
US4478454A (en) * 1981-06-08 1984-10-23 Steelcase Inc. Weight-actuated chair control
IT206947Z2 (en) * 1986-06-12 1987-10-26 Pro Cord Srl CHAIR WITH ARTICULATED BACKREST
US5106157A (en) * 1989-03-01 1992-04-21 Herman Miller, Inc. Chair height and tilt adjustment mechanisms
DE4312113C1 (en) * 1993-04-14 1994-10-27 Mauser Waldeck Ag Seating
US5577807A (en) * 1994-06-09 1996-11-26 Steelcase Inc. Adjustable chair actuator
US5810439A (en) * 1996-05-09 1998-09-22 Haworth, Inc. Forward-rearward tilt control for chair
IT1308075B1 (en) * 1999-06-04 2001-11-29 Pro Cord Srl CHAIR WITH OSCILLATING SEAT
US7841664B2 (en) 2008-06-04 2010-11-30 Steelcase Inc. Chair with control system
US20130001994A1 (en) * 2011-06-30 2013-01-03 Yao-Chuan Wu Chair with a Resilient Back
CN104305758A (en) * 2014-11-04 2015-01-28 浙江国华家具有限公司 Bar chair stool surface and bar chair comprising same

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2110874A (en) * 1935-10-29 1938-03-15 Bassick Co Posture chair
US2286468A (en) * 1939-05-01 1942-06-16 Roy A Cramer Posture chair
US2329327A (en) * 1940-05-31 1943-09-14 Bolens Products Company Posture chair
US2447601A (en) * 1946-02-19 1948-08-24 Sikes Company Tilting chair seat and back rest
US3136580A (en) * 1962-05-22 1964-06-09 Bassick Co Chair control
US3224807A (en) * 1963-07-19 1965-12-21 Steelcase Inc Back support adjustment for torsion chair
US3250567A (en) * 1964-02-21 1966-05-10 Stewart Warner Corp Chair control
US3240528A (en) * 1964-03-11 1966-03-15 Stewart Warner Corp Control for executive posture chair

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0069410A1 (en) * 1981-06-23 1983-01-12 Gispen + Staalmeubel B.V. Chair
US4521053A (en) * 1981-06-23 1985-06-04 Gispen+Staalmeubel B.V. Chair
GB2142231A (en) * 1983-06-28 1985-01-16 Parker & Co A A forward tilting chair
US4938532A (en) * 1988-01-12 1990-07-03 Burgess Gerald N Seating apparatus

Also Published As

Publication number Publication date
US3402964A (en) 1968-09-24

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees