FR1355495A - Chair back tilt adjustment mechanism - Google Patents

Chair back tilt adjustment mechanism

Info

Publication number
FR1355495A
FR1355495A FR935367A FR935367A FR1355495A FR 1355495 A FR1355495 A FR 1355495A FR 935367 A FR935367 A FR 935367A FR 935367 A FR935367 A FR 935367A FR 1355495 A FR1355495 A FR 1355495A
Authority
FR
France
Prior art keywords
supports
torque
seat
chair back
square
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
FR935367A
Other languages
French (fr)
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
Application granted granted Critical
Publication of FR1355495A publication Critical patent/FR1355495A/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
    • 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

Landscapes

  • Chairs Characterized By Structure (AREA)
  • Pivots And Pivotal Connections (AREA)
  • Chair Legs, Seat Parts, And Backrests (AREA)

Abstract

970,464. Resiliently mounted and adjustable seats. STEWART-WARNER CORPORATION. May 21, 1963 [May 22,1962], No. 20249/63. Headings A4J and A4U. A chair control for supporting a chair back tiltably relative to its seat, comprises relatively pivotally mounted separate back and seat supports 12, 10, respectively, and a torsion bar 18 fixed at or near its ends in non-rotatable relationship with one of the supports and fixed intermediate its ends in a non- rotatable relationship with the other of the supports, thereby providing resilient restraint against tilting between the two supports. The seat support 10, which is carried by a post 13, includes a channel shaped cross member 26, spider arms 42 and plates 44. The back support 10 comprising a body 52 and hinge 68 extends through an opening in the cross member 26 so that the torsion bar 18, which is of square cross section, can be secured in square openings in the plates 44, pivotally supported in bushings 56, on body 52, and engaged in a square opening in a torque lever 22. The initial torque on the bar 18 is adjusted by a wheel 64 having a threaded stud engaging in body 52 and bearing against the end of the lever 22, subsequent rearward force on the chair back tilting the body member 52 to increase the torque and, consequently, the restoring force. The back, which is connected to arm 17, is vertically adjustable by sliding a clamping bolt in a slot 81 in hinge member 68 and is angularly adjustable, by pivoting the member 68 about a rivet 70 under control of a locking bolt 73 movable in slots 78 in body 52.
FR935367A 1962-05-22 1963-05-20 Chair back tilt adjustment mechanism Expired FR1355495A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US196770A US3136580A (en) 1962-05-22 1962-05-22 Chair control

Publications (1)

Publication Number Publication Date
FR1355495A true FR1355495A (en) 1964-03-13

Family

ID=22726749

Family Applications (1)

Application Number Title Priority Date Filing Date
FR935367A Expired FR1355495A (en) 1962-05-22 1963-05-20 Chair back tilt adjustment mechanism

Country Status (9)

Country Link
US (1) US3136580A (en)
BE (1) BE632584A (en)
CH (1) CH397986A (en)
DE (2) DE1270244B (en)
FR (1) FR1355495A (en)
GB (1) GB970464A (en)
NL (1) NL292763A (en)
NO (1) NO119698B (en)
SE (1) SE301860B (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3224807A (en) * 1963-07-19 1965-12-21 Steelcase Inc Back support adjustment for torsion chair
US3240528A (en) * 1964-03-11 1966-03-15 Stewart Warner Corp Control for executive posture chair
US3290091A (en) * 1966-01-14 1966-12-06 Goodman Robert Chairs with tiltable portions
US3356414A (en) * 1966-03-07 1967-12-05 Doerner Products Co Ltd Chair control
US3402964A (en) * 1966-12-30 1968-09-24 Stewart Warner Corp Torsion bar chair control
US3386770A (en) * 1967-09-18 1968-06-04 Stewart Warner Corp Double action chair control
DE3616475C1 (en) * 1986-05-15 1987-06-11 Kusch Co Sitzmoebel Height-adjustable swivel chair equipped with gas pressure spring, in particular office chair or armchair
GB8800571D0 (en) * 1988-01-12 1988-02-10 Burgess G N Seating apparatus
GB2266232B (en) * 1992-04-23 1995-11-15 Ashfield Eng Co Wexford Ltd A support device for a chair
IT1270377B (en) * 1993-05-27 1997-05-05 Pro Cord Srl CHAIR WITH OSCILLATING BACKREST
US6065803A (en) * 1999-05-05 2000-05-23 L&P Property Management Company Seat back tilt control apparatus
US20130001994A1 (en) * 2011-06-30 2013-01-03 Yao-Chuan Wu Chair with a Resilient Back

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB698131A (en) * 1951-04-26 1953-10-07 Tan Sad Chair Co 1931 Ltd Improvements connected with resilient couplings for association with rockable chair seats and/or backs
DE899853C (en) * 1951-12-19 1953-12-17 Albert Spieth Spring-loaded seating
US2778409A (en) * 1955-04-28 1957-01-22 Manton Ahlberg H Control for posture chairs
GB815779A (en) * 1957-03-21 1959-07-01 Finn Lie Tilting mechanism for seat furniture
US3027191A (en) * 1960-04-11 1962-03-27 Lie Finn Chair construction

Also Published As

Publication number Publication date
US3136580A (en) 1964-06-09
CH397986A (en) 1965-08-31
BE632584A (en) 1963-10-21
DE6602305U (en) 1969-05-14
NL292763A (en) 1965-07-26
DE1270244B (en) 1968-06-12
GB970464A (en) 1964-09-23
NO119698B (en) 1970-06-22
SE301860B (en) 1968-06-24

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