CA963373A - Torsion rod chair iron - Google Patents

Torsion rod chair iron

Info

Publication number
CA963373A
CA963373A CA097,399A CA97399A CA963373A CA 963373 A CA963373 A CA 963373A CA 97399 A CA97399 A CA 97399A CA 963373 A CA963373 A CA 963373A
Authority
CA
Canada
Prior art keywords
torsion rod
chair iron
rod chair
iron
torsion
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
CA097,399A
Other versions
CA97399S (en
Inventor
Donald E. Mcnally
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.)
Steelcase Inc
Original Assignee
Steelcase Inc
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 Steelcase Inc filed Critical Steelcase Inc
Application granted granted Critical
Publication of CA963373A publication Critical patent/CA963373A/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
    • 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
CA097,399A 1969-12-12 1970-11-04 Torsion rod chair iron Expired CA963373A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US88441369A 1969-12-12 1969-12-12

Publications (1)

Publication Number Publication Date
CA963373A true CA963373A (en) 1975-02-25

Family

ID=25384573

Family Applications (1)

Application Number Title Priority Date Filing Date
CA097,399A Expired CA963373A (en) 1969-12-12 1970-11-04 Torsion rod chair iron

Country Status (2)

Country Link
US (1) US3788586A (en)
CA (1) CA963373A (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4438978A (en) * 1981-11-18 1984-03-27 Tor Arild Tilt back mechanism for a chair
DE3335148A1 (en) * 1983-09-28 1985-04-11 Wilkhahn Wilkening + Hahne GmbH + Co, 3252 Bad Münder DEVICE FOR SPRING SWIVELING OF A COMPONENT
GB8800571D0 (en) * 1988-01-12 1988-02-10 Burgess G N Seating apparatus
US4884777A (en) * 1988-07-29 1989-12-05 Tachi-S Co., Ltd. Seat suspension device
US6199952B1 (en) 1999-09-14 2001-03-13 Hon Technology Inc. Chair control gas spring retainer for chair height reduction
US6471293B2 (en) 2000-11-09 2002-10-29 Michigan Tube Swagers & Fabricators, Inc. Stackable chair with flexible back support
US6820934B2 (en) * 2000-11-09 2004-11-23 Michigan Tube Swagers & Fabricators, Inc. Chair having flexible back support
US6805412B2 (en) * 2001-08-30 2004-10-19 Burgess Furniture Ltd. Stackable chair with flexible back
US11589678B2 (en) 2019-01-17 2023-02-28 Hni Technologies Inc. Chairs including flexible frames

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2718257A (en) * 1953-12-01 1955-09-20 Lie Finn Tilting chair
US2971569A (en) * 1956-08-16 1961-02-14 Bassick Co Tiltable office chair
US3027191A (en) * 1960-04-11 1962-03-27 Lie Finn Chair construction
CA737269A (en) * 1961-08-17 1966-06-28 Lie Finn Torsion bar chair iron
US3185429A (en) * 1963-05-15 1965-05-25 Seng Co Tilting chair mechanism
US3240528A (en) * 1964-03-11 1966-03-15 Stewart Warner Corp Control for executive posture chair
SE319875B (en) * 1967-02-03 1970-01-26 Blomborgs Mekaniska Ab
CA917553A (en) * 1969-08-27 1972-12-26 Stewart-Warner Corporation Chair control structure

Also Published As

Publication number Publication date
US3788586A (en) 1974-01-29

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