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CA869338A - Chair control with torsion spring with tilting seat and chair back - Google Patents

Chair control with torsion spring with tilting seat and chair back

Info

Publication number
CA869338A
CA869338A CA869338A CA869338DA CA869338A CA 869338 A CA869338 A CA 869338A CA 869338 A CA869338 A CA 869338A CA 869338D A CA869338D A CA 869338DA CA 869338 A CA869338 A CA 869338A
Authority
CA
Canada
Prior art keywords
chair
torsion spring
tilting seat
control
chair 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
Application number
CA869338A
Inventor
T. Doerner Joseph
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.)
Doerner Products Co Ltd
Original Assignee
Doerner Products Co Ltd
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 Doerner Products Co Ltd filed Critical Doerner Products Co Ltd
Application granted granted Critical
Publication of CA869338A publication Critical patent/CA869338A/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—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
    • A47C7/443—Supports for the head or the back for the back with elastically-mounted back-rest or backrest-seat unit in the base frame with coil 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
    • A47C7/44—Supports for the head or the back for the back with elastically-mounted back-rest or backrest-seat unit in the base frame
    • A47C7/443—Supports for the head or the back for the back with elastically-mounted back-rest or backrest-seat unit in the base frame with coil springs
    • A47C7/444—Supports for the head or the back for the back with elastically-mounted back-rest or backrest-seat unit in the base frame with coil springs of torsion type
    • 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
    • A47C7/44—Supports for the head or the back for the back with elastically-mounted back-rest or backrest-seat unit in the base frame
    • A47C7/441—Supports 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

  • Health & Medical Sciences (AREA)
  • Dentistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Chairs Characterized By Structure (AREA)
CA869338A 1969-09-23 1969-09-23 Chair control with torsion spring with tilting seat and chair back Expired CA869338A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA62732 1969-09-23

Publications (1)

Publication Number Publication Date
CA869338A true CA869338A (en) 1971-04-27

Family

ID=4085703

Family Applications (1)

Application Number Title Priority Date Filing Date
CA869338A Expired CA869338A (en) 1969-09-23 1969-09-23 Chair control with torsion spring with tilting seat and chair back

Country Status (2)

Country Link
US (1) US3603640A (en)
CA (1) CA869338A (en)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3966252A (en) * 1974-05-28 1976-06-29 Westinghouse Electric Corporation Chair structure and tilt mechanism therefor
US4494795A (en) * 1982-05-06 1985-01-22 Steelcase Inc. Variable back adjuster for chairs
CH662257A5 (en) * 1983-07-20 1987-09-30 Syntech Sa WORK CHAIR.
GB2161443B (en) * 1984-07-11 1987-09-30 British Nuclear Fuels Plc Pneumatic conveyor system
ATE53473T1 (en) * 1984-10-24 1990-06-15 Dauphin F W Buerositzmoebel CHAIR, ESPECIALLY OFFICE CHAIR.
IT206947Z2 (en) * 1986-06-12 1987-10-26 Pro Cord Srl CHAIR WITH ARTICULATED BACKREST
US4810032A (en) * 1988-05-10 1989-03-07 John Gibson Stabilized spring holder
DE69334123T2 (en) * 1992-06-15 2007-11-15 Herman Miller, Inc., Zeeland Supporting structure for a chair
US5782536A (en) * 1995-02-17 1998-07-21 Steelcase Inc. Modular chair construction and method of assembly
US5823626A (en) * 1996-12-30 1998-10-20 Haas; Peter J. Mechanism for reclining chairs
ITUD20030042A1 (en) * 2003-02-25 2004-08-26 Erreti Snc Di Rinaldo Tonin & C CUSHIONING DEVICE TO CUSHION A BACK OF A CHAIR, AN ARMCHAIR, AN OFFICE ARMCHAIR OR SIMILAR.
US6974188B2 (en) * 2003-08-13 2005-12-13 Cosco Management, Inc. Chair with pivotable chair back
US7802847B2 (en) * 2008-12-16 2010-09-28 Kuo-Ching Chou Angle-adjusting structure for backrest of chair
TWM421757U (en) * 2011-09-20 2012-02-01 Wen-Shan Ke Guiding mechanism of seat cushion of chair
US9414683B2 (en) * 2014-02-17 2016-08-16 Daniel Paul Chairs, Llc Flexible back chair with improved spring can assembly
US9295332B2 (en) * 2014-02-17 2016-03-29 Daniel Paul Chairs, Llc Flexible back chair with spring can assembly
US11751691B2 (en) * 2020-05-28 2023-09-12 Anji Deka Office System Co., Ltd. Seat connecting device with adjustable backrest

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2498106A (en) * 1945-01-05 1950-02-21 Seng Co Chair iron
US3339973A (en) * 1966-01-05 1967-09-05 Doerner Products Co Ltd Torsion spring chair control

Also Published As

Publication number Publication date
US3603640A (en) 1971-09-07

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