GB768473A - Improvements in or relating to adjustable back-rests for seats - Google Patents

Improvements in or relating to adjustable back-rests for seats

Info

Publication number
GB768473A
GB768473A GB5463/55A GB546355A GB768473A GB 768473 A GB768473 A GB 768473A GB 5463/55 A GB5463/55 A GB 5463/55A GB 546355 A GB546355 A GB 546355A GB 768473 A GB768473 A GB 768473A
Authority
GB
United Kingdom
Prior art keywords
rest
seats
rests
relating
adjustable 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
GB5463/55A
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
Application filed by Individual filed Critical Individual
Publication of GB768473A publication Critical patent/GB768473A/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
    • A47C7/445—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
    • A47C7/441—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)
  • Gripping Jigs, Holding Jigs, And Positioning Jigs (AREA)
  • Jigs For Machine Tools (AREA)

Abstract

768,473. Back-rest adjustments. EINAR RUSTAD. Feb. 23, 1955 [Feb. 24, 1954], No. 5463/55. Class 52 (2). A tubular support 4 for a back-rest is slidably mounted in a clamping sleeve 5 pivoted on a bolt 2 between side cheeks la beneath a stool seat 1. A clamping bolt 6 carried by lugs 5d on the sleeve moves in arcuate slots 3 in the side cheeks and a spring 11 biases the back-rest toward the vertical position when the clamp is released.
GB5463/55A 1954-02-24 1955-02-23 Improvements in or relating to adjustable back-rests for seats Expired GB768473A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DK62354AA DK83914C (en) 1954-02-24 1954-02-24 Office chair.

Publications (1)

Publication Number Publication Date
GB768473A true GB768473A (en) 1957-02-20

Family

ID=8095670

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5463/55A Expired GB768473A (en) 1954-02-24 1955-02-23 Improvements in or relating to adjustable back-rests for seats

Country Status (5)

Country Link
BE (1) BE538729A (en)
DE (1) DE1083998B (en)
DK (1) DK83914C (en)
FR (1) FR1166134A (en)
GB (1) GB768473A (en)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB383407A (en) * 1931-11-10 1932-11-17 Tan Sad Chair Co 1931 Ltd An improved adjustable backrest or back support for a seat
US2286468A (en) * 1939-05-01 1942-06-16 Roy A Cramer Posture chair
FR1026647A (en) * 1949-10-28 1953-04-29 Einar Rustad Improvements to chairs used in offices or industry

Also Published As

Publication number Publication date
FR1166134A (en) 1958-11-03
DE1083998B (en) 1960-06-23
DK83914C (en) 1957-11-18
BE538729A (en) 1955-06-30

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