GB476840A - Improvements in chairs - Google Patents

Improvements in chairs

Info

Publication number
GB476840A
GB476840A GB31579/36A GB3157936A GB476840A GB 476840 A GB476840 A GB 476840A GB 31579/36 A GB31579/36 A GB 31579/36A GB 3157936 A GB3157936 A GB 3157936A GB 476840 A GB476840 A GB 476840A
Authority
GB
United Kingdom
Prior art keywords
slots
bolt
frame
nut
engaging
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
GB31579/36A
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.)
Bassick Co
Original Assignee
Bassick Co
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 Bassick Co filed Critical Bassick Co
Publication of GB476840A publication Critical patent/GB476840A/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
    • A47C7/443—Support 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
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T403/00—Joints and connections
    • Y10T403/32—Articulated members
    • Y10T403/32254—Lockable at fixed position
    • Y10T403/32262—At selected angle
    • Y10T403/32319—At selected angle including pivot stud
    • Y10T403/32377—Radially spaced arcuate slot engages fastener

Landscapes

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

Abstract

476,840. Adjustable seats. BASSICK CO. Nov. 18, 1936, No. 31579. Convention date, July 30. [Class 52 (ii)] Adjusting means for a chair back 43 pivoted to a supporting frame 16 at 38 comprise crossing slots 48, 50 on the frame 16 and chair back respectively, and a clamping bolt 51 passing through the intersection of the slots so that pivoting of the back causes a scissors action of the slots on the bolt, the angle between the slots remaining approximately constant at a value such that the bolt when slackened may be moved in the slots under the scissors action by pressure on the chair back at any setting in its range of angular adjustment. The slots 48 on the frame 16 are curved and the slots 50 are straight and are provided in the sides 36 of a yoke member 37 on which the back 43 is vertically adjustable by a bolt 44 taking in a slot 45. The bolt 51 has a head 52 engaging one of the sides 36 and a squared portion 53 engaging one of the slots 50 to prevent rotation. A spanning sleeve 54 is threaded on the bolt between the sides of the frame member 16 and a further sleeve 55 is acted on by a nut 56 to clamp the parts together. The seat 10 is fixedly secured by spider arms 11 to side portions 13 of a bearing post 12, and the tiltableframe 16 carrying the back 43 is pivoted to the post 12 at 18 and provided with stops 20, 21 coacting with rivet heads 14 to limit the tilting movement. A spring 31 bears at one end upon a forwardly projecting part 29 of the post 12 and at the other end upon a nut 35 on a bolt 27 having knife edges 25 engaging V-shaped pockets 24 in a bent-up portion at the upper part 15 of the frame 16. The spring normally maintains the back supporting member in the non-tilted position and its tension may be adjusted by the nut 35.
GB31579/36A 1936-07-30 1936-11-18 Improvements in chairs Expired GB476840A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US93351A US2093319A (en) 1936-07-30 1936-07-30 Posture chair

Publications (1)

Publication Number Publication Date
GB476840A true GB476840A (en) 1937-12-16

Family

ID=22238445

Family Applications (1)

Application Number Title Priority Date Filing Date
GB31579/36A Expired GB476840A (en) 1936-07-30 1936-11-18 Improvements in chairs

Country Status (3)

Country Link
US (1) US2093319A (en)
FR (1) FR813568A (en)
GB (1) GB476840A (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2563951A (en) * 1947-04-05 1951-08-14 Burroughs Adding Machine Co Tilting back chair
US2756807A (en) * 1955-01-06 1956-07-31 Gen Fireproofing Co Adjusting means for adjustable chair irons
US2901027A (en) * 1956-12-21 1959-08-25 Michael F Murray Adjustable chair
US3049329A (en) * 1959-07-01 1962-08-14 Chrysler Corp Seat adjustment
US3034828A (en) * 1960-09-06 1962-05-15 Kurihara Sadasuke Chair
US3278228A (en) * 1966-01-03 1966-10-11 Doerner Products Co Ltd Chair control pressure plate having replaceable thrust bearings
US3356414A (en) * 1966-03-07 1967-12-05 Doerner Products Co Ltd Chair control
US3709535A (en) * 1971-01-18 1973-01-09 H Rothermel Hinge iron for posture chair
CA1067390A (en) * 1977-03-31 1979-12-04 Frank Doerner Chair control for a tiltable stenographer's chair
DE8326792U1 (en) * 1983-09-17 1984-01-05 Fromme, Heinrich, 4815 Schloß Holte-Stukenbrock CHAIR, ESPECIALLY SWIVEL CHAIR

Also Published As

Publication number Publication date
FR813568A (en) 1937-06-03
US2093319A (en) 1937-09-14

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