FR1355495A - Chair back tilt adjustment mechanism - Google Patents
Chair back tilt adjustment mechanismInfo
- 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
Links
- 241000239290 Araneae Species 0.000 abstract 1
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.
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)
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)
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 |
-
1962
- 1962-05-22 US US196770A patent/US3136580A/en not_active Expired - Lifetime
-
1963
- 1963-05-15 DE DEP1270A patent/DE1270244B/en active Pending
- 1963-05-15 NL NL292763D patent/NL292763A/xx unknown
- 1963-05-15 DE DE6602305U patent/DE6602305U/en not_active Expired
- 1963-05-16 NO NO148700A patent/NO119698B/no unknown
- 1963-05-20 BE BE632584D patent/BE632584A/fr unknown
- 1963-05-20 FR FR935367A patent/FR1355495A/en not_active Expired
- 1963-05-21 GB GB20249/63A patent/GB970464A/en not_active Expired
- 1963-05-21 SE SE5643/63A patent/SE301860B/xx unknown
- 1963-05-21 CH CH634263A patent/CH397986A/en unknown
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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