USB597410I5 - - Google Patents
Info
- Publication number
- USB597410I5 USB597410I5 US59741075A USB597410I5 US B597410 I5 USB597410 I5 US B597410I5 US 59741075 A US59741075 A US 59741075A US B597410 I5 USB597410 I5 US B597410I5
- Authority
- US
- United States
- Prior art keywords
- seat
- torsion bar
- frame
- chair control
- chair
- 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.)
- Pending
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
Landscapes
- Chairs Characterized By Structure (AREA)
Abstract
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US05/597,410 US4000925A (en) | 1975-07-21 | 1975-07-21 | Chair control with front to rear torsion bar |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US05/597,410 US4000925A (en) | 1975-07-21 | 1975-07-21 | Chair control with front to rear torsion bar |
Publications (2)
Publication Number | Publication Date |
---|---|
USB597410I5 true USB597410I5 (en) | 1976-03-30 |
US4000925A US4000925A (en) | 1977-01-04 |
Family
ID=24391381
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US05/597,410 Expired - Lifetime US4000925A (en) | 1975-07-21 | 1975-07-21 | Chair control with front to rear torsion bar |
Country Status (1)
Country | Link |
---|---|
US (1) | US4000925A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2498908A1 (en) * | 1981-02-04 | 1982-08-06 | Kuhn Kurt | OFFICE CHAIR WITH VARIABLE TILT |
EP0135865A2 (en) * | 1983-09-13 | 1985-04-03 | Maridyne, Inc. | Chair tilting mechanism |
CN115107603A (en) * | 2022-06-24 | 2022-09-27 | 重庆长安汽车股份有限公司 | Force limiting mechanism for seat overturning movement in collision, seat and vehicle |
Families Citing this family (7)
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 |
US5050931A (en) * | 1986-04-10 | 1991-09-24 | Steelcase Inc. | Controlled deflection front lip for seating |
US5567012A (en) * | 1986-04-10 | 1996-10-22 | Steelcase, Inc. | Chair control |
US6585320B2 (en) * | 2001-06-15 | 2003-07-01 | Virco Mgmt. Corporation | Tilt control mechanism for a tilt back chair |
US7290836B2 (en) * | 2003-08-28 | 2007-11-06 | A-Dec, Inc. | Patient chair |
US9713381B2 (en) | 2015-06-11 | 2017-07-25 | Davis Furniture Industries, Inc. | Chair |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB422501A (en) * | 1933-09-26 | 1935-01-14 | Brooks J B & Co Ltd | Improvements relating to adjustable back-rests of chairs, seats or stools |
DE1292016B (en) * | 1964-12-23 | 1969-04-03 | Fritzmeier Rupert | Vibration suspension for seats, especially motor vehicle seats |
DE1902670C3 (en) * | 1968-02-01 | 1975-11-27 | Gerdi Kerstholt Geb. Spaeth | Seat with adjustable seat part and adjustable backrest |
DE1957892A1 (en) * | 1968-11-18 | 1970-08-13 | Stewart Warner Corp | Rubber spring arrangement for a chair adjustment |
CA917553A (en) * | 1969-08-27 | 1972-12-26 | Stewart-Warner Corporation | Chair control structure |
-
1975
- 1975-07-21 US US05/597,410 patent/US4000925A/en not_active Expired - Lifetime
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2498908A1 (en) * | 1981-02-04 | 1982-08-06 | Kuhn Kurt | OFFICE CHAIR WITH VARIABLE TILT |
EP0135865A2 (en) * | 1983-09-13 | 1985-04-03 | Maridyne, Inc. | Chair tilting mechanism |
EP0135865A3 (en) * | 1983-09-13 | 1985-12-27 | Maridyne, Inc. | Chair tilting mechanism |
CN115107603A (en) * | 2022-06-24 | 2022-09-27 | 重庆长安汽车股份有限公司 | Force limiting mechanism for seat overturning movement in collision, seat and vehicle |
CN115107603B (en) * | 2022-06-24 | 2024-03-22 | 重庆长安汽车股份有限公司 | Force limiting mechanism for overturning movement of seat in collision, seat and vehicle |
Also Published As
Publication number | Publication date |
---|---|
US4000925A (en) | 1977-01-04 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: BANK ONE, LEXINGTON, NA, 200 WEST VINE STREET LEXI Free format text: SECURITY INTEREST;ASSIGNOR:PIONEER MANUFACTURING, INC.,;REEL/FRAME:005077/0553 Owner name: PIONEER MANUFACTURING, INC., LEMONS MILL PIKE, GEO Free format text: ASSIGNS THE ENTIRE INTEREST EFFECTIVE AS MAY 9, 1984;ASSIGNOR:HOOVER UNIVERSAL, INC.;REEL/FRAME:005113/0044 Effective date: 19670124 |
|
AS | Assignment |
Owner name: HOOVER UNIVERSAL INC., A CORP. OF MI Free format text: CHANGE OF NAME;ASSIGNOR:HOOVER BALL & BEARING COMPANY;REEL/FRAME:005224/0442 Effective date: 19780117 Owner name: HOOVER BALL AND BEARING COMPANY, MICHIGAN Free format text: MERGER;ASSIGNOR:HOOVER BALL AND BEARING COMPANY;REEL/FRAME:005241/0077 Effective date: 19770711 |