Scissor jack lumbar support
US5553919A · kind A · utility
40Cited by
24References
16Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 11, 1994 |
| Grant date | Sep 10, 1996 |
| Priority date | — |
| Expiry date | Oct 11, 2014 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47C7/462
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A lumbar support for a seat back having a support platform that extends and retracts by operation of lever arms. The present invention generally includes a support frame and a rigid support platform suspended within a seat back. The support platform is mounted to the support frame by lever arms preferably arranged in a scissors jack configuration. A control mechanism having a Bowden cable and a rotary control is provided to selectively pivot the levers and cause the support platform to extend and retract with respect to the support frame.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.