Seat back structure of an automotive seat
US5044693A · kind A · utility
65Cited by
6References
1Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 31, 1989 |
| Grant date | Sep 3, 1991 |
| Priority date | — |
| Expiry date | Oct 31, 2009 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60N2/66
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A seat back structure of an automotive seat comprising a back support plate, plural springs, and torsion bar. The back support plate is supported in a seat back frame by the springs and torsion bar in a more positively resilient way. The provision of the torsion bar avoids the sudden backward movement of the back support plate which has been found in a conventional seat back structure wherein the support plate is only supported by springs.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.