Vehicle seat backs
US5669661A · kind A · utility
21Cited by
6References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 18, 1995 |
| Grant date | Sep 23, 1997 |
| Priority date | — |
| Expiry date | Dec 18, 2015 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60R21/026
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
The vehicle seat back includes two deformable elements both extending across the back (2) between two lateral uprights (3) defining the sides of the back, the elements comprising a first element (7) suitable for dissipating energy by deforming plastically in progressive manner, and a second element (8) suitable for stopping deformation of the first, the second element being disposed in such a manner that when a strong longitudinal thrust is applied to its middle portion, it begins by lengthening while offering practically no resistance until it reaches a given length, after which it becomes inextensible.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.