Automobile vehicle seat with hinged back featuring means for blocking the seat back in the event of front crash
US7237839B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 9, 2004 |
| Grant date | Jul 3, 2007 |
| Priority date | — |
| Expiry date | Sep 24, 2025 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60N2/433
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
The automobile vehicle seat features a seat back hinged on the seat pan and device for blocking the seat back with respect to the seat pan in the event of forward impact. The automobile vehicle seat features a height adjustment mechanism. The device for blocking the seat back includes a cam pivot-mounted on the shaft, and a weight joined to the cam, with the cam arranged so upon impact the cam, pivots by the inertia of the weight and the cam engages with a lower edge of the seat back frame, such that pivoting of the seat back is prevented by bracing of the cam against the lower edge and such that this produces a high radial force on the height adjustment shaft, thereby limiting the possibilities of rotation of the height adjustment shaft.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.