Stiffening frame for an integral tether and tearstop in an air bag door
US7156415B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 6, 2004 |
| Grant date | Jan 2, 2007 |
| Priority date | — |
| Expiry date | Feb 7, 2025 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60R2021/21537
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
An air bag door construction for air bag deployment comprises a trim panel and air bag door of unitary construction, at least a portion of the door defined by an area of reduced cross-section outlining at least a portion of the periphery thereof. One or more tethers are formed in the panel, outlined by an area of reduced cross-section, preferably in a dovetail shape which does not direct the propagation of tearing into the tether. A tear stop may be formed at the ends of the tether. The improvement comprises a stiffening frame that is attached to the backside and/or the topside of the panel just outboard of the air bag door periphery but not located across the tethers to improve deployment performance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.