Seat belt pretensioner
US7452003B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 28, 2006 |
| Grant date | Nov 18, 2008 |
| Priority date | — |
| Expiry date | Apr 14, 2027 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60R2022/263
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A pretensioning apparatus for seat belt webbing is located in the vicinity of a belt anchor end of a three-point vehicle safety restraint seat belt. The pretensioning apparatus has a fixed member in the form of a tubular member that may be anchored to a vehicle seat at the belt anchor side of the vehicle. A movable member in the form of a piston is connected to the webbing in the region of the belt anchor end. A means is provided for moving the movable member relative to the fixed member in a generally horizontal direction, to move the seat belt webbing in a pretensioning direction in response to a signal from a crash sensor. A webbing guide is fixed to the seat to provide an effective anchorage point spaced from the belt anchor end of the webbing under pretensioning conditions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.