Seat belt pretensioner
US7137650B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 21, 2005 |
| Grant date | Nov 21, 2006 |
| Priority date | — |
| Expiry date | Jun 21, 2025 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60R22/22
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A pretensioner for a three point seat belt has a cylinder adapted to be attached to a structural member of the vehicle and a piston disposed within the cylinder. The piston can move translationally relative to the cylinder in a pretensioning direction. A flexible member is arranged in a curved profile with a seat belt webbing being attached to the flexible member. The flexible member has a first end that can be pulled by the piston and a second end releasably connected to an exterior of the cylinder such that when the piston moves translationally relative to the cylinder the second end of the flexible member moves translationally relative to the cylinder along the exterior of the cylinder.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.