Pretensioner
US6131951A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 30, 1999 |
| Grant date | Oct 17, 2000 |
| Priority date | — |
| Expiry date | Mar 30, 2019 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60R22/1952
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A vehicle safety apparatus has a 3-point seatbelt, with a buckle head, and a crash sensor. A pretensioner is connected at the buckle head of the seatbelt for pulling in a length of seatbelt webbing in response to the crash sensor detecting a crash. The pretensioner has a force reservoir and a piston located within and for movement along a pretensioner cylinder under the force of gas from a gas generator. The piston is connected by a cable to the buckle head of the seatbelt. A cable bracket has an inner and outer guide, and wherein the pretensioner cylinder is attached to the inner guide and the buckle mounting is connected to the outer guide.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.