Four-point seat belt having central load limiter
US6682009B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 27, 2002 |
| Grant date | Jan 27, 2004 |
| Priority date | — |
| Expiry date | Aug 27, 2022 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60R2022/3424
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
An apparatus (10) for helping to protect a vehicle occupant (12) includes first and second lengths of belt webbing (30, 32) for extending over the occupant. First and second spools (62, 80) are supported for rotation in a belt retraction direction (68) and an opposite belt withdrawal direction (70). The apparatus (10) includes a mechanism (90) for blocking rotation of the spools (62, 80) in the belt withdrawal direction (68) until a predetermined force is applied to the spools, and for permitting rotation of the spools in the belt withdrawal direction when a force above the predetermined force is applied to the spools. The mechanism (90) drivingly interconnects the spools and permits rotation of one of the spools (62, 80) in the belt withdrawal direction (70) after blocking rotation in the belt withdrawal direction without causing rotation of the other spool in the belt withdrawal direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.