Self-locking seat belt retractor
US8955784B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 14, 2010 |
| Grant date | Feb 17, 2015 |
| Priority date | — |
| Expiry date | Oct 30, 2031 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60R2022/287
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A self-locking seat belt retractor has the following components: a locking device (9) which can be actuated in a vehicle-sensitive and/or in a belt webbing-sensitive manner, a belt shaft (1), and a two-stage load limiting device (13) located within the force flow between the locking device (9) and the belt shaft (1). The load limiting device (13) includes a first, high-load limiting element (3) and a second, low-load limiting element (2). The load limitation level can be switched from high to low during load limitation. A third load limiting element (14) parallel to the second load limiting element (2) between the locking device (9) and the belt shaft (1) is formed by at least two structural elements (10, 11, 12, 20a, 20b, 21a-21g, 22a-22g), at least one of which is sheared off during the load limitation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.