Seat belt retractor and seat belt apparatus employing seat belt retractor
US9428146B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 9, 2013 |
| Grant date | Aug 30, 2016 |
| Priority date | — |
| Expiry date | Oct 9, 2033 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60R2022/3419
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
[Object]To cancel both a function of a vehicle sensor and a function of a webbing sensor at a predetermined condition while having a simple structure and a fewer number of parts.[Solution]When fully retracting a seat belt 4, a cam follower 22b abuts against a first cam portion 20a; accordingly, an actuator holding portion 23b urges an actuator 13b in a non-operable position and a function of a vehicle sensor 13 is canceled. When a large load is applied to the actuator holding portion 23b while in the above canceled state, the load is supported by the first cam portion 20a; accordingly, first and second levers 22 and 23 do not pivot and cancellation of the function of the vehicle sensor 13 is prevented from being canceled. Furthermore, when a lock claw 22c is separated from a ratchet tooth 17b, a ring gear 17 becomes rotatable and a function of a webbing sensor 12 is canceled.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.