Vehicle seat belt system
US4730844A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | May 12, 1986 |
| Grant date | Mar 15, 1988 |
| Priority date | — |
| Expiry date | May 12, 2006 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60R2022/4833
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A passive vehicle seat belt system includes measures to prevent overheating of the drive motor and obstruction of system operation. Drive motor excess current demand is sensed to effect motor de-energization and/or disabling of latching means of a retractor included in the system and/or operation of an indicator light. The indicator light can prompt manual motor de-energization. Disabling of retractor latching means can be effected by a belt movement command signal. Retractors with means for signalling operation of latching means, with solenoid means for disabling latching means, and with means for indicating when a predetermined belt length has been received therein, are described.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.