Webbing retractor
US4597546A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 29, 1985 |
| Grant date | Jul 1, 1986 |
| Priority date | — |
| Expiry date | Nov 29, 2005 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60R22/415
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
In a webbing retractor used for a seatbelt system protecting an occupant in an emergency situation of a vehicle, a locking wheel is rotated, following a rotation of a webbing takeup shaft, and a locking means prevents the takeup shaft from webbing-unwinding rotation when lag in rotation of the locking wheel occurs relative to the takeup shaft in the emergency situation of the vehicle. Opposed to the locking wheel is a control means which can be biased selectively in either direction of approach to the locking wheel or direction of separation therefrom in accordance with a webbing-winding amount and a webbing-unwinding amount. Accordingly, the webbing retractor can be used properly as an Automatic Locking Retractor and an Emergency Locking Retractor at need.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.