Belt retractor with tongue/buckle controlled locking cam
US4720148A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 1, 1986 |
| Grant date | Jan 19, 1988 |
| Priority date | — |
| Expiry date | Dec 1, 2006 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60R22/357
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A retractor having means for controlling the withdrawal of belt therefrom being operated by insertion of a tongue into a buckle. A retractor frame has a spring biased rotatably mounted spool wrappingly receiving one end of a belt harness with the belt harness having an opposite end with buckle fixed thereto to receive a tongue mounted adjacent the retractor frame. A spring biased locking bar is engageable with ratchet shaped end plates of the spool. A cam plate pivotally mounted adjacent the spool is contactable against the locking bar. Insertion of the tongue into the buckle causes movement of the cam plate allowing the cam plate to rotate away from the locking bar. The locking bar is then pivotable into the ratchet shaped spool end plate preventing further withdrawal of the belt harness.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.