Delayed locking retractor
US5370333A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 31, 1993 |
| Grant date | Dec 6, 1994 |
| Priority date | — |
| Expiry date | Mar 31, 2013 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60R22/35
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A pre-emergency delayed locking retractor. A pawl is movably mounted to a retractor frame and is lockingly engagable with spool ratchet teeth with a web wound on the spool. A cam wheel mounted to the retractor frame or a web follower mounted to the pawl are operable to keep the pawl apart from the ratchet teeth until a predetermined amount of web is withdrawn. An inertial device engaged with an end of the pawl forces the pawl away from the ratchet teeth until the retractor frame is moved. The inertial device includes a mass mounted in an unstable fashion to the frame with an upstanding finger contactable by an arm fixedly mounted to an end of the pawl.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.