Track follower for a vehicle restraint
US8287223B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 13, 2007 |
| Grant date | Oct 16, 2012 |
| Priority date | — |
| Expiry date | Feb 18, 2030 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65G69/003
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A vehicle restraint includes a hook supported by a carriage that travels vertically along a track, wherein the hook can move to selectively restrain or release a vehicle's ICC bar at a loading dock. The carriage includes a unique roller arrangement that minimizes friction while maximizing the rolling line contact between a set of rollers and the track. Instead of individual rollers mounted at opposite ends of a shaft extending from the carriage, two or more rollers are mounted to a module, and two such modules are rotatably or otherwise movably attached to the ends of the shaft. Each module includes a shaft-receiving bore having an inner diameter comparable to that of a conventional individual roller, thus the unique roller arrangement lends itself well to retrofit applications.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.