Wheel chock system
US8286757B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 9, 2010 |
| Grant date | Oct 16, 2012 |
| Priority date | — |
| Expiry date | Jul 9, 2030 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65G69/005
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A wheel restraint for restraining a vehicle at a loading dock includes various features such as, a wheel chock supported by a spring loaded articulated arm with a spring that can be selectively tightened or released, a sensor that detects whether the chock is solidly against a base plate or floor, a bi-directional pivotal joint between the articulated arm and the wheel chock to ensure that the chock can sit squarely on a mating base plate, a wheel chock that meshes with a hydraulically actuated base plate, pivotal or otherwise movable backstops that prevent a wheel chock from sliding out of position, and a base plate cleaning system. The wheel restraint also includes a first vertical resistance feature that is coupled to the base and a second vertical resistance feature that is coupled to the wheel chock to limit vertical movement between the wheel chock and the base when the first vertical resistance feature engages the second vertical resistance feature.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.