| 摘要 |
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. |
