Automatic wheel chock

Details Automatic wheel chock Automatic wheel chock

1997-08-26

2000-09-26

Werner, Frank E.

Material or article handling

Load-transporting type vehicle and external means...

Means serves to align wheeled vehicle and load receiving or...

414584, 414396, 188 32, B65G 6702

Patent

active

061234966

ABSTRACT:
A system for restraining a vehicle, such as a truck having a pair of separated tires mounted on an axle, positioned at a loading dock. A member is movable from a stored position near or under the loading dock to an operative position under the vehicle and located between said separated tires. A pair of restraining elements are mounted on the movable member and are movable from a stored position between the tires to an outward extended position where each of the restraining elements engage a respective one of said pair tires. A mechanism, such as an hydraulic system, is mounted to said member at one end and to a fixed point at the other to move the member to a position under the vehicle. The pair of restraining elements is moved to the outward extended position by action of the moving mechanism for the member or by movement of a sensor that contacts a tire.

REFERENCES:
patent: 2801011 (1957-07-01), Overlach et al.
patent: 4207019 (1980-06-01), Cone
patent: 4911603 (1990-03-01), Pollner et al.

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