초록 ▼

A chocking device for securing a vehicle at a loading dock having a guide rail mountable to a driveway and a carriage movable on the guide rail. A drive mechanism, which may be hydraulic or electric is employed to advance said carriage from a stored position to a position proximate to a wheel of the

A chocking device for securing a vehicle at a loading dock having a guide rail mountable to a driveway and a carriage movable on the guide rail. A drive mechanism, which may be hydraulic or electric is employed to advance said carriage from a stored position to a position proximate to a wheel of the vehicle. A chock assembly is pivotedly mounted on the carriage and is movable by the drive mechanism from a retracted position to an engaging position. In one embodiment the chock assembly comprises an arm having a sensor bar to contact one portion of the wheel and a chock plate movable in response to contact of the sensor bar against the wheel to contact another portion of the wheel and block movement of the vehicle. A lock assembly is mounted on the guide rail for movement thereon, and is moved by the drive mechanism into contact with the chock plate to restrain the chock plate in the extended position. In another embodiment of the locking device, a leadscrew advances the chock plate and by sensing the load the power is terminated when the plate is firmly in contact with the wheel.

대표청구항 ▼

[ I claim:] [1.] A chocking device for securing a vehicle at a loading dock comprising:a guide rail mountable to a driveway, a carriage movable on said guide rail and a drive mechanism to advance said carriage from a stored position to a position proximate to a wheel of said vehicle;a chock assembly

[ I claim:] [1.] A chocking device for securing a vehicle at a loading dock comprising:a guide rail mountable to a driveway, a carriage movable on said guide rail and a drive mechanism to advance said carriage from a stored position to a position proximate to a wheel of said vehicle;a chock assembly pivotally mounted on said carriage, said chock assembly movable by said drive mechanism from a retracted position to an engaging position and said chock assembly comprising, an arm having a sensor bar to contact one portion of said wheel and a chock plate movable in response to contact of said sensor bar against said wheel to contact another portion of said wheel and block movement of said vehicle; and,a lock assembly mounted on said guide rail for movement thereon, said lock assembly movable by said drive mechanism into contact with said chock plate to restrain said chock plate in said engaging position.