Patent ID: 6082952
Filing Date: 2000-07-04
Classification: B65G

Abstract:
A system for chocking a vehicle to prevent outward movement away from a structure comprising:a horizontal guide rail positioned on the approach to said structure,a carriage assembly movable on said rail from a stored position to an operative position adjacent a tire of a vehicle to be restrained,a chock carried on said carriage assembly, said chock movable a substantially horizontal manner from a stored position that does not impede movement of a vehicle to be restrained to a vehicle engaging position where said chock is extended and blocks movement of said vehicle away from said structure,a retaining spring carried by said carriage assembly and operably coupled to said chock to said bias said chock in a stored position,a cam bar carried on said carriage assembly and operably connected to said retaining spring,a sensor projecting onto said approach and operably coupled to said chock, said sensor movable with said carriage assembly to engage the tire of said vehicle, wherein motion of said carriage assembly ceases when said sensor contacts said tire and said chock is extended to said vehicle engaging position when said sensor movement stops and the compressive force of said spring is overcome.