Patent ID: 6190108
Filing Date: 2001-02-20
Classification: B65G

Abstract:
A device for restraining a vehicle to prevent movement away from a loading dock comprising;a stationary base,a hook member movable relative to said base,a pivoting arm assembly coupled to said base and to said hook member, said pivoting arm assembly having inter-connected links to raise said hook member from a lower inoperative position where said vehicle can move toward or away from the loading dock to an upper operative position where said vehicle is restrained from outward movement without horizontal movement of said hook member,means to raise said hook member to said operative position,said hook member having multiple hook vehicle restraining positions defined by first and second vertical wall portions spaced from each other when said hook member is in said upper operative position and said lower inoperative position; wherein said hook member further comprises a first substantially horizontal section positioned inward toward said loading dock, said first wall portion being substantially upright and abutting said first substantially horizontal section and a second substantially horizontal section positioned outward from said first wall portion and abutting said second wall portion, and said first and second substantially horizontal sections are at different vertical positions on said hook member; wherein said base is secured in a stationary manner relative to a vertical face of said loading dock, said base further comprising a housing to house said pivoting arm assembly and said hook member when in said lower inoperative position and, one of said interconnected links forming a top for said housing when said hook member is in said lower inoperative position.