Vehicle restraint using both linear and pivotal movement

Abstract From the Canadian patent

An improved vehicle restraint for preventing movement of a vehicle such as a truck away from a loading dock during a loading operation. The vehicle restraint includes a guide frame mounted on the front face of a loading dock and a vehicle restraining means is movable on said guide frame from a lower storage position to an upper operative position where it engages the ICC bar on a truck. A biasing mechanism serves to bias the restraining means upwardly to the operative position while a power operated drive mechanism acts to drive the restraining means downwardly to the storage position. The restraining means includes a slide or carriage that moves on the guide frame and a hook that is …