US Patent 8696011 Trailer-hitch system and method

A trailer-hitch system comprises a hitch frame adapted to be secured to a vehicle and having a receiver for accommodating a foremost end of a mount unit. The mount unit has a member portion in mating engagement with the receiver of the hitch frame. A connector for connection with a trailer is provided at a rearmost end. The trailer-hitch system also comprises a mechanism actuated to press a portion of the member portion against the receiver for locking the mount unit into the mating engagement with the receiver. A method for locking a mount unit in a receiver of a hitch frame is also provided.