Patent ID: 7494147

Claim:
An assembly for attaching a trailer to a towing vehicle, comprising: a coupler arm having a front end and a rear end, the front end of the coupler arm configured for attachment to a towing vehicle; a front arm having a rear end adapted to be attached to a front of the trailer and a front end rotatably attached to the rear end of the coupler arm, wherein the coupler arm rotates relative to the front arm between (1) an operating position wherein the front arm and the coupler arm extend along a common longitudinal axis, and (2) a stow position wherein the coupler arm is oriented cross-wise to the front arm; a lock member movable into a locked state wherein the lock member locks the front arm in the operating position, the lock member being fixedly mounted to the assembly; an actuator coupled to the lock pin, wherein the actuator is actuated to cause the lock member to move into the locked state; wherein the lock member comprises a pin, and wherein the pin extends outward to lock with the coupler arm when in the locked state.