Patent ID: 6871451

Claim:
A locking system for a moveable member supported by a support frame, the support frame having an engagement surface, the locking system comprising: an input device adapted to be mounted on the moveable member and rotatable between a first position and a second position, the input device having a shaft; a link arm having a first end and a second end, the first end having a hook portion and being connected to the input device; a lock member having a lock surface, the lock member being associated with the link arm; and a spring having one end connected to the link arm and another end connected to the lock member; wherein the link arm and spring move the lock member in response to rotational movement of the input device from the first position to an intermediate position wherein the lock member moves from an unlocked position to a locked position wherein the lock surface is configured to contact the engagement surface, and wherein the operable connection between the link arm and lock member allows the link arm to move relative to the lock member without any further locking movement of the lock member to allow further rotation of the input device to the second position wherein the hook receives the shaft.