Patent ID: 8051688

Claim:
A lock device, comprising: a lock configured to lock and unlock a lid member, the lid member being held at a counterpart of a main body in a closed state; an operating button to be pushed in one direction for an unlocking operation; a slidable engagement member having an engageable portion, the engageable portion being adapted to selectively engage with and disengage from the counterpart of the main body; a rotor rotated by a locking and the unlocking operations of the lock; a coupling member disposed between the operating button and the engagement member, said coupling member being arranged so that the operating button and the engagement member are set in an interlocked state by the unlocking operation and are set to be free of the interlocked state by the locking operation; and an arm disposed on the rotor and being operatively coupled to one end of the coupling member to slide the coupling member in synchronization with rotation of the rotor, wherein the coupling member is supported so as to be slidable in a direction substantially orthogonal to a depressing direction of the operating button, and the engagement member is supported so as to be slidable in substantially a same direction as a depressing direction of the operating button so that the engagement member slides through the coupling member adapted to disengage the engagement member from the main body by operating the operating button when the lock is set in an unlocked position.