Patent ID: 8375753
Filing Date: 2013-02-19
Classification: E05B,E05Y,Y10T

Abstract:
1. An electromechanical lock, comprising: a latch solenoid driven mechanism comprising a plunger axially displaceable, by a solenoid actuated by an electrical command signal, the displacement being between retracted and extended states and the plunger being associated with a first urging arrangement that biases the plunger in a first axial direction from the retracted to the extended states; and a locking mechanism, comprising: the plunger being operatively associated with the locking mechanism to cause said lock actuation member to move from the first to the second state for shifting the lock to an unlocked state upon displacement of the plunger in the first direction, and to permit movement of the lock actuation member, induced by the third urging arrangement, from the second to the first state for shifting the lock to a locked state, upon displacement of the plunger from the extended to the retracted state, and wherein the biasing force of the first urging arrangement in a tensioned state is greater than the biasing force of the second urging arrangement, and the biasing force of the second urging arrangement in its tensioned state is greater than the biasing force of the third urging arrangement.