Patent ID: 8228030
Filing Date: 2012-07-24
Classification: E05B,G07C,Y10T

Abstract:
1. An electromechanical lock, comprising: a power transmission mechanism to receive mechanical power produced by a user of the lock; a generator to produce electric power from the mechanical power; an electronic circuit, powered by the electric power, coupleable with a key, to read data from the key, and to issue an open command provided that the data matches a predetermined criterion; an actuator, powered by the electric power, to receive the open command, and to set the lock in a mechanically openable state; and a threshold device to control the power transmission mechanism, wherein the threshold device is configured to not release the power transmission mechanism until a mechanical tension exceeds a predetermined force threshold, such that the mechanical tension does not transform to an action producing the mechanical power received by the power transmission mechanism until the mechanical tension exceeds the predetermined force threshold, wherein the power transmission mechanism comprises a main shaft of the lock, which is rotated during the reception of the mechanical power.