Patent ID: 8866439
Filing Date: 2014-10-21
Classification: E05B,G07C,Y10T

Abstract:
1. An electromechanical lock, comprising: a power transmission mechanism to receive mechanical power produced by a user of the electromechanical lock, wherein the power transmission mechanism comprises a mechanism to receive the mechanical power while the user is inserting a key into the electromechanical lock; a generator to produce electric power from the mechanical power; an electronic circuit, powered by the electric power, coupleable with the key, to read data from the key, and to issue an open command provided that the data matches a predetermined criterion; 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; and an actuator, powered by the electric power, to receive the open command, and to set the electromechanical lock in a mechanically openable state, wherein the threshold device is configured to control the power transmission mechanism so that the amount of the received mechanical power in the form of the electric power is sufficient for powering the electronic circuit and the actuator, and so that a normal operation of the electromechanical lock, including an insertion of the key into the electromechanical lock, is sufficient for power the electronic circuit and the actuator.