Patent ID: 7918114
Filing Date: 2011-04-05
Classification: E05B,Y10T

Abstract:
1. An actuator assembly for an electronic lock, the lock including a lock member linearly displaceable between a locked position and an unlocked position, the actuator comprising: a motor having a shaft rotatable about a central axis; a coupler spring disposed about the axis and having a first end coupled with the lock member and a second, opposing end; and a drive member one of coupled with and integrally formed with the motor shaft and having a helical drive surface threadably engaged with the coupler spring second end such that rotation of the motor shaft displaces the coupler spring generally linearly along the axis to move the lock member between the locked and unlocked positions, wherein the drive member includes a helical spring having a first end threadably engaged with the coupler spring and a second end connected with the motor shaft.