Electronic lock actuator with helical drive member engaging with a spring to lock and unlock the lock

摘要

An electronic lock is disclosed. The lock has a lock member (12) linearly displaceable between a locked position and an unlocked position. A motor (14) having a shaft (22) rotatable about a central axis (24) is either coupled with or integrally formed with a drive member (28). A coupler spring (16) is disposed about the axis and has a first end (16a) coupled with the lock member (12). A second, opposing end (16b) of the coupler spring is threadably engaged to the drive member (28) by a helical drive surface, provided by a second a helical spring (18). The helical spring (18) has a first end threadably engaged with the coupler spring (16) and a second end connected with the drive member (28). Rotation of the motor shaft (22) displaces the coupler spring (16) generally linearly along the axis (24) to move the lock member (12) between the locked and unlocked positions.