Patent ID: 7815230
Filing Date: 2010-10-19
Classification: E05B,H02K,Y10S,Y10T

Abstract:
1. An actuator unit that shifts a door lock device between a locked position and an unlocked position, the actuator unit comprising: an output shaft that rotates around an axis; an actuator that rotates the output shaft between a first angular position and a second angular position with driving force; a drive gear that rotates due to the driving force of the actuator; and a transmission mechanism that transmits rotation of the drive gear to the output shaft; wherein the transmission mechanism allows, when the output shaft is placed in any one of the first angular position and the second angular position, rotation of the output shaft from the one of the first and second angular positions to the other of the first and second angular positions without causing rotation of the drive gear, wherein the transmission mechanism allows, when the drive gear is rotated to rotate the output shaft from any one of the first angular position and the second angular position to the other of the first and second angular positions, rotation of the drive gear to be transmitted to the output shaft, and, upon the output shaft being placed in the other of the first and second angular positions, the driving force on the output shaft to be released, and rotation of the drive gear to be stopped, wherein the transmission mechanism includes a first transmission mechanism and a second transmission mechanism, wherein the first transmission mechanism includes: wherein the second transmission mechanism includes: