| 摘要 |
A METHOD AND APPARATUS ARE DESCRIBED FOR EMERGENCY RELEASE OR UNLOCK FOR SWING TYPE AUTO GATE DURING POWER FAILURE, OR MAIN CONTROL MALFUNCTION. IN PARTICULAR, METHODS AND APPARATUS TO RETAIN MANUAL OPERATION WITHOUT DISMANTLE THE ACTUATOR ARM. A CAM RELEASE KEY (360) IS DESCRIBED TO PROVIDE MANUAL ACCESS TO DISENGAGE THE DRIVE GEAR (330) FROM THE ACTUATOR ARM. A SPRING PLATE (130) IS DESCRIBED FOR PRESSING DOWN ON A RELEASE PIN (210) DURING THE LIFTING UP OF THE RELEASE KEY HOLDER (110). A RELEASE GEAR PLATE (220) IS DESCRIBED TO PUSH AGAINST THE SPRING PIN TO DISENGAGE THE RELEASE KEY (360). AN ARM RETURN TO A LOCKING POSITION IS DIRECTED BACK TO THE NORMAL OPERATION MODE. |
