| 摘要 |
<p>PURPOSE: To provide such a safety switch as releasing an actuator so as to drive a switching device by inserting individual simple key into a housing. CONSTITUTION: A slot 5 for receiving an actuator 10 is provided in a housing 1 and plural pins 6 project inside of the slot. Pins are elastically pressed on the inserted key 15 by means of springs so as to lock the actuator and the key includes the code pattern of a receiving orifice responding to the pin which makes its locking for the purpose of releasing the actuator so that the pin can be expressed in form of a code respondingly.</p> |
