| 摘要 |
PROBLEM TO BE SOLVED: To provide a locking device capable of preventing unauthorized unlocking (picking). SOLUTION: This locking device is provided with a cylinder lock which has a bolt rod for locking/unlocking a door of a safe, a pin-body switch 20e which detects a slide of at least one of plural pin bodies of the cylinder lock, a switch bolt-rod switch 25 which detects an unlocking position of the bolt rod, and a controller 27 which controls the operation of a buzzer 31 according to detection signals from respective limit switches 20e and 25. The controller 27 controls the buzzer 31 so that the buzzer 31 can generate an audible alarm, when the detection signal from the switch 25 is not input within a prescribed time after input of the detection signal from the switch 20e.
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