| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a game machine capable of preventing the opening operation of one door member while another door member is open.SOLUTION: A game machine comprises a game machine body portion 3 (or one door member), a game main block 5 (or another door member) on the back side of the former and a locking device 120 for locking the game machine body portion 3 and the game main block 5. The locking device 120 includes a fixing mechanism 128 for unlocking the game machine body portion 3, when a key is turned clockwise, for unlocking the game main block 5, when the key is turned counter-clockwise, and for locking the key so that the key cannot be turned counter-clockwise when the key is turned clockwise to a predetermined rotational position. If a person of a fraudulent act turns the key counter-clockwise, the turning operation cannot be performed so that the game main block 5 can be prevented from being unlawfully unlocked to prevent a problem that a fraudulent act is performed by opening the game main block 5 which has been unlocked by a person of a fraudulent act while being unknown to a game house person concerned.</p> |
