| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a slot machine using game balls, capable of previously detecting game ball absence.SOLUTION: Taking-in devices 301-303 include taking-in portions for taking in a game ball (composed of a gate member, a guide, and a solenoid), and waiting-game ball number detecting sensors 803 for detecting waiting game balls that are game balls waiting at upstream of the taking-in portions, thereby allowing the number of the waiting-game balls waiting upstream of the taking-in portions to be detected, that is, allowing the number of the waiting-game balls to be taken in the taking-in devices 301-303 next time to be detected and the game ball absence to be previously detected. The number of the waiting-game balls detected is able to help notification of the game ball absence in advance as well.</p> |
