| 摘要 |
PROBLEM TO BE SOLVED: To solve the problem that a route from a game ball tank to a tank rail is clogged with balls. SOLUTION: On a game ball passage section 100 having a game ball tank 120 for storing game balls and a tank rail 140 for flowing down game balls from a lower drain 121 of the game ball tank to a game ball-paying mechanism, a piezo speaker (sound output means) 160 which gives vibration to the game ball passage section 100 and also outputs sound is placed. Because vibration formed while the piezo speaker 160 outputs sound is given to the game ball passage section 100, the flow of the game balls is promoted without jamming in the game ball tank 120 or the tank rail 140. By using the sound output means in this constitution, ball jamming can be prevented without separately making a device for giving vibration to the game ball passage section 100. COPYRIGHT: (C)2009,JPO&INPIT
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