| 摘要 |
PROBLEM TO BE SOLVED: To efficiently cancel the abrupt engagement of ball without machine enlargement or any remarkable increase of production costs. SOLUTION: At the specified spot of a ball regulating part 10C, a displacing actuator 30 is arranged in contact with game balls and when the abrupt engagement of ball occurs, the game ball in contact with the relevant displacing actuator 30 is displaced by driving the displacing actuator 30.
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