| 摘要 |
PROBLEM TO BE SOLVED: To reduce the frequency of replacement of a ball polishing member, and to simplify a configuration of a whole device in an enclosed ball type game machine which circulates and uses game balls by recovering game balls shot from a shooting device and supplying the recovered game balls to the shooting device again. SOLUTION: A ball polishing device 250 is configured to change a contact surface of the ball polishing member 261 by driving force of a drive source transmitted through a power transmission device 240. In addition, the power transmission device 240 is equipped with a power controller 241 which blocks the transmission of the power to the ball polishing device 250 when a driving direction of the drive source is in a forward direction and transmits power to the ball polishing device 250 when the driving direction of the driving source is in a reverse direction. COPYRIGHT: (C)2011,JPO&INPIT |
