| 摘要 |
PROBLEM TO BE SOLVED: To facilitate the loading or unloading of a plurality of operating parts installed on a ball tray. SOLUTION: A performance operation part 60 and a ball dispensing operation part 70 are installed on a base member 52 detachably held on the front frame, a ball receiving part and a cover member. The performance operation part 60 gets a protruded piece 63b arrayed protruding to the lower outer circumference of a performance operation body 62 sticking downward through the first opening part 56 of the base member 52 retained on a retaining piece 66b of a fixture 66 to hold the performance operation body 62 on the base member 52. The ball dispensing operation part 70 has a ball dispensing operation body 72 held with a holding pawl 59 disposed at the second opening part 58 of the base member 52. COPYRIGHT: (C)2009,JPO&INPIT
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