| 摘要 |
PROBLEM TO BE SOLVED: To realize favorable maintenance performance of a detection means for detecting whether or not game balls are stored in full quantity. SOLUTION: A plate unit 40 is composed of an upper plate 42 for storing game balls to be shot toward a game board G, and a lower plate 44 for storing game balls flowing down when the upper plate 42 is full. On the back surface side of a base 41 of the plate unit 40, a ball passage 70 is provided to let the game balls overflowing from the upper plate 42 flow down, and the detection means is provided on the ball passage 70 to detect whether not game balls are stored in full quantity. As the plate unit 40 is opened to an inner frame 14, the ball passage 70 provided on the back surface side of the base 41 is exposed, thereby ball jam or the like in the ball passage 70 or around the detection means can be easily eliminated. COPYRIGHT: (C)2008,JPO&INPIT
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