| 摘要 |
PROBLEM TO BE SOLVED: To easily attach and detach a sensor for performing detection for each winning port. SOLUTION: A ball guiding device 8 is provided on a position corresponding to winning ports 6k and 6m on the back surface side of a game board 3, and the ball guide paths 813k and 813m for guiding respective winning balls which enter the winning ports to one ball path 814 are provided. To positions facing the respective winning ports 6k and 6m, passing sensors 818Sm and 818Sk are stuck from the outer side. In order to ensure the detection by the passing sensors 818Sm and 818Sk, the interval of the back surface of the game board 3 and a side wall to which the passing sensors 818Sm and 818Sk are stuck facing it is set to the shortest distance within such a range that a game ball can pass through. COPYRIGHT: (C)2008,JPO&INPIT
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