| 摘要 |
PROBLEM TO BE SOLVED: To prevent the collision of a returning ball with a ball sensor, and to prevent the detection of a returning ball with the ball sensor by providing the ball sensor at a position over a tip of a shooting rail, and providing a returning ball preventing device in front of the ball sensor. SOLUTION: A ball holding piece 9 is fixed to a game board fitting frame at a position over a base end of a shooting rail 2, and a returning ball recovery port 10 is provided between the shooting rail 2 and a guide rail, and the returning ball recovery port 10 is communicated with a lower prize ball receiver. A ball sensor 13 is provided at a position over a tip of the shooting rail 2 while utilizing a vacant space of a game board. A sensor protecting member 14 is fixed to the game board at a position in front of the ball sensor 13, and a returning ball preventing piece 12 is fixed to the sensor protecting member 14. This returning ball preventing piece 12 is formed of a flexible material such as a spring steel, and a tip thereof is obliquely extended downward.
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