| 摘要 |
PROBLEM TO BE SOLVED: To reduce possibility that it becomes difficult for a game ball flowing down through a route for easily entering a winning area to enter the winning area due to a collision with a game ball flowing down from another route. SOLUTION: An intrusion preventing member 41 is provided on the advancing side of the game ball from a normal route to the crossing position Z of a high probability winning route LK and the normal route LT, and a game ball detection switch 46 for the intrusion preventing member for detecting the advance of the game ball to the high probability winning route or a game ball guiding part is provided to a pinball machine. In the case of detecting the advance of the game ball to the high probability winning route or the game ball guiding part by the game ball detection switch for the intrusion preventing member, by attaining the first state of projecting the intrusion preventing member 41 to the surface of a game board 3 by a driving means and bringing the game ball flowing down the normal route into contact with the intrusion preventing member, the intrusion of the game ball to the high probability winning route is prevented. COPYRIGHT: (C)2005,JPO&NCIPI
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