| 摘要 |
PROBLEM TO BE SOLVED: To provide a game machine which enables the detection of the game balls in a number of detection areas with a limited number of ball detection switches. SOLUTION: A plurality of detection areas y and z are so arranged along a ball path 18, through which the game balls x pass, as to allow the positioning of the ball detection switches 60 for detecting the game balls in the detection areas y and z so that the ball detection switches 60 can be transferred to the detection areas y and z necessary for the detection of the game balls. With such an arrangement, the game balls in the different detection areas y and z can be detected using the same ball detection switch 60 to allow the curtailment of the number of ball detection switches relative to the number of detection areas eventually reducing the frequency which causes the disturbance in the detection of the game balls by the troubles of the ball detection switches. COPYRIGHT: (C)2006,JPO&NCIPI
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