| 摘要 |
PROBLEM TO BE SOLVED: To confirm the proper or improper of a ball feeding and shooting performance and to grasp the working state of a game machine by detecting balls shot one by one and suitably shot into a game range. SOLUTION: A shot ball detecting means 40 is arranged in a specified part facing a shooting rail member 18 for guiding a shot ball shot from a shooting device X. An outer rail member 47 and an inner rail member 48 for guiding the shot ball toward a game range 53 are independently connected to a current part. A deformable ball guide switch piece 41 for allowing jumping of the shot ball and preventing returning of it and for switching the electrification state between both rail members 47, 48 is provided near an outlet part 51 between both rail members 47, 48. An input detection signal of the shot ball detecting means 40 and the detection condition by electrification between the rail members 47, 48 by the ball guide switch piece 41 are output to a control means for judging the effectiveness on the basis of setting of the detecting time.
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