| 摘要 |
<P>PROBLEM TO BE SOLVED: To prevent a prescribed advantageous state such as a game ball putout state from being fraudulently generated although the game ball does not pass a prize winning port or the like. Ž<P>SOLUTION: A Pachinko machine 10 is equipped with a body frame 12 and a front door frame 13 which is disposed in front of the body frame 12 and is openably/closably supported on one side of the body frame 12. When a game ball shooting handle 18 provided in the lower part of the Pachinko machine 10 is operated, the game ball in an upper tray 23 is shot toward a game region. Here, detection switches for detecting the passage of the game ball are provided at respective prize winning ports in the game region. When each detection switch detects the passage of the game ball, two detection signals are output from the detection switch to a control device related to game control. Both of the two detection signals are inputted to determine whether or not the signals are normal detection signals. Therefore, when a detection signal is fraudulently produced, the signal can be invalidated. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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