| 摘要 |
PROBLEM TO BE SOLVED: To surely prevent a fraudulent action without damaging the function of a variable winning device, in a game machine such as a Pachinko game machine provided with the variable winning device. SOLUTION: On a game board 3 of the Pachinko game machine, an operation port 12, a symbol display device 13, and the variable winning device 21 with a big winning port 16, etc., are provided. A controller 50 generates a big winning state on the condition that a predetermined condition is satisfied. Upon a big winning, a shutter 22 is tilted by a solenoid 23 for the big winning port and the big winning port 16 is put into an open state and a closed state. A keeping means for keeping the shutter 22 in a vertical state against force to fraudulently tilt the shutter 22 when the shutter 22 is in the vertical state is provided, and when the solenoid 23 for the big winning port is driven, a keeping function by the keeping means is invalidated. COPYRIGHT: (C)2011,JPO&INPIT
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