| 摘要 |
PROBLEM TO BE SOLVED: To prevent trouble such that symbols do not change over a long time after a game ball has entered a starting hole. SOLUTION: A pachinko machine has a guide passage 16 provided integrally with the part of a back cover located behind a starting hole 4, and a first detector 19 is installed at the rear end of the guide passage 16. A ball guide passage 14 is provided integrally with the right upper sides of the upper and lower protective covers of a controller 13 in such a way as to communicate with the front end of the guide passage 16, and a second detector 15 is provided at approximately the center of the ball guide passage 14. When the first detector 19 has detected the entrance of a ball into the starting hole, symbols displayed on a symbol display device start to change, and when the second detector 15 detects the entrance of a ball into the starting hole, the controller 13 executes judgment on a jackpot. |
