| 摘要 |
PROBLEM TO BE SOLVED: To prevent game balls stored in a tray from being brought out by a fraud if the fraudulence is performed in a pachinko game machine by discharging the game balls stored in the tray in a short period of time. SOLUTION: An open/close bottom plate 20 is disposed openably/closably on the bottom 13 of the tray 5 for storing game balls. When signals indicating fraudulence are input to a main control device from sensors for detecting phenomena caused by the fraudulence, a bottom plate open/close solenoid 21 is operated via an open/close bottom plate control device, and the open/close bottom plate 20 is rotated/moved downward from the position to close the bottom 13 and is inclined. Then, game balls on the inclined open/close bottom plate 20 flow down in a short period of time into a received ball discharge part 30 under the bottom 13, and game balls on the bottom 13 around the open/close bottom plate 20 also flow down into the received ball discharge part 30 from the opened part of the open/close bottom plate 20. Accordingly, the fraud leaves the game machine without collecting game balls, and the possibility of the fraud performing fraudulence again in another game machine in the same game parlor is low. COPYRIGHT: (C)2009,JPO&INPIT
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