| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a Pachinko game machine that can keep on cleaning a game ball circulating in a ball circulation passage in actual operation of a Pachinko game machine for cleaning the same by utilizing position energy of the game ball without requiring any drive means separately, and by making the structure simple and compact. <P>SOLUTION: A rolling passage formation member 40 is provided. In the rolling passage formation member 40, a rolling passage part 34 is formed, where the game ball B rolls and falls while performing rotary movement repeatedly, in a partial ball circulation passage (ball discharge passage 32) that includes a ball supply passage for supplying the game ball B to a ball shooting part and the ball discharge passage 32 for discharging the game ball B from a game area, and circulates the game ball B via the game area. The rolling passage formation member 40 includes a cone-shaped rolling surface 40a, where the game ball B performs rotary movement and the shape of a cross section is formed in an oval. <P>COPYRIGHT: (C)2012,JPO&INPIT |
