| 摘要 |
<P>PROBLEM TO BE SOLVED: To effectively prevent illegal conducts caused by inserting piano wire, celluloid sheets, or other illegal members by simple structure. Ž<P>SOLUTION: The pinball game machine includes: an opening/closing door 6 having a transparent plate 45 incapable of visualizing a game region 13 on the front side of a game board 5 ; and an insertion preventing wall 49, which projects toward the game board 5 from the outer peripheral side of a guide rail 14 of the game board 5 in order to prevent the insertion of the illegal members into the game region 13, on the side of the opening/closing door 6; and a transparent plate unit 44 having a holding member 46 for holding the outer periphery of the transparent plate 45 by the entire periphery of the holding member. The insertion preventing wall 49 is provided at the holding member 46. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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