| 摘要 |
PROBLEM TO BE SOLVED: To prevent a fraud by regulating the curvature of a transparent plate positioned in the front side of a game board. SOLUTION: An abutment part 57 projecting to the side of the transparent plate 31 is formed in an inner rail 56 demarcating the game area 52 at least at a part constituting a shooting rail. The abutment part 57 abutting on the transparent plate 31 is provided in the inner rail 56 at a portion close to vanes 302 provided in a center accessory 64 to suppress the deflection of the transparent plate 31 toward the game board in the adjacency of the vanes 302, prevent the contact between the transparent plate 31 and the vanes 302 and secure the smooth opening/closing control of the vanes 302. The abutment part 57 is provided across the whole length of the rail 56 to prevent the fraud by inserting a wire. COPYRIGHT: (C)2007,JPO&INPIT
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