| 摘要 |
PROBLEM TO BE SOLVED: To attach a game board to a body frame from the front on the basis of the front face while simplifying attachment structure. SOLUTION: A front face basis member 27 is fixed on a front face periphery part of a game board 13 and a receiving part 30 is formed integrated with a body frame 12 in accordance with the front face basis member. A position of the front face of the game board 13 is restricted on the basis of the front face of the game board 13 and the game board 13 is set on the body frame 12 by making a stopper face 27a of the front face basis member 27 abut on a front end face 30a of the receiving part 30 from the front. An engaging projection 33 is inserted into and engaged with in advance a through hole 31 formed in the front face basis member 27, the game board 13 is set on the body frame 12 and simultaneously the engaging projection 33 is inserted into an engaging hole 32. The game board 13 may be detachably installed on the body frame 12 by only pushing a wedge member 36 of the engaging projection 33 into the front face basis member 27 from the front to forcibly widen the engaging projection 33 to be engaged with and retained in the engaging hole 32. COPYRIGHT: (C)2007,JPO&INPIT
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