| 摘要 |
PROBLEM TO BE SOLVED: To provide a game machine which can achieve the expansion of the performance area and the prevention of the fraudulence simultaneously as well as the replacement of a performance device associated with the replacement of the game board. SOLUTION: The game board 6 has the performance device 12 so installed as to be protruded outside from its top rim. The performance device 12 is so assembled as to make its upper end 12a overlap along the upper end 3a of an inner frame 3 as viewed from the front, while its lower end is assembled in proximity to the upper end 5a of a front frame to cause the performance device 12 exposed clearly. COPYRIGHT: (C)2010,JPO&INPIT
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