| 摘要 |
PROBLEM TO BE SOLVED: To achieve a substantial cost advantage by improving exchanging workability and assembling accuracy in the replacing of game machines to minimize industrial wastes generated during the replacement of the game machines. SOLUTION: There are arranged an outer frame mounted on an island of a game hall, an intermediate frame 50 which comprises a reinforced frame body to be openably mounted on the outer frame through a hinge mechanism and has a mechanism part such as ball path mechanism 70 assembled thereon and an inner frame 60 which is detachably mounted on the intermediate frame 50 and provided with a gauged board surface. The replacement of game machines is accomplished solely confined to the inner frame 60 to improve exchanging workability while securing a better assembling accuracy thereby reducing wastes. The ball path mechanism 70 provided on the intermediate frame 50 is disposed toward the inner side along the vertical direction of a hinge side rim part. This can secure more installing space of a display device and a substrate 67 to be installed on the rear side of the inner frame 60 thereby enhancing the freedom in formation.
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