| 摘要 |
PROBLEM TO BE SOLVED: To ensure the strength of a board surface door of a game machine. SOLUTION: In the board surface door 3, a front member 11 is made of transparent plastic, and a flat surface 19 provided at the center part is formed as a see-through region for seeing through a game region, that is, the front member 11 is not structured to fit a transparent plate (such as a glass pane). Since there is no window hole provided therefor, there is no lowering of strength caused by an opening used as a window. Consequently, there is no need to form the front member 11 to be particularly thick-walled or to provide reinforcing ribs. Even in the case of providing reinforcing means such as ribs, the number, arranged density, size, and the like can be markedly reduced in comparison with a conventional one. COPYRIGHT: (C)2006,JPO&NCIPI
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