| 摘要 |
PROBLEM TO BE SOLVED: To provide a game machine having a strong hinge, even if a middle frame inclines to one side, smoothly turning the middle frame relative to an outer frame. SOLUTION: A lower hinge 25 comprises a lateral plate 30 fixed to an outer frame lower column and a vertical plate 29 fixed to the outer frame left column. The lateral plate 30 is provided with a projection part 35 formed from the front side to the rear side of the outer frame and a shaft pin 40. An engagement hole of a hook part fixed to the lower part of the middle frame is engaged with the shaft pin 40 to journal the middle frame to the outer frame. When the middle frame is closed, the lower face of the hook part swings on the projection part 35 to slightly raise the middle frame. Even if the middle frame inclines to the one side by the own dead weight, the lower face of the middle frame is prevented from colliding on the front face side of the outer frame lower column, so that the middle frame can be smoothly opened/closed. The projection parts 35, 36 and 37 are injection molded to improve the strength of the lower hinge 25. COPYRIGHT: (C)2005,JPO&NCIPI
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