| 摘要 |
PROBLEM TO BE SOLVED: To provide a game machine where a behavior is imparted efficiently to a game ball flowing down on the front surface of a big prize-winning port. SOLUTION: Through a notch 410 formed at an opening and closing door 400 for covering the big prize-winning port 406 being the opening part of a variable prize-winning apparatus 32, bent nails 413 are implanted to square pillars 412 erected from the upper part of the inner wall of the big prize-winning port 406. When the opening and closing door 400 is operated to be opened or closed, the nails 413 pass through a part of the notch 410. Namely, the bent nails 413 constantly project from the opening and closing door 400 without regard to the opening operation of the opening and closing door 400. COPYRIGHT: (C)2007,JPO&INPIT
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