| 摘要 |
PROBLEM TO BE SOLVED: To provide a big prize-winning port device which solves defective opening caused by a game ball being caught. SOLUTION: In the big prize-winning port device having an opening/closing door which closes a big prize-winning port 20 formed at a fixed substrate 10 fixed to a game panel and opens forward with a prescribed signal to constitute a pocket to guide the game ball which has fallen into the pocket to the port 20, the edge lines EA and EB of the door 30 are tilted.
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