| 摘要 |
PROBLEM TO BE SOLVED: To lower the probability of the entry of a prescribed number or more of game balls by opening and closing of a winning port once. SOLUTION: The big winning port 301 of an attacker winning implement 26 is formed in the shape of being spread open to the front side. On the right corner of the back surface 302 of the big winning port 301, a safe ball path hole 303 is provided. On the lower surface of the safe ball path hole 303, a winning ball detection sensor 304 is provided. On the upper part of the safe ball path hole 303, a guide member 309 by the right and left columns 308a and 308b of a plurality of nails 307a and 307b is formed. The guide member 309 lowers the probability of the entry of the prescribed number or more of the game balls by the opening and closing of the big winning port 301 once by guiding the game ball falling down a game area 202 for right-handed hitting to the safe ball path hole 303 provided with the winning ball detection sensor 304. COPYRIGHT: (C)2008,JPO&INPIT
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