| 摘要 |
PROBLEM TO BE SOLVED: To increase the interest of a player by guiding a ball to a V-zone by a guide part of a ball guide means when an opening and closing cover plate is opened, and stably holding the opening and closing cover plate by a cover receiving part. SOLUTION: A plurality of ball guide means are mounted on a lower front surface of a large prize hole 4 of a main body 1 with intervals for passing the balls, an opening and closing cover plate 5 is provided with a plurality of recessed grooves where the ball guide parts of the ball guide means can be engaged and projected when the opening and closing cover plate 5 is opened, the ball guide means are engaged and projected to the opening and closing cover plate to form a ball guide passage by the ball guide parts when the opening and closing cover plate is opened, and the opening and closing cover plate 5 is held by a cover receiving part.
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