| 摘要 |
PROBLEM TO BE SOLVED: To provide a pinball game machine which can distinctively detect shot balls winning in a winning opening for every mode of winning openings. SOLUTION: Right and left blades 3 and 4 have projecting walls 3a and 4a projecting to facing face sides and increasing the projection amounts downward. The right and left blades 3 and 4 are separated greater than the diameter W10 of a shot ball 20 in the upper side W1 and smaller than the diameter W10 of the shot ball 20 in the lower side W2 by the projecting walls 3a and 4a during shrinkage. The projecting walls 3a decreases their projecting amounts toward the game board face 10 side, a shot ball 20 winning during shrinkage is stopped dropping in a nearly half position of the projecting walls 3a and 4a and delivered to as first winning route 11 on the rear side of the game board face 10 along the slopes of the projecting walls 3a and 4a. On the other hand, during expansion of the winning opening 1, the shot ball 20 drops without being blocked by the projecting walls 3a and 4a and delivered to a second winning route 12. COPYRIGHT: (C)2008,JPO&INPIT
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