| 摘要 |
PROBLEM TO BE SOLVED: To provide a game ball falling passage reducing an occupation space of a game ball falling passage 4 in a Pachinko game machine 1 and preventing the application of an overload to a shape for decelerating the speed when falling a game ball. SOLUTION: This game ball falling passage 4 allows the passing of game balls P which fall in the direction of the gravitational force, the cross section perpendicular to the falling direction of the game balls is polygonal, the inner faces 26, 28, 50 and 52 of the game ball falling passage are dispersively provided with a plurality of rectangular sheet-like projections 27-1 to 27-8, 29-1 to 29-8, 51-1 to 51-8 and 53-1 to 53-8 respectively, and each sheet-like projection is so formed that one sheet-like projection provided in one of the inner face and another sheet-like projection provided in an inner face adjoining to the one inner face are consecutively provided in the falling direction of the game balls leaving no space therebetween. COPYRIGHT: (C)2009,JPO&INPIT
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