| 摘要 |
PROBLEM TO BE SOLVED: To provide a preventive device for preventing the back flow of balls of the pachinko game machine that has no bad influence on shot ball's springing out to the playing area. SOLUTION: A preventive device for preventing the back flow of balls 30 is comprised of an installation holder 31, which is placed as its upper end protrudes more upwardly than the upper end part of a leading inner rail 2b set up inside a game board, and an elastic thin part 50, which is installed to the installation holder 31 and is placed extending near guidance outer rail 2a set up outside the game board. By so doing, it reduces much of the influence of the elastic thin part 50 on the shot ball and enables the shot ball to reach nearly a location where a game player has aimed at. On the other hand, if the shot ball reaching a playing area collide with an obstacle nail or the like and is about to return to a guidance rail 2, it is stopped, and its back flow is prevented with certainty. |
