| 摘要 |
PROBLEM TO BE SOLVED: To reduce the number of parts and the cost of manufacture of a game board for a pachinko game machine having a guide passage, which guides the game ball that wins the prize to the prize winning opening and the like, on the back side of game board by integrally making a guide expanding stripe for the guide passage when molding the game board. SOLUTION: A rectangular game substrate 6, which forms the game board 5 of pachinko game machine, is made as a plate body by shaping the small piece of wood, which is added with adhesive as a binding agent, to be plate and solidifying. When shaping the game substrate 6, at the same time, four boss parts 57, which is for mounting the back board 56, and multiple guide expanding stripes 58, 60, which are for guiding the game ball that passes through various prize winning opening and the like, are formed integrally on the back side of game substrate 6. At the same time, the bottom part of guide expanding stripe 58 is set as to guide the ball, which falls downward, to a recovery passage 59 being right and left pair. The middle part of guide expanding stripe 60 is set being properly dispersed as to distribute multiple balls that pass through the prize winning opening and the like. |
