| 摘要 |
PROBLEM TO BE SOLVED: To provide a technique which eliminates the need for a guide gutter for aligning game balls in a ball tank and allowing the game balls to flow down in a pinball game machine.SOLUTION: Inside a ball tank 23 for a pinball game machine, a plurality of partition plates 23e extend from a front side wall surface 23c toward a rear side wall surface 23d, a plurality of partition plates 23f extend from the rear side wall surface 23d toward the front side wall surface 23c, and the partition plates 23e on the front side and the partition plates 23f on the rear side are alternately arranged in a lateral direction. With this configuration, one line of a guide passage 23g is formed inside the ball tank 23. The guide passage 23g is formed in a cylindrical shape enabling game balls to pass while aligning the game balls in one line. A bottom surface 23h of the guide passage 23g is a gently inclined surface from the vicinity of a receiving port 23a toward the vicinity of a discharge port 23b.SELECTED DRAWING: Figure 3 |
