| 摘要 |
PROBLEM TO BE SOLVED: To provide an assembly structure of a circulation passage of a game machine which is available in the current state of a space in a depth direction inside a game island even in case game balls collected by a collection gutter are returned to a ball replenishing tank via a circulation passage.SOLUTION: An assembly structure of a circulation passage of a game machine 1 returns game balls P collected by a collection gutter 5 assembled to an outer frame 2 or a front frame 3 joined by a hinge 4 to the outer frame 2, to a ball replenishing tank 6, and on one 10 back surface side of left and right vertical frame members 10, 12 in the outer frame 2, notches 10a are formed along the vertical direction. The circulation passage comprises a ball gutter 30 whose cross section is formed into an almost square shape or U-letter shape. The ball gutter 30 is assembled in the way that its lower end is mounted on lower surfaces 10b of the notches 10a formed in the back surface side of one 10 of the left and the right vertical frame members 10, 12. |
