| 摘要 |
PROBLEM TO BE SOLVED: To easily collect a ball counting device by means of classification by arranging a guide member by which the ball counting device is slid and attached/detached at the curve passage exit of an upper mechanism board disposed on the rear surface of a game board and providing a pressurizing member for pressurizing and holding the device in the upper part of a lower mechanism board. SOLUTION: The upper mechanism board 1 disposed on the rear surface of the game board is provided with a ball tank 2 for temporarily storing balls and a ball arraying rail 3 for arraying the balls supplied from the tank 2. Besides, a ball passage 4 for reducing the fall speed of the ball guided by the rail 3 and reducing impact pressure and a ball discharge device 5 are also arranged. In this case, the guide member 8 consisting of two rails with an L shape cross section is disposed at the lower end of a ball passage support member 6 and the upper end of the ball counting device 7 is fitted there so as to be freely sliding possible in a vertical direction. Besides, the pressurizing member 10 is arranged in the upper part of the lower mechanism board 9 so that the ball counting device 7 fitted to the guide member 8 is held by pressurization by the member 10.
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