| 摘要 |
PROBLEM TO BE SOLVED: To provide a ball shooting passage capable of reliably preventing a fraudulent act using a ball with a string.SOLUTION: A ball shooting passage for guiding a ball shot toward a game area of a game board comprises: an outer guide rail disposed on the game board; a belt-like plate inner guide rail disposed on the game area side from the outer guide rail; and a ball return prevention valve extending to the outer guide rail side from the distal end part of the inner guide rail. An inclined part inclined downward toward the front side of the game board is provided on an extension direction end part side of the ball return prevention valve. The ball return prevention valve includes a portion in which the projection height of the ball return prevention valve with respect to the surface of the game board is higher than the projection height of a component disposed on the game board with respect to the surface of the game board.SELECTED DRAWING: Figure 2 |
