| 摘要 |
PROBLEM TO BE SOLVED: To prevent a game ball from being jammed in a ball pathway device having a place where a plurality of game balls join. SOLUTION: A warp pathway 25 includes: a first ball pathway 30 where a first game ball B1 flows at high speed; a second ball pathway 31 where a second game ball B2 flows at low speed; a joint part 32 where the first ball pathway 30 and the second ball pathway 31 cross each other; a common ball pathway 33 extending downward from the joint part 32; and a hanging door 35 disposed just before the joint part 32 of the second ball pathway 31. The hanging door 35 does not block passage of the first game ball B1 when the first game ball B1 flows down through the first ball pathway 30 only. The hanging door pushes back the second game ball B2 when the first game ball B1 collides with the hanging door on the way of being pushed by the second game ball B2 toward the joint part 32, and lets the first game ball B1 preferentially flow down into the common game ball pathway 33. COPYRIGHT: (C)2011,JPO&INPIT
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