| 摘要 |
PROBLEM TO BE SOLVED: To facilitate fabrication of the induction gutter and enable to make its installation area small. SOLUTION: This induction gutter 30 is disposed from a downstream end of right and left collection gutters 14 toward a ball lift feeder 3 in a direction orthogonal to the right and left collection gutters 14, and is provided with partition walls 31 and the downstream end of the collection trough 14 as means for approximately uniformly feeding balls, which flow from the right and left collection gutters 14 into the induction gutter 30, approximately uniformly in the entire cross direction of the induction gutter 30. Thereby, the balls which have flowed down through the collection gutters can be fed approximately uniformly in the entire cross direction of the induction gutter 30 without concentrating in the central or end parts in the cross direction of the induction gutter 30, and the balls are approximately uniformly fed to the ball lift feeder 3, so that the capacity of the ball lift feeder 3 can be utilized to the maximum. |
