| 摘要 |
PROBLEM TO BE SOLVED: To provide a straightening gutter by which foreign matters in a game ball flow can be effectively removed in a pachinko game machine. SOLUTION: This straightening gutter 14 includes ball passages 19, 20 for arranging and supplying game balls used in a pachinko game machine from the upstream side toward the downstream side. A plurality of through holes 33 in a size not to pass a game ball are provided at a prescribed interval in the longitudinal direction of the ball passages 19, 20 onto both border parts between the bottom faces and the inner wall faces of the ball passages 19, 20 in the straightening gutter. COPYRIGHT: (C)2006,JPO&NCIPI
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