| 摘要 |
PROBLEM TO BE SOLVED: To prevent the sticking of dust to a pattern belt and deploy a proper pattern combination game including the stable movement of the pattern belt and the accurate detection stop display. SOLUTION: Concave relief recesses for evading the contact with detection marks 30, 30a portions arranged at the required positions of a pattern belt 28 are formed at the required positions on the outer peripheries of a main pulley 19 and a driven pulley 20 in a rotation driven control mechanism 16. The rotation drive control mechanism 16 is provided with a dust removing member 75 capable of being properly brought into contact with the installation portions of the detection marks 30, 30a of the pattern belt 28 when the pattern belt 28 suspended on the rotation drive control mechanism 1 6 is rotatively moved in the required direction. |
