| 摘要 |
PURPOSE:To reduce abrasion of an elastic wire member and elongate the life thereof by a constitution wherein a force, generated by the elastic wire member, being bent into a semi-circular configuration and energizing a partitioning plate so as to abut against a roller, is received by two places of a column groove and the elastic wire member as well as the penetrating hole of a cylinder part and the column. CONSTITUTION:A partitioning plate groove 8, into which the partitioning plate 7 is inserted to slide therein, is provided at the outer periphery of the cylinder part 6 so as to penetrate the part partly, while the elastic wire member 9 for pushing the partitioning plate 7 from the outside of the cylinder part 6 against the roller 5 is provided. The elastic wire member 9 is bent into the semi-circular configuration, as shown by the diagram, so as to be located along the outer periphery of the cylinder part 6, and the one end thereof is engaged within an adaptor hole 7a provided on the partitioning plate 7. By the rotation of the roller 5, the partitioning plate 7 is reciprocated and the elastic wire member 9 is deformed properly, at the same time, the force generated by the wire member 9 is received at the two places of a leg 10 and the groove 13 of the column 12 as well as the column 12 and the penetrating hole 11 of the cylinder part 9 by sliding. According to this constitution, the abration of the elastic wire member 9 may be restrained as much as possible and the life thereof may be improved. |
