| 摘要 |
PURPOSE:To prevent the formation of roll flaws in the positions which are of problems clinically by fitting two pieces of rollers out of three pieces of rollers for conveyance to eccentric stepped shafts, and grasphing the end parts of films by turning these shafts in accordance with the sizes of the films. CONSTITUTION:Press rollers 32b-32d and conveying rollers 33b-33d are provided to the roller shafts 32a, 33a between side plates 31, 31'. The roller 32d is made larger in diameter than the other two, and thr rollers 32b, 32c are fitted to eccentric fitting shafts which are deviated by 180 deg. from each other. The rollers 33 are driven by a chain 43. In the case of a broad film with such constitution, the roller shaft 32a is turned at a prescribed angle by a motor 37 to bring the rollers 32b and 33b into cotact. When the width of the film is narrow, it brings the rollers 32c and 33c into contact. Thereby, the end parts of the films are grasped at all times and therefore roll flaws do not appear in the positions which are of problems clinically. |
