| 摘要 |
PURPOSE:To position a film leader part sufficiently on one side and to prevent a slipped volute phenomenon by providing a flange part to the upper part of a spool, and pressing the film leader part almost at its upper edge part by a roller and almost at the lower edge part by a feed-out side roller. CONSTITUTION:A film 12 is guided by a guide plate 8 and pressed in between a roller 10a and the spool 3. A couple of forces is obtained by the force 14 by the roller 10a and spool 3 and a force 15 applied to perforations by a sprocket 4 and the front end of the film 12 faces down. Further, the film is pressed in between a roller 11c and the spool 3 and positioned on one side securely when the lower side of the leader part is driven to be pressed in between the following film and spool 3 at the roller 10a. A slip occurs between films to make the peripheral speed of the spool 3 larger than that of the sprocket 4, and the film which is loosely wound is flexed and elevated gradually in contact with the spool 3. The film, however, is restrained by the flange 3a and wound stably. |
