| 摘要 |
PURPOSE:To permit the stable traveling of an ink-donner-film by installing flanges made of magnetic material onto the both edge parts of a shaft for supporting a paper core onto which the film is taken-up and installing a magnetic body in the vicinity of the outer periphery part of each flange, thus obtaining a tension resistance in non-contact state. CONSTITUTION:A long ink-donner-film 1 used for a thermal copying recorder is taken-up onto a paper core 2 installed in demountable ways onto a shaft 3. A paper-core supporting apparatus is constituted of the shaft 3 having a small- diameter part 22 at the both edges of a large diameter part 21 onto which the paper core 2 is installed, flange 23 which is fitted onto the small-diameter part 22 and fixed through the screwing of a nut 24, magnetic plate 31 which consists of a permanent magnet arranged under each flange 23, and so on. The magnetic attraction force of the magnetic plate 31 acts at least onto the outer periphery part of the flange 23 as magnetic part, and a tension resistance can be obtained in non-contact state. |
