| 摘要 |
PURPOSE:To realize the automatic rewinding with no slackening by a method wherein a plurality of supporting shafts, onto which rolls are set, and rollers, which are interlocked with a motor in order to forward rolled material, and turned to be interlocked with one another only when the rolled material is rewound in an automatic copier or a camera. CONSTITUTION:The rolls 1 and 2 are set onto respective supporting shafts 5.... When the roll 1 is used, firstly, the leader part 1' of the roll 1 is pinched between upper feed rollers 10 and 10' by rocking a nip lever 27 and secondly, a motor 15 is put into operation to drive the rollers 10 and 10' in order to forward the rolled material in the roll 1 and at the same time exposure operations are performed in succession. When the roll 2 is used, firstly, the motor 15 is put into reverse operation and the reverse operation of the motor 15 causes a one-way clutch 12 to turn ON and consequently the supporting shafts 5 and 5 to turn in reverse direction through gears 11 and 9 and as well as a lower one-way clutch 17 to release. In this case, because the feeding speed of the roller 10 is rendered to be a little bit slower than the rewinding speed of the supporting shafts 5 and 5, the rolled material is rewound under tension until the cut tip made by a cutter 22 attains to the location indicated with a limit switch 24. |
