| 摘要 |
<p>PURPOSE:To improve the positional accuracy of a cut standby position, by fixing a sleeve at the specified rotating position, fixing a rotary knife at a cut standby position with a coil spring being expanded at its diameter and also a driven side rotary body being fixed at the specified rotating position, and providing a fixture operation means which releases the fixture of the sleeve and driven side rotary body. CONSTITUTION:A driving force is transmitted to a driven side rotary body 11 from a driving side rotary body 10 via a coil spring 12 which is shrinked at its diameter according to the rotation of the driving side rotary body 10, in the state of the fixture of a sleeve 13 and driven side rotary body 11 by a fixture operation means 14 being released, accordingly, a rotary knife 6 is rotated with its driving and a roll paper is cut. Then, after this cutting, the fixture operation means 14 expands the coil spring 12 at its diameter with its fixing the sleeve 13, releasing the driving linkage of the driving side rotary body 10 and driven side rotary body 11 and on the other hand the fixture operation means 14 fixes the driven side rotary body 11 at the specified rotating position. Consequently, the rotary knife 6 can be fixed at the cut standby position.</p> |
