| 摘要 |
<p>PROBLEM TO BE SOLVED: To prevent a winding core from being carelessly moved in a longer direction of a rotary drive shaft with respect to the rotary drive shaft even if a sheet having a small band width is wound or unwound with a weak tension.SOLUTION: A winding core support device in which a toric ring 7 is rotatably fitted into a periphery of a collar body 3 to which a hollow winding core A is extrapolated, and the ring 7 is provided with engagement means which is moved in a radial outer direction of the collar body 3 by the rotational drive of the collar body 3 and performs pressure-support of an inner surface of the winding core. In the device, plural pressure-contacting mechanisms 20, which energizes and presses a presser body 21 onto the inner surface of the winding core, are provided onto a periphery of the ring 7 with predetermined intervals in a circumferential direction, and a contact surface 21a of the presser body 21 contacting with the inner surface of the winding core is so formed as to be a flat surface in a direction along which the winding core is extrapolated.</p> |
