| 摘要 |
PROBLEM TO BE SOLVED: To provide an asymmetrical core easily pulling out a belt-like object wound in a roll, without applying excessive frictional force to the belt-like object. SOLUTION: The asymmetrical core 4 has a joint shaft 7 joined to a rotational shaft 1 of a winding device, and an advancing/retreating shaft 8 attached to the rotational shaft 1 to be capable of advancing/retreating. When the rotational shaft 1 is retreated in the arrow R direction, a tip 3 of the asymmetrical core 4 is separated from a receiving member 5 and enters into an outer tube 6. One gripping surface formed to the joint shaft 7 and the other gripping surface formed to the advancing/retreating shaft 8 face each other to be capable of advancing/retreating, and are tilted with respect to the axial direction of the rotational shaft 1. COPYRIGHT: (C)2010,JPO&INPIT |
