| 摘要 |
PROBLEM TO BE SOLVED: To securely fix a winding core 1 to a winding shaft 2 and after the winding is completed, positively release a wound product from the winding core 1 in a winding core fixing device of a winding device winding up a web material onto the winding core 1. SOLUTION: A first piston 15 is inserted into the inner hole 17 of a first cylinder 16. The first piston 15 is disposed on one side of a slider 5 in the axial direction of the winding shaft 2, faces the end face of the slider, and is engaged with each other. Moreover, a second piston 20 is inserted into the inner hole 21 of a second cylinder. The second piston 20 is disposed on the other side of the slider 5 in the axial direction of the winding shaft 2, faces the end face of the slider, and engaged with each other. Accordingly, the winding core 1 can be fixed to the winding shaft 2 by moving the slider 5 by the first piston 15 and pressing each tip 9 against the inner peripheral surface of the winding core 1. In addition, the winding core 1 can be released from the tips 9 by pushing back the slider 5 by the second piston 20. COPYRIGHT: (C)2006,JPO&NCIPI
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