| 摘要 |
PROBLEM TO BE SOLVED: To provide a simply-structured paper flange compatible with a roll sheet having different inner diameters.SOLUTION: A paper flange 1a includes: an inner circumferential member 4a configured to be axially movable in a roll sheet 14 and having a tapered part; and an outer circumferential member 3 moving along a diameter direction of the roll sheet 14 according to the movement of the inner circumferential member 4a. The other end of the outer circumferential member 3 contacts with the inner side of a hollow part of the roll sheet 14 according to the movement of the inner circumferential member 4a. |
