| 摘要 |
PROBLEM TO BE SOLVED: To easily exchange when holding a roll body having a different inner diameter.SOLUTION: A roll body holding device includes: a holding member 201 which has a flange part 202 facing an end part of the roll body, and a boss part 203 to be inserted into a hollow shaft part of the roll body; a first support member 211 to be inserted into the hollow shaft part when holding a roll body having a first inner diameter; and a plurality of second support members 212 to be inserted into the hollow shaft part when holding a roll body having a second inner diameter larger than the first inner diameter. The first support member 211 is arranged in the outer peripheral side of the boss part 203 movably in the shaft direction, and the plurality of second support members 212 can move between a support position capable of being inserted into the hollow shaft part of the roll body and a retreat position for retreating from the support position in a face along the shaft direction. The first support member 211 and the plurality of second support members 212 are connected with each other via a connection member 213, and all of the plurality of second support members 212 move between the support position and the retreat position in association with each other.SELECTED DRAWING: Figure 6 |
