PROBLEM TO BE SOLVED: To provide a cylindrical cutting device with a step-free slit part.;SOLUTION: A cutting device includes: a cylindrical body 12 for disposing a web W along the lower peripheral surface thereof; a cutter moving part 18 disposed in an axial direction inside the cylindrical body 12; a slit 14 provided in the axial direction of the lower peripheral surface of the cylindrical body 12; a cutter 16 for the web W which is movable in the axial direction with the cutter moving part 18 and projects from the slit 14; and a height control part 82 for pulling up the lower peripheral surface on a front side of the slit 14.;SELECTED DRAWING: Figure 5;COPYRIGHT: (C)2019,JPO&INPIT
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