| 摘要 |
PROBLEM TO BE SOLVED: To provide a cutter unit for sheet cutting machines that enables shortening the cutting time by increasing the number of sheets to be cut at a time and further enables restraining power consumption from increasing even when many sheets are cut at a time. SOLUTION: Each of cylindrical rotary blades 111 and 121 of the cutter unit 100 includes a first convex-concave (knurling) 114 which extends from one end to another end by a predetermined length. COPYRIGHT: (C)2010,JPO&INPIT
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