| 摘要 |
PROBLEM TO BE SOLVED: To provide a cutting machine which suppresses the occurrence of a resonance by the rotation of a cutting edge even when the widths of a blade case and a safety cover are enlarged in order to secure arrangement spaces for an irradiation device with laser beams etc. SOLUTION: Ventilation holes 31-40 for making an air flow generated near the end part 20e of an outlet are formed in the rotation direction of the cutting edge 13 in the side wall 20b of the safety cover 20. COPYRIGHT: (C)2007,JPO&INPIT
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