| 摘要 |
PROBLEM TO BE SOLVED: To provide a disc cutter capable of easily changing a disc ring put on the disc cutter at a low cost. SOLUTION: The disc cutter 1 is so constituted that the disc ring 10 can be put on the circumference of a hub 4 in a detachable manner. A conical surface 4a is formed on the circumference of the hub 4, and an engaged surface 10a fitted to the conical surface 4a of the hub 4 is formed on the inside circumference of the disc ring 10. The disc ring 10 is so pressed that the conical surface 4a is press-contacted to the engaged surface 10 with a clamping nut 11 screwed in a male screw section 4m of the hub 4. |
