| 摘要 |
PROBLEM TO BE SOLVED: To prevent an inserted edge from displacing by providing a bridge part connecting a clamp jaw to the main body part of a cutting tool and the other narrow bridge part generally extending toward a clamp face on the rear side. SOLUTION: A first narrow bridge part 44 is generally positioned between a hole 24 and the upper side 34 of a clamp jaw 20. A second narrow bridge part 46 is generally extended toward a second clamp face 42, and positioned between a recessed part 40 and the hole 24. The two narrow bridge parts 44, 46 provide two separated elastic rotary shafts P,Q. A first clamp face 38 is elastically displaced around the elastic rotary shaft P, and the second clamp face 42 can be independently displaced around the elastic rotary shaft Q. As a result, the first clamp face 38 applies first force onto the front part of the upper face on an inserted edge 18, and the second clamp face 42 applies second force onto the rear part of the upper face of the inserted edge. |
