CLAMP MECHANISM AND EDGE REPLACEMENT TYPE TOOL

PROBLEM TO BE SOLVED: To provide a clamp mechanism and an edge replacement type tool superior in reliability, without loosening a fixation of a sheet member even when a large load is applied to the sheet member in cutting, and by increasing rigidity of an insert installing seat for installing the sheet member and a cutting insert. SOLUTION: The sheet member 9 is interposed between a seating surface 7a of the insert installing seat 7 of a tool body 2 and the cutting insert 12 fixed to the insert installing seat by a clamp screw 14. A projecting part 8 is formed on the seating surface, and a through-hole 9a fitted to the projecting part is formed in the sheet member. A male screw member 11 is arranged for engaging with an outer peripheral wall of the sheet member. The through-hole of the sheet member is fitted to the projecting part, and the male screw member engages with the outer peripheral wall of the sheet member in this state, and a part of the set member is sandwiched and fixed by the male screw member and the projecting part. COPYRIGHT: (C)2011,JPO&INPIT