Patent ID: 8192112

Claim:
A rotary cutter head comprising a body mounted for rotation about an axis of rotation, at least one pocket defined in a periphery of the body for releasably receiving a cutting insert, said cutting insert having a front surface adapted to be urged against a corresponding frontal abutting surface of said pocket relative to a direction of rotation of said rotary cutter head, and a back clamping member profiled according to a cutting edge profile of the cutting insert and provided at the back of said cutting insert for releasably clamping said cutting insert against said frontal abutting surface, the clamping action of said back clamping member being exerted generally in a forward direction that is in a direction opposite to the cutting pressure transferred to the cutting insert during operation, and further comprising at least one biasing member urging said cutting insert in an outward direction away from the axis of rotation against an abutment structure provided on said frontal abutting surface.