Patent ID: 6481318
Filing Date: 2002-11-19
Classification: B26D,Y10T

Abstract:
A rotatable cutting knife arrangement, comprising:a rotary body; a plurality of cutting knife inserts; the body including an outer peripheral portion including a plurality of cavities, for at least partially receiving said cutting knife inserts, with the cavities defined by said adjacent cavity walls for supporting adjacent faces of said cutting knife inserts; said outer peripheral portion includes a plurality of holder devices attached to said body, said holder devices including a bottom surface facing toward the center of the rotary body; said cutting knife inserts comprising blocks of cutting material having a generally rectangular cross-sectional shape and forming cutting edges at each of the corners of the rectangular cross-section; said cavity walls aligned along non-radial, non-tangential directions with respect to said rotary body so as to align said cutting knife insert, with a second cutting edge outwardly protruding for cutting operations; a threaded fastener releasably securing said cutting knife inserts to said body is as to be held in contact with said cavity walls and cooperating with said cutting knife insert and said body cavities so as to allow said cutting knife inserts to be removed and rotationally indexed to present a different outwardly protruding cutting edge; a plurality of bias members between said holder devices and said body to resiliently support said cutting knife inserts; and said cavity walls defining a gap to receive corner portions of said cutting knife inserts, so as to maintain said corner portions of the cutting knife inserts out of contact with the support surfaces.