Patent ID: 6120217
Filing Date: 2000-09-19
Classification: B23F,Y10T

Abstract:
A cutting tool for producing toothed workpieces, said cutting tool comprising:a cutter body member having a generally circular shape, a front surface, a back surface and an axis of rotation, said cutter body member having an outer portion comprising a plurality of individual projections arranged spaced from one another about said cutter body member, the space between successive projections defining receiving slots for cutting blades,said individual projections each further comprising an outer surface with at least one said outer surface including a key projecting outward from said outer surface,a clamping ring extending about said cutter body member, said clamping ring including at least one keyway with said key on said at least one outer surface being positioned in said at least one keyway,at least one cutting blade positioned in at least one of said blade receiving slots,wherein each of said blade receiving slots comprises opposing first and second side surfaces and an inner end portion, said inner end portion having a pair of angled mounting surfaces, one of said mounting surfaces extending from said first side surface and the other of said mounting surfaces extending from said second side surface with said angled mounting surfaces extending toward one another, each of said angled mounting surfaces being oriented at an angle of less than 90 degrees with respect to their respective side surface, and,wherein, with respect to the direction of cutter rotation, said first side surface precedes said second side surface and wherein the angle between said first side surface and its respective angled mounting surface is larger than the angle between the second side surface and its respective angled mounting surface.