Rotary cutter knife
AssigneeKimball International, Inc.
InventorsJ. Richard Slayton, Paul Douglas Nalley
Life of this patent
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Abstract
A rotary cutter knife in which a body is provided which is made up of coaxial discs in adjacent relation. Each disc has cutting edge portions distributed about the periphery thereof and in one relatively rotated position of the discs the cutting edge portions align in the axial direction thereby positioning the cutting edge portions for easy sharpening. In another rotated position of the discs, the cutting edge portions are staggered and the cutting load on the cutter knife is thereby distributed circumferentially during working operations of the cutter knife. Cooperating elements of keying means are provided for keying the discs in the two relatively rotated positions thereof.
Claims8
In a rotary cutter knife having peripheral cutting edge means;
- a plurality of discs each having a respective portion of said cutting edge means formed on the periphery, means for supporting said discs in coaxial adjacent relation, means for positioning said discs in a first relatively rotated position in which said portions of said cutting edge means are aligned for sharpening all of said portions at the same time, and means for positioning said discs in a second relatively rotated position in which said portions of said cutting edge means are spaced in the circumferential direction of said cutter knife to distribute the cutting load when said cutter knife rotates in cutting relation to a workpiece.
Dependencies are inferred from the claim text.