High speed planer head
AssigneeKey Knife, Inc.
InventorBradley R. Stager
Life of this patent
Estimating the term…
Abstract
A high speed planer head. A threaded member having a frustoconical portion wedges against a knife, to clamp a knife to a hub for rotating the knife about an axis of revolution. The knife has a front and back side, two cutting edges and mirror image symmetry about a mirror plane passing through the knife. To cut both a planar face and two opposed, radiused corners, the cutting edges include respective linear face-cutting portions disposed between two concave, arcuate corner-cutting portions.
Claims15
A knife for a cutting apparatus adapted to rotate the knife about an axis of revolution, the knife having a front and back side, the front side for facing in the direction of rotation, two cutting edges and mirror image symmetry about a first mirror plane passing through said knife, wherein said cutting edges include respective linear face-cutting edge portions disposed between two concave, arcuate corner-cutting edge portions, wherein said mirror plane is parallel to said face-cutting edge portions, and wherein said knife has an attack relief angle γ that is fixed over at least said face-cutting edge portion and said corner-cutting portions.
Dependencies are inferred from the claim text.