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US 4,065,222 AGranted
Pot broach
AssigneeLear Siegler, Inc.
InventorsEugene J. Bistrick, Axel B. Abrahamsson, Andrew J. Szewczyk, Frank A. McCabe, Richard A. Schlaf, Leonard A. Gabriele
Life of this patent
Estimating the term…
Abstract
A pot broach for cutting small pinions from the solid for use with a pull-up broaching machine, the pot having a multiplicity of solidly abutting flat sided internally toothed cutting rings and internally slotted support rings, with elongated toothed sticks received in the slots of said support rings.
Claims9
A pot broach assembly for cutting a multiplicity of gear teeth on the periphery of an initially cylindrical blank in a single pass, said assembly comprising
- a longitudinally segmental rigid tubular support body,
- a first series of flat sided abutting internally toothed cutting rings, each ring having a multiplicity of cutting teeth arranged in a single circumferentially extending array, and
- a second series of flat sided abutting locating and support rings, said second series rings having internally open, radially extending, circumferentially spaced slots, flat sided elongated sticks received in said slots, said sticks having progressively stepped cutting teeth adapted to remove material from the bottom of tooth spaces cut by the cutting teeth of said first series of rings.
Dependencies are inferred from the claim text.