Helical tooth broach
AssigneesNachi-Fujikoshi Corp., Aisin Aw Co., Ltd.
InventorsKazuyuki Nakamura, Yasushi Nogawa, Hidetaka Nakae, Katsuhiko Nishimura
Life of this patent
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Abstract
A helical gear tooth broach is provided which does not require to clamp strongly the work to be broached by a special clamping device, and which does not perform an intermittent cutting action against the work. A gear tooth broach is provided having an elongate body having a series of axially aligned and spaced teeth disposed thereon. The direction of tooth spaces or traces of the teeth in a longitudinally extending helical alignment and the direction of the gullets of the teeth in a general side by side circumferentially extending helical arrangement are both oriented to the same hand of helix angle.
Claims2
A gear tooth broach for broaching internal helical gears or splines comprising an elongate body having a series of axially aligned and spaced teeth disposed thereon, tooth spaces or traces of the teeth in a longitudinally extending helical alignment along an axis of the body and gullets of the teeth in a general side by side circumferentially extending helical arrangement,
- characterized in that a first direction of the tooth spaces or traces of the teeth in the longitudinally extending helical alignment and a second direction of the gullets of the teeth in the general side by side circumferentially extending helical arrangement are both oriented to the same hand of helix angle (right-upward or left-upward oriented).
Dependencies are inferred from the claim text.