Patent ID: 6964210
Filing Date: 2005-11-15
Classification: B23F,F16H,Y10T

Abstract:
1. A gear for mating with a mating gear having a plurality of mating-gear teeth each having a mating-gear tooth profile conjugate to a mating-gear basic-cutter tooth profile including a mating-gear basic-cutter tooth-profile addendum, a mating-gear basic-cutter tooth-profile dedendum, and a mating-gear basic-cutter tooth-profile transition zone between the mating-gear basic-cutter tooth-profile addendum and the mating-gear basic-cutter tooth-profile dedendum, the gear comprising a plurality of gear teeth each having a gear tooth profile comprising: a gear tooth-profile addendum; a gear tooth-profile dedendum; and a gear tooth-profile transition zone between the gear tooth-profile addendum and the gear tooth-profile dedendum, wherein the gear tooth profile is conjugate to a gear basic-cutter tooth-profile intersecting a gear basic-cutter pitch line at a gear basic-cutter pitch point, the gear basic-cutter tooth profile comprising: wherein the gear basic-cutter tooth-profile has a predetermined gear basic-cutter tooth-profile half pitch relief at the gear basic-cutter pitch line and continuity of profile and continuity of slope at the gear basic-cutter tooth-profile addendum point, wherein the gear basic-cutter tooth-profile addendum has an addendum portion having an addendum-portion shape and an addendum-portion thickness, the addendum portion extending from the tip point to the addendum point, the addendum-portion shape at least substantially identical to a corresponding portion of a reference addendum of a reference gear basic-cutter tooth profile further comprising a linear reference transition zone between the reference addendum and a reference dedendum having a reference-dedendum thickness, the reference addendum having a reference-addendum thickness, the addendum-portion thickness less than the reference-addendum thickness by about twice the predetermined half pitch relief, and wherein the gear basic-cutter tooth-profile dedendum has a dedendum portion having a dedendum-portion shape and a dedendum-portion thickness, the dedendum portion extending from the limit point to the pitch line, the dedendum-portion shape at least substantially identical to a corresponding portion of the reference dedendum, the dedendum thickness more than the reference-dedendum thickness by about twice the predetermined half pitch relief.