Straight Bevel Gear with Spherical Involute Configuration

Patent metadata

Field	Value
Publication number	US-2017114882-A1
Application number	US-201715399890-A
Country	US
Kind code	A1
Filing date	Jan 6, 2017
Priority date	Aug 13, 2014
Publication date	Apr 27, 2017
Grant date	—

Abstract

A straight bevel gear having a gear body that includes a first set of gear teeth and at least one web. The set of gear teeth may have a spherical involute configuration. The web may extend between adjacent members of the set of gear teeth such that the web may be completely and continuously curved in multiple directions.

First claim

What is claimed is:

1 . A straight bevel gear comprising:
a gear body that includes:
a hole disposed along an axis;
a set of gear teeth arranged around the hole, wherein members of the set of gear teeth are provided with a spherical involute configuration; and
a first web that is disposed between the hole and an outside diameter of the set of gear teeth, wherein the first web extends between two adjacent members of the set of gear teeth such that the first web is completely curved in a plane that includes the axis and that bisects a gap between the two adjacent members of the set of gear teeth.

2 . The straight bevel gear of claim 1 wherein the first web extends along a continuous nonlinear curve between two adjacent members of the set of gear teeth and substantially perpendicular to the plane.

3 . The straight bevel gear of claim 1 wherein the first web extends along a parabolic curve in the plane.

4 . The straight bevel gear of claim 1 wherein gear body further comprises a front surface that extends around and at least partially defines the hole, wherein the first web extends from the front surface.

5 . The straight bevel gear of claim 4 wherein each member of the set of gear teeth has a gear tip surface that extends from the front surface to the outside diameter, wherein the gear tip surface is nonlinear from the front surface to the outside diameter.

6 . A straight bevel gear comprising:
a gear body that includes:
a hole disposed along an axis;
a set of gear teeth arranged around the hole, wherein members of the set of gear teeth are provided with a spherical involute configuration;
a first web that is disposed between the hole and an outside diameter of the set of gear teeth, wherein the first web extends between two adjacent members of the set of gear teeth such that the first web is completely curved in a plane that includes the axis and that bisects a gap between two adjacent members of the set of gear teeth; and
a second web disposed proximate the outside diameter, wherein the second web extends between two adjacent members of the set of gear teeth such that the second web is completely curved in the plane.

7 . The straight bevel gear of claim 6 wherein the first web extends to the second web.

8 . The straight bevel gear of claim 6 wherein the second web extends along a continuous nonlinear curve between two adjacent members of the set of gear teeth and substantially perpendicular to the plane.

9 . The straight bevel gear of claim 6 wherein the second web extends along a parabolic curve.

10 . The straight bevel gear of claim 6 wherein the first web extends along a first curve in the plane, the second web extends along a second curve in the plane, and the first curve has a curvature that differs from the second curve.

Assignees

• Arvinmeritor Technology Llc

Inventors

• Hirao Wagner
• Yamada Silvio Masaaki

Classifications

• F16H55/0813 Primary

  Intersecting-shaft arrangement of the toothed members · CPC title

• F16H55/17 Primary

  Toothed wheels (worm wheels F16H55/22; chain wheels F16H55/30) · CPC title

• F16H55/08 Primary

  Profiling · CPC title

• F16H55/22

  for transmissions with crossing shafts, especially worms, worm-gears · CPC title