Vehicle transmission gear assembly

Patent metadata

Field	Value
Publication number	US-9556946-B2
Application number	US-201313856192-A
Country	US
Kind code	B2
Filing date	Apr 3, 2013
Priority date	Apr 4, 2012
Publication date	Jan 31, 2017
Grant date	Jan 31, 2017

Abstract

A transmission gear assembly, including: at least two gearwheels fitted with teeth on their periphery and connected together. One of the at least two gearwheels is a main gearwheel. Another of the at least two gearwheels is an auxiliary gearwheel. The teeth of the auxiliary gearwheel are formed resilient in a radial direction.

First claim

I claim:

1. A gear assembly, comprising:
a gearwheel having radially external teeth and a peripheral recess about a circumference;
a spring wire ring having support portions supportably contacting the groove, and antirattle portions matching a profile of and extending radially outward farther than the teeth and being radially resilient, the ring having fewer antirattle portions than the gearwheel has teeth; and
a second gearwheel having radially external second teeth that contact the antirattle portions and the teeth.

2. The gear assembly of claim 1 , wherein the second teeth compress the antirattle portions radially upon contact.

3. The gear assembly of claim 1 , wherein the second teeth do not contact the support portions.

4. The gear assembly of claim 1 , wherein the recess has a lip for axially retaining the first portions in the recess.

5. A gear assembly, comprising:
a first gear having radially external teeth and a peripheral recess about a circumference; and a spring wire ring having support portions supportably contacting the groove, and antirattle portions matching a profile of and extending radially outward farther than the teeth and being radially resilient, the ring having fewer antirattle portions than the first gear has teeth; and
a second gear having radially external second teeth that contact the antirattle portions and the teeth.

6. The gear assembly of claim 5 , wherein the second teeth compress the antirattle portions radially upon contact.

7. The gear assembly of claim 5 , wherein the second teeth do not contact the support portions.

8. The gear assembly of claim 5 , wherein the recess has a lip for axially retaining the first portions in the recess.

Assignees

• Ford Global Tech Llc

Inventors

• Bertram Ulrich

Classifications

• F16H55/18 Primary

  Special devices for taking up backlash {(for gears having orbital motion F16H1/2863)} · CPC title

• Y10T74/19898

  Backlash take-up · CPC title