Shaft retention apparatus

Patent metadata

Field	Value
Publication number	US-10151352-B2
Application number	US-201514946835-A
Country	US
Kind code	B2
Filing date	Nov 20, 2015
Priority date	Nov 20, 2015
Publication date	Dec 11, 2018
Grant date	Dec 11, 2018

Abstract

A vehicle drive system comprises a first shaft and a second shaft that includes an opening configured to receive the first shaft. A shaft retention apparatus comprises a support component extending axially and along the outer contour of the outer surface of the first shaft and the outer surface of the second shaft, to bridge the two shafts at an intersection thereof. A first clip portion extends from the support component and engages a groove in the outer surface of first shaft and a second axially spaced clip portion extends from the support component and engages a groove in the outer surface of the second shaft, preventing prevent axial movement therebetween.

First claim

What is claimed is:

1. A vehicle drive system comprising:
a first shaft having a first outer surface including a first outer contour;
a second shaft that includes an opening configured to receive the first shaft therein, the second shaft including a second outer surface including a second outer contour that is distinct from the first outer contour;
a shaft retention apparatus comprising:
a support component extending axially and along the first outer surface and the second outer surface to bridge the first shaft and the second shaft at an intersection thereof, the support component including a third contour that substantially matches the first outer contour and the second outer contour;
a first clip portion extending from the support component and configured to engage a groove in the first outer surface of first shaft, the first clip portion including a first end, a second end and an intermediate portion flexibly connecting the first end the second end, the first end being spaced from the second end to define a first discontinuity; and
a second, axially spaced clip portion extending from the support component and configured to engage a groove in the second outer surface of the second shaft to prevent axial movement between the first shaft and the second shaft, the second, axially spaced clip portion including a first end portion, a second end portion and an intermediate portion flexibly connecting the first end portion and the second end portion, the first end portion being spaced from the second end portion to define a second discontinuity.

2. The vehicle drive system of claim 1 , the second shaft further comprising a prop-shaft having a CV joint mounted to an end thereof, the CV joint having an inner joint defining the second shaft.

3. The vehicle drive system of claim 1 , wherein the first and second clip portions have an arcuate configuration.

4. The vehicle drive system of claim 1 , wherein an inner surface of the opening of the second shaft and an outer surface of the first or output shaft are splined or keyed to prevent relative rotation during rotation.

5. The vehicle drive system of claim 1 , wherein the first and second clip portions extend from ends of the support component.

6. The vehicle drive system of claim 1 , wherein the shaft retention apparatus is constructed from one of spring steel or composite.

7. A joint having rotatable shafts comprising:
a first shaft having a first outer surface including a first outer contour;
a second shaft including an opening configured to receive the first shaft therein, the second shaft including a second outer surface including a second outer contour that is distinct from the first outer contour; and
a shaft retention apparatus comprising:
a support component extending axially and along the first outer surface and the second outer surface to bridge the first shaft and the second shaft at an intersection thereof, the support component including a third contour that substantially matches the first outer contour and the second outer contour;
a first clip portion extending from the support component and configured to engage a groove in the first outer surface of first shaft, the first clip portion including a first end, a second end and an intermediate portion flexibly connecting the first end and the second end; and
a second axially spaced clip portion extending from the support component and configured to engage a groove in the second outer surface of the second shaft, to prevent axial movement therebetween, the second axially spaced clip portion including a first end portion, a second end portion and an intermediate portion flexibly connecting the first end portion and the second end portion.

Assignees

• Gm Global Tech Operations Llc

Inventors

• Creek Steven W
• Jones Christopher M

Classifications

• F16D1/116 Primary

  the interengaging parts including a continuous or interrupted circumferential groove in the surface of one of the coupling parts (circlips for retaining hubs on shafts F16B21/18) · CPC title

• B60K17/22 Primary

  characterised by arrangement, location, or type of main drive shafting, e.g. cardan shaft · CPC title

• F16D2003/22323

  Attachments to the shaft of the inner joint member whereby the attachments are distanced from the core · CPC title

• Y10T403/7033

  including a lock or retainer · CPC title

• F16D2001/103

  the torque is transmitted via splined connections · CPC title