Hub built-in type constant velocity joint

Patent metadata

Field	Value
Publication number	US-11787231-B2
Application number	US-202017039537-A
Country	US
Kind code	B2
Filing date	Sep 30, 2020
Priority date	Jun 19, 2020
Publication date	Oct 17, 2023
Grant date	Oct 17, 2023

Abstract

A hub built-in type constant velocity joint may include a plurality of wheel guide coupling portions to which wheel guides are configured to be coupled, and a hub housing which is formed between the wheel guide coupling portions and in which a discharge portion is formed to be stepped with each of the wheel guide coupling portions and configured to discharge foreign materials to the outside.

First claim

What is claimed is:

1. A hub built-in type constant velocity joint comprising:
a plurality of wheel guide coupling portions to which a wheel guide is configured to be coupled; and
a hub housing formed between the plurality of wheel guide coupling portions, wherein the hub housing includes at least one discharge portion formed as a step with each of the plurality of wheel guide coupling portions and configured to discharge foreign materials from an inner space of the hub housing to an outside of the hub housing.

2. The hub built-in type constant velocity joint of claim 1 ,
wherein the plurality of wheel guide coupling portions is formed along an inner circumference of an open surface of the hub housing; and
wherein the at least one discharge portion is formed between the plurality of wheel guide coupling portions along the inner circumference of the open surface of the hub housing and formed as a step with the plurality of wheel guide coupling portions.

3. The hub built-in type constant velocity joint of claim 2 ,
wherein the hub housing further includes a flange to be mounted in a brake disc; and
wherein the at least one discharge portion is formed as a step between the plurality of wheel guide coupling portions to form the inner circumference of the open surface of the hub housing to be concave toward an edge portion of the flange.

4. The hub built-in type constant velocity joint of claim 3 , wherein the at least one discharge portion is formed as a step in a radial direction of the open surface of the hub housing.

5. The hub built-in type constant velocity joint of claim 1 , wherein a number of the plurality of wheel guide coupling portions is equal to a number of the at least one discharge portion.

6. The hub built-in type constant velocity joint of claim 1 , wherein a stopper limiting a depth into which the wheel guide is press-inserted in the hub housing is formed in at least one of the plurality of wheel guide coupling portions.

7. The hub built-in type constant velocity joint of claim 6 , wherein the wheel guide includes:
a wheel mounting portion configured to guide a center ring of a wheel when the wheel is mounted;
a disc mounting portion configured to guide a center ring of a brake disc when the brake disc is mounted; and
a coupling portion configured to be coupled to the plurality of wheel guide coupling portions, wherein the coupling portion is accommodated on the stopper when the wheel guide is press-inserted in the hub housing.

8. The hub built-in type constant velocity joint of claim 7 , wherein the wheel mounting portion and the disc mounting portion are formed as a step with each other.

9. The hub built-in type constant velocity joint of claim 8 , wherein a diameter of the wheel mounting portion is smaller than a diameter of the disc mounting portion.

10. The hub built-in type constant velocity joint of claim 1 , wherein the wheel guide includes:
a wheel mounting portion configured to guide a center ring of a wheel when the wheel is mounted;
a disc mounting portion configured to guide a center ring of a brake disc when the brake disc is mounted; and
a coupling portion configured to be coupled to the plurality of wheel guide coupling portions.

11. The hub built-in type constant velocity joint of claim 10 , wherein the wheel mounting portion and the disc mounting portion are formed as a step with each other.

12. The hub built-in type constant velocity joint of claim 11 , wherein a diameter of the wheel mounting portion is smaller than a diameter of the disc mounting portion.

13. The hub built-in type constant velocity joint of claim 1 , wherein the wheel guide is manufactured by forging molding or press molding.

Assignees

• Hyundai Motor Co Ltd
• Kia Motors Corp
• Hyundai Wia Corp

Inventors

• Yoo Sung Su
• Choi Won Jun
• Kim Hee Il
• Lee Soo Kyoung
• Lee Bum Jae
• Jeong Chang Hee

Classifications

• B60B27/0042 Primary

  characterised by the fixation of the homokinetic joint to the hub · CPC title

• B60B2310/204

  by moulding, e.g. injection moulding, i.e. casting of plastics material · CPC title

• B60B2310/208

  by forging · CPC title

• B60B2900/211

  Soiling · CPC title

• F16D3/223

  the rolling members being guided in grooves in both coupling parts · CPC title