Wheel mounting structure

Patent metadata

Field	Value
Publication number	US-10752048-B2
Application number	US-201815945814-A
Country	US
Kind code	B2
Filing date	Apr 5, 2018
Priority date	Apr 18, 2017
Publication date	Aug 25, 2020
Grant date	Aug 25, 2020

Abstract

A spigot joint part of a wheel hub has a cylindrical outer peripheral surface. The wheel mounting structure includes a collared member having a collar part to be press-fitted into and fixed to the spigot joint part, which is formed at a position away from an end part of the spigot joint part by a predetermined distance to protrude outward in a radial direction of the collared member. An annular protruding part is formed on a part of an inner peripheral surface of a center hole of a wheel to protrude toward a center of the wheel. In a state where the wheel is fixed to the flange part by using hub bolts, a fitting part and the annular protruding part are spigot-fitted. In a state where the hub bolts are removed, the annular protruding part is locked by the collar part.

First claim

What is claimed is:

1. A wheel mounting structure configured to mount a wheel to a wheel hub for a vehicle,
the wheel hub comprising:
a hub axle part;
a flange part being a disc-shaped part extending from the hub axle part in parallel to a plane perpendicular to a rotation axis of the wheel hub, the flange part having a fixing surface configured to fix the wheel by using a plurality of hub bolts on a vehicle-body outer side of the vehicle; and
a spigot joint part being a part having a cylindrical shape with the rotation axis as a center axis, which is formed to protrude from the hub axle part to the vehicle-body outer side with respect to the flange part,

wherein the spigot joint part has a cylindrical outer peripheral surface with the rotation axis as a center axis and a cylindrical inner peripheral surface with the rotation axis as a center axis.
wherein a collared member being a member having a cylindrical shape, which has a collar part formed to protrude outward in a radial direction of the collared member, is inserted into and fixed to the cylindrical inner peripheral surface from the vehicle-body outer side, and the collar part is formed at a position separated from an end part of the spigot joint part by a predetermined distance when the collared member is inserted into and fixed to the spigot joint part,
wherein the wheel has:
a center hole formed in a center of the wheel to allow the spigot joint part to be inserted therethrough;
a plurality of bolt holes formed around the center hole to allow the plurality of hub bolts to be inserted therethrough; and
an annular protruding part formed on a part of an inner peripheral surface of the center hole, which is positioned on a hub mounting surface side of the wheel, to protrude toward the center of the wheel,

wherein a fitting part having the cylindrical outer peripheral surface and the annular protruding part are spigot-fitted in a state where the wheel is fixed to the flange part by using the plurality of hub bolts, and
wherein the annular protruding part is locked by the collar part in a state where the fixing of the wheel by using the plurality of hub bolts is released.

2. A wheel mounting structure according to claim 1 , wherein the predetermined distance is set so as to be equal to a length of the annular protruding part in a direction of the rotation axis.

3. A wheel mounting structure according to claim 1 , wherein a stepped part is formed at a vehicle-body inner side end of the cylindrical inner peripheral surface, and the predetermined distance is set by bringing the collared member into abutment against the stepped part.

4. A wheel mounting structure according to claim 2 , wherein a stepped part is formed at a vehicle-body inner side end of the cylindrical inner peripheral surface, and the predetermined distance is set by bringing the collared member into abutment against the stepped part.

5. A wheel mounting structure according to claim 1 , wherein the collared member is press-fitted into and fixed to the cylindrical inner peripheral surface.

6. A wheel mounting structure according to claim 2 , wherein the collared member is press-fitted into and fixed to the cylindrical inner peripheral surface.

7. A wheel mounting structure according to claim 3 , wherein the collared member is press-fitted into and fixed to the cylindrical inner peripheral surface.

8. A wheel mounting structure according to claim 4 , wherein the collared member is press-fitted into and fixed to the cylindrical inner peripheral surface.

9. A wheel mounting structure according to claim 1 , wherein the collared member comprises a grease cap.

10. A wheel mounting structure according to claim 2 , wherein the collared member comprises a grease cap.

11. A wheel mounting structure according to claim 3 , wherein the collared member comprises a grease cap.

12. A wheel mounting structure according to claim 4 , wherein the collared member comprises a grease cap.

13. A wheel mounting structure according to claim 8 , wherein the collared member comprises a grease cap.

Assignees

• Toyota Motor Co Ltd

Inventors

• Nakagawa Kenji

Classifications

• B60B23/04 Primary

  by bayonet joint, screw-thread, or like attachments · CPC title

• B60B23/10

  arranged axially · CPC title

• B60B7/0013 Primary

  Hub caps · CPC title

• B60B25/20

  Arrangement of screws, bolts, or shouldered pins · CPC title

• B60B27/02

  adapted to be rotatably arranged on axle · CPC title