Rear wheel structure

Abstract

To provide a rear wheel structure which can easily perform the mounting and dismounting of a rear wheel without causing a fluctuation in a banking angle. In the rear wheel structure which includes a pair of left and right swing arms which are arranged to sandwich a rear wheel, a driving force transmission device is provided for transmitting a driving force to the rear wheel along one swing arm, and a spacer which is arranged on an axle of the rear wheel. A muffler is arranged outside the swing arm on a side opposite to the driving force transmission device. The spacer is arranged between the swing arm on the driving-force-transmission-device-side and the rear wheel for mounting the rear wheel relative to the one swing arm.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

The present invention will become more fully understood from the detailed description given hereinbelow and the accompanying drawings which are given by way of illustration only, and thus are not limitative of the present invention, and wherein:

FIG. 1 is a left side view of an automobile which mounts the rear wheel structure of the present invention thereon;

FIG. 2 is a plan view of an essential part around a rear wheel of a motorcycle shown in FIG. 1;

FIG. 3 is a left side view of an essential part around a spacer of the motorcycle shown in FIG. 1;

FIG. 4 is a horizontal cross-sectional view around a rear axle of the motorcycle shown in FIG. 1;

FIG. 5 is a horizontal cross-sectional view at the time of mounting or dismounting a rear wheel shown in FIG. 4; and

FIG. 6 is a side view showing a spacer of another mode of the present invention.

Claims

1. A rear wheel structure comprising: a pair of left and right swing arms arranged to sandwich a rear wheel;a driving force transmission device for transmitting a driving force to the rear wheel along one swing arm; anda spacer arranged on an axle of the rear wheel, whereina muffler is arranged outside the swing arm on a side opposite to the driving force transmission device, andthe spacer is arranged between the swing arm on the driving-force-transmission-device-side and the rear wheel.

2. The rear wheel structure according to claim 1, wherein the rear wheel structure includes a connection member which crosses the spacer and connects the swing arm and a casing which covers the driving force transmission device, and the spacer is arranged between the swing arm and the casing and has a notch for enabling the detachable mounting of the spacer in a state wherein the swing arm and the spacer are fastened together to the casing by the connection member.

3. The rear wheel structure according to claim 1, wherein a guide member for guiding the spacer is integrally formed with the swing arm.

4. The rear wheel structure according to claim 2, wherein a guide member for guiding the spacer is integrally formed with the swing arm.

5. The rear wheel structure according to claim 1, wherein the driving force transmission device is a shaft drive device which uses a drive shaft; and the drive shaft mounts a universal joint on a front portion thereof and a spherical spline on a rear portion thereof.

6. The rear wheel structure according to claim 2, wherein the driving force transmission device is a shaft drive device which uses a drive shaft; and the drive shaft mounts a universal joint on a front portion thereof and a spherical spline on a rear portion thereof.

7. The rear wheel structure according to claim 3, wherein the driving force transmission device is a shaft drive device which uses a drive shaft; and the drive shaft mounts a universal joint on a front portion thereof and a spherical spline on a rear portion thereof.

8. A rear wheel structure comprising: a pair of left and right swing arms adapted to operatively position a rear wheel for movement relative to a frame;a driving force transmission device for transmitting a driving force to the rear wheel along one swing arm;a spacer operatively position relative to the one swing arm for mounting an axle of the rear wheel relative to the one swing arm; anda muffler arranged outside the swing arm on a side opposite to the driving force transmission device;wherein the spacer is operatively arranged on the one swing arm on the driving-force-transmission-device-side for operatively mounting the rear wheel relative to the one swing arm.

9. The rear wheel structure according to claim 8, wherein the rear wheel structure includes a connection member which crosses the spacer and connects the swing arm and a casing which covers the driving force transmission device, and the spacer is arranged between the swing arm and the casing and has a notch for enabling the detachable mounting of the spacer in a state wherein the swing arm and the spacer are fastened together to the casing by the connection member.

10. The rear wheel structure according to claim 8, wherein a guide member for guiding the spacer is integrally formed with the swing arm.

11. The rear wheel structure according to claim 9, wherein a guide member for guiding the spacer is integrally formed with the swing arm.

12. The rear wheel structure according to claim 8, wherein the driving force transmission device is a shaft drive device which uses a drive shaft; and the drive shaft mounts a universal joint on a front portion thereof and a spherical spline on a rear portion thereof.

13. The rear wheel structure according to claim 9, wherein the driving force transmission device is a shaft drive device which uses a drive shaft; and the drive shaft mounts a universal joint on a front portion thereof and a spherical spline on a rear portion thereof.

14. The rear wheel structure according to claim 10, wherein the driving force transmission device is a shaft drive device which uses a drive shaft; and the drive shaft mounts a universal joint on a front portion thereof and a spherical spline on a rear portion thereof.

15. A rear wheel structure for a vehicle comprising: a pair of left and right swing arms mounted to a vehicle for movement and being arranged to sandwich a rear wheel therebetween;a driving force transmission device for transmitting a driving force to the rear wheel along one swing arm;a spacer mounted on said one swing arm and arranged for retaining an axle of the rear wheel relative to the one swing arm; anda muffler being arranged outside the swing arm on a side opposite to the driving force transmission device;wherein the spacer is arranged on the one swing arm on the driving-force-transmission-device-side for retaining the rear wheel relative to the one swing arm.

16. The rear wheel structure for a vehicle according to claim 15, wherein the rear wheel structure includes a connection member which crosses the spacer and connects the swing arm and a casing which covers the driving force transmission device; and the spacer is arranged between the one swing arm and the casing and has a notch for enabling the detachable mounting of the spacer in a state wherein the swing arm and the spacer are fastened together to the casing by the connection member.

17. The rear wheel structure for a vehicle according to claim 15, wherein a guide member for guiding the spacer is integrally formed with the swing arm.

18. The rear wheel structure for a vehicle according to claim 16, wherein a guide member for guiding the spacer is integrally formed with the swing arm.

19. The rear wheel structure for a vehicle according to claim 15, wherein the driving force transmission device is a shaft drive device which uses a drive shaft; and the drive shaft mounts a universal joint on a front portion thereof and a spherical spline on a rear portion thereof.

20. The rear wheel structure for a vehicle according to claim 16, wherein the driving force transmission device is a shaft drive device which uses a drive shaft; and the drive shaft mounts a universal joint on a front portion thereof and a spherical spline on a rear portion thereof.