JPH0210070Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Field of Industrial Application) The present invention relates to a rear fender structure for a motorcycle.

(Prior art) In motorcycles that have heat generating elements such as an engine and a radiator disposed in the body frame between the front and rear wheels, and are equipped with a rear fender that covers the upper part of the rear wheel, hot air from the engine or radiator is dissipated by the running wind. It is known that a plurality of slits are formed in the front part of the rear fender in order to efficiently discharge the water out of the vehicle body.

(Problem that the invention aims to solve) However, such slits originally have a small opening area, and in order to prevent rainwater from entering the engine side from the rear wheels, the opening edges of the slits are set at a certain angle. Because of the wing portion provided, conventional slits were unable to efficiently discharge hot air from heat generating elements such as the engine and radiator to the outside of the vehicle body.

The present invention was devised in view of the above circumstances, and the purpose of the present invention is to efficiently exhaust hot air from the heating element to the outside of the vehicle body, and to drain rainwater from the rear wheels toward the engine side. An object of the present invention is to provide a rear fender structure for a motorcycle that can prevent the intrusion of foreign substances.

(Means for Solving the Problem) In order to achieve the above-mentioned object, the present invention provides an opening with a relatively large area in the part of the rear fender facing the engine side, and has a width larger than that of the opening. A flattened shielding plate is provided, and the shielding plate is attached to the back side of the rear fender so as to be spaced apart from the edge of the opening, cover the opening, and touch the front and rear of the opening. .

(Embodiment) A preferred embodiment of the present invention will be described below with reference to the accompanying drawings.

FIG. 1 is a side view of the motorcycle, and FIG. 2 is a side view of the rear fender portion.

Reference numeral 1 denotes a vehicle body frame, and a front wheel 3 is disposed at the front of the vehicle body frame 1 via a front fork 2, and a rear wheel 5 is disposed at the rear via a rear fork 4, and the front wheel 3 is steered by a handle 6.

The vehicle body frame 1 includes a main pipe 12 extending rearward from the upper part of the head pipe 11, a center pipe 13 extending downward from the rear of the main pipe 12, and a lower pipe 14 extending forward from the lower part of the center pipe 13. A seat rail 15 extends rearward from the rear part of the main pipe 12, and the rear part of the seat rail 15 and the center pipe 13
The rear stay 16 is placed behind the intermediate portion.

The main pipe 12, the center pipe 13,
Engine 2 is in the space surrounded by the lower pipe 14.
1. A radiator 22 and other auxiliary equipment are arranged, and an upper cowl 23 and a lower cowl 24 are attached to the vehicle body frame 1 so as to cover them.

A fuel tank 31 is provided on the main pipe 12, a seat 32 is provided on the seat rail 15, a side cover 33 is provided on the side of the vehicle body frame 1 below the seat 32, and a rear fender 34 is provided above the seat 32. It is provided below so as to cover the upper part of the rear wheel 5.

In the front part of the rear fender 34 facing the rear of the engine 21, there is a fourth section shown in a cross-sectional side view in FIG.
As shown in the sectional view taken along the - line in FIG. 3, a relatively large rectangular opening 41 is provided. On the back side of the rear fender 34, a shielding plate 4 is attached to the front and rear portions of the edge defining the opening 41 via screws 42.
3 will be provided.

The shielding plate 43 has a shielding surface 43a having a curved cross section, and the shielding surface 43a has a longitudinal length and a horizontal width larger than the opening 41, and is spaced apart from the edge of the opening 41 by a distance S. A shielding surface 43a is arranged on the back side of the rear fender 34 so as to cover the opening 41.

Since this embodiment is configured as described above, hot air from the engine 21, radiator 22, etc. is discharged from the opening 41 to the outside of the rear fender 34 along with the running wind.

Since the area of the opening 41 can be ensured larger than the area of a conventional slit, the air exhaust efficiency can be increased, and the cooling efficiency of the engine 21 and the radiator 22 can be increased.

Further, the shielding plate 43 can prevent rainwater splashing from the rear wheel 5 from entering the engine 21 side through the opening 41.

Furthermore, the present invention, which is composed of the opening 41 and the shielding plate 43, has a simpler structure than the conventional slit having wings, and can reduce costs.

(Effect of the invention) As is clear from the above explanation, according to the invention,
Hot air from heating elements such as the engine and radiator can be efficiently discharged to the outside of the vehicle body, and foreign matter such as mud and water from the rear wheels can be effectively prevented from entering the engine side during driving.

[Brief explanation of the drawing]

FIG. 1 is a side view of the motorcycle, FIG. 2 is a side view of a rear fender portion, FIG. 3 is a sectional side view showing the mounting structure of the shielding plate, and FIG. 4 is a sectional view taken along the line -- in FIG. 3. In the drawing, 1 is the body frame, 3 is the front wheel, 5 is the rear wheel, 21 is the engine, 34 is the rear fender, 41
is an opening, and 43 is a shielding plate.

Claims (1)

[Scope of utility model registration request] In a motorcycle having an engine mounted on a body frame portion between the front and rear wheels and having a rear fender that covers above the rear wheel, an opening having a relatively large area is provided in a portion of the rear fender facing the engine side, and the opening has a relatively large area. A shielding plate is provided with a width larger in the front and rear and left and right sides than the rear fender, and the shielding plate is spaced from the edge of the opening on the back side of the rear fender, covers the opening, and is in contact with the front and rear of the opening. A rear fender structure for a motorcycle characterized by having a plate attached.