JPH10305791A - Cowling structure of motorcycle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent turbulence from being made by the pat of a knee and reduce resistance of wind by providing a projected line which is a rear rising along a line connecting an almost front wheel axle and left and right recesses at the rear part of a fuel tank and is projected to an angle whose rear part gradually becomes larger on the side surface of a cowling. SOLUTION: A projected line 8 which is a rear rising and has a horizontal angle in cross section whose rear side gradually becomes larger is formed integrally with a cowling 2, by roughly aligning to a line M connecting the axle 7 of an almost front wheel 6 and the center 4 of a recess on the rear side surface of a fuel tank 3 on the under cowl side surface of the cowling 2. Thus, wind flowing along the side surface of the cowling 2 is straightened by rear rising wind. A pat 9 of the knee of a rider 5 enters shade of wind straightened by the projected line 8, making of turbulence by the pat 9 of the knee is eliminated and resistance of wind can be reduced. The projected line 8 makes flow of rear rising wind, floating of the front wheel 6 is prevented and an ideal wind flow can be made.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a motorcycle cowling structure.

[0002]

2. Description of the Related Art In a motorcycle, a front portion of a vehicle body is covered with a cowling so as to reduce wind resistance during traveling. As shown in FIG. 6, the cowling is generally set to a size that does not completely cover the rider's head, shoulders, hands, feet, and the like when viewed from the front. This is because if the rider's body is exposed too much, the cowling's rectifying effect will be reduced, and if the rider's body is entirely covered, a vortex will be created on the rear side and the rectifying effect will be reduced, so the rider's body will be reduced. The size is set so that it cannot be completely covered.

By the way, recently, there is a suit for a motorcycle rider in response to a race, and in this suit,
As shown on the L side in FIG. 6, in many cases, a thick pad (bank sensor) A is attached to a position corresponding to the front side of the knee to protect the knee portion C of the rider B. Riders traveling on ordinary roads may also wear rider suits employing this type of bank sensor. Then, the knee pad A greatly extends outside the cowling, and turbulence occurs during traveling.

Further, rearwardly rising blade pieces are attached to the left and right side surfaces of the cowling, and a downward load is applied to the front wheels by wind pressure.
Some are designed to prevent the front wheels from floating. For example, see Japanese Utility Model Publication No. 56-49819.

[0005]

When the rider suit has a knee pad, the knee pad portion protrudes to the outside of the cowling D, causing wind turbulence and increasing wind resistance during traveling. I do.

In view of the foregoing, the present invention rectifies the flow of the wind at the front part of the knee pad on the side of the cowling so as to conform to the knee pad, thereby reducing the wind resistance. It is intended to obtain a motorcycle cowling structure capable of a natural flow.

[0007]

In order to achieve the above object, a motorcycle cowling structure according to the present invention comprises a line connecting a front wheel axle and a left and right recess at the rear of a fuel tank on a side surface of a cowling covering a front portion of a vehicle body. , And the rear portion is provided with a ridge protruding outward in a mountain shape. In addition, the ridge is made detachable from the side surface of the cowling.

The ridges provided on the left and right side surfaces of the cowling form a flow of wind that rises rearward along the ridges, and cover the front side of the rider's knee pad to prevent turbulence caused by the knee pad. To prevent.

Further, by making the ridge detachable from the cowling, it is possible to adjust the presence or absence of the knee pad and adjust the mounting position of the ridge up and down according to the rider's physique. it can.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. 1 to 3 show an embodiment of the present invention. A cowling 2 is attached to the front part of the motorcycle body 1 so that the cowling 2 covers the front part of the vehicle body 1. The fuel tank 3 mounted on the front upper portion of the vehicle body 1 is provided with recesses (knee grips) 4 on the left and right side surfaces of the rear portion so that the rider 5 can sandwich the rear portion of the fuel tank 3 between inner legs. On the side surface of the under cowl 2a of the cowling 2, substantially in line with the line M connecting the axle 7 of the front wheel 6 and the concave center 4 of the rear side surface of the fuel tank 3, the cross section has a mountain-shaped cross section in which the rear side is gradually increased. Ridge 8
Is formed integrally with the cowling 2.

The wind flowing along the side of the cowling 2 is
Due to the ridges 8, the air is rectified in the upward wind. Then, the pad 9 on the knee of the rider 5 enters the shadow of the wind rectified by the ridge 8, and the turbulence is not created by the pad 9 on the knee,
Reduces wind resistance. In addition, the ridges 8 make the flow of the rear going up, prevent the front wheels 6 from rising, and can make an ideal wind flow.

FIG. 4 shows another embodiment of the present invention. In this case, the ridge 8 is made of a soft core such as a sponge which is surface-coated, and is adhered to the side surface of the under cowl 2a of the cowling 2 using a double-sided adhesive tape. Alternatively, hook-and-loop fasteners formed of hooking members that can be hooked to each other are attached to both the ridge 8 and the under cowl 2a, and are attached and fixed to each other by the hook-and-loop fasteners. One side of the hook-and-loop fastener may be attached to the under cowl 2a more widely than the contact surface of the ridge 8, so that the ridge 8 can be attached to an arbitrary position.

FIG. 5 shows still another embodiment of the present invention. In this case, the ridge 8 is formed from a synthetic resin plate or the like, and is fastened to the side surface of the cowling 2 using a screw 10. The mounting position of the screw 10 can be adjusted slightly according to the physique of the rider 5 up and down. Also, a plurality of sets of mounting holes 11 for the screws 10 may be provided to allow a degree of freedom in the mounting position.

In the case of FIGS. 4 and 5, the ridge 8 is formed separately from the cowling 2 and is attached to the cowling 2, so that a rider using a rider's suit without the knee pad 9 can be protruded. Article 8 need not be attached.
The mounting position of the ridge 8 can be slightly adjusted vertically according to the physique of the rider 5.

[0015]

As described above, since the present invention is constructed as described above, a ridge is provided on the side of the cowling which hits the front side of the rider's knee. The pad portion of the knee enters the shadow of the wind flow of the ridge, so that turbulence is not created by the knee pad and the wind resistance can be reduced. In addition, the flow of the wind can be set to the ideal flow going backward. In addition,
By making it detachable from the cowling, it is possible to cope with the presence or absence of a knee pad, and to adjust the mounting position according to the position of the knee pad according to the rider's physique.

[Brief description of the drawings]

FIG. 1 is a side view of an entire vehicle showing an embodiment of the present invention.

FIG. 2 is a front view of the entire vehicle showing one embodiment of the present invention.

FIG. 3 is a perspective view of a cowling side part showing one embodiment of the present invention.

FIG. 4 is an exploded perspective view of a cowling side portion showing another embodiment of the present invention.

FIG. 5 is an exploded perspective view of a cowling side portion showing still another embodiment of the present invention.

FIG. 6 is a front view showing a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Body 2 Cowling 3 Fuel tank 4 Depression 6 Front wheel 7 Axle 8 Ridge

Claims (2)

[Claims] 1. A side surface of a cowling covering a front portion of a vehicle body,
A motorcycle cowling structure in which a rearward portion is provided with a ridge that protrudes outward in a substantially large mountain shape at a rearward ascending substantially along a line connecting a front wheel axle and a left and right recess at a rear portion of a fuel tank. 2. The motorcycle cowling structure according to claim 1, wherein the ridge is detachable from a side surface of the cowling.