JPH0631044B2 - Motorcycle - Google Patents

Description

TECHNICAL FIELD The present invention relates to a motorcycle provided with a fairing so as to cover a front portion of a vehicle body and a lower portion and side portions of an engine.

[Prior Art] As is well known, in a motorcycle, a front fork is rotatably provided on the front side of a vehicle body, a front wheel is supported and a front fender is provided below the front fork,
In addition, there is a radiator provided on the front side of the engine mounted on the vehicle body, and a fairing is provided so as to cover the lower part and the side portion of the engine from the front part of the vehicle body. Some have been designed to protect from rain, etc.

As disclosed in JP-A-57-55273 and JP-A-58-93582, an opening is provided in the center of the front surface of the fairing. To cool the radiator of air-cooled engines and water-cooled engines.

[Problems to be Solved by the Invention] By the way, since this opening is formed at a position corresponding to a radiator of an air-cooled engine or a water-cooled engine and is large enough to be cooled by traveling wind, Mud and pebbles enter the inside of the fairing from below the opening. For this reason, the inside of the fairing must be frequently cleaned, and if dust and dirt adhere to the inside of the lower part, it cannot be easily removed.

For example, it may be possible to detachably install a shielding means having a large number of holes at the bottom of the opening of the fairing so that the shielding means can prevent mud, pebbles, etc. from entering the inside of the fairing. However, the fairing is oval and streamlined to reduce the resistance of the wind. For this reason, in order to make the shielding means attachable to and detachable from the lower part of the opening of the fairing, the peripheral part of the opening is curved,
The attachment portion of the shielding means also needs to be formed in a curved shape so that it can be joined to the peripheral portion of the opening. Therefore, the processing accuracy of the shielding means is required, and the mounting portion of the shielding means cannot be easily aligned with the peripheral portion of the opening.

Further, for example, if a shielding means having a large number of holes is arranged below the opening of the fairing, the shielding means allows the traveling wind to pass, but the flow rate of the traveling wind in the portion provided with the shielding means and the portion not provided with the shielding means. However, there is a problem that eddy current is generated in the fairing and efficient engine cooling cannot be performed.

The present invention has been made in view of such a situation,
By providing a shielding means at the opening, mud, pebbles, etc. can be prevented from entering the inside of the fairing, cleaning is easy, and there is no hindrance to the introduction of running wind that cools the engine. Positioning can be easily done when attaching the shielding means to the opening, and the shielding means can be easily replaced,
Furthermore, it is an object of the present invention to provide a motorcycle that improves the cooling efficiency of the engine.

[Means for Solving the Problems] In order to solve the above problems, according to the present invention, a front fork is rotatably provided on a front side of a vehicle body, a front wheel is supported and a front fender is provided under a front fork, and A motorcycle provided with a radiator above a front side of an engine mounted on a vehicle body, and a fairing provided so as to cover a lower portion and a side portion of the engine from a front portion of the vehicle body. Is formed to be larger than the front fender, the radiator and the engine are disposed so as to face the opening behind the front fender, and the radiator and the engine are arranged behind the opening, and the opening is below the lower end of the front fender. The front side of the fairing is formed into a flat portion continuous with the lower peripheral edge of the opening, and the lower peripheral edge of the opening is formed. A detachable shield means having a large number of holes covering a position below the lower end of the front fender, and a space provided between the shield means and the radiator on the front side of the engine. There is.

[Operation] In the present invention, the opening for passing traveling air is formed on the front surface of the fairing, and the shielding means having a large number of holes is provided below the opening to close the opening. Since it has such a structure, it does not hinder the introduction of traveling wind that cools the engine and the like, and even if mud or pebbles or the like are splashed up by the front wheels, they are blocked by the shielding means and can be prevented from entering the fairing.

Further, an opening is formed on the front surface of the fairing so as to be larger than the front fan, and at a position below the opening and below the lower end of the front fender, the shielding means is provided only in a necessary portion. More effectively, the traveling wind is guided to the radiator or engine through the opening and cooled.

Furthermore, behind the front fender, the flow of traveling air is obstructed by the front fender, but the part of the fairing that faces the front fender is open, and there are many front fenders behind the front wheel below the front fender. Similarly, the flow amount corresponding to that can be obtained by the blocking means having the holes, the traveling wind under the radiator becomes almost uniform, the vortex is reduced, and the engine can be cooled efficiently.

Further, since the shielding means is detachably provided, if the shielding means may be deformed by hitting mud or pebbles, the shielding means can be easily replaced. Further, if mud, pebbles, or the like may enter the fairing, the shielding means can be easily removed to take out the mud, pebbles, or the like for cleaning, and maintenance is easy.

Further, the front side of the fairing is formed into a flat portion that is continuous with the lower peripheral edge of the opening, and the lower peripheral edge of this opening is a flat surface, so that the shielding means can be easily attached to the lower peripheral edge of the opening. It can be positioned and attached, and the shielding means can be easily attached and detached.

[Embodiment] An embodiment of the present invention will be described below in detail with reference to the accompanying drawings.

FIG. 1 is a side view of a motorcycle to which the invention is applied, and FIG.
FIG. 3 is a perspective view of a fairing to which the present invention is applied, FIG. 3 is an enlarged front view of the present invention, FIG. 4 is a sectional view taken along line IV-IV of FIG. 3, and FIG. 5 is a V-V end surface of FIG. Fig. 6 and Fig. 6 are
VI-VI end view, FIG. 7 is a VII-VII end view of FIG.

In FIG. 1, reference numeral 1 is a vehicle body frame, and the vehicle body frame 1 includes a head pipe 2, a pair of tank rails 3, and a pair of down tubes 4. A front fork 5 is rotatably supported by the head pipe 2 and a front wheel 6 is supported by the front fork 5. Further, a front fender 7 is fixed to the front fork 5.

A water-cooled V-type engine 8 is mounted on the Dunun tube 4. Further, a radiator 9 for cooling the cooling water of the engine 8 is arranged in the down tube 4 so as to be located above and in front of the V-type engine 8. A fairing 100 is attached to the down tube 4 so as to cover both sides and a lower portion of the vehicle body from the front portion of the front fork 5.

The fairing 100 is configured by connecting a center cowl 10, an upper cowl 11, and an under cowl 12, which are formed of, for example, a synthetic resin, and a windscreen 13 is fixed to the upper portion of the upper cowl 11.

An opening 14 is provided in the center of the front surface of the fairing 100 at a position corresponding to the radiator 9, and the running wind cools the radiator 9 introduced from the opening 14. The under cowl 12 covers the lower part of the V-type engine 8 from the rear of the front wheel 6 and therefore the opening 14
Is below the front wheel 6 and faces a position not covered by the front fender 7.

As described above, the fairing 100 is provided so as to cover the lower part and the side part of the engine 8 from the front part of the vehicle body, and the upper part 1 of the opening 14 through which traveling wind is passed is provided on the front surface of the fairing 100.
4a is located above the upper part 7a of the front fender 7, a lower part 14b of the opening 14 is located below the lower part 7b of the front fender 7, and the opening 14 is formed larger than the front fender 7.

The front side of the fairing 100 below the lower end of the front fender 7 of the opening 14 is formed into a flat surface portion 100a continuous with the lower peripheral edge of the opening 14, and the lower peripheral edge of the opening 14 is formed below the lower end of the front fender 7. A shielding means (200) having a large number of holes for covering the lower position is detachably provided. Also, V
A space 300 is provided on the front side of the die engine 8 between the shielding means 200 and the radiator 9.

In this way, since the front side of the fairing 100 is formed in the flat surface portion 100a continuous with the lower peripheral edge 14c of the opening 14,
The lower peripheral edge 14c of the opening 14 becomes a flat surface and the shielding means 200
Can be easily positioned and attached to the lower peripheral edge 14c of the opening 14, and the shielding means 200 can be easily attached and detached. Further, the shielding means 200 is detachably provided in the substantially U-shaped portion below the opening 14 to prevent mud, pebbles, and the like from entering the inside of the opening 14 and accumulating on the inner lower surface 12a of the under cowl 12. is doing.

The shielding means 200 is composed of a shielding plate body 15 and a mounting plate 16. The shield plate 15 has a wire net 17 having a large number of holes, a U-shaped mounting front plate 18 and a mounting back plate on both sides and a lower peripheral edge thereof.
It is sandwiched by 19 and welded from both sides, and a linear mounting back plate 20 is welded and fixed to the back side at the upper peripheral edge of the wire net 17.

The mounting surface plate 18 having a substantially U shape is bent at the peripheral edge into a step shape, and the engaging portion is formed.
18a is formed. On the other hand, the mounting back plate 19 has engaging portions 19a projecting outward on both sides and the central portion on the lower side, and a lower peripheral edge 14c of the opening 14 is formed between the engaging portions 18a, 19a. The open end portion 12b of the under cowl 12 is fitted and inserted. Also, the upper mounting back plate 20 has nuts 21 at both ends.
Is stuck.

The mounting plate 16 has, at both ends, an engaging portion 16a that engages with the open end of the center cowl 10 and an engaging portion 16b that engages with both upper ends of the substantially U-shaped mounting face plate 18. is doing.

Further, the mounting plate 16 is bent at the upper side to the back side to form an engaging portion 16c. This mounting plate 16 engages the upper engaging portion 16c with the mounting back plate 20. Further, the engaging portions 16a on both sides are attached to the opening end 10a of the center cowl 10, and the engaging portions 16b are attached to the mounting front plate 18.
The mounting back plate 20 and the engaging parts 20a at both ends of the mounting back plate 20 and the mounting plate 16
The opening end portion 10a of the center cowl 10 is sandwiched between the engaging portions 16a at both ends of the. Then, the screw 22 is fixed to the nut 21 by screwing.

Next, the operation of this embodiment will be described.

When the motorcycle runs, the driving wind is fairing 100
Is introduced through the opening 14 of the radiator 9 to cool the radiator 9. At this time, below the opening 14 of the fairing 100, the shielding means 2
Although covered with 00, the traveling wind does not adversely affect the cooling of the radiator 9 because it is introduced from the holes of the wire net 17. Moreover, the opening 14 through which traveling wind is passed is formed in the front surface of the fairing 100 to be larger than the front fender 7, and is provided below the opening 14 and below the lower end of the front fender 7. Since it is provided only in a necessary portion, the traveling wind can be more effectively guided to the radiator 9 and the engine 8 through the opening 14 and cooled.

Further, behind the front fender 7, the flow of the traveling wind is obstructed by the front fender 7, but since the portion of the fairing 100 facing the front fender 7 is opened by the space 300, there is a corresponding flow rate. . Further, behind the front wheel 6 below the front fender 100, a flow amount corresponding to the front fender 7 is similarly provided by the shielding means 200 having no front fender 7 but having a large number of holes. In this way, the traveling wind below the radiator 9 becomes substantially uniform, and the vortex is reduced,
The engine can be cooled efficiently.

Even if mud, pebbles, or the like is splashed up by the front wheels 6 toward the fairing 100 on the rear side during traveling, the mud or the like contacts the wire net 17 of the shielding means 200. Therefore, the inside of the fairing 100 is prevented, and the inner bottom of the under cowl 12 does not accumulate mud with dust and the like, and the cleaning of the fairing 100 is facilitated.

Further, at the time of this cleaning, if the screw 22 of the shielding means 200 is loosened and the mounting plate 16 is removed, the shielding plate body 15 can be easily removed by pulling it upward. On the other hand, the shielding means 200 is attached to the shielding plate 1
If 5 is inserted into the lower peripheral edge 14c of the opening 14 of the fairing 100 from the upper side to the lower side, the lower peripheral edge 14c of the opening 14 is provided between the engaging portions 18a and 19a of the mounting front plate 18 and the mounting back plate 19. The open end portion 12b of the constituting under cowl 12 is fitted. And the mounting plate 1
6 is applied from the front side, and the screw 22 is screwed and fixed to the nut 21 of the upper mounting back plate.

In this way, the front side of the fairing 100 is formed into the flat surface portion 100a which is continuous with the lower peripheral edge 14c of the opening portion 14.
Since the lower peripheral edge 14c is flat, the shielding means 200 can be easily positioned and attached to the lower peripheral edge 14c of the opening 14, and the shielding means 200 can be easily attached and detached.

As described above, the mounting plate 16 can be easily attached / detached only by bolting, and when the shielding means 200 is deformed due to contact with mud or pebbles, the shielding means 200 can be easily replaced. it can. Further, if mud, pebbles, or the like may enter the inside of the fairing 100, the blocking means 200 can be easily removed to take out and clean the mud, pebbles, or the like, which facilitates maintenance. Further, since the shielding means 200 is provided only in a necessary portion, it is formed in a flat plate shape, and since it is small, it can be easily attached and detached.

The size of the wire mesh 17 of the shielding plate body 15 can be freely selected. Further, since the shielding means 200 can be attached and detached, the change of the wire net 17 can be performed simply by changing the shielding plate body 15, and can be easily performed without changing the type of the under cowl 12.

Further, the shielding plate body 15 is not limited to the wire net 17, and may be formed of a plate such as a synthetic resin having a large number of holes. Further, the motorcycle is not limited to the water-cooled type, but may be one equipped with an air-cooled engine.

[Advantages of the Invention] As described above, according to the present invention, an opening for passing traveling air is formed on the front surface of the fairing, and a shielding means having a large number of holes is provided below the opening to close the fairing. Since the closing means has a large number of holes, it does not hinder the introduction of running wind that cools the engine, etc. Moreover, even if mud or pebbles are splashed up by the front wheels, it is blocked by the closing means and inside the fairing. Intrusion can be reduced.

In addition, since the opening is formed larger than the front fender on the front surface of the fairing, and further below the opening and below the lower end of the front fender, the shielding means is provided only in a necessary portion, The traveling wind can be more effectively guided to the radiator or the engine through the opening and cooled without being disturbed by the shielding means.

Although the front fender is behind the front fender and the flow of traveling air is obstructed, the part of the fairing that faces the front fender is open, and there is no front fender behind the front wheel below the front fender. In the same manner, the flow amount becomes equivalent to that of the shielding means having a large number of holes, the traveling wind under the radiator becomes substantially uniform, the vortex is reduced, and the engine can be cooled efficiently.

Further, since the shielding means is detachably provided, if the shielding means may be deformed by hitting mud or pebbles, the shielding means can be easily replaced. Further, if mud, pebbles, or the like may enter the fairing, the shielding means can be easily removed to take out the mud, pebbles, or the like for cleaning, and maintenance is easy.

Further, since the front side of the fairing is formed as a flat portion continuous with the lower peripheral edge of the opening, and the lower peripheral edge of this opening is a flat surface, the shielding means can be easily positioned at the lower peripheral edge of the opening. It is possible to attach and detach the shielding means easily.

[Brief description of drawings]

FIG. 1 is a side view of a motorcycle to which the invention is applied, and FIG.
FIG. 3 is a perspective view of a fairing to which the present invention is applied, FIG. 3 is an enlarged front view of the present invention, FIG. 4 is a sectional view taken along line IV-IV of FIG. 3, and FIG. 5 is a V-V end surface of FIG. Fig. 6 and Fig. 6 are
VI-VI end view, FIG. 7 is a VII-VII end view of FIG. A ... Fairing, B ... Blocking means 8 ... Engine, 9 ... Radiator 10 ... Center cowl, 12 ... Under cowl 14 ... Opening part, 15 ... Blocking plate body 16 ... Mounting plate, 17 ... Wire mesh

Claims (1)

[Claims] 1. A front fork is rotatably provided on a front side of a vehicle body, a front wheel is supported on a lower portion of the front fork, a front fender is provided, and a radiator is provided above a front side of an engine mounted on the vehicle body. In a motorcycle in which a fairing is provided so as to cover a lower portion and a side portion of an engine from a front portion, an opening portion for allowing traveling wind to pass is formed larger than the front fender on the front surface of the fairing, and the rear portion of the front fender is formed. The radiator and the engine are arranged so as to face the opening and behind the opening, and the front side of the fairing below the lower end of the front fender of the opening is continuous with the lower peripheral edge of the opening. Is formed on a flat surface portion of the front fender, and a plurality of portions are formed on the lower peripheral edge of the opening to cover a position below the lower end of the front fender. Detachably Saegi閉 means having provided a motorcycle being characterized in that a space is provided between the Saegi閉 means and the radiator in front of the engine.