JPS5885770A - Cowling structure of motorcycle - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a motorcycle in which a waxy cowling is inadvertently formed around the engine, and particularly to counterfeiting of the cowling.

In recent years, automatic cars with cowlings have been introduced to protect the driver from wind and rain and reduce running resistance.
Wheeled vehicles are becoming popular as commercially available vehicles for general driving. By the way, in the case of a full cowling that covers not only the area around the headlamp but also the area around the engine, there is an opening for cooling air intake on the front of the cowling that covers the area around the engine. I am thinking. Therefore, the cooling air that flows into the cowling from the opening during running travels through the space between the engine and the undercowl IIIdi, and flows rearward from the cowling opening. In this one, the footrest G-, which the driver places on the leg 1r, is located behind the cowling, so this leg cools the engine and is exposed to both heat and the cooling wind. It turns out. This poses no problem in the winter as the legs are warmed, but in the summer the legs may feel hot and comfort may be compromised.

The present invention was made based on these circumstances, and
The purpose of this is to create a cowling structure for motorcycles that can increase or decrease the thermal effect of the engine cooling air on the rider's 114 parts depending on the driving situation and the season, thereby providing a comfortable ride. This is what we are trying to provide.

That is, in order to achieve the above object, the present invention has an opening on the outside of the cooling air passage located in front of the driver's legs, one end of which is opened at the curved surface of the cowling to take in running wind, and the other end is opened to the side of the cowling. A ventilation passage that opens in front of the leg is divided into sections, and this ventilation passage is provided with an opening/closing wall that selectively opens and closes the opening.By opening and closing this opening/closing wall, engine cooling air is directed to the leg. It is characterized by nine features that allow the thermal influence to be freely increased or decreased.

The first embodiment of the present invention will be reviewed below based on FIGS. 1 to 4. FIG.
3 represents a steering wheel, 3 represents a steering wheel, 4 represents a fuel tank, 5 represents a seat, and 6 represents a driving wheel.

A water-cooled front and rear V-shaped engine 7 is arranged below the fuel tank 4. This engine 7 is a V-shaped two-cylinder engine in which a front cylinder 8 and a rear cylinder 9 are installed on a crank case 10 so as to be inclined in the front-rear direction. A vaporizer (not shown) is disposed. On both sides of the rear part of the crankcase 10, there is a footrest 1 on which the driver A places his/her legs B, B.
1.11 (-10,000 is shown) is provided, and the rear cylinder 9 is located between these legs B, B.

By the way, the area from the front of the handlebar 3 to the front half of the enno/7 is covered with a cowling structure 12 made of synthetic resin. This cowling structure 12 is of a frame fixed type fixed to a frame (not shown), and is formed mainly of a flat cowl 13 and an under cowl 14. A, the arm cowl 13 surrounds the front part of the fuel tank 4 from around the front of the handle 1, that is, from around the playing card 9 to the front part of the handle 1 (not shown).
A windshield 15 is connected to the upper edge of the windshield 3. On the other hand, the under cowl 14 is continuous with the under cowl 11 and wraps around the front and sides of the front half of the engine 1. A cooling air inlet 16 is provided in the part facing the front part of the engine 1. ing. Both side edges of the lower end of the unfinishing cowl 14 are rotated to the bottom of the crankcase 100], and between both sides of the unfinishing cowl 14 and the engine r, there is a cooling air guide connected to the cooling air inlet 16. A passage 11 is formed. A jet eater 18 for cooling engine cooling water is attached to the cooling air inlet 16. The rear end edge of the opening mechanism 140 is integrally extended inward at the front part of the legs B and B, and the extended part covers the rear end opening of the cooling air guide passage 17, and the rear end edge of the leg part B is integrally extended inward.

It covers the front of B and forms Gushield 19.19. Further, on both sides of the under cowl 14, there are a plurality of outlet ports 20 located forward and lower than the footrest 11.
. . are opened, and the outlet ports 20 are communicated with the cooling air passage 17.

On both side surfaces of the under cowl 14, duct portions 21.degree. 21 are integrally formed and project from both the left and right sides in a substantially U-shape. The front ends of these duct parts 21 and 210 are opened forward as they are to form the outside air intake port 22, and the rear ends are extended rearward beyond the leg shields 19 and 19 to form the front part of the legs @, B, ml. In these legs B, B
It forms an air outlet 23 that opens inward.

The inside of these duct portions 11.21 constitute ventilation passages 14.14 located on the left and right outer sides of the cooling air passage 17, and the ventilation passages 24.24 and the cooling air passage 11 are separated by a partition 9 wall 2s. , 25. The front ends of the partitions 11125 and J5 of this embodiment are rotatably supported by the undercowl 14, and the entire partitions 11125 and J5 are provided so as to be movable in and out of the ventilation passages 24 and 24. .21, the ventilation passages 24 and 24 can be selectively opened and closed.

Therefore, the partition walls xs, xti are the ventilation passages 24.2.
It also has the function of an opening/closing wall that opens and closes 4. Note that the partitions n*2g and xi are manually rotated (opened and closed) by the driver, and the rotation position of the lid can be adjusted steplessly.

With such a configuration, as shown in FIG. 2, multiple partition walls 25. In a state where the ventilation passage 24.14 and the cooling air guide passage 11 are separated from each other by the IIK, the outside air tn whose temperature has been raised by passing through the Raji and III during driving is used to cool the inside of the amplifier cowl 14. After flowing into the wind guide passage lr, most of the air is discharged to the outside of the undercowl 14 through the outlet 2o-- located forward and lower than the footrest 11, as shown by the broken arrow.

At the same time, the outside air, that is, the running wind that flows into the ventilation passage 24.24 from the outside air intakes xx and zx during driving, flows from the air outlet 23° 23 to the driver's leg B as shown by the solid arrow.
, B. Therefore, in the summer, if the ventilation passages 24, 24 and the cooling air guide passages 17 are made independent by the partition walls 2s and ts, the operation of the legs B can be reduced.

Since the cooling air whose temperature has been raised to B is not directly guided and the running wind is forcibly removed, the legs B and B do not feel hot while running as in the conventional case.

10,000, rotate the partition wall 25.25 to the ventilation passage 24°24 side, and make the ventilation passage 24.25 as shown in FIG. ;14
When the inside of the IML is closed, the flow of running air from the outside air intake port 22 into the ventilation passage 24.24 is blocked, and the cooling air is communicated with the outlet 22.23 of the ventilation passage 24°2.4. The inside of No. z will be in a state of communication. Then,
Most of the cooling air in the cooling air guide passage 17 flows into the ventilation passage 24.24 side as indicated by the arrow, and this cooling air is discharged from the air outlet 23.23. Therefore, in winter, if the ventilation passages 24 and 24 are closed as described above, the driver's
Legs B and II, on the other hand, are not heated by the cooling air, which is convenient for driving in cold weather. In this case, in this embodiment, the air outlets 23.23 of the ventilation passages 24.14 are opened inward from the legs B and B, so that the heated cooling air is discharged from there. is definitely at leg B without spreading outward.

This has the advantage of further improving the heating effect. In addition, as shown by the imaginary line in Fig. 4, the partition wall j 5 a
Change the rotation position of J5 to create a ventilation passage 2t, 241!
- If the legs are left in the half-open state, both the heated cooling air and the running air are supplied to the legs B and B at the same time. The temperature of B can be freely increased or decreased according to the driver's preference.

As can be seen from the above explanation, the thermal effect of the cooling air on the driver's legs B and B can be freely adjusted to 1llij1 according to the driver's preference as well as the seasonal tatami during the driving condition. There are advantages such as significantly improved comfort.

Further, in the above embodiment, since the partition walls 25 and 25 also function as opening/closing walls, the functions of the parts can be expanded, and therefore the number of parts can be reduced and the structure can be simplified.

Note that the present invention is not limited to the first embodiment described above, and a second embodiment of the present invention is shown in FIG. shows,
Therefore, the cooling air inlet 16 remains open to the front.

Above again! In the Il embodiment, a shield is provided at the rear edge of the under cowl, and the rear opening of the cooling air passage is covered by a shield, so that when the partition 9 wall is opened, the cooling air is mainly discharged from the outlet. This was done to prevent the cooling air from flowing through the legs, but it is not necessary to close the bottom and bottom ends of the four cooling air passages, and the cooling air can be discharged from here. In this case, cooling air will flow to the legs even in the summer, but since the running air is also forced into the forced solar system from the ventilation passage in this case, this running air will reduce the temperature of the cooling air. 9, therefore, the heat on the legs is less intense. In addition, when adopting this structure, if the outlet of the ventilation passage is also opened inward from the legs as shown in the first embodiment, the running wind will be directed to the front of the legs. It will definitely mix with the cooling air. That is, since the flow of the running air is not obstructed by the cooling air, the cooling air is reliably guided to the legs, which is more convenient for suppressing heat shadows.

Furthermore, in the above embodiment, the partition 9 wall also has the function of an opening/closing wall, but for example, an opening that communicates the ventilation passage and the cooling air passage is provided in the partition, and this opening and the ventilation passage can be opened and closed. It may be opened and closed.

Further, the engine is not limited to the 4hO type, which is limited to the front and rear V-types, but can be similarly implemented with, for example, a single-cylinder ennon or a multi-cylinder differential engine.

According to the present invention described above, one end is opened in the cowling surface to disperse running wind to the outside of the cooling air guide path located in front of the driver's legs, and the other end is opened in front of the above-mentioned shank part. A ventilation passage for introducing running wind is formed into sections, and this ventilation passage is provided with an opening/closing wall that selectively opens and closes the passage.The structure is similar to the cowling structure of a nine-wheeled motor vehicle. According to this, if the opening/closing wall is opened and the ventilation passage is opened, the running air is actively drawn to the legs, so that the heat of the heated engine cooling air from the cooling air passage is removed. The effect is small, and if the ventilation passage is closed by opening and closing, the supply of running air will be cut off, so the legs will be warmed by the engine cooling air. Therefore, the heat effect of the engine cooling air on the driver's legs can be freely increased or decreased depending on the driving conditions, the season, as well as the driver's preferences, and comfort is greatly improved. It has excellent effects such as

[Brief explanation of the drawing]

Figures 1 to 3 show a first embodiment of the present invention, where Figure 1 is a side view of the motorcycle, Figure 2 is a cross-sectional view of #i with the ventilation passage open, and Figure 3 is a side view of the motorcycle. Figure 3 is the irises Figure 2 Chumon-11!1
4 is a cross-sectional view with the ventilation passage closed, and Figure S is a cross-sectional view showing the IE2 embodiment of the present invention.
7, Jl...engine, 14...cowling (undercowl), 16...cooling air inlet, 11
...Cooling air passageway, 24...Ventilation passageway, 252...
- Closing wall (partition wall), M...driver, B...legs.

Claims (2)

[Claims] (1) The engine is surrounded by a cowling equipped with a cooling air inlet that opens at the front of the engine. Forms a continuous cooling air passage,
In addition, this cowling has a ventilation passage located outside the cooling air guide passage, and the opening of this ventilation passage is opened on the circumferential surface inside the cowling to let in the traveling wind, and the other end is 1. A cowling structure for a two-wheeled motor vehicle, characterized in that the ventilation passage has an opening and closing wall that opens in front of the rider's legs and selectively opens and closes the ventilation passage. (2) The cowling structure for a two-wheeled motor vehicle according to claim 1, wherein the opening/closing wall also serves as a partition cage that partitions the cooling air guide passage and the ventilation passage.