JPH0532396Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a motorcycle provided with a fairing that covers the front and side parts of the vehicle body.

[Conventional technology]

In recent years, a pair of left and right main frame members extends rearward and downward from the head pipe at the front of the vehicle body in a substantially straight line in side view, and an engine is provided below the main frame members, and above the engine and between the main frame members. Many motorcycles are equipped with intake system components for the engine, a radiator above the front of the engine, and a fairing that covers the sides from the front of the vehicle body to improve the rectifying effect of the running wind. I can accept it.

[The problem that the idea attempts to solve]

However, if the area around the intake system members and radiator is covered with a fairing, the flow of air around the intake system members and radiator is small during driving, so the intake system members and radiator receive the heat of the engine, which is then introduced into the intake system members. This can increase the temperature of the air being used, affecting the combustion efficiency of the engine and affecting the cooling efficiency of the radiator.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a motorcycle that prevents temperature increases in the intake system members and the radiator by introducing running air around the intake system members and the radiator that are covered with a fairing.

[Means to solve the problem]

In order to achieve the above object, the present invention extends a pair of left and right main frame members from a head pipe at the front of the vehicle body rearward and downward in a substantially linear shape when viewed from the side, an engine is provided below the main frame members, and an engine is provided above the engine. and in a motorcycle having an engine intake system member disposed between the main frame members, a radiator provided above the front of the engine, and a fairing that covers the front and side parts of the vehicle body, the side of the head pipe of the fairing is provided. a pair of left and right openings facing forward are formed at positions spaced apart from each other and covering the main frame member, and an air intake system member cooling guide extending continuously from each opening to the inside of the main frame member provided with the air intake system member. The present invention is characterized by providing a wind duct and a radiator cooling air guiding duct extending in front of the radiator.

[Effect]

Thereby, the running wind can be effectively introduced into the vicinity of the intake system member and the radiator that are covered by the fairing.

〔Example〕

Hereinafter, one embodiment of the present invention will be described based on the drawings.

In the motorcycle 1, a pair of left and right main frame members 3 constituting the body frame 2 extend rearward and downward in a substantially straight line when viewed from the side from a head pipe 4 at the front of the vehicle body, and a bar handle 5 is rotatably supported on the head pipe 4. A front wheel 7 is rotatably supported at the lower end of a front fork 6 which is rotated by a bar handle 5, and a main frame member 3
An engine 9 supported by the main frame member 3 and a down tube 8 connected to the head pipe 4 is disposed below the engine 9, and a radiator 10 is provided at the front of the down tube 8 above the front of the engine 9. It is being

A pivot plate 11 is provided at the rear end of the main frame member 3. A swing arm 13 that rotatably supports a rear wheel 12 is supported on the pivot plate 11 so as to be able to swing up and down. A suspension 15 is disposed between the pivot plate 11 and the pivot plate 11 via a link mechanism 14.

Further, a seat rail stay 17 that supports a seat rail 16 extending rearward from the middle of the main frame member 3 is connected to the pivot plate 11.
A fuel tank 18 is placed above the front of the
A seat 19 is placed above this rear seat rail 16.
is installed.

The engine 9 is located at the bottom of the fuel tank 18.
An air cleaner 20 that constitutes an intake system member of the engine 9 is provided below the air cleaner 20 and above the engine 9 and between the main frame members 3 is a carburetor 21 that constitutes the intake system member of the engine 9. is installed.

Further, a fairing 22 is attached to the front of the vehicle body to integrally cover the side surface of the vehicle body frame 2 from the front surface of the head pipe 4.

A pair of left and right openings 23, 23 facing forward are formed at positions of the fairing 22 that cover the sides of the head pipe 4 in a spaced manner, and on the inside of the fairing 22, continuous to each opening 23, an air guide duct 2 for cooling intake system members extending inward of the main frame member 3 provided with the intake system members;
4 and a radiator cooling air guide duct 25 are integrally formed vertically, and the tip of the air intake system member cooling air guide duct 24 is defined by the frame member 3 and the down tube 8. The radiator cooling air guide duct 25 is bent downward and opens toward the radiator 10, and is directed toward a generally triangular space in which a carburetor 21 is disposed.

With this configuration, the running wind is guided from the openings 23, 23 of the fairing 22 to the intake system member cooling air guide ducts 24, 24 and introduced around the carburetor 21, and the radiator cooling air guide duct 25, The running wind guided by the radiator 25 is introduced around the radiator 10, lowers the temperature of the carburetor 21, prevents the temperature of the combustion air sent into the carburetor 21 from rising, stabilizes the combustion efficiency of the engine 9, and reduces the temperature of the radiator 10. Relatively clean air is introduced into the radiator 10 to improve cooling performance of the radiator 10.

Further, since the air cleaner 20 is also located above the carburetor 21, it can be cooled by the running wind, and the temperature of the combustion air sent into the intake system members can be lowered.

Furthermore, as in this embodiment, an air guide duct 24 for cooling intake system members and an air guide duct 25 for cooling the radiator are provided.
and are formed in two stages above and below the opening 23,
The air guide passage 26 is integrated into one piece, making it easy to manufacture.
It is also aesthetically pleasing.

[Effect of idea]

As described above, the present invention includes a pair of left and right main frame members extending rearward and downward from the head pipe at the front of the vehicle body in a substantially straight line when viewed from the side, an engine below the main frame members, and an engine above the engine. An intake system member for the engine is disposed between the main frame members, and covers the side of the head pipe of a fairing that covers the front and side parts of the motorcycle body, which is equipped with a radiator above the front of the engine. a pair of left and right openings facing forward at a position where the air intake system member is cooled; Since a radiator cooling air guide duct extending from the radiator is provided, running air is forcibly introduced into the engine intake system components and around the radiator to cool the intake system components and reduce the temperature of the combustion air sent to the intake system components. This makes it possible to stabilize the combustion efficiency of the engine and improve the cooling efficiency of the radiator.

In addition, since the air guide duct for cooling the intake system components and the air guide duct for cooling the radiator are formed continuously in one opening, the air guide passages are integrated into one, making manufacturing easy and aesthetically pleasing. .

Furthermore, since a pair of left and right openings are formed in the fairing at positions that cover the sides of the head pipe at a distance from each other, the openings are less likely to interfere with the front wheel suspension system, headlight, meter, etc.
The air guide duct continuous with the opening can have a large diameter, and the layout can be relatively freely arranged.

Moreover, since the traveling wind from the side portion of the fairing, which has a high flow velocity, is guided to the radiator, the cooling performance of the radiator can be improved.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention; FIG. 1 is a side view of a motorcycle, FIG. 2 is an enlarged side view of the main parts, and FIG. 3 is a partially sectional plan view. 1...Motorcycle, 2...Vehicle frame, 3...
...Main frame member, 4...Head pipe, 8
...Down tube, 9...Engine, 10...
Radiator, 20... Air cleaner, 21... Carburator, 22... Fair ring, 23... Opening, 24... Air guide duct for cooling intake system members, 25
... Air guide duct for cooling the radiator, 26... Air guide passage.

Claims (1)

[Scope of utility model registration request] A pair of left and right main frame members extend rearward and downward from a head pipe at the front of the vehicle body in a substantially linear shape when viewed from the side, an engine is provided below the main frame members, and above the engine and between the main frame members, In a motorcycle having an intake system member for an engine, a radiator provided above the front of the engine, and a fairing that covers the front and side parts of the vehicle body, the part of the fairing is located at a position covering the sides of the head pipe of the fairing at a distance. An air guide duct for cooling intake system members that forms a pair of left and right openings facing forward, and extends inward of the main frame member in which the intake system members are provided continuously from each opening, and a radiator that extends in front of the radiator. A motorcycle characterized by being provided with a cooling air guide duct.