JPH0563329B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a wind guide device applied to a vehicle having one steering front wheel.

(Background of the Invention) In a motorcycle or tricycle having one steering front wheel, a liquid-cooled engine is disposed behind the front wheel, and a radiator for this engine is disposed above the engine, that is, behind the steering shaft cylinder. There is something. In this case, in order to prevent the radiator from being splashed with muddy water splashed by the front wheels, it is desirable to provide a front fender in front of the radiator and to install the radiator at a sufficiently high position. However, a headlight is usually arranged above the front fender, and this headlight is arranged so as to almost cover the space surrounded by the left and right front forks and a pair of upper and lower brackets that hold both front forms. Ru. Since the front fender and the headlight above the radiator are located in front of the radiator as described above, there has been a problem in that the airflow from the vehicle is difficult to hit the radiator, resulting in poor cooling of the radiator and the engine.

On the other hand, it is desirable that lights such as headlamps be placed as high as possible from the road surface and emit light from a high position relative to the road surface.

(Purpose of the Invention) The present invention was made in view of the above circumstances, and it is possible to provide a headlamp between a pair of upper and lower brackets that hold a front fork, and a front fender is fixed to the lower bracket. The running air is well guided to the radiator located behind the steering shaft cylinder, improving engine cooling performance, and even if muddy water splashed by the front wheels builds up on the radiator, the mud easily falls off and cleans the radiator. It is an object of the present invention to provide an air guide device for a vehicle that is less likely to cause deterioration in cooling performance due to clogging, and that can provide desirable illumination of the road surface by lamps.

(Structure of the Invention) According to the present invention, this object is to attach left and right front forks to a steering shaft rotatably held in a steering shaft cylinder at the front end of the frame via upper and lower brackets, A steering front wheel is held at the lower part between the two, a front fender covering the front wheel is attached to the lower bracket, and a vertically elongated engine cooling radiator is vertically arranged below the lower bracket and behind the front fender and is offset in the width direction of the vehicle body. In the vehicle equipped with the above-mentioned vehicle, a lamp is installed in the upper part of the space surrounded by the front forks and the upper and lower brackets, and is attached to the running wind intake formed in the lower part of the space to direct the running wind to the radiator. A vehicle comprising: a plurality of substantially horizontal wind guide plates for guiding the vehicle; and a plurality of substantially vertical wind guide plates attached to the front surface of the radiator and tilted so that their front edges are deviated toward the center of the vehicle body. This is achieved by using an air guide device.

(Example) Fig. 1 is a side view of an embodiment applied to a tricycle for traveling on rough terrain, Figs. 2 and 3 are a front view and a plan view of the main parts, and Fig. 4 is a side view of an embodiment applied to a tricycle for traveling on rough terrain. FIG. 5 is a perspective view of the baffle plate shown in FIG.

In FIG. 1, reference numeral 10 denotes a frame, including a steering shaft cylinder 12 at the front end and a pair of right and left up tubes 1.
4 (14a, 14b), a down tube 16, a pair of left and right lower tubes 18 (only one shown), a seat rail 20, a back tube 22, and the like. A liquid-cooled engine 24 is mounted in a space surrounded by an upper tube 14 and a lower tube 18. A carburetor 26 is connected to the rear surface of the cylinder 24a of the engine 24, and intake air is guided to the carburetor 26 from an air purifier 28 attached to the intake tube 14 through a duct 30. 3
2 is an element installed in the air cleaner 28. Reference numeral 34 denotes an exhaust pipe, which extends from the front of the cylinder 24a to the left side of the engine 24, between a pair of left and right rear wheels 36 (only one is shown), and which connects to an exhaust muffler 38 disposed between the two rear wheels 36. It is connected.
40 is a rear fender that covers above both rear wheels 36. On this fender 40 is the air purifier 28.
A driver's seat 42 is attached that extends up to .

A pair of left and right radiators 4 are installed in the down tube 16.
4 (44a, 44b) are installed vertically so as to sandwich the down tube 16 from the left and right sides. Note that this radiator 44 is located below a lower bracket 54b, which will be described later, and at the rear of a front fender 56, which will be described later. Also, in front of this radiator 44 is a wind blower 46 (46a,
46b) is attached. The air guide 46 includes a plurality of substantially vertical and longitudinally elongated air guide plates 48 (48a, 48
b), and each baffle plate 48 is inclined so that its front edge is deviated toward the center of the vehicle body (see FIG. 5).
Incidentally, by tilting the front edge of the air guide plate 48 inward, the running wind guided from the air guide plate 72 installed between the upper and lower brackets 54a and 54b can be smoothly introduced into the radiator 44, and the front wheels 50 can be The effect of preventing mud and water that is splashed up, especially mud and water that is splashed up during steering, from adhering to the radiator 44 can be obtained. Furthermore, mud and water adhering to the baffle plate 48 fall along the baffle plate 48 due to vibrations during driving, so that the baffle plate 46 can be prevented from becoming clogged with mud.

50 is a front wheel equipped with a wide ultra-low pressure tire. This front wheel 50 has a pair of left and right front forks 52.
It is attached to the lower part of (52a, 52b).
The upper end of the front fork 52 is connected to the upper and lower ends of a steering shaft (not shown) rotatably held in the steering shaft cylinder 12 by upper and lower brackets 54 (54a, 54b).
has been fixed through. In Fig. 1, 56 is a front fender attached to the lower surface of the lower bracket 54b;
58 is a steering handle fixed to the upper surface of the upper bracket 54a.

60 is a headlamp as a lamp. This headlamp 60 includes a horizontally long case, and a pair of left and right light emitting parts 62 (62a, 62b, see FIG. 2) and a reflecting plate 64 (64a, 64b) are housed in this case. Optical axis A, B (see Figure 3)
is arranged in the upper part of the space surrounded by both front forks 52 and upper and lower brackets 54 so as to pass between the steering shaft cylinder 12 and the front forks 52a and 52b. For this reason, a running wind intake 66 (FIG. 1) that opens toward the front is formed in the lower part of this space.

A wind blower 68 is attached to the traveling wind intake 66 to guide the traveling wind diagonally downward toward the radiator 44 and the engine 24. As shown in FIG. 4, this air blower 68 consists of a pair of guide plates 70 (70a, 70a,
70b) and a plurality of substantially horizontal air guide plates 72 connecting between the guide plates 70. These baffle plates 72
is for deflecting the running wind diagonally downward and guiding it to the radiator 44 and engine 24. An arcuate notch 74 is formed at the rear edge of the baffle plate 72 to prevent interference with the steering shaft cylinder 12. The air blower 68 is pushed between both front forks 52 with one of the upper and lower brackets 54 removed, and is held between the upper and lower brackets 54.

According to this embodiment configured as described above, even if the amount of traveling wind that hits the radiator 44 is reduced due to the front fender 56, the wind that enters from the traveling wind intake 66 is directed to the radiator 44 by the wind guiding plate 72. be guided in a direction. Even if the traveling air guided by the air guide plate 72 hits the radiator 44 at an angle in the vertical direction, the air guide plate 46 on the side of the radiator 44 is substantially perpendicular, so that the air flow guided by the air guide plate 72 will not be deterred by the air guide plate 46 and will move toward the radiator 4 at an angle.
It falls under 4. In particular, the front edge of the air guide plate 46 on the radiator 44 side is deviated toward the center of the vehicle body, so that the wind deflected downward by the air guide plate 72 can be effectively guided to the radiator 44. . Therefore, the cooling performance of the radiator 44 does not deteriorate.

Further, the mud and water splashed by the front wheels 50 do not enter the running wind intake 66, and the running wind that enters from this intake 66 hits the wind blower 46 of the radiator 44 downward. It can help the adhering mud and water fall off. Further, even if the muddy water splashed up by the front wheels 50 hits the air guide plate 46 in front of the radiator 44, this air guide plate 46 is almost vertical and therefore tends to fall. Therefore, clogging of the radiator 44 and the baffle plate 46 can be effectively prevented. Furthermore, since the front edge of the baffle plate 46 of the radiator 44 is deviated toward the center of the vehicle body, mud etc. thrown up by the front wheels 50 may be thrown onto the front fender 5.
Even if it passes through the side of 6 and flies in the direction of radiator 44,
This air guide plate 46 is prevented from hitting the radiator 44 and causing clogging.

Since the headlight 60 has two light emitting parts 62a and 62b, the vertical width of the case can be reduced without sacrificing the illuminance, and therefore a large traveling air intake 66 is secured to increase the amount of traveling air that enters from here. be able to. Note that the two optical axes A and B are the steering axis cylinder 12.
Since the headlight 60 is deviated to the left and right, the headlight 60 can be brought close to the steering shaft tube 12 without causing the plug projecting rearward of the light emitting section 62 to interfere with the steering shaft tube 12, and the steering handle 58 can be operated easily.

In the above embodiment, a headlamp 60 in which two light emitting parts 62 are housed in one case is used as a lamp disposed above the space surrounded by both front forks 52 and upper and lower brackets 54. The present invention also includes those that are provided with headlights on either the left or right side, and those that use lighting equipment such as fog lamps other than headlights.

(Effects of the Invention) As described above, the present invention provides lighting equipment such as a headlamp in the upper part of the space surrounded by the left and right front forks and the upper and lower brackets, and a running windshield in the lower part of this space. An inlet is provided, and this running air intake is equipped with a plurality of approximately horizontal baffle plates that guide the running wind diagonally downward toward the radiator, so that the running air can be properly directed to the radiator located behind the front wheels and front fender. can lead to.

In particular, multiple air guide plates are installed almost vertically on the front of the radiator, and the leading edges of these plates are tilted toward the center of the vehicle body. Even if the air guide plate in front of the radiator is deflected downward and hits the radiator obliquely, the air guide plate in front of the radiator hardly becomes an obstacle to the flow of the traveling air. Further, since the radiator is vertically elongated and offset in the vehicle width direction, the wind that enters from the running air intake and is divided into left and right sides by the steering shaft cylinder 12 hits the radiator well.

The air guide plate in front of the radiator is almost vertical and its front edge is tilted toward the center of the vehicle, so even if muddy water splashed up by the front wheels adheres to the air guide plate, it will easily fall and reach the radiator. It becomes difficult to do. Therefore, clogging of the radiator is less likely to occur.

Furthermore, since the lamps are located close to the upper bracket, that is, at a high position, and the road surface is illuminated from a high position, obstacles on the road surface can be easily seen, and a desirable lamp arrangement can be achieved.

[Brief explanation of the drawing]

Figure 1 is a side view of an embodiment applied to a tricycle for traveling on rough terrain, Figures 2 and 3 are front and plan views of its main parts, and Figure 4 is a wind guide plate installed at the air intake for traveling. FIG. 5 is a sectional view taken along the - line in FIG. 1. 10... Frame, 12... Steering shaft cylinder, 24...
...Engine, 44...Radiator, 46...Substantially vertical baffle plate, 50...Front wheel, 52...Front fork,
54...Upper and lower brackets, 56...Front fender, 60...Headlight as a lighting device, 66...Travel wind intake, 72...Substantially horizontal wind guide plate.

Claims (1)

[Scope of Claims] 1. Left and right front forks are attached to a steering shaft rotatably held in a steering shaft cylinder at the front end of the frame via upper and lower brackets, and the steering shaft is mounted at the bottom between both front forks. In a vehicle that holds a front wheel, a front fender covering the front wheel is attached to the lower bracket, and a vertically elongated engine cooling radiator is vertically disposed below the lower bracket and behind the front fender and is offset in the vehicle width direction, A plurality of substantially horizontal lamps are installed at the top of a space surrounded by both front forks and upper and lower brackets, and are installed in a running wind intake formed at the bottom of the space to guide running wind to the radiator. A wind guiding device for a vehicle, comprising: a wind guiding plate; and a plurality of substantially vertical wind guiding plates attached to the front surface of the radiator and inclined so that their front edges are deviated toward the center of the vehicle body.