JPH03227788A - Air cleaner device of motor-scooter - Google Patents

Abstract

PURPOSE:To prevent splashed water or the like from being sucked in an air intake passage by forming an air intake passage opened to the rear part of a helmet sotring box on the upper surface of a rear fender upper, and connecting the passage to an air inlet of an air cleaner. CONSTITUTION:An air cleaner 10 is disposed above a muffler 8 extended on one side of a rear wheel, and the front portion of the cleaner is connected to an engine 7 through a bracket 11. An air intake passage 12 which is opened to the rear of a helmet storing box 2 and extended in front and in rear is formed on the upper surface of a rear fender upper 4 disposed above the rear wheel. One end of an expansible boot 13 is installed cn the rear end portion of an air intake passage 12 by a clamp 14, and the other end of the boot 13 is connected to an inlet 10a in the upper portion of the air cleaner 10. By this arrangement, the splashed water or the like can be surely prevented from being sucked in the air intake passage 12.

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial Field of Application) The present invention relates to an air cleaner device for a scooter, and particularly to an improvement in the air intake section thereof.

(Prior Art) Recently, some scooter-type two-wheeled vehicles have a helmet storage box in the center of the vehicle body, which is called a met-in type. However, in such a vehicle, it is difficult to arrange the air cleaner in the center of the vehicle body due to the layout, and it is often installed around the rear wheels.

That is, FIG. 3 is a schematic side view showing the rear part of the scooter which is provided with a helmet storage box in the center of the vehicle body, and below the seat 1 provided on the vehicle body is a helmet storage box 2 for storing helmets and the like. The seat 1 is pivotally attached to one edge of the top of the helmet storage box 2, and by opening the seat 1 upward, the helmet 3 and the like can be taken in and out. A fuel tank 5 is placed on a rear fender upper 4 provided behind the helmet storage box 2, and the fuel tank 5 is covered with a body cover 6.

By the way, the engine 7 is installed at the bottom of the car body.
A muffler 8 connected to the engine 7 extends to one side of the rear wheel 9, and an air cleaner 10 is disposed above the muffler 8. The front side of the air cleaner 10 is connected to the engine 7 via the bracket 11.
The middle part of the muffler 8 is connected to the lower rear end of the muffler 8.

(Problem to be Solved by the Invention) However, in such scooters, it is difficult to protect the air cleaner from the outside, so the air cleaner may be exposed to water smoke kicked up from the rear wheels, water splashed from the front, or other vehicles. It is often sprayed with water or sprinkled with water. Moreover, in this case, since the air inlet to the air cleaner is generally provided in the air cleaner itself, there is a problem that some of the above-mentioned flying water may enter the air cleaner. In particular, when an air suction port is provided in the air cleaner itself, since the area of the suction port cannot be made large, the air flow rate increases, and as shown in FIG. There is a problem that it is easy to be sucked in from the suction port 10a.

Furthermore, in order to prevent water from entering, a maze or the like is provided in the suction port 10a as shown in FIG. 5, but in this case, the cleaner volume is reduced and the original cleaner is There may be problems such as insufficient performance.

In view of these points, it is an object of the present invention to provide an air cleaner device that prevents water and the like from entering the air cleaner even when the air cleaner is provided above the muffler.

[Structure of the invention]

(Means for Solving the Problems) The present invention provides an air cleaner disposed above a muffler extending on one side of a rear wheel, and an air suction passage that opens to the rear of a helmet storage box on the upper surface side of the rear fender upper. The helmet storage box is characterized in that the air suction passage is connected to the air suction port of the air cleaner, and that a drain plate is provided protruding from the rear lower surface of the helmet storage box.

(Function) While the scooter is running, air is drawn into the air cleaner through the air intake passage from the rear of the helmet storage box. On the other hand, during rainy weather, etc., water droplets kicked up by the rear wheel are prevented from scattering upward by the rear wheel, preventing the water droplets from entering the air intake passage, and preventing water from entering the air cleaner. is prevented. In addition, in the helmet storage box with a drain plate protruding from the rear lower surface, the water flowing backward along the bottom surface of the helmet storage box is blocked by the drain plate, and the air intake opening at the rear of the helmet storage box is prevented. Water flowing along the lower surface of the helmet storage box is prevented from entering the passage.

(Example) Hereinafter, an example of the present invention will be described with reference to FIG. 1 and FIG. 2.

In FIG. 1, an air cleaner 10 is disposed above a muffler 8 extending to one side of a rear wheel (not shown), and the front part of the air cleaner 10 is connected to a bracket 1.
1, and is connected to the engine 7 via the air cleaner 1.
The middle part of the muffler 8 is connected to the rear lower part of the muffler 8.

On the other hand, a fuel tank 5 is provided on a rear fender upper 4 disposed above the not-illustrated rear wheel, and a helmet storage box 2 is formed in front of the fuel tank 5.

By the way, the front end of the rear fender upper 4 is protruded so as to cover the lower part of the rear wall and the rear end of the bottom wall with an appropriate gap between the rear wall and the bottom wall of the helmet storage box 2. Further, an air suction passage 12 is formed on the upper surface side of the rear fender upper 4 and opens to the rear of the helmet storage box 2 and extends in the front-rear direction.

The opening of the air suction passage 12 has an inclined side cross section so that the upper wall 12a side protrudes toward the helmet storage box 2 side, so that water etc. from above can be prevented from entering the air suction passage 12.
This is to prevent it from getting inside.

Further, the rear end of the air suction passage 12 communicates with a cylindrical portion 12b protruding from the lower surface side of the fender upper 4, and one end of a retractable boot 13 is attached to this cylindrical portion 12b by a clamp 14, and the boot The other end of the air cleaner 13 is attached to a boot fitting tube 10b of an inlet 10a provided at the upper part of the air cleaner 10 by a clamp 15.

In addition, a drain plate 1 is provided on the bottom surface of the helmet storage box 2.
There are 6 protrusions.

Thus, while the scooter is running, air flowing along the rear and lower surface of the helmet storage hook 2 is sucked into the air suction passage 12 and into the air cleaner 10 via the boot 13.

On the other hand, even if water or the like that is kicked up by the rear wheels is splashed onto the air cleaner 10 or the like during rainy weather, the water or the like is prevented from being sucked into the air suction passage 12 by the rear suspension upper 4. In addition, water that moves backward along the bottom surface of the helmet storage box 2 is also removed by the drain plate 16.
This prevents them from moving, thereby reliably preventing them from entering the air intake passage 12 side through the gap between the front end of the rear fender upper 4 and the lower surface of the helmet storage box 2.

〔Effect of the invention〕

As described above, the present invention forms an air suction passage that opens to the rear of the helmet storage box on the upper surface of the rear fender upper, and connects this air suction passage to the air suction port of the air cleaner. Water splashed by other vehicles is almost never directly sucked into the air cleaner, and troubles caused by water can be prevented. Moreover, there is no need to form a complicated maze or the like inside the cleaner box, and the cleaner performance can be effectively exhibited.

[Brief explanation of drawings]

Fig. 1 is a partially longitudinal side view of the air cleaner device of the present invention, Fig. 2 is a sectional view taken along the line ■-■ in Fig. 1, Fig. 3 is a rear side view of a conventional scooter, Figs. FIG. 5 is a diagram showing a schematic configuration of a conventional air cleaner device. 1... Seat, 2... Helmet storage box, 4
...Rear fender upper, 5...Fuel tank, 7.
...Engine, 8...Muffler, 9...Rear wheel, 10...Air cleaner, 12...Air intake passage,
13... Boots, 14.15... Clamp, 16.
・Draining board.

Claims (1)

[Claims] 1. An air cleaner is disposed above the muffler extending on one side of the rear wheel, and an air intake passage opening to the rear of the helmet storage box is formed on the upper surface of the rear fender upper, and the air intake An air cleaner device for a scooter, characterized in that a passage is connected to an air intake port of the air cleaner. 2. The air cleaner device for a scooter according to claim 1, further comprising a drain plate projecting from the lower rear surface of the helmet storage box.