JPH0143499Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Technical Field) The present invention relates to an air cleaner that removes dust and the like from the air.

(Prior art) An air cleaner attached to a vehicle engine, etc. includes an air cleaner case housing an element therein, and a case cover detachably attached to the cleaner case, with an outside air inlet opening on the case cover side. .

On the other hand, it is desirable that the vicinity of the outside air inlet be covered with a shielding plate from the viewpoint of dustproofing and waterproofing, but if such a shielding plate and the outside air inlet are to be integrated into the case cover, it will require a die-cut structure. becomes complicated, and the shape of the shielding plate is also subject to certain restrictions due to the die-cutting structure.

(Purpose of the invention) The present invention has been devised in view of the above-mentioned circumstances.The purpose of the present invention is to provide the outside air inlet in the case cover, the shielding plate in the air cleaner case, and the case cover. To provide an air cleaner in which an outside air inlet and a shielding plate can be molded without complicating the molding structure of each air cleaner case, and the shape of the shielding plate can also be molded into a desired shape.

(Structure of the invention) In order to achieve the above-mentioned object, the present invention opens an outside air inlet in the peripheral surface of the case cover that extends in the direction of the mating part with the air cleaner case, and connects the air cleaner with a shielding plate that covers the vicinity of the outside air inlet. It is characterized by being integrally formed extending from the case.

(Embodiment) A preferred embodiment of the present invention will be described below with reference to the accompanying drawings.

1 is a sectional plan view of the air cleaner, FIG. 2 is a partially cutaway side view of the scooter, FIG. 3 is a view taken in the direction of the arrows in FIG. 1, and FIG. 4 is a sectional view taken along the line -- in FIG.

1 is a scooter, 2 is a front wheel, and 3 is a rear wheel. A footrest floor 5 is provided on a body frame 4. A center cover 6 and a rear cover 7 are attached to the body frame 4. is sheet 8
will be established.

Inside the center cover 6 and rear cover 7,
A power unit 11 is provided with its front part pivotally supported on a vehicle body frame 4, and a shock absorber 12 is interposed between the upper part of the vehicle body frame 4 and the rear part of the power unit 11 to suspend and support a rear wheel 3 forming a driving wheel.

The power unit 11 has an engine 13 at the front.
A transmission case 1 that extends in the front and rear direction.
An air cleaner 21 is disposed above the air cleaner 4.

The air cleaner 21 includes an air cleaner case 23 in which brackets 22, 22 are integrally formed to be attached to the transmission case 14, and a case cover 25 that is detachably attached to the left side of the air cleaner case 23 via bolts 24, etc. The air cleaner element 26 is installed inside the air cleaner case 23, and both the air cleaner case 23 and the case cover 25 are made of synthetic resin.

The case cover 25 has a substantially flat surface portion 31.
A peripheral surface portion 33 is provided which is bent from the peripheral edge of this surface portion 31 and extends toward the air cleaner case 23 side, and whose tip end is formed at a mating portion 32 to the air cleaner case 23.

The outside air inlet 41 is connected to the peripheral surface 33 facing the front of the vehicle.
A has two openings 42, 42, and the outside air inlet 41 is a passage 4 extending a required length in the longitudinal direction of the vehicle.
3, and in the embodiment, wall portions 44, 45, 46, 4
7 and the upper and lower two passages 43a via the surface part 31,
43b was provided and communicated with the two openings 42, 42.

The air cleaner case 23 includes a surface portion 51 corresponding to the surface portion 31 and a circumferential surface portion 53 that is bent from the periphery of the surface portion 51 and has a distal end formed in a mating portion 52 to the case cover 25.

A tube 6 is provided on the peripheral surface 53a facing the front of the vehicle.
1 and connect the peripheral surface portion 53a via the tube 61.
A carburetor 62 is disposed in front of the engine 13, and the carburetor 62 and the engine 13 are connected through an intake pipe 63.

Furthermore, the openings 42, 4 are opened from the peripheral surface portion 53a.
A shielding plate 71 is integrally formed to extend so as to cover the vicinity of 2.

The shielding plate 71 is the front part 3 of the case cover 25.
3a and a wall portion 73 in which an opening 72 extending substantially along the opening 3a and matching the openings 42, 42 is formed;
Wall portions 74, 75 extending from the top, bottom and sides of 2;
76 and a wall 7 located in front of the openings 42, 42.
7, an opening 81 is formed to face the side of the carburetor 62, and a hole 82 for adjusting the carburetor is formed in the wall portion 76. A rib 82a for draining water is provided on the outer circumference and edge of the hole 82.

In the drawing, 90 is a gasket, 91 is an ignition coil, and 92 is a holding portion thereof.

Since the present invention is configured as described above, the shielding plate 7
1, it is possible to prevent dust, water, etc. from entering the air cleaner 21 from the outside air inlet 41.

Further, a peripheral surface portion 3 extending in the direction of a mating portion 32 with the air cleaner case 23 in the case cover 25
3a, the outside air inlet 41 is provided with openings 42, 42, and the shielding plate 71 is formed into a bowl shape that gradually expands to one side, so that the shielding plate 7 covers the vicinity of the openings 42, 42.
1 can be formed in the extending direction of the peripheral surface portion 53 of the air cleaner case 21, that is, in the die-cutting direction. Therefore, the shielding plate 71 can be formed in a desired shape without complicating the die-cutting structure of the air cleaner case 23. can be formed.

In addition, since the shielding plate 71 having the opening 81 and the carburetor adjustment hole 82 is located on the side of the carburetor 62, it is useful for preventing icing on the carburetor 62, and the adjustment of the carburetor 62 can be made using the opening 81 and the hole 82 for adjusting the carburetor. 82 without any trouble, and at the same time, the shielding plate 71 can protect the carburetor 62 from the outside.

(Effect of the invention) As is clear from the above explanation, according to the invention,
The outside air inlet and the shielding plate can be molded without complicating the molding structures of the case cover and the air cleaner case, and the shielding plate can also be molded into a desired shape.

[Brief explanation of the drawing]

FIG. 1 is a sectional plan view of the air cleaner, FIG. 2 is a partially cutaway side view of the scooter, FIG. 3 is a view taken along the arrow in FIG. 1, and FIG. 4 is a sectional view taken along the line -- in FIG. In the drawing, 21 is an air cleaner, 23 is an air cleaner case, 25 is a case cover, 26 is an element, 41 is an outside air inlet, 43 is a passage, and 71 is a shielding plate.

Claims (1)

[Scope of Claim for Utility Model Registration] In an air cleaner having a synthetic resin air cleaner case with an element inside and a case cover detachably attached to the air cleaner case, the case cover has a mating surface with the air cleaner case. An air cleaner characterized in that an outside air inlet having a passage of a predetermined length that is substantially parallel to a direction is integrally formed, and a shielding plate that covers a front surface of the outside air inlet is integrally formed and extends from the air cleaner case.