JP3139199B2 - Motorcycle air cleaner - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air cleaner for a motorcycle, in which a filter can be easily attached and detached.

[0002]

2. Description of the Related Art Motorcycles use air from which dust is removed by an air cleaner for intake of an engine. And since the air cleaner is attached to the front upper part of the rear wheel behind the cylinder part of the engine,
There are many restrictions on the shape. As shown in FIG. 6, the air cleaner has a filter E attached to a filter holder D fitted into a frame bone C provided around an inside of an air supply port B on the front side of a cleaner case A. A wing bolt F is inserted into a hole provided in the center of D and fastened to a frame bone C for attachment.

[0003] Further, instead of the wing bolt, there is a type in which a rear end projection of a filter holder is pressed by a lever rotatably mounted inside the rear surface of the cleaner case to press the filter. For example, see Japanese Utility Model Laid-Open No. 160768/1987.

[0004]

In the case where the wing bolt F is inserted from the rear side, the rear side of the cleaner case A is
Unless a large opening is provided, it is not possible to operate the wing bolt F while viewing it, and it is difficult to attach and detach the filter E. Further, in Japanese Utility Model Laid-Open No. 62-160768, a presser piece for fixing a lever for holding the filter holder must be separately provided, and the lever must be fixed, so that attaching and detaching the presser piece is troublesome.

In view of the above, according to the present invention, the filter holder on which the filter is mounted can be attached with the stopper piece, and the stopper piece can be attached / detached while looking from the upper air inlet, so that the attachment / detachment of the filter becomes convenient. The purpose is to obtain a motorcycle air cleaner.

[0006]

To achieve the above object, according to the solution to ## air cleaner of the motorcycle of this invention, chestnut
An air inlet is provided on the top of the cleaner case and the
Provide an air inlet on the front side of the cleaner case, and
Motorcycle with the rear surface slanting rearward and upward.
In the air cleaner, fit the filter attached to the filter holder into the rib provided around the air inlet of the cleaner case, and insert the protrusion of the stopper piece into the hole provided in the center of the filter and the filter holder. Presser,
The rear part of the stopper piece is visually recognized from the air inlet when viewed from above.
The cleaner case is disposed at a possible position, and the wing bolt is passed downward from the upper side of the receiving piece projecting from the rear surface of the cleaner case and fastened.
And the rear part of the stopper piece is formed in a reverse concave shape in cross section,
The reason is that it is fitted to the receiving piece of the cleaner case.

[0007]

[Function] The filter can be detached integrally with the filter holder by removing the stopper piece. Since the wing bolts for fixing the stopper pieces are tightened downward, the wing bolts can be visually operated from the air inlet on the upper surface of the cleaner box, and the attachment / detachment work becomes convenient. Then, the position of the stopper piece can be easily determined by fitting the inverted concave section of the stopper piece into the receiving piece.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. The cleaner case 1 is made of synthetic resin which is molded separately in front and rear, and is provided with a rib 3 around an air supply port 2 on the front side. In the air supply port 2,
The intake port 4 made of an elastic body is connected. The filter 5 made of a porous material has a bowl shape, and is attached to a frame-shaped filter holder 6. The filter 5 is fitted into the rib 3 of the cleaner case 1 together with the filter holder 6.

The stopper piece 7 has a projection 9 at the center of a circular flange 8 on the front side, an inverted concave section 10 on the rear side, and bolt holes 11 at the top and bottom at the center. The stopper piece 7 inserts the protrusion 9 into the hole 12 provided in the center of the filter 5 and the filter holder 6 and presses it from the rear side. Inside the rear surface of the cleaner case 1, a receiving piece 13 is provided.
Are integrally formed and protruded, and a nut 14 is attached to the receiving piece 13 by an insert or heat welding in accordance with the hole in the vertical direction. The stopper piece 7 has an inverted concave cross section 10 fitted to the distal end of the receiving piece 13, and a wing bolt 15 is inserted from above to be fastened to the nut 14. An air inlet 16 is provided on the upper surface of the cleaner case 1, and the wing bolt 14 can be attached and detached while looking through the air inlet 16.

By removing the wing bolt 14 and extracting the stopper piece 7, the filter 5 can be attached and detached together with the filter holder 6. Moreover, the stopper piece 7 and the wing bolt 15 are attached to the cleaner case 1.
It is easy to assemble because it can be operated while looking through the large air inlet 16 on the upper surface of the device.

[0011]

As described above, since the present invention is constructed as described above, the filter 5 and the filter holder 6 can be mounted only by holding down the stopper piece 7 from the rear side, and the stopper piece 7 is stopped. The wing bolts 15 can be operated while being viewed from the upper air inlet 16 and can be easily assembled. In addition, since the stopper piece 7 is formed so that the portion formed in the inverted concave cross section 10 is fitted to the receiving piece 13, positioning can be easily performed. Only the frame-shaped filter holder 6 is provided inside the filter 5 so that the air resistance can be reduced. Further, the receiving piece 13 can be formed at a low cost, for example, by being integrally formed with the cleaner case 1.

[Brief description of the drawings]

FIG. 1 is a vertical sectional side view showing a main part of an embodiment of the present invention.

FIG. 2 is a plan view showing an embodiment of the present invention.

FIG. 3 is a longitudinal side view of a stopper piece showing an embodiment of the present invention.

FIG. 4 is a front view of a stopper piece showing an embodiment of the present invention.

FIG. 5 is a rear view of the stopper piece showing the embodiment of the present invention.

FIG. 6 is a longitudinal sectional side view showing a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Cleaner case 2 Air supply port 3 Rib 5 Filter 6 Filter holder 7 Stopper piece 9 Projection 10 Reverse concave shape in cross section 12 Hole 13 Receiving piece 15 Wing bolt

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int. Cl. ⁷ , DB name) F02M 35/024 501 B62J 39/00 F02M 35/16

Claims (2)

(57) [Claims] An air inlet is provided on an upper surface of a cleaner case.
And an air vent at the front of the cleaner case.
And the rear surface of the cleaner case
In the motorcycle air cleaner to be installed, fit the filter attached to the filter holder into the rib provided around the air inlet of the cleaner case, and insert the protrusion of the stopper piece into the hole provided in the center of the filter and filter holder. Hold down the rear part of the stopper piece as viewed from above
At a position visible from the air inlet.
, The air cleaner of the motorcycle, characterized in that so as to fastened through downward wing bolt superimposed from above receiving piece projecting from the surface inside after the cleaner case. 2. The air cleaner for a motorcycle according to claim 1, wherein a rear portion of the stopper piece is formed in an inverted concave cross section so as to be fitted to a receiving piece of a cleaner case.