JPS6138345B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an air cleaner device for a motorcycle or the like.

In general, air cleaner devices for motorcycles and the like are required to be small and simple in structure, and to allow easy attachment and detachment of air cleaner elements. A conceivable solution that satisfies these requirements is a structure in which a plate-shaped air cleaner element is inserted from the side into the case body of the air cleaner, and the plate-shaped air cleaner element divides the case body into two chambers. However, in the case of such a structure, it is difficult to obtain airtightness between the air cleaner element and the case body and to hold the air cleaner element. Therefore, if such a structure is to be put into practical use, it is necessary to adopt a structure that can securely hold the air cleaner element and provide airtightness.

The present invention has been made based on the above circumstances, and its object is to provide an air cleaner device that can securely hold an air cleaner element and also provide sufficient airtightness.

That is, in order to achieve the above object, the present invention
The inside of the box-shaped case body is divided into two chambers by a plate-shaped air cleaner element, and an opening for inserting and removing the air cleaner element is formed on one side of the case body. In an air cleaner device equipped with a lid that is pressed into the main body to prevent it from coming off, the outer periphery of the air cleaner element is surrounded by a frame, and a guide wall for receiving the peripheral edge of the air cleaner element is formed on the inner surface of the case main body. A portion of the inner surface of the case body that faces the opening faces the guide wall at a predetermined distance, and the peripheral edge of the air cleaner element on the insertion tip side is sandwiched between the guide wall and the guide wall. A locking wall is formed at the end of the frame that faces the locking wall, and when the air cleaner element is pressed into the case body with the lid placed over the opening, the tip of the locking wall slides. The present invention is characterized in that a tapered slope portion is formed that contacts the frame body toward the guide wall and presses the peripheral edge of the air cleaner element onto the guide wall.

The present invention will be described below with reference to embodiments shown in the drawings. 1 to 5 show a first embodiment of the present invention. In the figure, 1 is the body of a motorcycle, 2 is an engine, and 3 is a carburetor. and,
An air cleaner device 4 is provided on the suction side of the carburetor 3, and the air cleaner device 4 is disposed between a seat pillar tube 5 and a backstay 6 of the vehicle body 1. Reference numeral 7 denotes a case body of this air cleaner device 4, which is shaped like a square box. An inlet 10 and an outlet 11 are formed in both end walls 8 and 9 of the case body 7, respectively, and the outlet 11 is connected to the vaporizer 3. An opening 12 is formed in the side surface of the case body 7 located on the left side of the vehicle body 1. A lid 13 is fitted to the opening 12 in an airtight manner, and the lid 13 is attached to the case body 7 with bolts (not shown) or the like. The side walls 14, 1 of this case body 7
A protruding guide wall 17 that continues in the circumferential direction is integrally provided at approximately the center of the inner surfaces of the members 5 and 16. Further, on the inner surface of the side wall 14 facing the opening 12, a protruding locking wall 18 is provided on the inflow port 10 side of the guide wall 17 at a predetermined distance from the guide wall 17 and parallel to the guide wall 17. It is integrally protruded. Further, from the edge of the end wall 9 on the outlet 11 side of the case body 7 on the opening 12 side, a retaining wall 19 is integrally provided along the opening surface, and both ends of the retaining wall 19 are connected to the side wall 1.
5, 16 are integrally continuous with the inner surface. The leading end edge of the engaging wall 19 is formed in an L-shape toward the opening 12, and constitutes an engaging portion 20. The front end surface of the engaging portion 20 is located on the same plane as the surface of the guide wall 17 on the inlet 10 side, and the engaging portion 20 is configured to be continuous with the guide wall 17. An air cleaner element 21 is inserted into the case body 7. The air cleaner element 21 is made of open-cell urethane foam, and has a rectangular plate shape that fits tightly into the inner surface of the case body 7.
Further, on one side of the air cleaner element 21, fine hairs 22 are implanted all over. A frame 23 is superimposed on one side of the air cleaner element 21, and a wire mesh 24 for extinguishing flame in the event of backfire is superimposed on the other side. The frame body 23 has a rectangular shape corresponding to the cross-sectional shape of the case body 7, and a flange 25,
25 is integrally provided to protrude, and collar portions 26 are integrally provided to protrude inward from the side wall 14 of the case body 7 and the side edge portion corresponding to the opening 12. Further, tapered slope portions 27 are formed on the upper surface of the end portion of the frame body 23 corresponding to the side wall 14, and an engaging protrusion 28 is formed downward from the side edge portion corresponding to the opening 12. is integrally provided, and the tip thereof is formed inward in an L-shape. Further, a reinforcing bar 29 is integrally formed in the center of the frame 23. And these frames 23,
The air cleaner element 21 and the wire mesh 24 are inserted into the case body 7 with the flocked surface of the air cleaner element 21 facing the inlet 10 side and along the guide wall 17. Then, the slope portions 27, 27 at the ends of the frame body 23 are inserted between the guide wall 17 and the locking wall 18 of the case body 7, and the slope portions 27, 27 are inserted at the tip of the locking wall 18. By sliding the frame 23 along the guide wall 17, the frame 23 is biased closer to the guide wall 17, and the end of the frame 23 on the opening 12 side touches the engagement portion of the engagement wall 19 during insertion. 20 , and the locking protrusion 28 of the frame body 23 is locked to the back surface of the locking portion 20 . Therefore, the peripheral edge of the air cleaner element 21 is connected to the flanges 25, 25, 2 of the frame 23.
6 and 26 and the guide wall 17 and the engaging portion 20, and this elastic force supports the frame 23, the air cleaner element 21, and the wire mesh 24, and also supports the air cleaner element 21.
The edges of the case body 7 are compressed and come into close contact with the guide wall 17 and the inner surface of the case body 7, thereby providing airtightness. Further, a pressing protrusion 30 is provided on the inner surface of the lid body 13.
is formed, and the tip of this pressing protrusion 30 is connected to the frame 23
These frames 23 etc. are in contact with the side surface of the guide wall 1.
This prevents it from slipping out in the direction along line 7.

The first embodiment of the present invention configured as described above is as follows:
The air cleaner element 21 can be easily attached and detached by simply removing the lid 13 and inserting and removing the frame 23, air cleaner element 21, and wire mesh 24 together. Also, air cleaner element 2
1 is compressed, and is supported by its elastic force and is in close contact with the guide wall 17, etc., so that sufficient airtightness is obtained.

Note that the present invention is not limited to the first embodiment described above, and a second embodiment of the present invention is shown in FIGS. 6 to 8. Reference numeral 37 in the figure denotes a frame body, and this frame body 37 has an L-shaped cross section and is configured to tightly fit into the upper edge of the air cleaner element 21. Further, on the upper surface of this frame 37, a pair of pressing pieces 38, 3 are provided parallel to the insertion direction of this frame 37.
8 are integrally protruded, and these pressing pieces 38, 3
Slope portions 39 are formed at both ends of the groove 8. Further, a guide wall 40 is provided on the inner surface of the lid body 13 to protrude so as to be continuous with the guide wall 17 of the case body.
Further, a locking wall 41 is provided in a protruding manner opposite to this. Then, the air cleaner element 21 and the wire mesh 24 are stacked on this frame body 37, and these are inserted into the case body 7, and one end of these is fitted between the guide wall 17 and the locking wall 18 of the case body 7.
Further, the other end is a guide wall 40 and a locking wall 41 of the lid body 13.
It is inserted between. And this frame 37
The slope portions 39 of the pressing pieces 38, 38 abut against the locking walls 18, 41, causing the frame 37 to move toward the guide wall 1.
7, 40 so that this frame body 37
The peripheral edge of the air cleaner element 21 is compressed between the guide walls 17 and 40. Note that the tip portions of the locking walls 18 and 41 are connected to the pressing piece portion 3.
The sloped portions 39 of 8 and 38 are chamfered so as to be in close contact with them.

The second embodiment has the same structure as the first embodiment except for the above-mentioned points, so parts corresponding to those of the first embodiment in FIGS. 6 to 8 are denoted by the same reference numerals. The explanation will be omitted.

According to the present invention detailed above, when the air cleaner element is inserted between the guide wall and the locking wall,
Since the peripheral edge of the air cleaner element is automatically pressed against the guide wall, the air cleaner element can be held securely without shaking within the case body. Moreover, since the air cleaner element is in close contact with the guide wall without any gaps,
There are advantages such as sufficient airtightness of the mounting area of the air cleaner element.

[Brief explanation of the drawing]

1 to 5 show a first embodiment of the present invention, FIG. 1 is a side view of a motorcycle equipped with the air cleaner device of the present invention, FIG. 2 is a plan view thereof, and FIG. 3 is a first embodiment of the present invention. FIG. 4 is a cross-sectional view taken along the line - in FIG. 3, and FIG. 5 is an exploded perspective view of the air filter element and the frame. 6 to 8 show the second embodiment, FIG. 6 is a longitudinal sectional view, and FIG. 7 is a - of FIG. 6.
FIG. 8 is an exploded perspective view of the air cleaner element and the frame. 7... Case body, 12... Opening, 13... Lid body, 14, 15, 16... Side wall, 17... Guide wall, 21... Air cleaner element, 23...
Frame body, 18... locking wall, 27, 39... slope part,
31...Frame body, 37...Frame body.

Claims (1)

[Claims] 1. A box-shaped case main body is divided into two chambers by a plate-shaped air cleaner element, and an opening for inserting and removing the air cleaner element is formed on one side of the case main body. In an air cleaner device in which the opening is equipped with a lid that presses the air cleaner element into the case body to prevent it from falling out, the outer periphery of the air cleaner element is surrounded by a frame, and the periphery of the air cleaner element is attached to the inner surface of the case body. A guide wall is formed to receive the air cleaner element, and a portion of the inner surface of the case body that faces the opening is opposed to the guide wall at a predetermined distance, and the insertion tip side of the air cleaner element is formed between the guide wall and the guide wall. A locking wall is formed to sandwich the peripheral edge, and at the end of the frame facing the locking wall,
When the air cleaner element is pressed into the case body with the lid placed over the opening, it slides into contact with the tip of the locking wall and presses the frame toward the guide wall,
An air cleaner device characterized in that a tapered slope portion is formed to press a peripheral edge portion of the air cleaner element onto a guide wall.