JPS5933893Y2 - Air cleaner mounting device - Google Patents

Description

[Detailed description of the invention] This invention relates to a mounting device for a round air cleaner that is mainly made of synthetic resin, and the tightening is performed reliably without deforming the parts and maintains sufficient sealing performance. The purpose is to

As shown in FIG. 1, a round air cleaner generally consists of a dish-shaped body 1, a cover plate 2, and an annular filtration element 3 sandwiched between the two. An eyelet-shaped sealing material 5 is applied to the center hole of the cover plate 2. To install it, a bolt 6 is installed upright at the inlet end of the carburetor of the vehicle engine, and this is connected to the body 1 and The sealing material 5 of the cover plate 2 is penetrated, and the central hole of the body 1 is fitted and placed on the inlet end of the carburetor, and the wing nut 7 is screwed onto the protruding upper end of the bolt 6, and the washer 7a is inserted. It is attached to the top of the vaporizer by tightening it through the screw.

By the way, if the air cleaner body was made of iron plate as in the past, the above problems would not occur when installing it, but recently, in order to reduce the weight and cost of the air cleaner body, the main body is made of composite material. The body 1 and the cover plate 2 are now made of synthetic resin, but their rigidity is insufficient, and when the wing nut 7 is tightened, the cover often collapses. When the plate 2 is tightened, the periphery of the plate becomes curved and deformed as shown in Figure 2 A9, and the degree of deformation worsens over time, creating a gap in the sealing area where outside air containing dust can enter. enters the clean side of the cleaner and no longer functions as an air cleaner.

Therefore, this idea was devised to eliminate this drawback, and even if it is made of synthetic resin with insufficient rigidity, it can ensure sufficient sealing performance even after long-term use without causing deformation. The present invention provides a mounting device that has the following features.

Fig. 3A 9 and Fig. 4 show examples of this invention, and in Fig. 3A 9, 11 and 12 are perforated plate-shaped bodies of a round air cleaner made of synthetic resin. The power bar plate has an annular filter element 13 housed and held therebetween, an intake pipe 14 is attached to one side of the body 11, and a cover plate 12.
An eyelet-shaped elastic sealing material 15 is attached to the center hole of the plate so as to sandwich the plate, and an eyelet-shaped elastic sealing material 15 is attached to the bottom surface around the center hole, and a portion slightly shorter than the bottom surface of the sealing material 15 and extending downwardly is provided on the outside of the elastic sealing material 15. A protruding annular protrusion 12a is formed.

The bolt 16, which is erected through the bridge piece at the inlet end of the carburetor of the vehicle engine, has a height that approximately corresponds to the height from the top surface of the bridge piece to the bottom surface of the annular protrusion 12a. ``'fi f l 6 a is provided.

To install it, first, place the body 11 containing the E-pass element 13 into the carburetor by passing the upper bolt 16 through the carburetor, fitting its center part into the inlet end of the carburetor, and then Cover plate 1 equipped with elastic sealing material 15
2 is placed over the body 11 without fitting the bolt 16 into the elastic sealing material 15, and the washer 17a is fitted into the protruding end of the bolt 16, and the wing nut 17 is screwed in. 11 and cover plate 12
is integrally mounted on top of the vaporizer.

In this case, an annular protrusion 12a is provided on the lower surface of the cover plate 12 around the center hole, and this abuts against the collar 16a on the bolt 16, so that the wing nut 1
7 is screwed in, the sealing material 15 is compressed and the annular protrusion 12a is stopped by the collar 16a, so that the cover plate 1
2 is hardly deformed, the tightening force is sufficiently maintained, and it is firmly attached.

As described above, in this invention, an elastic sealing material is attached to the central hole of the cover plate, and an annular shape that is shorter than the lower surface of the sealing material and protrudes downward on the lower surface of the lower surface around the central hole of the cover plate is formed on the outside of the elastic sealing material. The bolt, which stands on the bridge piece at the inlet end of the carburetor, has a flange that roughly matches the height from the top surface of the bridge piece to the bottom surface of the annular ridge. Since the lower ends of the strips are in contact with each other, the center hole of the cover plate is reinforced by the annular protrusion, and when the nut is tightened from above the cover plate, the annular protrusion touches the collar of the bolt. On the other hand, it is possible to prevent the central part of the cover plate from bending and deformation, and even if the air cleaner body is molded from synthetic resin, sufficient tightening force can be maintained, making the installation strong, and the sealing material Since the air cleaner is kept in a compressed state, the air cleaner can maintain a good seal even after long-term use, increasing the effectiveness of the air cleaner.

[Brief explanation of the drawing]

FIG. 1 is a sectional view of a conventional round air cleaner. FIG. 2A is an explanatory view showing the deformed state of the cover tightening section, and FIG. 3A is a sectional view of an embodiment of this invention. The same opening is a cross-sectional view of the center part of the cover plate. FIG. 4 is a plan view taken along line XX in FIG. 3. In the figure, 1, 11... Body, 2.12...
...Cover plate, 3,13...Filtering element, 12a...Annular protrusion, 5.15...
・・Elastic sealing material, 6゜16・・・・・・Bolt, 16
a...Brim, 7.17...Chou nut,
K... Carburizer, b... Bridge piece.

Claims (1)

[Scope of utility model registration request] An eyelet-shaped elastic sealing material 15 is attached to the center hole of the cover plate 12 of the round air cleaner made of synthetic resin material, and the sealing material 15 is placed on the outside of the elastic sealing material 15 on the lower surface around the center hole of the cover plate 12. An annular protrusion 12a that is shorter than the lower surface and protrudes downward is formed, and a bolt 16 that is installed upright on the bridge piece at the inlet end of the carburetor has a height from the upper surface of the bridge piece to the lower surface of the annular protrusion 12a. A collar 16a is provided so as to substantially coincide with the collar, and an annular protrusion 12 is provided on the collar 16a.
Air cleaner mounting device made by abutting the lower end of a.