JPS5849414Y2 - Synthetic resin air cleaner - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an air cleaner installed in an internal combustion engine such as an automobile.

Recently, synthetic resin air IJs have been widely adopted in internal combustion engines for automobiles.

However, this has the disadvantage that it is inferior in rigidity to one made of steel plate, deforms, and is difficult to maintain a tight seal.

A particularly serious problem of this drawback is that the sealing on the talin side, ie, the air outlet side, of the filter element is impaired.

For example, a molded piece that integrally protrudes around a rectangular filter element is clamped at the joint between the open ends of the case and cover, the housing is formed by the case and cover, and an air inlet is formed in the cutout. Air cleaners with air outlets in the case are often made of plastic.

There is no problem with the dusty side and clean side compartments before and after the filter element because the gasket is made integrally with the filter element, but by holding this gasket, it is possible to seal the inside and outside of the housing. There are problems, especially sealing the inside and outside of the case on the Tallinn side.

For this purpose, a packing groove is provided at the opening end of the case, into which the packing is fitted, and the packing is pressed by the opening end of the cover, that is, the edge of the side wall.

When adopting such a structure, the filter element is supported by the inner peripheral edge of the packing groove provided at the edge of the side wall of the case, so the packing groove protrudes outward from the side wall and the bottom surface of the groove is The groove bottom is not rigid enough to withstand the pressing force applied from the cover through the packing, and the flatness of the groove bottom is distorted, resulting in poor sealing of the packing.

This idea is to solve the above problem,
Ribs are installed parallel to the case side wall in the direction of the pressing force on the outer wall, which is the bottom rear surface of the packing groove that protrudes from the side wall of the case, to increase rigidity and to reduce distortion in the flatness of the bottom of the packing groove. It was designed to do so.

This invention will be explained by examples.

The synthetic resin air cleaner 1 shown in FIG. 1 is constructed by butting together a cap 2 having an air inlet 3 and a case 4 having an air outlet 5, and inserting a fluid body 16 into the housing as shown in the sectional view of FIG. It accommodates.

A packing 15 made of urethane or the like is integrally formed around the flow body 16 and is fitted into a groove 12 at the opening end of the case.

The inner peripheral edge 11 of the groove 12 is substantially an extension of the side wall 13 of the case 4 and supports the overbody 16.

An outer peripheral edge 10 is provided extending from the side wall 13 by the width of the groove 12.

A rib 14 is provided on the bottom outer wall of the groove 12 in parallel and extending a distance M from the side wall 13.

The periphery of the open end of the cover 2 becomes a groove 7, and the inner periphery 9 thereof is an extension of the side wall of the cap 2. The lock 15 is pressed, and the outer periphery 8 of the groove 7 is fitted into the outer surface of the outer periphery 10 on the case 4 side. It will be done.

The cap 2 and the case 4 are fastened together with an appropriate number of clips (not shown) provided on the side wall 13.

In the synthetic resin air cleaner of this invention with the above structure, the case and cap are tightened by the clip, the gasket is pressed by the open end of the case, and even if the groove bottom of the case is under pressure, the ribs are parallel to the side wall on the back of the groove bottom. Since the groove bottom is vertically rotated, the necessary rigidity is given to the bottom of the groove, so there is no risk of sealing failure due to distortion.

In particular, this action is particularly effective against flatness irregularities in the bottom of the groove, which are likely to cause sealing failures, since the upper stage for sealing is also important between the outside and the tallin side.

[Brief explanation of the drawing]

FIG. 1 is a plan view showing the air cleaner of the present invention, and FIG. 2 is a front sectional view thereof. 2... Camp, 4... Case, 7,
12... Groove, 8, 10... Outer periphery, 9
, 11... Inner peripheral edge, 13... Side wall, 1
4...Rib, 15...Patsukin.

Claims (1)

[Scope of utility model registration request] The open end of a cover having an air inlet and a case having an air outlet are connected to form a housing, and a banking integrally formed around a filter element housed in the housing is sandwiched between the open end connecting portion of the case and the cover. In a synthetic resin air cleaner, a gasket groove is provided at the opening end of the case along the outer surface of the side wall of the case, and the gasket is fitted and the gasket is pressed at the open end of the cover, and a rib is formed on the bottom outer wall of the gasket groove. A synthetic resin air cleaner characterized by standing upright parallel to the side wall of the case.