JP2598067Y2 - Oil strainer - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement of an oil strainer used for, for example, a transmission of an automobile.

[0002]

2. Description of the Related Art As a conventional oil strainer of this kind,
Japanese Unexamined Utility Model Application Publication No. 2-81609 discloses a technique. Although not specifically shown, the conventional oil strainer has a configuration in which a main body is defined by an upper body and a lower body that are divided into two parts, and presents a single wavy shape inside the upper body and the lower body. Place the filter,
The entire periphery of the upper body and the lower body is joined by an injection molding cover while the periphery of the filter is held between the two bodies. Then, in actual use, the oil strainer having such a configuration is connected to an oil pump, and when the oil pump is operated, the oil in the oil pan flows from the inflow port opened on the lower body side to the upper body. And the lower body is sucked into a body body defined by the lower body, and is disposed in the body body.
The impurities are filtered by the single filter.

[0003]

Therefore, in the conventional oil strainer, since the entire peripheral edges of the upper body and the lower body are joined by the injection molding cover, the strainer itself can be easily assembled under a reliable cover sealing state. It has the advantage of being able to assemble, but on the other hand, regarding the arrangement of filters, since one filter is arranged inside the upper body and the lower body, even if the filter has a waveform shape, Naturally, the filtration area becomes small. For this reason, in the past, there was a tendency that the strainer itself was inevitably increased in size in order to obtain the required filtration capacity.

[0004]

This invention SUMMARY OF THE INVENTION has been developed to effectively solve the problems of斯Ru conventional oil strainer, it is defined by the upper body and lower body of volume de body has a temporarily assembled unit Assuming that an oil strainer is provided, the upper body and the lower body are provided with opening shapes that allow the passage of oil, while a filter is polymerized on the outside of each body, and the
Is it possible to partially hold down the right margin with temporary clips?
Thus, a configuration was adopted in which the entire periphery of the polymerization filter was joined with an injection molded cover.

[0005]

[Action] Depending, even in the present invention, since using an injection molding cover joining means, under a reliable coating sealed state, but it is of course possible to assemble the strainer itself easily, and A Ppabodi The lower body is provided with an opening shape that allows oil to pass through, and a configuration is adopted in which filters are superimposed on the outside of each body, so that the filtration area is greatly increased compared to conventional ones, and the strainer itself This can contribute to miniaturization.
In particular , since the cover is injection-molded in a state where the periphery of the polymerization filter is partially pressed by the temporary fixing clip, the injection molding process is very convenient.

[0006]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of an oil strainer according to a first embodiment of the present invention; FIG. 3 is premised, but the feature is that the following configuration is adopted. That is, as shown in FIG.
The lower body 3 is formed of a synthetic resin material into a box-like body having an opening shape allowing oil to pass therethrough, for example, a net shape.
And a plurality of elastic locking claws 5 and a shaft portion 6 are formed at a peripheral portion and a central portion on a lower surface side, and a plurality of step portions 7 are provided at a lower peripheral portion and a central portion of the lower body 3. A boss portion 8 is formed, and the two bodies 2 and 3 are locked by locking the elastic locking claws 5 to the step portion 7 and fitting each shaft portion 6 to the boss portion 8.
Can be temporarily assembled, and the projections 9 are formed intermittently at fixed intervals on the flange portions 2a, 3a of the bodies 2, 3.

In addition to the above, in the first embodiment, unlike the prior art, the outside of each of the bodies 2 and 3 having the above-described structure is provided with two
A configuration is adopted in which the two filters 10A and 10B are individually polymerized, and the entire opposite edges of the two filters 10A and 10B are joined together by the injection molding cover 13 together with the flange portions 2a and 3a. I have. The filters 10A and 10B are made of a mesh material or a non-woven fabric. In particular, the filter 10A to be polymerized on the upper body 2 side is provided with a hole 11 through which the suction port 4 is inserted. And put it.

Accordingly, when assembling the oil strainer having such a configuration, first, as shown in FIG. 2, the elastic locking claw 5 is locked to the step 7 and the shaft 6 is fitted to the boss 8 at the same time. After obtaining a temporarily assembled state of the upper body 2 and the lower body 3, the filter 1 is attached to the outside of the upper body 2.
0A is polymerized while inserting the suction port 4 into the hole 11, and the cap 1 is inserted into the suction port 4 from above the filter 10A.
2, the corresponding filter 10B is superposed on the outside of the lower body 3 while being fitted in a tightly sealed state. And
After that, if the cover 13 having a U-shaped cross section is injection-molded with respect to all opposing peripheral edges of the two filters 10A and 10B, the two filters 10A and 10B face each other at the same time when the cover 13 is formed. Since the entire periphery is securely joined with a sufficient cover sealing state, the strainer itself can be easily assembled as shown in FIG.

In addition, in the state of being joined by the injection molded cover 13, as shown in FIG.
Since the projections 9 are formed on the 3a, there is no fear that the cover 13 having a U-shaped cross section will fall off the flange portions 2a and 3a. Therefore, in the oil strainer of the first embodiment, the two filters 10A and 10B are disposed outside the upper body 2 and the lower body 3 that define the body main body 1 as compared with the related art. This makes it possible to increase the filtration area, which can contribute to downsizing of the strainer itself.

Next, an oil strainer according to a second embodiment will be described.
The configuration of the first embodiment is assumed as it is, except for the difference between the two filters 10A and 1A.
Cover 1 having a U-shaped cross section with respect to all opposing peripheral edges 0B
Prior to the injection molding of No. 3, a part of the opposing peripheral edges of the filters 10A and 10B was partially pressed in advance by a temporary fixing clip 14 having a U-shaped cross section as shown in FIGS. Under the condition, as shown in FIG. 6, the entire peripheral edges of the two filters 10A and 10B are covered and joined together with the respective temporary fixing clips 14 by the injection molding cover 13.

Therefore, it is needless to say that the above-described operation and effect can be expected even in the oil strainer of the second embodiment because the structure of the first embodiment is assumed as it is. The use of 14 eliminates the risk of the peripheral edges of the filters 10A and 10B being carelessly turned up, so that an advantage that the injection molding process of the cover 13 can be performed very simply and reliably can also be provided.

In each of the above embodiments, the upper body 2 and the lower body 3 are divided into two parts. However, the present invention is not limited to this.
Of the flange portions 2a and 3a can be connected to each other via a thin hinge portion, and the temporary assembling means of each of the bodies 2 and 3 is not limited to the above. However, the use of other known locking structures is optional depending on the implementation. However, the relationship between the shaft portion 6 and the boss portion 8 among the above-described temporary assembling means also functions as shape retaining means for the body 1.

In each of the above embodiments, the two filters 10A which are individually polymerized on the outside of each body 2 and 3 are used.
・ 10B is used, but also in this regard,
The present invention is not limited to this, and the filter is folded by using one filter having the size of two filters, and the body 2 or 3 is folded.
It is fully possible to polymerize continuously outside the polymer.

[0014]

[Effects of the Invention] As described above, the present invention employs a configuration in which openings are formed in the upper body and the lower body to allow the passage of oil, and filters are superimposed on the outside of each body. Compared with the filter installed inside, the filtration area was greatly increased, which could greatly contribute to downsizing of the strainer itself. Further, under the state where the periphery of the filter in the temporary fixing clip partially pressed, the injection molding joint cover, Do no periphery Makureru concern facing the filter, thereby, the cover There is an advantage that the injection molding process can be performed very simply and reliably.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing an oil strainer according to a first embodiment of the present invention.

FIG. 2 is a cross-sectional view showing a state where the strainer is joined by an injection molding cover.

FIG. 3 is a perspective view showing an assembled state of the oil strainer.

FIG. 4 is a perspective view showing a state before an oil strainer according to a second embodiment is joined with an injection molding cover.

FIG. 5 is an enlarged sectional view of a main part in the same state.

FIG. 6 is an enlarged sectional view of a main part showing a state of being finally joined by an injection molding cover.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Body main body 2 Upper body 2a Flange part 3 Lower body 3a Flange part 5 Elastic locking claw (temporary assembly means) 6 Shaft part (temporary assembly means) 7 Step part (temporary assembly means) 8 Boss part (temporary assembly means) 10A Filter 10B Filter 13 Injection molding cover 14 Temporary clip

Continuation of the front page (58) Field surveyed (Int.Cl. ⁶ , DB name) B01D 35/02 F01M 11/00

Claims (1)

(57) [Scope of request for utility model registration] 1. An oil strainer in which a body main body is defined by an upper body and a lower body having temporary assembling means, wherein the upper body and the lower body are provided with an opening shape that allows oil to pass therethrough, and the outer shape of each body is Each of the filters is polymerized, and the
Is it possible to partially hold down the right margin with temporary clips?
An oil strainer wherein the entire periphery of the polymerization filter is joined by an injection molded cover.