JP2003182609A - Internal component fixing structure for reservoir tank - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an internal component fixing structure for a reservoir tank that reduces the manufacturing cost of a reservoir tank below a conventional level. <P>SOLUTION: The oil reservoir tank comprises a cylindrical reservoir (upper) 10 with an oiling port at the top, a reservoir (lower) 11 joined to the bottom of the reservoir (upper) 10, and a baffler 12 and a strainer 13 disposed in the tank. A baffler holding means is provided to hold the baffler 12 under pressure between the reservoir (upper) 10 and the reservoir (lower) 11. The strainer 13 and the baffler 12 are placed in order over the reservoir (lower) 11, and in the state, the reservoir (upper) 10 is joined to the reservoir (lower) 11 in covering fashion to hold the strainer 13 and the baffler 12 between the baffler holding means and the reservoir (lower) 11. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure for fixing internal components of a reservoir tank. More specifically, the present invention relates to a resin oil reservoir tank used for automobile power steering and the like, and a structure for fixing internal components of a reservoir tank that simplifies the assembly process.

[0002]

5 and 6 are views showing a conventional resin oil reservoir tank, FIG. 5 is an exploded perspective view, and FIG. 6 is an assembled sectional view. This oil reservoir tank includes a reservoir upper 1, a reservoir lower 2, a baffler 3, and a strainer 4. The reservoir upper 1 is formed of resin and has a cylindrical shape having an oil supply port 1a which is sealed by a cap 5 on the upper portion, and the reservoir lower 2 is formed of resin in a cup shape and has an oil inlet port. 2b and an oil outlet 2c.

The baffler 3 is formed of resin so that the oil guide portion 3b is supported by a ring-shaped frame 3a. Further, the strainer 4 is formed by surrounding a circular metal mesh 4b with a ring-shaped frame 4a. The respective members thus formed are assembled as shown in FIG. That is, baffler 3 and strainer 4
Is joined to the reservoir lower 2 by ultrasonic welding at the portion A, and the reservoir upper 1 and the reservoir lower 2 are
The parts are joined by vibration welding.

[0004]

In the conventional oil reservoir tank as described above, since there are two welding points, the ultrasonic welding section A and the vibration welding section B, there are two kinds of welding equipment and two kinds of welding equipment. There is a problem that a jig is required and the manufacturing cost becomes high.

In view of the above conventional problems, it is an object of the present invention to realize a structure for fixing the internal components of a reservoir tank in which the manufacturing cost is reduced compared to the conventional case in the oil reservoir tank.

[0006]

In order to achieve the above object, a structure for fixing internal components of a reservoir tank according to claim 1 of the present invention comprises a cylindrical reservoir upper 10 having an oil supply port on an upper part thereof, and the reservoir upper. In an oil reservoir tank including a reservoir lower 11 joined to a lower portion of the tank 10, a baffler 12 and a strainer 13 provided inside the tank, the baffler 1 is provided between the reservoir upper 10 and the reservoir lower 11.
A baffler holding means for pressing and holding 2 is provided, and the strainer 13 and the baffler 12 are sequentially placed on the upper surface of the reservoir lower 11, and in that state, the reservoir upper 1
It is characterized in that it is covered with 0 and joined to the reservoir lower 11, and the strainer 13 and the baffler 12 are held between the baffler holding means and the reservoir lower 11. Further, the baffler holding means is a step 14 provided on the inner circumference of the reservoir upper 10 and supporting the upper surface of the outer peripheral portion of the baffler 12 in the second aspect. A third aspect of the present invention is characterized in that the baffler holding means is a cylindrical rib 15 provided between the inner surface of the upper portion of the reservoir upper 10 and the upper surface of the baffler 12. Further, a fourth aspect of the present invention is characterized in that the baffler holding means is a plurality of ribs 16 provided on the inner periphery of the reservoir upper 10 and supporting the upper surface of the outer peripheral portion of the baffler 12.

By adopting this structure, the baffler and the strainer are sandwiched by the reservoir upper and the reservoir lower, so that there are only two welding points in the prior art, and the cost can be reduced.

[0008]

1 and 2 are views showing a first embodiment of a structure for fixing internal components of a reservoir tank according to the present invention. FIG. 1 is an exploded perspective view and FIG. 2 is an assembly view. , Fig. 2
2A is a sectional view, and FIG. 2B is an enlarged view of a B portion of FIG. 2A. In both figures, reference numeral 10 is a reservoir upper, 11 is a reservoir lower, 12 is a baffler, and 13 is a strainer.

The reservoir upper 10 is made of resin and has a cylindrical shape having an oil supply port 10a provided at an upper part, an oil inlet port 10b provided at a lower part, and a flange part 10c, and further the cylindrical upper part of the cylindrical part. Buffler 1 inside
Step portion 14 as a holding means for holding 2 (see FIG. 2)
Is formed, and in order to form the step portion 14, a recess 10d is formed on the outer periphery of the cylindrical portion. The stepped portion 14 and the recessed portion 10d may be provided on the entire circumference of the cylindrical portion or only partially as shown in the drawing. Also,
As shown in FIG. 2, the stepped portion 14 is a reservoir upper 1
It is provided at a position equal to the height of the baffler 12 from the bottom of 0.

The reservoir lower 11 is formed of resin into a cup shape having a flange 11a, and is provided with an oil outlet 11b and a cylindrical strainer support portion 11c inside. In addition, the convex portion 11d is formed on the flange 11a.
Are formed. The baffler 12 is made of resin so that the oil guide portion 12b is supported by the cylindrical rib 12a. Further, in the strainer 13, a ring-shaped resin frame 13a is inserted on the outer periphery of a circular metal or resin mesh 13b.

The members thus formed are shown in FIG. 2 (a).
It is assembled as follows. That is, the strainer 13 and the baffler 12 are placed on the reservoir lower 11,
The reservoir upper 10 is covered from above, and the flange portion 10c and the flange portion 11 of the reservoir lower 11 are covered.
The convex portion 11d of a is joined by vibration welding. The present embodiment assembled in this manner is shown in FIG.
As shown in (b), the strainer 13 has the reservoir lower 11
The baffler 12 supported by the strainer 13 and placed on the strainer 13 is pressed by the step portion 14 of the reservoir upper 10 and fixed together with the strainer 13. Since the present embodiment configured as described above has only one welding point, the cost can be reduced as compared with the conventional case.

3A and 3B are views showing a second embodiment of a structure for fixing internal components of a reservoir tank according to the present invention, wherein FIG. 3A is an assembled sectional view and FIG. 3B is a perspective view of an essential part. The present embodiment is different from the previous embodiment in that instead of the step portion 14 that is the baffler holding means of the previous embodiment, a cylindrical rib 15 that reaches from the upper surface of the baffler 12 to the upper inner surface of the reservoir upper 10 is provided. That is. The present embodiment configured in this way has a cylindrical rib 15 as shown in FIG.
Since the baffler 12 can be pressed by this, it has the same effect as the previous embodiment.

4A and 4B are views showing a third embodiment of a structure for fixing internal components of a reservoir tank according to the present invention. FIG. 4A is an assembled sectional view, and FIG. 4B is a main part of the reservoir upper viewed from below. It is a perspective view. The difference of the present embodiment from the first embodiment is that, instead of the step 14 of the first embodiment, a large number of fin-shaped ribs 16 that can press the upper portion of the baffler 12 are provided. That is. In this embodiment having such a configuration, the rib 16 is provided as shown in FIG.
Since the baffler 12 can be pressed by this, the same operational effect as that of the first embodiment is obtained.

[0014]

According to the internal component fixing structure of the reservoir tank of the present invention, since there is only one welding point,
The cost can be reduced compared to the conventional two locations.

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing a first embodiment of an internal component fixing structure for a reservoir tank according to the present invention.

FIG. 2 is a diagram showing a first embodiment of a structure for fixing internal components of a reservoir tank according to the present invention, in which (a) is a sectional view,
(B) is an enlarged view of a B portion of (a).

3A and 3B are views showing a second embodiment of the internal component fixing structure for a reservoir tank according to the present invention, wherein FIG. 3A is an assembled sectional view and FIG.

4A and 4B are views showing a third embodiment of a structure for fixing internal components of a reservoir tank according to the present invention, in which FIG. 4A is an assembled sectional view and FIG. 4B is a perspective view of a main part of the reservoir upper as viewed from below. Is.

FIG. 5 is an exploded perspective view showing an example of a conventional oil reservoir tank.

FIG. 6 is an assembly exploded perspective view showing an example of a conventional oil reservoir tank.

[Explanation of symbols]

10 ... Reservoir upper 10a ... Refueling port 10b ... Oil inlet 10c, 11a ... Flange 10d: concave portion 11 ... Reservoir lower 11b ... Oil outlet 11c ... Strainer support 12 ... Buffler 12a ... Cylindrical rib 12b ... oil guiding part 13 ... Strainer 13a ... Resin frame 13b ... Metal or resin mesh 14 ... Step 15 ... Cylindrical rib 16 ... rib

Claims (4)

[Claims] 1. A cylindrical reservoir upper (10) having an oil supply port on the upper part thereof, and the reservoir upper (10).
An oil reservoir tank comprising a reservoir lower (11) joined to the lower part of a tank, a baffler (12) and a strainer (13) provided inside the tank, wherein the reservoir upper (10) and the reservoir lower (1
Baffler holding means for pressing and holding the baffler (12) is provided between the strainer (1) and the strainer (1) on the upper surface of the reservoir lower (11).
3) and the baffler (12) are sequentially placed, and in that state, the reservoir upper (10) is covered and joined to the reservoir lower (11), and the strainer (13) and the baffler (12) are connected to the baffler holding means and the reservoir lower. (11) A structure for fixing internal components of a reservoir tank, characterized in that it is held between (11). 2. The baffler holding means is a step (14) provided on an inner circumference of the reservoir upper (10) and supporting an upper surface of an outer peripheral portion of the baffler (12). Fixed structure for internal components of reservoir tank. 3. The baffler holding means comprises a baffler (12) and an inner surface of an upper portion of the reservoir upper (10).
The internal component fixing structure for a reservoir tank according to claim 1, wherein the structure is a cylindrical rib (15) provided between the upper surfaces of the two. 4. The baffler holding means is a plurality of ribs (16) provided on an inner periphery of the reservoir upper (10) and supporting an upper surface of an outer peripheral portion of the baffler (12). 1. The structure for fixing the internal components of the reservoir tank according to 1.