JP3950334B2 - Internal structure fixing structure of reservoir tank - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an internal component fixing structure of a reservoir tank. More specifically, the present invention relates to a structure for fixing internal components of a reservoir tank in which an assembly process is simplified in a resin oil reservoir tank used for automobile power steering or the like.
[0002]
[Prior art]
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. The 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 a resin and has a cylindrical shape having an oil supply port 1a sealed at the top with a cap 5, and the reservoir lower 2 is formed of a resin in a cup shape and has an oil inlet. 2b and an oil outlet 2c.
[0003]
The baffle 3 is formed so that the oil guiding portion 3b is supported by a ring-shaped frame 3a with resin. The strainer 4 is formed by surrounding the outer periphery of a circular metal mesh 4b with a ring-shaped frame 4a.
Each member formed in this way is assembled as shown in FIG. That is, the baffle 3 and the strainer 4 are joined to the reservoir lower 2 by ultrasonic welding at the portion A, and the reservoir upper 1 and the reservoir lower 2 are joined at the portion B by vibration welding.
[0004]
[Problems to be solved by the invention]
In the conventional oil reservoir tank as described above, since there are two welding locations of the ultrasonic welding portion A and the vibration welding portion B, two types of welding equipment and two types of jigs are required, and the manufacturing cost is low. There is a problem of becoming higher.
[0005]
In view of the above-described conventional problems, an object of the present invention is to realize an internal component fixing structure for a reservoir tank that can be manufactured at a lower cost than the conventional oil reservoir tank.
[0006]
[Means for Solving the Problems]
To achieve the above object, the internal structure fixing structure of the reservoir tank of the present invention includes a cylindrical reservoir upper 10 having an oil filler port at the upper part, and a reservoir lower 11 joined to the lower part of the reservoir upper 10; In an oil reservoir tank comprising a baffle 12 and a strainer 13 provided inside the tank, baffle holding means for pressing and holding the baffle 12 is provided between the reservoir upper 10 and the reservoir lower 11, and the upper surface of the reservoir lower 11 In this state, the strainer 13 and the baffle 12 are sequentially placed, and the reservoir upper 10 is put on and joined to the reservoir lower 11, and the strainer 13 and the baffler 12 are held between the baffle holding means and the reservoir lower 11.
In the internal component fixing structure of the first embodiment of the present invention, the baffle holding means is a step 14 provided on the inner periphery of the reservoir upper 10 and supporting the upper surface of the outer periphery of the baffle 12, and the step 14 is It is formed by forming a concave portion 10d on the outer periphery of a cylindrical reservoir upper 10 (that is, a cylindrical portion).
In the internal component fixing structure of the second aspect of the present invention, the baffle holding means is a cylindrical rib 15 provided so as to reach the upper inner surface of the reservoir upper 10 from the upper surface of the baffle 12 , and the cylindrical rib 15 is characterized in that the baffle 12 is pressed by coming into contact with the upper inner surface of the reservoir upper 10.
[0007]
By adopting this configuration, the baffler and the strainer are sandwiched between the reservoir upper and the reservoir lower, so that the conventional two welding locations become one location, and the cost can be reduced.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
1 and 2 are views showing a first embodiment of the internal component fixing structure of a reservoir tank according to the present invention. FIG. 1 is an exploded perspective view, FIG. 2 is an assembly view, and FIG. Sectional drawing and FIG.2 (b) are the B section enlarged views of Fig.2 (a). In both figures, reference numeral 10 is a reservoir upper, 11 is a reservoir lower, 12 is a baffler, and 13 is a strainer.
[0009]
The reservoir upper 10 is made of resin and has a cylindrical shape having an oil supply port 10a provided at the upper portion, an oil inlet 10b and a flange portion 10c provided at the lower portion, and further inside the cylindrical portion. A step portion 14 (see FIG. 2) as a holding means for holding the baffle 12 is formed, and a concave portion 10d is formed on the outer periphery of the cylindrical portion in order to form the step portion 14. The stepped portion 14 and the recessed portion 10d may be provided on the entire circumference of the cylindrical portion or partially as shown in the figure. Further, as shown in FIG. 2, the stepped portion 14 is provided at a position equal to the height of the baffle 12 from the bottom of the reservoir upper 10.
[0010]
The reservoir lower 11 is formed in a cup shape having a flange 11a with resin, and is provided with an oil outlet 11b and a cylindrical strainer support portion 11c inside. In addition, the convex part 11d is formed in the flange 11a. The baffle 12 is formed of resin so that the oil guiding portion 12b is supported by the cylindrical rib 12a. Moreover, the strainer 13 has inserted the outer periphery of the circular metal or resin mesh 13b with the ring-shaped resin frame 13a.
[0011]
Each member formed in this way is assembled as shown in FIG. That is, the strainer 13 and the baffle 12 are placed on the reservoir lower 11, and the reservoir upper 10 is covered from above, and the flange portion 10 c and the convex portion 11 d of the flange portion 11 a of the reservoir lower 11 are vibration welded. Are joined together. In this embodiment assembled in this way, as shown in FIG. 2B, the strainer 13 is supported by the reservoir lower 11, and the baffle 12 placed on the strainer 13 is pressed by the stepped 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.
[0012]
3A and 3B are views showing a second embodiment of the internal component fixing structure of the reservoir tank of the present invention. FIG. 3A is an assembled cross-sectional view, and FIG. This embodiment differs from the previous embodiment in that instead of the stepped portion 14 that is the baffle holding means of the previous embodiment, a cylindrical rib 15 that reaches the upper inner surface of the reservoir upper 10 from the upper surface of the baffle 12 is provided. That is. The present embodiment configured as described above has the same effects as the previous embodiment because the baffle 12 can be pressed by the cylindrical rib 15 as shown in FIG.
[0013]
FIGS. 4A and 4B are views showing a third embodiment of the internal component fixing structure of the reservoir tank of the present invention. FIG. 4A is an assembled cross-sectional view, and FIG. 4B is a perspective view of the main part when the reservoir upper is viewed from below. is there. This embodiment is different from the first embodiment in that a plurality of fin-like ribs 16 that can press the upper portion of the baffle 12 are provided instead of the step 14 of the first embodiment. That is. This embodiment configured as described above has the same effects as the first embodiment because the baffle 12 can be pressed by the rib 16 as shown in FIG.
[0014]
【The invention's effect】
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 as compared with the conventional two points.
[Brief description of the drawings]
FIG. 1 is an exploded perspective view showing a first embodiment of an internal component fixing structure of a reservoir tank of the present invention.
2A and 2B are diagrams showing a first embodiment of the internal component fixing structure of the reservoir tank of the present invention, in which FIG. 2A is a cross-sectional view, and FIG. 2B is an enlarged view of a portion B in FIG.
FIGS. 3A and 3B are diagrams showing a second embodiment of the internal component fixing structure of the reservoir tank of the present invention, in which FIG. 3A is an assembled cross-sectional view, and FIG.
FIGS. 4A and 4B are views showing a third embodiment of the internal component fixing structure of the reservoir tank of the present invention, wherein FIG. 4A is an assembled cross-sectional view, and FIG. It is.
FIG. 5 is an exploded perspective view showing an example of a conventional oil reservoir tank.
FIG. 6 is an exploded perspective view showing an example of a conventional oil reservoir tank.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 ... Reservoir upper 10a ... Oil supply port 10b ... Oil inflow port 10c, 11a ... Flange part 10d ... Recess 11 ... Reservoir lower 11b ... Oil outlet 11c ... Strainer support part 12 ... Baffler 12a ... Cylindrical rib 12b ... Oil guide part 13 ... Strainer 13a ... Resin frame 13b ... Metal or resin mesh 14 ... Step 15 ... Cylindrical rib 16 ... Rib

Claims (2)

A cylindrical reservoir upper (10) having an oil filler port at the top, a reservoir lower (11) joined to the bottom of the reservoir upper (10), a baffle (12) and a strainer (13) provided inside the tank, In an oil reservoir tank comprising:
Baffle holding means for pressing and holding the baffle (12) is provided between the reservoir upper (10) and the reservoir lower (11),
The strainer (13) and the baffle (12) are sequentially placed on the upper surface of the reservoir lower (11), and in this state, the reservoir upper (10) is put on and joined to the reservoir lower (11), and the strainer (13) and Holding the baffle (12) between the baffle holding means and the reservoir lower (11);
The baffle holding means is a step (14) provided on the inner periphery of the reservoir upper (10) and supporting the upper surface of the outer periphery of the baffle (12).
The step (14) is formed by forming a recess 10d on the outer periphery of the cylindrical reservoir upper, and the internal component fixing structure for the reservoir tank, A cylindrical reservoir upper (10) having an oil filler port at the top, a reservoir lower (11) joined to the bottom of the reservoir upper (10), a baffle (12) and a strainer (13) provided inside the tank, In an oil reservoir tank comprising:
Baffle holding means for pressing and holding the baffle (12) is provided between the reservoir upper (10) and the reservoir lower (11),
The strainer (13) and the baffle (12) are sequentially placed on the upper surface of the reservoir lower (11), and in this state, the reservoir upper (10) is put on and joined to the reservoir lower (11), and the strainer (13) and A baffle (12) is held between the baffle holding means and the reservoir lower (11), and the baffle holding means is provided so as to reach the upper inner surface of the reservoir upper from the upper surface of the baffler (12) . A cylindrical rib (15),
The internal structure fixing structure of the reservoir tank, wherein the cylindrical rib (15) presses the baffle (12) by coming into contact with the upper inner surface of the reservoir upper (10).

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