JPH0725207Y2 - Oil tank for vehicle - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to an oil tank used in a hydraulic system for steering a vehicle, switching gears, and adjusting the height of a vehicle body.

(Prior Art) In recent vehicles, steering, switching transmissions, or adjusting the height of the vehicle body while traveling is automatically performed by a hydraulic system. However, the oil tank incorporated in the hydraulic system is a device. Due to the fact that it can be set in a narrow engine room with a lot of space, it is not possible to make the setting space wide. An example of this is shown in Fig. 4, and the body 1 has an elongated bottomed tubular shape. Then, a cover 2 having a bracket 2a for suspending the refueling oil strainer on its inner surface is attached to the upper end thereof, and a cap 3 provided with a chamber for air circulation at the upper end opening of the cover 2 is a bayonet type. The oil inlet pipe 4 returning from the hydraulic circuit is attached to the bottom of the side wall or the bottom wall, while the oil is taken out even if the oil level changes in the center of the side wall. To indeed, the outlet pipe 5 is reversed L-shape is attached, between the inlet pipe 4 and outlet pipe 5 lower dish-shaped net device 6 for that spend a feedback oil is provided.

(Problems to be solved by the invention) By the way, the above conventional oil tank has a body 1 and a cover 2
The inlet / outlet pipes 4 and 5 are made of thin iron plate, and the cover 2 and the inlet / outlet pipes 4 and 5 are brazed to the body 1, but the mesh device 6 has a peripheral rim portion and a fine mesh net. Since the material is integrally molded with synthetic resin, the body 1, cover 2,
The inlet and outlet pipes 4 and 5 cannot be assembled at once by brazing in the furnace. First, the fitting portion of the inlet pipe 4 is assembled to the bottom of the body 1 by torch brazing, and then the inlet pipe 4 is assembled. The net 6 is attached to a predetermined position on the upper side of the body by press-fitting or adhering means, and the inverted L-shaped outlet pipe 5 is fitted and inserted in the central portion of the side wall of the body 1, and the fitting and inserting portion is torch brazed, and then A cover 2 is provided on the body 1 and the periphery of the butted portion is brazed by torch brazing or is caulked to seal the body, and it takes a lot of time and labor to divide the work process into several times. In the case where the cover 2 is brazed, the splash of the molten wax may fall on the net material and be damaged. Further, the rim portion and the net material of the net device 6 are made of the same material as that of the botte 1 such as iron, and are assembled at once by brazing in the furnace together with the body 1, the cover 2, the inlet and outlet pipes 4, 5. In this case, the net material has a smaller heat capacity than that of a body and the like, and therefore the net material is red-heated and damaged first.

Therefore, the present invention provides an oil tank that does not require any trouble in brazing the cover or the inlet / outlet pipe for the body, and does not damage the net material.

(Means for Solving the Problems) Based on the above-mentioned object, the present invention has an opening end of an inlet pipe at an inner bottom portion of a bottomed tubular body having an inlet pipe and an outlet pipe and having a cover attached to the upper end thereof. As a metal oil tank for a vehicle, in which a mesh device composed of a mesh material and a peripheral rim is disposed between the mesh and the opening end of the outlet pipe, the mesh device is made of a heat-resistant metal such as stainless steel, and the mesh is The container is arranged at a predetermined position in the body, and the rim portion is welded to the inner surface of the body.

(Embodiment) FIG. 1 and FIG. 2 show an embodiment of the present invention, in which a body 11 has an elongated bottomed cylindrical shape, and an upper end thereof is for suspending a refueling strainer on the inner surface. A cover 12 to which a bracket 12a is attached is attached, a cap 13 having a chamber for air circulation is attached to the upper end opening of the cover 12 in a bayonet manner, and a hydraulic circuit is looped around the bottom of the side wall or the bottom wall. While the returning oil inlet pipe 14 is attached,
At the center of the side wall, an outlet pipe 15 bent in an inverted L-shape is attached so as to ensure the oil removal even if the oil surface fluctuates due to a sudden outflow or swing, and the lower end of the outlet pipe 15 is attached. And the open end of the inlet pipe 14 is provided with a dish-shaped mesh device 16 for passing return oil,
The cover 12, the inlet and outlet pipes 14 and 15 are made of thin iron plate, which is the same as the above.

By the way, in this invention, the mesh material 16a of the mesh device 16 having a fine mesh of about 80 to 100 mesh and the peripheral rim portion 16b are connected to each other.
Made of stainless steel that is more corrosion-resistant and heat-resistant than ordinary mild steel used for 11 and cover 12 (stainless steel has a heat-resistant strength of about 300 degrees and stainless steel of 500-700 degrees). The peripheral portion of the mesh is fixed to the rim portion 16b through a retaining ring 16c made of the same material, and the mesh device 16 is arranged at a predetermined position in the body 11 before the inlet / outlet pipes 14 and 15 are attached. Then, the rim portion 16b is brazed and welded to the inner surface of the body.

After that, the inlet pipe 14 is assembled to the side wall bottom or bottom wall of the body 11 and the outlet pipe 15 is assembled to the center part of the side wall, and the cover 12 as described above is placed on the upper end, and the assembly parts are attached to those parts. Appropriate brazing material such as tape, foil, paste, etc. is placed in the furnace together with the body 11, and each assembly part is brazed at once.

In this case, if the net material 16a is made of the same material as the body 11 etc., the net material 16a having a smaller heat capacity than the body etc. may be red-heated and damaged first, but since it is made of stainless steel, there is a fear of that. Absent.

3A and 3B, a part of the rim portion 16b of the net 16 is raised upward in a gutter shape, and the rising portion 16d serves as a return oil passage in the body 11, and the inlet pipe 14 is provided therein. Exit pipe 1 so that the end opens into the upper part of the gutter-shaped rising part 16d.
As in the case of No. 5, it shows an example of modification that is attached to the center of the side wall.

In this type of oil tank, the inlet pipe 14 is the outlet pipe 15
Similarly, the open end is generally provided at the bottom of the body as in the above-mentioned example so as not to be exposed from the oil even when there is a rapid change in the oil. The inlet pipe 14 can be attached to the center of the side wall as a short one.

The net 16 is preferably made of stainless steel in view of price and popularity, but other heat-resistant metal may be used as long as it is easy to process.

(Effect of the Invention) As described above, in the present invention, the open end of the inlet pipe and the open end of the outlet pipe are provided at the inner bottom portion of the bottomed tubular body that includes the inlet pipe and the outlet pipe, and has a cover at the upper end. As a metal oil tank for vehicles, in which a mesh device consisting of a mesh material and the surrounding rim is interposed, the mesh device is made of heat-resistant metal such as stainless steel, and the mesh device is at a predetermined position in the body. Since the rim part is welded to the inner surface of the body, the cover, inlet and outlet pipes can be brazed and assembled at once in the furnace after the mesh device is installed in the body. , It does not require many working steps as in the past, improves efficiency, and even if the molten braze falls onto the net material during brazing, there is no danger of damaging it and the sealing performance of each part It also improves and does not reduce overperformance.

[Brief description of drawings]

 FIG. 1 is a sectional view of an embodiment of the present invention. FIG. 2 is a perspective view of the mesh device. FIG. 3A is a cross-sectional view in which a part of the modified example is removed. The same figure B is a perspective view of the mesh device. FIG. 4 is a sectional view of a conventional oil tank. In the figure 11 …… Body, 12 …… Cover 13 …… Cap, 14 …… Inlet pipe 15 …… Outlet pipe, 16 …… Network 16a …… Net material, 16b …… Rim part 16d …… Rise part

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification code Internal reference number FI Technical display location B62D 5/07 A 8510-3D F15B 1/26 9235-3H F15B 1/06

Claims (1)

[Scope of utility model registration request] 1. An inlet end of an inlet pipe 14 and an outlet end of an outlet pipe 15 at an inner bottom portion of a bottomed tubular body 11 having an inlet pipe 14 and an outlet pipe 15 and a cover 12 attached to an upper end thereof. In a metal oil tank for a vehicle, in which a mesh device 16 composed of a mesh material 16a and a peripheral rim portion 16b is arranged, the mesh device 16 is made of a heat-resistant metal such as stainless steel, and the mesh device 16 is a body.
An oil tank for a vehicle, which is disposed at a predetermined position in 11 and has a rim portion 16b welded to the inner surface of the body.