JPH071342Y2 - Oil tank for vehicle - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to an oil tank, which is mainly used in a hydraulic system such as steering in a vehicle, switching of a transmission and height adjustment of a vehicle body.

(Prior Art) In a recent automobile, a hydraulic system is used for power steering of a vehicle, automatic switching of a speed change mechanism, or height adjustment of a vehicle body while traveling, and pumps oil in a tank to operate a switching valve. It is sent to a predetermined actuator via the motor to perform operations such as steering, speed change and height adjustment.

An example of the oil tank used in the above hydraulic system is shown in FIG. 3, and a cup-shaped oil strainer is provided on the upper end of the elongated bottomed cylindrical container 1 with an annular support plate 4 interposed therebetween. The cover 2 having 5 suspended therein is caulked, and at the upper end opening of the cover 2, a cap 3 having a level detecting rod 6 vertically installed so as to enter the oil strainer 5 is fitted and removed through the inner member 3a. It is freely fitted, and an oil inlet pipe 7 returning from the hydraulic circuit is attached to the bottom of the side wall or the bottom wall, while the upper part of the side wall ensures the oil removal even if the oil level fluctuates. An outlet pipe 8 having an inverted L shape is attached to the above, and a net 9 is provided between the upper end of the inlet pipe and the lower end of the outlet pipe 8 for converting return oil.

(Problems to be solved by the invention) In this type of oil tank, it is common to provide a gap between the lower end of the level detecting rod 6 and the bottom wall of the oil strainer 5 in order to ensure the attachment of the cap 3. And also
The oil strainer 5 has a slight gap between its side periphery and the central hole of the support plate 4 in order to facilitate the inspection of the inside of the tank and to facilitate the filling of the oil when the tank is assembled into the vehicle. It is generally provided and detachably provided (however, the oil is replenished through the oil strainer 5 after assembly). Therefore, due to the vibration of the vehicle, the oil strainer 5 as shown in FIG.
Is tilted to the left and right, and moves up and down, causing the oil in the tank, which is shaking, to jump out of the gap between the plate and the oil on the strainer being scraped off at the inner edge of the plate. Will eventually leak to the outside through the air holes a provided in the cap and stain the surrounding area, and the oil will be uselessly consumed.

Therefore, the present invention provides an oil tank which is detachably attached to a container so that the oil strainer does not inadvertently move up and down even when the vehicle vibrates.

(Means and Actions for Solving Problems) Based on the above-mentioned object, the present invention provides a level detection rod vertically installed in a cap as an oil tank used in a hydraulic system such as steering of a vehicle or switching of a speed change mechanism. At the lower end of the cover, an elastic body with a thickness slightly larger than the distance between the lower end of the level detection rod and the bottom wall of the oil strainer when the cap was attached to the cover was attached, and it was detachably hung on the support plate inside the cover. The feature is that the oil strainer is pressed and held downward.

Therefore, even if the vibration of the vehicle is transmitted to the oil tank during use, the oil strainer does not inadvertently move up and down or is held in a fixed position without tilting, and by removing the cap from the cover, The pressure on the oil strainer is released, and the oil strainer can be easily taken out.

(Embodiment) FIG. 1 shows an embodiment of the present invention, in which the same parts as those described above are designated by the same reference numerals.

Reference numeral 1 denotes an elongated bottomed cylindrical container 1 having a cover 2 on its upper end and caulking the periphery thereof.
An annular support plate 4 is attached in the middle of the inner side of the support plate, and a cup-shaped oil strainer 5 is detachably suspended from the center hole of the support plate 4 through its upper end collar 5a. , The top opening of the cover 2
A cap 3 having a level detection rod 6 of a required length inserted into the oil strainer 5 suspended in the central portion is detachably fitted by a locking leaf spring 3b of an inner member 3a integrally formed on the inside thereof. The return oil inlet pipe 7 is attached to the bottom of the side wall or the bottom wall, while the reverse L
A letter-shaped outlet pipe 8 is attached, and a net 9 is arranged between the inlet and outlet ends of both pipes 7, 8.

In this invention, when the cap 3 is attached to the upper end opening of the cover 2 at the lower end of the level detecting rod 6 which is hung vertically from the cap 3, the lower end of the level detecting rod 6 and the bottom wall of the oil strainer 5 are covered. A button-shaped elastic body 10 made of rubber, synthetic resin, or the like having a thickness t slightly larger than the space 1 formed between the cap 3 and the inner member 3a is fitted to the upper end opening of the cover 2. When the lower leaf spring 3b for locking is locked to the upper edge of the cover as shown in the drawing by slightly rotating it, the elastic body 10 contracts while the oil strainer 5 is contracted.
It will be pressed against the bottom wall 5b of.

On the other hand, as a reaction, the oil strainer 5 is pressed downward by the level detecting rod 4, and its upper end flange 5a is pressed against the peripheral edge portion of the central hole of the support plate 4, so that the oil strainer 5 is held stationary.

Therefore, even if vibration of the vehicle is transmitted to the tank container 1 during use, the oil strainer 5 is prevented from moving up and down and tilting. Then, for maintenance and inspection of the tank, the cap 3 is slightly rotated in the opposite direction to release the lock of the leaf spring 3b,
When lifted up and removed from the cover 2, the pressure on the oil strainer 5 is released, so that the oil strainer 5 can be removed from the support plate 4 as usual.

The level detecting rod 6 to which the elastic body 10 is attached at the lower end may be rectangular in cross section as shown in FIG. 2A, T-shaped as shown in FIG. 2B, or circular as shown in FIG. If the recess 5c is formed in the bottom wall 5b of the oil strainer 5 and a part of the elastic body 10 at the lower end of the detection rod is fitted therein, the inclination of the oil strainer 5 can be more reliably prevented.

(Effect of the Invention) As described above, according to the present invention, the cap is attached to the lower end of the level detection rod vertically installed in the cap as an oil tank used for a hydraulic system such as steering of a vehicle and switching of transmissions. When attached, an elastic body with a wall thickness slightly larger than the distance between the lower end of the level detection rod and the bottom wall of the oil strainer is attached, and this elastic body is a cup-shaped oil that is detachably suspended on the support plate in the cover. Since the strainer is pressed downwards and held, the oil strainer can be held securely in a fixed position in the container by a simple structure in which an elastic body with a predetermined thickness is attached to the lower end of the oil strainer. Even if vibration of the vehicle is transmitted to the oil tank during use, the oil strainer does not move up and down or tilt like before, and Oil can be prevented from jumping out from the gap between the support plate and the oil strainer, does not pollute the surroundings or waste the oil, and since the oil strainer can be removed from the support plate, Easy maintenance and inspection of the oil tank.

[Brief description of drawings]

FIG. 1 is a sectional view of an oil tank according to the present invention. 2A, 2B and 2C are partial perspective views showing the relationship between the lower end portion of the oil detecting rod and the bottom portion of the oil strainer having different shapes. FIG. 3 is a sectional view of a conventional oil tank. FIG. 4A is a perspective view of the oil strainer. FIG. 8B is an explanatory diagram showing a state of movement of the oil strainer. In the figure, 1 ... Container, 2 ... Cover, 3 ... Cap, 3a ... Inner member, 4 ... Support plate, 5 ... Oil strainer, 5a ... Upper brim, 5b ... Bottom wall, 6 ... Level detection rod , 7 ... inlet pipe 8 ... outlet pipe, 10 ... elastic body

Claims (1)

[Scope of utility model registration request] 1. A cover 2 is attached to an upper end of a bottomed cylindrical container 1 having an oil inlet pipe and an oil outlet pipe.
A cap-shaped oil strainer 5 is removably suspended via a support plate 4, and a cap 3 having a level detection rod 6 of a required length to be inserted into the oil strainer 5 is provided at an upper end opening of the cover 2. In the oil tank in which the cap is detachably attached via a spring member, when the cap 3 is attached to the cover 2, the lower end of the level detecting rod 6 and the bottom wall of the oil strainer 5 are attached to the lower end of the level detecting rod 6. An oil tank for a vehicle in which an elastic body 10 having a wall thickness slightly larger than the interval is attached to hold the oil strainer 5 downward.