JPH06156254A - Reservoir tank - Google Patents

Abstract

PURPOSE:To make working oil flow to the oil chamber regardless of restrictions due to the layout of inlet and outlet ports. CONSTITUTION:This reservoir tank is a reservoir body 1 in which a first oil chamber 4a, etc., for storing working oil in it and a first inlet and outlet ports communicated with the first oil chamber 4a, etc. This reservoir body 1 is composed of a second oil chamber 10 formed by dividing the first oil chamber 4a, etc., by means of vertical partitions, a second inlet port 9a and a second outlet port 9b which are formed in the reservoir body 1 and communicated with the second oil chamber 10, an upper chamber 10a and a lower chamber 10b formed by dividing the second oil chamber 10 by means of a horizontal partition wall 5b, a partition wall 11a formed on the horizontal partition wail 5b at the part near to the second inlet port 9a, and a foreign object removing net part 11 formed at the part near to the second outlet port 9b.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a reservoir tank mounted on a vehicle brake master cylinder, and more particularly to a reservoir tank having a filter inside for purifying the working fluid contained in the reservoir. Is.

[0002]

2. Description of the Related Art Conventionally, as a reservoir tank of this type, for example, that disclosed in Japanese Utility Model Laid-Open No. 64-36271 is known. This is divided into an upper chamber and a lower chamber by a filter, the upper chamber is provided with a second inflow port for returning the hydraulic fluid from one hydraulically operated device to a reservoir tank, and the lower chamber. Has a first inflow port for returning the hydraulic fluid from the other hydraulically operated device to the reservoir tank, and an outflow port for supplying the hydraulic fluid from each hydraulically operated device to the pump. ing. Therefore, the hydraulic fluid returned from each device enters the upper chamber from the first inflow port or the second inflow port, flows through the filter to the lower chamber, and is supplied to the pump from the outflow port.

[0003]

However, according to the above-mentioned reservoir tank, it is extremely difficult to restrict the inflow / outflow port and the oil chamber communicating with the inflow / outflow port for each hydraulically operated device, due to restrictions. It is the work of.

Further, an inflow / outflow port dedicated to each hydraulic pressure operating device and a direct connection with the inflow / outflow port are provided, and a chamber for each hydraulic pressure operating device is provided by partitioning with a vertical partition wall.
As a result, even if the hydraulic fluid in the reservoir tank is inclined due to the inclination of the vehicle such as when the vehicle is turning, the amount of the hydraulic fluid is reduced around the outflow port, and the atmosphere cannot enter the outflow port.

However, if the inflow / outflow port is provided on the axis in the vertical direction with respect to the reservoir tank, it is not a big problem. However, due to the problem of mountability, the inflow / outflow port may not be arranged on the vertical axis. For example, one inflow / outflow port is provided so as to be biased with respect to the reservoir tank. Therefore, the distance between the inflow and outflow ports becomes large, and there is a fear that the oil may not enter the oil chamber into which it is trying to flow in properly.

Therefore, the present invention solves the above problem, that is, regardless of restrictions on the arrangement of the inflow / outflow ports,
The technical issue is to enable distribution in the oil chamber.

[0007]

[Constitution of the invention]

[0008]

The technical means taken in the present invention to solve the above technical problem is a first oil chamber for storing hydraulic oil therein, and a first oil chamber communicating with the first oil chamber. In the reservoir body having the inflow / outflow port, the first
A second oil chamber in which the oil chamber is divided by a vertical partition, a second outflow port and a second inflow port formed in the reservoir body and communicating with the second oil chamber, and a second oil chamber formed by a horizontal partition The chamber and the lower chamber are provided with a partition wall surface formed closer to the second inflow port with respect to the horizontal partition, and a net portion formed closer to the second outflow port to remove foreign matter.

[0009]

The above technical means operates as follows. The reservoir body is divided into a first oil chamber and a second oil chamber by vertical partition walls, and the second oil chamber is further divided into upper and lower chambers by horizontal partition walls,
The side closer to the second inflow port with respect to the horizontal partition is the partition surface,
In addition, even if the position of the second inflow / outflow port is restricted, the partition wall surface can be provided from the second inflow port to the second oil chamber even if the position of the second inflow / outflow port is restricted by forming a mesh portion near the second outflow port. Is formed to guide the hydraulic fluid to the second oil chamber.

[0010]

Embodiments to which the present invention is applied will now be described in detail with reference to the accompanying drawings.

As shown in FIG. 1, a reservoir tank 1
Is composed of a resin lower body 2 and an upper body 3, and is used by being attached to a vehicle brake master cylinder (not shown).

In the lower body 2, a first chamber 4 and a first chamber 4 are provided.
a, a vertical partition wall 5 and a mounting portion 6 for mounting a level warning switch (not shown). The first chamber 4 and the first chamber 4a communicate with each other through a through hole 7 formed in the upper body 3 and the vertical partition wall 5. is doing. Also, lower body 2
Have first inflow / outflow ports 2a, 2b formed therein, and are connected to the vehicle brake master cylinder by the respective first inflow / outflow ports 2a, 2b.

Further, the second outflow port 9 for supplying the hydraulic fluid, which has been introduced into the second inflow port 9a described later from another hydraulic operating device, to the side surface portion of the lower body 2 toward the pump.
b is formed. The first partition 4a and the second compartment 10 are partitioned by the vertical partition wall 5a, and the second outflow port 9b communicates with the second compartment 10.

The upper body 3 has a liquid injection port 8 formed by the cylindrical wall 3a and also has a liquid injection port 8
A cap (not shown) can be attached to the. A second inflow port 9a is formed in the upper body 3, and the second chamber 10 is partitioned by the horizontal partition wall 5b into an upper chamber 10a and a lower chamber 10b. Upper chamber 1
0a communicates with the second inflow port 9a. The second inflow port 9a and the second outflow port 9b communicate with each other via the horizontal partition wall 5b.

The horizontal partition wall 5b is made up of a resin wall surface 11a, a resin frame and a stainless net 11. The wall surface is closer to the second inflow port as shown in FIGS. 11a is provided, and the net portion 11a is provided on the side closer to the lower chamber 10b. Since the working fluid from the second inflow port 9a passes from the wall surface 11a through the net portion 11 to the second outflow port 9b, foreign matter in the working fluid is reliably removed. With the inner partition wall 5b, it is possible to freely set the oil chamber dedicated to the hydraulically operated device of the anti-skid control device or the traction control device.

[0016]

As described above, according to the present invention, the reservoir body is divided into the first oil chamber and the second oil chamber by the vertical partition, and the second oil chamber is further divided into the upper chamber and the lower chamber by the horizontal partition. By providing a partition wall surface that is formed near the second inflow port with respect to the divided horizontal partition wall and a net portion that is formed near the second outflow port to remove foreign matter, the second inflow / outflow Even when the position of the port is restricted, the partition wall surface is formed from the second inflow port to the second oil chamber, so that the second working fluid can be supplied.
The range of the second oil chamber can be freely set by being guided to the oil chamber, and is suitable for hydraulically operated equipment that operates with a small amount. Therefore, regardless of the restriction of the arrangement of the inflow / outflow port, the oil can be distributed to the oil chamber.

[Brief description of drawings]

FIG. 1 is a side view of a reservoir tank according to the present invention.

FIG. 2 is a cross-sectional top view of a reservoir tank according to the present invention.

FIG. 3 is a sectional side view of a reservoir tank according to the present invention.

FIG. 4 is a sectional front view of a reservoir tank according to the present invention.

[Explanation of symbols]

 1 Reservoir body 2 Lower body 2a, 2b 1st inflow / outflow port 3 Upper body 4, 4a 1st oil chamber 5, 5c Vertical partition 5b Horizontal partition 6 Attachment part 7 Through hole 8 Injection port 9a, 9b 2nd inflow / outflow port 10 2nd oil chamber 10a 2nd oil chamber upper chamber 10b 2nd oil chamber lower chamber 11 Net part 11a Wall surface

Claims (1)

[Claims] 1. A reservoir main body having a first oil chamber for storing hydraulic oil therein and a first inflow / outflow port communicating with the first oil chamber, wherein the first oil chamber is partitioned by a vertical partition wall. Second oil chamber, and a second oil chamber formed in the reservoir body and communicating with the second oil chamber.
An outflow port and a second inflow port, an upper chamber and a lower chamber formed by a horizontal partition wall for the second oil chamber, and a partition wall surface provided closer to the second inflow port with respect to the horizontal partition wall, And a reservoir tank provided with a net portion provided near the second outflow port for removing foreign matters.