JPH0635071U - Reservoir for hydraulic equipment - Google Patents

Abstract

(57) [Summary] [Purpose] A flat box-shaped primary reservoir that is horizontally arranged,
In a reservoir for a hydraulic device including a cylindrical secondary storage portion extending downward from one end of the primary storage portion, a lateral force in the direction of the primary storage portion acts on the hydraulic oil in the secondary storage portion. Even
The flow of hydraulic oil from the secondary storage part to the primary storage part is blocked to secure a necessary amount of hydraulic oil in the secondary storage part. [Structure] A partition plate 14 is arranged between the primary storage part 2 and the secondary storage part 3, and a communication port 15 is provided at an end of the partition plate 14 opposite to the center part of the primary storage part 2.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a reservoir for hydraulic equipment such as a modulator for an automobile anti-lock brake, and more particularly to a horizontally-arranged flat box-shaped primary storage part and a downward direction extending from one end of the primary storage part. It is equipped with a cylindrical secondary storage part, and an outlet pipe for sending hydraulic oil to hydraulic equipment is provided at the lower end of the secondary storage part, and an inlet pipe for returning hydraulic oil from the hydraulic equipment is provided for the primary storage part. Provisions related to improvements.

[0002]

[Prior art]

 Such a reservoir is already known, for example, as disclosed in Japanese Utility Model Publication No. 2-1212.

[0003]

[Problems to be solved by the device]

 In such a reservoir, when a lateral force toward the primary reservoir acts on the working oil in the secondary reservoir due to vehicle acceleration / deceleration, climbing / hilling, turning, etc., the hydraulic oil flows in the direction of the lateral force. As a result, hydraulic oil may temporarily run short in the secondary reservoir.

The present invention has been made in view of such circumstances, and it is possible to reliably keep a required amount of hydraulic oil in the secondary storage portion even when the lateral force is applied. It is intended to provide a reservoir.

[0005]

[Means for Solving the Problems]

 In order to achieve the above object, the present invention provides a partition plate between the primary storage part and the secondary storage part to partition the two parts, and the partition plate is provided on both sides of the storage part on the side opposite to the central part of the primary storage part. The first feature is that a communication port is provided for communicating the spaces.

Further, in addition to the above features, the present invention provides a primary storage part, a main chamber having a large volume, the inside of which is connected to a communication port, and a small volume flow path that communicates between an inlet pipe and a secondary storage part. The second feature is that a partition wall for partitioning into and is provided.

[0007]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings.

In FIGS. 1 to 4, a reservoir 1 is a horizontally-arranged flat box-shaped primary storage part 2 and a rectangular tubular secondary part extending downward from one end of the primary storage part 2. The storage part 3 is provided, and the primary storage part 2 is mounted on the antilock brake modulator 4 (FIG. 4) as a hydraulic device, and a plurality of primary storage parts 2 are formed outside the primary storage part 2. Bosses 5 and 5'are fixed to the modulator 4 by bolts (not shown).

As shown in FIGS. 2 to 4, in the primary storage part 2, an L-shaped partition wall 6 connects the upper and lower walls of the storage part 2 along two adjacent sides thereof. The partition wall 6 divides the inside of the storage portion 2 into a large volume main chamber 2a and a small volume L-shaped flow passage 2b. One end of the flow path 2b is connected to the inside of the secondary storage part 3, an outlet pipe 7 is projectingly provided on the lower surface of the secondary storage part 3, and the lower surface of the primary storage part 2 is provided on the other end of the flow path 2b. The inlet pipe 8 protruding from the opening opens. The outlet pipe 7 is connected to a feed pipe 10 connected to the suction port of a hydraulic pump 9 that supplies hydraulic oil to the modulator 4, and the inlet pipe 8 is connected to a return hose 11 connected to the discharge port of the modulator 4.

An oil supply port 12 is provided on the upper wall of the primary reservoir 2 at a position away from the flow path 2 b, and is normally closed by a cap 13.

A partition plate 14 is arranged substantially horizontally between the primary and secondary storage parts 2 and 3. The partition plate 14 is provided with a notch 15 as a communication port for communicating the main chamber 2a with the inside of the secondary storage part 3 at a corner opposite to the center of the main chamber 2a.

Further, the partition plate 14 includes an upper protrusion 16 which stands up so as to block between the flow path 2 b and the main chamber 2 a above the partition plate 14, the flow path 2 b and the secondary storage portion 3. The lower protrusion 17 that defines the communication port 18 between the two is integrally formed.

The reservoir 1 is composed of an upper reservoir half 1A and a lower reservoir half 1B divided by a plane 19 that passes through the center of the primary reservoir 2 in the vertical direction. These reservoir halves 1A, 1B are molded of synthetic resin, and the flanges 20, 21 formed on the peripheral edges of the opposing surfaces are welded.

In this case, as shown in FIG. 5, the partition plate 14 made of synthetic resin is positioned and engaged with the step portion 22 formed on the inner wall of the secondary storage portion 3 of the lower reservoir half 1B, and the partition plate 14 is engaged with the step portion 22. A plurality of columns 23, 23 ... Standing up on the peripheral edge of the plate 14, and a plurality of ribs 24, 24 ... Corresponding to the columns formed on the upper reservoir half 1A are welded to the flanges 20 and 21. At the same time, it is welded. In this way, the partition plate 14 is fixed at a fixed position in the secondary storage section 3.

The welded flanges 20 and 21 are used as upper limit level marks indicating the limit of oil supply to the reservoir 1.

Next, the operation of this embodiment will be described.

First, the hydraulic oil injected into the oil supply port 12 of the reservoir 1 flows from the main chamber 2a of the primary reservoir 2 into the secondary reservoir 3 through the notch 15 of the partition plate 14 and fills them. . Then, by the operation of the hydraulic pump 9, the hydraulic oil in the secondary reservoir 3 is sucked into the hydraulic pump 9 via the outlet pipe 7 and the feed hose 10 and is pressure-fed to an accumulator (not shown).

When the antilock brake of the automobile is operated, the pressure oil accumulated in the accumulator is supplied to the modulator 4 or discharged from the modulator 4 to the return hose 11.

The hydraulic oil discharged from the modulator 4 to the return hose 11 is returned to the secondary reservoir 3 through the inlet pipe 8 of the reservoir 1, the flow path 2b and the communication port 18 in sequence.

By the way, the hydraulic fluid discharged from the modulator 4 has a relatively high pressure, but is attenuated while passing through the L-shaped long flow passage 2b extending along the two sides of the reservoir 1. When returning to the inside of the secondary storage part 3, the operating oil of the secondary storage part 3 is not vigorously stirred by the operating oil, and of course, the operating oil of the main chamber 2a isolated from the flow path 2b is also stirred. Not done. If bubbles are generated in the hydraulic oil in the secondary storage section 3 due to agitation, the bubbles float from the notch 15 of the partition plate 14 to the main chamber 2a, and the space between the oil supply port 12 and the cap 13 is increased. It is released to the outside through the ventilation passage.

When a lateral force in the direction of the primary storage part 2 acts on the hydraulic oil in the secondary storage part 3 due to acceleration / deceleration, uphill / downhill, turning, etc. of the vehicle, one of the hydraulic oil in the secondary storage part 3 The portion immediately fills the small-volume flow passage 2b through the communication port 18, but since the notch 15 of the partition plate 14 is located on the side opposite to the central portion of the main chamber 2a, the secondary storage portion 3 Most of the hydraulic oil is blocked by the partition plate 14 and does not flow into the large-volume main chamber 2a. Therefore, a sufficient amount of hydraulic oil can be retained in the secondary storage section 3, and the hydraulic oil can be reliably and reliably supplied to the modulator 4 by the hydraulic pump 9.

[0022]

[Effect of device]

 As described above, according to the first feature of the present invention, a partition plate is provided between the primary storage part and the secondary storage part to partition the two, and the partition plate is opposite to the central part of the primary storage part. Since a communication port that connects both reservoirs was provided on the side, hydraulic oil can be replenished from the primary reservoir to the secondary reservoir through the communication port of the partition plate in normal times, but When a lateral force acts on the hydraulic oil in the direction of the primary reservoir, the partition plate blocks the flow of hydraulic oil from the secondary reservoir to the primary reservoir, and the required amount of hydraulic oil is stored in the secondary reservoir. You can keep it.

Further, according to the second feature of the present invention, in the primary storage portion, a large volume main chamber having the inside thereof connected to the communication port and a small volume flow communicating between the inlet pipe and the secondary storage portion. Since the partition wall that divides the passage is provided, the hydraulic oil returned from the hydraulic device is attenuated in the flow passage and then returned to the second storage portion. Therefore, not only the primary storage portion but also the secondary storage portion It is possible to prevent the agitation of the hydraulic oil as much as possible and reduce the generation of bubbles.

[Brief description of drawings]

FIG. 1 is a plan view of a reservoir according to an embodiment of the present invention.

FIG. 2 is a sectional view taken along line 2-2 of FIG.

FIG. 3 is a sectional view taken along line 3-3 of FIG.

FIG. 4 is a sectional view taken along line 4-4 of FIG.

FIG. 5 is an exploded perspective view of a main part of the reservoir.

[Explanation of symbols]

 1 Reservoir 2 Primary Reservoir 2a Main Chamber 2b Flow Path 3 Secondary Reservoir 4 Modulator as Hydraulic Equipment 7 Outlet Pipe 8 Inlet Pipe 14 Partition Plate 15 Notch as Communication Port

 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Hideo Miyabayashi Hideo Miyabayashi 840 Kokubun, Ueda City, Nagano Nissin Industry Co., Ltd. Inside Technical Research Institute (72) Creator Kotama Kure 1-4-1 Chuo, Wako, Saitama Stock Research Institute Honda Technical Research Institute

Claims (2)

[Scope of utility model registration request] 1. A flat box-shaped primary storage part (2) arranged horizontally and a cylindrical secondary storage part (3) extending downward from one end of the primary storage part (2). An outlet pipe (7) for sending hydraulic oil to the hydraulic device (4) is provided at the lower end of the secondary storage part (3), and hydraulic oil from the hydraulic device (4) is supplied to the primary storage part (2). In a reservoir for hydraulic equipment provided with respective return inlet pipes (8), a partition plate (14) for partitioning the two is provided between the primary storage part (2) and the secondary storage part (3). ) Has
Primary storage part (2) Both storage parts (2, 3) on the side opposite to the central part
A reservoir for hydraulic equipment, characterized in that a communication port (15) for communicating between the two is provided. 2. The primary storage part (2) according to claim 1, wherein the primary storage part (2) has a large-volume main chamber (2a) whose interior is connected to the communication port (15), an inlet pipe (8), and A reservoir for hydraulic equipment, characterized in that a partition wall (6) is provided to divide the secondary storage part (3) into a small volume flow path (2b) communicating with each other.