JPH04119644U - Accumulator - Google Patents

Abstract

(57) [Summary] [Purpose] To provide an accumulator that not only does not reduce the effective capacity of the accumulator, but also reduces the number of assembly steps and overall weight, and can be expected to improve its versatility. . [Structure] An open end 1 of an accumulator body 1 that has a free piston 2 inside and defines a gas chamber G and an oil chamber.
In the accumulator in which a cap member 3 is connected to the cap member 3, the cap member 3 is connected to the open end 1a of the accumulator body 1 by welding or screwing, and the cap member 3 has a port 3c that communicates with external piping. ,3
Suppose that d is opened.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

This invention relates to an improvement in an accumulator installed in a hydraulic control circuit.

0002

[Conventional technology]

For example, a hydraulic control circuit for a hydraulic suspension system as a vehicle suspension system. An accumulator is installed inside to store control hydraulic pressure, but the accumulator The data is generally formed in a structure as shown in FIG.

0003 That is, in the conventional accumulator of this type, there is no free space inside the accumulator body 1. While having a piston 2 to partition a gas chamber G and an oil chamber (not shown), A cap member 3 having a T-shaped cross section is welded to the opening end 1a (indicated by reference numeral 4 in the figure). At the same time, the coupling member 6 is screwed onto the cap member 3 with the interposition of the seal member 5. Become.

0004 The cap member 3 has a port 3a in its center that communicates with the oil chamber. is opened, and the joint member 6 has a central portion connected to the port 3a. The chamber 6a to be passed through is opened, and a port communicating with the chamber 6a is provided in the thick part thereof. In other words, the supply port 6b and the discharge port 6c are opened.

[0005] Therefore, according to the accumulator according to the conventional structure described above, the accumulator By welding the cap member 3 to the open end 1a of the main body 1, the accumulator main body 1 is It becomes possible to form a predetermined closed structure, and a joint portion that is screwed onto the cap member 3 External piping (not shown) is connected to the supply port 6b and discharge port 6c of the material 6, respectively. ), which allows the installation of an accumulator in the hydraulic control circuit. There is a point.

[0006]

[Problem that the idea aims to solve] However, the accumulator with the conventional structure described above has the following problems. It's inconvenient.

[0007] That is, the joint is attached to the cap member 3 welded to the open end 1a of the accumulator body 1. A member 6 is provided in series, and the members 3 and 6 are provided in series in the axial direction of the accumulator body 1. Since it is carried out along the direction, the total length of the accumulator becomes large.

[0008] And, since the installation space for accumulators is usually limited, The effective length of the accumulator will be reduced, resulting in the This brings about the inconvenience that the effective capacity decreases.

[0009] In addition, in manufacturing the accumulator, in addition to the cap member 3, a joint member 6 As a result, the number of parts increases, and as a result, it is not possible to reduce the number of assembly processes, and the product The cost increased and the overall weight could not be expected to be reduced, making it inconvenient to handle. There are some inconveniences.

0010 This device was devised in view of the above-mentioned circumstances, and its purpose is However, it is important not to reduce the effective capacity of the accumulator, but also to reduce the assembly process. The Accu It is to provide a mulator.

[0011]

[Means to solve the problem]

In order to achieve the above purpose, the structure of this invention has a free piston inside. A cap part is attached to the open end of the accumulator body that partitions the gas chamber and oil chamber. In an accumulator made of continuous materials, the cap member is attached to the accumulator body. is connected to the open end of the cap member by welding or screwing, and the external part is connected to the cap member. It is assumed that a port communicating with the piping is opened.

0012

[Effect] Therefore, by connecting a cap member to the open end of the accumulator body, the accumulator can be It becomes possible to make the mulleter main body into a predetermined closed structure, and the cap member By providing a supply port and a discharge port that connect to external piping, respectively, There is no need to connect the joint member to the cap member for connection to the pipe.

[0013]

【Example】

Hereinafter, an explanation will be given based on what is shown in the figures. FIG. The accumulator shown in FIG. and a cap member 3 connected to the opening end 1a, which is similar to the conventional example described above (Fig. 4), it does not have the joint member 6 connected to the cap member 3.

[0014] To explain briefly, the accumulator body 1 has a free piston 2 inside. A gas chamber G and an oil chamber (not shown) are partitioned, and hydraulic oil flows into the oil chamber. When moving the free piston 2 back to the left in the figure, move it to the gas chamber G. It is designed to generate hydraulic pressure using gas pressure.

[0015] On the other hand, in this embodiment, the cap member 3 has an opening in the accumulator body 1. It is connected to the end 1a by welding (indicated by reference numeral 4 in the figure), and is connected to the left side in the figure. It has a chamber 3b opened in the center of the insertion end side, which is the end side, and , is opened in the thick part on the protruding end side, which is the right end side in the figure, and communicates with the container chamber 3b. and a supply port 3c and a discharge port 3 that communicate with external piping (not shown). d.

[0016] In the accumulator of the embodiment shown in FIG. 2, the cap member 3 is the accumulator main body. It is screwed onto the opening end 1a of 1.

[0017] That is, the cap member 3 has a thick part on its protruding end side, which is the right end side in the figure. A chamber 3b communicating with a chamber (not shown) in the accumulator main body 1, and a chamber 3b connected to the chamber 3b. A supply port 3c and a discharge port communicate with each other and communicate with external piping (not shown). 3d.

[0018] The cap member 3 is formed on the inner periphery of its screwed end, which is the left end in the figure. Screw the thread 3e into the thread 1b formed near the open end 1a of the accumulator body 1. They are screwed together with the handle member 5 interposed therebetween.

[0019] Therefore, the accumulator according to each embodiment of FIGS. 1 and 2 formed as described above According to the data, a cap member 3 is connected to the open end 1a of the accumulator body 1. This makes it possible to make the accumulator main body 1 into a predetermined closed structure, and also A supply port 3c and a discharge port are connected to the cap member 3 and to external piping, respectively. By providing 3d, it is possible to connect the piping to the accumulator body 1 side. There is no need to connect a joint member (indicated by reference numeral 6 in FIG. 4) to the cap member 3. It becomes.

[0020] The accumulator formed as described above is then adapted to suit the specific vehicle installation situation. In this case, this can be mounted in a predetermined position using a mounting structure 7 as shown in FIG. is preferable.

[0021] That is, the mounting structure 7 is designed to insert the bracket 7a and the intermediate portion of the bracket 7a. The bracket 7a has a plurality of bolts 7b to pass through, and one end of the bracket 7a has a A bolt 1c protruding from the bottom end of the accumulator body 1, which is the left end in the figure, has a nut. Attachment where the other end is connected using the cut 7c and the other end is drilled into the thick part of the cap member 3. It is assumed that the connection is made by screwing the bolt 7d into the hole 3f.

[0022] Then, by screwing the bolt 7b onto the vehicle body side, the accumulator It is said that it will be possible to attach it to a predetermined position on the body.

[0023]

[Effect of the idea]

As described above, according to this invention, the open end of the accumulator body can be closed. The port that communicates with the external piping is directly opened in the cap member, which is different from the conventional method. Do not connect a joint member to the cap member to connect external piping, as in Therefore, the capacity of the accumulator can be reduced without increasing the total length of the accumulator. It is possible to secure a large effective capacity, and the assembly process of the accumulator is It becomes possible to reduce the number of steps and the overall weight, making it convenient to use and increasing its versatility. This has the advantage that a significant improvement in usability can be expected.

[Brief explanation of drawings]

FIG. 1 is a partially cutaway front view of an accumulator according to an embodiment of the present invention.

FIG. 2 is a partially cutaway front view of an accumulator according to another embodiment.

FIG. 3 is a front view showing the accumulator shown in FIG. 1 together with a mounting structure.

FIG. 4 is a partially cutaway front view of an accumulator according to a conventional example.

[Explanation of symbols]

1 Accumulator body 1a Open end 2 Free piston 3 Cap member 3c supply port 3d discharge port G gas chamber

Claims (1)

[Scope of utility model registration request] Claim 1: An accumulator in which a cap member is connected to an open end of an accumulator body that has a free piston inside and defines a gas chamber and an oil chamber, the cap member being welded to the open end of the accumulator body. Alternatively, an accumulator characterized in that the cap member is connected to the cap member by threading and has a port that communicates with external piping.