JPH0454387Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] This invention is a multiple joint used in a multiple tube with built-in electric wires, in which a plurality of tubes are connected and integrated and the electric wire is housed in a part of the multiple tube. Regarding.

[Conventional technology]

Conventionally, in order to easily arrange multiple tubes such as pneumatic tubes and hydraulic tubes on one line, it has been common practice to connect and integrate multiple tubes into a so-called multiple tube. In such a case, considering the time and effort involved in replacing the tubes, it is desirable to integrate a plurality of joints for connecting the tubes to each other.

Conventionally, a plurality of holes in which the joint can be stored are provided in parallel in the aluminum block, and the joint is press-fitted into each hole so that both ends of the joint protrude outside, or the joint is inserted into the hole, and then the aluminum block is inserted. Multiple joints were integrated by screwing the joints from the side.

Furthermore, recently, multiple tubes with built-in electric wires have been used in which electric wires are housed in the hollow portions of some of the tubes, and the solenoid valves are controlled by the electric wires. In this case, the tube into which the electric wire is inserted (hereinafter referred to as a tube with built-in electric wire) is also fixed to the aluminum block at its terminal portion, so that stress is not directly applied to the electric wire.

[The problem that the idea attempts to solve]

However, the above-mentioned integrated structure has the disadvantage that it takes a lot of time to integrate the joints, and there is no means for fixing the tube with built-in electric wires in the aluminum block. Therefore, it took a lot of effort to fix it, so it was not a very useful method. Furthermore, it has the disadvantage that the entire structure is stiff and it is not easy to increase or decrease the number of joints.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to solve the above-mentioned drawbacks and provide a multiple joint that is compact and optimal for a tube for built-in electric wires.

[Means to solve the problem]

In order to achieve the above-mentioned object, the present invention has been developed to accommodate a fluid tube of a multi-tube with built-in electric wires in which an electric wire is inserted into a part of a plurality of connected tubes, and to hold the fluid tube in a removable manner. It includes a plurality of juxtaposed joints and a support member that is held on the outer periphery of the juxtaposed joints and supports a tube in which an electric wire is housed.

[Effect]

According to this invention, a plurality of joints for fluid tubes and a support member for a tube containing electric wires are integrated into a multiple joint, so the entire multiple joint becomes compact. Since the support member is integrally provided, the electric wire built-in tube is reliably supported.

〔Example〕

Hereinafter, embodiments of this invention will be described based on the drawings.

1 to 5 show a first embodiment of the present invention.

First, the configuration will be explained. FIG. 1 is a plan view showing a state in which three joints 1 are integrated in parallel, and FIG. 2 is a sectional view taken along the - line in FIG. 1. Hereinafter, the state shown in FIG. 1 will be referred to as a multiple joint 10. .

As shown in Fig. 3, the joint 1 has a pipe-like joint body 1a with a step, and a tube or the like is inserted into the hollow part from both ends, and the joint body 1a is slightly larger than the central part. Inside the both end portions 1b formed in the diameter, for example, a gripper (not shown) for gripping the end portion of the tube to be inserted;
A known removable attachment mechanism is provided, which includes an open tube 1c for releasing the gripping state of the gripper.

In addition, as shown in FIG. 2 or 3, in the axial center part below the hollow part of the joint body 1a, there is a tube in the direction in which the tube is inserted into the joint body 1a (i.e., in the left-right direction in FIG. 3). ) is provided in a direction perpendicular to the through hole 2.

On the other hand, as shown in FIGS. 1 and 2, a tube clip 3 as shown in FIG. 4 is provided between each joint 1, and this clip holds the tube into which the wire of the multiple tube with built-in wire is inserted. It serves as a support member for fixed support at a predetermined position.

The tube clip 3 is made of relatively flexible plastic or the like, and consists of a partially cut-out cylindrical portion 3a and a flat plate portion 3b integrally protruding from the cylindrical portion 3a. A hole 3c having the same diameter as the through hole 2 is provided. however,
The hole 3c is provided so as to be located at the same height as the through hole 2 when the tube clip 3 is in the state shown in FIG.

The three joints 1 and the two tube clips 3 are connected to through holes 2 provided in each joint body 1a.
and a hole 3c provided in the tube clip 3, and are integrated by a bolt-shaped shaft 4 that passes through them all. However, it is sufficient that the shaft 4 is threaded only at its tip.

Further, both ends of the shaft 4 are fixed to the frame 5 by a nut 4a and a head 4b screwed into the tip. Therefore, each joint 1 and each tube clip 3 are integrated by the shaft 4 and attached to the frame 5, thereby forming a multiple joint 10.

Note that the frame 5 prevents the joint 1 from rotating around the shaft 4 and serves as a pedestal when installing the multiple joint 10, but this is not always necessary, and if the frame 5 is not used. for,
At the outer opening of the through hole 2 of the joint 1 located at the end,
The nut 4a and the head 4b may be brought into contact with each other.

Next, the effects of the above embodiment will be explained.

That is, in order to integrate the joint 1 and the tube clip 3 as a supporting member as described above, the shaft 4 must be inserted into each through hole 2 and each hole 3c (however, if a frame 5 is used, both ends of the frame 5 Since all that is required is the work of penetrating the nut 4a into the hole provided in the shaft 4 and the work of fastening the nut 4a to the shaft 4, the integration can be performed with less time and effort than the conventional integration method. The tube clip 3 is securely fixed near the joint 1.

Moreover, even if the three joints 1 are integrated to form the multiple joint 10 shown in Fig. 1, the state is not much different from simply arranging the joints 1, so the multiple joint 10 becomes compact and there is no need for unnecessary installation. It does not require space and can be easily installed.

Furthermore, when increasing or decreasing the number of joints 1, it is sufficient to simply replace the shaft 4 and frame 5 with ones of dimensions that match the number of joints 1, and if any of the joints 1 is damaged and defective after integration. Even if the joint 1 becomes damaged, it is as easy to replace only the damaged joint 1 as when the joint 1 is integrated.

Also, since only a small amount of parts are required for integration,
The multiple joint 10 can be configured to be inexpensive and lightweight.

Since the tube clip 3 is integrally provided, the electric wire built-in tube can be reliably supported together with the fluid tube.

FIG. 5 shows a specific usage example of the above-mentioned multiple joint 10, in which three pneumatic tubes (fluid tubes) 6 and two electric wire built-in tubes 7 are integrated. This is an example in which a multiple tube 8 is connected to another pneumatic tube 9 via a multiple joint 10.

That is, the three pneumatic tubes 6 are inserted into each end of the three joints 1, and a mounting mechanism (not shown) prevents them from falling off. It is supported by the cylindrical portion 3a. Further, another pneumatic tube 9 is inserted and held at the other end of each joint 1.

In addition, the electric wire 7a built in the electric wire built-in tube 7
is pulled out to a predetermined length from the tip of the tube 7 with a built-in electric wire, and the tip of the electric wire 7a has, for example,
A connector 7b connected to a pneumatic control valve (not shown), electric wires of other electric wire built-in tubes, etc. is attached.

Note that the pneumatic tubes 6 and 9 may be tubes for other uses such as hydraulic tubes.

Next, a second embodiment of the present invention will be described.

FIG. 6 shows a second embodiment of the present invention, and is a sectional view of a multiple joint 11 in which five joints 1 and two support members are integrated.

Each joint 1 is provided with a through hole 2 as in the first embodiment. Then, two joints 1 are placed on the upper stage and three joints 1 are placed on the lower stage, so that the through holes 2 of the upper joint 1 face downward and the through holes 2 of the lower joint 1 face upward, as shown in Fig. 6. , a box-shaped casing 12a is formed by a nut 4a and a head 4b that are screwed into the through-hole 2 of these five joints 1.
The middle part of a bolt-shaped shaft 4 attached to the shaft 4 is passed through. Further, a flat base plate 12b is attached to the casing 12a.

Further, two tube clips 13 are fixed to the upper surface of the casing 12a. This tube clip 13 is composed of a cylindrical portion 13a having the same shape as the cylindrical portion 3a of the tube clip 3 used in the first embodiment, and a pedestal portion 13b integrally provided below the cylindrical portion 13a. Pedestal part 13
b is fixed to the upper surface of the casing 12a by known fixing means, such as bonding with a resin adhesive. Note that this tube clip 13 may be fixed to the side surface of the casing 12a.

In this way, regardless of the number of joints 1 and tube clips 3, it is easy to integrate a large number of joints with the support member, and the shape after integration can be made compact. It is a very useful multiple joint because it can be supported.

Further, the joint to which the present invention can be applied is not limited to the shape shown in FIG. 3, but includes, for example, an L-shaped joint 14 as shown in FIG.
Even if it is a T-shaped joint 15 as shown in the figure, it can be easily integrated by providing the through holes 2 in the joint bodies 14a, 15a as shown in the figure. Furthermore, it is not always necessary to integrate joints of the same shape; it is also possible to combine joints of different shapes, and these are appropriately selected depending on the conditions of use and the like. Furthermore, even if joints of the same shape are integrated, the ends of the joints do not need to be aligned as shown in FIG. 1, and may be offset in the axial direction.

In addition, in the first and second embodiments described above, the case where the bolt-shaped shaft 4 was applied to connect the through hole 2 of the joint 1 and the shaft 4 was explained.
The coupling means is not limited to this, for example, holes are provided at both ends of the shaft 4 perpendicular to the axis, and after the shaft 4 is passed through the through holes 2 of all the joints 1, a rod is inserted into the holes. The joint 1 and the shaft 4 may be integrated by passing through the joint 1, or other known means may be used.

Further, the shape of the shaft 4 is not particularly limited, and may be a cylinder or various polygonal pillars.

Furthermore, although not shown, tube clips 3 and 13 are used as supporting members in both of the above embodiments.
Instead, a similar cylindrical member may be provided on the opposite side of the cylindrical parts 3a and 13a that support the tube with built-in electric wires, and the cylindrical part may be directly fitted into the joint body, and the supporting member Of course, the shape and mounting position can be changed.

Furthermore, in both of the above embodiments, a multiple joint that connects tubes has been described, but by integrating one end of the multiple joint with the fluid inlet or outlet of the device, it is possible to connect the multiple tubes to the device. It is also possible to use a multiple joint that connects continuous tubes.

[Effect of idea]

As explained above, in the multiple joint of the present invention, a plurality of joints for connecting fluid tubes are arranged side by side, and a support member for supporting the electric wire built-in tube is provided on the joints arranged side by side. Therefore, the joint for multiple tubes can be constructed compactly, and not only the fluid tube but also the electric wire built-in tube can be reliably supported.

[Brief explanation of drawings]

Fig. 1 is a plan view showing the configuration of the first embodiment of the present invention, Fig. 2 is a sectional view taken along the line - - in Fig. 1, Fig. 3 is a side view of the joint applied to this embodiment, and Fig. 4 is a plan view showing the configuration of the first embodiment of the present invention. A perspective view of the tube clip applied to this embodiment,
FIG. 5 is a plan view showing a specific usage example of this embodiment, FIG. 6 is a sectional view showing the configuration of a second embodiment of the present invention, and FIGS. 7 and 8 are FIG. 7 is a side view showing an example of another applicable joint. 1, 14, 15...Joint, 1a, 14a, 15
a... Joint body, 2... Through hole, 4... Shaft, 6, 9... Pneumatic tube, 7... Tube with built-in electric wire, 8... Multiple tube with built-in electric wire, 10,
11...Multiple joint.

Claims (1)

[Scope of utility model registration request] A plurality of joints arranged side by side to receive a fluid tube of a multiple tube with a built-in electric wire into a hollow part and detachably hold the tube in which an electric wire is inserted into a part of the plurality of connected tubes; and a support member that supports a tube in which an electric wire is housed and is supported on the outer periphery of the joint.