JP3186592B2 - Cable joint box and method of manufacturing the same - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cable joint box for connecting a plurality of cables.

[0002]

2. Description of the Related Art FIGS. 12 and 13 show a conventional joint box for a cable. This device includes a box body A made of an insulating material and a plurality of cables B provided with a joint B1 for joining each other, and the box body A is sealed so that the joint B1 is sealed in the box body A. And the cable B are joined by bonding.

[0003]

In the above-mentioned conventional joint box for cables, there is an air gap between the box body A and the cable, and the box body A and the cable B are bonded by bonding. Since they are joined but not hermetically joined, there is a slight gap between the box body A and the cable B,
The space communicates with the space inside the box body A from outside through the space. For this reason, the air enters into the space inside the box body A with the change of the external temperature, so that the water vapor in the air enters due to the so-called respiratory action, and when the entered water vapor condenses, the moisture based on the dew condenses. There is a risk of electric leakage due to

The present invention has been made in view of the above point, and an object of the present invention is to provide a cable joint box which is free from dew condensation in the box body.

[0005]

According to a first aspect of the present invention, there is provided a box body made of an insulating material and a plurality of cables provided with connecting portions for connecting each other. In a cable joint box in which a box body and a plurality of cables are respectively joined so that a coupling portion is sealed in the box body, a filling member made of an insulating material filling between the box body and the cable is provided. The filling member is provided with a holding member that holds the cable from both sides and is harder than the box body, and the holding member holds the cable so that the connecting portion is provided. And a through-hole penetrating in the direction of pinching is provided. Therefore, the space between the box body and the cable is filled with the filling member made of an insulating material, and the gap is eliminated. Also, by molding the box body
When a filling member is provided,
Even if the thickness of the box body varies, the cable
The holding members that hold the
Is also hard, so that the thickness does not easily vary.
In addition, the connecting portion of the cable is provided at the portion where the holding member is provided.
This makes assembly easier. Also box
When the filling member is provided by molding the main body
If the molding material passes through the through hole of the
It becomes easy to get into.

[0006]

[0007]

[0008]

[0009]

Is [0010] intended claim 2, in what according to claim 1, wherein the through hole is in a configuration that is provided substantially uniformly over the entire surface of the clamping member. Therefore, the molding material is more likely to enter the cable side through the through hole provided substantially uniformly over the entire surface.

According to a third aspect of the present invention, there is provided a manufacturing method comprising: a box main body made of an insulating material; and a plurality of cables provided with a connecting portion for connecting the box main body, and the connecting portion is sealed in the box main body. In the manufacture of a cable joint box in which the box body and the cable are joined, at least one of the boxes is heated and pressed by a mold provided with cables sandwiched from both sides by an insulating member made of unvulcanized rubber. The main body and the cable are joined. Then, the insulating member, at least one of which is made of unvulcanized rubber, constitutes the box main body and serves as a filling member for filling the space between the box main body and the cable, thereby eliminating the gap between the box main body and the cable.

According to a fourth aspect of the present invention, in the manufacturing method of the third aspect , both of the insulating members on both sides of the cable are made of unvulcanized rubber, and the cable is pinched harder than the vulcanized rubber. It is sandwiched from both sides by a member, and is sandwiched from both sides by the insulating member with the sandwiching member interposed therebetween. Then, even if the thickness of the insulating member made of unvulcanized rubber fluctuates due to the variation during the heating press, the thickness of the clamping member that clamps the cable from both sides is varied because it is harder than the vulcanized rubber. It will be difficult.

According to a fifth aspect of the present invention, in the manufacturing method of the fourth aspect, a pin is erected on the holding member, and the cable is arranged so that the pin is located between the pin and the inner surface of the mold. It is arranged in the mold. Then, the thickness of the insulating member becomes the size of the pin.

According to a sixth aspect of the present invention, there is provided a manufacturing method comprising: a box body made of an insulating material; and a plurality of cables provided with connecting portions for connecting each other, and the connecting portions are sealed in the box body. In the manufacture of a cable joint box in which the box body and the cable are joined, the cable is clamped from both sides by a clamping member that is harder than the vulcanized rubber, and the clamping member is clamped from both sides by the unvulcanized rubber through the middle. The pin is provided in the mold so as to be located between the pin standing on the holding member and the inner surface of the mold, the unvulcanized rubber is injected into the mold, and the mold is heated, whereby the box is formed. The main body and the cable are joined. Then, the unvulcanized rubber constitutes the box main body and serves as a filling member for filling the space between the box main body and the cable, and the gap between the box main body and the cable is eliminated.

According to a seventh aspect of the present invention, there is provided a manufacturing method comprising: a box body made of an insulating material; and a plurality of cables provided with a connecting portion for connecting the box body to each other, and the connecting portion is sealed in the box body. In the manufacture of the cable joint box to which the box body and the cable are joined, the cable is arranged in the mold together with the unvulcanized rubber so that the pin erected at the joint is located between the inside of the mold and the pin. The box body and the cable are joined by heating the mold and hot-pressing the mold. Then, the unvulcanized rubber constitutes the box main body and serves as a filling member for filling the space between the box main body and the cable, and the gap between the box main body and the cable is eliminated.

According to a eighth aspect of the present invention, there is provided a manufacturing method comprising: a box body made of an insulating material; and a plurality of cables provided with connecting portions for connecting each other, wherein the connecting portions are sealed in the box body. In the manufacture of a cable joint box to which a box body and a cable are joined, the cable is arranged in a mold so that a pin erected at a joint thereof is located between the inner surface of the mold and the mold. The box body and the cable are joined by injecting unvulcanized rubber between the inner surface of the box and the cable and heating the mold. Then, the unvulcanized rubber constitutes the box main body and serves as a filling member for filling the space between the box main body and the cable, and the gap between the box main body and the cable is eliminated.

According to a ninth aspect of the present invention, there is provided a manufacturing method according to the fifth aspect.
8. In the manufacturing method according to any one of Items 8, the pin is accommodated in the mold while the mold is being heated or pressed. Then, there is no through hole that should be formed at the position where the pin was located.

[0018]

DETAILED DESCRIPTION OF THE INVENTION cable joint ball of the present invention
A first embodiment of a method for manufacturing a box will be described below with reference to FIGS. Joint box for this cable
The cable joint box manufactured by the method of manufacturing a cable includes a box body 1 and a plurality of cables 2.

The box body 1 is formed in a box shape by using a mold 3 with chloroprene rubber. The molding method will be described later in detail.

The plurality of cables 2 are PNCT cables, respectively, and are made of the same material as the box body 1.
Each cable 2 is composed of an electric wire 2a and a sheath 2b covering the electric wire 2a. These electric wires 2a are provided with coupling portions 2c for coupling each other at their respective distal ends.

Next, the details of this manufacturing method will be described with reference to FIG. The mold 3 includes a lower mold 3a and an upper mold 3b pressed against the lower mold 3a. First, an insulating member 4 made of unvulcanized rubber is provided in the concave portion 3c of the lower mold 3a, and the insulating member
4, a cable 2 is provided, and an insulating member 4 made of unvulcanized rubber is further provided thereon, and an upper mold 3b is joined.
Then, the cable 2 is disposed in the mold 3 while being sandwiched from both sides by the insulating member 4 made of unvulcanized rubber. When mold 3 is heated and pressed in this state,
The insulating member 4 made of unvulcanized rubber is integrally molded in a predetermined shape based on the inner shape of the mold 3 while being melted and completely sealing the periphery of the cable 2. In other words, this insulating member 4
Is a filling member 5 that constitutes the box body 1 and fills the space between the box body 1 and the cable 3.

The manufacture of such a cable joint box .
According to the manufacturing method, when the mold 3 provided with the cables 2 sandwiched from both sides by the insulating member 4 made of unvulcanized rubber is heated and pressed, the insulating member 4 made of unvulcanized rubber is heated and pressed. As a result, the material is melted in the mold 3 and then vulcanized and cured to form a box body 1 and a filling member 5 for filling the space between the box body 1 and the cable 3. And cable 2
This eliminates the gap between the first and second embodiments, thereby preventing the occurrence of dew condensation as in the conventional example, and further reduces the risk of electric leakage due to moisture due to dew condensation. In addition, since the unvulcanized rubber has a certain degree of hardness, unlike a molding material that becomes liquid when heated, even if the uncured rubber is arranged to be located below the cable 2, the uncured rubber is heated during pressing. The cable does not enter the unvulcanized rubber side and move in the pinching direction.
2 can be arranged at a predetermined position in the box body 1.

The cable 2 whose outer shell 2b is made of the same material as that of the box body 1
The deformation at the time of joining with the box main body 1 by molding 1 becomes the same as that of the box main body 1, and can be joined to the box main body 1 in a close contact state, and the joining strength can be increased.

In this embodiment, the insulating members 4 for holding the cable 2 from both sides are both made of unvulcanized rubber.
There Ru, but as shown in FIG. 3, for example, the lower insulating member 4 of the cable 2, even if the vulcanized rubber insulating member 4b having a placement portion 4a of the cable 2 distribution設用, similar effects Can be played.

Further, in this embodiment, the box body 1 and <br/> chloro plain rubber, although the cable 2 and PNCT cable, without a combination thereof, Bo
When the box body 1 and the outer cover 2b of the cable 2 are made of the same material, the deformation at the time of molding becomes the same, and they can be bonded in a close contact state, and the bonding strength can be increased. For example, a combination such as a box body 1 made of natural rubber and a cable 2 composed of a CT cable may be used.

In this embodiment, the insulating member 4 and the cable
Cable 2 and insulating member 4 in the lower mold 3a in order.
Therefore, the casing is sandwiched by the insulating member 4 from both sides.
Cable 2 is placed in the mold 3, but the insulation member 4
Make sure that cable 2 is
The same effect can be obtained by disposing them in the same position.

Next, the cable joint box of the present invention will be described.
A second embodiment of the method of manufacturing a box will be described below with reference to FIGS. In the description of the second embodiment,
And a cable join manufactured according to the second embodiment.
In the box, the cable manufactured according to the first embodiment is
The members having substantially the same functions as those of the cable joint box are denoted by the same reference numerals, and only the differences from the first embodiment will be described. In the first embodiment, the cable 2 is
Hot pressing and molding while directly sandwiching
However, in the present embodiment, the cable 2 is harder than the vulcanized rubber.
Between the two sides by the holding member 6 and the middle of the holding member 6
The cable 2 is clamped from both sides by the insulating member 4
In this state, it is molded by hot pressing.

More specifically, the holding member 6 is formed, for example, of a PPT resin into a flat plate shape having a substantially square shape in a plan view, and a coupling portion 2c of the cable 2 is disposed on one surface side for holding the cable 2. Arrangement section 6a is provided, and cable
2 is provided with a through hole 6b penetrating in the holding direction.

Next, the details of this manufacturing method will be described with reference to FIGS.
It will be described based on the following. First, the cable 2 is clamped from both sides by the clamping member 6 so that the coupling portion 2c is disposed in the disposing portion 6a, and the cable 2 is clamped on both sides by the insulating member 4 made of unvulcanized rubber with the clamping member 6 interposed therebetween. From the holding member 6
The cable 2 sandwiched from both sides by the insulating member 4 is disposed in the mold 3. In this state, the insulating member 4 melted by heating and pressing the mold 3 wraps around the holding member 6, penetrates through the through hole 6 b of the holding member 6, enters the periphery of the cable 2, and Are integrally formed into a predetermined shape based on the inward shape of. That is, this holding member
6, the box member 1 and the filling member 5 between the box body 1 and the cable 2 together with the insulating member 4, as shown in FIG.

[0030] Such manufacturing of cables for joint box
According to the manufacturing method, as in the case of the first embodiment, the space between the box body 1 and the cable 2 is filled with the filling member 5 and the gap is eliminated, so that the breathing action as in the conventional example is eliminated. There is no condensation, and there is no danger of electric leakage due to moisture due to condensation. Moreover,
As in the case of the first embodiment, the cable 2 can be arranged at a predetermined position in the box body 1.

Further, the cable 2 whose outer sheath 2b is made of the same material as the box body 1 can be joined to the box body 1 in close contact with the box body 1 as in the case of the first embodiment, and the joining strength can be increased. Can be.

Further, even if the thickness of the insulating member 4 made of unvulcanized rubber varies due to a variation in the heating press, the holding member 6 holding the cable 2 from both sides is
Since it is harder than the vulcanized rubber and the thickness does not easily vary, an insulation distance corresponding to the thickness of the holding member 6 can be secured on both sides of the cable 2 and the insulation member 4 can be secured.
In addition, the thickness of the cable joint box itself having the total thickness of the holding member 6 and the thickness thereof is less likely to vary.

The connecting portion 2c of the cable 2 is
By arranging them in the arranging section 6a, assembly becomes easier.

Further, since the insulating member 4 made of unvulcanized rubber easily enters the cable 2 through the through hole 6b of the holding member 6, the degree of filling by the filling member 5 can be improved.

[0035]

[0036]

Next, according to the second embodiment of the present invention ,
Another cable joint box obtained will be described below with reference to FIG. The cable shown in FIGS.
Members having substantially the same functions as those of the joint box for hardware are denoted by the same reference numerals, and the case shown in FIGS.
Only the differences from the bull joint box are noted. Figure
In the cable joint box shown in FIGS. 4 to 6 , the through holes 6b are provided locally at two places of the holding member 6, but the cable joint box shown in FIG.
The switches are provided substantially uniformly over the entire surface.

[0038] Such manufacturing of cables for joint box
For cable shown in FIG. 7 manufactured by the manufacturing method
In the box , the insulating member 4 made of unvulcanized rubber
Is easier to enter the cable side through the through hole 6b provided substantially uniformly over the entire surface .
The filling degree can be further improved as compared with the cable joint box shown in FIG.

Next, the joint box for a cable of the present invention will be described.
A third embodiment of the method of manufacturing a box will be described below with reference to FIG. In the description of the third embodiment,
Joint joint for cable manufactured according to the third embodiment
Of the members included in the box, manufactured according to the second embodiment.
Members having substantially the same functions as those of the cable joint box shown in FIG. 7 are denoted by the same reference numerals, and only different points from the second embodiment will be described. In the second embodiment,
With the cable 2 clamped, the clamping member 6 is arranged in the mold 3
In the direction of holding the cable 2 in the mold 3
In the third embodiment of the present invention, a pin 7 is erected, and the pin 7 is positioned between the pin 7 and the inner surface of the mold 3. Yeah, mold
Positioning of the cable 2 in the holding direction is performed within 3 .

Production of such a cable joint box
According to the manufacturing method, the same effect as in the second embodiment can be obtained. In addition, when the pin 7 is erected on the holding member 6 and heated and pressed while the pin 7 is located between the pin 7 and the inner surface of the mold 3, the thickness of the insulating member 4 becomes the size of the pin 7. Manufactured by this manufacturing method
The joint box for the cable according to the second embodiment
As compared with the manufactured cable joint box shown in FIG. 7, the thickness of the cable joint box itself is less likely to vary.

Next, the joint box for a cable of the present invention will be described.
A fourth embodiment of a method for manufacturing a box will be described below with reference to FIG. In the description of the fourth embodiment,
A joint joint for a cable manufactured according to the fourth embodiment.
Of the members included in the box, manufactured according to the third embodiment.
Members having substantially the same functions as those of the cable joint box described above are denoted by the same reference numerals, and only different points from the third embodiment will be described. In the third embodiment, the cables 2 and
After placing it in the mold 3 together with the
While was heated an insulating member 4 made of beam, in this embodiment, the cable 2 and the clamping member 6 and disposed in the mold 3, the inlet 3d provided in the mold 3, Not Vulcanized rubber
The insulating member 4 is injected into the mold 3.

Production of such a cable joint box
According to the manufacturing method, the same effect as in the third embodiment can be obtained.

Next, the joint box for a cable of the present invention will be described.
A fifth embodiment of the method for manufacturing a box will be described below with reference to FIG. In the description of the fifth embodiment,
Joint joint for cable manufactured according to the fifth embodiment
Of the members included in the box, manufactured according to the third embodiment.
Members having substantially the same functions as those of the cable joint box described above are denoted by the same reference numerals, and only different points from the third embodiment will be described. In the present embodiment , similarly to the third embodiment , the pins 7 arranged in the mold 3 together with the cables 2 and the like are used.
Is stored in the mold 3 during the heating press.

Next, details of this manufacturing method will be described with reference to FIG.
Explanation will be made based on (b). First, as shown in FIG. 1 (a), the cable 2 is clamped from both sides by the clamping member 6 so that the coupling portion 2c is disposed in the disposing portion 6a, and the unvulcanized rubber is sandwiched through the clamping member 6 in the middle. Cable 2 with insulating member 4 consisting of
Is clamped from both sides, and the cable 2 clamped from both sides by the clamping member 6 and the insulating member 4 is disposed in the mold 3. Further, a pin 7 is erected on the holding member 6, and the pin 7 is
3, the positioning of the holding member 6 in the mold 3 is performed. Then, when heated and pressed, the insulating member 4 made of unvulcanized rubber starts to harden after being melted. And during the hot press,
That is, during the curing of the insulating member 4, the pin 7 is accommodated in the mold 3 as shown in FIG.

[0045] Such manufacturing of cables for joint box
According to the manufacturing method , in addition to the effect obtained by the manufacturing method of the third embodiment, the pin
By accommodating 7 in the mold, there is no through hole that would have been formed at the position where the pin 7 was located before the mold 3 was hot-pressed, and the appearance can be improved.

Next, the cable joint box of the present invention will be described.
A sixth embodiment of the method for manufacturing a box will be described below with reference to FIG. In the description of the sixth embodiment,
Joint joint for cable manufactured according to the sixth embodiment
Of the members included in the box, according to the manufacturing method of the fifth embodiment.
Members having substantially the same functions as the cable joint box manufactured in accordance with the fifth embodiment are denoted by the same reference numerals.
Only different points from the embodiment will be described. In the fifth embodiment , an insulating member 4 made of unvulcanized rubber is arranged in a mold 3 together with a cable 2 and pins 7 and the like, and the pin 7 is provided between an inner surface of the mold 3 and a holding member 6. On the other hand, in the present embodiment, the cable 2 and the pin 7 are arranged in the mold 3, and then the insulating member 4 made of unvulcanized rubber is injected into the mold 3,
The pin 7 is located between the inner surface of the mold 3 and the joint 2c of the cable 2.

Next, the details of this manufacturing method will be described with reference to FIG.
Explanation will be made based on (b). First, as shown in FIG. 2A, the cable 2 is pinched from both sides by the pin 7 and the pin 7 is positioned between the pin 7 and the inner surface of the mold 3, so that the cable 2 in the mold 3 is Perform positioning. Then, the insulating member 4 made of the unvulcanized rubber is poured into the mold 3 and the mold 3 is heated, and the insulating member 4 made of the unvulcanized rubber starts to harden after being melted. Then, while the mold 3 is being heated, that is, while the insulating member 4 is being hardened, FIG.
The pin 7 is housed in the mold 3 as shown in FIG.

The manufacture of such a cable joint box
According to the manufacturing method, as in the case of the fifth embodiment , the space between the box body 1 and the cable 2 is filled with the filling member 5 and the gap is eliminated, so that the breathing action as in the conventional example is eliminated. There is no condensation, and there is no danger of electric leakage due to moisture due to condensation.

Further, since the thickness of the insulating member 4 is the size of the pin 7, the thickness of the cable joint box itself having the thickness of the cured vulcanized rubber is less likely to vary. In addition, while heating mold 3, pin 7
By accommodating this in the mold 3, the through hole that would have been formed at the position where the pin 7 was located can be eliminated, and the appearance can be improved.

In the present embodiment, the cable 2 and the pins 7 are arranged in the mold 3, and then the insulating member 4 made of unvulcanized rubber is injected into the mold 3, and the mold 3 is heated. But
The same effect can be obtained by disposing the insulating member 4 made of unvulcanized rubber together with the cable 2 and the pin 7 in the mold 3 and then heating and pressing the mold 3.

[0051]

According to the first aspect of the present invention, since the space between the box body and the cable is filled with the filling member made of an insulating material and the gap is eliminated, there is a gap between the box body and the cable. Also, due to the so-called respiratory action, air enters the gap in the box body with the change of the external temperature, so that the water vapor in the air does not enter,
Condensation does not occur as in the conventional example, and there is no danger of electric leakage due to moisture due to condensation. In addition,
The filling member is provided by molding the box body.
The thickness of the box body due to variations during molding.
Even if there are variations, hold the cable from both sides
The holding member is harder than the box body,
Clamping members are provided on both sides of the cable because variations are less likely to occur.
Can be ensured. Ma
Also, install the cable connection part in the mounting part of the holding member.
This makes assembly easier. Also a box book
When the filling member is provided by molding the body
The molding material passes through the through hole of
Easy to enter, improving the degree of filling by the filling member
Can be made.

[0052]

[0053]

[0054]

[0055]

According to the second aspect of the present invention, since the molding material is more likely to enter the cable side through the through hole provided substantially uniformly over the entire surface, the filling degree is higher than that of the first aspect. Can be improved.

According to the manufacturing method of the third aspect ,
At least one of the insulating members made of unvulcanized rubber is melted in a mold by being heated and pressed, and then vulcanized and hardened, thereby forming a box body and forming a space between the box body and the cable. Since it becomes a filling member to be filled, there is no gap between the box body and the cable, so that dew condensation does not occur as in the conventional example, and there is no danger of electric leakage due to moisture due to dew condensation.
Moreover, since the unvulcanized rubber has a certain degree of hardness, unlike a molding material which becomes liquid when heated, even if the cable is arranged to be located below the cable, the unvulcanized rubber is not subjected to heat during hot pressing. Since the cable does not enter the vulcanized rubber and move in the holding direction, the cable can be arranged at a predetermined position in the box body.

According to the manufacturing method of the fourth aspect ,
In addition to the effect of the manufacturing method of the invention according to claim 5 , even if the thickness of the insulating member made of unvulcanized rubber varies due to variation at the time of hot pressing, the holding member holding the cable from both sides, Since it is harder than the vulcanized rubber and the thickness does not easily vary, an insulation distance corresponding to the thickness of the holding member can be secured on both sides of the cable.

According to the manufacturing method of the fifth aspect ,
In addition to the effect of the manufacturing method according to the fourth aspect of the present invention, the thickness of the insulating member is the size of the pin, so that the thickness of the cable joint box itself is less likely to vary.

According to the manufacturing method of the sixth aspect of the present invention,
The unvulcanized rubber injected into the mold after the cable is arranged is melted in the mold by heating, and then vulcanized and cured to form the box body and the box body. Since it becomes a filling member for filling between the cable, there is no gap between the box body and the cable, and no dew condensation as in the conventional example,
Eventually, there is no danger of electric leakage due to moisture due to condensation. Moreover, the vulcanized rubber obtained by heating the unvulcanized rubber,
Since the thickness is the size of the pin, the thickness of the cable joint box itself having the thickness of the vulcanized rubber is less likely to vary.

According to the manufacturing method of the invention described in claim 7 ,
The unvulcanized rubber disposed in the mold together with the cable is melted in the mold by being heated and pressed, and then vulcanized and cured to form the box body and the box body and the cable. Since the filling member fills the space between the box body and the cable, there is no gap between the box body and the cable, so that dew condensation does not occur as in the conventional example, and there is no danger of electric leakage due to moisture due to dew condensation.
Moreover, since the thickness of the vulcanized rubber obtained by heating the unvulcanized rubber is the size of the pin, the thickness of the cable joint box itself having the thickness of the vulcanized rubber is less likely to vary.

According to the manufacturing method of the invention described in claim 8 ,
The unvulcanized rubber injected into the mold after the cable is arranged is melted in the mold by heating, and then vulcanized and cured to form the box body and the box body. Since the filling member fills the space between the box and the cable, there is no gap between the box body and the cable, so that dew condensation does not occur as in the conventional example, and there is no danger of electric leakage due to moisture due to dew condensation.
Moreover, since the thickness of the vulcanized rubber obtained by heating the unvulcanized rubber is the size of the pin, the thickness of the cable joint box itself having the thickness of the vulcanized rubber is less likely to vary.

According to the manufacturing method of the ninth aspect ,
In addition to the effects of the invention as set forth in claims 5 to 8, the pin is housed in the mold while the mold is being heated or pressed, so that the pin is heated or pressed before the mold is heated. There is no longer any through hole that would have been formed at the location where it was located, and the appearance can be improved.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing a first embodiment of the present invention.

FIG. 2 is a joint joint for a cable manufactured by the above.
It is a perspective view of a box .

FIG. 3 is a perspective view showing a sandwiched state of a cable when one of the insulating members is made of vulcanized rubber.

FIG. 4 is an exploded perspective view showing a second embodiment of the present invention.

FIG. 5 is a joint board for a cable manufactured by the above.
It is a perspective view in the state where the joint part of the cable was arranged in the pinching member of the box .

FIG. 6 is a joint joint for a cable manufactured by the above.
It is sectional drawing of a box .

FIG. 7 shows a joy for different cables manufactured according to the above.
It is a perspective view of the holding member of a job box .

FIG. 8 is a sectional view showing a third embodiment of the present invention.

FIG. 9 is a sectional view showing a fourth embodiment of the present invention.

FIG. 10 is a sectional view showing a fifth embodiment of the present invention.

FIG. 11 is a sectional view showing a sixth embodiment of the present invention.

FIG. 12 is an exploded perspective view of a conventional example.

FIG. 13 is a perspective view of the same.

[Explanation of symbols]

 1 Box body 2 Cable 2a Electric wire 2b Outer skin 2c Joint 3 Mold 4 Insulation member 5 Filling member 6 Holding member 6a Arrangement 6b Through hole 7 pin

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) H02G 15/10 H02G 3/16 H02G 15/013

Claims (9)

(57) [Claims] 1. A box body made of an insulating material, and a plurality of cables provided with coupling portions for coupling each other,
In a cable joint box in which a box body and a plurality of cables are respectively joined so that a joint portion is sealed in the box body, a filling member made of an insulating material is provided to fill between the box body and the cable. The filling member is
Cable is harder than the box body
A holding member that holds the cable.
By doing so, an arrangement portion for disposing the coupling portion is provided.
And a through-hole that penetrates in the
Cable joint box, characterized in that it is. 2. The cable joint box according to claim 1, wherein the through hole is provided substantially uniformly over the entire surface of the holding member. 3. A box body made of an insulating material, and a plurality of cables provided with coupling portions for coupling each other,
In the manufacture of a cable joint box in which a box body and a cable are joined so that a joint portion is sealed in the box body, at least one of the cables is sandwiched from both sides by an insulating member made of unvulcanized rubber. A method for manufacturing a joint box for a cable, wherein the box body and the cable are joined by hot-pressing the set mold. 4. An insulating member on both sides of the cable is made of unvulcanized rubber, and the cable is clamped from both sides by a clamping member harder than the vulcanized rubber, and the cable is sandwiched between the clamping members. The method for manufacturing a joint box for a cable according to claim 3, wherein the joint box is sandwiched from both sides by an insulating member. 5. The mold according to claim 4, wherein a pin is erected on the holding member, and the cable is arranged on the mold so that the pin is located between the pin and an inner surface of the mold. Manufacturing method of cable joint box. 6. A box body made of an insulating material, and a plurality of cables provided with coupling portions for coupling each other,
In the production of a cable joint box in which the box body and the cable are joined so that the joint portion is sealed in the box body, the cable is sandwiched from both sides by a sandwiching member harder than vulcanized rubber, and the sandwiching member is placed in the middle. The unvulcanized rubber is clamped from both sides by the unvulcanized rubber and placed in the mold so that the pin erected on the holding member is located between the inner surface of the mold and the unvulcanized rubber is injected into the mold A method for manufacturing a cable joint box, comprising joining the box body and the cable by heating a mold. 7. A box body made of an insulating material, and a plurality of cables provided with coupling portions for coupling each other,
In the manufacture of a cable joint box in which the box body and the cable are joined so that the joint is sealed in the box body, a pin that stands the cable at the joint is located between the pin and the inner surface of the mold. Manufacturing a joint box for a cable, wherein the box body and the cable are joined by disposing in a mold together with unvulcanized rubber, heating the mold, and hot-pressing the mold. Method. 8. A box body made of an insulating material, and a plurality of cables provided with coupling portions for coupling each other,
In the manufacture of a cable joint box in which the box body and the cable are joined so that the joint is sealed in the box body, a pin that stands the cable at the joint is located between the pin and the inner surface of the mold. The box body and the cable are joined by injecting unvulcanized rubber between the inner surface of the mold and the cable and heating the mold. Method of manufacturing a joint box for a cable. 9. The production of a cable joint box according to any one of claims 5 to 8, characterized in that the pin on the way is heated press or heat the mold to accommodate to the mold Method.