JPH06335134A - Manufacture of unit cable and branch case - Google Patents

Abstract

PURPOSE:To provide a branch case and a manufacturing method for a unit cable, in which resin molding work is carried out easily by surely fitting a connection part in the branch case and surely fixing the cable in the branch case. CONSTITUTION:A manufacturing method for a unit cable includes a cable cutting step 1 for cutting an interior wiring cable previously to a given length and putting a piece of wiring information in a place near the cut end on the cable, and a connecting step 10 for connecting the cables with a ring sleeve on the basis of the information at the end part of the cable and insulating the connection part by using a heat-resistant insulating cap. Moreover, the manufacturing method for the unit cable includes a cable setting step 15 for inserting the connection part into a branch case and inserting the cable through a fitting part of the branch case into a cable inserting groove so that the cable is fitted therein or fixed with a cable fixing member, and a resin molding step 25 for covering the inside and surrounding part of the branch case with mold resin.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of manufacturing a unit cable used for indoor wiring and a branch case.

[0002]

2. Description of the Related Art A conventional unit cable is constructed by cutting a cable used for indoor wiring to a preset length and connecting the plurality of cables to a set state by wiring. After insulation treatment, the connection part is stored in the branch case, and the cable is inserted into the U-shaped cable insertion groove of the branch case corresponding to the groove. And the surrounding is covered with a mold resin material.

[0003]

[Problems to be Solved by the Invention] A conventional unit case
When connecting cables of different lengths by wiring,
It is difficult to check the cable and it is easy to miswire, and the cable inserted in the cable insertion groove of the branch case cannot be fixed when molding the mold.
It had the drawback of using nerves to fix the position of the bull.

In view of the above-mentioned conventional drawbacks, the present invention has been made.
The wiring connection work of the cable can be done easily without erroneous wiring, and the molded cable work can be done by securely locking the connected cable into the cable insertion groove of the branch case. It is an object of the present invention to provide a unit cable manufacturing method and a branch case that can be easily manufactured.

The above and other objects and novel characteristics of the present invention will become more fully apparent when the following description is read in view of the accompanying drawings. However, the drawings are for explanation only and do not limit the scope of the present invention.

[0006]

In order to achieve the above object, the present invention cuts a cable used for indoor wiring to a preset length, and wiring information is provided at a portion near the cut end. The cable cutting process for mounting the cable and the multiple cables cut in this cable cutting process are attached to the ends of the cable according to the wiring information. And a connection step in which the connection portion is insulated with a heat-resistant insulating cap,
After this connecting step, the connecting portion is inserted into a branch case having a cable insertion groove with a locking portion formed on the peripheral wall, and the cable is passed through the locking portion of the branch case. -A cable setting process in which the cable is inserted and locked in the cable insertion groove or locked by a cable fixing member, and after the cable setting process, the inside and around the branch case is moored.
The unit resin manufacturing method is composed of a mold resin material molding step of covering with a mold resin material.

Further, according to the present invention, a bottom plate, a peripheral wall integrally formed on the outer peripheral portion of the bottom plate so as to project upward, and an upper portion formed on the peripheral wall are opened, and a cable locking portion is formed in the middle thereof. A plurality of cable insertion grooves formed respectively, a bolt insertion hole formed in substantially the central portion of the bottom plate, and an upper surface of the bottom plate integrally or separately attached so as to communicate with the bolt insertion holes. It forms a branch case with the pipe.

In the method of manufacturing the unit cable constructed as described above, a plurality of cables can be connected by the wiring information attached to the portion near the cut end of the cable, and The cable is fixed in the cable insertion groove by inserting the connecting part into the branch case and pushing the cable into the cable insertion groove so as to pass through the locking part. .

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention will be described in detail below with reference to the embodiments shown in the drawings.

In the first embodiment of the present invention shown in FIGS. 1 to 9, 1 is a plurality of wires which are wired indoors through a branch case, and in the present embodiment, 8 wires having a preset length. -Bull 2, 2A, 2B, 2C, 2D, 2E, 2F, 2G
2 is cut as shown in FIG. 2, and wiring information 3, 3A, 3B, 3C, 3D, 3E, and
This is a cable cutting process for mounting 3F and 3G.
A, 2B, 2C, 2D, 2E, 2F, 2G insulation coatings with different lengths and colors 4, 4A, 4B, 4C, 4D, 4E, 4
A two-conductor cable or a three-conductor cable using F and 4G is used.

The wiring information 3, 3A, 3B, 3C, 3
As shown in FIG. 3, D, 3E, 3F, and 3G have adhesive 5 attached to the back surface, and the cable number 6 and the color of the cable lead wire,
For example, black wire B, white wire W, red wire R, and 7,
An adhesive sheet having a cable number 8 and a connecting conductor symbol 9 connected to the conductor in which the conductor 7 is described is used.

Reference numeral 10 denotes the cables 2, 2A, 2B, 2C, 2D, 2E, 2 cut in the cable cutting step 1.
Wiring information 3, 3A, 3 attached to the ends of F and 2G
B, 3C, 3D, 3E, 3F, 3G, the connection step using the ring sleeve 11 as shown in FIG. 4 and the heat resistant insulation cap 12 as shown in FIG. As shown in FIG. 4, the cables 2, 2 are
Insulating coatings 4, 4A, 4B, 4C, 4D, 4E, 4F, 4G of A, 2B, 2C, 2D, 2E, 2F, 2G show the conducting wires 14, 14 at the tip of the conducting wire cables 13, 13. And the exposed conductors 14, 14 for wiring information 3, 3.
Insert two or more conductive wires 14, 14 to be connected by A, 3B, 3C, 3D, 3E, 3F, 3G into the ring sleeve 11 and crush the ring sleeve 11 to connect the wires, and the connection portion As shown in FIGS. 5 and 6, the heat-resistant insulating cap 12 is attached to perform insulation treatment.

The heat-resistant insulating cap 12 is made of a heat-resistant insulating material having elasticity and is formed in a cap shape capable of covering the ring sleeve 11 and the exposed conductor 14 part.

After the connection step 10, the connection portion 15 of the connection cable 2X is inserted into the branch case 16 of the present invention, and each cable 2, 2A, 2 of the connection cable 2X is inserted.
B, 2C, 2D, 2E, 2F, 2G are connected to the branch case 1
The branch case 16 used in the cable setting step 15 is a disk-shaped bottom plate 17 and the outer periphery of the bottom plate 17 as shown in FIGS. 7 and 8. Peripheral wall 18 integrally formed so as to project upward in the portion
And a plurality of upper portions formed on the peripheral wall 18 with an opening,
In this embodiment, eight cable insertion grooves 19 are formed, and an upper portion formed on the center wall surface of each cable insertion groove 19 is an inclined surface 20 and a lower portion is a substantially horizontal surface 21 to be inserted. -Locking portions 22 and 22 for fixing the bull, and a bolt insertion hole 23 formed substantially in the center of the bottom plate 17.
And the bottom plate 1 so as to communicate with the bolt insertion hole 23.
7 and an attachment pipe 24 integrally formed on the upper surface of the attachment 7.

After the cable setting step 15, a mold 25 (not shown) is used to cover the inside and periphery of the branch case 16 with a mold resin material 26 as shown in FIG. This is a molding process for molding resin material.

The unit cable 27 manufactured by the above-mentioned method is transported to the site, and after fixing the branch box 28 at a predetermined position by the bolt 29 penetrating the mounting pipe 24, each cable is wired.

[0017]

Different Embodiments of the Present Invention Next, different embodiments of the present invention shown in FIGS. 10 to 18 will be described. In the description of these different embodiments of the present invention, the same components as those of the first embodiment of the present invention will be designated by the same reference numerals and redundant description will be omitted.

The second embodiment of the present invention shown in FIGS. 10 to 12 is mainly different from the first embodiment of the present invention in that the lower end of the mounting pipe 24 is located substantially in the center of the upper surface of the bottom plate 17. Branch case 1 having a recess 30 to be inserted and fixed
In the case of using 6A, the branch case 1 thus formed is
Even if 6A is used, the same effect as that of the first embodiment of the present invention can be obtained.

The third embodiment of the present invention shown in FIGS. 13 to 15 is mainly different from the first embodiment of the present invention in that a rectangular bottom plate 17A is used to form a peripheral wall 18A into a rectangular tubular shape. At the point of formation, the branch case 16 configured in this way
Even if B is used, the same effect as that of the first embodiment of the present invention can be obtained.

The fourth embodiment of the present invention shown in FIGS. 16 to 18 is mainly different from the first embodiment of the present invention in that a clip-shaped cable covering the opening of the cable insertion groove 19 is provided. In that the branch case 16C is constructed by using the cable fixing member 31, the branch case 16C constructed in this way has the same effect as that of the first embodiment of the present invention. To be The cable fixing member 31 has a cable insertion groove 19
Clip 3 sandwiched by the peripheral wall 18 so as to cover the opening of the
2 and a pressing piece 33 for pressing one side of the clip 32 downward to press the insertion cable.

[0021]

As is apparent from the above description, the following effects can be obtained in the present invention.

(1) A cable cutting step of cutting a cable used for indoor wiring to a preset length and attaching wiring information to a portion near the cut end, and the cable cutting step.
A plurality of cables cut in the cable cutting process are connected to each other using a ring sleeve according to the wiring information attached to the ends of the cables, and the connecting portions are connected. Insert the connecting part into a branch case that has a cable insertion groove with a locking part formed on the peripheral wall after the connecting step of insulating with a heat resistant insulation cap, and branch the cable. -A cable that is inserted and locked or inserted into the cable insertion groove by passing through the locking portion of the seat.
It consists of a cable set process that locks the cable with a cable fixing member, and a mold resin material molding process that covers the inside and surroundings of the branch case with a mold resin material after this cable set process. Since the cable is connected, it is possible to securely connect the cables without miswiring and to connect the cables.
The bull cutting process can also be performed efficiently.

(2) According to the above (1), after the connection portion of the connection cable is housed in the branch case, the cable is pushed into the cable insertion groove so as to pass through the locking portion. By doing so, the cable is fixed to the branch case, the connecting part does not rise, and the work of attaching to the branch case can be done easily and the molding process of the molded resin material can be performed easily. You can

(3) According to the above (1) and (2),
Since the molding process of the molded resin material can be performed easily and surely, a highly reliable unit cable can be manufactured.

(4) Claims 2 and 3 are also the above (1) to (3).
The same effect as can be obtained.

[Brief description of drawings]

FIG. 1 is a process drawing showing a first embodiment of the present invention.

FIG. 2 is an explanatory view of a cable cutting process.

FIG. 3 is an explanatory diagram of wiring information.

FIG. 4 is an explanatory diagram of a connecting step.

5 and 6 are explanatory views of a mounted state of the heat resistant insulation cap.

7 and 8 are explanatory views of a branch case.

FIG. 9 is an explanatory diagram of a unit cable.

FIGS. 10 to 12 are explanatory views showing a second embodiment of the present invention.

FIG. 13 to FIG. 15 are explanatory views showing a third embodiment of the present invention.

16 to 18 are explanatory views showing a fourth embodiment of the present invention.

[Explanation of symbols]

1: Cable cutting step, 2, 2A to 2G:
Cables 3, 3A to 3G: Wiring information, 4, 4
A to 4G: insulating coating, 5: adhesive,
6: Cable number, 7: Conductor symbol,
8: Cable number, 9: Connection lead wire symbol,
10: connection process, 11: ring sleeve,
12: Heat-resistant insulating cap, 13: Conductor cable, 14: Conductor, 15: Cable setting process, 16, 16A, 16B, 16C: Branch case, 1
7, 17A: bottom plate, 18, 18A: peripheral wall, 19: cable insertion groove, 20: inclined surface, 21: horizontal surface, 22: locking portion, 23: bolt insertion hole, 24: mounting pipe, 25: mower Molded resin material molding process, 26: Molded resin material, 27: Unit cable, 2
8: branch box, 29: bolt,
30: concave portion, 31: cable fixing member, 3
2: clip, 33: pressing piece.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Tsutomu Kato 4125 Saitama Prefecture Gyoda City Toyokuni Electric Wire Co., Ltd. Saitama Factory

Claims (3)

[Claims] 1. A cable cutting step of cutting a cable used for indoor wiring to a preset length and attaching wiring information to a portion near the cut end, and this cable cutting step. According to the wiring information attached to the ends of the cables, a plurality of cables that have been cut with the cable are connected to each other using a ring sleeve, and the connection parts are heat-resistant insulating caps. Insulation process is performed with the cable, and after the connection process, the connecting portion is inserted into the branch case having the cable insertion groove with the locking portion formed on the peripheral wall, and the cable is connected to the branch case. A cable setting step of passing the locking portion and inserting or locking the inserted or locked cable into the cable insertion groove with a cable fixing member,
A method of manufacturing a unit cable, comprising a step of molding a molded resin material in which the inside and the periphery of the branch case are covered with a molded resin material after the cable setting step. 2. A bottom plate, a peripheral wall integrally formed on an outer peripheral portion of the bottom plate so as to project upward, an upper portion formed on the peripheral wall is opened, and a cable locking portion is formed in the middle thereof. A plurality of cable insertion grooves, a bolt insertion hole formed substantially in the center of the bottom plate, and a pipe integrally or separately attached to the upper surface of the bottom plate so as to communicate with the bolt insertion holes. A branch case characterized by consisting of
Su. 3. A bottom plate, a peripheral wall integrally formed with an outer peripheral portion of the bottom plate, a plurality of cable insertion grooves formed in the peripheral wall and having an upper portion opened, and formed in a substantially central portion of the bottom plate. Bolt insertion hole, a mounting pipe that is integrally or separately attached to the upper surface of the bottom plate so as to communicate with the bolt insertion hole, and a cable that is inserted into the cable insertion groove.
A branch case comprising a cable fixing member that covers the opening of the cable insertion groove so as to prevent the cable from coming off.