JP3442275B2 - Unit cable manufacturing method - Google Patents

Description

Detailed Description of the Invention

[0001]

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

[0002]

2. Description of the Related Art Conventionally, a unit cable is prepared by cutting a cable to a preset length to prepare a plurality of cables, and wiring the plurality of cables in a set state to insulate the connection portion. After insulating with tape, the connection part is housed in a branch case body or a case body, and the inside is filled with a mold resin material for manufacturing.

[0003]

In the conventional method of manufacturing a unit cable, it takes a lot of time to perform insulation treatment after connecting a plurality of cables, and it takes time to solidify the branch case body or the molded resin material filled in the case body. However, there is a drawback that manufacturing efficiency is low.

In view of the above-mentioned conventional drawbacks, the present invention has been made.
An object of the present invention is to provide a method for manufacturing a unit cable in which insulation treatment after connecting a plurality of cables is reliable and can be performed easily and efficiently in a short time.

The above and other objects and novel features 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 only for explanation and do not limit the technical scope of the present invention.

[0006]

In order to achieve the above object, the present invention is to connect a plurality of cables to each other by connecting the conductors at the ends of preset cables to each other using a ring sleeve. A cable connecting step for attaching an insulating cap to each part and an insulating cover layer forming step for forming an insulating cover layer by dipping and drying the connecting portion into a molten tank of insulating synthetic resin material after this cable connecting step It constitutes a manufacturing method.

[0007]

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 10, reference numeral 1 is a cable connecting step, and this cable connecting step 1 is a plurality of wires wired indoors, and in the embodiment of the present invention, 20 wires. A cable cutting step 3 in which the cable 2 is cut to a preset length, and a portion near the end of the cable 2 cut in the cable cutting step 3,
As shown in FIG. 4, the cable number 4, the color of the cable core wire,
For example, wiring information such as black B, white W, red R core wire symbol 5, cable number 6 connected to the core wire having this core wire symbol 5 and connection core wire symbol 7 is described. As shown in FIG. 3, a wiring information tape attaching step 9 for adhering and fixing the wiring information tape 8 and a wiring information of the wiring information tape 8 after the wiring information tape attaching step 9 are used.
As shown in, conductors 10 and 1 at the ends of a plurality of cables 2
0 is connected using a ring sleeve 11 respectively, and an insulating cap 13 is attached to each of the portions connected in the conductor connecting step 12 as shown in FIG. 6 to cover the conductor portion. It consists of and. As the cable 2 used in the cable cutting step 3, a two-core cable or a three-core cable using an insulating coating having a different color depending on the purpose of use is used. Further, instead of the wiring information tape attaching step 9, the wiring information may be printed on a portion near the end of the cut cable 2.

After the cable connecting step 1, 15 is shown in FIG.
In the cable fixing step of fixing the plurality of cables 2 in the vicinity of the connection part 16 in the aligned state by the cable fixing tool 17 as shown in FIG. Screw insertion hole 18,
The one in which 18 is formed is used.

Reference numeral 19 denotes an insulating cover layer forming step of forming an insulating cover layer 20 on the connecting portion 16 after the cable fixing step 15. This insulating cover layer forming step 19 is shown in FIG.
As shown in FIG. 9, a connecting step 16 is performed on the insulating synthetic resin material melting bath 21 by a depping step 22, and after the depping step 22, a portion depped is shown in FIG.
As shown in (4), it is composed of an infrared dryer 23 and a drying step 24 of solidifying by drying in an oven or the like.

In the unit cable 25 manufactured through the above-described steps, the cable fixture 17 is fixed to a preset portion, and then the cable 2 is routed to each portion.

[0012]

Different Embodiments of the Invention Next, FIGS.
Different embodiments of the present invention shown in FIG. 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 denoted by the same reference numerals and redundant description will be omitted.

The second embodiment of the present invention shown in FIGS. 11 to 13 is mainly different from the first embodiment of the present invention in that the cable fixing member 17 is attached after the insulating cover layer forming step 19. After mounting, the unit cable 25A may be manufactured in this way in that the case body mounting step 27 of covering the outer peripheral portion of the insulating cover layer 20 with the case body 26 is performed.

The third embodiment of the present invention shown in FIGS. 14 and 15 is mainly different from the first embodiment of the present invention in that the insulating cover layer 20 is formed after the insulating cover layer forming step 19. The unit cable 25B may be manufactured in this manner in that the case body attaching step 27 of covering the outer peripheral portion with the case body 26 is performed.

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 the cable connecting step 1A is performed without using an insulating cap. , Insulating cover layer forming step 19
The unit cable 25C may be manufactured in this manner in that the separation step 28 of arranging the connection portion 16 so as not to come into contact with it is performed before the A dipping step 22.

The fifth embodiment of the present invention shown in FIGS. 19 and 20 is mainly different from the fourth embodiment of the present invention in that the insulating cover layer 20 is formed after the insulating cover layer forming step 19A. The unit cable 25D may be manufactured in this manner in that the case body attaching step 27 of covering the outer peripheral portion with the case body 26 is performed.

The sixth embodiment of the present invention shown in FIGS. 21 to 23 is mainly different from the third embodiment of the present invention in that an insulating cover layer forming step 19B which does not use a drying step is performed. After the use, the case body attaching step 27 is performed. By manufacturing the unit cable 25E in this manner, the depping portion is solidified during storage after the case body 26 is attached, so that the unit body 25E can be efficiently manufactured. it can.

[0018]

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

(1) A cable connecting step in which a plurality of cables are connected to each other by connecting the conductors at the ends of the preset cables using a ring sleeve, and then an insulating cap is attached to each of these connecting portions; After the connection process, the insulation cover layer forming process is performed to form the insulation cover layer by dipping and drying the connection part in the insulating synthetic resin material melting tank. It can be simply dried by dipping in a tank. Therefore, the operation is easy and anyone can surely perform the operation.

(2) According to the above (1), the ends of a plurality of cables are connected and the parts are dipped into the melting tank of the insulating synthetic resin material, so that the work is easy and can be performed in a short time. You can Therefore, the cost can be reduced.

(3) According to the above (1), since the connecting portion is covered with the insulating cover layer, it can be used as it is and can be economically used.

(4) According to claim 2, the same effect as (1) and (2) can be obtained.

[Brief description of drawings]

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

FIG. 2 is an explanatory diagram of a state in which the cable according to the first embodiment of the present invention is connected.

FIG. 3 is an explanatory diagram of a state in which the wiring information tape according to the first embodiment of this invention is attached.

FIG. 4 is an explanatory diagram of a wiring information tape according to the first embodiment of this invention.

FIG. 5 is an explanatory diagram of a conductor connecting step according to the first embodiment of this invention.

FIG. 6 is an explanatory diagram of an insulating cap attaching step according to the first embodiment of the present invention.

FIG. 7 is an explanatory diagram of a cable fixing step according to the first embodiment of this invention.

FIG. 8 is an explanatory diagram of a depping process according to the first embodiment of this invention.

FIG. 9 is an explanatory diagram of a drying process according to the first embodiment of this invention.

FIG. 10 is an explanatory diagram of a unit cable according to the first embodiment of this invention.

FIG. 11 is a process drawing of the second embodiment of the present invention.

FIG. 12 is an explanatory diagram of a depping step according to the second embodiment of this invention.

FIG. 13 is an explanatory diagram of a case body attaching step according to the second embodiment of the present invention.

FIG. 14 is a process drawing of the third embodiment of the present invention.

FIG. 15 is an explanatory diagram of a case body attaching step according to the third embodiment of the present invention.

FIG. 16 is a process drawing of the fourth embodiment of the present invention.

FIG. 17 is an explanatory diagram of a cable connecting step according to the fourth embodiment of this invention.

FIG. 18 is an explanatory diagram of an insulating cover layer forming step according to the fourth embodiment of the present invention.

FIG. 19 is a process drawing of the fifth embodiment of the present invention.

FIG. 20 is an explanatory diagram of a case body attaching step according to the fifth embodiment of the present invention.

FIG. 21 is a process drawing of the sixth embodiment of the present invention.

FIG. 22 is an explanatory diagram of an insulating cover layer forming step according to the sixth embodiment of the present invention.

FIG. 23 is an explanatory diagram of a case body attaching step according to the sixth embodiment of the present invention.

[Explanation of symbols]

1, 1A: Cable connection process, 2: Cable,
3: Cable cutting process, 4: Cable number,
5: core wire symbol, 6: cable number to be connected, 7: connection core wire symbol, 8: wiring information tape, 9: wiring information tape attaching step, 10: conductor, 11: ring sleeve, 12: conductor connecting step, 13: Insulation cap, 14: Insulation cap installation process, 15: Cable fixing process, 16: Connection part, 17: Cable fixing tool,
18: screw insertion hole, 19, 19A, 19B: insulating cover layer forming step, 20: insulating cover layer, 21: melting tank,
22: Depping step, 23: Infrared dryer, 24:
Drying process, 25, 25A, 25B, 25C, 25D, 2
5D: Unit cable, 26: Case body, 2
7: Case body mounting process, 28: Separation process.

─────────────────────────────────────────────────── ─── Continuation of the front page (56) Reference JP-A-2-10614 (JP, A) JP-A-8-88917 (JP, A) JP-A-4-33287 (JP, A) JP-A-62-1 155717 (JP, A) Actual development Sho 62-178722 (JP, U) (58) Fields investigated (Int.Cl. ⁷ , DB name) H02G 1/14 H02G 15/04 H01B 13/00 H01B 13/32

Claims (2)

(57) [Claims] 1. A cable connecting step in which a plurality of cables are connected to each other by connecting the conductors at the ends of the preset cables using a ring sleeve, and then an insulating cap is attached to each of these connecting portions, and the cable connecting step. An insulating cover layer forming step of forming an insulating cover layer by dipping the connection portion into a melting tank of an insulating synthetic resin material and drying after the step. 2. A cable connecting step of connecting a plurality of cables to each other by using a ring sleeve to connect conductors of end portions of preset cables, and after the cable connecting step, the plurality of cables in the vicinity of the connecting portion are connected. A cable fixing step of fixing the cables in an aligned state with a cable fixing tool, and arranging so that the connection portions do not come into contact after the cable fixing step, and the connection portions are dipped in a melting tank of an insulating synthetic resin material and dried. An insulating cover layer forming step of forming an insulating cover layer is included.