JP6529351B2 - How to identify the cable - Google Patents

Description

  The present invention relates to a method of specifying a cable applicable when removing a cable in a plant, communication facility or the like.

In plants and communication facilities, cables for power supply or communication are arranged. Depending on the installation location, this cable is run around over a long distance.
It is necessary to remove the existing cable and install a new cable by adding or changing the equipment. At this time, in the removal work of the existing cable, the cut cable is cut with markings at predetermined intervals from one end of the cable extended over a long distance toward the other end according to the convenience of transporting the cut cable. It is removing. When cutting the cable, care must be taken not to cut the cable that is not intended to be removed accidentally.

Conventionally, there are techniques disclosed in Patent Literatures 1 to 4 as techniques for preventing erroneous cutting of a cable.
The false cutting prevention device disclosed in Patent Document 1 sends an electric signal to a cable to be removed using a signal transmitter and a signal receiver, and performs a cutting operation after specifying a cable to be removed.
In the cable identification method disclosed in Patent Document 2, a color changing paint is applied to the cable for each predetermined section, and the core wire and shield wire at each end of the cable are electrically connected to apply a voltage. And the cable is specified by the color change due to the heat of the paint.
In the cable removal method disclosed in Patent Document 3, a cable around which a ring is wound is determined as a removal target cable by moving from one end of the cable to be removed through the ring along the cable.
The cable removal method disclosed in Patent Document 4 moves along the cable from one end of the removed cable through the ring. During the operation, it can be visually confirmed that the cable is a cable to be removed.

JP-A-11-331049 Unexamined-Japanese-Patent No. 2004-282820 JP, 2014-96972, A JP 2001-251718 A

However, the techniques disclosed in Patent Literatures 1 and 2 require a device to be electrically connected to at least one end of the cable. Such devices are expensive and take time to prepare and identify cables.
In addition, while the ring disclosed in Patent Documents 3 and 4 can be determined as a cable to be removed while moving the ring along the cable, after removing the ring, no mark remains and the mark is removed. It can not be judged whether it is a cable to

  SUMMARY OF THE INVENTION In view of the above-mentioned problems of the prior art, the present invention is to provide a method of identifying a cable which can easily and reliably identify any cable from a plurality of cables.

As a first means for solving the above problems, according to the present invention, the long hole is wound in a roll, and the hole of a specific roll provided with a hole through which a specified cable among the cable bundle passes is provided at the center of the roll. Passing the cable through the cable, securing one end of the elongated object inside the hole to the cable, moving the specified roll along the longitudinal direction of the cable, and pulling out the elongated material And a step of winding around the cable.
According to such a first means, the long material can be easily wound around any cable, and even after the specific roll is removed from the cable, any cable around which the long material is wound can be easily identified. It is possible to prevent accidental disconnection when the cable is disconnected.

As a second means for solving the above-mentioned problems, a long article is wound in a roll, and a hole through which a specified cable in a bundle of cables passes is provided at the center of the roll, and the long article inside the hole Providing a specific roll of cable characterized in that one end of the cable is attached to and pulled out from the cable passing through the hole.
According to such a second means, the long material can be easily wound in a spiral along the longitudinal direction of the cable through the hole. For this reason, the cable through which the specific roll has passed is in a state in which the long material is wound, and can be easily identified.

As a 3rd means to solve said subject, the said elongate means is using the film of a thermoplastic resin in the said 2nd means, The specific roll of the cable of Claim 2 characterized by the above-mentioned To provide.
According to such a third means, the thermoplastic resin film drawn from the specific roll is wound around the cable to be in close contact with the cable surface, and even after the specific roll is removed from the cable, the close contact state is maintained. You can easily identify the cable.

As a fourth means for solving the above-mentioned problems, it has a cylindrical holder main body which covers the outer periphery of a specific roll of the cable described in the second or third means, and the holder main body is made of the specific roll. Another object of the present invention is to provide a specific roll holder for a cable characterized by comprising a flange portion covering a part of end surfaces of both ends.
According to such a fourth means, the use of the specific roll of the cable reduces the number of turns of the long object, and the holder covers the outer periphery of the specific roll which has become difficult to maintain the roll form. It can be supported. For this reason, the length of the specific roll can be easily pulled out along the longitudinal direction of the cable.

  According to the present invention, since the long material is wound around the cable through the specific roll of the cable, the cable can be easily specified even after the specific roll is removed from the cable. In addition, the cable after being cut and removed remains in the state of being wound with a long object, which provides evidence of the specified cable.

It is explanatory drawing of the specific roll of the cable of this invention. It is explanatory drawing of the specific roll holder of the cable of this invention. It is process drawing of the operation | work procedure of the identification method of the cable of this invention.

  Embodiments of the inventive cable identification method will be described in detail below with reference to the accompanying drawings.

[Specific roll of cable 10]
FIG. 1 is an explanatory view of a specific roll of the cable of the present invention. As illustrated, the specific roll (hereinafter simply referred to as a specific roll) 10 of the cable of the present invention is a roll obtained by rolling the long material 20 into a roll. The long material 20 of this embodiment uses a film of a thermoplastic resin as an example. As a thermoplastic resin, polyethylene, polyvinyl chloride, polyvinylidene chloride, polyvinyl alcohol, polypropylene, polyester, polycarbonate, polystyrene, polyacrylonitrile, ethylene vinyl acetate copolymer, ethylene-vinyl alcohol copolymer, ethylene-methacrylic acid copolymer Polymers, polyamides and the like can be applied.
In addition, the elongate material 20 can apply the string etc. which used the thermoplastic resin in addition to this, the tape etc. which apply | coated the adhesive agent to one main surface.

The specific roll 10 is provided with a hole 30 at the center of the roll through which the cable 12 to be removed of the cable bundle passes, in other words, the diameter of the cable 12 to be removed. The cable 12 to be removed may be a bundle or a plurality of bundles, and the diameter of the hole 30 is arbitrarily changed so as to be the diameter through which the bundle or bundles pass.
Further, one end of the long object 20 is exposed on the inner wall of the hole 30. One end of the long piece 20 may be easily fixed to the cable 12 by passing the cable 12 to be removed through the hole 30 and then pulling it out and winding it around the outer circumference of the cable or using an adhesive means. it can

  Such a specific roll 10 depends on the diameter of the cable 12 to be removed. As an example, the thickness of the long object 20 is several tens of μm, the length is several hundreds of meters, and the width is several tens of mm. It can be formed into a shape.

[Specific Roll Holder 40 for Cable]
FIG. 2 is an explanatory view of a specific roll holder of the cable. As illustrated, the cable specific roll holder (hereinafter simply referred to as a specific roll holder) 40 includes a cylindrical holder main body 50 covering the outer periphery of the specific roll 10. The holder main body 50 is provided with a housing space for a specific roll inside, and the end faces are all open, and the long roll 20 of the specific roll 10 can be pulled out from this opening.

Further, a flange 52 is formed on the end face of the holder main body 50. The flange portion 52 is formed in the shape of a flange whose front end protrudes toward the center so that the opening of the holder main body 50 is an opening smaller than the diameter of the specific roll 10. The flanges 52 are formed on both end surfaces of the holder main body 50.
By forming such a flange portion 52, it is possible to prevent the specific roll 10 from falling out of the holder main body 50 when it is pulled out from the inside of the hole 30. Moreover, the roll-shaped form of the specific roll 10 can be supported when the number of turns of the long object 20 decreases. Further, since the flange portions 52 are formed on both end surfaces of the holder main body 50, the long object 20 can be pulled out from either side of both end surfaces of the holder main body 50.

  The holder body 50 adopts a structure in which the holder main body 50 is divided into a plurality of pieces at right angles or in parallel to the axis. The holder main body 50 of this embodiment adopts a structure in which the holder main body 50 is divided into two parts (first and second holders 50a and 50b) in a direction perpendicular to the axial center, and male screw and connection screw at the first and second holders 50a and 50b. It has a female screw process. By holding the specific roll between the first and second holders 50a and 50b and screwing the first and second holders 50a and 50b, the holder main body 50 in which the specific roll is accommodated and fixed in the cylinder can be formed. .

  The divided structure of the holder main body 50 may adopt a structure divided into a plurality of parts in parallel with the axial center. It is preferable to form the holter body 50 by providing asperities at the connection portions in this case and fitting them.

  By using such a specific roll holder 40, the holder can support the specific roll so as to cover the outer periphery of the specific roll whose number of turns of the long object decreases and it has become difficult to maintain the roll form. For this reason, the length of the specific roll can be easily pulled out along the longitudinal direction of the cable.

[Cable identification method]
The specification method of the cable using the said specific roll and a specific roll holder is demonstrated below. FIG. 3 is a flow chart of the operation procedure of the method for identifying a cable of the present invention.

The cable 12 to be removed may be one or more bundles. A special roll 10 is provided with holes 30 of a diameter through which the bundle or bundles pass. A specific roll holder 40 in which the specific roll 10 is disposed is used in the following steps.
As shown in (A), one end of the cable 12 is wound in the hole 30 of the specified roll 10 provided with the hole 30 through which the specified cable 12 of the cable bundle passes in the center of the roll. Pass through.

  As shown in (B), one end of the long object 20 inside the hole 30 is fixed in the vicinity of one end of the cable 12. As a method of fixing the long material 20 to the cable 12, one end of the long material 20 is pulled out from the inside of the hole 30 of the specific roll 10 and wound around the outer circumference of the cable 12 multiple times. It can be easily fixed by adhering to the outer periphery.

  As shown in (C), the specific roll 10 is moved along the longitudinal direction of the cable 12. At this time, the long object 20 is spirally wound around the outer peripheral surface of the cable 12 while being pulled out from the inside of the hole 30 of the specific roll 10. When a thermoplastic resin film is used for the long object 20, the thermoplastic resin film drawn from the specific roll 10 is wound around the cable 12 and closely adhered to the cable surface, and after the specific roll 10 is removed from the cable 12 However, it is possible to easily identify the cable 12 to be removed while maintaining this close contact state.

  As shown in (D), in parallel with the process of moving the specific roll 10 along the longitudinal direction of the cable, a marking 60 is put on the cut portion of the cable 12 around which the long object 20 is wound. According to the cable specifying method of the present invention, even after the specific roll 10 passes, the cable 12 to be removed can be easily recognized by visually checking the cable 12 around which the long material 20 is wound.

As shown in (E), after moving the specific roll 10 to the other end of the cable 12, the specific roll 10 is removed from the other end of the cable 12. Although the identification method using the conventional ring could not identify the cable to be removed when the ring was removed from the cable, the identification method of the present invention wound the long object 20 around the cable 12 to be removed. Can be easily identified.
(F) Thereafter, the cable 12 can be cut off for each mark 60 at the cut portion, and the cable 12 can be easily removed.
The cutting and removing operation may be performed not only after moving the specific roll 10 to the other end of the cable 12 but also whenever the specific roll 10 has passed, even if the cable of the passing part is cut and removed as appropriate. good. In addition, when the long roll 20 of the specific roll 10 is sufficiently wound and the strength of the roll is sufficient, the specific roll 10 is directly used without using the specific roll holder 40 to (A) to (F) The following process may be performed.

  According to such a method of identifying a cable of the present invention, the long material can be easily wound around any cable, and even after the specific roll is removed from the cable, any cable wound with the long material can be used. It can be easily identified, and erroneous cutting at the time of cable cutting can be prevented. In addition, the cable after being cut and removed remains in the state of being wound with a long object, which provides evidence of the specified cable.

  The cable identification method of the present invention is applicable to a plant equipped with a plurality of cables, communication equipment, and the like.

10 ...... Specific roll of cable, 12 ...... Cable, 20 ...... Long object, 30 ...... Hole, 40 ...... Specific roll holder for cable, 50 ...... Holder main body, 50 a ...... 1st holder, 50b ...... 2nd holder, 52 ...... head part, 60 ...... mark.

Claims (1)

Winding the long material into a roll, and passing the cable through the hole of a specific roll provided with a hole in the cable bundle at the center of the roll through which the specified cable passes;
Securing one end of the elongated object inside the hole to the cable;
Moving the specific roll along the longitudinal direction of the cable, and winding the long material while winding the long material around the cable;
A method of identifying a cable comprising:

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