JPH08227618A - Cable unit discriminating method - Google Patents

Abstract

PURPOSE: To provide cable unit discriminating method,which can prevent the easy generation of looseness of color tapes (rough winding) during the terminal processing and which can securely and quickly discriminate cable unit. CONSTITUTION: As a color tape to be wound around each unit twisting core for cable core twisting, self-adhesive plastic tapes 2, 3 are used, and these two self-adhesive plastic tapes are made to cross each other in the opposite direction so as to be roughly wound in the net, and the generation of looseness is prevented by the restricting force of the net-shape rough winding of the tape. With this method, the self-adhesive plastic tapes are forcibly adhered to each other at a cross part thereof by the hot air at a low temperature (50-80 deg.C), and the generation of looseness can be securely prevented at the cross part of the tapes.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for recognizing a cable unit by winding a color-coded tape for each unit-twisted core of a cable core twist.

[0002]

2. Description of the Related Art Conventionally, when identifying a twisted core of a cable unit, a polyethylene-based color tape is roughly wound spirally for each unit,
The color identification tape was checked to identify the unit. It is used in communication cables and the like.

In the conventional cable unit identification method as described above, since one color-coded tape is roughly wound in a spiral shape, the wire core (twisted unit) and the color-coded tape are categorized in the terminal treatment at the time of laying the cable. There was the annoyance that the tape would come loose and it would be difficult to distinguish the unit colors. In particular, the roughly wound color-coded tape (width of about 2 mm) is a polyethylene-based non-adhesive spiral-shaped (constant pitch) coil that is unwound when the holding tape on the core assembly is removed. This is a problem for people involved in cable construction, and there has been a demand for an identification method that prevents the color-coded tape from unraveling.

Therefore, an object of the present invention is to solve the above-mentioned problems of the prior art and to perform color-coded tape (coarse winding) during terminal processing.
It is an object of the present invention to provide a method for identifying a cable unit, in which the unit is prevented from fraying easily and the unit can be identified more reliably and quickly.

[0005]

The method of identifying a cable unit provided by the present invention uses a self-adhesive plastic tape as a color-coded tape that is wound around each unit twist core of cable core twisting. Two self-adhesive plastic tapes are alternately wound in opposite directions and roughly wound in a mesh shape, and thus the raveling is prevented by the restraining force of the mesh-like rough winding of the tape.

In the above method, the crossing portion of the self-adhesive plastic tape is forcibly adhered by hot air at a low temperature (50 ° C. to 80 ° C.), so that the adhesive force at the intersecting portion of the tape prevents fraying. It can be made stronger.

[0007]

1 shows an embodiment of a cable unit identifying method according to the present invention. That is, two self-adhesive plastic tapes 2 and 3 are used as color-coded tapes to be wound around the unit-twisted core 1 for twisting cable cores, and these self-adhesive plastic tapes 2 and 3 are placed on the unit-twisted core 1 It is formed by crossing alternately in opposite directions and roughly winding in a mesh.

However, the self-adhesive plastic tapes 2 and 3 have such a property that they can be adhered to each other even at room temperature, and the adhesive strength at the crossing portions of the tape can prevent the tape from fraying. To do. In addition, the self-adhesive plastic tapes 2 and 3 have a low temperature of 50 ° C to 80 ° C.
It is assumed that the contact portions of the tapes, that is, the intersecting portions can be forcibly adhered only by applying the hot air, and the close contact of the intersecting portions can be further strengthened.

As a tape which meets the above various conditions,
"Special surface protection film for resin plate" manufactured by Tama Poly Co., Ltd .: Plastic Top 640 is available. This plastic top 640
The feature of is that it is not a type that applies an adhesive, so there is no fear of adhesive residue, the adhesive strength is stable over time, the peeling strength is small and the peeling workability is good, and the bonding temperature is at room temperature ( It can be mentioned that the adhesive force does not change significantly even when the temperature changes from 20 ° C.) to a high temperature (80 ° C.), and it is optimal as the self-adhesive plastic tapes 2 and 3 of this embodiment.

[0010]

As described above, in the cable unit identifying method of the present invention, the self-adhesive plastic tape is used as the color-based tape wound around each unit twist core of the cable core twisting, and this self-adhesiveness is used. When two pieces of plastic tape are crossed in opposite directions and are roughly wound in a mesh shape, and the raft is prevented by the restraining force due to the mesh-like rough winding of the tape, it is possible to end the terminal treatment at the time of laying the cable. The problem that the wire core (twisted units) and the color-coded tapes are separated and the unit color is difficult to distinguish is solved,
The effect is that the color-coded tape will not be unraveled.

Further, by forcibly adhering the intersecting portion of the self-adhesive plastic tape with hot air at a low temperature (50 ° C. to 80 ° C.), the adhesive force at the intersecting portion of the tape can be made stronger.

[Brief description of drawings]

FIG. 1 is an explanatory diagram showing an embodiment of a cable unit identification method according to the present invention.

[Explanation of symbols]

1 unit twisted core 2,3 Self-adhesive plastic tape as color tape

Claims (2)

[Claims] 1. A method of identifying a cable unit by winding a color-coded tape for each twist core of a unit for twisting cable cores, wherein a self-adhesive plastic tape is used as the color-coded tape. A method for identifying a cable unit, characterized in that two tapes are alternately crossed in opposite directions and roughly wound in a mesh shape. 2. The cable unit identifying method according to claim 1, wherein the intersecting portions of the self-adhesive plastic tape are forcibly adhered by hot air at a low temperature (50 ° C. to 80 ° C.).