JPH019048Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to a floor cable used for indoor telephone wiring and electronic equipment wiring.

Conventionally, the following two methods have been mainly used to wire telephones and electronic devices on the floor of a room. The first method is to run the cable through a conduit pipe that is pre-buried in the floor, and the second method is to route the cable on the floor and then cover it with a wire protector.

However, the former method has the advantage of being able to route cables without protruding from the floor.
The construction cost of installing conduit pipes is high;
However, although the latter method is easy to install and has a low construction cost, the wire protector protrudes onto the floor, causing an obstruction to pedestrian traffic and the transportation of goods. There is a problem that there is a risk of this happening, and that the aesthetic appearance of the room is also spoiled.

In view of the above circumstances, the applicant proposed a "floor cable" in Utility Application No. 56-142814 (Utility Model Application No. 58-52814), Utility Model Application No. 56-170420 (Utility Model Application No. 58-74719), etc. . These floor cables are made by arranging a large number of core wires parallel to each other in a horizontal row, shielding each pair from each other, and then covering the core wires as one piece with insulation to form a tape-like structure. It has the characteristic that it can be laid under a floor surface and wired without protruding from the floor.

FIG. 1 shows an example of wiring the floor cable. A floor cable 2 laid under a carpet 1 connects a terminal box 3 and a telephone 4.
This is a connection between the two.

However, in the above wiring example, the floor cable 2 is covered with the carpet 1, and when branching the floor cable 2, the floor cable 2 is folded inside out.
There is a problem in that the arrangement of the core wires becomes confusing, making it difficult to identify each core wire when connecting to the telephone set 4.

This invention was proposed in consideration of the above-mentioned circumstances, and its purpose is to facilitate the identification of the core wires constituting the floor cables laid under the carpet.

This invention will be explained below based on an embodiment shown in FIGS. 2 to 5.

The floor cable of the present invention has two pairs of core wires 5
A, 5B and 5C, 5D are arranged horizontally in a row with a drain cable 6 between the pairs, and are integrally coated with an insulation coating 7 to form flat cables 8A to 8F.
These flat cables 8A to 8F
are arranged parallel to each other on the same plane, and are connected integrally by sandwiching them between conductive tapes 9A and 9B such as aluminum tape. The conductive tapes 9A and 9B are connected to the flat cable 8.
A, 8F are bonded to the surfaces of the flat cables 8A to 8F to form a conductive coating layer 10 that covers the surfaces of the flat cables 8A to 8F and shield each other, and are bonded to each other between the flat cables 8A to 8F,
A connecting piece 11 is formed to connect each of the flat cables 8A to 8F to each other. Also, this connecting piece 1
1 is formed with perforations 11a for separating the flat cables 8A to 8F from each other.

Further, on the surfaces of the conductive tapes 9A and 9B, a large number of colored parts 12 are formed at intervals in the length direction of the floor cables for mutually identifying each of the flat cables 8A to 8F. The colored portion 12 is formed in such a shape that the width dimension (dimension in the length direction of the floor cable) gradually narrows from one side of the floor cable to the other side. Further, in order to easily identify the front and back sides of the floor cable, the colored part 12 is provided on the front side and the back side (i.e., the conductive tapes 9A and 9B).
) are colored in different colors.

In addition, the core electric wires 5A to 5D and the drain cable 6 included in each flat cable 8A to 8F are
They are covered with covering materials 13 of mutually different colors. Furthermore, these core electric wires 5A to 5D and drain cable 6 are connected to which flat cable 8.
In order to identify whether the cable belongs to A to 8F, for example, in Fig. 3, each flat cable 8A to 8F
Core wires 5A and 5A placed on the right side of each
... are coated with a coating material 13 of a different color for each flat cable. That is, to give an example, the core wires 5B, 5C, 5D and the drain cable 6 of each of the flat cables 8A to 8F are coated with coating materials 13 colored white, brown, gray, and black, respectively, and each flat cable is The core electric wires 5A, 5A, 8A to 8F are coated with a covering material 13 colored in blue, yellow, green, red, purple, etc.

The floor cable is, for example, a fifth cable.
As shown in the figure, colored portions 12 are provided in advance on the conductive tapes 9A and 9B, and an appropriate number of flat cables 8A are formed using the conductive tapes 9A and 9B.
It can be easily manufactured by sandwiching ~8F. Further, the colored portions 12 are formed on the surfaces of the conductive tapes 9A, 9B by, for example, covering the surfaces of the conductive tapes 9A, 9B with a transparent film on which the colored portions 12 are printed on the inside. There is.

In the above-mentioned embodiment, the flat cable is composed of two pairs of core electric wires, but the flat cable may be composed of one pair or many pairs of core electric wires. Further, the shape of the colored portion of the conductive tape is not limited to the one described in the above embodiment, but the shape of the colored portion may be different for each flat cable. Furthermore, if each flat cable is configured with the same color code and can be identified only by the difference in the shape of the colored part,
Manufacturing costs can be reduced.

As is clear from the above description, the present invention provides a colored part on the front and back sides of the floor cable with different dimensions for each flat cable constituting the floor cable, and separates the colored part from the front side of the floor cable. It is characterized by having different colors on the back side, and when the floor cable is laid under a carpet, etc., and branched while being folded back, the difference in the shape of the colored part can be determined. Therefore, the flat cables can be easily identified from each other, and by determining the difference in color of the colored parts, the front and back sides of the floor cables after branching can be determined, and each flat cable This has the effect that the core wires constituting the core wires can be easily identified from each other. In addition, since the structure is such that multiple flat cables are sandwiched from above and below with conductive tape, it is possible to form colored sections in advance in a flat state before pasting these tapes together. Then,
It can be manufactured without using a special curved surface printing method using an uneven roller or the like. Further, by using a conductive tape provided with a colored portion in advance, the cable can be manufactured without making any changes to the cable manufacturing equipment. Furthermore, in manufacturing equipment in which a flat cable is held between conductive tapes, it is possible to easily create various color combinations by appropriately selecting the color of the conductive tapes set in the equipment. This has the effect of making it possible to obtain a cable.

[Brief explanation of the drawing]

Fig. 1 is an explanatory diagram of an example of floor cable wiring, Figs. 2 to 5 show an embodiment of this invention, Fig. 2 is a partially cutaway perspective view of the floor cable, and Fig. 3 is a cross-sectional view, Figure 4 is a plan view, and Figure 5 is a cross-sectional view.
The figure is an explanatory diagram of a conductive tape. 5A to 5D... Core electric wire, 6... Drain cable, 7... Insulating coating, 8A to 8F... Flat cable, 9A, 9B... Conductive tape, 10...
Covering layer, 11... Connection piece, 12... Colored part, 13
...covering material.

Claims (1)

[Scope of utility model registration request] The tape-shaped flat cables 8A to 8F are arranged parallel to each other with their planes aligned on the same plane and spaced apart from each other,
In a floor cable formed by integrally covering these with a covering layer 10, the covering layer sandwiches these from above and below in the part where the floor cable is present, and is directly overlapped in the part between the flat cables. Along with this, there is a colored part 1 on the surface.
Upper and lower conductive tapes 9 formed with 2
The colored parts on the surface of these conductive tapes have different shapes for each flat cable, and the colored part of one conductive tape is different from the colored part of the other conductive tape. A floor cable characterized by its color.