JPH08212841A - Aerial cable - Google Patents

Abstract

PURPOSE: To provide a technique in which a display mark can be easily provided on an aerial cable. CONSTITUTION: This aerial cable is formed of a cable body 1 and a support wire 2 arranged in parallel along the longitudinal direction, which are integrally covered with a resin coating material 3, and a through opening part 4 formed on the thin part of the resin coating material 3 interposed between the cable body 1 and the support wire 2. A required display mark 5 is provided on the outer surface of the resin coating material 3 for covering the support wire 2.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an aerial cable used after being installed between utility poles,
The present invention relates to a structure for attaching an indication mark showing cable characteristics and specifications.

[0002]

2. Description of the Related Art Conventionally, among aerial cables used for communication and the like, an aerial optical cable with a slack as shown in FIG. 3, that is, a cable body 1 and a support wire 2 arranged in parallel along a length direction is used. And the resin coating material 3 having a predetermined thickness, and the resin coating material 3 between the cable body 1 and the support wire 2 is formed with an opening 4 penetrating the thin portion. There is.

That is, this aerial cable is used after being installed between utility poles and the like, and the cable body 1 when the support wire 2 is pulled straight and fixed is opened in the resin coating material 3. Since 4 is formed, it is suspended and supported while meandering in the left-right direction in a plan view along the longitudinal direction. In addition,
In order to secure such a meandering state, the cable body 1
Is generally made longer than the support wire 2 in the range of about 0.2 to 0.4%.

[0004]

By the way, for the above-mentioned aerial cable, required display marks such as manufacturing date, cable characteristics and specifications, or a length mark for indicating an absolute length classification. (Not shown) may be attached. However, in this aerial cable, since the cable body 1 itself is meandering, it is very difficult to attach the display mark on the outer surface of the resin coating material 3 which covers the cable body 1, and the length is also long. Even when the absolute length of the cable body 1 is displayed by the mark, it is difficult to take the reference point, and there has been a problem in which position the display mark is attached.

The present invention is intended to provide a technique capable of easily attaching a display mark to an overhead cable.

[0006]

In order to achieve such an object, an aerial cable according to the present invention has a structure in which a cable main body and a supporting wire, which are arranged in parallel along a length direction, are integrally formed with a resin coating material. And a thin-walled portion of the resin coating material interposed between the cable body and the support wire is formed with a through-opening, and the outer surface of the resin coating material that covers the support wire is The feature is that the required display marks are attached.

[0007]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a partially cutaway perspective view showing the structure of a main part of an aerial cable, and FIG. 2 is an explanatory view showing a method for attaching a display mark. Since the structure of the main part of the aerial cable according to this embodiment is basically the same as that of the conventional example,
1 and 2, parts and portions that are the same as those in FIG. 3 are denoted by the same reference numerals.

In the aerial cable according to this embodiment, as in the conventional example, the cable body 1 and the supporting wire 2 which are arranged in parallel along the lengthwise direction of each other are integrally covered with the resin coating material 3. An opening 4 that penetrates along the thickness direction is formed in the thin portion of the resin coating material 3 that is interposed between the cable body 1 and the support wire 2. At this time, the cable body 1 is suspended and supported by the support wire 2 through the thin portion of the resin coating material 3 so as to meander in the lateral direction in plan view along the longitudinal direction thereof. On the outer surface of the resin coating material 3 covering the wire 2, the manufacturing date, cable characteristics and specifications, or
Required display marks 5 such as length marks for indicating the absolute length section are provided at predetermined positions along the longitudinal direction.

That is, the support wire 2 is to be stretched in a straight line and then to be installed between utility poles. Here, the resin that covers the support wire 2 to be installed in a straight line is used. The display mark 5 is provided on the outer surface of the covering material 3. The position where the display mark 5 is attached is not limited to the upper portion on the outer surface of the resin coating material 3, and may be the side portion.

By the way, the attachment of the display mark 5 on the outer surface of the resin coating material 3 covering the support wire 2 is carried out by the following method. In addition, when attaching the display mark 5, it is general to use a well-known printing means 7 such as an ink jet or a marking roll. Then, as shown in FIG. 2, these printing means 7 are arranged between a pair of conveying rollers 8 and 9 which nips and conveys each predetermined position along the longitudinal direction of the support line 2. For the upper part on the outer surface of the resin coating material 3 covering the support wire 2 conveyed at a predetermined speed, the printing means 7 displays the display mark 5, that is, the manufacturing date, the cable characteristics and specifications, or A required display mark 5 such as a length mark for indicating the absolute length section is printed.

[0012]

As described above, in the aerial cable according to the present invention, the required display mark is provided on the outer surface of the resin coating material that covers the linear support wire. The effect that the display mark can be added extremely easily can be obtained without causing the inconvenience as in the conventional example.

[Brief description of drawings]

FIG. 1 is a partially cutaway perspective view showing a main part structure of an overhead cable according to an embodiment.

FIG. 2 is an explanatory diagram showing a method for attaching a display mark according to the present embodiment.

FIG. 3 is a partially cutaway perspective view showing a main part structure of an overhead cable according to a conventional example.

[Explanation of symbols]

 1 Cable body 2 Support wire 3 Resin coating 4 Opening 5 Display mark

Claims (1)

[Claims] 1. A cable body (1) and a supporting wire (2) arranged in parallel along a length direction are integrally covered with a resin coating material (3), and the cable body (1) and An aerial cable having a through hole (4) formed in a thin portion of a resin coating material (3) interposed between support wires (2), the resin coating material (3) covering the support wire (2). An aerial cable characterized in that a required display mark (5) is provided on the outer surface of ().