CABLE LAYING METHOD

An object of the present invention is to provide a cable laying method that enables efficient work. A cable laying method according to the present invention includes: preparing a structure 31 having a hook 32; fixing a cable 50 to the hook 32 attached to a surface of the cap-type structure 31 on the ground in the vicinity of a pole 11 built on the ground 10; lifting the structure 31 up to the vicinity of a tip of the pole 11; and covering the tip of the pole 11 with the structure 31. This cable laying method eliminates the need to work in high places. This cable laying method is efficient because it eliminates the need to work in high places.

TECHNICAL FIELD

The present disclosure relates to a cable laying method for laying a cable on a utility pole.

BACKGROUND ART

In order to provide a communication service, it is necessary to connect a terminal arranged in a user and a communication device installed in a communication building, by a cable (see NPL 1, for example).

FIG.1is a diagram for explaining the structure of poles and the work process that are currently in place (see NPL 2, for example). In order to wire a cable, first, a utility pole11is built on the ground10. Thereafter, a worker13rides on a vehicle14capable of working at height, and fixes hardware12(see NPL 3, for example) that grips the cable, to the utility pole11.

FIG.2is a diagram for explaining the step of wiring a cable50in the utility pole11. This step follows the step shown inFIG.1. The worker13lifts the cable50up to the height of the hardware12. Then, the cable50is fixed to the hardware12, thereby completing the wiring of the cable50. The cable is wired in this manner.

CITATION LIST

Non Patent Literature

[NPL 1] The Institute of Electronics, Communication and Information Engineers Home Page (Cable Laying Technology) https://www.ieice-hbkb.org/files/ad_base/view_pdf.html?p=/files/05/05gun_02hen_04.pdf#page=25[NPL 2] Information and Communication Engineering Association home page (Construction image collection) http://itea.or.jp/works/pdf/genba03_0810-11_access.pdf[NPL 3] Iwabuchi Co., Ltd. home page (Typical cable mounting hardware) https://www.iwabuchi.co.jp/seihin/catalog_b/detail01.html

SUMMARY OF INVENTION

Technical Problem

Although technological innovation in telecommunications equipment is progressing, technological innovation in the laying of cables is not vigorous. This is because until now it has been possible to arrange for a large number of workers. However, the number of workers has been decreasing in recent years, making it difficult to keep to the construction schedule using the same work methods as before.

To solve the problem described above, an object of the present invention is to provide a cable laying method that enables efficient work.

Solution to Problem

In order to achieve the above object, a cable laying method according to the present invention includes: a grip portion (hook) for gripping a cable, wherein, by using a structure fitted to a tip of a utility pole, the structure is lifted up in a state where the cable is gripped by the grip portion, to fix the structure to the tip of the utility pole.

Specifically, the cable laying method according to the present invention includes:fixing a cable to a hook attached to a surface of a cap-type structure on the ground in the vicinity of a pole built on the ground;lifting the structure up to the vicinity of a tip of the pole; andcovering the tip of the pole with the structure.

In addition, the cable laying method according to the present invention includes:lifting a cap-type structure up to the vicinity of a tip of a pole built on the ground;covering the tip of the pole with the structure;pulling a cable up to the vicinity of the structure; and fixing the cable to a hook attached to a surface of the structure.

This cable laying method enables efficient laying of cables to utility poles without having to work at heights. Therefore, the present invention can provide a cable laying method that enables efficient work.

The cable laying method according to the present invention is characterized in that the shape of the structure is a cylinder or a truncated cone. Work is facilitated by using the structure corresponding to the shape of the utility pole.

The cable laying method according to the present invention is characterized in that the material of the structure is transparent plastic. The work becomes easy if the structure is lightweight. In addition, if the structure is transparent, age-related deterioration of the utility pole can be visually determined, with the structure covered.

The above inventions can be combined as much as possible.

Advantageous Effects of Invention

The present invention can provide a cable laying method that enables efficient work.

DESCRIPTION OF EMBODIMENTS

Embodiments of the present invention will be described with reference to the accompanying drawings. The embodiments described below are examples of the present invention, and the present invention is not limited to the following embodiments. Note that, in the present specification and the drawings, components having the same reference numerals indicate the same components.

FIGS.3to7are diagrams for explaining a cable laying method of the present embodiment. This cable laying method includes:(FIG.3) preparing a structure31having a hook32;(FIG.4) fixing a cable50to the hook32attached to a surface of the cap-type structure31on the ground in the vicinity of a pole11built on the ground10;(FIG.5) lifting the structure31up to the vicinity of a tip of the pole11; and(FIGS.6and7) covering the tip of the pole11with the structure31.

The details of work will be described below. First, the cap-type structure31with the cable anchoring hook32is placed on the ground10(FIG.3). The cable50is fixed to the structure31(FIG.4). Then, a worker13lifts up the structure13to which the cable50is fixed, by using a lifting rod33, and moves the structure13to the tip of the utility pole11(FIG.5). Then, the tip of the utility pole11and the structure13are fitted to each other, thereby completing the work (FIGS.6and7).

As shown inFIG.8, there are two types of structures31, that is, (a) a cylindrical shape or (B) a truncated cone shape having a taper, in accordance with the shape of the tip of the utility pole11.

In the conventional cable laying method, a vehicle14for performing work at height is required as shown inFIG.1, but according to the cable laying method of the present invention, it is not necessary to perform work at height. This cable laying method is efficient because it eliminates the need to work in high places.

In the present embodiment, a method for laying cables on a plurality of utility poles will be described with reference toFIGS.9to12. First, the cap-type structure31with the cable anchoring hook32is placed on the ground10in the vicinity of each utility pole11. Cables50are fixed to these structures31(FIG.9).

As described in Embodiment 1, the structure31is put on and fitted to the tip of the first utility pole11(FIG.10). As for the next second utility pole11, the worker13lifts the structure31up to the tip of the utility pole11by using the lifting rod33(FIG.11), and fits the structure31to the tip of the utility pole11(FIG.12), as in the description of Embodiment 1. By repeating such work, cables can be laid on a plurality of utility poles.

FIGS.13to18are diagrams for explaining a cable laying method of the present embodiment. This cable laying method includes:(FIG.13) preparing the structure31having the hook32;(FIG.14) lifting the cap-type structure31up to the vicinity of the tip of the pole11built on the ground10;(FIG.15) covering the tip of the pole11with the structure31;(FIGS.16and17) pulling the cable50up to the vicinity of the structure31; and(FIG.18) fixing the cable50to the hook32attached to the surface of the structure31.

The details of work will be described below. First, the cap-type structure31with the cable anchoring hook32is placed on the ground10in the vicinity of the utility pole11(FIG.13). Then, the worker13lifts the structure31up to the tip of the utility pole11by using the lifting rod33(FIG.14). The structure31is put on and fixed to the tip of the utility pole11(FIG.15). Then, a pulley35and the cable50are prepared. The cable50is fixed to a hook36of the pulley35(FIG.16). The worker13pulls a rope37of the pulley35to lift the cable50up to the tip of the utility pole11(FIG.17). Finally, the cable50is hooked and fixed onto the hook32of the structure31, thereby completing the laying of the cable (FIG.18).

If the structure31covering the tip of the utility pole11is not transparent, the tip of the utility pole11is covered and cannot be visually observed. Since the utility pole11installed outdoors is installed for many years, the soundness of the pole must be able to be checked at any time.

Obviously, if the structure31is made of the same material as the utility pole, such as concrete, the tip of the utility pole11becomes covered and cannot be checked. Furthermore, the concrete is heavy, making it difficult for the worker13to lift up the structure by using the rod33. Therefore, it is preferred that the material of the structure31covering the tip of the utility pole11be lightweight and transparent and can be prepared in large quantities on the industrial scale. Therefore, the material of the structure31is made of transparent plastic that is widely distributed and has excellent workability.

REFERENCE SIGNS LIST