JP3034771U - Hanger material for overhead wire construction - Google Patents

Abstract

(57) [Summary] [Constitution] Wire diameter is 3 to 10 mm and tensile strength is 3000 N /
A linear material 1 of mm ² or more and a specific gravity of 1.0 to 1.7 and generally made of synthetic resin is entwined around a supporting wire 2 such as a messenger wire and an overhead wire 3 such as a cable. [Effect] It is easy to perform the overhead wire work over a distance such as a messenger wire or a cable that is well compatible with a distance of several tens of meters such as between electric poles.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a hanger material for overhead line work, and an object thereof is to provide a hanger material for overhead line work capable of providing sufficient durability and stable overhead wire support.

[0002]

[Prior art]

 Aerial lines are basically used for overhead lines such as power transmission lines or communication cables.In Japan, there is no choice but to use an aerial overhead line system that uses utility poles, and in particular, a utility pole is set for each distribution line. It is well known that it is common to make a plurality of overhead lines using existing utility poles without doing so.

That is, it is general that a messenger wire such as a messenger wire is stretched between the above-mentioned electric poles, and the cable and the like are attached along the messenger wire. The messenger wire and the cable are connected by a hanger material. It has been common practice to support the weight of the cable on the wire with hanger materials that are supported and provided at regular intervals.

[0004] It should be noted that after mounting the pole fittings on a structure such as a utility pole, the messenger wire is stretched, and then the wire rope hanger is suspended by a hoisting vehicle or the end of the resin-coated steel wire is insulated. It has been practiced to sequentially attach capped spiral hangers to mount a wire rope, and then lash the target cable around the messenger wire.

[0005]

[Problems to be solved by the device]

 In any case, the conventional overhead wire system as described above requires a large number of man-hours and requires a considerable amount of time because it requires high-altitude work. In other words, it can be said that the spiral hanger or lashing winding is a useful method as described above, but it requires work such as turning operation in sequence over the entire length of the messenger wire and cable. Has the disadvantage that it is extremely large, and moreover, it is necessary to use metal parts and it is not possible to obtain sufficient durability under outdoor use conditions.

It is also possible to use a strip of metal wire coated with resin to prevent corrosion as a hanger material for this overhead wire work, and it is adopted in some parts, but the manufacturing process is duplicated and the hanger material is also used. However, it does not always fit well with cables, etc., so there is the disadvantage that the suspending action as a hanger material cannot be obtained accurately.

[0007]

[Means for Solving the Problems]

 The present invention was devised after repeated studies to solve the above-mentioned disadvantages of the prior art, and by using a specific synthetic resin linear material, the overhead wire construction as described above can be performed easily and appropriately. It has been successfully implemented as follows.

(1) A linear material having a wire diameter of 3 to 10 mm, a tensile strength of 3000 N / mm ² or more, a specific gravity of 1.0 to 1.7, and a synthetic resin as a whole. There is a hanger material for overhead wire construction characterized in that it is entangled over a supporting wire such as a messenger wire and an overhead wire such as a cable.

(2) The hanger material for overhead line work according to the item (1), wherein a continuous spiral ridge pattern is formed on the peripheral surface of the synthetic resin linear material.

[0010]

[Embodiment of the invention]

 A specific embodiment of the present invention as described above will be described with reference to the accompanying drawings. In the present invention, the wire diameter is 3 to 10 mm, the tensile strength is 350 kg or more, and the specific gravity is 1. We propose a wire rod 1 with a cross section of synthetic resin made of synthetic resin as a hanger material for overhead wire construction. A center hole is formed in the center of the wire rod 1 to reduce weight. Can be planned.

Further, it is preferable to form a continuous spiral ridge pattern 11 on the peripheral surface of the synthetic resin linear material as described above, and in the illustrated one, a rope-shaped ridge pattern 11 is formed. Such a ridge pattern 11 is easily formed as a ridge by forming a recess corresponding to the ridge pattern in the nozzle for extrusion molding, and after cooling this once, it is reheated and twisted. It is easily formed into a spiral shape by giving.

A mode in which the hanger material of the present invention obtained as described above is used for the purpose of hanger of an overhead line such as a cable is as shown in the accompanying drawings, and is shown between supporting parts such as utility poles. A messenger overhead wire 2 that is stretched and is suspended in a spiral shape along the length of the messenger overhead wire 2 under the hanger material 1 of the present invention. Are inserted and supported to form a predetermined catenary state.

That is, the hanger material 1 whose cross section is generally synthetic resin is well adapted to both the messenger overhead wire 2 and the overhead wire 3 such as a cable as described above, and is effective in the ridge pattern 11. It is possible to form a stop relationship and prevent movement between them, thereby forming and securing a preferable and stable hanger overhead line state.

As described above, the wire diameter is 3 to 10 mm, the specific gravity is 1.0 to 1.7, and the tensile strength is 3000 N / mm ² or more. The characteristics are polyethylene terephthalate, polyphenylene oxide, polysulfone, polycarbonate, It can be appropriately obtained with a resin such as sialyl phthalate. For example, a modified cross section synthetic resin filament having three ridges obtained by extruding from a nozzle with polyethylene terephthalate resin is once cooled and then heated. A spiral continuous ridge formed by twisting while twisting can be easily obtained with a diameter of about 4.8 to 7 mm and a tensile strength of 3500 to 7,000 N / mm ² or more, and the specific gravity of this product. Is about 1.3.

[0015]

[Effect of the invention]

 In the case of the present invention as described above, it is easily manufactured by simple extrusion molding of synthetic resin, burned material, etc., and it is well familiar with overhead wires such as messenger wires and cables, and reaches several tens of meters such as between electric poles. Since it is possible to easily and accurately carry out the overhead line work over such a distance, this is a device with a great effect.

[Brief description of the drawings]

FIG. 1 is a view showing an embodiment of the present invention and a usage state thereof as an overhead wire hanger material.

[Explanation of symbols]

 1 Wire material as a hanger material according to the present invention 2 Support wire like a messenger wire 3 Overhanging wire to be hung like a cable 11 Ridge pattern

Claims (2)

[Utility model registration claims] 1. A linear material having a wire diameter of 3 to 10 mm, a tensile strength of 3000 N / mm ² or more, a specific gravity of 1.0 to 1.7, and a synthetic resin as a whole. A hanger material for overhead wire construction characterized in that it is entangled over a supporting wire such as a messenger wire and an overhead wire such as a cable. 2. A continuous spiral ridge pattern is formed on the peripheral surface of a synthetic resin linear material.
Hanger material for overhead line work described in.