JP3434018B2 - Wire winding bind - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric wire winding bind for tightly supporting an overhead wire on an insulator, and more particularly to an electric wire winding bind in which a portion for engaging an insulator is prevented from being broken.

[0002]

2. Description of the Related Art An example of a conventional electric wire winding bind is shown in FIG.
Shown in. In FIG. 3, in the wire winding bind 10, a semi-circular arc portion 10a for engaging an insulator that can be wound around the neck portion of the insulator 12 is bent and formed at the center of a long metal wire having elasticity and high tension in the longitudinal direction, A long spiral portion 1 for winding an electric wire having an inner diameter smaller than the wire diameter of the overhead electric wire 14 at both ends thereof.
0b and 10b are bent and formed. Then, with respect to the overhead wire 14 attached to the neck portion of the insulator 12, the semi-circular arc portion 10a is hung on the neck portion of the insulator 12 on the side opposite to the side where the overhead wire 14 is attached, and the long spiral portions 10b and 10b at both ends are provided. Is wound around the overhead wire 14.

Due to the elasticity of the metal wire, the long spiral portion 10b,
The overhead wire 14 is gripped by 10b, and the overhead wire 14 is tightly supported by the insulator 12.

[0004]

By the way, in the conventional electric wire winding bind shown in FIG. 3, the semi-circular arc portion 10a is formed.
It is easy to cause a problem that the wire breaks at a place near the long spiral portions 10b, 10b.

This is because the overhead wire 14 constantly vibrates under the influence of wind or the like, while the insulator 12 is appropriately fixed to a utility pole or a steel tower, and the insulator 12 and the overhead wire 14 are fixed.
The force to move relative to the electric wire winding bind 10
In particular, the stress is likely to be concentrated particularly on a portion of the semi-circular arc portion 10a near the long spiral portion 10b, and the wire is disconnected due to the repeated stress for a long period of time.

The present invention has been made in view of the circumstances of the conventional electric wire winding bind, and it is an object of the present invention to provide an electric wire winding bind which is excellent in durability and does not cause disconnection.

[0007]

In order to achieve such an object, the electric wire winding bind of the present invention is arranged such that another metal wire shorter than this is arranged in parallel at the center of the long metal wire in the longitudinal direction. Then, an integral multiple metal wire portion is formed in the central portion, and a semi-circular arc portion for insulator engagement is bent and formed in the central portion of the multiple metal wire portion, and the long metal wire is used for winding the wire at both ends thereof. And a short spiral portion for winding the electric wire is formed in parallel with the long spiral portion by the other short metal wire.

Further, the metal wire may be coated with a synthetic resin coating material in the multiple metal wire portion.

Further, a semi-circular arc portion for insulator engagement is bent and formed at the center of the long metal wire in the longitudinal direction, and long spiral portions for winding electric wires are bent and formed at both ends thereof, which is shorter than the long metal wire. Another metal wire is formed by bending a semi-circular arc portion for engaging an insulator in the central portion in the longitudinal direction and bending and forming a short spiral portion for winding a wire in parallel with the long spiral portion at both ends thereof. It can also be composed of two long and short metal wires.

[0010]

[Operation] Since a semi-circular arc portion for insulator engagement is bent and formed in the center of the multiple metal wire portion, and a long spiral portion and a short spiral portion for winding electric wires are bent and formed on both end sides of the semi-circular arc portion, The portion near the spiral portion of the semi-circular arc portion where stress is likely to be concentrated and easily breaks is formed by the multiple metal wire, and the strength is strong accordingly. Since it is made of multiple metal wires, it is more flexible and easier to absorb vibration than one made of one thick metal wire having the same cross-sectional area.
In addition, since it is integrated, workability is good, and only a necessary portion is made of the multiple metal wire, and the weight can be reduced as compared with the case where the whole is made of the multiple metal wire.

Further, when the metal wire is coated with the synthetic resin coating material in the multiple metal wire portion, the coating material absorbs the vibration, and the coating material is interposed between the insulator and the semi-circular arc portion abutting on the insulator. Therefore, it is possible to prevent wear of the metal wire in the semi-circular portion.

Further, if the wire is made up of a long metal wire having a semi-circular arc portion and a long spiral portion and a short metal wire having a semi-circular arc portion and a short spiral portion, a double breakage point is likely to occur. Hard to break. In addition, the weight can be reduced as compared with the case of using two long metal wires. Furthermore, the existing binding support structure is reinforced by adding one short metal wire that composes the present invention to the existing wire winding bind made of one long metal wire. You can

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of the present invention will be described below with reference to FIG. FIG. 1 is a view showing an embodiment of an electric wire winding bind of the present invention, in which (a) is a view from above with a part of an insulator cut away, and (b) is an arrow A in (a). It is a view, (c)
FIG. 4 is various sectional views of the multi-metal wire.

In FIG. 1, an electric wire winding bind 20 of the present invention is shorter than a long metal wire 22 made of hard aluminum, hard copper, hard steel wire or the like, which has elasticity and high tension, in the central portion in the longitudinal direction. Another metal wire 24 made of hard aluminum, hard copper, hard steel wire or the like and having elasticity and high tension is arranged and fixed in parallel, and a multiple metal wire portion 26 is formed in the central portion. As shown in FIG. 1 (c), the multiple metal wire portion 26 is formed by coating two metal wires 22 and 24 with covering materials 28 and 28 such as synthetic resin, and the covering wires are parallel to each other. It is fixed with adhesive. Alternatively, the two metal wires 22 and 24 may be arranged in parallel in a state of being slightly separated or in contact with each other, and the metal wires 22 and 24 may be entirely covered with the covering material 28. Furthermore, the number of metal wires to be multiplexed is not limited to two, and may be three or more if necessary. Further, in the central portion of the multi-metal wire portion 26, semi-circular arc portions 22a, 24a for engaging the insulator that can be wound around the neck portion of the insulator 12 are integrally bent and formed, and both ends thereof are smaller than the wire diameter of the overhead wire 14. The spiral portion for winding the electric wire, which has an inner diameter, is bent and formed. Here, a long spiral portion 22b is bent and formed on the long metal wire 22, and a short spiral portion 24b is bent and formed on the short metal wire 24. The long spiral portion 22b and the short spiral portion 24b are both integral and parallel.

In the electric wire winding bind 20 having such a structure, the semi-circular arc portions 22a and 24a are wound around the neck portion of the insulator 12 with respect to the overhead wire 14 attached to the neck portion of the insulator 12, similarly to the conventional one. , Long spiral part 2 on both ends
2b and 22b and short spiral portions 24b and 24b are both wound around the overhead wire 14, and the work of binding the overhead wire 14 to the insulator 12 is completed.

Although two metal wires 22 and 24 are used,
It is integrated, and work similar to the conventional one is sufficient. Then, the semi-circular arc portions 22a and 24a and the spiral portion 22
The connecting portion of b and 24b is composed of two metal wires, and is stronger than that of one. And it is more flexible than one metal wire having the cross-sectional area of these two metal wires. Moreover, in the multiple metal wire portion 26, the metal wires 22 and 24 are covered with the covering material 28, the vibration of the overhead wire 14 is absorbed by the covering material 28, and the vibration propagated to the metal wires 22 and 24 is attenuated. . Further, the covering material 28 is interposed between the metal wires 22 and 24 and the insulator 12 and the overhead wire 14, and the metal wires 22 and 24 are prevented from being worn. Due to these factors, the electric wire winding bind 20 of the present invention has the same workability as that of the conventional one, but has excellent durability. It should be noted that, as compared with one formed by two long metal wires, one metal wire can be made lighter by the shorter amount, and the work can be performed easily by the lighter amount.

FIG. 2 shows another embodiment of the electric wire winding bind of the present invention, which is a view of the insulator seen from above with a part thereof cut away.

In an electric wire winding bind 30 of another embodiment shown in FIG. 2, a long metal wire 3 having elasticity and high tension is used.
2 and a metal wire 34 shorter than this. Then, these two metal wires 32 and 34 are separately bent without being integrated. A semi-circular arc portion 32a for engaging an insulator, which can be wound around the neck portion of the insulator 12, is bent and formed in the central portion of the long metal wire 32 in the longitudinal direction, and an electric wire winding having an inner diameter smaller than the diameter of the overhead electric wire 14 at both ends thereof. Long spiral parts 32b, 32b for attachment are formed by bending. The long bent metal wire 32 alone is the same as the conventional wire winding bind 10.

Further, a semi-circular arc portion 34a for engaging an insulator, which can be wound around the neck portion of the insulator 12, is bent and formed in the central portion in the longitudinal direction of the short metal wire 34, and the wire diameter of the overhead wire 14 is smaller than both ends thereof. The short spiral portions 34b, 34b for winding the electric wire, which have an inner diameter, are bent and formed.

When wound around the overhead wire 14,
Long spiral parts 32b, 32b and short spiral parts 34b, 34b
So that they are parallel, the spirals have the same pitch, but are bent and formed so that the short spirals 34b, 34b are arranged between the pitches of the long spirals 32b, 32b.
Therefore, the semi-circular portions 32a, 34a to the spiral portions 32b, 3
The positions of the first spiral portion reaching 2b, 34b, 34b are formed such that the long metal wire 32 and the short metal wire 34 are slightly displaced in the longitudinal direction.

In such a structure, first, the long metal wire 32
The semi-circular arc portion 32a is wound around the neck portion of the insulator 12, and the long spiral portions 32b and 32b on both end sides are further wound around the overhead wire 14. Next, the semi-circular arc portion 34a of the short metal wire 34
Is a semi-circular arc portion 32a of the long metal wire 32 on the neck of the insulator 12.
The spiral parts 34b and 34b are wound so as to be parallel to each other, and the short spiral parts 34b and 34b on both end sides are replaced by long spiral parts 32b and 32b.
And is wound around the overhead wire 14 while being positioned between the pitches.
First, the short metal wire 34 is connected to the insulator 12 and the overhead wire 14.
It goes without saying that the long metal wire 32 may be attached to the first metal wire 32 and then to the second metal wire 32. And two long and short metal wires 32, 34
However, the insulator 12 and the overhead wire 14 are attached together, and the work of binding the overhead wire 14 to the insulator 12 is completed.

In the portion 36 where the long metal wire 32 and the short metal wire 34 are doubled, the metal wires are arranged in double and the strength is stronger than that of one wire and the cross-sectional area of two wires is used. It is more flexible than the single metal wire it has. Therefore, the vibration of the overhead wire 14 can be well absorbed, and the semi-circular portions 32a, 34a and the spiral portions 32b, 32b, 34 can be absorbed.
The connecting portion of b and 34b is not broken, and the durability is excellent.

In another embodiment shown in FIG. 2, the long spiral portions 32b and 32b of the long metal wire 32 and the short spiral portions 34b and 34b of the short metal wire 34 have the same pitch. , Because the position in the longitudinal direction is shifted in advance,
There is no overlap. However, the conventional 2 of the same shape
When the electric wire winding binds 10 and 10 are attached to the insulator 12 and the overhead electric wire 14, the metal wires may partially overlap with each other, which makes the work difficult. If the metal wires are overlapped with each other, the metal wires are rubbed against each other and worn, and the wires are easily broken. Therefore, in the electric wire winding bind 30 of the present invention, the metal wires do not overlap with each other, and the durability is correspondingly excellent.

Further, the conventional metal wire winding bind 10 similar to the long metal wire 32 may be already mounted, but the short metal wire 34 forming a part of the present invention may be mounted. It is suitable for reinforcing the binding support structure of the overhead wire 14 to the existing insulator 12.

In the above embodiment, the long metal wire 22,
32 and the short metal wires 24 and 34 are each one, but either one or both may be composed of a plurality of metal wires.

[0026]

As described above, since the electric wire winding bind of the present invention is constructed, the following special effects are exhibited.

In the electric wire winding bind according to the first aspect of the present invention, the portion which was easily broken in the past due to the repeated vibration of the overhead wire is made of a multi-layer metal wire, which is strong in strength and has high flexibility and vibration. Is easy to absorb. Therefore, the concentration of stress is small and the durability is excellent. Moreover, since it is integrated, the work of binding the aerial wire to the insulator is completed and the workability is good by the same work as the conventional one. Further, the electric wire winding bind of the present invention does not consist of multiple metal wires in the entire longitudinal direction, but uses multiple metal wires only in the necessary portions, and can be made lighter by that amount. Therefore, since the mounting work is performed at a high place, the weight saving of the parts is convenient for the work and the safety.

Further, in the electric wire winding bind according to the present invention, since the portion of the multiple metal wire is covered with the covering material, the covering material absorbs and attenuates the vibration, and the vibration is transmitted to the metal wire. Is reduced and durability is improved accordingly. Further, since the covering material is interposed between the insulator and the overhead wire and the metal wire, the metal wire is not worn, and the metal wire is not easily broken due to the wear.

Further, in the electric wire winding bind according to the third aspect of the invention, like the first aspect of the invention, the portion where the wire is easily broken is double and the wire is hard to be broken. Furthermore, it is also possible to additionally attach a short metal wire to the binding support structure of the overhead wire to the existing insulator to reinforce it.

[Brief description of drawings]

FIG. 1 is a view showing an embodiment of an electric wire winding bind of the present invention, in which (a) is a view of a part of an insulator as seen from above and (b) is an arrow A in (a). It is a perspective view, and (c) is various sectional views of a multiple metal wire.

FIG. 2 is a view in which a part of an insulator of another embodiment of the electric wire winding bind of the invention is cut out and viewed from above.

FIG. 3 is a view in which a part of an insulator of an example of a conventional electric wire winding bind is cut away and viewed from above.

[Explanation of symbols]

10, 20, 30 wire winding binding 10a, 22a, 24a, 32a, 34a Half arc part 10b, 22b, 32b Long spiral part 12 insulator 14 overhead wire 22,32 long metal wire 24,34 short metal wires 24b, 34b Short spiral part 26 Multiple metal wire part 36 Double part

Continuation of the front page (56) References Actual opening Sho 55-180217 (JP, U) Actual opening Sho 62-74413 (JP, U) Actual public Sho 49-42315 (JP, Y1) Actual public Sho 43-25878 (JP , Y1) (58) Fields investigated (Int.Cl. ⁷ , DB name) H01B 17/22 H02G 1/02

Claims (3)

(57) [Claims] 1. A long metal wire is provided with another metal wire, which is shorter than the long metal wire, arranged in parallel at the central portion in the longitudinal direction and fixed to form an integral multiple metal wire portion. A semi-circular arc portion for insulator engagement is formed by bending in the central part of the insulator, and a long spiral portion for winding an electric wire is formed by bending the long metal wire at both ends thereof, and the short spiral portion is formed by another short metal wire. An electric wire winding bind characterized in that a short spiral portion for winding an electric wire is formed by bending in parallel. 2. The electric wire winding bind according to claim 1, wherein the metal wire is covered with a synthetic resin coating material in the multiple metal wire portion. 3. A shorter metal wire is formed by bending a semi-circular arc portion for engaging an insulator at a central portion in the longitudinal direction of a long metal wire and bending long spiral portions for winding an electric wire at both ends thereof. Another metal wire is formed by bending a semi-circular arc portion for engaging an insulator in the central portion in the longitudinal direction and bending and forming a short spiral portion for winding a wire in parallel with the long spiral portion at both ends thereof. An electric wire winding bind characterized in that it is composed of two long and short metal wires.