JPH0654618B2 - Method of fixing electric wire to insulator and its fixture - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a method and a fixture for fixing an electric wire to an insulator in an overhead wire or a cubicle.

(Prior Art) Conventionally, as a method of fixing an electric wire to an insulator, there have been a clamp method and a binding method as shown in FIG.

In the binding method, the electric wire 6 is fitted into the electric wire insertion groove 11b formed on the upper surface of the head 11a of the insulator book 11, and the bind wire 1
2 is wound around the neck portion 11c of the insulator body 11 to fix the electric wire 6.

(Problems to be Solved by the Invention) However, in the electric wire fixing method described above, for example, in the binding method, if the binding range of the binding wire 12 is wide, it will be a hindrance when mounting a branch wire, a horn, etc. near the insulator body 11. In addition to the clamp method, the mounting work is troublesome, and in particular, there is a problem that it cannot be easily performed in a cubicle where there are many space restrictions.

Configuration of the Invention (Means for Solving the Problems) In order to solve the above problems, the fixing method of the present invention inserts the electric wire 6 into the groove 2d of the head 2c of the support insulator 2, and then the electric wire 6
At a higher position, the support wheel 7a of the fixture 7 is wound around the neck portion 2b of the insulator, and the clasp portions 7b provided at both ends of the support wheel 7a are engaged with both sides of the electric wire 6, and then the clasp portion 7b. The means for tightening the clasp 7b from the outside is adopted.

In order to solve the above problems, the fixture of the present invention is wound around the neck portion 2b of the support insulator 2 and has a flexible support wheel 7a.
And a semi-cylindrical holding portion 7b formed on both ends thereof for holding the electric wire 6 from both sides, and a fastening tool for fastening the holding portion 7b from the outside.

(Operation) By adopting the above-mentioned means, the present invention allows the electric wire to be fitted into the yard of the head of the support insulator, the support wheel of the fixture to be wound around the neck of the insulator, and the attachment portion of the fixture to be attached to both sides of the wire. , And the electric wires are fixed by tightening both the clasps from the outside of the clasps with a fastener.

(Embodiment) An embodiment of the present invention will be described below with reference to FIGS.

FIG. 1 shows the entire support insulator 2 which is vertically fixed to the ground-side mounting portion 1.

The base metal fitting 3 is capped and fixed to the lower end portion of the support insulator 2,
Two insertion holes 3a are formed on the lower surface of the base metal fitting 3 so as to be transparent. A bolt 4 is inserted into the insertion hole 3a of the base metal fitting 3 from the side of the mounting portion 1, and the base metal fitting 3 is fastened and fixed by a nut 5 via a washer.

The support insulator 2 is integrally formed by a neck portion 2b integrally formed on the upper portion of the fold 2a and a head portion 2c integrally formed on the upper portion by protruding in a belt shape.

Further, the wire insertion groove 2 is formed in the neck portion 2b and the head portion 2c of the support insulator 2.
d is formed and the electric wire 6 is inserted.

The electric wire 6 fitted in the electric wire insertion groove 2d of the support insulator 2.
Are fastened and fixed by a fixing tool 7 made of rubber.
As shown in FIG. 4, the fixing tool 7 includes a neck portion 2 of the supporting insulator 2.
It comprises a support wheel 7a wound around b, and semi-cylindrical clamping portions 7b for clamping the electric wire 6 at both ends thereof.

FIG. 5 shows a tightening band 8 as a tightening tool for tightening and fixing the clasped portion 7b from the outside. The tightening tool 8 has an elongated band shape and a large number of serrated grooves are formed on one surface. Obi 8
a and a locking portion 8b provided at one end of the same band 8a and for inserting and locking the same tightening band 8.

As shown in FIGS. 1 and 2, the tightening band 8 has the clasp 7b.
The belt 8 is wound around the groove 7c formed on the outer periphery of the
It is inserted into b and locked and fixed, and the clamped portion 7b is clamped and fixed to the electric wire 6 in the clamped portion 7b. The tightening band 8
After tightening, the band 8a is cut off at an excessive portion.

In the embodiment of the present invention, as compared with the conventional example, the fixture 7 is wound around the neck 2b of the support insulator 2, the clasps 7b are engaged with both sides of the electric wire 6, and the clasp 8 is used to clasp the clasp 7b. Since the electric wire 6 can be fixed to the insulator 2 only by fastening and fixing, the mounting work can be simplified. Further, since the electric wire 6 can be fixed only by the fixing member 7 and the tightening band 8, the electric wire 6 can be mounted in a narrower mounting range than the conventional example, and the branch electric wire, the horn and the like can be easily mounted in the vicinity of the supporting insulator 2.

The present invention is not limited to the above embodiment,
You may implement as follows.

(1) As shown in FIGS. 6 and 7, the inner peripheral surface of the fixture 7 may be formed into a square shape, or a protrusion may be formed in a spiral shape. In this case, the electric wire 6 is less likely to slip and the gripped state is improved.

(2) In the above embodiment, the fixture 7 and the tightening band 8 are formed separately, but they may be formed integrally.

Effects of the Invention As described in detail above, according to the present invention, the electric wire is inserted into the electric wire insertion groove of the support insulator, the support wheel of the fixture is wound around the neck portion of the support insulator, and the electric wire is clamped and tightened by the attachment portion. Since the electric wire can be easily fixed to the support insulator with only the mounting work, it can be done easily and quickly.In addition, the electric wire near the insulator is free from obstacles, and the branch electric wire, horn, etc. can be easily attached. The effect is that you can work without restrictions even in a small space.

[Brief description of drawings]

FIG. 1 is a cutaway front view showing an embodiment of the present invention, FIG. 2 is a cutaway side view of the same, FIG. 3 is a plan view of the same, FIG. 4 is a perspective view of a fixture, and FIG. A front view of the tightening band, FIGS. 6 and 7 are partial perspective views showing another example of the present invention, and FIG. 8 is a cutaway side view showing a conventional example. 2 ... Support insulator, 2b ... Neck, 2c ... Head, 2d ...
… Groove, 6 …… electric wire, 7 …… fixing tool, 7a …… supporting wheel, 7
b ... Clamping part, 8 ... Tightening band as a fastening tool.

Claims (4)

[Claims] 1. A groove (2) in a head (2c) of a support insulator (2).
The electric wire (6) is inserted into the wire (d), and the supporting wheel (7a) of the fixture (7) is wound around the neck portion (2b) of the insulator above the electric wire (6), and both ends of the supporting wheel (7a) are wound. An electric wire for an insulator characterized in that the clasping part (7b) provided on the above is engaged with both sides of the electric wire (6), and then the clasping part (7b) is tightened from the outside of the clinging part (7b). Fixing method. 2. A support ring (7a) having flexibility and wound around a neck portion (2b) of a support insulator (2), and a semi-cylinder formed on both ends thereof and holding an electric wire (6) from both sides. A fixing tool for an electric wire to an insulator, which is configured by a clasping part (7b) in a shape of a line and a fastening tool for fastening the clinging part (7b) from the outside. 3. An electric wire fixing device for an insulator according to claim 2, wherein an inner peripheral surface of the clasping portion (7b) is formed in a polygonal shape or a spiral shape. . 4. An electric wire fixing device for an insulator according to claim 2, wherein the clasping part (7b) has a groove (7c) for engaging a tightening band (8) as a tightening device. .