JPS6345792Y2 - - Google Patents

Description

[Detailed explanation of the invention] This invention uses two-strand or three-strand twists (including flat twists).
This invention relates to a wire tip fixing device used at a DV wire tie-down point.

Conventionally, this type of electric wire tip fixing device has been used to fix overhead wires (wires) at approximately equal positions on both sides, as shown in Figure 1.
In addition to providing upper and lower two-stage cut hook grooves 2 and 3 for alternately distributing and inserting wires 1 and 1, wire fixing holes 4 and 4 are provided in the upper part, and a mounting bracket 5 is provided in the upper end part.
A mounting hole 6 was formed for mounting.

The conventional electric wire tip fixing device configured as described above has the following drawbacks.

(1) One side of the overhead wire is hooked to a building, etc., and while pulling the other side, the overhead line is engaged with the cut-out hooking groove of the fixing device, so the longer the overhead wire, the more
The weight of the overhead wire makes it difficult and laborious to engage the fixing device.

(2) After the overhead wire is engaged with the cut hook groove of the fixing device, it must be fixed with the binding wire, which requires a lot of work.

(3) In the case of 3 wires, it is necessary to pull the overhead wire, determine the attachment position of the overhead wire to the fixing device, and wrap the FCO tape around that position.

(4) When attaching an overhead wire to a fixing device, bend the overhead wire approximately 90 degrees at the installation position, and pull the overhead wire to engage it in the cut hook groove. It was difficult to engage the device to a position where it could be locked without tension.

SUMMARY OF THE INVENTION In view of the above-mentioned conventional drawbacks, the present invention aims to provide an electric wire tip fixing device that can easily fix an overhead wire to a fixing device without using FCO tape or binding wire.

Hereinafter, the present invention will be explained in detail with reference to an embodiment shown in FIGS. 2 to 7.

In the embodiments shown in FIGS. 2 to 7, reference numeral 11 denotes a fixing device body made of an insulating material such as synthetic resin or porcelain for fixing the tip of the electric wire. 12
is a through hole formed approximately at the center of the fixing device main body 11 through which at least two or more electric wires (overhead wires) can pass. Reference numerals 13A, 13B, and 13C denote at least two or more wires capable of locking the end-side electric wires passing through the through-hole 12 formed on the outer periphery of the fixing device main body 11 without crossing or moving, respectively, in this embodiment. Here are the three wire locking grooves. These wire locking grooves 13A, 13B, 1
3C is formed in a substantially S-shape, and corner portions 13a, 1
A tapered portion 14 and a locking piece 15 are formed at both ends of the wires 3b and 13c, respectively, to facilitate the locking operation of the electric wire and to prevent the electric wire from coming off. Further, the tips of the electric wire locking grooves 13A, 13B, and 13C are formed in the recesses 16 and 1 formed at the end of the fixing device main body 11.
6 and 16, and engagement grooves 17, 17, and 17 are formed at the rear end of the fixing device main body 11 so that the electric wires can protrude in a radial direction from the rear end of the fixing device main body 11.

18, 18 are engaging parts formed on the fixed side outer periphery of the fixing device main body 11, and these engaging parts 18, 18
is composed of recesses 20, 20 having circular recesses 19, 19 that can be inserted from the side, and insertion grooves 21, 21 communicating with the bottoms of these recesses 20, 20. Reference numeral 22 denotes a mounting bracket, and the mounting bracket 22 includes a main body 23 formed by bending a wire into a U-shape, and an engaging member that engages with the engaging portions 18, 18 formed by bending both ends of the main body 23 into a ring shape. It is composed of joining pieces 24, 24.

In the above structure, one end of the overhead wire 25, for example, made of three strands, is inserted into the through hole 12 of the fixing device main body 11, and each end of the overhead wire 25 passes through the predetermined distance at an angle of approximately 90°. Bending and fixing device main body 11
into the recesses 16, 16, 16 at the ends of. Thereafter, the overhead wires 25 are bent and inserted into the wire locking grooves 13A, 13B, and 13C, respectively, and locked therein. After that, the engagement pieces 24, 2 of the mounting bracket 22
4 are engaged with the engaging portions 18, 18 of the fixing device main body 11, and the end of the mounting bracket 22 is hooked onto a hook 26 attached to a building or the like.

Next, climb the telephone pole, pull up the overhead wire 25, and pull it to determine the length of the overhead wire 25 and cut it. After that, attach the mounting bracket 2 to the fixing device main body 11 in advance.
2 is attached, and the mounting fitting 22 is engaged with the hook 28 attached to the utility pole 27. Next, overhead line 2
5 through the through hole 12 of the fixing device main body 11 and pull it, and when the tension is tight, bend it about 90 degrees and engage it in the recess 16 at the end. By bending the overhead wire 25 by about 90 degrees, the overhead wire 25
It can be held in a taut state without being pulled. Next, after bending all the overhead wires 25, 25 by about 90 degrees, the overhead wires 25, 25, 25 are respectively locked in the wire locking grooves 13A, 13B, 13C. At this time, the overhead wires 25, 25, 25 are connected to the wire locking grooves 13A, 13 without rotating the fixing device main body 11.
B, 13C can be locked. Note that after the overhead wire 25 is attached to the fixing device main body 11, the attachment fittings 22 may be attached and attached to the utility pole 27.

Further, in the above embodiment, three wire locking grooves 13A, 13B, and 13C are formed on the outer periphery of the fixing device main body 11, but the present invention is not limited to this. It may be a formed one. Furthermore, the wire locking groove is Z-shaped or M-shaped.
It may have any shape, such as a character shape, as long as it can hold the electric wire.

As is clear from the above description, the present invention has the following effects.

(1) Insert the end of the overhead wire into the through hole of the fixing device body, pull it, and when the tension is tight, bend the overhead wire approximately 90 degrees. It can be done without tension, and the work is very easy.

(2) Overhead lines can be bound without using FCO tape or binding wire, making the work easier and cheaper.

(3) It is not necessary to rotate the fixing device body 180 degrees to bind the overhead wire as in the conventional method, so the wire can be easily locked in the wire locking groove.

(4) By forming three wire locking grooves on the outer periphery of the fixing device main body, it can be used for three-strand or two-strand binding.

(5) As mentioned above, overhead wires can be installed easily and easily, making work in dangerous locations easier and preventing accidents.

(6) Compared to conventional overhead wire binding work, the work can be completed in about one third of the time.

[Brief explanation of the drawing]

Fig. 1 is an explanatory diagram showing one conventional embodiment, Fig. 2 is a side view showing one embodiment of the present invention, and Fig. 3 is a second
4 and 5 are views showing the front end and rear end of the fixation device body, and FIG. 6 is A-A in FIG. 2.
A sectional view taken along the line, and FIG. 7 is an explanatory view showing the attached state. 11...Fixing device main body, 12...Through hole, 13
A, 13B, 13C...Wire locking groove, 13a, 1
3b, 13c...corner part, 14...tapered part, 15...locking piece, 16...recess, 17...engaging groove, 18...engaging part, 19...circular recess, 20
... recess, 21 ... insertion groove, 22 ... mounting bracket, 23 ... main body, 24 ... engagement piece, 25 ... overhead line, 26 ... hook, 27 ... utility pole, 28 ...
Hutsuku.

Claims (1)

[Claims for Utility Model Registration] 1. A fixing device body made of an insulating material and having a through hole approximately in the center through which an electric wire can pass;
At least two or more electric wire locking grooves are provided on the outer periphery of the fixing device main body, and the electric wires on the end side passing through the through holes of the fixing device main body can be respectively locked without crossing each other and not moving. A device for fixing the tip end of an electric wire, characterized in that it is attached to an engaging portion formed on the outer periphery of the fixed side of the device main body, and includes a fitting for attaching to a telephone pole, etc., which is removably attached. 2. The electric wire tip fixing device according to claim 1, wherein the fixing device main body is made of synthetic resin or porcelain. 3. The electric wire tip fixing device according to claim 1 or 2, wherein three electric wire locking grooves are formed on the outer periphery of the fixing device main body. 4. The electric wire tip fixing device according to any one of claims 1 to 3, wherein the electric wire locking groove is formed in a substantially S-shape. 5 Utility model registration characterized in that the engaging part formed on the fixing device main body is composed of a recess that can be inserted from the side, and an insertion groove that communicates with the bottom of the recess and prevents the attachment fitting from coming off. An electric wire tip fixing device according to any one of claims 1 to 4. 6. Utility model registration claim 1, characterized in that the mounting bracket is formed by bending a wire into a substantially U-shape and bending both ends into a ring shape to form an engaging piece that engages with the engaging portion. The electric wire tip fixing device according to any one of items 5 to 6.