JPH028489Y2 - - 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 distal end fixing device constructed in this manner 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, so there are many work steps.

(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.

In view of the above-mentioned drawbacks of the conventional technology, the present invention allows overhead wires to be easily fixed to a fixing device without using FCO tape or binding wires, and also provides sufficient strength for the main body of the fixing device. To obtain a device for fixing the tip end of an electric wire, which can easily and reliably attach the device body to a mounting bracket to a telephone pole or the like.

Hereinafter, the present invention will be explained in detail with reference to embodiments shown in FIGS. 2 to 8.

In the embodiments shown in FIGS. 2 to 7, 11 is the tip of an overhead wire (electric wire) formed of an insulating material such as synthetic resin or porcelain so that the head 12 has a square prism shape and the lower part 13 has a triangular prism shape. A through hole 14 is formed in the approximate center of the fixing device main body 11, through which at least two or more electric wires can pass. Further, on the outer periphery of the fixing device main body 11, there are at least two, in this embodiment three, waveform shapes that can lock the electric wires on the end side passing through the through holes 14 without crossing each other and preventing them from moving. wire locking grooves 15A, 15
B, 15C are formed. Note that a tapered portion 16 and a locking piece 17 are formed at both ends of the corner portions of the electric wire locking grooves 15A, 15B, and 15C, respectively, to facilitate the locking operation of the wire and to prevent the wire from coming off. The upper surface of the head 12 of the fixing device main body 11 has the wire locking grooves 15A, 15B, 15C.
Recesses 18A, 18B, and 18C are formed to communicate with the recesses 18A, 18B, and 18C. The head 12 of the fixing device main body 11 is provided with a mounting hole 19 that penetrates from the front to the back on both sides of the head 12 so as not to penetrate the through hole 14.
19 is formed.

Reference numeral 20 denotes a mounting bracket for attaching the fixing device main body 11 to a utility pole or the like, and this mounting bracket 20 is integrally molded with a mounting bracket body 21 made by bending wire into a substantially U-shape, and one tip of this mounting bracket body 21. Engagement pieces 23, 23 are inserted into the attachment holes 19, 19 of the fixing device main body 11 and have engagement parts 22, 22 at their tips, respectively, and are rotatably attached to the other tip of the mounting bracket body 21. The mounting portion 25 is composed of the mounting pieces 24, 24 that engage with the engagement portions 22, 22 of the engagement pieces 23, 23, which have been inserted.

In the above structure, one end of the overhead wire 26, for example, made of three strands, is inserted into the through hole 14 of the fixing device main body 11, and when the end of the overhead wire 26 passes through the predetermined length,
Three electric wires 26a, 26 that constitute the overhead line 26
b and 26c are each bent by approximately 90 degrees and engaged with the recesses 18A, 18B, and 18C at the ends of the fixing device main body 11, respectively. After that, the wire locking groove 15
Electric wires 26a, 26b, 26 to A, 15B, 15C
3.Bend each part, insert it, and lock it. After that, the engagement pieces 23, 23 of the mounting bracket 20 are inserted into the attachment holes 19, 19 of the fixing device main body 11, respectively, and the attachment pieces 24, 24 are engaged with the engagement parts 22, 22 of the engagement pieces 23, 23. Then, the end of the mounting bracket 20 is hooked onto a hook 27 attached to a building or the like.

Next, climb the telephone pole, pull up the overhead wire 26, and pull it to determine the length of the overhead wire 26 and cut it. Thereafter, the mounting bracket 20 is passed through the mounting bracket 29 fixed to the utility pole 28, and the fixing device main body 11 is attached to the mounting bracket 20. Next, the end of the overhead wire 26 is passed through the through hole 14 of the fixing device main body 11 and pulled, and when the tension is tight, the electric wires 26a, 26b, and 26c that make up the overhead wire 26 are bent by about 90 degrees and fixed. Recesses 18A, 18B, 18 at the ends of the device main body 11
C respectively. These electric wires 26a, 26
By bending b and 26c by about 90 degrees, the wire 26
A, 26b, and 26c can be maintained in a tensioned state without being stretched. Next, wire locking groove 15A, 1
Electric wires 26a, 26b, and 26c are respectively locked to 5B and 15C. At this time, the electric wires 26a, 26b, 26c are fixed without rotating the fixing device main body 11.
can be respectively locked in the wire locking grooves 15A, 15B, and 15C.

Next, a different embodiment of the present invention shown in FIG. 8 will be described. In the description of this embodiment, the same parts as those in the embodiment of the present invention will be denoted by the same reference numerals and redundant explanation will be omitted.

In the embodiment shown in FIG. 8, the main difference from the embodiment of the present invention is the mounting bracket 20A, which is formed by bending the wire 30. It is fixed by a stopper 31.

In the above embodiment, three wire locking grooves 15A, 15B, and 15C 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. In this case, the entire fixing device main body 11 may be formed into a square column shape. Also, the fixing device main body 11
The wire locking groove formed on the outer periphery 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) After attaching the mounting bracket to the mounting hole of the fixing device body, attach the mounting bracket to a utility pole, etc. After that,
Insert the end of the overhead wire through the through hole on the side opposite to the mounting hole of the fixing device body, pull only the end of the overhead wire, and when the overhead wire reaches the specified tension state. By bending the overhead wire approximately 90 degrees at the end of the through hole on the mounting hole side of the fixing device body,
This prevents the overhead wire from being pulled back due to its own weight. Therefore, the overhead wire can be pulled by pulling only the end portion of the overhead wire through the through hole, so that the overhead wire can be pulled sufficiently and safely.

In addition, when attaching the end of the overhead wire that has passed through the through-hole of the fixing device body to the wire locking groove formed on the outer periphery of the fixing device body, the overhead wire should be bent and locked at the end of the through-hole. It can be done safely and easily.

(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 to bind three-strand or two-strand overhead wires.

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

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

(7) Since the fixing device body and the mounting bracket are attached by passing the attachment part of the mounting bracket into the mounting hole formed in the fixing device body, the fixing device body and the mounting bracket can be attached reliably and firmly.

[Brief explanation of the drawing]

Fig. 1 is an explanatory diagram showing one conventional embodiment, Fig. 2 is a side view showing an embodiment of the present invention, and Fig. 3 is an explanatory diagram showing an embodiment of the present invention.
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.
FIG. 7 is an explanatory view showing an attached state, and FIG. 8 is an explanatory view showing a different embodiment of the present invention. 11...Fixing device main body, 12...Head, 13...
...Lower, 14...Through hole, 15A, 15B, 15
C...Electric wire locking groove, 16...Tapered portion, 17...
...Locking piece, 18A, 18B, 18C...Recess, 1
9...Mounting hole, 20, 20A...Mounting bracket, 2
1...Mounting bracket body, 22...Engaging portion, 23...
...Engagement piece, 24...Mounting piece, 25...Mounting portion, 2
6... Overhead wire, 26a, 26b, 26c... Electric wire, 27... Hook, 28... Telephone pole, 29... Mounting tool, 30... Wire, 31... Fuzzing stopper.

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. at least one mounting hole formed on the fixed side of the device body so as not to penetrate through the through hole;
A device for fixing a tip end of an electric wire, comprising a fitting for attaching to a utility pole or the like, and having a mounting portion for inserting into a mounting hole of the fixing device body and attaching the fixing device body. 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 wavy shape. 5 Utility model registration claims 1 to 4, characterized in that the head of the fixing device main body in which the mounting hole is formed is formed in the shape of a square prism, and the lower part is formed in the shape of a triangular prism. The electric wire tip fixing device according to any one of the above. 6. The tip end of the electric wire according to any one of claims 1 to 5 of the utility model registration claim, characterized in that the head of the fixing device main body has two mounting holes formed at corresponding positions. Fixation device. 7 The mounting bracket consists of a mounting bracket body made by bending a wire into a substantially U-shape, and an engagement piece that is inserted into the mounting hole of the fixing device body formed at one tip of the mounting bracket body and has an engaging portion at the tip. and a mounting portion comprising a mounting piece that engages with the engaging portion of the engaging piece that is rotatably attached to the other end of the mounting bracket main body. An electric wire tip fixing device according to any one of claims 1 to 6.