JPH0965530A - Terminal cap for underline - Google Patents

Abstract

(57) [Abstract] [Problem] In the distribution work of the down line on the utility pole,
Prevents ground fault accidents or electric shock accidents that occur when the underlined terminal comes into contact with a wire or the like. SOLUTION: A cap main body 1 in which a trumpet-shaped insertion port 3 is continuously provided at an open end of a bottomed cylindrical body 2 through which a draw-down line Wa is inserted, and a pair of bottomed cylindrical bodies 2 of the cap main body 1 are sandwiched. The one gripping portion 5a of the gripping member 4 in the shape of a clip in which the gripping portions 5a and 5b of the above are openably and closably provided
The other grip portion 5b is made to face the opening window 9 provided in the bottomed cylindrical body 2, and the other grip portion 5b is always made to face the opening window 9 by the biasing force of the spring 7. And a bottom line W that is inserted into the bottomed tubular body 2
The terminal a is fixed in the cap body 1.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wire, such as a wire, where the end of a down wire, which is a live wire, is exposed when a down wire branched from a power transmission and distribution line is installed on a utility pole. The present invention relates to a terminal cap for a down line, which prevents a ground fault accident due to contact with the person and an electric shock due to contact with a person.

[0002]

2. Description of the Related Art Conventionally, when carrying out power distribution work for a down line on a utility pole, a terminal cap is attached to the tip of the down line to prevent a ground fault accident or an electric shock accident. Since there is no end cap for the down line, the end cap for the transmission / distribution line is used.

[0003]

When the end cap for a transmission and distribution line is diverted to the down line in this way, the end cap for the transmission and distribution line has a larger diameter than that of the down line. Is too large and the workability is poor, and there is a risk that the terminal cap attached to the down line often separates and falls, resulting in a ground fault or an electric shock. Therefore, the present invention provides a terminal cap for a pull-down line, which can be attached to the pull-down line indirectly through a tool such as an insulation jack and can be easily attached to the pull-down line without inadvertently coming off. It is an object.

[0004]

In order to achieve the above object, a drawdown terminal cap according to the present invention is a cap in which a trumpet-shaped insertion port is connected to an open end of a bottomed cylindrical body through which the drawdown line is inserted. One gripping portion of a clip-shaped gripping member that forms a main body and sandwiches the bottomed cylindrical body of the cap main body is provided to be openable and closable, and the other gripping portion is fixed to the bottomed cylindrical body. Is made to face an opening window provided in the bottomed tubular body, and the other gripping portion is always made to face the opening window by a biasing force of a spring so as to project into the bottomed tubular body. The pull-down line inserted through the above is pressed to fix it to the cap body that is inserted.

[0005]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of a terminal cap for underlining according to the present invention will be described below with reference to the drawings. In the figure, reference numeral 1 denotes a cap body formed by connecting a trumpet-shaped insertion opening 3 to an open end of a bottomed cylindrical body 2 having an inner diameter into which a pull-down wire is inserted. On the other hand, 4 has a pair of left and right symmetrical members 4a and 4b whose front ends are arc-shaped gripping parts 5a and 5b and whose proximal sides are levers 6a and 6b, and which is provided with a support shaft 8 via a spring 7. It is a gripping member formed in a clip shape by being openably and closably connected by. The other gripping portion 5b of the gripping member 4 is formed in an arc having a smaller diameter than the one gripping portion 5a as shown in FIG. 4, and is constantly biased by the spring 7 in the closing direction.

In the gripping member 4 thus formed, the inner surface of the gripping portion 5a of the one component member 4a is fixed to the outer surface of the bottomed cylindrical body 2 of the cap body 1. Then, the other holding portion 5b of the other member 4b is made to face the bottomed tubular body 2 on the opposite side surface to which the holding portion 5a of the one member 4a of the bottomed tubular body 2 is fixed. An opening window 9 is formed on the side wall of the bottomed cylindrical body 2.
Has been established.

In the terminal cap C for pulling down wire constructed as described above, when the levers 6a and 6b provided at the lower end of the holding member 4 are sandwiched by the insulating cots P as shown in FIG. 6, the other member of the holding member 4 is held. 4b moves inwardly around the support shaft 8 against the bias of the spring 7, and separates the grip portion 5b facing the opening window 9 of the bottomed tubular body 2 to the outside of the opening window 9. Therefore, the tip of the underline Wa is inserted from the insertion opening 3. When inserting the draw-down line Wa into the cap body 1, the cap body 1
Since the opening end of the insertion port 3 is formed into a trumpet shape, it is easy to operate the insulating cot P. Then, when the pinching of the insulating cot P is released in a state where the tip of the inserted pull-down line Wa reaches the innermost end of the bottomed tubular body 2, the other member 4b of the gripping member 4 is repulsed by the spring 7 to the original position. Return to the position
The gripping portion 5b faces the opening window 9 provided on the side wall of the bottomed tubular body 2 and projects into the bottomed tubular body 2, and is clamped so as to press the pull-down line Wa inserted in the bottomed tubular body 2. , The cap body 1 holds the underline Wa.

Next, an example of use of the underline terminal cap C according to the present invention constructed as described above will be described. In Fig. 8, each transmission / distribution line installed between utility poles is wound around an insulator G mounted on a arm a fixedly installed between the utility poles, tied with a bind wire b, and a branched down line Wa is distributed. The electric wire W is circulated several times and then pulled down, and its tip is connected to the cutout insulator G1 mounted on the arm a.

First, a method of connecting the wire terminal T of the general-purpose cutout insulator G1a and the draw-down wire Wa will be described with reference to FIG. During work, in order to prevent accidents due to contact, the terminal of the underline Wa is capped with the terminal C of the underline Wa as shown in FIG. 9A. An insulator cap GC is put on the element terminal T of the general-purpose cutout insulator G1a. Therefore, the draw-down terminal cap C is removed from the end of the draw-down wire Wa, and the wire-cut terminal T is attached at the tip of the general-purpose cutout insulator G1a as shown in FIG.
The insulator cap GC that has been attached to the is removed, and the insulator cap GC is passed through the underline Wa. Next, underline Wa
9 (c), the wire exposed at the tip of the wire is inserted into the wire terminal T, and the fixing screw Sn is tightened to fix the pull-down wire Wa to the wire terminal T, as shown in FIG. As shown in FIG. 9 (d), the insulator cap GC that has been passed through the underline Wa as shown in FIG.
As described above, the connection work is completed by fixing the cut-out insulator G1a for general use to the tip thereof by fixing it.

Next, a method of connecting the lead wire R and the pull-down wire Wa of the salt-resistant cutout insulator G1b mainly used near the coast etc. will be described. First, the underline Wa is shown in FIG.
Insert the sleeve cover Sc as shown in
In order to prevent accidents due to contact, the terminal a is capped with the terminal cap C for the underline in the same manner as described above. Then, as shown in FIG. 10B, the pull-down wire end cap C is removed from the pull-down wire Wa, and the strand exposed at the tip of the pull-down line Wa and the strand exposed at the end of the lead wire R are crimped to each other. Insert into S and compress crimp sleeve S to draw down wire W
Connect a and the lead wire R. Next, the sleeve cover Sc
Is moved in the direction shown by the arrow in FIG. 10C to be attached to the pressure-bonding sleeve S, and the insulating tape is wrapped around each A portion shown in FIG. The connection work is completed by fixing the cover Sc.

[0011]

As described above, the terminal cap for a down wire according to the present invention is a terminal cap for a down wire for a strand of the terminal of the down wire when the power distribution work of the down wire branched from the transmission and distribution line is performed. Insert the underlined end into the cap body while the lever of the gripping member is sandwiched by the insulating yatco, and release the sandwiching of the lever of the gripping member by the insulating yatco while inserting the underlined end. Since the pull-down line inserted in the cap body can be fixed with and the end of the pull-down line can be covered and protected, the pull-down line terminal cap can be securely attached to the pull-down line terminal securely and easily by one-touch remote control. Further, it is possible to reliably prevent the ground fault accident caused by the wire exposed at the tip of the pulling wire coming into contact with the armrest or the like without being accidentally dropped. Further, the work of attaching the pull-down terminal cap to the pull-down line can be performed by one-touch by the indirect method, so that accidents such as electric shock can be prevented and the work can be performed safely.

[Brief description of drawings]

FIG. 1 is a perspective view of a terminal cap for underlining according to the present invention.

FIG. 2 is a side view of the same.

FIG. 3 is a sectional view taken along line AA of FIG. 2;

4 is a cross-sectional view taken along the line BB of FIG. 2, showing a state in which the other grip portion 5b of the grip member is closed.

5 is a cross-sectional view taken along the line BB of FIG. 2, showing a state in which the other grip portion 5b of the grip member is opened.

FIG. 6 is a perspective view of the process of inserting the underlined terminal into the cap body.

FIG. 7 is a perspective view showing a state in which an underlined terminal is inserted into the cap body.

FIG. 8 is a plan view showing a state of distribution work of a down line.

FIG. 9 is an explanatory view of the connection between the terminal and the underline of the general-purpose cutout insulator.

FIG. 10 is an explanatory view of connection between a lead wire and a down wire of a cutout insulator for salt damage.

[Explanation of symbols]

 1 Cap Main Body 2 Bottomed Cylindrical Body 3 Insertion Port 4 Gripping Member 5a, 5b Gripping Part 7 Spring 8 Spindle 9 Opening Window Wa Underline

Claims (1)

[Claims] 1. A cap main body in which a trumpet-shaped insertion port is connected to an open end of a bottomed cylinder through which a pull-down wire is inserted, and a pair of gripping portions for sandwiching the bottomed cylinder of the cap main body are opened and closed. One of the grips of the clip-shaped gripping member that is freely provided is fixed to the bottomed cylinder, and the other grip is made to face the opening window provided in the bottomed cylinder, and the other grip is held. The portion is configured such that it is always biased toward the opening window by a spring force and protrudes into the bottomed tubular body, and the pull-down line inserted in the bottomed tubular body is pressed and fixed. Underline terminal cap.