JP2761630B2 - Terminal cap for underline - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of distributing an underline branched from a power transmission and distribution line on a power pole. The present invention relates to a terminal cap for an underline, which prevents a ground fault from occurring upon contact and an electric shock upon contact with a person.

[0002]

2. Description of the Related Art Conventionally, when power distribution work of an underline is performed on a telephone pole, a terminal cap is attached to a tip of the underline to prevent a ground fault accident or an electric shock accident. Since there is no dedicated underline terminal cap, transmission and distribution line terminal caps are used.

[0003]

In the case where the terminal cap for transmission and distribution lines is used as an underline, the transmission and distribution lines have a diameter larger than that of the underline. In addition, the workability is poor due to temporary fixing with tape and the like, and the terminal cap attached to the underline is often detached and dropped, causing a risk of a ground fault accident and an electric shock accident. Therefore, the present invention provides a terminal cap dedicated to an underline, which can be easily indirectly attached to the underline through a tool such as an insulated screw or the like with a one-touch operation and does not accidentally come off. It is an object.

[0004]

In order to achieve the above object, a terminal cap for an underline according to the present invention is provided with a plurality of cuts in a longitudinal direction of an open end of a bottomed cylindrical body through which an underline is inserted. By forming a divided piece, a cap body having a trumpet-shaped insertion port connected thereto is formed, and a divided piece formed by a plurality of cuts provided in the insertion port is formed to be contractible, and the bottomed cylindrical body is formed. A sleeve having a required length is slidably attached to the insertion port, and the sleeve is slid toward the insertion port side with the underline inserted through the bottomed cylindrical body from the insertion port, and a division is provided at the insertion port. tighten the pull down line by contracting the strips so as to solid <br/> up a cap body to the terminal of the pull-down lines.

[0005] In addition, a locking claw that cuts into the underline is protruded from the inner tip of the divided piece obtained by dividing the bottomed cylindrical body insertion opening, and these locking claws are cut into the underline, whereby the underline is drawn. And the cap body is more securely fixed.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of an underline terminal cap according to the present invention will be described below with reference to the drawings. In the figure, reference numeral 1 denotes a bottomed cylindrical body 2 having an inner diameter enough to insert an underline, and a cap body provided with an insertion opening 3 at the tip. In the cap body 1, flanges 4 and 4 are provided around the rear end of the outer peripheral surface of the bottomed cylindrical body 2, and ribs 5 are provided around the outer periphery of the distal end of the insertion port 3. Then, by forming a divided piece 7 provided cuts 6 of a plurality of V-shaped at predetermined intervals in the longitudinal direction than the ribs 5 of the outer periphery of the tip end of the insertion opening 3, is opened to a diameter of the insertion port 3 like a horn that The diameter of the opening is made contractible.

Reference numeral 8 denotes a sleeve having an inner diameter slidable on the bottomed cylindrical body 2 and having a predetermined length.
Has been established. This sleeve 8 is slidably fitted on the outer periphery of the insertion opening 3 side divided into a plurality of divided pieces on the tip side from the center of the bottomed cylindrical body 2, and a flange provided at one end of the sleeve 8. The flange 9 at the other end is positioned so as to abut against the flange 4 of the bottomed cylindrical body 2, and the flange 9 at the other end is positioned to abut against the rib 5 at the tip of the bottomed cylindrical body 2. The part 9 is a bottomed cylinder 2
1 and 2, each of the divided pieces 7 forming the insertion opening 3 side of the bottomed cylindrical body 2 expands into a flared strip as shown in FIGS. .

The underline terminal cap C thus formed is inserted into the insertion opening 3 of the cap body 1 with the bottomed cylindrical body 2 of the cap body 1 sandwiched between insulating caps P as shown in FIG. The tip of the underline Wa is inserted and further pushed in so that the tip of the underline Wa reaches the bottom of the bottomed cylinder 2. Then, as shown in FIG. 4, the sleeve 8 is sandwiched between the insulating screws P, and the sleeve 8 is slid toward the insertion slot 3 so that the flange 9 at the tip of the sleeve 8 is fitted to the rib at the tip of the insertion slot 3. 5, the outer peripheral surface of each of the divided pieces 7 formed by dividing the insertion opening 3 is tightened by the inner peripheral surface of the sleeve 8 to clamp the underline Wa.
Is fixed to the underline Wa. As described above, when the cap body 1 is attached to the underline Wa, the insertion opening 3 side of the cap body 1 is divided into the respective divided pieces 7 and is opened in a trumpet shape, so that remote control by the insulating plug P is easy, The underline terminal cap C can be easily attached to the terminal of the underline Wa.

[0009] In addition, each of the locking claws 10 is formed by projecting the locking claws 10 on the inner sides of the opposed ends of the divided pieces 7 forming the insertion opening 3 of the cap body 1. The cap body 1 is pressed by the sleeve 8, bites into the insulating coating layer on the outer peripheral surface of the pull-down line Wa and is caught, so that the cap body 1 can be more reliably fixed to the pull-down line Wa.

Next, when removing the cap main body 1 fixed to the underline Wa, the sleeve 8 attached to the cap main body 1 is sandwiched by the insulating screw P and slides in the direction opposite to the opening side. The insertion opening 3 which was pressed by the sleeve 8
Since each of the divided pieces 7 is released and opened like a trumpet, the cap body 1 can easily be pulled out from the underline Wa.

An example of the use of the underline terminal cap C according to the present invention will be described. In FIG. 8, a branch line W branched from each transmission and distribution line installed between telephone poles
Is wound around an insulator G attached to a ferrule a fixed on a telephone pole, bound with a bind line b, and the branched underline Wa is wrapped around the branch line W branched from the transmission and distribution line several times. And the tip thereof is connected to the cutout insulator G1 mounted on the arm a.

First, a method of connecting the wire terminal T of the general cutout insulator G1a and the pull-down line Wa will be described with reference to FIG. During the work, in order to prevent an accident due to contact, as shown in FIG. 9A, the terminal of the underline Wa is covered with the underline terminal cap C as described above. An insulator cap GC is attached to the wire terminal T of the general cutout insulator G1a. Therefore, the terminal cap C for the underline is removed from the terminal of the underline Wa, and as shown in FIG.
Is removed, and the insulator cap GC is passed through the underline Wa. Next, the underline Wa
9C is inserted into the wire terminal T as shown in FIG. 9C, the fixing screw Sn is tightened to fix the pull-down wire Wa to the wire terminal T, and FIG. The insulator cap GC passed through the underline Wa as shown in FIG.
As described above, the connection work is completed by attaching and fixing the tip of the general cutout insulator G1a.

Next, a method of connecting the lead wire R of the cut-out insulator G1b for salt resistance and the pull-down wire Wa used mainly near the shore will be described. First, the underline Wa is shown in FIG.
Insert the sleeve cover Sc as shown in FIG.
A terminal cap C for underline is put on the terminal a in the manner described above in order to prevent an accident due to contact. Then, as shown in FIG. 10 (b), the underline terminal cap C is removed from the underline Wa, and the crimping sleeve S is attached to the wire exposed at the tip of the underline Wa and the lead wire R of the cutout insulator G1b for salt resistance. Then, the crimp sleeve S is compressed to connect the pull-down wire Wa and the lead wire R. Next, the sleeve cover Sc is moved in the direction indicated by the arrow in FIG. 10 to be attached to the crimping sleeve S, and an insulating tape is applied to each portion A shown in FIG. 10D around both ends of the sleeve cover Sc. The connection operation is completed by winding and fixing the sleeve cover Sc.

[0014]

As described above, the underline terminal cap according to the present invention can be applied to the element wire of the terminal of the underline when performing the distribution work of the underline branched from the transmission and distribution line. By inserting the underlined terminal into the cap body with the bottomed cylindrical body sandwiched between insulating caps and moving the sleeve attached to the bottomed cylindrical body to the insertion port, the pull inserted into the cap body The underline element wire can be securely fixed to cover and protect the underline end, and even when the cap body is removed from the underline, the sleeve can be moved to remove the cap body with one touch. Operation is safe and easy. In addition, since the cap body does not accidentally fall off, it is possible to reliably prevent a ground fault accident caused by the element wire exposed at the tip of the draw down line coming into contact with the arm member or the like. In addition, the work of attaching the underline terminal cap to the underline can be performed with one touch by the indirect method, thereby preventing an accident such as electric shock. Therefore, it is possible to prevent accidents such as ground faults and electric power generation during the wiring construction of the underline and to work safely.

[Brief description of the drawings]

FIG. 1 is a perspective view of an underline terminal cap according to the present invention.

FIG. 2 is a front sectional view of an underline terminal cap;

FIG. 3 is a perspective view of a process of inserting an underline terminal into an underline terminal cap.

FIG. 4 is a perspective view of a process of fixing an underline terminal to an underline terminal cap.

FIG. 5 is a perspective view showing a state in which an underline terminal is inserted into an underline terminal cap.

FIG. 6 is a front sectional view of FIG. 5;

FIG. 7 is a side view of the underline terminal cap in a state where the sleeve is slid to the insertion opening.

FIG. 8 is a diagram showing a state of power distribution work of an underline.

FIG. 9 is an explanatory diagram of a connection between a terminal of a general cutout insulator and an underline.

FIG. 10 is an explanatory diagram of a connection between a lead wire of a cut-out insulator for salt damage and a drawing wire.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 cap body 2 bottomed cylinder 3 insertion opening 4 gripping member 6 cut 7 split piece 8 sleeve 10 locking claw Wa underline

Claims (2)

(57) [Claims] 1. A cap body having a trumpet-shaped insertion opening by forming a plurality of cuts in a longitudinal direction of an open end of a bottomed cylindrical body through which an underline is inserted and forming a divided piece, With multiple cuts in the insertion slot
By forming the diameter of the opening of the divided piece that can be contracted,
A sleeve having a required length is slidably attached to the insertion opening of the bottomed cylindrical body, and the sleeve is slid to the insertion opening side in a state where a draw line is inserted through the bottomed cylindrical body from the insertion opening. An underline terminal cap, characterized in that the underline is tightened by shrinking the diameter of the opening of the split piece provided in the insertion opening to fix the cap body to the end of the underline. 2. The underline terminal cap according to claim 1, wherein a locking claw that cuts into the underline is projected from an inner end of the divided piece into which the insertion opening is divided.