JPH1023624A - Tool for having insulator string in a lump - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily attach insulator strings for divided assembling by a method, wherein a pair of holding parts which hold the insulator strings so as to be attached detached freely are provided on both the ends of a frame and a hanger is provided on the frame. SOLUTION: A frame 4 has a mounting part and an L-shaped member, and a reinforcing rib are provided on the front and rear of the frame 4. A pair of ribs 5a and 5b are provided on the lower part of the L-shaped member, so as to hold an arm A from both its sides between themselves. A hanger 6, having a hole 6a with which a hook for hanging a tool (a) by a lift, is retained is provided on the upper part of the mounting part, e.g. on the side of the frame 4 opposite to the side where the part of the ribs 5a and 5b are provided. In order to attach two sets of insulator strings 2 and 2 to the arm A, the two sets of the insulator strings 2 and 2 are set on the tool (a). The closing tabs of holding parts 8a and 8b are opened, and two sets of insulators 2a and 2a are inserted into openings and the closing tabs are fixed by pins 10b having springs.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an insulator assembly which is used when an electric wire is attached to an electric pole via a lead-in column and is changed to a distribution column in a live state and attached. The present invention relates to a lifting tool, and more particularly to a lifting tool which is suitable for attaching an insulator string constituting a distributing column to a ferrule.

[0002]

2. Description of the Related Art FIG. 5 (a) shows a state in which an electric wire (distribution line) L is attached to a utility pole P via a connecting pole a.
FIG. 2B shows a state in which the electric wire L is attached to the electric pole P via the distribution pole B. That is, the electric wire L in the installation pole A is fixed to the pin type insulator 1 provided on the arm A by the bind wire B, and the electric wire L in the distribution pole B is provided on both sides of the arm A, respectively. Attached via the provided insulator trains 2 and 2 and the tension clamps 3 and 3, the jumper wire L 'of the electric wire L is connected to the pin type insulator 1
It is fixed to.

[0003] The service column a shown in FIG.
When performing a work such as a partial repair on the distribution line, the distribution column may be changed to the distribution column b shown in FIG. 5B in order to minimize the blackout section.

[0004] Fig. 5 (c) shows a case in which the work is performed by changing the service pole a to the sorting pole B. That is, prior to this construction, the distribution poles B, which sandwich the construction section C, and the wires L, L of the distribution poles B, are connected to the bypass line L ″ with the switches S, S interposed therebetween using T-type connectors C, C. As a result, the live state of the electric wire L is maintained, and the portion of the jumper line L 'of the two distribution columns B and B is cut off (see the cross mark in FIG. 5C), so that a power outage in the construction section C is achieved. And, after the construction is completed, jumper line L ',
The cut portion of L 'is connected again, and the bypass line L "is disconnected.

[0005]

However, the above-mentioned work for changing from the conventional insertion column to the sorting column is usually performed in a live state, and in this case, the worker is required to wear rubber gloves or the like. It was done by hand after installing other insulation equipment.

[0006] As described above, since the work of changing from the installation column to the sorting column has been directly performed by a worker, the emergence of a tool that can be indirectly performed in view of ensuring safety has been awaited. Had been.

SUMMARY OF THE INVENTION Accordingly, the present invention has been made in order to meet the above-mentioned demands, and has as its object the purpose of an insulator continuous hanging tool used when indirectly changing from a service column to a sorting column. Is to provide.

[0008]

SUMMARY OF THE INVENTION In order to achieve the above object, an insulator ream lump tool according to the present invention has two sides attached to a part to be mounted on an arm provided on a utility pole. A frame provided with a pair of ribs so as to sandwich it, a pair of holding portions for detachably holding an insulator string at both ends of the frame, and a frame opposite to the side where the pair of ribs are provided. And a hanging piece provided.

[0009]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a front view of an insulator continuous hanging tool (hereinafter, referred to as a “tool”) a according to an embodiment, FIG. 2 is a left side view thereof, and FIG. 3 is a sectional view taken along line XX of FIG. The same components as those in FIG. 5 will be described using the same reference numerals.

[0010] The frame 4 has a mounting portion 4a to be mounted on the arm A at a central portion in the longitudinal direction thereof. An L-shaped member 4b and a reinforcing rib 4c are provided before and after the member 4. A pair of ribs 5a and 5b are provided below the L-shaped member 4b so as to sandwich both sides of the arm A. And
The lower ends of the ribs 5a and 5b are formed so as to open downward so as to be easily inserted into the arm A. Also,
An upper portion of the mounting portion 4a, that is, a pair of ribs 5a, 5
On the frame 4 on the side opposite to the side where b is provided, there is provided a hanging piece 6 having a hole 6a for engaging a hook when the tool a is hung by a lift (not shown).

The length of the frame 4 is determined by the length of the insulator 2 used in the sorting column B. At both ends of the frame 4, hanging pieces 7a and 7b are provided so that the lower end is located at substantially the same height as the lower end of the arm bar A and extend downward like an open leg. (See FIG. 1).

At the lower ends of the hanging pieces 7a and 7b, there are two insulator rows.
Gripping portions 8a and 8b for detachably gripping are provided. The two grips 8a and 8b have the same configuration except that they are symmetrical about the center position of the frame 4 (the position of the arm A in FIG. 1). This will be described with reference to FIG.

The holding portion 8a is bent 90 ° forward (in FIG. 1) from the lower side of the lower end of the hanging piece 7a, and has an opening formed at the center thereof to a size into which the insulator 2a of the insulator series 2 can be inserted. 9a and its opening 9a
Has an opening piece 9 whose one side is open.

One end side of the opening piece 9 is connected to the shaft 1.
A closing piece 10 that is rotatably supported by Oa and has a length that can close the opening 9a of the opening piece 9 is provided. On the other end of the closing piece 10, a spring-loaded pin 10b having a head with a hole is movably provided. The spring-loaded pin 10b is configured to be always locked in a pin hole 9b provided in the opening piece 9 by a spring force.

Using the tool a having the above structure, the insulator ream 2,
In order to attach 2 to the arm A, two sets of insulators 2, 2 are set on the tool a on the ground as shown in FIG. That is, first, the attachment pieces 12a and 12b connecting the tension clamp 3 and the sag adjusting fitting 11 are assembled with the insulator 2a to form two sets of insulator trains 2 and 2. Then, the two sets of insulator series 2, 2 insulators 2a, 2a open the closing pieces 10, 10 of the gripping parts 8a, 8b to open the opening parts 9a,
9a, the closing piece 10 is then closed, and the closing piece 10 is fixed by a spring-loaded pin 10b. As a result, the two sets of insulator trains 2 and 2 are maintained in a state of being gripped by the tool a.

In FIG. 4, reference numerals 13 and 13 denote bands with a magic zipper.
It is used to prevent swinging of 12b, 12a, 12b and to temporarily fix to the frame 4 so that it can be easily adjusted to the position of the arm A.

The tool a gripping the insulator rows 2 and 2 is suspended by suspending the hanging piece 6 with a hook of a lift (not shown), and lifting the tool a onto the arm A by the lift. Are guided by the ribs 5a and 5b of the arm arm A.

Thereafter, a band 1 with a magic zipper
3, 13 are removed, and the mounting pieces 12a, 12b, 12a, 1
The mounting hole 2b (not shown) is aligned with the mounting hole provided in the arm A, the bolt 1 '(see FIG. 5B) of the pin type insulator 1 is inserted, and the nut 1 "is inserted into the bolt 1'.
Are screwed in, and the insulator rows 2 and 2 are fixed to the arm bar A.

After the insulator reams 2 and 2 are fixed to the arm A,
The closing pieces 10, 10 are opened, the insulators 2a, 2a are released, and the tool a is removed from the arm A through the hanging pieces 6. Thereafter, the electric wires L, L are held by the tension clamps 3, 3, and the jumper wire L 'of the electric wire L is attached to the pin type insulator 1 and wired as shown in FIG. 5 (b). You.

[0020]

According to the present invention, there is provided a tool having a frame provided with a pair of ribs so as to sandwich both sides of the arm at the portion to be mounted on the arm provided on the electric pole, and both ends of the frame. Since it is composed of a pair of grips for detachably gripping the insulator series on the side and a hanging piece provided on the frame on the side opposite to the side on which the pair of ribs are provided, The insulator ream can be easily attached to the arm,
It can be a tool suitable for hot-line work.

[Brief description of the drawings]

FIG. 1 is a front view of a tool according to an embodiment of the present invention.

FIG. 2 is a left side view of FIG.

FIG. 3 is a sectional view taken along line XX of FIG. 1;

FIG. 4 is a front view when an insulator ream is attached to a tool.

5 (a) is an explanatory diagram showing a service column, FIG. 5 (b) is an explanatory diagram showing a sorting column, and FIG. 5 (c) is an explanatory diagram showing a construction state between the sorting columns.

[Explanation of symbols]

 Reference Signs List 1 pin type insulator 2 insulator series 3 tension clamp 4 frame 5a, 5b rib 6 hanging piece 6a hole 7a, 7b hanging piece 8a, 8b gripping part 9a opening piece 10 closing piece 11 looseness adjusting fitting 12a, 12b mounting piece 13 magic Band with zipper A Arm L L Electric wire P Electric pole A Service pole B Distributing pole

Claims (1)

[Claims] 1. A frame provided with a pair of ribs so as to sandwich both sides of the arm at a portion to be mounted on an arm provided on a telephone pole, and an insulator at both ends of the frame. And a hanging piece provided on the frame on the side opposite to the side on which the pair of ribs are provided.