JPH0738313B2 - Sleeve compressor for wire connection - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sleeve compressor used for wire connection work using a sleeve in distribution line work.

(Prior Art) For example, at the time of work such as replacement of a utility pole arm or replacement of an insulator, it is necessary to cut the distribution line on the utility pole to perform the work. It is necessary to connect the electric wire.

Conventionally, a wire connecting sleeve has been widely used to connect the cut distribution lines, but the wire is manually inserted into a connection hole formed in the sleeve.

(Problems to be solved by the invention) By the way, since a constant tension is applied to the distribution line on the electric pole, the tip of the wire is aligned with the position of the connection hole of the wire connection sleeve, and the wire is inserted into the connection hole. It is a heavy work for the operator to insert the tip to a predetermined depth and operate the compressor while maintaining this state.

The present invention has been made based on such a background, and an object thereof is to reduce the burden on the operator in the work of connecting distribution lines.

(Means for Solving the Problem) In order to achieve this object, the present invention provides a sleeve gripping part for gripping a sleeve and an electric wire gripping part for gripping an electric wire at positions separated via a moving mechanism, The connection hole formed linearly from the opening of the end surface of the sleeve gripped by the sleeve gripping portion and the electric wire gripped by the electric wire gripping portion are positioned on the same straight line and face each other. And the end of the wire in the direction parallel to the connection hole, and by this approach, one end of the wire is inserted into the connection hole of the sleeve, and then the sleeve is compressed and deformed from the outer peripheral surface to connect the sleeve to the wire. In the compressor,
The sleeve grip portion has a compression portion that includes a pair of dies that directly clamp the sleeve, and the compression portion has a guide rail that allows the die to move along the sleeve. In addition to directly pressing the die, the die has a compression tool that is detachable.

(Operation) According to the present invention, the sleeve and the electric wire are respectively grasped by the sleeve grasping portion and the electric wire grasping portion, and the electric wire grasped by these and the connection hole of the sleeve are positioned so as to face each other on a straight line. Since the sleeve gripping portion and the wire gripping portion are brought close to each other by the moving mechanism, the sleeve gripping portion and the wire gripping portion are gripped by the gripping portions, and then the sleeve gripping portion and the wire gripping portion are brought close to each other. , The operator does not need to consider the alignment, and the moving mechanism opposes the tension of the distribution line, so the worker can easily insert and hold the wire in the connection hole of the sleeve. Person's burden is reduced.

Further, according to the present invention, since the die of the compression section is made movable and the compression section and the compression tool are separated, the present invention can be applied to a short sleeve or a particularly long sleeve.

(Examples) Hereinafter, the present invention will be described with reference to Examples shown in the drawings.
First, a first embodiment will be described with reference to FIGS.

Sleeve compressor for electric wire connection (hereinafter simply referred to as compressor)
M is the compressor main part 1 shown in FIG. 1 and this compressor main part 1
And a separate compression tool 23 (see FIG. 3).

The compressor main part 1 is composed of a base 2 and a sliding member 3. The sliding member 3 is slidably held by the base 2 and is rotated by a screw shaft 4 constituting a ball screw device. The projecting position from is changed (these correspond to the moving mechanism in the present invention).

On the upper surface of the base 2, a sleeve gripping portion 5 and guide rails 7a, 7b and a die 8 forming a part of a compressing portion 6 described later.
a and 8b are installed.

As shown in cross section in FIG. 2, the sleeve grip portion 5 has a fixed pawl 11 and a movable pawl 12, and these fixed pawl 11 and movable pawl 12 are formed in a curved shape inward to form a cylindrical shape. The wire connecting sleeve S is securely held.

Then, inside the base 2, the lower part 12a of the movable pawl 12 is
The tip of a screw shaft 13 is rotatably connected to the screw shaft 13. The screw shaft 13 is fixed to the lower surface of the base 2 and screwed onto the screw member 14. The end of the screw shaft 13 is attached to the side wall of the base 2. The screw shaft 13 has a hexagonal end.

The compression unit 6 is configured as shown in FIG.

That is, a pair of parallel guide rails 7a and 7b are formed on the base 2 by fixing the channel material, and flanges bent inward are formed at the upper ends of the guide rails 7a and 7b. ing.

Further, elongated holes 15 as shown in FIG. 1 are formed on the side surfaces of these guide rails 7a and 7b, respectively.

And between these guide rails 7a and 7b, the base 2
A die mounting base 17 is provided which is screwed onto a screw shaft 16 which is rotatably supported inside and which is slidably formed by the rotation of the screw shaft 16.

A pair of dice is mounted on the upper surface of the die mount 17 via a separating mechanism including a guide rod 18 and a coil spring 21.
8a and 8b are attached so that they can be brought into and out of contact with each other.

These dies 8a, 8b can move to any position between the guide rails 7a, 7b together with the die mounting base 17 by the rotation of the screw shaft 16.

And in this embodiment, these dice 8a, 8b
A compression unit 6 is configured by fitting a compression tool 23, which is configured separately from the above, to the back side of the dies 8a and 8b through the elongated hole 15.

The compression tool 23 has a frame 24 formed in a substantially U shape, and has a fixed end portion 25 formed at one end of the frame 24 and a movable end portion 26 formed at the other end.

The movable end portion 26 is formed integrally with the tip of a piston 28 of a hydraulic cylinder 27 installed on the other end side of the frame 24, and can be driven in and out by the hydraulic pressure supplied to the hydraulic cylinder 27. ing.

In FIG. 3, 29 is a return spring of the piston 28.

Movable end 26 by hydraulic pressure supplied to the hydraulic cylinder 27
As the dies 8a and 8b are driven, the dies 8a and 8b are compressed and deformed by pressing the sleeve S arranged between them from the outer peripheral surface side.

An electric wire gripper 9 is installed at the tip of the sliding member 3.

Since the wire gripping portion 9 is constructed in substantially the same manner as the sleeve gripping portion 5, detailed description of the structure will be omitted, but the wire is sandwiched between the fixed pawl 9a and the movable pawl 9b. It is to be grasped.

The electric wire grasped by the electric wire grasping portion 9 and the sleeve grasping portion 5 and the sleeve S are separated and grasped on the same straight line O as shown by an imaginary line in FIG. From which a connecting hole H linearly extending on the axis is formed, and the straight line O coincides with the direction of the connecting hole H.

Since the moving direction of the sliding member 3 with respect to the base 2 is parallel to the straight line O, when the sliding member 3 approaches the base 2, the tip of the electric wire is connected to the sleeve S. It is designed to be inserted into the hole H.

The electric wire connecting sleeve compressor 1 configured in this way is
For example, it is used as follows.

FIG. 4 shows a connection work state of a distribution line on a utility pole under a live line.

31 is a utility pole, 32 is a distribution line in a live line state, 33 is a distribution line in a power failure state, and 34 is a bypass cable.

The bypass cable 34 forms an electric circuit that bypasses the distribution line 33 that has been cut to perform a predetermined operation and is in a power outage state. It is connected to the distribution line to avoid power outages other than the construction area.

Then, a simmerer rope 36 having one end fixed to the electric pole 31 is connected to the tip of the distribution line 32 in a live state to prevent the distribution line 32 from hanging down.

By the way, in such a situation, when connecting the distribution line 32 and the distribution line 33, first, the distribution line 33 in the power failure state
The sleeve S is compressed and attached to the tip of the.

Next, the work of connecting the sleeve S to the distribution line 32 in the live line state will be described with reference to FIGS.

First, the main compressor unit 1 is attached to the arm tip of the robot 41, and the sleeve S is set on the sleeve grip 5.

The work of setting the sleeve S may be performed by rotating the screw shaft 13 using an insulating driver D or the like, but in the case described with reference to FIG. 4, the sleeve S is attached to the distribution line 33 in the power failure state. Therefore, it can be performed manually (see FIG. 5 (a)).

Next, the distribution line 32 in a live state is set in the wire grip portion 9.

In this case, a tool such as an insulating driver D may be used in the same manner as described above (see FIG. 5 (b)).

In this way, if the sleeve S and the distribution line 32 are attached to the compressor main part 1, the compressor main part 1 will have the distribution lines 32 and 33.
The robot 41 can be removed because it is supported by.

Then, the screw shaft 4 is operated using the insulated driver D or the like,
The tip of the distribution line 32 is inserted into the connection hole H of the sleeve S.

In this case, the distribution line 32 and the connection hole H of the sleeve S are located on a straight line, and the sliding direction of the sliding member 3 with respect to the base 2 and the screw shaft 4 are in the same direction. The sleeve S can be inserted without trouble such as center alignment with the connection hole H.

Further, since the distribution line 32 and the distribution line 33 are drawn together by using the screw shaft 4, even if the tension is applied to the distribution lines 32, 33 by the double action of the screw, the tension can be counteracted with a small force, The burden on the operator is reduced.

After that, the screw shaft 16 is rotated by using the insulating driver D to adjust the positions of the dies 8a and 8b (see FIG. 5 (c)).

In this embodiment, since the compression tool 23 is formed separately from the compressor main unit 1, the compression tool 23 is attached to the tip of the arm of the robot 41, and The sleeve S is compressed and deformed by being positioned at the back of the dies 8a and 8b and operated by a hydraulic pressure to make a connection to the distribution line 32.

When it is necessary to form a plurality of compression points on the sleeve S, the screw shaft 16 is operated in the same manner as described above to move the dies 8a, 8b and the compression tool 23, and the work is repeated. Good.

Next, a second embodiment shown in FIG. 6 will be described. In the second embodiment, the dies 42a and 42b do not move to the left and right, but instead have a horizontally elongated shape.

That is, the dice 42a and 42b of this embodiment are the sleeve S
Has a dimension L corresponding to the length of the region to be compressed.

Therefore, according to the dies 42a and 42b, the connection between the sleeve S and the distribution line 32 can be completed by one compression operation, and the working efficiency can be improved and the first
The structure of the screw shaft 16 and the like that the embodiment has can be omitted.

However, when the dimension L is long, the compressor 23 may become heavy or the compressive force may be insufficient, so there is a limit to its application.

Next, the third embodiment shown in FIG. 7 will be described. In this third embodiment, three sets of dies 43a, 43b, 44a, 44 are used.
It is equipped with b, 45a, 45b and compression tools 46, 47, 48 for compressing these dies, respectively.

Therefore, these dies can be compressed in any order. Further, while one sleeve keeps the sleeve S in a compressed state, another die can be operated to compress the other part of the sleeve S. Therefore, there is an advantage that the occurrence of bending due to the compression of the sleeve S can be reduced.

When a plurality of sets of dies are arranged side by side in this way, it is possible to move a single compression tool and compress each die in order.

In each of the above-described embodiments, the die and the compression tool are provided separately, and the compression section is configured by using them in combination, but the present invention is not limited to this, and the fixed end of the compression tool is used. It is also possible to integrally form the compression section by connecting the section and the movable end section to the back surface of the die respectively.

(Effects of the Invention) In the present invention, as described above, the die of the compression section is movable, and the compression section and the compression tool are separated, so that the operator does not have to consider the alignment. Further, since the moving mechanism opposes the tension of the distribution line, the worker can easily insert and hold the wire in the connection hole of the sleeve, and the burden on the worker is reduced.

Further, since the present invention makes the die of the compression section movable and further separates the compression section and the compression tool, the apparatus can be used for short sleeves and particularly long sleeves. When using a long sleeve, it is usually necessary to lengthen the entire device to accommodate this sleeve. As a result, the apparatus becomes heavy, and the heavy apparatus is operated to perform hot-line work, which increases the risk of work.

However, the present invention makes it possible to move the compression die,
Furthermore, the compression part (the part that directly clamps the connection sleeve) and the compression tool (the part that further clamps the part that directly clamps the connection sleeve) are separated to reduce the weight of each.
As a result, even if a long sleeve is used, since the lightweight compression tool is operated, it is possible to prevent an increase in work risk.

[Brief description of drawings]

1 to 5 relate to a first embodiment of the present invention, and FIG. 1 is an external perspective view of a main part of a wire connecting sleeve compressor,
Fig. 2 is a sectional view taken along the line II-II of Fig. 1, Fig. 3 is a side view in which a part of a compression tool that constitutes the sleeve compressor for wire connection is cut away, and Fig. 4 is the use of the sleeve compressor for wire connection. Fig. 5 is an explanatory diagram of the situation, Fig. 5 is an explanatory diagram of how to use the sleeve compressor for connecting electric wires, and (a) is an explanatory diagram of a sleeve mounting operation.
(B) is an explanatory view of the electric wire mounting operation, (c) is an explanatory view of the adjustment of the die position and the usage state of the compression tool, and FIG.
FIG. 7 is a top view of the wire connecting sleeve compressor of the embodiment, and FIG. 7 is a top view of the wire connecting sleeve compressor of the third embodiment. M: Sleeve compressor for connecting wires, S: Sleeve, H: Connection hole,
1; Compressor main part, 2; Base, 3; Sliding member, 4; Moving mechanism (screw shaft), 5; Sleeve gripping part, 6; Compressing part, 7a, 7b; Guide means (guide rail), 8a , 8b, 42a, 42b, 43a, 43b, 44a, 44b, 45
a, 45b; Die, 9; Wire gripping part, 23, 46, 47, 48; Compressor, 3
2,33; electric wire (distribution line),

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Tetsuo Ueno 2-5-25 Izumikita, Matsuyama City, Ehime Prefecture (72) Inventor Akihiko Ishimaru 630-1 Taiyamaji Town, Matsuyama City, Ehime Prefecture (72) Inventor Hideo Yamamoto 56-4 Muremachihara, Kida-gun, Kagawa (72) Inventor Yuji Akiyama 1491-9 Fushiishi-cho, Takamatsu-shi, Kagawa (72) Hirokazu Tani 234 Tomita Higashi, Okawa-cho, Okawa-gun, Kagawa (72) Kenichi Okamoto Osaka 5-9-25 Minami-suita, Fuda-shi, Fuchu, Daito Denki Co., Ltd. (56) Reference JP-A-1-173584 (JP, A) Syokai 54-131986 (JP, U)

Claims (1)

[Claims] 1. A sleeve gripping portion for gripping a sleeve and an electric wire gripping portion for gripping an electric wire are provided at positions separated from each other through a moving mechanism, and are linearly extended from an opening of an end surface of the sleeve gripped by the sleeve gripping portion. The formed connection hole and the electric wire gripped by the electric wire gripping portion are positioned to face each other on the same straight line, and the sleeve gripping portion and the electric wire gripping portion are moved in a direction parallel to the connection hole by the moving mechanism. By approaching, by this approach, after inserting one end of the electric wire into the connection hole of the sleeve, by compressing and deforming the sleeve from the outer peripheral surface,
In the electric wire connecting sleeve compressor for connecting the sleeve to an electric wire, the sleeve gripping portion directly presses the sleeve.
A compression unit including a set of dies, the compression unit having a guide rail that allows the dies to move along the sleeve, and directly squeezes the dies while sandwiching the dies from the outside. A sleeve compressor for connecting electric wires, wherein the die has a detachable compressor.