JP2003189432A - Inserting device of wire protector into overhead wire - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an inserting device of a wire protector, capable of easily fitting a protector, which protects an overhead wire from being brought into contact with trees or the like, to the overhead wire. <P>SOLUTION: In this inserting device of wire protector which inserts and fits the protector fitted by a fastener and formed into a cylindrical shape to the overhead wire, a plurality of rollers are provided on both surfaces in the transverse direction of a base in which the length of transverse direction is longer than that in the vertical direction so that part of the rollers may protrude the outside of the base. One end part in the transverse direction thereof provided with the rollers is formed so as to be easily inserted into the inside of the protector, the other end part thereon is formed so as to be larger than the inner diameter of the protector, and the base with the rollers is inserted into the inside of the protector from one side thereof and is moved to the other side. Thus, the rollers expand the inner wall by being brought into contact with the inner wall of the protector so as to open the fastener of the protector. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention can easily attach a protector mounted on an overhead wire to prevent the overhead wire from contacting a tree or the like and destroying the insulating layer of the wire. The present invention relates to a device for inserting an electric wire protector into an overhead electric wire.

[0002]

2. Description of the Related Art When wiring an overhead wire, the surrounding environment is maintained and obstacles that may damage the overhead wire are removed before installation. As it grows and comes into contact with the overhead wire, there is a risk of damaging the insulating layer of the overhead wire and causing an accident such as electric leakage or power failure. In order to prevent such an accident, the overhead wire C is connected to the wire protector P as shown in FIG.
Is attached to prevent damage from the tree T.

As shown in FIG. 7, a protector P attached to an overhead wire has a surface 76 mainly black.
The inside 77 is formed of white or yellow, and when the protector P is damaged by a tree T or the like, the surface 7 of the protector P is
The color of 6 changes from black to white or yellow of the inside 77 to inform the protector when it is time to replace it.

As described above, the work of mounting the protector P on the overhead wire C is frequently performed after the wire is installed. As shown in FIG. 7, the protector P to be attached to the overhead wire C is formed by bending a plate having a predetermined length (for example, 2 m) in which one surface 76 is black and the other surface 77 is white or yellow into a cylindrical shape, and the joint end surface is formed. Are connected by an uneven fastener 71 provided at the end to form a cylinder. As the fastener 71, a convex male die 72 is formed at one end and a concave female die 73 is formed at the other end, and the male and female are fitted and fixed, that is, the fastener 7
1 is tightened to form a tubular protector P. In order to attach the protector P to the overhead wire C, an operator manually opens the fastener 71 of the protector P, covers the overhead wire C while keeping the open state, and after the fastener 71,
I was going to tighten it.

[0005]

However, in the above method, since the plastic resin forming the protector P imparts strength to protect the electric wire, it is necessary to open the fastener 71 and maintain its state. In addition, it takes time to connect the fasteners 71 after covering the overhead wire, and since it is a work at a high place, a high degree of safety is required for the work. To
Even a skilled worker has a limit to the number that can be installed in one day,
The work was accompanied by a high degree of fatigue. SUMMARY OF THE INVENTION The present invention solves the conventional problems and provides a wire protector loading device that can safely and efficiently mount a wire protector on an overhead wire.

[0006]

According to a first aspect of the present invention, there is provided an electric wire protector insertion device for inserting and mounting a tubular protector fitted with a fastener into an overhead wire. Is provided with a plurality of rollers on both sides in the horizontal direction of the substrate whose horizontal direction is longer than the vertical direction such that a part of the rollers protrudes to the outside of the substrate, and one end in the horizontal direction where the rollers are provided is the protector. By forming the other end portion larger than the inner diameter of the protector into a size that can be easily inserted into the protector, inserting the substrate with the roller into the protector from one side, and moving the substrate with the roller to the other, The roller protector is configured to contact the inner wall of the protector and expand the inner wall of the protector to open the fastener of the protector.

According to a second aspect of the present invention, there is provided an electric wire protector inserting device for inserting and mounting a tubular protector fitted with a fastener into an overhead wire, wherein the inserting device has a lateral direction longer than a longitudinal direction. A plurality of rollers are provided on both sides of the substrate in the lateral direction such that a part of the rollers protrudes to the outside of the substrate, and one end portion in the lateral direction where the rollers are provided can be easily inserted into the protector. In addition, the other end portion is formed with a roller-equipped substrate formed to be larger than the inner diameter of the protector, and a mounting member for attaching the roller-equipped substrate to the aerial wire so as to have a predetermined angle with the aerial wire, The roller-attached board is fixed to the overhead wire by the mounting member, the protector is inserted from one side of the roller-attached board, and the protector is pushed toward the overhead wire to push down the roller. There extends the protector inner wall in contact with the protector inner wall, an insertion device of the wire protector to overhead conductors, characterized in that the protector is constructed so as to be able to insert the overhead conductors while open the fastener portion of the protector.

According to a third aspect of the present invention, there is provided an electric wire protector inserting device for inserting and mounting a tubular protector fitted with a fastener into an overhead wire, wherein the inserting device has a lateral direction longer than a longitudinal direction. A plurality of rollers are provided on both sides of the substrate in the lateral direction such that a part of the rollers protrudes to the outside of the substrate, and one end portion in the lateral direction where the rollers are provided can be easily inserted into the protector. In addition, a substrate with a roller, the other end of which is formed larger than the inner diameter of the protector, a mounting member that attaches the substrate with a roller to the overhead wire so as to form a predetermined angle with the overhead wire, and a roller The protector is located in front of the board and comprises a compression roller that reduces the diameter of the protector from the outside. By inserting the protector and pushing the protector toward the overhead wire, the roller contacts the inner wall of the protector to expand the inner wall of the protector, and while opening the fastener part of the protector, the protector is inserted into the overhead wire and inserted into the overhead wire. An apparatus for inserting an electric wire protector into an overhead electric wire, characterized in that the fastener portion of the protector is compressed and reduced in diameter by the compression roller to close the fastener.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described in detail below with reference to the drawings. The same parts as those described above are designated by the same reference numerals, and detailed description thereof will be omitted. FIG. 1 shows an embodiment of the present invention, in which 1 is an insertion device of an electric wire protector of the present invention in which a protector P is inserted into and mounted on an overhead wire C, the insertion device 1 having rollers 12 to 16 It is composed of a substrate 11. The roller-equipped substrate 11 that constitutes the insertion device 1 is a mechanically strong substrate 17 whose lateral direction is longer than its longitudinal direction, and a plurality of rollers 12 to 16 (on the illustrated roller The number is 5
Although it is a set, it is needless to say that it can be appropriately increased or decreased depending on the type of protector. The same shall apply hereinafter) and. As shown in the drawing, the rollers 12 to 16 have a part of the outer circumference of the substrate
It is provided so as to protrude to the outside of 7.

The substrate 17 on which the rollers 12 to 16 are provided is formed in a trapezoidal shape, and one end portion 18 (narrower end portion) in the lateral direction has a size that can be easily inserted into the protector P, that is, In the illustrated embodiment, the width between the upper and lower rollers 12 and 12 located at the end portion 18 is equal to or smaller than the inner diameter of the protector P. On the other hand, the other end 19 (wider end) is configured to be larger than the inner diameter of the protector P. That is, in the illustrated embodiment, the width between the upper and lower rollers 16 located at the end portion 19 is configured to be larger than the inner diameter of the protector P. In order to insert the substrate 11 with rollers into the protector P and pull it out, a pulling member 20 such as a rod, a thin wire or a string is attached to the substrate end portion 18, and the substrate 11 with rollers is pulled out from the protector P by the pulling member 20. To configure.

In order to mount the protector P on the overhead wire C using the roller-equipped substrate 11, as shown in FIG. 3, first, the narrow end 18 of the roller-equipped substrate is attached to the protector P.
Insert inside. At this time, the rollers 12 and 12 contact the inner wall of the protector P. Substrate with roller 1 in this state
When the pulling member 20 provided in 1 is pulled and the substrate 11 with rollers is further pushed into the protector P, the outer circumferential interval of the rollers facing each other gradually becomes wider, so that the substrate 11 with rollers advances from the rollers 13 to 16. Accordingly, the inner wall of the protector P is gradually spread out from the end portion where the substrate 11 with the roller is inserted, and the male mold 72 and the female mold 7 of the fastener 71 are expanded.
3 is separated, and the separated gap gradually expands to form the gap 7
4 (see FIG. 7) opens wider than the outer diameter of the electric wire C.

When the gap 74 opens wider than the outer diameter of the electric wire C, the gap 74 of the protector P is pressed against the electric wire C. Then, while the gap 74 of the protector P is pressed against the electric wire C, the substrate 11 with rollers is further protected. By moving the roller-equipped substrate 11 from the other end of the protector by moving it toward the other end of P, the rollers 16 at the rear end contact the inner wall of the protector P and expand the inner wall of the protector P. Can be covered on the electric wire C. Since the protector P attached to the electric wire C returns to the tubular shape by itself, when the protector P is put on the electric wire C, the fastener 71 is manually tightened to complete the insertion of the protector P into the overhead electric wire C. If necessary, the protector P is fixed to the electric wire C with a tape or the like not shown.

FIG. 2 shows a second embodiment of the present invention, in which 2 is an electric wire protector insertion device of the present invention. In this embodiment, the roller-equipped substrate 21 is formed of a rectangular plate having a high mechanical strength. A plurality of rollers 22 to 26 having different outer diameters are attached to both lateral surfaces of the substrate 27.
As shown in the drawing, each of the rollers is provided so that a part of the outer periphery thereof protrudes outside the substrate 27.
The size (outer diameter) of 26 is such that the end portion 28 on the side to be inserted into the protector P can be made smaller so that it can be easily inserted into the protector P, that is, the end portion 28 in the illustrated embodiment.
The width between the upper and lower rollers 22 located at is equal to or smaller than the inner diameter of the protector P.

On the other hand, the roller 2 provided at the other end 29
The outer diameters of the protectors P and 26 are increased so that the protector P is spread by the rollers 26 and 26, that is, the width between the upper and lower rollers 26 and 26 located at the end 29 in the illustrated embodiment is the inner diameter of the protector P. It is made larger. The method of mounting the protector P on the overhead wire C using the substrate with roller 21 is the same as that in the first embodiment, and therefore detailed description thereof is omitted. In order to insert the substrate 21 with the roller into the protector P and pull it out, a pulling member 20 such as a rod, a thin wire or a string is attached to the end 28 of the substrate, and the substrate 21 with the roller 21 is attached to the protector P by the pulling member 20. It is configured to be pulled out from.

FIG. 4 shows a third embodiment of the present invention, in which an electric wire protector insertion device 4 includes a substrate 11 with a roller shown in the first embodiment, and a mounting member 41 for fixing the substrate 11 with a roller to an overhead wire C. The substrate 11 with rollers is mounted on the mounting member 41 so that when the substrate 11 with rollers is mounted on the overhead wire C by the mounting member 41, a predetermined angle α is generated between the substrate 11 with rollers and the overhead wire C. It is attached at a predetermined angle.

As shown in FIG. 4, the mounting member 41 includes two operating rods 42 and 43.
And the roller-attached substrate 11 is attached to one operating rod 43 at a predetermined angle α (it is also possible to attach it so that the angle can be arbitrarily changed), and the operating rod 42, At the tip of 43, recesses 44, 44 for holding the electric wire C are provided. Substrate with roller 11
As shown in FIG. 4, the state in which the mounting member 41 attached with is attached to the overhead wire C is such that the substrate 11 with rollers is attached to the overhead wire C at a predetermined angle α.

To attach the protector P to the overhead wire C, the insertion device 4 of the present invention is attached to the overhead wire C as described above, the protector P is inserted from one side of the roller-attached substrate 11, and the protector P is attached to the overhead wire C. Push it toward.
By pushing in the protector P, the rollers 12 to 16 sequentially contact the inner wall of the protector P to expand the inner wall of the protector P, open the fastener 71 of the protector P, and approach the overhead wire C. At the overhead wire C, the fastener portion Since the opened gap 74 is larger than the outer diameter of the electric wire C, the protector P is inserted into the overhead electric wire C as it is and attached by pressing the protector P as it is.

After the protector P is inserted into the overhead wire C, the fastener 71 is manually tightened to manually fix the overhead wire C.
The insertion of the wire protector P into the wire is completed. In the above-described embodiment, an example in which the roller-equipped substrate of the first embodiment shown in FIG. 1 is used has been described, but the roller-equipped substrate 21 of the second embodiment shown in FIG. Of course

FIG. 5 shows a fourth embodiment of the present invention, in which the compression roller 51 is provided in the third embodiment described above. That is, the compression roller 51 is composed of a pair of rollers 52, 52 as shown in FIG.
As shown in (b), each roller 52 is attached to the operating rods 42 and 43 of the attachment member 41 by the connecting rod 53, and at the same time the substrate 11 with rollers is attached to the overhead wire C, the pair of compression rollers 51 are also attached to the overhead wire C. It is configured to be attached to. The outer peripheral surface of the pair of rollers 52 of the compression roller 51 is curved like a drum and is attached so as to surround the overhead wire, and the protector P can be inserted between the overhead wire C and the pair of rollers 52, 52. It is designed so that a gap is formed.

In order to mount the protector P on the overhead wire C by the wire protector insertion device 5, after mounting the protector P on the overhead wire C through the substrate 11 with rollers as described above, the protector P is replaced with the compression roll 51. By passing it between the overhead wire C and the overhead wire C, the protector P is compressed and the fastener 71 portion is tightened. When the protector P exits the pair of compression rollers, the fastener 71 is tightened and the protector P is attached to the overhead wire C.

In the protector inserting apparatus of the present invention, a plurality of rollers are sequentially provided on the substrate 17 or 27 so that the width between the outer circumferences thereof is widened in the lateral direction. Therefore, the roller-attached substrate 11 or 21 is inserted into the protector P. Even if the roller rotates, the frictional force with the inner wall of the protector P is small, and the fastener 71 of the protector P can be opened with a small force and the opening width of the fastener portion can be widened. Can be attached to the overhead wire C by simply inserting and pulling it out into the protector P, and therefore the work is easy and the installation work can be completed in a short time.

In the above-mentioned protector mounting work, the protector P is attached to the overhead wire C by inserting and pulling out the substrate 11 or 21 with the roller into the protector P. The wire protector inserting device of the present invention shown in FIG. 4 or FIG. Is attached to the overhead electric wire C, the protector C is inserted into the substrate 11 or 21 with the roller, and the protector P is pushed toward the electric wire C, so that the rotation of the roller causes a small frictional force between the inner wall of the protector P and a small force. The fastener 71 of the protector P can be opened and the protector P can be attached to the overhead wire C by widening the opening width of the fastener portion.

Further, the work for attaching the protector involves a risk of working at a high place, but by using the wire protector inserting device of the present invention, the safety of the work becomes extremely high, and the skill is not so required for the work. Therefore, the installation work progresses, and the high degree of fatigue associated with the work is eliminated.

[0024]

As described above, the overhead wire C according to the present invention
By using the protector P insertion device to the overhead wire C, the protector P can be easily attached to the overhead wire C with a small amount of force, and work at height can be performed safely and efficiently. Further, since the main part of the wire protector insertion device of the present invention is composed of the combination of the substrate and the roller, it can be provided at a low cost and has an excellent effect that it is extremely easy to handle. .

[Brief description of drawings]

FIG. 1 is an explanatory diagram showing a first embodiment of the present application.

FIG. 2 is an explanatory diagram showing a second embodiment of the present application.

FIG. 3 is an explanatory diagram showing a situation in which the protector is attached to the electric wire in the first embodiment of the present application.

FIG. 4 is an explanatory view showing a third embodiment of the present application, in which (a)
Is a plan view, (b) is a front view, and (c) is a side view of the wire protector insertion device.

FIG. 5 is an explanatory view showing the fourth embodiment of the present application, in which (a)
Is a plan view, (b) is a front view, (c) is a side view of the wire protector insertion device, and (d) is a side view of the protector compression roll.

FIG. 6 is an explanatory view showing a state in which a protector is attached to an overhead wire.

FIG. 7 is an explanatory diagram of a protector attached to the overhead wire.

[Explanation of symbols]

1, 2, 4 Electric wire protector insertion device of the present invention Substrate with rollers 11 and 21 12 to 16 rollers 17, 27 substrate 20 Towing member 22-26 rollers 41 Mounting member 51 compression roller C overhead wire P protector 71 Fastener

Continued front page    (72) Inventor Take Fujimoto             1-8 Shinmoji, Moji-ku, Kitakyushu, Fukuoka Prefecture               Kyushu Furukawa Electric Co., Ltd. (72) Inventor Takenari Sato             2-6-1, Marunouchi, Chiyoda-ku, Tokyo             Kawa Electric Industry Co., Ltd. F-term (reference) 5G367 BB04 BB11

Claims (3)

[Claims] 1. An insertion device of a wire protector for inserting and mounting a tubular protector fitted with a fastener into an overhead wire, wherein the insertion device has both lateral sides of a substrate whose lateral direction is longer than its longitudinal direction. Is provided with a plurality of rollers so that a part of the rollers protrudes to the outside of the substrate, and one end portion in the lateral direction where the rollers are provided has a size such that it can be easily inserted into the protector. The end portion is formed to be larger than the inner diameter of the protector, the substrate with the roller is inserted into the protector from one side thereof, and the substrate with the roller is moved to the other, whereby the roller contacts the inner wall of the protector to expand the inner wall, A device for inserting a wire protector into an overhead wire, which is configured to open a fastener of the protector. 2. An electric wire protector insertion device for inserting and mounting a tubular protector fitted with a fastener into an overhead wire, wherein the insertion device has both lateral sides of a substrate whose lateral direction is longer than its longitudinal direction. Is provided with a plurality of rollers so that a part of the rollers protrudes to the outside of the substrate, and one end portion in the lateral direction where the rollers are provided has a size such that it can be easily inserted into the protector. The roller-equipped substrate has an end portion formed larger than the inner diameter of the protector, and a mounting member that attaches the roller-equipped substrate to the overhead wire so that the substrate has a predetermined angle with the overhead wire. Fix the attached board to the overhead wire,
The protector is inserted from one side of the substrate with the roller, and the roller contacts the inner wall of the protector by pushing the protector toward the overhead wire to expand the inner wall of the protector,
An apparatus for inserting a wire protector into an overhead wire, wherein the protector can be inserted into the overhead wire while opening a fastener portion of the protector. 3. A wire protector insertion device for inserting and mounting a tubular protector fitted with a fastener into an overhead wire, wherein the insertion device has a lateral direction longer than a longitudinal direction on both sides of a substrate. Is provided with a plurality of rollers so that a part of the rollers protrudes to the outside of the substrate, and one end portion in the lateral direction where the rollers are provided has a size such that it can be easily inserted into the protector. A substrate with a roller whose end is formed to be larger than the inner diameter of the protector, a mounting member for attaching the substrate with a roller to the aerial wire so as to form a predetermined angle with the aerial wire, and a position in front of the substrate with the roller. Then, the protector is composed of a compression roller that is reduced in diameter from the outside, the substrate with a roller is fixed to the overhead wire by the mounting member, and the protector is inserted from one side of the substrate with the roller, By pushing the protector toward the overhead wire, the roller contacts the inner wall of the protector to expand the inner wall of the protector, insert the protector into the overhead wire while opening the fastener part of the protector, and insert the fastener part of the protector inserted into the overhead wire. A device for inserting an electric wire protector into an overhead electric wire, characterized in that the fastener is configured to be compressed and reduced in diameter by the compression roller.