JP2001327016A - Stringing construction method for cable and corner guide for cable stringing - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a stringing construction method for a cable, in which the working time required for a stringing operation can be shortened by a method, where a high-place working vehicle is not used and the cable which is held by a suspension wire via a hanger can be strung simultaneously between power poles and to provide a corner guide for cable stringing. SOLUTION: In the construction method, the cable A which is held by a suspension wire A1 via the hanger is strung between poles X1 to X3. A guide rope 1 and an extension rope B are strung between the poles X1 to X3. One end of the extension rope B is connected to one end of the suspension wire A1 and to one end of the cable A. The hanger is attached to the suspension wire A1 and the cable A on the side of the pole X1. A movable metal wheel 3, which is freely movable along the guide rope 1, is attached between the guide rope 1 and the suspension wire A1. The extension rope B is pulled to the side of the pole X3 from the side of the pole X1, and consequently the cable A, which held by the suspension wire A1 via the hanger, is strung simultaneously between the poles X1 to X3.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cable laying method for laying a cable between utility poles and a corner guide for a cable trolley used for laying a cable.

[0002]

2. Description of the Related Art Conventionally, a construction method as shown in FIG. 16 has been adopted as a method of connecting a cable between telephone poles.

Specifically, as shown in FIG. 16 (a), first, for example, a suspension line band b is attached to three utility poles a1, a2, a3, and then extended wire rollers are attached to the utility poles a1, a2, a3. Then, a wire c is attached to the wire roller c and a wire rope d is passed over the wire between the two diameters of the utility poles a1, a2, and a3. Next, one end of the suspension line e is connected to one end of the extension rope d that is wired as described above, and while the extension rope d is wound around the utility pole a3, the suspension wire e reaches the utility pole a3 side, and the suspension band b The suspension wire e is fixed to the power pole a.
An overhead wire is connected between 1, a2 and a3 [see FIG. 16 (b)].

[0006] Subsequently, as shown in FIG. 16 (b), the extension rope d is passed through the pulley f while attaching a plurality of pulleys f to the suspension wire e. 16
By connecting one end of the cable g shown in (c) and winding the extended rope f to the utility pole a3 side, as shown in FIG. 16 (c), the cable g is connected to the utility pole a1, a
2. Wire between a3.

Thereafter, as shown in FIG. 16 (d), the hanger h is hooked on the hanging wire e while removing the wheel & pinion f, and the hanging wire e and the cable g are integrated by the hanger h to perform the overhead wire work. finish.

[0006]

However, in the above-mentioned conventional method of wire-laying a cable, a plurality of wire-laying operations of a wire-laying operation of a suspension line e using an extension rope d and a cable g-working using a cable extension d. It is necessary to perform the operation, and there is a problem that the operation time required for the overhead line is lengthened.

[0007] Further, the work of attaching the pulley f to the hanging wire e while passing through the extended rope d as shown in FIG. 16B, and removing the hanger h while removing the pulley f as shown in FIG. 16D. The work to be hooked on the suspension line e requires an aerial work vehicle i, and the work while moving the aerial work vehicle i also takes time, and the work time is further increased in combination with the above-described problem. there were. In addition, in places with heavy traffic, etc., work with the aerial work vehicle i may be hindered and further work may be delayed. In addition, it may not only disturb pedestrians and vehicles, but also pose a danger to workers. There was a problem that it would be an accompanying task.

[0008]

According to a first aspect of the present invention, there is provided a method of wire-laying a cable held between suspension poles via a hanger between power poles. Overlay the extension rope, connect one end of the extension rope and one end of the suspension line and the cable,
Attach a hanger to the suspension wire and cable on one utility pole side, attach a movable wheel that can move along the guide rope between the guide rope and the suspension wire, and extend the extension rope from one utility pole side to the other. It is characterized in that a cable held on a suspension wire via a hanger is simultaneously wired between utility poles by pulling the cable to the utility pole side.

According to a second aspect of the present invention, the guide rope is detached from the space between the electric poles in a state where the movable wagon is hooked on the suspension line, and thereafter the ground wire is grounded. The moving wheel is detached from the suspension line from the side.

According to a third aspect of the present invention, when a cable is wired between utility poles while drawing a curve at a predetermined angle in the middle of the cable, a corner guide for cable wiring provided at a portion of the curve is used. The cable held by the movable wheel and the suspension line via a hanger is guided.

According to a fourth aspect of the present invention, there is provided a corner guide for a cable overhead wire provided at a portion of the curve when a cable is wired between utility poles while drawing a curve at a predetermined angle in the middle thereof. The corner guide for the cable overhead line is provided with a mounting bracket for fixing the power pole, and a grip portion for gripping one end of a guide rope that is wired between the power poles at both ends, and a middle portion of the movable wheel wheel. It comprises a curved guide rail for guiding the rollers, and a guide roller section for guiding the cable held on the suspension line via a hanger.

According to a fifth aspect of the present invention, there is provided a corner guide for a cable overhead line, wherein the guide rail and the guide roller portion are disposed on a base, and the base is detachably provided on the mounting bracket. is there.

[0013]

Embodiments of the present invention will be described below with reference to the drawings.

As shown in FIG. 2, the cable laying method of the present invention employs a cable A (hereinafter, collectively referred to as a cable A) which is integrally held on a suspension line A1 via a hanger A2.
And so on) between power poles.

First, a case where a cable A or the like is linearly connected between three telephone poles X1, X2, and X3, which are linearly arranged as shown in FIG. 1, will be described.

In the method of constructing the cable, the guide rope 1, a support member 2 for the guide rope for supporting the guide rope 1, a moving wheel 3, and each end of the suspension line A1 and the cable A are connected to the extension rope B. The connecting metal fitting 4 is used as a main member. First, each of these members will be described.

The guide rope 1 is used to previously wire the electric poles X1, X2, X3 with a predetermined tension when the cable A or the like is wired. 31a rolls.

The guide rope 1 has a strength capable of supporting the cable A or the like via the movable wheel 3 and is made of, for example, an aromatic polyamide fiber [Kevlar (trade name) which is light and has excellent tensile properties. )] Is used.

The guide rope supporting bracket 2 is attached to a predetermined position of the central electric pole X2, and supports a middle portion of the guide rope 1.

As shown in FIGS. 3 and 4, the specific configuration of the guide rope support bracket 2 is substantially T-shaped by a vertical portion 21a and a horizontal portion 21b extending from the middle of the vertical portion 21a. A main body portion 21 formed in a character shape, and the horizontal portion 21
and a gripping portion 22 provided at the tip of “b” and gripping the middle portion of the guide rope 1 as a main portion.

The vertical portion 21a of the main body 21 is
2, the vertical portion 21a is arranged along a predetermined height of the electric pole X2 so that the horizontal portion 21b projects forward, and in this state, a fixing member such as a dedicated band such as a chain (not shown) made of a chain or the like. With this, it is firmly attached to the telephone pole X2.

The grip portion 22 comprises a pair of grip members 22a provided on the left and right of a connecting member 22b.
2b is attached by bolts and nuts via a bracket 23 fixed to the tip of the horizontal portion 21b.

As shown in FIG. 5, the mounting structure of the connecting member 22b and the bracket 23 is fixed to the outside of the connecting member 22b and the bracket 23 by fastening the bolts and nuts 24 to the outside of the connecting member 22b and the bracket 23 via washers 25. I have. The bolt / nut 24 has a structure in which the nut 24a is provided with a loosening stopper, and by using the bolt / nut 24, the two are tightened in a slightly loosened state. With such a structure, the connecting member 2
2b can move slightly back and forth with respect to the bracket 23, so that it can follow a change in the state of the guide rope 1 when the guide rope 1 is gripped by the gripping material 22b as described later. It has been made like that.

The gripping material 22a has a gripping hole 22c formed at the upper end for gripping the guide rope 1, and is divided into front and rear portions with the center of the gripping hole 22c as a boundary. Therefore, by loosening the bolt 22d to open the grip hole 22c, inserting the guide rope 1 into the grip hole 22c, and then tightening the bolt 22d again, the guide rope 1 is stably gripped by the gripping material 22a.

In order to temporarily fix the guide rope 1 to the guide rope support bracket 2 when the guide rope 1 is connected to the base end side of the distal end of the horizontal portion 21b with respect to the gripping portion 22, the guide rope 1 is wired. Are provided. The temporary fixing ring 26 is formed by moving the rod-shaped member into a predetermined gap 26a.
The guide rope 1 can be easily arranged inside the ring through the gap 26a. In addition, the specific method of arranging the guide rope 1 will be described later.

Further, below the middle portion of the horizontal portion 21b,
Wire rope B used for overhead wire such as cable A
A receiving member 27 for supporting (see FIG. 1) is provided.
The receiving member 27 has a folded portion 2 having a lower end folded upward.
7a, and an extension rope B
It is made to hook. Therefore, the folded portion 27
a, the hanging of the extension rope B is prevented, and the extension rope B is prevented from hanging down.
The cable A serves as a guide for the extension rope B when the cable A is wired.

As shown in FIGS. 6 to 8, the movable wheel 3 has a support portion 31 on which a roller 31a is rotatably provided.
And a connecting rod 32 suspended from the support portion 31;
And a holding portion 33 provided at a lower end portion of the connecting rod 32.

The support portion 31 rotatably supports a roller 31a between support plates 31b, 31b arranged at a predetermined interval, and the movable wheel 3 is moved along the guide rope 1 by the roller 31a. It is made movable. The lower ends of the support plates 31b, 31b are formed with guides 31c, 31c extending downward in an eight-shape, and the rollers 31a, which roll on the guide rope 1 by the guides 31c, 31c, are inadvertently provided. The guide rope 1 is prevented from falling off.

The connecting rod 32 is formed in a hollow cylindrical shape, and a release rod 37 for releasing the holding of the suspension line A1 by the holding portion 33 described later is loosely fitted therein. At the upper end of the release rod 37, a ring-shaped release grip portion 3 protruding upward from the connecting rod 32 is provided.
8 are connected in series.

The holding portion 33 holds the hanging wire A1 in a detachable manner, and includes a receiving metal member 34 and a locking metal member 35.

The receiving bracket 34 is formed in a V-shape when viewed from the side, and the leading edge of a piece on the upper side is rotatable to the lower end of the arm 36 by a pin 34a fixed to the leading edge. Is pin-connected. The upper end of the arm 36
The connecting rod 32 is rotatably supported by a distal end of a bracket 32a protruding horizontally from a lower end of the connecting rod 32.

The latch 35 has an upper end connected to the release rod 37. Specifically, a bracket 37a is provided at the lower end of the release rod 37 so as to protrude outward from the connecting rod 32 through a slit 32b formed at the lower end of the connecting rod 32. Is rotatably supported at its upper end.

The lower end of the locking member 35 has a slot 3
5a is formed, and a pin 34a fixed to the leading edge of one piece of the receiving fitting 34 is slidably fitted into the elongated hole 35a.

The distal end of the locking member 35 is disposed so as to penetrate the other piece downward through an insertion hole 34b formed in the other piece below the receiving fitting 34, as shown in FIG. Hanging wire A between the stopper 35 and the bottom of the receiving member 34
1 is held.

The locking member 35 can be moved upward by an amount corresponding to the length of the elongated hole 35a by pulling the release rod 37 upward with respect to the connecting rod 32. By this movement, the suspension line A1 can be removed from the bottom of the receiving bracket 34.

The release rod 37 is urged downward by a spring 37b (see FIG. 7) interposed inside the connecting rod 32, and the urging force causes the locking fitting 35 to be connected to the receiving fitting 34. At the holding position for holding the suspension line A1. Accordingly, by pulling up the release rod 37 upward through the release handle 38 against the urging force of the spring 37b, the locking fitting 35 moves upward from the holding position as described above, and from the bottom of the receiving fitting 34. The suspension line A1 can be removed.

At this time, as shown in FIG. 9, the engaging part 35b formed at the tip of the engaging part 35 engages with the notch part 34c formed on one piece of the receiving part 34, and both engaging parts are engaged. It is designed to be held in the release position. The release of the locking member 35 from this release position is performed by the release rod 3.
7 while pulling slightly upward from the position.
This can be easily performed by rotating the receiving fitting 34 so that the fifth engaging portion 35b escapes from the notch 34c of the receiving fitting 34.

As shown in FIG. 10, the connection fitting 4 has a connection hole 41 for connecting the tip of the suspension wire A1 and a connection hole 42 for connecting the tip of the cable A at one end. Connecting hole 43 connecting the end of extension rope B to
Are formed in each of the connection holes 41-43.
1. The cable A and the extension rope B are connected via a untwisting member. At the upper end of the connection fitting 4, a locking bar 44 that can be locked between the bottom of the receiving fitting 34 of the movable wheel 3 and the locking fitting 35 is provided.

In the method of constructing a cable according to the present invention, the above-described guide rope 1, the support bracket 2 for the guide rope, the moving wheel 3, and the connecting bracket 4 are used. In addition, as shown in FIG. Conventionally used members such as 51 and 52, unwinding rollers 53 and 54, winding roller 55, and winding drum 56 are also used.

The feeding drums 51 and 52 are connected to the cable A
The delivery drum 51 performs the delivery of the cable A, and the delivery drum 52 performs the delivery of the hanging wire A1. The delivery drum 52 has a brake function for applying a back tension to the suspension line A1 to prevent the suspension line A1 from hanging down. These delivery drums 51 and 52 are mounted on a vehicle, for example, for convenience in transportation.

The pay-out rollers 53 and 54 are installed on the electric pole X1. The pay-out roller 53 guides the cable A fed from the pay-out drum 51 to the power pole X2 side, and the pay-out roller 54 feeds the cable A. The suspension line A1 extended from the drum 52 is guided to the utility pole X2 side, and the extension drum 54 is extended upward from the positional relationship between the suspension line A1 and the cable A, and the drum 53 is installed below.

The take-up roller 55 is connected to the power pole X on the opposite side.
3 to guide the extended rope B to a winding drum 56 provided near the electric pole X3 on the opposite side.

The winding drum 56 is disposed near the electric pole X3 on the opposite side as described above. The winding drum 56 winds the extension rope B at a predetermined speed to thereby connect the cable A or the like connected to the extension rope B. Is pulled toward the electric pole X3 through the movable wheel 3 and is mounted on the vehicle, for example, for convenient transportation.

Next, a method of wire-laying a cable according to the present invention using the above-described members will be described with reference to FIG.

First, a suspension line band (not shown) for fastening a suspension line A1 to be wired with a cable A to be described later on each of the telephone poles X1, X2, X3 is installed at a predetermined height position in advance, and a central telephone pole is installed. At X2, a guide rope support 2 is fixedly provided at a predetermined height position corresponding to the position of the suspension line A1 and the cable A. At this time, the middle part of the guide rope 1 is temporarily held in the temporary fixing ring 26 of the guide rope supporting bracket 2, and the middle part of the extended rope B is supported by the receiving member 27.

In addition to this, the right and left utility poles X1, X3
Then, the feeding-side rollers 53 and 54 and the winding-side roller 55 are installed at predetermined heights corresponding to the positions of the suspension lines A1 and the wires of the cable A, and the electric poles X1 and X
The feeding drums 51 and 52 and the winding drum 56 are arranged in the vicinity of 3.

Next, both ends of the guide rope 1 are stretched with a predetermined tension applied to the left and right utility poles X1 and X3 by appropriate securing means. Thereafter, at the central electric pole X2, the middle part of the guide rope 1 temporarily held on the temporary fixing ring 26 of the guide rope supporting bracket 2 is taken out from the temporary fixing ring 26, and the gripping material 22a of the gripping portion 22 is removed. After being inserted into the holding hole 22c, the holding member 22a is tightened with a bolt, and the guide rope 1 is firmly held by the holding portion 22. As a result, the guide rope 1 is connected to each telephone pole X1, X
It is connected between X3 and X3.

After the guide rope 1 is temporarily fixed to the temporary fixing ring 26 as described above, the holding portion 22 is completely gripped by the gripping portion 22, so that the fixing position of the guide rope support 2 at the telephone pole X2 is slightly shifted. Even in this case, the guide rope 1 can be easily gripped by the gripper 22.

In other words, when there is no temporary fixing with the temporary fixing ring 26, if the height position of the guide rope supporting bracket 2 is shifted, the guide rope 1 between the right and left electric poles X1, X3 is displaced.
Is stretched, the position of the middle portion of the guide rope 1 with respect to the grip portion 22 is greatly displaced, and the middle portion of the guide rope 1 cannot be gripped by the grip portion 22 due to the tension, which is prevented. For this purpose, the guide rope 1 is temporarily fixed to the temporary fixing ring 26 in advance. In this case, the guide rope 1 is connected between the left and right electric poles X1 and X3 and the central electric pole X2 in a slightly inclined state due to a shift in the height position of the guide rope support bracket 2, If the guide rope 1 is wired between the utility poles X1, X2, and X3 to such an extent that the movable wheel 3 can move smoothly with a predetermined tension, the overhead wire such as the cable A will not be hindered. is there.

In this manner, the guide rope 1 is
1, X2 and X3, the feed-out rollers 53 and 54 provided on the telephone pole X1 which is the feed-out side of the cable A
The leading ends of the hanging wire A1 and the cable A are respectively guided to the ends, and these leading ends are connected to the terminal ends of the extending ropes B arranged in advance via the connecting fittings 4.

Then, the holding portion 33 of the moving wheel 3 is locked by the locking bar 44 of the connecting fitting 4, and the roller 31a of the moving wheel 3 is arranged on the guide rope 1. The take-up roller 56 is operated to take up the extended rope B on the take-up drum 56 via the take-up roller 55.

As a result, the hanging wire A1 and the cable A connected to the extension rope B are pulled out from the telephone pole X1 to the central telephone pole X2, and together with this pulling-out operation, the operator pulls the hanger A2 to a predetermined position. The cable A is hooked on the suspension line A1 while being inserted through the cable A at intervals.

By repeating the work on the telephone pole X1,
When the cable A or the like is pulled out to the side of the utility pole X2 for a predetermined length, the holding portion 33 of the utility pole X1 is newly locked using the movable wheel 3 and held on the suspension wire A1, and
The roller 31a is arranged on the guide rope 1. The interval at which the movable wheel 3 is mounted is set to a length that allows the cable A or the like to move smoothly along the guide rope 1 by winding the extension rope B.

By continuously performing such work, the tip of the cable A or the like moves to the utility pole X2 side while the movable wheel 3 holding the suspension line A1 is guided by the guide rope 1, and at this utility pole X2, The roller 31a of the movable wheel 3 rolls on the grip portion 22 of the support member 2 for the guide rope, passes through, and is guided to the utility pole X3 side.

When the tip of the cable A or the like reaches the utility pole X3, the winding drum 56 stops winding the extension rope B, and the suspension wire A1 is connected to the utility poles X1, X2, X2.
The cable A and the like are simultaneously wired between the utility poles X1, X2, and X3 by fixing to the suspension wire band for securing the suspension wire, which has been installed in advance.

Thereafter, the guide rope 1 is loosened, and in this state, the movable wheel 3 is first removed. At this time, the moving gold wheel 3
In some cases, the roller 31a of the support portion 31 may come off from the guide rope 1. In this case, however, since the movable wagon 3 holds the suspension line A1 by the holding portion 33, the support portion 31 moves downward to the suspension line A1. It hangs in an inverted state so that it does not fall.

To remove each movable wheel 3, the release rod 37 of each movable wheel 3 is gripped by the operation rod (not shown) from the ground and the release rod 37 is connected to the connecting rod 32. This is performed by removing the movable wheel 3 from the suspension line A1 by setting the holding portion 33 to the release position by the pullout.

When the movable wheel 3 is removed in this way, the guide rope support 2 and the securing means are subsequently removed to remove the guide rope 1 from between the electric poles X1, X2 and X3, and at the same time, the feed roller 53, 54 and take-up roller 5
5 was removed from telephone poles X1 and X3, thereby
The work of wiring the cable A and the like between X2 and X3 is completed.

In the above-mentioned cable overhead wire construction method, the installation work of each member by the electric poles X1, X2, X3 and the hanger A to the suspension line A1 by the worker at the electric pole X1.
By performing the hooking operation of No. 2, the cable A and the like can be simultaneously wired between the utility poles X1, X2, and X3, and the work time required for the overhead wire can be significantly reduced. Further, since the work is performed only at the electric poles X1, X2, and X3, there is no need to use a high-altitude work vehicle, and the overhead wire work can be performed in a safe environment.

In the above-described method of wiring a cable, the cable A and the like are linearly wired between the electric poles X1, X2, and X3. As shown in FIG. 11, the electric poles X4, X
5 and X6 can be connected simultaneously.

In this case, a corner guide for cable overhead lines (hereinafter simply referred to as a corner guide) is provided at the central electric pole X5.
7 is installed. The corner guide 7 guides the above-described movable wheel 3 and the cables A and the like held by the movable wheel 3 from the utility pole X5 side to the next utility pole X6 side.
As shown in FIGS. 12 and 13, a mounting bracket 71 fixed to the utility pole X5 and a guide rail 7 provided on the mounting bracket 71 are provided.
3 and a base 72 having a guide roller portion 74.

The mounting bracket 71 has a fixed portion 71a formed in a curved shape corresponding to the outer periphery of the telephone pole X5, and a support portion 71c which extends forward from the fixed portion 71a and is arranged to support the base 72. It is composed of

The fixing portion 71a has one end of the chain band 75 fixed to one end thereof, and a screw rod 71b connected to the other end thereof. On the other hand, the other end of the chain band 75 is provided with a fastening member 75a that can be inserted into the screw rod 71b. Therefore, the chain pole 75 is connected to the telephone pole X
The fixing member 71a is firmly attached to the utility pole X5 by inserting the fastening member 75a into the screw rod 71b in a state of being wound around 5, and screwing the screw material 75b into the screw rod 71b and tightening.

The supporting portion 71c is composed of a plurality of supporting members 71d suitably combined so as to stably support the base 72, and a tip of the supporting member 71c is provided at a lower part of the middle of the supporting member 71d. The support member 7 is brought into contact with the telephone pole X5 and
An auxiliary support member 71e for supporting 1d in a horizontal state is provided.

The base 72 is a flat plate formed in a curved shape, and a plurality of portions are screwed to the support portion 71c.
2a, it is detachably attached.

The guide rail 73 has a guide portion 73a formed in a curved shape along the outer edge of the base 72 and arranged at a predetermined height by a plurality of support members 73b. The roller 31a of the moving wheel 3 described above rolls.

As shown in FIG. 15, at both ends of the guide portion 73a, grip portions 76 for gripping one end of the above-described guide rope 1 are provided via extension members 76c. As shown in FIG. 14, the grip portion 76 includes a pair of left and right grip members 76a divided in the same manner as the grip portion 22 of the guide rope support bracket 2 described above, and a grip formed on the upper end of the grip member 76a. The hole 76b is configured to hold one end of the guide rope 1.

The grip portion 76 is provided with a relatively soft wire 77 such as a wire. After the grip portion 76 grips one end of the guide rope 1,
By winding the wire 77 around one end of the guide rope 1, the holding of the guide rope 1 by the holding portion 76 is strengthened.

The guide roller portion 74 is mounted on the base 72.
A plurality of rollers 74a to 74f rotatably provided with a vertical axis at predetermined intervals along the inner edge of
It is composed of

The space between the plurality of rollers 74a to 74f and the guide rail 73 is
Is formed in a passage 7A of a moving wheel 3 guided along the moving wheel 3 and a cable A or the like guided by the moving wheel 3 so that the cable A or the like is smoothly guided by the plurality of rollers 74a to 74f. In particular, a hanger A2 having a shape larger than the hanging wire A1 and the cable A can pass through the passage 7A smoothly.

The plurality of rollers 74a to 74f are, for example, as shown in FIG.
a, 74f in the shape of a drum, two rollers 74b, 7 inside thereof
4e has a flange at the upper end, a lower end is formed in a tapered shape having a slightly larger diameter, two middle rollers 74c and 74d are formed in a barrel shape, and two rollers 74a and 74f at both ends are formed into other rollers 74b to 74d. The rollers 74a to 74f are arranged so as to be located slightly inward from the center 74e, and the shape and the positional relationship of the rollers 74a to 74f are devised so that the hanger A2 and the like can pass through the passage 7A smoothly.

The base 7 below the grip portion 76
Rollers 74g are also provided on the upper part 2, respectively, and the cables A and the like are smoothly guided to the passage 7A by the opposing rollers 74a and 74f, and are smoothly sent out from the passage 7A to the outside.

The shapes, combinations and numbers of the rollers 74a to 74g are not limited to those described above, but may be any as long as the cables A and the like can be guided smoothly.

At one end of the base 72, two posture control plates 78 for correcting the posture of the hanger A2 are provided upright on the left and right as shown in FIG. This attitude control plate 78
Is a hanger A that is moved by the winding of the extension rope B
2 is provided at one end portion on the entry side such as 2 and the posture of the hanger A2 is corrected in advance when entering the passage 7A on the base 72, so that a suspension line is used when passing through the passage 7A. The hanger A2 is prevented from dropping from A1 so that the hanger A2 and the like can pass through the passage 7A smoothly.

The attitude control plate 78 is detachably attached to both ends of the base 72 by means of screws or the like. If the feed direction of the cable A or the like changes and the approach side changes, one end of the base 72 is changed. It can be detached and attached to the other end of the base 72.

Both ends of the base 72 to which the attitude control plate 78 is attached are inclined downwardly.
b, and serves as a guide for guiding the hanger A2, such as the cable A, mainly onto the base 72 smoothly.

Above both ends of the guide rail 73, there are provided locking members 73c capable of locking hooks 79a provided at both ends of a support band 79 wound around the telephone pole X5. Therefore, the hook 79a of the support band 79 having the middle part wound around the telephone pole X5 is connected to these locking members 73.
c, and by fastening the support band 79 with a shimmer 79b provided near one end of the support band 79,
The load of the base 72 provided with the guide roller portion 74 and the guide rail 73 acting on the mounting bracket 71 is supported, so that the entire corner guide 7 does not tilt downward in combination with the above-described holding support member 74e.

When the cable A or the like is simultaneously wired between the electric poles X4, X5, and X6 while drawing a curve at a predetermined angle in the middle, the above-described corner guide 7 is installed at the central electric pole X5. , The roller 3 of the moving wheel 3
1a is guided by the guide portion 73a of the guide rail 73, and the cable A and the like held by the holding portion 33 of the movable wheel 3 are guided by the guide roller portion 74, thereby moving the cable A and the like along the curve. It is possible to smoothly guide the cable, and it is possible to simultaneously wire the suspension line A1 and the cable A in the same manner as in the above-described cable wiring method.

The cable wire construction method of this cable is the same as the wire construction method in the above-described embodiment except that the corner guide 7 is installed on the telephone pole X5, and the detailed description is omitted, and the effect by this is the same. Description is omitted.

In each of the above-described embodiments, the cable A and the like are linearly connected to the three telephone poles X1 to X3, and the cable A and the like are connected to the three telephone poles X4 to X6 in the middle (the telephone pole X5). )), The description is made of a cable which is drawn in a curve, but the number of power poles to be wired is not limited to this.
And the like can be simultaneously and linearly connected to three or more utility poles, and by combining the guide rope support metal fitting 2 and the corner guide 7, the cable A or the like can be curved into three or more utility poles in the middle thereof. Can be connected in combination with a linear overhead line while drawing.

[0081]

As described above, according to the cable laying method of the present invention, a guide rope and an extension rope are laid between utility poles, and one end of the extension rope is connected to one end of the suspension wire and the cable. At the same time, a hanger is attached to the suspension wire and the cable on one power pole side, and a movable wheel that can be moved along the guide rope is mounted between the guide rope and the suspension wire, and the extension rope is connected from one power pole side to the other. By simultaneously pulling the cable held on the suspension wire via the hanger between the power poles, the cable held on the suspension wire via the hanger is connected between the power poles by one wire work. As a result, the work time required for the overhead line can be significantly reduced. In addition, there is no need to use an aerial work vehicle only for work at each utility pole, so that the time required for the aerial work can be reduced, and the overhead wire work can be performed in a safe environment.

Further, when the cable is laid between telephone poles while drawing a curve at a predetermined angle in the middle thereof,
By providing the corner guide for the cable overhead line at the curved portion, the cable held by the movable wheel and the suspension line via the hanger can be smoothly guided by the corner guide for the cable overhead line, and the overhead wire operation is performed smoothly. be able to.

Further, the base on which the guide rail and the guide roller portion are disposed is detachably provided on the mounting bracket,
The installation and removal of the cable overhead corner guide from and to the utility pole can be easily performed, and the workability can be improved.

[Brief description of the drawings]

BRIEF DESCRIPTION OF DRAWINGS FIG. 1 is a schematic explanatory view for explaining an overhead wire construction method for a cable according to the present invention.

FIG. 2 is a diagram illustrating a state in which a cable or the like that is wired between utility poles is extended.

FIG. 3 is a side view showing a configuration of a support member for a guide rope.

FIG. 4 is a front view showing a configuration of a support member for a guide rope.

FIG. 5 is a cross-sectional view illustrating a mounting structure of a connecting member in a support member for a guide rope.

FIG. 6 is a perspective view showing a configuration of a moving wheel & pinion.

FIG. 7 is a side view showing the configuration of the moving wagon.

FIG. 8 is a front view showing the configuration of the moving wagon.

FIG. 9 is an enlarged side view showing a state in which a holding portion of the moving wheel and wheel is disposed at a release position.

FIG. 10 is a front view showing a connection fitting.

FIG. 11 is a schematic plan view showing another embodiment of the cable overhead wire method of the present invention.

FIG. 12 is a plan view showing a configuration of a corner guide for cable overhead lines.

FIG. 13 is a partially cutaway side view showing the configuration of a corner guide for cable overhead lines.

14 is a view on arrow P in FIG. 12 showing the configuration of the attitude control plate.

FIG. 15 is a view on arrow Q in FIG. 14 showing an attached state of the grip portion.

FIG. 16 is a schematic explanatory view for explaining a conventional cable laying method.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Guide rope 2 Guide rope support bracket 3 Moving wheel 31a Roller 7 Corner guide 71 Mounting bracket 72 Base 73 Guide rail 74 Guide roller section 76 Gripping section A Cable A1 Suspension line A2 Hanger B Extension rope X1-6 Electric pole

Claims (5)

[Claims] 1. A method of laying a cable held on a suspension wire via a hanger between utility poles, comprising arranging a guide rope and an extension rope between the utility poles, and one end of the extension rope and the suspension wire and Connect one end of the cable, attach a hanger to the suspension line and the cable on one of the poles, and attach a movable wheel that can move along the guide rope between the guide rope and the suspension line,
A method of wiring a cable, comprising simultaneously pulling a cable held on a suspension wire via a hanger between power poles by pulling an extension rope from one power pole side to the other power pole side. 2. After the simultaneous overhead wire of the cable is completed, the guide rope is removed from between the utility poles in a state where the movable wheel is locked to a suspension line, and thereafter the movable wheel is removed from the ground line from the ground side. 2. The method according to claim 1, wherein the cable is a wire. 3. When the cable is laid between utility poles while drawing a curve at a predetermined angle in the middle of the cable, a corner guide for the cable trolley provided at a part of the curve connects the movable wheel and the suspension line with a hanger. 3. The method according to claim 1, wherein the held cable is guided. 4. A corner guide for a cable overhead line provided at a location of a curve when a cable is wired between utility poles while drawing a curve at a predetermined angle in the middle thereof, wherein the corner guide for a cable overhead wire is A mounting bracket for fixing to a utility pole, a grip portion provided at both ends for holding one end of a guide rope that is laid between the utility poles, a curved guide rail that guides a roller of a movable wheel at an intermediate portion, and a suspension line And a guide roller section for guiding the cable held through a hanger. 5. The corner for a cable overhead line according to claim 4, wherein said guide rail and said guide roller portion are disposed on a base, and said base is detachably mounted on said mounting bracket. guide.