JP2002017011A - Aerial line stringing method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an aerial line sringing method which increases both the efficiency of work and workability by performing stringing, applying tension (back tension) in the direction opposite to the direction of drawing an aerial line and a drawing rope, to prevent drooping of the drawing rope and aerial line such as a messenger wire, a cable, etc., and using an anti-back sheave and a sheave with a sensor. SOLUTION: Back tension is applied to the drawing rope 5 and the messenger wire 7 by a wire feeding appliance 9 fitted with a multiple brake, and the drawing rope 5 and the messenger wire 7 are hung up in a semi-tightened state by the anti-back sheave and the sheave with a sensor, and are drawn while keeping the both in the semi-tightened state.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an overhead wire laying method in which an overhead wire such as a messenger wire or a cable (hereinafter simply referred to as an overhead wire) is laid aerial and laid.

[0002]

2. Description of the Related Art A conventional overhead line laying method will be briefly described. 44, 45, and 46 are explanatory diagrams illustrating an example of a conventional overhead line laying method, and FIG. 47 is an explanatory diagram illustrating hanging of the overhead line generated by the overhead line laying method using an anti-back metal wheel. The overhead line laying method to be described is an overhead line laying method in a case where another messenger wire is newly stretched and a cable is jointly stretched using an electric pole, a messenger wire, a cable, and the like of an existing line.

As shown in FIG. 44 (a), an existing messenger wire 500 is mounted on a large number of electric poles (only the electric poles 510 and 520 are shown in the figure) in an existing line, and is in a tight state (constant tension). In a stretched state). The existing messenger wire 500 is stretched from a utility pole 510, which is a starting pole, to a terminating pole, not shown.
A plurality of cable hangers 530 are hung on the existing messenger wire 500.
An existing cable 540 is laid.

[0004] An operation of jointing another cable to such an existing line will be described. First, a worker mounts a wheel on a bucket truck (not shown). At the electric pole 510 which is the starting pole as shown in FIG.
And the existing messenger wire 500 and telephone pole 520
A second gold wheel 560 is attached to the vehicle. In addition, the pulling line 570 is also laid at the same time as the attachment of the gold wheels. The distance between the two wheels is approximately 5 to 6 m.
It does not sag. This mounting operation is also continued up to a terminal post (not shown).

After the work is completed, as shown in FIG.
The tip of 70 is idle. In this specification, the leading end of the pulling line 570 on the starting end column side is defined as an end,
In addition, the description will be made with the leading end of the drawstring 570 on the end column side as the starting end.

[0006] As shown in FIG. 44 (c), at the end side of the pulling line 570, the pulling line 570 is attached to the start end of the messenger wire 590 via the untwist 580. The messenger wire 590 is housed in the wire drum 600 in a wound state, and the untwisted 580 is stored in the wound state and has a curled messenger wire 590.
It has a function to correct kinks.

[0007] The leading end of the towline 570 is connected to a not-shown captor-in-drum (to be described using an abbreviated candler) as a towing device. Candra begins towing the towline 570 and pulls the towline 57.
0, untwist 580 and messenger wire 590
Is pulled to the end post. Messenger wire 590
Is laid from the start post to the end post. Thereafter, the work of mounting the messenger wire 590 is performed on each utility pole.
After the mounting, the messenger wire 590 is in a tight state as shown in FIG. Messenger wire 59
The zeroing is done in this way.

Subsequently, as shown in FIG. 45 (b), the suspension rider 610 is installed on the messenger wire 590 in a tight line state. The suspension vehicle 610 is configured to move along the messenger wire 590 so that an operator can use the suspension vehicle 610.
It is designed to allow you to work at high altitudes on the ground. The worker riding the undercarriage device 610 attaches the No. 4 wheel 630 and the No. 2 wheel 640 one by one while crossing the tow line 620 and moves to the terminal pole side.

After the work is completed, the starting end of the cable 660 is attached to the end of the drawstring 620 via the untwist 650.
The untwist 650, like the messenger wire 590, is stored in a wound state on the cable drum 670 and corrects the twist of the cable 660 having a curl. At the start end side of the tow rope 620, it is attached to a candler (not shown). The candler sequentially pulls the towline 620 as shown in FIG. 45 (c). Then, as shown in FIG. 46 (a), the cable 660 is laid from the start end column to the end column.

The worker gets on the undercarriage 610 as shown in FIG. 46 (b), removes the No. 4 wheeler 630 and the No. 2 wheeler 640, and attaches the cable 660 to the cable hanger 680. Hang the cable hanger 680 on the wire 590. This work is performed from the end pole to the start pole, and a line name tag indicating the type of the cable is hung on the slag of the telephone pole which is installed at both ends of the pole.
As shown in (c), the wiring is completed to complete the cable laying.

[0011] In the case of a normal cable laying which is not laid on an existing track, the difference is that a main rope is stretched in place of the existing messenger wire, but the other points are the same. Is the same. The conventional overhead line laying method was like this.

[0012]

However, in the conventional overhead line laying method, it is necessary to mount a wheel in every 5 to 6 m, and there is a disadvantage that a large amount of wheel is required for laying the overhead line. In addition, there is a drawback that it is difficult to lay a long cable (for example, 3000 m) or a messenger wire when the number of hand-held wheels is small.
In addition, there are many work steps of attaching and detaching a large number of wheels, and there is a disadvantage that workability is not good. In addition, there is a disadvantage that it takes time until the end of the work due to poor workability, and the labor cost increases. Further, there is a drawback that the number of times the worker who rides on the spacecraft to attach and remove the gold wheel works at a high place, and the safety of the work is low.

There is also a problem that the messenger wire or the cable hangs when the wheel is forgotten to be mounted on the way or when the distance between the wheel and the wheel exceeds 5 to 6 m. Once the messenger wire or cable begins to sag, the sag will accelerate and fall, causing danger to workers, the general public and vehicles underneath the messenger wire or cable, or the messenger wire or cable drum rapidly There was a danger that workers rotating near the drum could be dangerous.

[0014] Further, there is a wire breaker with multiple brakes for braking the drum of the messenger wire or cable, but there is a danger to workers in the vicinity because it is impossible to brake the drum that has been rotated due to acceleration. There is a drawback that it extends. Further, when the end of the messenger wire or cable comes off the drum, there is a disadvantage that the messenger wire or cable jumps and a worker near the drum is in danger.

[0015] In addition, there is an anti-back wheel in which the overhead wire or the tow moves in only one direction and the movement of the overhead wire or the tow in the opposite direction. I have. For the anti-back wheel, see
No.-351406 is also disclosed. The present inventor has also invented an anti-back wheel that solves the problems of the conventional anti-back wheel, and has disclosed in Japanese Patent Application Laid-Open No. Hei 11 (1995) -11086.
Patent Application No. 348379 has been filed. Also, a wheel with a sensor for preventing movement in the direction of extension when the wire is broken in front of the wheel in the direction of extension has been invented.
No. 7 has filed a patent application.

In the construction of the overhead wire using the anti-back wheel,
As shown in FIG. 47 (a), when the overhead wire is laid, the overhead wire can be moved in the forward direction of the overhead wire feed, and the overhead wire cannot be moved in the reverse direction of the overhead wire feed, so that a situation in which the overhead wire returns backward is prevented. You. However, even in the case of using an anti-back wheel, the occurrence of droop cannot be prevented. As shown in FIG. 47 (b), it is impossible to prevent the overhead wire from being sent and hanging down in the overhead wire feed forward direction. There is a drawback that the messenger wires and cables may still hang down when only the anti-back car is used. In addition, it is conventionally difficult to reduce the number of wheel wheels because the number of wheel wheels decreases when the wheel wheel hangs.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and a tension in a direction opposite to the extending direction of the overhead wire or the drawstring in order to prevent the overhead wire such as a messenger wire or a cable or the dropping rope from hanging down. (Hereinafter referred to as “back tension”), and by using an anti-back wheel and a wheel with a sensor to lay the wire, an overhead wire laying method that achieves both improved work efficiency and improved workability. The purpose is to provide.

[0018]

In order to solve the above-mentioned problems, an overhead wire laying method according to claim 1 is a method of laying an overhead wire such as a messenger wire or a cable in an overhead wire from a start end column to an end column. A trolley is laid over the anti-back wheel and sensor wheel attached to each telephone pole, and an overhead wire is attached to one end of the pull line.
A predetermined tension in the direction opposite to the feed direction of the overhead line and the pulling line is applied to the overhead line and the pulling line, and while maintaining the quasi-tension state, the pulling line is pulled and the overhead line is laid. And laying overhead lines.

In the overhead wire laying method according to the second aspect, in the overhead wire laying method in which an overhead wire such as a messenger wire or a cable is stretched aerial, an anti-back metal attached to a power pole between a start end column and an end column. The car and the sensor-equipped wheel are passed through the first and second lanyards of the two articles and are negotiated together. After the start end of the messenger wire is attached to the first lanyard, the first lanyard and the messenger wire are connected. Pulling the messenger wire by pulling it in the tension state, mounting the messenger wire on the utility pole, attaching the starting end of the cable to the second rope, and pulling the second rope and the cable in the quasi-tension state It is characterized by arranging a cable, laying a cable by mounting a cable hanger on a messenger wire and mounting a cable hanger on the messenger wire.

In the overhead wire laying method according to the third aspect, in the overhead wire laying method for extending an overhead wire called a messenger wire or a cable overhead, two sets of anti-wires attached to the respective electric poles from the starting pole to the ending pole are provided. The first and second messenger wires are attached to the first and second trolleys by passing the first and second trolleys through the back wheel and the wheel with sensor. Is pulled in the semi-tension state, the messenger wire is laid, the messenger wire is mounted on the telephone pole, and the starting end of the cable is attached to the second pulling line, and then the second pulling line and the cable are pulled in the semi-tension state. Then, the cable is laid and the overhead line is laid.

In the overhead wire laying method according to claim 4,
In an overhead wire laying method of extending an overhead wire called a messenger wire or a cable overhead, a first hanger is passed through a coil hanger having one end fixed to a utility pole, an anti-back metal wheel attached to the power pole and a metal wheel with a sensor. A rope is laid, a predetermined tension in a direction opposite to a feed direction of the first rope is applied to the first rope to bring the first rope into a semi-tension state, and a clip fixed to the first rope is attached to the clip. Attach the other end of the coil hanger, move the clip together with the first pull cord to extend the coil hanger to the adjacent utility pole, fix the other end of the coil hanger to the adjacent utility pole, and suspend the coil hanger by the first pull cord. A closed space is formed between the utility poles by a coil hanger, and a messenger wire and a second lanyard are attached to the end of the first lanyard to maintain a quasi-tight line state. The messenger wire and the second pull cord are laid together while passing through the closed space of the coil hanger, the messenger wire that is laid is mounted on a telephone pole, the coil hanger is suspended from the messenger wire, and the end of the second pull cord is laid. A cable is laid so as to pass through a closed space of a coil hanger by attaching a starting end of the cable, and the cable is laid in a coil hanger suspended from a messenger wire.

In the overhead wire laying method according to the fifth aspect, in the overhead wire laying method for extending an overhead wire such as a messenger wire or a cable overhead, a coil hanger having one end fixed to a utility pole and a double anti-wire attached to the utility pole are provided. The back wheel and the wheel with the sensor are passed through the first and second pull lines of the two articles and are negotiated together.
After the leading end of the messenger wire is attached to the towline, the first towline and the messenger wire are pulled in a semi-closed state, the messenger wire is laid, and the messenger wire is mounted on a utility pole, and the second in the semi-closed state. Attach the other end of the coil hanger to the clip fixed to the towline, move the clip together with the second towline to extend the coil hanger to the adjacent electric pole, fix the other end of the coil hanger to the adjacent electric pole, and use the coil hanger between the electric poles. A closed space is formed and a coil hanger is hung from the messenger wire, and the beginning of the cable is attached to the end of the second pull cord, and the cable is extended toward the end column so that the cable passes through the closed space of the coil hanger. It is characterized in that a cable is arranged in a suspended coil hanger and an overhead wire is laid.

In the overhead wire laying method according to the sixth aspect, in the overhead wire laying method for extending an overhead wire such as a messenger wire or a cable overhead, a coil hanger having one end fixed to a power pole and a double anti-wire attached to a power pole are provided. The back wheel and the wheel with the sensor are passed through the first and second pull lines of the two articles and negotiated together.
The towline is fixed to the utility pole and stretched, the other end of the coil hanger is attached to the clip fixed to the first towline in the quasi-tension state, the clip is moved together with the first towline, and the coil hanger is moved to the adjacent utility pole. After extending, the other end of the coil hanger is fixed to the adjacent power pole to form a closed space by the coil hanger between the power poles, the coil hanger is suspended from the second pulling rope, and the first messenger wire is attached to the end of the first pulling rope. The towline and the messenger wire are pulled in a semi-tension state, the messenger wire is laid, the messenger wire is mounted on the mounting pole of the telephone pole, and the coil hanger is suspended from the messenger wire instead of the second towline. (2) After attaching the starting end of the cable to the end of the cord, extend the cable to the end post so that it passes through the closed space of the coil hanger. Characterized by laying the overhead line messenger wire hung in Koiruhanga by placing the cable.

In the overhead wire laying method according to the present invention, in the overhead wire laying method for extending an overhead wire such as a messenger wire or a cable overhead, a coil hanger having one end fixed to a power pole and a triple anti-pole attached to a power pole are provided. After passing the first pull cord, the second pull rope, and the third pull rope of the article into the back pull wheel and the sensor pull wheel, the first pull rope, the second pull rope, and the third pull rope are laid together. (1) The traction cable and the messenger wire are pulled in a quasi-tension state, the messenger wire is laid, the messenger wire is mounted on the telephone pole, and the second traction cable and the cable are attached to the second traction cable. Tow the cable by pulling it in the semi-tension state, and
Attach the other end of the coil hanger to the clip fixed to the towline, move the clip together with the third towline to extend the coil hanger to the adjacent electric pole, fix the other end of the coil hanger to the adjacent electric pole, and use the coil hanger between the electric poles. A closed space is formed, a cable is arranged on a coil hanger suspended from a messenger wire, and an overhead wire is laid.

In the overhead wire laying method according to the eighth aspect, in the overhead wire laying method for extending an overhead wire such as a messenger wire or a cable overhead, a double anti-back wheel wheel attached to a spiral hanger and a telephone pole and a sensor are provided. The first and second pull cords are passed through the first and second pull cords of the two-wheel, and the start and end of the second pull cord are fixed to a telephone pole, and the first pull cord and the second pull cord are stretched. A spiral hanger is inserted into the rope, a spiral hanger is attached to the first pull cord in a semi-tight line state, the spiral hanger is passed between adjacent utility poles, a closed space is formed between the utility poles by the spiral hanger, and a second hanger is formed from the second pull rope. After suspending the spiral hanger and attaching the messenger wire to the end of the first rope, the first rope and the messenger wire are pulled in a semi-tight state. Then, the messenger wire is laid, the messenger wire is mounted on a utility pole, the spiral hanger is suspended from the messenger wire in place of the second pulling line, and the starting end of the cable is attached to the second pulling line. In addition, the cable is pulled by pulling the cable in a quasi-tension state, the cable is laid, and the cable is laid in a spiral hanger suspended by the messenger wire.

According to a ninth aspect of the present invention, there is provided an overhead line laying method according to any one of the fourth to eighth aspects, wherein the diameters of the pull cords used are different from each other, and The present invention is characterized in that when a large-diameter pull cord is negotiated together, the large-diameter pull rope is hung downward by its own weight to negotiate with the thin-diameter pull rope.

According to a tenth aspect of the present invention, there is provided the overhead wire laying method according to any one of the first to ninth aspects, wherein the messenger wire or the cable is wound and accommodated in the drum. Install a wire breaker with multiple brakes that brakes the rotation and draws out the overhead wire from the drum, and applies tension to the overhead wire by braking the rotation of the drum with the wire breaker with multiple brakes to maintain the near tension state. An overhead wire laying method characterized by arranging overhead wires.

In the overhead wire laying method according to the eleventh aspect, in the overhead wire laying method according to any one of the first to tenth aspects, the anti-back metal wheel is attached to all power poles, and An overhead wire laying method characterized by mounting cars at important crossings and every several spans.

[0029]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The overhead wire laying method of the present invention will be described below. First, an overhead wire laying method according to a first embodiment of the present invention will be described. 1 to 3 are explanatory views for explaining the overhead wire laying method of the present embodiment, and FIGS.
FIGS. 6 and 7 are explanatory views for explaining a wire breaker with multiple brakes.
8 is an explanatory view for explaining a form of a pillar, and FIGS. 8 to 10 are explanatory views of a wheel with a sensor used in the overhead wire laying method of the present embodiment.
FIG. 1 is an explanatory view of an anti-back metal wheel used in the overhead wire laying method according to the present embodiment, and FIG. Hereinafter, FIG.
The overhead wire laying method of the present embodiment will be described with reference to FIGS.

First, it is assumed that a support is already built as an initial state. Examples of the support include a wooden pole, a concrete pole, an iron pole, and the like, but in this specification, description will be made assuming that the pole is made of concrete. As shown in FIG. 1A, electric poles 1a, 1b, 1c and 1d are erected, and pole fittings 2a, 2b, 2c and 2d are attached to these electric poles 1a to 1d. Here, the telephone pole 1a is the starting pole, the telephone pole 1
It is assumed that d is a terminal pole, and there are actually several tens of poles between the pole 1b and the pole 1c.

Although not shown, the worker gets on a bucket truck,
Each anti-back wheel and a wheel with a sensor are attached, and finally, as shown in FIG.
The wheel with sensors 3a, 3b and the other power poles 1b, 1c between the start and end poles are connected to an anti-back wheel and a wheel with sensor (hereinafter simply referred to as the wheel with anti-back sensor 3).
a, 3b. ), And one wheel with sensor is overlapped between 4 and 5 diameters. At the same time as this wheel setting work, the anti-back wheel wheels 3a 'and 3b', the wheel wheels 3a and 3b with anti-back sensor, and the wheel wheel with one sensor are overlapped between 4 and 5 diameters. And the number of movements of the bucket car is reduced because the second wheel car is not attached in the middle of the span from the start end column to the end column.

Incidentally, although not shown, this is a case where the vehicle is laid on an existing line, and the pulling line 5 is connected to a drop line of the existing line.
Where there is a risk of contact, separate the main rope only between telephone poles with service lines, suspend the No. 2 wheel on this main rope, and make sure that the pull line passes through the No. 2 wheel. Avoid contact with the drop line, or cure the drop line with a protective cover.

Subsequently, the pull cord 5 is attached to the messenger wire 7 via the untwist 6 on the starting end column side, and a capter-in-drum 8 (hereinafter referred to as a candler) which is a kind of traction device on the end column side. Abbreviated.) After the installation is completed, with the rotation of the drum being braked by the wire breaker 9 with multiple brakes, the towline 5 is towed little by little by the candler 8 and finally, as shown in FIG. Is completely stretched out. In the present specification, a state where the drawstring, the messenger wire and the cable are sufficiently stretched so as to eliminate the sag will be described below as a quasi-tension state. The messenger wire 7 is extended and laid as shown in FIG.

In order to maintain the drawstring 5 and the messenger wire 7 in a quasi-tension state, a back tension is applied in the direction of arrow A shown in FIG. Although there are various ways of applying the back tension, in this embodiment, the wire breaker 9 with multiple brakes is used.
Is used to apply back tension. The wire breaker 9 with multiple brakes will be schematically described.

4 shows a state in which a wire drum 10 in which a messenger wire 7 is wound and accommodated is installed in the wire breaker 9 with multiple brakes, and is extended in the extending direction. As shown in FIG. 4, four casters 9b are attached to the lower part of the wire drawing main body 9a. Castor 9
b is used not only when moving the wire breaker with multiple brakes 9 but also when measuring the tension of the overhead wire such as the messenger wire 7. The measurement of the tension will be described later.

There are various types of drums other than the wire drum 10. For example, the diameter of the wire drum 10 of the messenger wire 7 differs from the diameter of the cable drum for a cable described later. In the wire breaker 9 with multiple brakes,
Even if the drums have different diameters, the drums can be installed at an optimum position where the brake can be reliably applied. These configurations will be briefly described.

In order to attach the wire drum 10 to the wire breaker with multiple brakes 9 at the optimum position according to the diameter of the drum, the rotating main shaft 9c of the wire drum 10 shown in FIG. 4 is moved. For this purpose, a spindle holder 9d is provided so as to be rotatable with respect to the wire drawing main body 9a, and the rotating spindle 9c is moved by moving the spindle holder 9d. After the movement is completed, the spindle holder 9d is fixed to the main body 9a by the fixing portion 9e.

The spindle holder 9d is, for example, a rectangular plate, and is rotatably supported by the plates on both the left and right sides of the wire drawing body 9a described above. The rotating spindle 9c extends through the spindle holders 9d on the left and right sides.
Is mounted, and the position of the rotating main shaft 9c is adjusted by moving the rotating main shaft 9c together with the left and right main shaft holders 9d.

A fixing portion 9e for fixing the spindle holder 9d at a predetermined position is attached to the left and right both sides of the wire drawing main body 9a. The fixing portion 9e is, specifically, a locking screw attached to a screw hole (not shown) screwed into a reinforcing plate of the wire drawing main body 9a. The fixing portion 9e passes through a hole (not shown) provided in the spindle holder 9d and is fixed, and the rotating spindle 9c is attached at a fixed position.
Also, the brake devices 9f provided on the left and right sides of the multiple brake wire drawing device 9 are configured to move in the vertical direction so that the position of the brake contacting the wire drum 10 can be adjusted.

There are two methods for making the brake device 9f function. (1) The brake device 9f is constantly operated to apply a constant braking force such that the wire drum 10 has a constant rotation speed. (First brake) (2) An operator applies a braking force to the wire drum 10 by depressing a brake pedal. (Second brake) In this way, two types of brakes can be selected according to the work.

Next, a description will be given of the wire drawing operation of the wire breaker with multiple brakes 9. As shown in FIGS. 5 (a) and 5 (b), in order to move the caster 9b only in a predetermined direction, the wire breaker 9 with multiple brakes lays a line 9g having a groove such as a light groove type steel or a lip groove type steel. It is. Caster 9b
Is constrained by a line 9g in a moving direction in a certain direction (substantially parallel to the direction in which the messenger wire 7 is pulled).

A fixed rope 9h such as a string rope or a wire rope is tied to the wire breaker 9 with multiple brakes.
The other end of h is attached to the hook 11a of the construction vehicle 11. A tension measuring device 9i is attached to the fixed rope 9h. Although the actual tension applied to the messenger wire 7 is not directly measured, the wire breaker with multiple brakes 9 is not used.
Is movable by the casters 9b, the tension applied to the fixed rope 9h is substantially equal to the tension of the messenger wire 7. By utilizing this, the tension applied to the fixed rope 9h can be measured, and the tension of the messenger wire 7 can be measured.

When the worker brakes the wire drum 10, the brake wire is pulled by operating the lever of the wire drawing device 9j as the first brake. The brake device 9f brakes the rotation of the wire drum 10 with a constant braking force. When the operator depresses the brake pedal as the second brake, the brake device 9f brakes the rotation of the wire drum 10.

Next, the actual feeding operation will be described. Messenger wire 7 attached to untwist 6
Is fed from the wire drum 10, the worker observes the tension value output from the tension measuring device 9i and monitors the tension applied to the messenger wire 7. When the tension to be monitored becomes weaker, it is the case where the wire drum 10 is rotating at a high speed. Therefore, it is necessary to operate the lever or the brake pedal of the wire drawing device 9j to brake the rotation of the wire drum 10. Become. On the other hand, when the monitored tension becomes strong, it means that the wire drum 10 is rotating at a low speed or is stopped. Therefore, the lever of the wire drawing device 9j is operated to control the wire drum 10 to rotate. The power will be released.

Although two brake devices 9f are provided so as to be sandwiched from both side surfaces of the wire drum 10, one of the brake devices 9f breaks down, and back tension is applied to the messenger wire / cable / train. Even if it becomes impossible, the back tension is applied by using the remaining one to prevent the sagging.

When wire is drawn from the wire drum 10 using such a wire breaker 9 with multiple brakes, FIG.
As shown by, back tension is applied to the pull cord 5 and the messenger wire 7 in the direction of arrow A. The workers
While operating the brake devices 9f on both sides of the multi-brake output device 9, the overhead wire is sent out. If any of the brake devices 9f of the multi-brake output device 9 breaks down, the operator of the candler 8 stops the traction. Contact and stop laying the overhead line. Therefore, no drooping occurs.

Returning to the description of the extension of the messenger wire 7, which has been described halfway. As shown in FIG. 2 (a), the towing line 5 which has been brought into a quasi-tension state by the wire breaker 9 with multiple brakes is towed by using a candler 8, and while this quasi-tension state is constantly maintained, FIG. Messenger wire 7 as shown in b)
Is laid. In addition, as the extension of the messenger wire 7 proceeds, the messenger wire 7 is extended by the untwist 6 while correcting the twist.

The worker operates the wire breaker 9 with multiple brakes while checking the state of the messenger wire 7 and the pull cord 5 and the tension measuring device 9i, and extends the wire while applying the optimum back tension to the messenger wire 7. . Since the laying of the messenger wire 7 is performed in this manner, the situation in which the drawstring 5 or the messenger wire 7 hangs down or is detached from the gold wheel is avoided even though there are few wheels and the distance between the electric poles is 50 to 60 m. You. Finally, as shown in FIG. 3A, the messenger wire 7 in the quasi-closed state is extended from the start end column to the end column.

After the extension of the messenger wire 7 is completed, the messenger wire 7 is mounted on the utility pole. First, in principle, the central power pole of the power pole from the start pole to the end pole is mounted. The central telephone pole determined in this way is shown in FIG.
As shown in (b), the two intermediate loading columns (also called D columns)
Mount with The intermediate both retention pillars have a pillar form as shown in FIG. 6A, and are mounted at a ratio of about one to ten telephone poles. At points where the horizontal angle is more than 30 degrees,
6 (b), it is mounted on a special intermediate both retaining column. At the time of the intermediate both staying poles, the messenger wire 7 is not cut, and the messenger wire 7 is tightened while being pulled toward the utility pole by the extension metal fitting 12. The state up to this point is called temporary fastening. Subsequently, the messenger wire 7 is tightened and fixed by the winding grip 13 in a state where the slug 7a in the wound state is removed as an extra length. The state up to this point is called final fastening.

Subsequently, in the start end column and the end column, FIG.
A retention column (E column) as shown in FIG. The anchoring pillar is a pillar shape formed by a starting end pillar and a terminating pillar. The messenger wire 7 is fastened and fixed by a winding grip 13, and the cable is put into a vinyl tube 14 for wiring processing. Below, for the remaining telephone poles,
It is mounted in a linear mounting (A mounting) as shown in FIG. The linear mounting is a mounting form in which the messenger wire 7 is mounted in a substantially straight line. In FIG. 7B, the hanging metal fitting 15 is attached to the mounting metal fitting, and the messenger wire 7 is attached to the hanging metal fitting 15. Is a form of a pillar that is simply suspended. Such an intermediate both anchoring column (D column) and anchoring column (E column)
The messenger wire 7 is mounted from the start end column to the end column by combining and a straight mounting column (A mounting column).

Next, a description will be given of the mounting form of each electric pole from the start end column to the end column with reference to FIG. The power pole shown in FIG. 3B, which is the central power pole, is mounted by the above-described intermediate both retention columns (D columns). The messenger wire 7 is temporarily tightened by using only the tension fitting 12 and the final tightening by the winding grip 13 is performed later. Then, the electric pole of FIG.
Is mounted by a retention column (E column). In this case as well, the messenger wire is temporarily tightened with only the tension fitting 12 and the final tightening by the winding grip 13 is performed later.

Next, the column is mounted at both of the intermediate retaining columns. Specifically, one out of every about ten is provided with both intermediate retention columns. The middle both anchoring pole portions are the electric poles and the electric poles shown in FIG. 3B, but the electric poles are to be mounted first.
In this case, the tension between the central electric pole and the electric pole is not tightened temporarily but is tightened by using the winding grip 13 so that the messenger wire is tensioned with a predetermined tension.

In addition, between the utility pole on the starting end pole side and the utility pole, if there is an intermediate both staying pole column, it is temporarily tightened, and if there is no further intermediate both staying pole column, it is fully tightened.
In the present embodiment, a description will be given assuming that there is no intermediate both staying pillars and the main fastening is performed. The messenger wire in the tight line state is mounted by a pole-up operation, and the electric pole between the electric poles shown in FIG. This completes the mounting from the starting end column to the center. The same operation is performed from the center to the end pillar. 3 (b), the intermediate poles are installed, and the electric pole shown in FIG. 3 (b) is installed in a straight line. In this way, the mounting from the start end column to the end column is completed.

After the messenger wire 7 has been tightened, in this case, the cable is also back tensioned and negotiated. In this manner, a situation in which the messenger wire 7 hangs down due to its own weight or a situation in which the messenger wire is detached from the wheel train due to the torsion of the messenger wire can be prevented by extending the messenger wire in a quasi-tensioned state. And the step of attaching and detaching the wheel from the parent rope can be omitted, and the workability of the laying work of the overhead wire can be improved.

In the overhead wire laying method of the present embodiment, the overhead wire is laid in a semi-closed state, so that the overhead wire is prevented from hanging down. These special wheels will be described. Such a wheel includes a wheel 16 with a sensor as shown in FIGS. 8 to 10 and an anti-back wheel 17 as shown in FIG. FIG. 8 shows the configuration of the wheel with sensor 16.
And a pair of rollers 16a, and an elastic rubber portion 16b between the pair of rollers 16a. As shown in FIG. 10, a brake rotary cam 16c is rotatably provided at a position facing the elastic rubber portion 16a across the overhead wire. This brake rotary cam 16c is a solenoid 16d
The rotation is restricted by.

In order to operate this solenoid 16d,
The encoder 16f detects the rotation of the rotator 16e that rotates following the overhead wire, and is controlled by the drive control unit when an unusual extension of the wire is detected by a drive control unit (not shown).
The rotating cam 16c for brake pressed downward by the solenoid 16d presses the overhead wire so as to enter the gap, and stops by sandwiching the overhead wire between the rotating cam 16c for brake and the elastic rubber portion 16a. The wheel with sensor 1
6 and the anti-back wheel 17 are provided in two rows as shown in FIG.
A triple wheel with a sensor and a single wheel and a triple wheel of the anti-back wheel 17 are used. Such a gold wheel is appropriately selected.

The wheel with sensor 16 detects an abnormality in the cable moving in the forward direction with respect to the extension direction, while the anti-back wheel 17 operates as an abnormality in the cable moving in the direction opposite to the extension direction. Is to stop. The anti-back wheel 17 has a pair of rollers 17a shown in FIG.
And an elastic rubber portion 17b between the pair of rollers 17a. As shown in FIG. 11, the anti-back rotary cam 1 is located at a position facing the elastic rubber portion 17a with the overhead wire interposed therebetween.
7c is provided. Rotating cam 17c for anti-back
As shown in FIG. 11, following the overhead wire moving in the reverse direction, the overhead wire is pressed so as to enter the gap, and the overhead wire is sandwiched between the anti-back rotating cam 17c and the elastic rubber portion 17b to stop.

The wheel 16 with sensor and the anti-back wheel 17 are attached to a utility pole as shown in FIG. The wheel 16 with the sensor and the anti-back wheel 1
7 is to move the roller as shown in FIG.
It is designed to be able to attach up to the cord and cord. In addition, three cars are possible by making a three-story car.
The use of the wheel with sensor 16 and the anti-back wheel 17 stops the overhead lines that are abnormally extended in the forward and reverse directions with respect to the extending direction, thereby enhancing the safety of work. . The sensor wheel 16 and the anti-back wheel 17 can be set as appropriate.

Next, an overhead line laying method according to a second embodiment of the present invention will be described. 13 to 15
FIG. 3 is an explanatory diagram illustrating an overhead wire laying method of the present embodiment.
Hereinafter, the overhead wire laying method of the present embodiment will be described with reference to FIGS. Note that the same components as those in the first embodiment are denoted by the same reference numerals, and description thereof is omitted.

As shown in FIG. 13A, utility poles 1a, 1
b, 1c, 1d include column fittings 2a, 2b, 2c, 2d
Is attached. Although not shown, the worker mounts the wheel while riding on the bucket truck.
As shown in (b), an electric pole 1a as a starting end pole and an electric pole 1e as an end pole are combined with an anti-back wheel and a wheel with an anti-back sensor. Between 1d, 1b and 1c are mounted with a wheel with an anti-back sensor, and on 1d, the wheel with an anti-back sensor is mounted in a combination of several locations in several diameters. Simultaneously with this wheel setting work, the first pulling line 18a and the second pulling line 18b are laid.

Subsequently, as shown in FIG. 14 (a), the second pulling rope 18b is connected by the starting and ending power poles 1a and 1d. On the other hand, the first pull cord 18a is attached to the messenger wire 7 via the untwist 6 on the start end column side, and is attached to the candler 8 on the end column side. After the installation, the rotation of the wire drum 10 is braked by the wire breaker 9 with multiple brakes, and the first tow rope 18a is pulled little by little by the candler 8 while always maintaining the semi-tension state. (A)
The messenger wire 7 is extended and laid as shown in FIG. Then, the messenger wire 7 is mounted on the utility pole as described above with reference to FIG.

Subsequently, as shown in FIG.
The cable 1 is connected to the cable 1
9 is attached. The cable 19 is wound and accommodated in a cable drum 20, and the cable drum 20 is attached to the wire breaker 9 with multiple brakes. Then, like the messenger wire 7, it is towed by the candler 8 and the wire breaker 9 with multiple brakes while maintaining the quasi-tension state. After the cable 19 is laid on the wheel, the worker removes the cable 19 from the wheel using a bucket wheel (not shown) and attaches the cable hanger 2 to the messenger wire 7.
1 is used to attach the cable 19. Finally, the cable 19 is suspended from the messenger wire 7 as shown in FIG. Also in this case, the work of mounting the wheel as in the first embodiment can be reduced, and the working efficiency is increased.

As described above, a situation in which the messenger wire hangs down due to its own weight or a situation in which the messenger wire comes off the wheel due to the torsion of the messenger wire can be prevented by extending the messenger wire in a quasi-tension state. It is possible to omit the step of stretching and to attach / detach a wheel to and from the parent rope, thereby improving the workability of the laying work of the overhead wire.

Next, an overhead line laying method according to a third embodiment of the present invention will be described. FIG. 16 is an explanatory diagram illustrating the overhead wire laying method of the present embodiment. Hereinafter, the overhead wire laying method of this embodiment will be described with reference to FIG. Note that the same components as those in the first embodiment are denoted by the same reference numerals, and description thereof is omitted.

This embodiment is the same as the second embodiment up to the middle, but the construction method is different from the middle. Second
The towline 18b is connected by the first and last power poles 1a and 1d,
The messenger wire 7 is gradually pulled by the towing line 18a while always maintaining the quasi-tension state.
As shown in (a), the messenger wire 7 is extended and laid, and the same is true until the messenger wire 7 is mounted on the utility pole as described with reference to FIG.

Subsequently, the worker attaches the cable hanger 21 to the messenger wire 7 using a bucket truck (not shown).
The second pulling rope 18b is laid over the cable hanger 21 while attaching the cable hanger 21. The second rope 18b is shown in FIG.
6 (b), it is suspended from the messenger wire 7. Subsequently, using the second pull cord 18b, the untwist 6
Attach the cable 19 via. The cable 19 is wound and accommodated in a cable drum 20, and the cable drum 20 is attached to the wire breaker 9 with multiple brakes. Then, while maintaining the quasi-tension state similarly to the messenger wire 7, the candler 8 and the wire output device 9 with multiple brakes are provided.
Towed by Finally, the cable 19 is attached. Also in this case, the work of mounting the wheel as in the first embodiment can be reduced, and the working efficiency is increased.

As described above, a situation in which the messenger wire hangs down due to its own weight or a situation in which the messenger wire comes off the wheel due to the torsion of the messenger wire can be prevented by extending the messenger wire in a quasi-tension state. It is possible to omit the step of stretching and to attach / detach a wheel to and from the parent rope, thereby improving the workability of the laying work of the overhead wire.

Now, in the first to third embodiments, a normal cable hanger is used, and after the messenger wire is stretched, it is the same as the conventional method. It is also possible to reduce the use of a wheelbarrow over the whole, and to reduce the man-hour for cable laying work.

Hereinafter, an overhead wire laying method according to a fourth embodiment of the present invention using such a coil hanger will be described. FIG. 17 is an explanatory view illustrating a coil hanger, and FIG.
8 to 22 are explanatory diagrams for explaining the overhead wire laying method of the present embodiment, FIG. 23 is an explanatory diagram for explaining a column of a coil hanger, and FIG. 24 is an explanatory diagram for a clip for fixing the coil hanger to a drawstring. Hereinafter, the overhead wire laying method of the present embodiment will be described with reference to FIGS.

The coil hanger 22 is formed by covering a spring spring with a synthetic resin, and has a shape as shown in FIG. When this coil hanger 22 is pulled, it extends while maintaining a spiral (spiral) shape,
As shown in FIGS. 17B and 17C, the coil hanger 22 is hung from the messenger wire 7 and the coil hanger 22 is hung by hanging the cable 19.

An overhead wire laying method including installation of the coil hanger 22 will be described. As shown in FIG. 18A, the poles 2a, 2b,
2c and 2d are attached. The worker mounted on the bucket truck mounts the anti-back wheel wheels 3a 'and 3b' and the wheel wheels 3a and 3b with anti-back sensors on these utility poles 1a to 1d as in the first embodiment.

At this time, the anti-back wheels 3a 'and 3b'
At the time of attaching the metal wheels 3a and 3b with the anti-back sensor, the first pull cord 18a is
a ', 3b' and wheel wheels 3a, 3b with anti-back sensor
And the first pull cord 18a is passed through the coil hangers 22a, 22b and 22c. Then, one ends of the coil hangers 22a, 22b, 22c are connected to the utility poles 1a, 1a.
b, 1c are fixed to the column fittings 2a, 2b, 2c. The worker on the bucket truck performs a series of operations on the utility poles 1a, 1b, 1c.

The work of fixing the coil hangers 22a, 22b, 22c is performed, for example, using a mounting bracket 23 as shown in FIG. The mounting bracket 23 is an L-shaped bracket main body 2.
The rotating body 23b is arranged so as to be freely rotatable on 3a. The rotating body 23b has a hole 23c into which one end of the coil hanger 22 is inserted, and a screw 23d that is screwed into the hole 23c, and the coil hanger 22 is fastened and fixed with the screw 23d.

An opening / closing member 23e is provided on the metal fitting body 23a so as to be rotatable in the direction of the arrow, and is fixed by being inserted into a hole of the projection 23f of the metal fitting body 23a.
In addition, although not shown, it may be fixed by screwing. Since the mounting fitting is configured such that a semicircular member sandwiches the electric pole, the mounting fitting 23 is attached when the mounting fitting is fixed. Specifically, FIG.
The result is as shown in FIG.

Even if the coil hanger 22 operates, the rotating body 23
b rotates. For this reason, a situation in which force is concentrated on the mounting bracket 23 and the mounting bracket 23 is broken can be avoided. In addition, since the coil hanger 22 can move freely, the situation where the messenger wire 7 keeps contacting one place and the synthetic resin coated on the coil hanger 22 peels off can be avoided. After the mounting of the coil hanger 22 to the mounting bracket 23 is completed, as shown in FIG.
The first rope 18a has passed through the inside of 22b, 22c.

As shown in FIG. 19A, the first cord 1
On the starting end side of 8a, the first pulling line 18a is attached to the candler 8, and on the end side of the first pulling line 18a,
The first rope 18a is attached to the wire breaker 9 with multiple brakes. Actually, the first pull cord 18a is attached to the messenger wire 7 of the wire drum 10 in view of the work process in the future. Then, the first pulling line 18a is pulled by the candler 8 to bring the first pulling line 18a into a semi-closed state.

Subsequently, the other end of the coil hanger 22a is fixed to the clip 24 as shown in FIG. Although the clip 24 is configured to be freely openable and closable, the clip 24 is urged so as to close by the urging force of the torsion coil spring, so that even when the coil hanger 22 is sufficiently extended, the first pulling line 18a can be sufficiently extended. Fix it so that it does not move with a strong force.

As shown in FIG. 24B, a wire tip 25a provided at the tip of the wire 25 and a sheath tip 26a provided at the tip of a sheath 26 movably covering the wire 25 are attached to the clip 24. The opening and closing of the clip 24 can be controlled by the clip operation driver 27 shown in FIG. Wire 25
The structure of the sheath 26 is the same as that of the brake cable described above. When the clip operation driver 27 is gripped as shown in FIG. 24A, the clip 24 releases the fixing of the first pulling line 18a. Note that even if the other end of the coil hanger 22 is detached from the clip 24, the ring 2
8 and the lace 29 prevent the coil hanger 22 from suddenly shrinking.

When the coil hanger 22 is extended, the first pulling rope 18a is continuously pulled while the clip 24 is fixed to the first pulling rope 18a, and the coil hanger 22 is attached to the mounting bracket 23 of the pole fitting of the adjacent electric pole. In this case, first the lace 29
Then, the other end of the coil hanger 22 is attached to the mounting bracket 23, the lace 29 is removed, and the clip 24 is finally removed from the first pulling line 18a. This avoids a situation in which the coil hanger 22 is unrestricted and the coil hanger 22 is rapidly contracted.

Thus, as shown in FIG. 19B, one coil hanger 22a is passed between the two electric poles 1a and 1b. Hereinafter, similarly, the other coil hangers 22b, 22
After passing c, all the coil hangers 22a, 22b and 22c are finally passed between utility poles as shown in FIG. In this case, all the coil hangers 22a, 22b, 22c may be passed between the utility poles by passing the coil hangers 22a, 22b, 22c simultaneously by one movement of the first pull cord 18a. The coil hangers 22a, 22
After the negotiations of 2b and 22c, the first pulling line 18a is also laid.

Subsequently, as shown in FIG. 20B, the messenger wire 7 is attached to the first pulling line 18a and the second pulling line 18b via the untwist 6. Second tow rope 18
A tension is appropriately applied to b, and a back tension is applied to the messenger wire 7 by a wire breaker 9 with multiple brakes. Then, the first pulling line 18a is pulled by the candler 8, and as shown in FIG. 21A, the messenger wire 7 and the second pulling line 18b are pulled in a semi-tension state to the end column side. At this time, the messenger wire 7 and the second pull cord 18b exist in the wheel, but these wheels
A twin-wheel car, etc., that can pull the rope of the strip is used.

Subsequently, the messenger wire 7 is mounted on a utility pole. Regarding the mounting of the messenger wire 7,
This is the same as the embodiment, and a detailed description is omitted. After the mounting, the coil hangers 22a, 22
2b and 22c are suspended. Subsequently, as shown in FIG. 21 (b), the cable 19 is attached to the end of the second pulling rope 18b via the untwisted cable 6. In this case, the back tension is applied to the cable 19 that is drawn out from the cable drum 20 by using the multi-brake output unit 9. Then, as shown in FIG. 22A, the cable 19 is pulled by pulling the second pulling rope 18b using the candler 8.

At the same time as the pulling of the cable 19 is completed, the cable 19 is laid in the coil hanger 22. Finally, as shown in FIG. To connect to a predetermined device, etc.) to complete the overhead wire laying. If the overhead wire laying method as in the fourth embodiment is used, the wire wheel required for messenger wire arranging is only suspended by telephone poles, and the wire wheel is not required at all during cable arranging. It is possible to reduce the number of wheels required for laying.

Next, a fifth embodiment according to claim 5 of the present invention will be described. In the present embodiment, an overhead line laying method for simultaneously arranging two ropes will be described first. FIG. 25-
FIG. 29 is an explanatory diagram illustrating the overhead wire laying method of the present embodiment. Hereinafter, the overhead wire laying method of the present embodiment will be described with reference to FIGS.

The worker on the bucket car is shown in FIG.
A first pulling line 18a is provided for the pole fittings 2a, 2b, 2c, 2d of the utility poles 1a, 1b, 1c, 1d as shown in FIG.
And two second pulling lines 18b are passed through the anti-back wheels 3a 'and 3b' and the anti-back sensor wheels 3a and 3b, and these two lines are coil hangers 22a, 22b and 22b. Pass through 22c. Then, one end of each of the coil hangers 22a, 22b, 22c is fixed to a pole fitting attached to the telephone pole, and a state as shown in FIG.

The first pulling line 18a is a thin pulling line, and the second pulling line 18b is a large diameter pulling line.
The reason for making the diameters different in this way is that when the pulling rope hangs between the wheels, the weight of the pulling rope differs due to the difference in diameter, and the large diameter pulling rope hangs down from the small diameter pulling rope, This is because even if the tow lines are swayed by the wind, they do not come into contact with each other, and the risk of the multiple tow lines being entangled is reduced.

Subsequently, as shown in FIG. 26 (a), the second pulling rope 18b is tied and fixed to a utility pole. continue,
As shown in FIG. 26 (b), the messenger wire 7 is attached to the end of the first pull cord 18a via the untwist 6. Subsequently, as shown in FIG. 27A, the messenger wire 7 is used together with the first pull cord 18a using the candler 8.
Tow in a semi-tension state. After the towing is completed, the messenger wire 7 is mounted as shown in FIG. The installation of the utility pole is the same as in the first embodiment, and the description is omitted. By such an operation, all the electric poles 1a, 1b,
For the mounting metal fittings 2a, 2b, 2c and 2d of 1c and 1d,
Pillar of messenger wire 7 and coil hanger 22a, 2
One end of each of 2b and 22c is fixed.

Subsequently, the clip 24 is attached to the second pulling rope 18b. The clip 24 is the same as that of the fourth embodiment, and the description will not be repeated. The second pulling line 18b is unwound from the utility pole, and as shown in FIG. 27 (b), the second pulling line 18b is attached to the wire breaker 9 with multiple brakes and the candler 8 to be in a semi-tight line state, and FIG. 28 (a) The second as shown
The coil hanger 22a is extended to the adjacent utility pole 1b by moving the drawstring 18b and the clip 24, and the other end of the coil hanger 22a is fixed to the utility pole 1b.

Hereinafter, the same operation is performed, and finally, FIG.
As shown in FIG. 8 (b), the coil hanger 22
a, 22b, 22c are passed. At this time, the coil hangers 22a, 22b, and 22c are suspended by the messenger wires 7 and the hanging of the coil hangers 22a, 22b, and 22c is avoided.

Subsequently, as shown in FIG. 29 (a), a cable 19 is attached to the end of the second pulling line 18b via the untwist 6 and the second pulling line 18b and the cable 19 are pulled. After the towing is completed, the cable 19 is laid in the coil hangers 22a, 22b, 22c as shown in FIG. 29 (b), and finally, the cable 19 shown in FIG.
As shown in (b), predetermined wiring (such as being inserted into the vinyl tube 14 and connecting to a predetermined device) is performed at the start end column and the end column, and the laying of the overhead wire is completed.

In this embodiment, the two ropes are described as the first rope 18a with a small diameter and the second rope 18b with a large diameter. The tow line is the first tow line 18a, and the small-diameter tow line is the second tow line 1.
8b, and the present invention can be implemented in any case.

Next, an overhead line laying method according to a sixth embodiment of the present invention will be described. FIG. 30 to FIG. 32 are explanatory diagrams illustrating the overhead wire laying method of the present embodiment. Hereinafter, FIG.
The overhead line laying method of the present embodiment will be described with reference to FIGS. In the above-described fifth embodiment, the coil hanger is laid after the messenger wire is laid. However, in the present embodiment, the laying method of the messenger wire is laid first, and then the messenger wire is laid.

In this overhead wire laying method, the procedures from FIG. 25A to FIG. 26A in the fifth embodiment are the same as those in the fifth embodiment, and the description thereof will be omitted, and the subsequent procedures will be described. After the two first ropes 18a and the second rope 18b are inserted through the coil hangers 22a, 22b and 22c as shown in FIG.
A large-diameter second pulling line 18b is tied between utility poles to negotiate. Subsequently, as shown in FIG.
Then, the first pulling line 18a is brought into a quasi-tightened state by using the wire puller 9 with multiple brakes, and the clip 24 to which the coil hanger 22a is fixed is attached to the first pulling line 18a. The clip 24 is the same as the description of the fourth embodiment, and a duplicate description will be omitted.

The clip 24 is moved together with the first pull cord 18a, and the coil hanger 22a is extended to the utility pole 1b at the other end as shown in FIG.
a is fixed to a utility pole. Thereafter, the same operation is performed, and finally, as shown in FIG. 31A, the coil hangers 22a, 22b, and 22c are passed between all the electric poles, and these are hung from the second pulling line 18b. In addition, the coil hanger 2
2a, 22b and 22c can be extended simultaneously. These are appropriately selected.

Subsequently, as shown in FIG. 31B, the messenger wire 7 is attached to the other end of the first drawstring 18a via the untwist 6. Then, by pulling the messenger wire 7, the coil hanger 22a, as shown in FIG.
22b and 22c, the messenger wire 7
As shown in FIG. 32 (b), the coil hangers 22a, 22b, 22c are suspended from the messenger wires 7 stretched in place of the second drawstrings 18b, as shown in FIG.
The second drawstring 18b is laid in the coil hangers 22a, 22b, 22c.

This state is the same as the state of FIG. 21 (b) described as the fourth embodiment. Hereinafter, the method of the fourth embodiment described with reference to FIGS. 21 (b) to 22 (b) will be described. The description is omitted. Even by using such an overhead wire laying method, it is possible to reduce the number of wheels to be used, and it is possible to avoid a situation in which the coil hanger is hung by the pulling rope and the coil hanger hangs.

Next, an overhead wire laying method according to a seventh embodiment of the present invention will be described. FIG. 33 to FIG. 38 are explanatory views illustrating the overhead wire laying method of the present embodiment. Hereinafter, FIG.
The overhead line laying method of this embodiment will be described with reference to FIGS. In this embodiment, an overhead wire laying method using three ropes is used.

This overhead line laying method will be described. FIG.
As shown in (a), utility poles 1a, 1b, 1c, 1d
The column mounting fittings 2a, 2b, 2c, 2d are attached to the mounting holes. The workers on the bucket trucks can use these utility poles 1a-1
d, the anti-back wheel wheels 3a ', 3 as in the first embodiment.
b 'and the wheels 3a, 3b with anti-back sensor are attached.

At this time, the anti-back wheels 3a ', 3b'
At the time of attaching the anti-back sensors 3a 'and 3b' to the anti-back sensors 3a and 3b ', the first and second pull lines 30a, 30b and 30c are connected to the anti-back sensors 3a' and 3b '. The first pulling line 30a, the second pulling line 30b, and the third pulling line 30c are passed through the coil hanger 22a, 22b, 22c while passing through the attaching wheels 3a, 3b. And the coil hanger 22a, 22b, 22c
Is fixed to pole fittings 2a, 2b, 2c attached to utility poles 1a, 1b, 1c. The worker on the bucket truck performs a series of operations on the utility poles 1a, 1b, 1c.
Do with.

The fixing work of the coil hangers 22a, 22b, 22c is performed by using the mounting bracket 23 as shown in FIG. After the coil hangers 22a, 22b, 22c have been mounted on the mounting bracket 23, FIG.
As shown in (b), the first pulling line 30a, the second pulling line 30b, and the third pulling line 30c pass through all the wheels and the coil hangers 22a, 22b, and 22c having one end fixed. I have.

Then, as shown in FIG.
The towline 30b and the third towline 30c are temporarily attached to the utility pole. About the first pull cord 30a,
As shown in FIG. 34 (b), on the starting end side of the first pulling line 30a, the first pulling line 30a is attached to the candler 8, and on the end side of the first pulling line 30a, the first pulling line 30a is connected to the first pulling line 30a. The messenger wire 7 of the wire drum 10 is attached via the untwist 6.

The back tension is applied to the messenger wire 7 by the wire breaker 9 with multiple brakes. Then, the first pulling line 30a is pulled by the candler 8, and the messenger wire 7 and the first pulling line 30a are pulled in a quasi-tension state to the end column side as shown in FIG.

Subsequently, as shown in FIG. 35B, the messenger wire 7 is mounted on a utility pole. The mounting of the messenger wire 7 is the same as in the first embodiment, and a detailed description is omitted. Subsequently, as shown in FIG. 36 (a), the cable 1
9 is attached. In this case, the cable 1 drawn out from the cable drum 20 using the wire breaker 9 with multiple brakes is used.
9 is back-tensioned using the wire breaker 9 with multiple brakes. Then, FIG.
As shown in (b), the cable 19 is pulled by pulling the second pull rope 30b. The cable 19 is laid in the coil hanger 22 and the cable is subjected to an end treatment.
It is mounted as shown in FIG.

Subsequently, the clip 24 shown in FIG.
To the other end of the coil hanger 22a. Thus, as shown in FIG. 37 (b), one coil hanger 22a
Is passed between the two utility poles 1a and 1b. In the same manner, the other coil hangers 22b and 22c are similarly passed and finally
As shown in (a), all the coil hangers 22a, 22a
b and 22c are passed between utility poles. In this case, all the coil hangers 22a, 22b, 22c may be passed between utility poles by passing the coil hangers 22a, 22b, 22c at the same time. Finally, predetermined wiring (such as being inserted into the vinyl tube 14 and connected to a predetermined device) is performed at the start end column and the end column, and the laying of the overhead wire is completed.

In the case of the overhead wire laying method as in the present embodiment, the wire wheel required for the messenger wire laying and the cable laying can be reduced only by suspending only on the electric pole, and the wire wheel required for the laying can be reduced. be able to.

Next, an overhead line laying method according to an eighth embodiment of the present invention will be described. FIG. 39 is an explanatory diagram illustrating a spiral hanger. 40 to 42 are explanatory views illustrating the overhead wire laying method of the present embodiment. Hereinafter, FIG.
The overhead line laying method of this embodiment will be described with reference to FIGS. In the present embodiment, an overhead wire laying method using a spiral hanger instead of the coil hanger is used.

The spiral hanger 22 has a shape in which a steel wire coated with a synthetic resin is formed in a spiral shape in advance, and as shown in FIG. 39, a spring spring (helical spring) is extended. . The spiral hanger 31 does not expand and contract like the coil hanger 22 and always maintains a spiral (spiral) shape.

[0108] This overhead line laying method will be described. FIG.
As shown in (a), utility poles 1a, 1b, 1c, 1d
The column mounting fittings 2a, 2b, 2c, 2d are attached to the mounting holes. The workers on the bucket trucks can use these utility poles 1a-1
d, the anti-back wheel wheels 3a ', 3 as in the first embodiment.
b 'and the wheels 3a, 3b with anti-back sensor are attached.

At this time, the No. 4 gold wheels 3a and 3b and the No. 2 gold wheel 4
At the time of the attachment work with the a and 4b, as shown in FIG. 40 (b), the first pulling line 18a and the second pulling line 18b are connected to the anti-back wheels 3a 'and 3b' and the anti-back sensor wheel 3a, 3b. The worker on the bucket truck performs a series of operations on the utility poles 1a, 1b, 1c, 1d. Subsequently, as shown in FIG. 41A, a large-diameter second pulling line 18b is bound between utility poles.

Subsequently, the messenger wire 7 is attached to one end of the first pull cord 18a via the untwist 6 and the candler 8 is attached to the other end. Then, the first tow rope 18a and the messenger wire 7 are connected by using the wire breaker 9 with multiple brakes.
Is pulled in a semi-closed state, and the messenger wire 7 is laid between utility poles as shown in FIG. 41 (a). Subsequently, as shown in FIG. 41 (b), the second pull cord 18b is attached to the cable 19 via the untwist 6 at one end, and is attached to the candler 8 at the other end. Further, the spiral hanger 31a is inserted into and attached to the messenger wire 7 and the second pulling line 18b.

Then, the spiral hanger 31a is attached to the second pulling rope 18b and moved to pass between utility poles as shown in FIG. 41 (b). Hereinafter, the spiral hanger 31b,
Similarly, the spiral hanger 31a, 31b, 31c is attached to a utility pole and fixed as shown in FIG. 42 (a). Stretched messenger wire 7
Spiral hangers 31a, 31b, 31c are suspended from the spiral hangers 31a, 31b, 31c.
The state where the second pulling line 18b is laid in the area c is established.

Then, the cable 19 is pulled by the second pull cord 18b, and the spiral hangers 31a, 31b, 3
After passing through 1c, the cable 19 is finally mounted as shown in FIG. 42 (b). Even with such an overhead wire laying method, it is possible to reduce the number of wheels to be used, and it is possible to avoid a situation in which the spiral hanger is hung by the pull rope and the spiral hanger hangs.

In the first to eighth embodiments, the mounting of the anti-back wheel and the wheel with the sensor on the telephone pole is shown in FIG.
Mounting as shown at 3 is most preferred. However,
The anti-back wheel and the wheel with the sensor are not limited to this mounting, but can be mounted without departing from the gist of the present invention.

As described above, according to the present invention, the wire drum 10 and the cable drum 2 are operated by operating the wire breaker 9 with multiple brakes.
A constant braking force can be applied to 0, thereby preventing the turning speed of the wire drum 10 or the cable drum 20 from exceeding a predetermined value. This braking force is measured by a tension measuring device 9i.
The operation can be set while referring to the tension value and the like displayed in the above, and the situation where the overhead line is broken due to excessive braking force is prevented. In addition, since the worker can apply the brake and adjust the braking force before the rotation speed of the wire drum 10 or the cable drum 20 increases, it is possible to flexibly cope with the rotation speed and the tension value.

[0115]

According to the overhead wire laying method of the present invention, in order to prevent the overhead wire such as a messenger wire or a cable or the dropping line from hanging down, the tension in the direction opposite to the extending direction of the overhead wire or the pulling line (hereinafter referred to as backing). By applying tension, it is possible to reduce the number of pulleys required for laying the overhead wire, thereby realizing both improved work efficiency and improved workability.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram illustrating an overhead wire laying method according to a first embodiment of the present invention.

FIG. 2 is an explanatory diagram illustrating an overhead wire laying method according to the first embodiment of the present invention.

FIG. 3 is an explanatory diagram illustrating an overhead wire laying method according to the first embodiment of the present invention.

FIG. 4 is an explanatory diagram illustrating a wire breaker with multiple brakes.

FIG. 5 is an explanatory diagram illustrating a wire breaker with multiple brakes.

FIG. 6 is an explanatory diagram illustrating a mounting form.

FIG. 7 is an explanatory diagram illustrating a mounting form.

FIG. 8 is an explanatory diagram illustrating a wheelbarrow with a sensor.

FIG. 9 is an explanatory view illustrating a wheel with a sensor.

FIG. 10 is an explanatory diagram illustrating a wheel with a sensor.

FIG. 11 is an explanatory diagram for explaining an anti-back wagon.

FIG. 12 is an explanatory diagram illustrating mounting of a utility pole on a wheel and an anti-back wheel with a sensor.

FIG. 13 is an explanatory diagram illustrating an overhead wire laying method according to a second embodiment of the present invention.

FIG. 14 is an explanatory diagram illustrating an overhead wire laying method according to a second embodiment of the present invention.

FIG. 15 is an explanatory diagram illustrating an overhead wire laying method according to a second embodiment of the present invention.

FIG. 16 is an explanatory diagram illustrating an overhead wire laying method according to a third embodiment of the present invention.

FIG. 17 is an explanatory diagram illustrating a coil hanger.

FIG. 18 is an explanatory diagram illustrating an overhead wire laying method according to a fourth embodiment of the present invention.

FIG. 19 is an explanatory view illustrating an overhead wire laying method according to a fourth embodiment of the present invention.

FIG. 20 is an explanatory diagram illustrating an overhead wire laying method according to a fourth embodiment of the present invention.

FIG. 21 is an explanatory diagram illustrating an overhead wire laying method according to a fourth embodiment of the present invention.

FIG. 22 is an explanatory diagram illustrating an overhead wire laying method according to a fourth embodiment of the present invention.

FIG. 23 is an explanatory diagram illustrating a mounting column of a coil hanger.

FIG. 24 is an explanatory view of a clip for fixing the coil hanger to the drawstring.

FIG. 25 is an explanatory diagram for explaining an overhead wire laying method according to a fifth embodiment of the present invention.

FIG. 26 is an explanatory diagram for explaining an overhead wire laying method according to a fifth embodiment of the present invention.

FIG. 27 is an explanatory diagram for explaining an overhead wire laying method according to a fifth embodiment of the present invention.

FIG. 28 is an explanatory diagram illustrating an overhead wire laying method according to a fifth embodiment of the present invention.

FIG. 29 is an explanatory diagram for explaining an overhead wire laying method according to a fifth embodiment of the present invention.

FIG. 30 is an explanatory view illustrating an overhead wire laying method according to a sixth embodiment of the present invention.

FIG. 31 is an explanatory diagram for explaining an overhead wire laying method according to a sixth embodiment of the present invention.

FIG. 32 is an explanatory diagram illustrating an overhead wire laying method according to a sixth embodiment of the present invention.

FIG. 33 is an explanatory diagram for explaining an overhead wire laying method according to a seventh embodiment of the present invention.

FIG. 34 is an explanatory diagram illustrating an overhead wire laying method according to a seventh embodiment of the present invention.

FIG. 35 is an explanatory diagram illustrating an overhead wire laying method according to a seventh embodiment of the present invention.

FIG. 36 is an explanatory diagram illustrating an overhead wire laying method according to a seventh embodiment of the present invention.

FIG. 37 is an explanatory diagram illustrating an overhead wire laying method according to a seventh embodiment of the present invention.

FIG. 38 is an explanatory diagram for explaining the overhead wire laying method according to the seventh embodiment of the present invention.

FIG. 39 is an explanatory diagram illustrating a spiral hanger.

FIG. 40 is an explanatory diagram illustrating an overhead wire laying method according to an eighth embodiment of the present invention.

FIG. 41 is an explanatory diagram illustrating an overhead wire laying method according to an eighth embodiment of the present invention.

FIG. 42 is an explanatory diagram illustrating an overhead wire laying method according to an eighth embodiment of the present invention.

FIG. 43 is a view showing a method of attaching gold with an anti-back sensor.

FIG. 44 is an explanatory diagram illustrating an example of a conventional overhead line laying method.

FIG. 45 is an explanatory diagram illustrating an example of a conventional overhead line laying method.

FIG. 46 is an explanatory diagram illustrating an example of a conventional overhead line laying method.

FIG. 47 is an explanatory diagram for explaining the hanging of the overhead wire generated by the overhead wire laying method using the anti-back metal wheel.

[Explanation of symbols]

1a, 1b, 1c, 1d Utility poles 2a, 2b, 2c, 2d Mounting metal fittings 3a, 3b Metal wheel with anti-back sensor 3a ', 3b' Anti-back metal wheel 5 Towline 6 Twist-back 7 Messenger wire 7a Slag 8 Candra Reference Signs List 9 Multi-brake wire drawer 9a Wire breaker main body 9b Caster 9c Rotating main shaft 9d Main shaft holder 9e Fixed part 9f Braking device 9g Line 9h Fixed rope 9i Tension measuring device 9j Wire pull-in device 10 Wire drum 11 Construction vehicle 11a Hook 12 Extension metal fitting 13 Winding grip 14 Vinyl tube 15 Suspension metal fitting 16 Wheel with sensor 16a Roller 16b Elastic rubber part 16c Rotating cam for brake 16d Solenoid 16e Rotator 16f Encoder 17 Anti-back metal wheel 17a Roller 17b Elastic rubber part 17c Anti rubber Rotating cam 18a First pulling line 18b Second pulling line 19 Cable 20 Cable drum 21 Cable hanger 22 Coil hanger 22a, 22b, 22c Coil hanger 23 Mounting bracket 23a Metal fitting body 23b Rotating body 23c Hole 23d Screw 23e Opening / closing part 23f Projection 24 Clip 25 Wire 25a Wire tip 26 Sheath 26a Sheath tip 27 Clip operation driver 28 Ring 29 Tether 30a First lanyard 30b Second lanyard 30c Third lanyard 31 Spiral hanger 31a, 31b, 31c Coil hanger

Claims (11)

[Claims] In an overhead wire laying method for extending an overhead wire called a messenger wire or a cable overhead, a pulling line is laid over an anti-back wheeled car and a sensor-equipped wheeled car attached to respective electric poles from a starting end column to an end column. An overhead wire is attached to one end of the towline, and a predetermined tension in a direction opposite to the feed direction of the overhead wire and the towline is applied to the overhead wire and the towline, and the towline is towed while maintaining the quasi-tension state to negotiate the overhead line. An overhead wire laying method characterized by laying the overhead wire over a telephone pole and laying the overhead wire. 2. An overhead wire laying method for extending an overhead wire called a messenger wire or a cable overhead, wherein an anti-back wheel wheel and a wheel wheel with a sensor attached to a utility pole mounted between a starting pole and a terminating pole are provided with a second wire. After passing through the first and second lanyards, the messenger wires are laid together, and after attaching the starting end of the messenger wire to the first lanyard, the first lanyard and the messenger wire are pulled in a semi-tension state to bridge the messenger wire. After installing the messenger wire on the telephone pole, attaching the starting end of the cable to the second pulling line, pulling the second pulling line and the cable in a semi-tension state, arranging the cable, and suspending the cable on the messenger wire An overhead wire laying method characterized by laying cables by laying cables while attaching a cable hanger to a vehicle. 3. An overhead wire laying method for extending an overhead wire called a messenger wire or a cable in an aerial manner, wherein two anti-back wheels and two wheels with sensors are attached to each of the electric poles from the starting pole to the end pole. After passing through the first and second lanyards of the messenger wire and attaching the starting end of the messenger wire to the first lanyard, the first towing line and the messenger wire are towed in a semi-tensioned state to messenger wire. After installing the messenger wire on the telephone pole, attaching the starting end of the cable to the second pulling line, pulling the second pulling line and the cable in a semi-tension state, laying the cable and laying the overhead line An overhead wire laying method characterized by the following. 4. An overhead wire laying method for extending an overhead wire called a messenger wire or a cable overhead, wherein a coil hanger having one end fixed to a power pole, an anti-back wheel wheel mounted on the power pole and a wheel wheel with sensor are provided with a first wire.
The first pulling rope is laid by passing through the pulling rope.
In addition to the tow line, the first tow line is placed in a semi-tension state, the other end of the coil hanger is attached to a clip fixed to the first tow line, and the clip is moved together with the first tow line to extend the coil hanger to an adjacent telephone pole. The other end of the coil hanger is fixed to the adjacent utility pole to form a closed space by the coil hanger between the utility poles in a state where the coil hanger is suspended by the first pull cord, and the messenger wire and the second pull are formed at the end of the first pull cord. The messenger wire and the second pull cord are laid together while passing through the closed space of the coil hanger while maintaining the quasi-tension state, and the messenger wire is mounted on a telephone pole and the messenger wire is attached. From the cable hanger, attach the beginning of the cable to the end of the second rope, and pass the cable through the closed space of the coil hanger A cable laying method characterized by laying cables by laying cables in coil hangers suspended from messenger wires. 5. An overhead wire laying method in which an overhead wire called a messenger wire or a cable is stretched aerial, a coil hanger having one end fixed to a power pole, a double anti-back wheel wheel attached to the power pole, and a double wheel with a sensor. The first and the second messenger wires are passed through and negotiated together, and after the first end of the messenger wire is attached to the first lanyard, the first messenger wire and the messenger wire are pulled in a quasi-tensioned state to form a messenger. A messenger wire is mounted on a power pole, and the other end of the coil hanger is attached to a clip fixed to a second tension line in a semi-tight line state. Extend the coil hanger up to the end, fix the other end of the coil hanger to the adjacent utility pole, and form a closed space with the coil hanger between the utility poles The cable hanger is suspended from the messenger wire at the end, the starting end of the cable is attached to the end of the second pull cord, and the cable is extended to the terminal post side so as to pass through the closed space of the coil hanger, and the messenger wire is suspended inside the coil hanger. An overhead wire laying method characterized by laying cables and laying overhead wires. 6. An overhead wire laying method for extending an overhead wire called a messenger wire or a cable overhead, wherein a coil hanger having one end fixed to a power pole, a double anti-back wheel wheel attached to the power pole, and a two-wheeled wheel with sensor are provided. The first hulling cord and the second hulling rope are passed through and hung together, the second hulling rope is fixed to a utility pole and stretched, and a coil hanger is attached to a clip fixed to the first tying line in a semi-tension state. The other end of the coil hanger is extended to the adjacent electric pole by moving the clip together with the first pull cord, and the other end of the coil hanger is fixed to the adjacent electric pole to form a closed space between the electric poles by the coil hanger and the second pulling. Hang the coil hanger from the rope, attach the messenger wire to the end of the first rope, and attach the first rope and the messenger wire to the semi-tight line. The messenger wire is pulled by pulling the messenger wire, the messenger wire is mounted on the pole fitting of the telephone pole, the coil hanger is hung from the messenger wire instead of the second pull cord, and the end of the cable is connected to the end of the second pull cord. A cable laying method characterized by extending a cable to a terminal post side so as to pass through a closed space of a coil hanger after mounting the cable, and laying the cable by laying the cable in a coil hanger suspended by a messenger wire. 7. An overhead wire laying method for extending an overhead wire called a messenger wire or cable overhead, wherein a coil hanger having one end fixed to a power pole, a triple anti-back wheel wheel attached to the power pole and a three-wheeled wheel with sensor are provided. Of the messenger wire after passing through the first, second, and third pull cords, and attaching the first end of the messenger wire to the first pull cord. The messenger wire is laid on the telephone pole, the messenger wire is mounted on the utility pole, and the starting end of the cable is attached to the second lanyard. Attach the other end of the coil hanger to the clip fixed to the third rope in the semi-closed state, and move the clip together with the third rope to adjoin Extending the coil hanger to the pole, fixing the other end of the coil hanger to the adjacent pole, forming a closed space between the poles with the coil hanger, laying the cable on the coil hanger suspended from the messenger wire and laying the overhead wire Overlay laying method. 8. An overhead wire laying method for extending an overhead wire called a messenger wire or a cable overhead, wherein a double anti-back wheel wheel and a sensor wheel wheel attached to a spiral hanger and a telephone pole are provided with two first ropes. After passing through the second pull cord and negotiating with each other, the start and end of the second pull rope are fixed to a utility pole and stretched, and the spiral hanger is inserted into the first pull rope and the second pull rope, and the quasi-cable line A spiral hanger is attached to the first towline in the state, and the spiral hanger is passed between adjacent utility poles to form a closed space by the spiral hanger between the utility poles and the second.
After suspending the spiral hanger from the towline, attaching the messenger wire to the end of the first towline, pulling the first towline and the messenger wire in a semi-closed state, interfering with the messenger wire, and turning the messenger wire into a utility pole A spiral hanger is hung from a messenger wire in place of the second pulling line, and after attaching the starting end of the cable to the second pulling line, the second pulling line and the cable are pulled in a semi-tension state and the cable is suspended. An overhead wire laying method characterized by arranging cables and laying overhead wires in a spiral hanger suspended by messenger wires. 9. The method of laying an overhead wire according to any one of claims 4 to 8, wherein the diameters of the tows used are different from each other, and both the small diameter and the large diameter tow are negotiated. An overhead wire laying method in which a large-diameter dragline hangs downward by its own weight from a small-diameter pullline for negotiation. 10. The overhead wire laying method according to any one of claims 1 to 9, wherein the rotation of a drum in which a messenger wire or cable is wound is braked and the overhead wire is extended from the drum. A wire breaker with multiple brakes is installed, and the rotation of the drum is braked by the wire breaker with multiple brakes. Overhead laying method. 11. The overhead wire laying method according to any one of claims 1 to 10, wherein the anti-back wheel car is attached to all utility poles, and the wheel car with the sensor is installed at each important crossing point and every several spans. An overhead wire laying method characterized by mounting.