JP5777976B2 - Nominal line pulling device and nodal line bridging method - Google Patents

Description

  The present invention relates to a pulling device for a call line and a method for bridging a call line, and in particular, a call line effective for bridging a call line between power poles prior to the replacement of the overhead wire installed between the power poles. The present invention relates to a traction device and a method of bridging a call line.

  Conventionally, as a method of replacing an overhead wire (eg, electric wire, branch line, etc.) spanned between two adjacent power poles while passing over a building or the like, Connect the new line to one end of the old line, and pull the new line from one utility pole side to the other utility pole side while pulling the other end of the old line from the other utility pole side, so that the new Crossing the line is done.

  In this case, the tension of the old line and the new line is adjusted by adjusting the tension of the old line and the new line, for example, by operating the brake of the drum around which the new line is wound. Prevents excessive contact with buildings.

Patent Document 1 discloses a method of replacing an overhead wire (ground wire) using a sag control device.
In this method, two aerial work platforms are placed close to each of the two adjacent power poles, and a sag control device is installed in the bucket of each aerial work vehicle. Position the car bucket above the armrests of each utility pole.

  Then, wrapping grips are attached to both ends of the old ground wire installed between the two power poles, and hooks of ropes wound around the drums of the slack control devices of each bucket are hooked on the respective wrapping grips. Both ends of the wire are cut off from the two power poles, and both ends of the old ground wire are supported between the drums of both sag control devices of both buckets.

  Next, by rotating the drums of both sag control devices and adjusting the tension and sag of the old ground line, operating both work platforms and moving both buckets in the desired direction, the high pressure Lower the old ground line to the ground while avoiding contact with overhead distribution lines.

  On the ground, the winding grips are removed from both ends of the old ground wire, the winding grips are attached to both ends of the new ground wire, and hooks of ropes wound around the drums of the slack control devices of both buckets are hooked on both winding grips.

  In this state, rotate the drums of both slackness control devices to adjust the tension and slackness of the new ground wire, and follow the reverse procedure of removing the old ground wire to place the new ground wire between the two power poles. To be installed.

  Furthermore, as a method of replacing the overhead line, set the self-propelled aircraft on the overhead line (old line) to be replaced, connect the new line to this self-propelled aircraft, and in this state the self-propelled aircraft along the old line A construction method is also known in which a new line is installed between utility poles by running.

JP-A-5-49128

  However, in any of the above construction methods, if rusting has occurred on the overhead wire (old line) to be replaced, by applying tension to the old line or applying a load to the old line, There is a possibility that the old line may be broken, and there is a possibility that the broken old line may hurt an operator or damage a building or the like.

  In addition, the method of running the self-propelled aircraft along the old line is applied because the self-propelled aircraft cannot get over the obstacle if there are obstacles such as insulators in a part of the overhead line to be replaced. Can not do it.

  The present invention has been made in view of the conventional problems as described above, and even if rust is generated on the overhead wire (old line) to be reworked, the old line is disconnected and the worker There is no risk of scratching or damaging buildings, etc. Also, even if there are obstacles such as insulators in the overhead line (old line) to be replaced, the pulling device and the call line of the call line that can be replaced The purpose is to provide a method of transferring

In order to solve the above problems, the present invention employs the following means.
That is, the present invention provides a call line that is bridged between the utility poles prior to the replacement of the overhead line when the overhead line that is installed between the utility poles and partially obstructed is replaced. The traction device is a traction device that is movable along the overhead line in a state where the overhead line is inserted on the inner surface side, and the inner surface is formed in a shape that can get over the obstacle, and partly And a drive source for moving the main body along the overhead wire, the main body having a substantially semi-cylindrical shape. The semi-cylindrical portion is formed integrally with one end of the semi-cylindrical portion, and has a semi-conical portion having a substantially semi-conical shape that gradually increases in diameter toward the tip .

According to the pulling device of the call line of the present invention, the call wire connected to the main body can be bridged between the utility poles by moving the main body along the target overhead line by the drive source. In this case, the main body is formed in a shape that allows the inner surface to get over the obstacle of the overhead wire . Specifically, the main body includes a half cylinder portion formed in a substantially semi-cylindrical shape, and the half cylinder portion. Since it is provided integrally with one end side of the cylindrical part and has a substantially semi-conical half-cone part that gradually increases in diameter as it goes to the tip, it is inside the half-cylinder part and the semi-cone part of the main body. When the main body is moved along the target overhead line while the overhead line is inserted, the half cone part gets over the obstacle of the target overhead line first, and the half cylinder part continuing to the half cone part is formed. Subsequently, the entire body can get over the obstacle by overcoming the obstacle. Therefore, the movement of the main body is not hindered by the obstacle, and the call wire can be bridged between the utility poles.

  Further, in the present invention, a drive source support portion is provided on the opening side of the half cylinder portion, the drive source is provided in the drive source support portion, and the drive source support portion and the drive source It is good also as the attitude | position on the said overhead wire of the half cylinder part and half cone part of a main body being maintained in the stable state.

  According to the pulling device for the nominal line of the present invention, the posture of the half cylinder portion and the half cone portion of the main body on the overhead line is kept stable by the drive source support portion and the drive source provided in the drive source support portion. Will be drunk.

  Furthermore, in the present invention, the drive source may include a propeller that is rotatably provided, a motor that rotates the propeller, and a power source of the motor.

  According to the pulling device for the nominal line of the present invention, the main body moves along the target overhead line by the propulsion force of the propeller by operating the motor and rotating the propeller.

Furthermore, the present invention provides a call line that is bridged between the utility poles prior to the replacement of the overhead line when the overhead line provided between the utility poles and partially obstructed is replaced. A method of crossing over the obstacle, the inner wire being movable along the overhead wire in a state in which the overhead wire is inserted on the inner surface side, A main body provided with a connection part for connecting one end of the nominal line to the part, and a drive source provided on the main body and moving the main body along the overhead wire, the main body being substantially semi-cylindrical A pulling device for a nominal line comprising a half-cylinder part formed on the one-sided part and a semi-cone part having a substantially semi-conical shape, which is provided integrally on one end side of the half-cylinder part and gradually increases in diameter toward the tip. , Call line to the connecting portion of the main body of the traction device Attach one end, the body is moved along the overhead line by the driving source, by giving overcome obstacles of the overhead line, characterized in that the bridging between telephone poles the call line.

As described above, according to the pulling device for the call wire and the call wire bridging method of the present invention, the call wire connected to the main body by moving the main body along the target overhead wire by the drive source. Can be bridged between utility poles. In this case, the main body is formed in a shape that allows the inner surface to get over the obstacle of the overhead wire. Specifically, the main body includes a half cylinder portion formed in a substantially semi-cylindrical shape, and the half cylinder portion. Since it is provided integrally with one end side of the cylindrical part and has a substantially semi-conical half-cone part that gradually increases in diameter as it goes to the tip, it is inside the half-cylinder part and the semi-cone part of the main body. When the main body is moved along the target overhead line while the overhead line is inserted, the half cone part gets over the obstacle of the target overhead line first, and the half cylinder part continuing to the half cone part is formed. Then, by overcoming the obstacle, the entire main body can get over the obstacle, and the movement of the main body is not hindered by the obstacle, and the call line can be bridged between the utility poles.
Therefore, when the target overhead line is replaced, for example, after the call line is bridged between the utility poles, the call line is used, the main line is bridged between the utility poles by the ring method, and the main line is used between the utility poles. The target overhead line (old line) can be removed from and the new line can be bridged between utility poles.
As a result, even if the target overhead line is rusted, the target overhead line will not be disconnected, and the disconnected line will damage the operator or damage the building, etc. There is no, and it is possible to safely carry out the work of replacing the overhead wire.

It is the schematic which showed one Embodiment of the traction apparatus by this invention. It is a left view of FIG. It is explanatory drawing which showed the state which the traction apparatus is moving along the branch line, Comprising: It is explanatory drawing which showed the state which is moving the part of the branch line in which the onion is not provided. It is explanatory drawing which showed the state which is moving the part of the branch line in which the traction device is provided with the onion. It is explanatory drawing which showed the state which is moving the part of the branch line in which the traction device is provided with the onion. It is explanatory drawing which showed the state which is moving the part of the branch line in which the traction device is provided with the onion. It is explanatory drawing which showed the state which has spanned the call wire between the utility poles with the traction apparatus. It is explanatory drawing which showed the state which completed the bridging of the call line between utility poles. It is explanatory drawing which showed the state which has bridged the main line between utility poles. It is explanatory drawing which showed the state which completed the bridge | bridging of the main line between utility poles. It is explanatory drawing which showed the state which removed the old branch line from between utility poles, and bridged the new branch line instead of the old branch line. It is explanatory drawing which showed the state by which the bridging of the new branch line was completed between utility poles. It is explanatory drawing which showed the state which has removed the main line from between utility poles. It is explanatory drawing which showed the state which removed the main line from between utility poles. It is the schematic of a ring.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
1 to 6 show an embodiment of a pulling device for a call wire according to the present invention. The pulling device 1 of the nominal line according to the present embodiment is applicable to the replacement of an overhead wire 22 (for example, an electric wire, a branch line, etc.) installed between the utility poles 20, 21. This is effective when an obstacle 23 (for example, an insulator, a connection sleeve, etc.) is provided in part.
In the present embodiment, the branch line 22 provided between the utility poles 20 and 21 and having an insulation ball 23 for insulation as part of an obstacle is targeted.

  As shown in FIGS. 1 and 2, the pulling device for the nominal line (hereinafter referred to as “traction device 1”) of the present embodiment is movable along the branch line 22 with the branch line 22 inserted through the inner surface side. A main body 2, a drive source support 6 provided integrally with the main body 2, and a drive source 16 provided on the drive source support 6 and moving the main body 2 along the branch line 22.

  The main body 2 includes a substantially semi-cylindrical half-cylindrical portion 3 and a semi-conical semi-conical portion 4 that is integrally provided at one end of the semi-cylindrical portion 3 and gradually increases in diameter toward the tip. The branch line 22 can be inserted through the inner surface side of the half cylinder part 3 and the half cone part 4 of the main body 2.

  The main body 2 is formed of, for example, an insulating material such as a vinyl chloride pipe. In this embodiment, the main body 2 is cut into a semicylindrical shape by cutting the vinyl chloride pipe. The half-cylinder part 3 and the half-cone part 4 are integrally formed by integrally joining them with an adhesive or the like.

  The inner diameter of the semi-cylindrical part 3 of the main body 2 and the minimum inner diameter of the semi-conical part 4 are formed larger than the outer shape of the ball insulator 23 provided on a part of the branch line 22. Further, the maximum inner diameter of the semi-conical portion 4 is slightly larger than the outer shape of the ball insulator 23 in a state where the branch line 22 is inserted into the inner surface side of the main body 2 and the branch line 22 is brought into contact with the inner surface side of the semi-cylindrical shape 3. It is set to be large.

  A low friction member 5 is attached to the inner surfaces of the half cylinder portion 3 and the half cone portion 4 of the main body 2, and the low friction member 5 allows the half cylinder portion 3 and the half cone portion 4 of the main body 2 to be connected to the branch line 22. The frictional resistance therebetween is reduced, and the main body 2 can be smoothly moved along the branch line 22.

  The low friction member 5 has a sheet shape or a tape shape, and is attached to the whole or a part of the inner surface of the semi-cylindrical portion 3 and the semi-conical portion 4 of the main body 2 (at least a contact portion with the branch line 22). It has been. Examples of the low friction member 5 include a sheet or tape made of fluororesin, nylon, nitrile rubber, silicone rubber, or the like.

  The drive source support portion 6 is integrally formed with a pair of leg portions 7, 7 provided integrally on the opening sides at both ends in the longitudinal direction of the half cylinder portion 3 of the main body 2, and the lower surface central portion of both the leg portions 7, 7. It is comprised from the attaching part 11 provided, and the drive source 16 is attached to the attaching part 11. FIG.

  Each leg 7 has a substantially U-shape, and a pair of strip-like vertical legs 8, 8 provided integrally on both edges on the opening side of the half cylinder 3 of the main body 2, It is comprised from the strip-shaped horizontal leg 9 spanned horizontally between the lower ends of the legs 8 and 8. As shown in FIG.

  Both ends of the horizontal leg 9 of each leg 7 are detachably connected between the vertical legs 8 and 8 via screws 10, and the horizontal leg 9 is separated from the vertical legs 8 and 8, so that the half of the main body 2 is separated. The branch line 22 can be inserted through the inner surface side of the cylindrical portion 3 and the semiconical portion 4.

  The mounting portion 11 is formed by integrally forming two horizontal frames 12 and 12 and two vertical frames 13 and 13 in a four-sided frame, and the upper horizontal frame 12 is formed of the legs 7 and 7. The lateral legs 9 and 9 are integrally connected to the bottom center portion. The lower horizontal frame 12 is integrally provided with a protruding portion 14 that protrudes forward in the horizontal direction relative to the front vertical frame 13. The rear vertical frame 13 is provided with a connecting portion 15 for connecting one end of a nominal line.

  The connecting portion 15 is, for example, a hook, a hole provided in the vertical frame 13 or the like, and one end of the call line 25 is connected to the connecting portion 15. The connection unit 15 is not limited to the one having the above-described configuration, and may have any function that can connect one end of the call line 25. The call line 25 is, for example, a synthetic resin rope, and in the present embodiment, an ESLON rope is used as the call line 25.

  Due to the weight of the drive source support 6 and the drive source 16 provided in the drive source support 6, the posture of the half cylinder 3 and the half cone 4 of the main body 2 on the branch line 22 is kept stable. The main body 2 can be moved along the branch line 22 in a state in which the openings of the two half cylinder portions 3 and the half cone portion 4 are directed downward.

  The drive source 16 includes a motor 17 attached to the protruding portion 14 of the attachment portion 11, a propeller 18 attached to the rotating shaft of the motor 17, and a power source 19 of the motor 17 attached to the lateral frame 12 below the attachment portion 11. The motor 17 for rotating the propeller 18 is controlled to be turned on and off by wireless remote operation.

  And in order to bridge the call wire 25 between the utility poles 20 and 21 using the traction device 1 of the present embodiment configured as described above, first, as shown in FIG. 3 and FIG. One end of a call wire 25 is connected to the connecting portion 15, and on one electric pole 20 side, a branch line is installed between the two electric poles 20, 21 on the inner surface side of the half cylinder portion 3 and the half cone portion 4 of the main body 2. 22 is inserted. In this case, the semi-cylindrical portion 3 and the semi-conical portion 4 of the main body 2 are maintained in a posture in which the opening side is directed downward due to the driving source support portion 6 and the weight of the driving source 16 provided in the driving source support portion 6. .

  Then, the motor 17 of the drive source 16 is operated by remote operation and the propeller 18 is rotated, whereby the entire traction device 1 is moved along the branch line 22 by the propulsion force of the propeller 18, and the traction device 1 is moved to the other utility pole. 21 side is reached.

  In this case, the traction device 1 is configured such that the branch line 22 is in contact with the inner surface side of the half tube portion 3 of the main body 2 at the portion of the branch line 22 where the ball 23 is not provided, as shown in FIG. 22 is moved in the direction of the other telephone pole 21.

  Then, when the main body 2 reaches a portion where the onion 23 is provided, as shown in FIG. 4, the upper surface side of the onion 23 comes into contact with the inner surface on the tip side of the half cone portion 4, and the main body 2 advances. As shown in FIG. 5, the top surface side of the ball egg 23 relatively moves in the direction of the semi-cylindrical portion 3 on the inner surface side of the semi-conical portion 4, so that the front end of the main body 2 faces slightly upward. When the main body 2 further advances in this state, as shown in FIG. 6, as the main body 2 advances, the upper surface side of the onion 23 moves the inner surface side of the half cylinder part 3 toward the rear end of the half cylinder part 3. Move relatively. And after the whole main body 2 gets over the ball insulator 23, it returns to the attitude | position shown in FIG. 3, and arrives at the other utility pole 21 side in this state.

  Then, one end of the call wire 25 reaches the other power pole 21 side following the main body 2 of the traction device 1, and the operator removes one end of the call wire 25 from the connection portion 15 on the other power pole 21 side. Thus, as shown in FIG. 8, the call wire 25 can be bridged between the two utility poles 20 and 21.

  Then, after the call wire 25 is bridged between the two power poles 20 and 21, as shown in FIG. 9, the main line with a plurality of rings 27 attached to the other end of the call wire 25 on the one power pole 20 side. 26, one end of the call wire 25 is connected to the other electric pole 21 side, and another operator is connected to the inner side of each ring 27 via a separating portion described later on one electric pole 20 side. By pulling out the main line 26 while passing through the branch line to be replaced (old branch line 22), the call line 25 is removed from between the two utility poles 20 and 21, and the main line 26 is replaced instead of the call line 25 as shown in FIG. It spans between the two utility poles 20 and 21 and supports the old branch line 22 by a plurality of rings 27 of the main line 26.

  Here, as shown in FIG. 15, each ring 27 is composed of a ring-shaped main body 28 that is partially cut off, and a hanging ring 29 that is provided integrally with a part of the main body. The main branch line 22 is inserted into the main body 28 of each ring 27 by passing the old branch line 22 through the inside of the main body 28 through the disconnecting portion of the main body 28. Can do. Moreover, the main line 26 is, for example, a synthetic resin rope having a strength capable of supporting the old branch line 22 and a new branch line 24 described later.

  Then, as shown in FIG. 11, with the old branch line 22 supported via a plurality of rings 27 on the main line 26 spanned between the two utility poles 20 and 21, as shown in FIG. 1, the worker connects one end of the new branch line (new branch line 24) to one end of the old branch line 22, the worker pulls the other end of the old branch line 22 on the other power pole 21 side, and the worker on one power pole 20 side. As shown in FIG. 12, the old branch line 22 is removed from between the two utility poles 20, 21 and the new branch line 24 is bridged between the two utility poles 20, 21.

  And as shown in FIG.13 and FIG.14, the new branch line 24 can be constructed in both the electric poles 20 and 21 by removing the main line 26 between both the electric poles 20 and 21. As shown in FIG.

  In the traction device 1 of the present embodiment configured as described above, when the branch line 22 spanned between the utility poles 20 and 21 is replaced, the main line spanned between the two utility poles 20 and 21. Since the old branch line 22 and the new branch line 24 can be supported by the plurality of rings 27, the old branch line 22 and the new branch line 24 are slackened, and come into contact with the building between the two utility poles 20, 21. There is no such thing.

  In addition, since it is not necessary to apply tension to prevent the old branch line 22 from becoming slack, even if the old branch line 22 is rusted, the old branch line 22 may be broken to damage the operator or the utility pole 20 , 21 is not damaged, and the replacement work of the branch lines 22 and 24 can be performed safely.

  Furthermore, even if the old branch line 22 is provided with an insulation ball insulator 23, the movement of the traction device 1 is not hindered by the ball cage 23. Since it can reach from the utility pole 20 side to the other utility pole 21 side, the work of bridging the call wire 25 between the two utility poles 20, 21 without being affected by the presence of the ball insulator 23, It is possible to safely and reliably perform the work of linking the main line 26 using the main line 26 and the work of replacing the branch lines 22 and 24 using the main line 26.

  In the above description, the traction measure 1 for the call wire according to the present invention is applied to the replacement of the branch lines 22 and 24 installed between the two power poles 20 and 21, but the electric wires connected by the connection sleeve or the like. The present invention may be applied to a reworking operation of a wire, a reworking work of a ground wire partially provided with an obstacle, etc., and in this case, the same effects can be obtained.

DESCRIPTION OF SYMBOLS 1 Pulling device 2 Main body 3 Half cylinder part 4 Half cone part 5 Low friction member 6 Drive source support part 7 Leg part 8 Vertical leg 9 Horizontal leg 10 Screw 11 Mounting part 12 Horizontal frame 13 Vertical frame 14 Protrusion part 15 Connection part 16 Drive Power source 17 Motor 18 Propeller 19 Power source 20 Telephone pole 21 Telephone pole 22 Overhead line (old branch line)
23 Obstacle (Tamako)
24 New branch line 25 Nominal line 26 Main line 27 Ring 28 Body 29 Suspension ring

Claims (4)

A traction device for a call wire that is laid between the power poles prior to the replacement of the overhead wire when the overhead wire that is erected between the power poles and partially obstructed is replaced. ,
In a state where the overhead wire is inserted into the inner surface side, the movable wire can be moved along the overhead wire, and the inner surface is formed in a shape that can overcome the obstacle, and one end of the nominal wire is partially formed A main body provided with a connecting portion to be connected, and a drive source provided on the main body and moving the main body along the overhead wire;
The main body includes a semi-cylindrical portion formed in a substantially semi-cylindrical shape, and a semi-conical portion having a substantially semi-conical shape that is integrally provided on one end side of the semi-cylindrical portion and gradually increases in diameter toward the tip. traction device called line, characterized by comprising. A drive source support portion is provided on the opening side of the half tube portion, and the drive source support portion is provided with the drive source support portion. The pulling device for a nominal line according to claim 1 , wherein a posture of the semi-conical portion on the overhead line is maintained in a stable state. The pulling device for a nominal line according to claim 2 , wherein the drive source includes a propeller rotatably provided, a motor for rotating the propeller, and a power source for the motor. This is a method of bridging the call line that is spanned between the utility poles prior to the replacement of the overhead line when the overhead line that is installed between the utility poles and partially obstructed is replaced. And
In a state where the overhead wire is inserted into the inner surface side, the movable wire can be moved along the overhead wire, and the inner surface is formed in a shape that can overcome the obstacle, and one end of the nominal wire is partially formed A main body provided with a connecting portion to be connected; and a drive source provided on the main body and moving the main body along the overhead wire, the main body having a semi-cylindrical portion formed in a substantially semi-cylindrical shape; , Using a pulling device of a nominal line that is provided integrally with one end side of the semi-cylindrical part and is formed of a semi-conical part having a substantially semi-conical shape that gradually increases in diameter toward the tip ,
One end of a call line is connected to the connection portion of the main body of the traction device, and the main line is moved along the overhead line by the driving source to get over the obstacle of the overhead line, thereby A method of bridging the call line, which is characterized by bridging between telephone poles.

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