JPH0389805A - Moving device on elevated line - Google Patents

Abstract

PURPOSE:To move an inspection equipment continuously along an elevated line by providing a hook mechanism, vertically turning shaft movably provided in a main unit, running wheel supporting arm and a mechanism for clamping a pair of running wheels on the elevated line. CONSTITUTION:A main unit 1 is constituted of a main unit part 3 and a balancer, and the main unit 1 is suspended to an elevated line 70 by running wheels 16, 17 at both end parts of a running wheel supporting arm 13. The elevated line 70 is clamped between the running wheels 16, 17 by clamp mechanisms 20, 21, and the main unit 1 is moved by rotating the running wheels 16, 17 with running wheel driving mechanisms 18, 19. The main unit, when it approaches an obstacle 71, is stopped just before it, and the running wheel 16 is unclamped from the elevated line 70 by the clamp mechanism 20, with the supporting arm 13 swiveled by a swivel mechanism 12, moved to the front and returned onto the elevated line 70 after the running wheel 16 climbs over the obstacle 71. Similarly, the running wheel 17 also climbs over the obstacle 71. Thus, an inspection equipment can be continuously moved along the elevated line 70.

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial Application Field) The present invention relates to an elevated wire moving device used for maintenance and inspection of elevated wires such as high-voltage power transmission lines and overhead cables.

(Prior Art) Conventionally, in the maintenance and inspection of elevated wires, a repair point is discovered using a helicopter or a car, for example, and maintenance work is carried out by approaching the repair point from the ground separately.

Another method is to stretch a steel cable such as a ropeway or ski lift along an elevated line, suspend the maintenance and inspection equipment from this steel cable via a support arm, and then pull the maintenance and inspection equipment by pulling the steel cable. Another method is to move it for maintenance and inspection.

However, the former method has the disadvantage that accurate inspection cannot be performed because the distance from the helicopter or car to the elevated wire is long and observation is biased from one direction. In addition, in the latter case, steel cables must be stretched along the elevated line, which increases equipment costs and has the drawback of being uneconomical.

Therefore, in order to solve this problem, a self-propelled maintenance and inspection device that moves unmanned on the elevated wire has been considered.

FIG. 29 shows an example of this, in which a traction device 101 suspended from an elevated wire 104 is equipped with a disassembler 106 and two running wheels 103. A clamp wheel 105 is provided below these running wheels 103, and this clamp wheel 105 and running wheels 103
It is designed to move with an elevated wire 104 in between. Further, a flaw detector 102 equipped with a sensor body and a recording device 108 is connected to the traction device 101,
The elevated wire 104 is inspected using this flaw detector 102.

(Problem to be Solved by the Invention) By the way, elevated lines such as power transmission lines are usually supported by steel towers, and when the above-mentioned self-propelled maintenance and inspection equipment is used to perform maintenance and inspection of the elevated lines, it is necessary to The supporting steel tower becomes an obstacle. However, in the conventional device as described above, the elevated wire 104 is sandwiched between the running wheel 103 and the clamp wheel 105, and therefore it is not possible to avoid the steel tower.

Furthermore, cable holding fittings such as insulators and clamps are attached to the elevated line, and it was impossible to climb over these cable holding fittings. For this reason, in the past, complicated work such as moving the moving device while handling it in a suspended manner was required for each short straight section, and it was not possible to perform maintenance and inspection work on the elevated line efficiently.

The present invention was made in view of the above-mentioned circumstances, and it is possible to climb over metal fittings such as insulators and clamps attached to elevated wires, and also to avoid steel towers, and allows inspection and monitoring equipment such as television cameras to be mounted on elevated wires. An object of the present invention is to provide an elevated wire moving device that can be moved continuously along.

[Structure of the Invention] (Means for Solving the Problems) In order to solve the above problems, the present invention includes a main body, an arm provided to the main body so as to be relatively movable, and the above-mentioned devices provided at both ends of the arm. A hook mechanism for suspending the arm from the elevated wire, a vertically rotating shaft provided on the main body so as to be movable in the vertical direction and rotational direction, and a running wheel support arm swingably provided at the upper end of the vertically rotating shaft. A pair of running wheels are provided at both ends of the running wheel support arm, and the pair of running wheels are disposed substantially horizontally across the extension axis of the vertically rotating shaft, and a clamp mechanism is provided for clamping these running wheels onto the elevated wire. This is what I did.

(Function) In the present invention, by swinging the running wheel support arm in the vertical direction, it is possible to get over metal fittings such as insulators and clamps attached to the elevated wire. In addition, it is possible to avoid steel towers by using the arm and the hook mechanism provided at both ends of the arm.

(Example) Hereinafter, an example of the present invention will be described with reference to FIGS. 1 to 28.

1 to 3 are a plan view, a front view, and a side view of an elevated line moving device showing an embodiment of the present invention, and this elevated line moving device has a main body on which inspection and monitoring equipment such as a television camera is mounted. 1, and an arm 2 that is movable relative to the main body 1.

The main body 1 is composed of a main body 3 and a balancer 4, and a vertically rotating shaft 5 is provided in the center of the main body 3, passing through the main body 3 in the vertical direction so as to be rotatable and movable up and down.

As shown in FIG. 4, this vertically rotating shaft 5 is formed with a threaded portion 6 and a spline 7, and a nut 8 and a boss 9 that engage with the threaded portion 6 and spline 7 are connected to a transmission mechanism such as a gear, respectively. By driving the motor 10.11 through the vertically rotating shaft 5, the vertically rotating shaft 5 rotates and moves up and down in the axial direction.

Note that when the nut 8 and the boss 9 are rotated at the same speed relative to the main body 1, the vertically rotating shaft 5 only rotates without vertically moving relative to the main body 1, and when only the nut 8 is rotated, the vertically rotating shaft 5 5 does not rotate relative to the main body 1, but only moves up and down. These movements are such that when the main body 1 is suspended from the elevated wire, the vertically rotating shaft 5 does not move in the opposite direction, but the main body 1 and the arm 2 rotate or move up and down relative to the vertically rotating shaft 5. Become.

Further, a swinging mechanism 1 is provided at the upper end of the vertically rotating shaft 5.
2 is provided. A U-shaped or semicircular running wheel support arm 13 is held in this swinging mechanism 12 so as to be able to swing freely, and as shown in FIG. It is designed to oscillate.

Running wheels 16 are provided at both ends of the running wheel support arm 13.
．． 17 are provided so as to be freely rotatable approximately horizontally across the extension axis of the vertically rotating shaft 5, and these running wheels 1
8.17 is driven by a traveling wheel drive mechanism 18.19 to travel on an elevated track.

Additionally, clamp mechanisms 20.21 are provided at both ends of the running wheel support arm 11 to clamp the elevated wire between the running wheels 18.17. As shown in FIGS. 5 and 6, these clamp mechanisms 20.21 include a link mechanism 23 that swings around a shaft 22, and a link mechanism 23 that swings around a shaft 22.
It consists of clamp rollers 24 and 25 rotatably supported by the rollers, and these clamp rollers 24 and 25 are pressed against the running wheels 18 to clamp the elevated wire.

The link mechanism 23 has four links 2 forming a quadrilateral.
8.27.28.29, and the above shaft 22
A locking portion 30 is provided on the link 26 fixed to. A link 29 rotatably supported by a shaft 22 is in contact with this locking portion 30 by the urging force of a spring 31, and the locking portion 30 allows the link 2B to move clockwise by a predetermined angle or more with respect to the link 29. It restricts rotation. Therefore, when the shaft 22 is rotated counterclockwise by the drive device 32 via a transmission mechanism such as a gear, the link mechanism 23
is adapted to swing about the shaft 22 while keeping the quadrilateral shape formed by the links 2B to 29 constant.

Further, the clamp mechanism 20.21 is provided with a stopper 33 that restricts the rotation range of the link 29. When the link 29 comes into contact with this stopper 33, the clamp mechanism 20.21 is clamped by the action of a lever, as shown in FIG. The rollers 24, 25 are pushed upwards and come into contact with the running wheels 18 via the overhead line. Note that the link 27 has a spring 3 in the middle part.
4 is interposed between the links, and the movement of the link after the elevated wire is clamped is absorbed by the spring 34 to keep the clamping force constant. Also,
A guide rod 35 is integrally provided with the link 29, and this guide rod 35 is used when guiding the elevated line under the running wheels 18.

Therefore, the link 28 of the link mechanism 23 swings about the shaft 22 when the drive device 32 is activated.

The link 29 is rotatable around the shaft 22, and is pushed by the link 26 via a spring 31, but the locking portion 3
The rotation range is restricted by 0. These links 26
The angle between the link 26 and the link 29 is usually constant, and the angle between the link 26
The quadrilateral formed by ~29 is kept constant. During such operation, the clamp rollers 24,25 swing about the shaft 22. When the link 26 starts rotating in this state, the link 29 rotates at a predetermined angle.
comes into contact with the stopper 33, and when the link 2B further rotates, the link 29 overcomes the force of the spring 31 while remaining in a stopped state.
Link 2B rotates.

In this case, since the link 29 is stopped, the position of the shaft 38 is also fixed, but when the link 26 further rotates, the shaft 36 at the tip pushes the shaft 37 via the link 27. Then, the shaft 37 pushes the link 2B downward using the shaft 38 as a fulcrum, so that the opposite side of the link 28 pushes the clamp rollers 24, 25 upward by the action of the lever.

When performing such an operation, clamp roller 2
4.25 comes to swing around axis 38.

Then, when the link 2B rotates, the clamp roller 24
, 25 contact the running wheels 18 via the elevated wire, and the link 28 stops moving. When the link 2B further rotates while the link 29 and the link 28 have stopped moving, the spring 34 of the link 27 is compressed, and the force corresponding to the compression is transmitted to the clamp rollers 24 and 25 via the link 28.

In this way, when the running wheels 18 are riding on the elevated wire, the above-described series of operations grips the elevated wire. Furthermore, when the traveling wheels 18 rotate in the gripping state, the clamp rollers 24, 25 are shifted. At this time, even if the link 26 is stopped, the spring 34 compresses and absorbs the swinging needle of the link 28. On the other hand, when the link 26 is rotated in the opposite direction, the link 29 rotates about the shaft 22 while remaining in contact with the locking portion 30.

Next, the balancer 4 will be explained using FIG. 7. The balancer 4 maintains the balance of the main body 1 when the arm 2 is sent out from the main body 3. With the main body 1 as a stationary coordinate system, the arm 2 apparently has a central axis S1 at the center of the arc of the arm 2, and as the arm 2 is sent out, the center of gravity G1 of the arm 2 moves about the central axis S1. Therefore, in response to the movement of the center of gravity G1 of the arm 2, the balancer 4 is swung by a drive mechanism (not shown), and the center of gravity G2 of the balancer 4 is moved to achieve balance. here,
The virtual rocking center axis S2 when the center of gravity G2 moves is:
As shown in the figure, the center of gravity G2 of the balancer 4 and the center of gravity G1 of the arm 1 are G1・Ll−G with respect to the vertically rotating shaft 5.
2・L2 (Ll: distance from the central axis S1 of the arm 2 to the vertically rotating shaft 5), set the virtual swing center axis S2 of the balancer 4 to the vertically rotating shaft 5 at a distance L2 on the opposite side of L1ε. Set. For example, in the case of a semi-disc-shaped balancer 4 as shown in FIG. 1, the center 02 of the arc is the virtual swing center axis S2.1! :Become. In addition, the balancer 4 is connected to the center of gravity G1 of the entire arm 2 and the balancer 4 as shown in FIG.
The center of gravity G2 is G1.11 with respect to the vertically rotating shaft 5.
-G2・fi 2 (R1: Distance from center of gravity G1 to vertically rotating shaft 5, g2: Distance from center of gravity G2 to vertically rotating shaft 5) Control equipment, power sources, etc. are arranged as follows. .

On the other hand, the arm 2 is curved in an arc shape with a constant curvature, and a rack gear 39 (see FIG. 13) is formed on the side surface of the arm 2. This rack gear 39 is engaged with a drive gear 40 (see FIG. 4) provided on the main body 3, and by rotating this drive gear 40 with a drive device 41 such as a motor, the arm 2 is moved relative to the main body 1. It is designed to move relatively.

Note that the rack gear 39 is made of an elastic material.

Additionally, hook mechanisms 41 and 42 are provided at both ends of the arm 2.
are provided, and these hook mechanisms 41 and 42 are hooked onto the elevated wire to avoid obstacles such as steel towers. As shown in FIG. 9, the hook mechanisms 41 and 42 include a raised part 43, a horizontal part 44 provided at the upper end of this raised part 43 in parallel with the arm 2, and a distal end of this horizontal part 44. It consists of a hook 45 and a hook 45.
A tapered retaining member 4B, which is easy to enter from the outside and cannot be removed from the inside, is rotatably provided at the entrance portion of 5 about a shaft 47.

This pull-out prevention member 46 is biased by a spring 48 in the direction of closing the artificial part of the hook 45, thereby preventing the elevated wire from coming off from inside the hook 45. Further, after the above, one end of a wire rope 49 is connected to the stop member 46, and by pulling this wire rope 49 with an operating rod 50 provided on the main body 3, the removal stop member 4B moves the shaft 47. It rotates around the center to open the entrance portion of the hook 45.

Further, the arm 2 is provided with joints 51 and 52, and both ends can be folded by these joints 51 and 52. The joints 51 and 52 are constructed as shown in FIG. 10, with arms 2a and 2 at both ends.
The arm 2a is connected to the connecting shaft 53 that connects the arm 2c on the main body side (2b is not shown).

A spring 54 is provided to bias 2b in the folding direction. Therefore, when expanding the arm 2, the leading roller 5B attached to the main body 3 via the support arm 55 is brought into contact with the side surfaces of the arms 2a and 2b as shown in FIG. By overcoming this, the arms 2a and 2b can be pushed apart.

Furthermore, arms 2a are provided at both ends of the arm 2C.

A hook 58 that engages with a claw portion 57 provided on the shaft 5
It is rotatably provided around 9. This hook 58
is connected to a lock release lever 81 rotatably provided around a shaft 60 via a connecting member B2, and a lock release mechanism 63 provided on the main body 3 as shown in FIG.
By rotating the hook 58 clockwise in the figure, the hook 58 and the claw portion 57 can be disengaged from each other. The lock release lever 61 is urged to rotate counterclockwise in the figure by a spring 64.

In addition, since the arm 2 does not require a driving device, the arm 2 does not have any electric wires, the arm 2 is made of an insulating material (Kevlar FRP), and the detector is made of optical fiber. By using this, arm 2 can be made into a complete electrical insulator, and when running on a ground wire for lightning protection stretched over a power transmission line, it can be used for a long time even if the power transmission line is left live. Arm 2 is safe. In addition, the main body 1
A bumper 65 is attached to prevent contact with the steel tower.

Next, the operation of the elevated wire moving device constructed as described above will be explained with reference to FIGS. 14 to 28.

FIG. 14 is a view showing the state in which the main body 1 is suspended from the elevated wire 70. As shown in the figure, the main body 1 is suspended from the elevated wire 70 by the running wheels 16 and 17 provided at both ends of the running wheel support arm 13. Suspended to 70. When moving the main body 1 from this state, first the overhead wire 70 is clamped between the running wheels 18 and 17 by the clamp mechanisms 20 and 21.

In this state, the main body 1 is moved by rotating the running wheels 16.17 by the running wheel drive mechanism 18.19.

In this manner, when the main body 1 approaches an obstacle such as a cable holding fitting while moving, the main body 1 is first stopped in front of the obstacle 71 as shown in FIG. 15. Next, after the clamp mechanism 20 removes the clamp between the running wheel 1B and the elevated wire 70, the swing mechanism 12 moves the running wheel support arm 1
3. Swing clockwise.

As a result, the center of gravity of the main body 1 moves rearward, and the running wheels 16 are lifted to a height position where they can overcome the obstacle 71, as shown in FIG.

Next, in this state, move the main body 1 forward and drive the running wheels 1B.
The movement of the main body 1 is stopped when the object completely overcomes the obstacle 71. Then, the traveling wheels 16 are returned to the elevated wire 70, and the clamping mechanism 21 is used to connect the traveling wheels 17 and the elevated wire 7.
0, the swing mechanism 12 swings the running wheel support arm 13 counterclockwise. As a result, the center of gravity of the main body 1 moves forward, and as shown in FIG. 17, the running wheels 17 are lifted to a height position where they can overcome the obstacle 71. Therefore, by moving the main body 1 forward in this state, it is possible to overcome obstacles 71 such as cable holding fittings attached to the elevated wire 70. Note that the above-mentioned series of operation flows are described in the first
It is shown in Figure 8.

Further, when the main body 1 approaches a steel tower while moving, the main body 1 is first stopped at a position separated from the steel tower 72 as shown in FIG. Next, the direction of the arm 2 is determined by the vertically rotating shaft 5 of the main body 1 from the side where the arm 2 does not come into contact with the support leg, using information about which direction the support leg of the steel tower 72 supports the elevated wire 70.

For example, when the elevated wire 70 is supported from below as shown in FIG. 19, the vertical swing shaft 5 is rotated 174 times to either the left or right to orient the arm 2 to directly face the steel tower 72. Next, as shown in FIG. 20, both ends of the arm 2 are expanded, and the main body 1 is brought close to the steel tower 72 in this state. Then, when the main body 1 has moved to a position a predetermined distance from the steel tower 72, the main body 1 is stopped and the arm 2 is moved relative to the main body 1.

After the hook mechanism 41 on one side of the arm 2 reaches the other side of the steel tower 72, since the main body 1 is suspended from the elevated wire 70, the swing mechanism 12 swings the arm 2 up and down. As a result, the hook mechanism 41 at the tip of the arm 2 is also moved back and forth and up and down, so that it can be hung on the elevated wire 70 on the other side by sandwiching the steel tower 72.

FIG. 21 shows the hook mechanism 41 in operation. In other words, the hook mechanism 41 uses the information of the elevated line.
It is sent out until it goes under the elevated wire 70. Then, the hook mechanism 41 continues to rise until it is detected that the arm 2 has contacted the elevated wire 70 (contact detection of the upper arm 2, detection of the driving force limit of the swing mechanism (2), etc.).Next, the hook mechanism 41
The pulling back continues until it is detected that the inside of the rising portion 43 has come into contact with the elevated wire 70 (contact detection on the inside of the rising portion, detection of the driving force limit of the turning mechanism, etc.). Further, the lowering of the hook mechanism 4i continues until it is detected that the horizontal portion 43 has contacted the elevated wire 70 (contact detection of the horizontal portion 43, detection of the driving force limit of the swing mechanism, etc.). Finally, the arm 2 continues to be sent out until the hook mechanism 41 hooks onto the overhead line 70.

In this way, the elevated line 70 on the other side across the steel tower 72
If the hook mechanism 41 is caught on the arm 2, then
By sending out the hook mechanism 42, the vertically rotating shaft 5
position it above. Then, vertical movement by the vertically rotating shaft 5 is used, but in this case, since the upper part is suspended by the swinging mechanism 12, the main body 1 moves up and down together with the arm 2.

As a result, the hook mechanism 42 is moved back and forth up and down, and the running wheel 1
6.17, it is hung on the elevated wire 70 on this side of the steel tower 72 (see Figs. 21 and 22).

Thereafter, with the hook mechanisms 41 and 42 hooked onto the elevated wire 70, the clamp mechanisms 20 and 21 are used to clamp the traveling wheels IG.

17 and elevated 1i170 are released.

In this case, as shown in FIG.
If it is located in the direction of movement of the main body 1 beyond 0,
The main body 1 moves on the arm 2 as it is. In addition, in contrast to the swinging direction of the arm 2, the traveling wheel support arm 1
3 is located without going over the elevated wire 70, the main body 1 is once moved on the arm 2 in the opposite direction to the traveling direction, and the running wheels 16 and 17 are lowered by the vertical rotation shaft 5, and the main body 1 is moved under the elevated wire 70. The main body 1 is positioned on the moving direction side.

By the way, when the main body 1 moves on the arm 2, the horizontal balance of the main body 1 may be greatly lost with the imaginary line connecting the hook mechanisms 41 and 42 as an axis.
When you come to the side, your posture will return. As a result, at the intermediate point where the balance is lost, the arm 2 may collide with the support legs of the steel tower 72 or the like. However, in this device, the pan halo 5 is provided on the arm 2 leaving only the running track surface of the main body 1, so the bumper 65 comes into contact with the support leg etc. first, and there is no space between the arm 2 and the support leg. The distance is maintained by the protrusion of the bumper, and the possibility of collision is avoided.

Next, the main body 1, which has arrived at the other side of the steel tower 72, connects the running wheel support arm 13 to the elevated wire 70 using the vertical rotation shaft 5.
with the two running wheels 1 facing toward the desired side.
6. Lift up 17. In this case, if the running wheel support arm 13 interferes with the elevated line 70 and cannot approach it in that position, the running wheels 16 and 17 should be lowered once and the elevated line 70
Try to get under it and then lift it up. Then, the main body 1 is moved directly below the hook mechanism 41 hung on the elevated wire 70. After this, if the guide rods 35 are projected downward near the traveling wheels 16, 17, both of the two guide rods 35 will come into contact with the elevated wire 70 before the position is determined. The direction of the vertically rotating shaft 5 follows the direction of the vertically rotating shaft 5 by contacting these two places. In the following orientation, the orientation of the running wheels 16, 17 corresponds to the orientation of the elevated line 70. From this state, the main body 1 is moved up and down by the vertical rotation shaft 5, and the running wheels 16, 1 are moved up and down.
7 is placed on the elevated wire 70.

Next, after confirming that the running wheels 18.17 are placed on the elevated wire 70, the wire rope 48 is operated to open the entrance portion of the hook 44, and the elevated wire 70 is removed from the hook mechanism 41.42. Then, the arm 2 is pulled back, and the vertically rotating shaft 5 turns the arm 2 in a desired direction with respect to the traveling direction, thereby completing the series of avoidance operations.

The above steel tower avoidance operation can be carried out regardless of the direction in which the arm 2 swings out (swivel angle and inclination), even if the elevated line is bent in any direction (left, right, up, down, or up and down) with respect to the direction of travel with the support leg as the border.
The only difference is that they are basically the same. Note that the above-described series of operation flows are shown in FIG. 23.

Next, the operation when the elevated line moving device of the present invention is attached to an elevated line from the ground will be explained.

First, as shown in FIG. 24, a perch 74 having approximately the same thickness as the elevated wire 70 is provided on a lifting device 73 that raises and lowers a steel tower 72, and the main body 1 is suspended from the horizontal portion 74a of this perch 74. Next, in this state, the lifting device 73 is raised, and when the extension line 75 of the perch 74 reaches a position where it intersects the elevated line 70 horizontally, the lifting device 73 is stopped.

After expanding the arm 2 as shown in FIG. 25, the arm 2 is sent out to hook one of the hook mechanisms 41, 42 to the elevated wire 70, and further hooks the other hook mechanism 41, 42 to the perch 74. In addition, the above perch 74
is rotatably provided on the lifting device 73, and the elevated wire 7
The intersection angle with 0 can be adjusted arbitrarily.

Next, the clamping mechanism 20.21 causes the traveling wheels 16.17 to
After removing the clamps from the perch 74, the main body 1 is moved relative to the arm 2. This causes main body 1 to
As shown in FIG. 6, it moves from the perch 74 side to the elevated wire 70 side.

Once the main body 1 has moved to the side of the elevated wire 70 in this way, the running wheels 16.
．． 17. After that, the hook mechanism 41
．． 42 from the perch 74 and the elevated wire 70, the main body 1 is transferred from the perch 74 to the elevated wire 70.

Note that the arm 2 connects to the elevated line 7 on the other side of the steel tower 72.
If it does not reach 0, as shown in Figure 27, the steel tower 72
If a perch 7B having the same thickness as the elevated wire 70 is provided in the train, the steel tower 72 can be avoided using this perch 7B. Additionally, a perch 7 provided on the lifting device 73
4 is not limited to what is shown in FIG.
As shown in FIG. 8, a perch 77 horizontally attached to the lifting device 73 may be used. Furthermore, when moving from a suspended elevated line to another elevated line, such as an upper or lower elevated line or an adjacent elevated line at the same height,
Perch 74 or perch 77 equipped with a lifting device
It is also possible to use it as a relay point when transferring to elevated lines. Note that the lifting device is not limited to the one described above, and may be one in which a pulley is attached to a steel tower or an elevated wire, and a perch is pulled up with a winch using a wire.

[Effects of the Invention] As explained above, according to the present invention, it is possible to overcome cable holding fittings such as insulators and clamps attached to elevated wires, and it is also possible to avoid steel towers. It is possible to continuously move inspection and monitoring equipment such as the following along the elevated line. Therefore, there is no need to change the equipment every short section as in the past, and maintenance and inspection work on the elevated line can be carried out efficiently.

[Brief explanation of drawings]

1 to 28 are for explaining one embodiment of the present invention, in which FIG. 1 is a plan view of the elevated line moving device, FIG. 2 is a front view thereof, and FIG. 3 is a side view thereof. FIG. 4 is a diagram showing the schematic configuration of the main body, FIGS. 5 and 6 are configuration diagrams of the clamp mechanism, FIGS. 7 and 8 are explanatory diagrams of the balancer, and FIGS.
Fig. 28 is a diagram showing the configuration of the arm, Figs. 14 to 18 are explanatory diagrams of the action for getting over the encampment on the elevated wire, and Figs. 19 to 23 are explanatory diagrams of the action when avoiding the steel tower.
24 to 28 are explanatory diagrams of the operation when the main body is suspended from the ground to an elevated wire, and FIG. 29 is a diagram showing a conventional elevated wire moving device. 1... Main body, 2... Arm, 4... Balancer, 5
... Vertical rotation shaft, 12... Rocking mechanism, 13.
... Running wheel support arm, 16.17... Running wheel,
20.21... Clamp mechanism, 41.42... Hook mechanism, 50.51... Joint, 70... Elevated wire, 7
1... Cable holding fitting, 72... Steel tower.

Claims (1)

[Claims] A main body, an arm movably provided on the main body, a hook mechanism provided at both ends of the arm for suspending the arm from an elevated wire, and a hook mechanism provided on the main body movable in the vertical and rotational directions. a vertically rotating shaft;
A running wheel support arm is swingably provided at the upper end of the vertically rotating shaft, and a pair of running wheels are provided at both ends of the vertically rotating shaft substantially horizontally across the extended axis of the vertically rotating shaft. An elevated line moving device comprising wheels and a clamp mechanism for clamping these running wheels onto the elevated line.