JPS63107406A - Method of laying messenger wire by radio-controlled airship and messenger wire pay-off for laying - Google Patents

Abstract

(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] "Industrial Application Field" The present invention utilizes a radio-controlled airship to carry a Metzenger line for towing a power transmission line during overhead line work in which a power transmission line is installed between support towers. The present invention relates to a method for extending a Messenger wire between support towers, and a Messenger wire feeding device used for carrying out the method.

``Prior art'' Conventionally, as a method for extending the Metsenger line between support towers at the base of a steel tower, there have been methods using manned helicopters, radio-controlled model airplanes, model helicopters, and even balloons. A wire extension method is provided.

``Problems to be solved by the invention'' Among the above methods, the method using manned helicopters is an extremely common method, and is suitable for remote areas such as mountainous areas, but in urban areas such as urban areas it is Due to the above restrictions, flight below an altitude of 300 meters is prohibited, which may make it impossible to carry out line extension work, and there are also problems with safety measures in case of an emergency, so if the helicopter crashes, the crew members Not only is this dangerous, but a situation may occur that poses serious harm to various ground facilities. In addition, methods using radio-controlled model airplanes and helicopters can only extend thin Metsenger wires over short distances (spans) because the load capacity of these model aircraft is small. Connected model aircraft are difficult to maneuver and are prone to stalling and crashing, resulting in poor workability. Furthermore, the method of using balloons simply involves hoisting the Metsenger wire into the air with a large number of balloons, and the flight direction of the balloons cannot be controlled, so it is difficult to say that it is a realistic method of extending the wire.

The present invention solves all of the problems encountered in the above-mentioned prior art at once.In other words, it is a novel method that allows the Messenger line to be safely and efficiently installed over a long span even in the sky above urban areas. The present invention provides a method for extending Senger wire.

The first invention of the present application is to fly an airship from one support tower side to another support tower side by radio control, and to operate the Messenger wire equipped on the airship. The Metsenger wire is fed out from the feeding device, and a portion of the Metsenger wire in the length direction that has been fed out is sequentially fixed at a predetermined position on each support tower, so that the Metsenger wire is This is an overhead wire that spans the area.

The second invention of the present application provides a method for storing wires in an initial wire storage section of a Messenger wire steering device equipped on the airship while the airship flying by radio control is parked in the sky near one of the support towers. The starting end of the falling metsenger wire is dropped to the ground, and then a portion of the falling metsenger wire in the length direction is fixed at a predetermined position on the support tower, and then the airship is moved to the other side by radio control. While flying the metsenger wire toward the support tower of the other support tower, the metsenger wire is sequentially paid out from the delivery drum of the said delivery device, and a part of the paid out metsenger wire in the length direction is fixed to a predetermined part of the other support tower. , the Metsenger wire is connected between at least two support towers.

Further, in carrying out the first or second invention, the airship is equipped with an imaging device to monitor the flight status of the airship or the extension status of the Messenger line.

The Messenger wire feeding device according to the third invention of the present application, which is installed in the airship, includes a feeding drum for winding the Messenger wire, a braking device for the feeding drum, and a device that is operated by radio control. A control mechanism of the braking device, a wire storage box that accommodates the dropping Messenger wire portion on the starting end side of the Messenger wire wound around the feeding drum, an opening/closing lid provided on the wire storage box, and a wireless wire storage box. It consists of a release operation mechanism for the opening/closing lid that is operated by a driver.

Embodiments Hereinafter, a method for extending a Messenger wire using a radio-controlled airship according to the present invention and a Messenger wire feeding device used for carrying out the method will be described with reference to the drawings.

FIG. 1 is an explanatory diagram of the wire extending method according to the present invention, and FIGS. 2 and 3 show an example of a radio-controlled airship used to carry out the method of the present invention and a Messenger wire feeding device equipped therein. In the figure, reference numeral l indicates an airship that flies by radio control. Code 2 is a navigation device, code 3
Reference numeral 4 indicates a Metsenger wire feeding device, and reference numeral 4 indicates an imaging device, which the airship 1 is equipped with.

The airship I, which flies by radio control, has a floating body 11 with an airtight structure filled with helium gas, and is provided with a horizontal stabilizer 12 and a vertical stabilizer 13, as shown in FIG. , has a structure in which the operating device 2, the Metsusenger wire feeding device 3, and the imaging device 4 are installed in a suspended state at the lower part of the floating body 11, and the buoyancy force by the floating body 11 as a whole is provided in a suspended state. The load is approximately balanced with the equipment and equipment being installed.

The navigation device 2 includes an engine and a propeller, and uses a flight radio control device to control the output (propulsive force) of the engine, the direction of the propeller, and both tail wings 12 and 1.
Flight direction and flight speed according to 3 (including hovering state)
It has the function of making adjustments such as

As shown in FIG. 3, the Metsenger wire feeding device 3 is divided into a wire feeding portion 21 and an initial wire storage portion 22, and the wire feeding portion 21 is a support pedestal suspended by the floating body 11. 23, and 2 which is rotatably attached to the support frame 23 and for winding the Messenger wire W.
The feed-out drum 24 is equipped with a braking device 25 that brakes the rotation of the feeding drum 24, a radio control device for operating the braking device 25 by radio control, and a drive unit such as a servo motor. It is comprised of a control mechanism 26, which is attached to the feed drum 24, and a guide roller 27 for guiding the Messenger wire W that is fed out from the feeding drum 24. In addition, the initial wire storage section 22 is integrally connected to the support pedestal 23, and includes a wire storage box 28 that accommodates a part of the Messenger wire W including the starting end as a dropping Messenger wire WA; It is composed of an opening/closing lid 29 that is attached to the lower opening of the wire storage box 28 so as to be openable and closable, and an opening/closing lid release operation mechanism 30 that opens and closes the opening/closing lid 29 by radio control. The mechanism 30 includes a radio receiver, a drive unit such as a servo motor that is operated by a signal received from the radio receiver, and a stopper that releases the opening/closing lid 29 by the drive unit.

The imaging device 4 is composed of a video camera, a recording device, an image transmitting device to the ground, a radio control device for photographing, etc., and a device having a function of operating the video camera by radio control from the ground is applied. .

Note that the ground section G includes various radio control devices and an image receiving device (for receiving wireless signals sent from the image transmitting device).
video equipment, recording equipment, etc.) will be installed. Further, a weight S is attached to the starting end of the Metsenger wire W.

The line extension work will be explained below.

[Loading the Metsenger wire onto the airship] The Metsenger wire W is wound in a continuous state into the two payout drums 24 in the wire payout section 21 of the Metsenger wire payout device 3, and the starting end is initially The line is guided into the wire storage box 28 in the wire storage section 22, and is housed in the required number of turns, such as several tens of meters, as a dropping metsenger wire WA, and placed on the opening/closing lid 29. A weight S is connected to the starting end of the line WA and left hanging as shown in FIG.

[Takeoff of Airship] The airship 1 is taken off and raised by radio control, and is stopped (hovered) in the sky near the first support tower 31A. In this case, the airship 1 can be taken off from an appropriate location (departure and landing site) separated from the support tower 31A and gradually ascend toward the support tower 31A.

[Falling of the starting end of the Metsenger wire] As shown by the airship position [A] in FIG. By operating the opening/closing lid 29 and letting the weight S fall naturally,
Drop the falling Metsenger wire WA to the ground.

[Temporarily fixing the Metsenger wire] A worker on the ground picks up the starting end of the fallen Metsenger wire WA and temporarily fixes it on the ground.

[Movement to the first fixing work point] With the starting end of the falling metsenger line WA temporarily fixed on the ground, move the airship l in the direction of the extension of the straight line connecting the temporary fixing point and the support tower 31A, that is, the first Fly the airship toward the position shown in Figure 1 as the airship position [mouth], and set the falling Metsenger line W.
A intersects the support tower 31A.

[First fixation of the Metsenger wire] A worker waiting on the support tower 31A picks up the falling Metsenger wire WA hanging from the airship 1, and fixes it at a predetermined position on the upper part of the support tower 31A. Fixed to.

[Moving the airship l to the second fixed work point from the airship position Ca] to the second support tower 31B
At the same time, the wire is made to fly in a substantially horizontal state toward , and the control mechanism 26 is operated by radio control to adjust the braking force of the braking device 25, and the Messenger wire W is sequentially fed out from the feeding drum 24 while adjusting the tension. In this way, the airship I is flown to the position shown by the airship position [c] in FIG. 1, and the Metsenger line W is made to intersect with the second support tower 31B.

[Second fixing of the Metsenger wire] A worker waiting at the second support tower 31B picks up the Metsenger wire W hanging from the airship 1 and fixes it to a predetermined part of the support tower 31B. do.

[After the third and subsequent flights and fixings, while flying the airship L at the airship position [Nico [H], repeat the work of letting out the Metsenger wire W and fixing it to the support tower, and fix it to the support tower.] 31
C and a predetermined number of support towers 3]N, and a Messenger wire W is installed overhead.

[Monitoring of Line Extension Work and G2 Records] The flight direction of the airship 1, the extension status of the Metsenger Line W, etc. can be monitored on the ground by operating the imaging device 4 mounted on the airship 1. It can also be recorded on videotape. By monitoring using such an imaging device, the wire running accuracy can be further improved.

[Replacement work with wire and installation of power transmission line 3 Next, in order to install the overhead power transmission line between the support towers 31A to 31N, work of replacing the light Messenger wire W with wire and the overhead line of the power transmission line The work is performed in a conventional manner.

[Supplementary explanation of line extension work] In the work of fixing the Metsenger line W to each of the support towers 31A to 31N, the distance between each support tower span is usually several hundred meters or more, and the above-ground part G between them is not occupied by houses or other buildings. Under conditions where there are various types of buildings, it goes without saying that sufficient consideration must be taken to ensure that the Metsenger line W, which spans between the airship and the support tower, does not affect the ground area G. be.

In this case, the amount by which the Metsenger wire W hangs is
Since this can be reduced by the braking device 25, the airship l
By flexibly setting the flight altitude of the aircraft, it is possible to prevent it from affecting the ground G even if the aircraft is flying horizontally. For example, safety can be ensured by positioning the airship 1 a little higher in the sky above the support tower so that the Messenger line W is above the horizontal state.

Incidentally, the climbing ability, turning radius, etc. of the airship 1 are determined by the capacity 1 of the onboard navigation device 2, but in no-wind conditions or weak wind conditions, it is easy to keep the airship 1 in a so-called hovering state where it remains in the sky. This makes wire extension work easier.

[Other embodiments] In place of the above embodiment, the following can also be used.

(a) During the process of temporarily fixing the Metsenger wire or moving the airship to the first fixing work point, a worker on the ground moves, changes the position of the Metsenger wire, and attaches the Metsenger wire to the worker on the support tower. The receiver should pass the line.

(b) Also, in the preceding paragraph, the movement of workers and the movement of airships may be used together.

(C) In the feeding device, the number of feeding drums is 1.
or 3 or more.

"Effects of the Invention" According to the Messenger wire extending method and its feeding device according to the present invention, the following effects are achieved.

That is, in the first invention, the airship is flown by radio control while the Messenger wire is sent out and connected between the support towers, so in the unlikely event that the airship's function is impaired and it falls, there is no possibility of it falling. Even if a serious situation were to occur, there is no risk of a collision with the ground or an explosion, so even in urban areas where there are many structures such as densely populated areas such as houses and buildings, roads, and overhead power distribution lines, etc. Line extension work over long spans can be easily carried out without exposing workers to danger or causing similar harm to above-ground facilities.

Moreover, the second invention can be said to be an invention in which a pre-process is added to the first invention. After passing through the preliminary process of dropping the starting end of the wire to the ground and fixing a part of the dropping Messenger wire to the support tower, the Messenger wire is connected between the support towers. According to the pre-process, even if the footing around the first support tower is poor, the work process at the beginning of the wire extension work can be carried out efficiently and smoothly.

Furthermore, the metsenger wire feeding device according to the third invention has a particularly special configuration in which the dropping metsenger wire portion at the starting end of the metsenger wire wound around the feeding drum is dropped to the ground by wireless remote control. It is equipped with a wire storage box and its lid opening/closing mechanism, and because it has this configuration, it is possible to carry out the pre-process in the second invention described above.

[Brief explanation of the drawing]

Fig. 1 is an explanatory diagram showing an example of a situation in which the wire extension method according to the present invention is implemented, Fig. 2 is a schematic external side view showing an example of an airship used to carry out the method, and Fig. 3 2 is an enlarged side view of the Messenger wire feeding device portion in FIG. 2. FIG. l...Radio-controlled airship, 2...Operation device, 3...Metsenger line feeding device,
4... Imaging device, 11... Floating object, 12.
...Horizontal stabilizer, 13...Vertical stabilizer, 21
..... Wire feeding section, 22 ..... Initial wire storage section, 23 ..... Support pedestal, 24 ..... Feeding drum, 25...... Braking Device, 26...
...Control mechanism, 27...Guide roller, 28...
...Wire storage box, 29...Opening/closing lid, 30...
...Opening/closing lid release operation mechanism, 31A to 31N...
・Support tower, W...Metsenger line, WA...
...Metsenger wire for falling, G...ground part, S...weight. Applicant: Nisso Sales Promotion Co., Ltd. Fujikura Electric Cable Co., Ltd.
spontaneous)

Claims (4)

[Claims] (1) While flying the airship by radio control from one support tower side to the other support tower side, a messenger line is paid out from a messenger line payout device equipped on the airship, and the messenger line that has been paid out is 1. A method for extending a messenger line using a radio-controlled airship, comprising sequentially fixing a portion in the length direction to a predetermined portion of each support tower, and extending the messenger line between at least two support towers. (2) While the airship flying by radio control is parked in the sky near one of the support towers, the falling messenger wire is stored in the initial wire storage section of the messenger wire feeding device installed on the airship. After dropping the starting end of the falling messenger wire to the ground, and then fixing a portion of the falling messenger wire in the length direction to a predetermined part of the support tower,
While flying the airship toward the other support tower by radio control, the messenger wires are sequentially paid out from the delivery drum of the delivery device, and a portion of the delivered messenger wires in the length direction is sent to a predetermined position on the other support tower. 1. A method for extending a messenger line using a radio-controlled airship, which comprises fixing the messenger line at a site and extending the messenger line between at least two support towers. (3) A radio-controlled system according to claim (1) or (2), characterized in that the airship's flight status or line extension status is monitored using an imaging device equipped on the airship. How to extend messenger lines using airships. (4) A messenger wire pay-out device equipped on an airship that flies by radio control, comprising a pay-out drum for winding the messenger wire, a braking device for the pay-out drum, and a braking device operated by radio control. A control mechanism of the device, a wire storage box that accommodates the falling messenger wire portion on the messenger wire starting end side that is wound around the feeding drum, and an opening/closing lid provided on the wire storage box;
1. A messenger wire feeding device characterized by having a release operation mechanism for the opening/closing lid that is operated by radio control.