JP6300566B2 - Method for adjusting base of power transmission tower, scattering prevention method and scattering prevention device - Google Patents

Description

  TECHNICAL FIELD The present invention relates to a method for adjusting a base of a power transmission tower, a scattering prevention method and a scattering prevention device for preventing scattering of scraps and the like generated during base adjustment of a power transmission tower.

When painting a structure, it is adhering to the surface of the material to be painted (referred to as a “base”) in order to increase the adhesion of the paint (to prevent the performance of the paint film from degrading). An operation to remove kimono, old paint film, etc. (referred to as “base adjustment”) is required.
Here, when adjusting the upper part of steel towers, such as a power transmission tower, since the scaffold is unstable, the large tool which uses both hands cannot be used.
For this reason, conventionally, as disclosed in Patent Document 1, the base of the upper portion of the steel tower is adjusted using a hand tool such as a scraper or a wire brush or an electric tool such as a disk sander.
Moreover, when painting the upper part of a steel tower, it is necessary to take measures so that the paint does not scatter around the steel tower. For this reason, conventionally, as disclosed in Patent Document 1, the periphery of the upper portion of the steel tower is covered with a conductive mesh net to prevent the paint from scattering.
The conductive mesh net disclosed in Patent Document 1 has an effect (air resistance) due to wind pressure because the mesh opening (interval) is set small so that the paint does not pass through, and the wind blows. And inflates. When the conductive mesh net covering the upper part of the power transmission tower swells by wind, the conductive mesh net may come into contact with the wire (power line) suspended on the upper part of the power transmission tower.
Therefore, in the past, the work was done with a conductive mesh net attached only on days with mild wind, and the conductive mesh net was removed when work was not done on windy days or nights. It was.

JP 2003-190869 A

As in the prior art, when adjusting the base of the upper part of the transmission tower using a hand tool such as a scraper or wire brush or a small electric tool such as a disk sander, it is difficult to adjust the base such as around the bolt or the narrow part. In order to improve the adhesion of the paint, it is necessary to reliably adjust the base material such as around the bolt and the narrow part.
However, as described above, since the scaffolding is unstable in the upper part of the transmission tower, a large tool with high base adjustment work accuracy (which can reliably adjust the base around bolts and narrow parts) is used. Is difficult. Moreover, it is difficult to temporarily install necessary facilities. Furthermore, when using such a large-sized tool, it is necessary to take measures so that debris and the like generated at the time of substrate preparation are not scattered around the transmission tower. For this reason, conventionally, it was thought that it was difficult to improve the precision of the base adjustment of the upper part of a power transmission tower.
The present invention was devised in view of the above points, and while preventing scraps and the like generated at the time of adjusting the base material of the transmission tower, particularly the upper part of the transmission tower, from being scattered around the transmission tower, An object is to provide a technique capable of easily and surely adjusting a substrate such as a narrow part or a narrow part.

The present invention is configured as follows. In addition, the following invention is used when performing the work (substrate adjustment) to remove deposits or old coatings adhering to the substrate in order to improve the adhesion of the paint before painting the power transmission tower. It is done. Moreover, although this invention is used suitably when adjusting the base of the upper part of a power transmission tower, it can also be used when adjusting locations other than the upper part of a power transmission tower. Of course, it can also be used when adjusting the base of various steel towers other than the power transmission tower.
The “upper part of the power transmission tower” corresponds to at least a region including a part to which a bracelet part on which a wire (power line) is suspended is attached (for example, “upper tower part”).

1st invention is related with the base-material adjustment method of a power transmission tower.
In the present invention, the base of the power transmission tower is adjusted using an air blast tool while the periphery of the power transmission tower is covered with the anti-scattering sheet and the periphery of the anti-scattering sheet is covered with the protective net.
The air blasting tool removes deposits and old coatings adhering to the surface of the substrate by blasting a polishing material (blasting material) onto the surface of the substrate using compressed air (blasting) . The air blast tool can be operated in a state where an operator holds it with one hand. As the scouring material, a known scouring material suitable for adjusting the base material of the transmission tower can be used. For example, garnet is used.
Preferably, the air compressor that supplies the compressed air is disposed in the lower part of the power transmission tower. The air blast tool is attached to a suspension member such as a rope, and the suspension member is arranged to be movable along the movement guide.
The anti-scattering sheet is configured to prevent the paint used when coating the power transmission tower after adjusting the foundation from scattering around the power transmission tower. The anti-scattering sheet of the present invention includes a paint-absorbing sheet having a paint-absorbing property that absorbs a paint used when painting a power transmission tower, and a plurality of meshes (mesh) stacked on at least one surface of the paint-absorbing sheet. ). The mesh sheet is preferably stacked at least on the power transmission tower side of the paint absorbing sheet. The paint absorbing sheet and the mesh sheet are integrated in a stacked state. For example, they are joined using an adhesive or by heat-sealing, or are sewn using a thread. Preferably, the paint absorbing sheet is removably accommodated in a storage space formed by a mesh sheet.
The mesh sheet is formed by weaving a material resistant to rain, heat, or the like, for example, a polyester material. Further, as the mesh sheet, a mesh sheet that does not easily pass through the paint, has a small influence (air resistance) due to wind, and does not apply an excessive load to the power transmission tower via the mesh sheet is used. For example, a mesh sheet having an opening (interval between eyes) of 0.5 mm to 5 mm, preferably 1 mm to 3 mm is used.
As the paint absorbing sheet, a sheet having paint absorbability and air permeability is preferably used. The paint absorbability of the paint absorbing sheet is set according to the characteristics of the paint used. For example, when an oil-based paint is used, a paint-absorbing sheet that is formed of a lipophilic material and absorbs the oil-based paint is used. When a water-based paint is used, a paint-absorbing sheet that is formed of a hydrophilic material and absorbs the water-based paint is used. The paint absorption sheet can be formed of various materials. Suitably, a paint absorption sheet comprises a nonwoven fabric sheet.
By using the anti-scattering sheet including the paint absorbing sheet, it is possible to prevent not only the paint used at the time of painting but also the dust generated at the time of substrate preparation including the polishing material.
Since the anti-scattering sheet has a paint absorbing sheet having paint absorbability that absorbs the paint, the air resistance is larger than that of the mesh sheet alone. For this reason, there exists a possibility that a scattering prevention sheet may swell with a wind. In the present invention, the protection net is arranged to prevent the scattering prevention sheet from being swollen by the wind and coming into contact with the overhead wire (power transmission line) suspended from the upper part of the power transmission tower. As the protective net, a net having a strength that can suppress the swelling of the anti-scattering sheet so that the influence of the wind pressure (air resistance) is smaller than that of the anti-scattering sheet and the anti-scattering sheet does not contact the interference line. For example, a net having a raschel knitting of a material made of ripplon (polypropylene) and a mesh opening (interval) of 30 mm is used.
In the present invention, by using an air blasting tool that is easy to handle, it is possible to easily and reliably adjust the base material such as bolts and narrow parts at the upper part of the power transmission tower where the scaffolding is unstable. In addition, the anti-scattering sheet that can prevent the paint used when painting the power transmission tower is placed around the power transmission tower, so not only the paint used during painting but also the air blast tool was used. It is also possible to prevent scattering of scraps and the like generated during substrate adjustment. In addition, a protective net is installed around the anti-scattering sheet to prevent the anti-scattering sheet from being swollen by the wind, preventing the anti-scattering sheet from coming into contact with the wires suspended on the power transmission tower. can do. In particular, the anti-scattering sheet is placed around the power transmission tower and the protective net is placed around the anti-scattering sheet, so the base using paint and air blasting tools used during painting is available regardless of the wind direction. It is possible to prevent scattering of debris and the like generated at the time of adjustment, and to prevent swelling of the scattering prevention sheet due to wind.
In addition, the scattering prevention sheet | seat of this invention can raise the scattering prevention effect of a coating material cheaply, without making the mesh sheet | seat fine.
In the different form of 1st invention, the suction type air blast tool or the pressurization type air blast tool is used as an air blast tool . The suction type air blasting tool sucks and injects the abrasive using the negative pressure generated by flowing compressed air. The pressurized air blasting tool supplies compressed air into the abrasive material container and raises the pressure to inject the abrasive material at a stretch.
In this embodiment, the abrasive material storage container can be disposed on the upper part of the power transmission tower together with the air blast tool, so that it is not necessary to provide equipment for supplying the abrasive material to the upper part of the power transmission tower.

2nd invention is related with the scattering prevention method of a power transmission tower used when adjusting the foundation | substrate adjustment of a power transmission tower using an air blast tool .
In the present invention, the periphery of the power transmission tower is covered with the scattering prevention sheet, and the periphery of the scattering prevention sheet is covered with the protective net.
The anti-scattering sheet includes a paint absorbing sheet having a paint absorbability for absorbing paint used when painting a power transmission tower, and a mesh sheet having a plurality of meshes (mesh) stacked on at least one surface of the paint absorbing sheet. It is comprised by. As the scattering prevention sheet, the scattering prevention sheet used in the above-described ground tower adjustment method for a power transmission tower can be used.
As the protective net, a net having a strength that can suppress the swelling of the anti-scattering sheet so that the influence of the wind pressure (air resistance) is smaller than that of the anti-scattering sheet and the anti-scattering sheet does not contact the interference line. As the protective net, the protective net used in the above-described ground tower adjustment method for the transmission tower can be used.
In the present invention, the scattering prevention sheet disposed so as to cover the periphery of the power transmission tower prevents not only the paint used when painting the power transmission tower but also the scattering of debris and the like generated during the preparation of the substrate using an air blast tool. can do. Moreover, the protection net | network arrange | positioned so that the circumference | surroundings of a scattering prevention net | network may be covered, and it can prevent that a scattering prevention sheet swells with a wind and contacts the interference wire currently suspended by the power transmission tower. Thereby, the air blast tool which can perform base adjustment with high precision can be used.

3rd invention is related with the scattering prevention apparatus of a power transmission tower used when performing the base adjustment of a power transmission tower using an air blast tool .
The present invention includes a scattering prevention sheet disposed so as to cover the periphery of the power transmission tower and a protective net disposed so as to cover the periphery of the scattering prevention sheet. The anti-scattering sheet includes a paint absorbing sheet having a paint absorbability for absorbing paint used when painting a power transmission tower, and a mesh sheet having a plurality of meshes (mesh) stacked on at least one surface of the paint absorbing sheet. It is comprised by.
As the protective net, a net having a strength that can suppress the swelling of the anti-scattering sheet so that the influence of the wind pressure (air resistance) is smaller than that of the anti-scattering sheet and the anti-scattering sheet does not contact the interference line.
In the present invention, the scattering prevention sheet disposed so as to cover the periphery of the power transmission tower prevents not only the paint used when painting the power transmission tower but also the scattering of debris and the like generated during the preparation of the substrate using an air blast tool. can do. Moreover, the protection net | network arrange | positioned so that the circumference | surroundings of a scattering prevention net | network may be covered can prevent that a scattering prevention sheet swells with a wind and contacts the interference wire currently suspended by the power transmission tower. Thereby, the air blast tool which can perform base adjustment with high precision can be used.
In the different form of 3rd invention, the coating material absorption sheet is comprised with the nonwoven fabric sheet.
In this embodiment, since the nonwoven fabric sheet is used as the paint absorbing sheet, a scattering prevention sheet that is lightweight and has desired characteristics can be manufactured at low cost.
In another different form of the third invention, the mesh sheet has a first mesh sheet and a second mesh sheet that are stacked on both sides with the paint absorbing sheet interposed therebetween. Separate mesh sheets may be used as the first mesh sheet and the second mesh sheet. Alternatively, one mesh sheet can be folded at the folded portion, and one side can be used as the first mesh sheet and the other side can be used as the second mesh sheet across the folded portion.
In this embodiment, since the strength can be secured by the first and second mesh sheets stacked on both surfaces of the paint absorbing sheet, it is not necessary to use a paint absorbing sheet having strength, and the manufacturing is performed at a lower cost. Can do.
In another different form of the third invention, an accommodation space having an opening is formed by the mesh sheet. And the coating material absorption sheet is accommodated in the accommodation space so that extraction is possible from an opening part. The accommodation space may be formed by separate first mesh sheet and second mesh sheet, or may be formed by folding one mesh sheet.
In this embodiment, since the paint absorbing sheet can be exchanged, a paint absorbing sheet having paint absorbability and strength that can be used once to several times can be used, and can be manufactured at a lower cost.
In another different form of the third invention, the anti-scattering sheet is arranged so that it can be stored on one side of the left and right sides, preferably in the vicinity of the main column member as seen from the horizontal direction. For example, the upper end portion of the anti-scattering sheet is supported in a curtain shape by a support member extending along the horizontal direction, and one end portion along the horizontal direction is fixed in the vicinity of the main pillar material. And the power transmission tower will be in the state covered with the scattering prevention sheet | seat by moving the edge part of the other side along the horizontal direction of the scattering prevention sheet | seat to the other direction side along a horizontal direction. On the other hand, the scattering prevention sheet is accommodated on one side along the horizontal direction by moving the other end of the scattering prevention sheet along the horizontal direction to the one direction side along the horizontal direction. It becomes.
Further, the protective net is arranged so that it can be stored on the upper side when viewed from the horizontal direction. For example, the upper end of the protective net is fixed. Then, by winding the protective net upward from the lower end, the protective net is housed on the upper side along the vertical direction. On the other hand, by releasing the winding of the protective net, the scattering prevention sheet (or power transmission tower) is covered with the protective net.
Even when the protective net is disposed on the outer periphery of the scattering prevention sheet, the scattering prevention sheet and the protection net may swell and come into contact with the interference line suspended on the power transmission tower in a strong wind. In the prior art disclosed in Patent Document 1, when there is a possibility that the conductive mesh net may come into contact with the interference wire, the conductive mesh net is removed and then attached again. In this embodiment, since the scattering prevention sheet and the protection net can be stored, when the scattering prevention sheet and the protection net may swell and come into contact with the interference line, such as during strong winds, the scattering prevention sheet and There is no need to remove and install the protective net. Thereby, the time and labor required for substrate adjustment can be reduced.

By using the method for grounding a power transmission tower according to the present invention, the method for preventing scattering, and the device for preventing scattering, it is possible to prevent debris and the like generated during the ground adjustment of the power transmission tower using an air blast tool from scattering around the power transmission tower. However, it is possible to easily and reliably adjust the base material around the bolt and the narrow portion.

It is a figure which shows one Embodiment of the method of covering the circumference | surroundings of the upper tower part of a power transmission tower with a scattering prevention sheet | seat and a protection net. It is the II-II arrow directional view of FIG. It is the figure which looked at FIG. 2 from the arrow III direction. It is a figure which shows one Embodiment of the air blasting apparatus used by this invention. It is a figure which shows other embodiment of the air blasting apparatus used by this invention. It is a figure which shows 1st Embodiment of a scattering prevention sheet. It is a VII-VII arrow directional view of FIG. It is a figure which shows 2nd Embodiment of a scattering prevention sheet | seat. It is the IX-IX line arrow directional view of FIG. It is a figure which shows 3rd Embodiment of a scattering prevention sheet | seat. It is a XI-XI line arrow directional view of FIG. It is a figure which shows one Embodiment of the method of covering the circumference | surroundings of the armrest part of a power transmission tower with a scattering prevention sheet | seat and a protection net. It is the figure which looked at FIG. 12 from the arrow XIII direction.

Embodiments of the present invention will be described below with reference to the drawings. In the following, a case will be described in which the base is adjusted to remove deposits, old coatings, and the like attached to the base in order to enhance the adhesion of the paint before the upper part of the power transmission tower is painted.
The present invention is preferably used when adjusting the base of the upper part of the transmission tower, but can also be used when adjusting the base other than the upper part of the transmission tower. Of course, it can also be used when adjusting the base of various steel towers other than the power transmission tower.

An example of a power transmission tower is shown in FIG.
The power transmission tower 10 shown in FIG. 1 has a lower tower body part 20, an upper tower body part 30, and a brace part 35.
The lower tower part 20 is composed of a main column member 21, a horizontal member 22, a diagonal member 23, an auxiliary member 24, and the like, and has a rectangular plane cross section (horizontal cross section). The upper tower part 30 is comprised by the main pillar material 31, the horizontal material 32, the diagonal material 33, etc., and the plane cross section has a quadrangle | tetragon. The arm metal part 35 is composed of an arm metal main material 36, an arm metal suspension material 37, and the like. The arm metal main material 36 and the arm metal suspension material 37 are attached to the main pillar material 31 constituting the upper steel tower 30. A power transmission wire (power transmission line) 40 is suspended from the brace main material 36 .
The “upper part of the power transmission tower” of the present invention is at least a region where the arm metal part 35 (arm metal main material 36, arm metal suspension material 37) is attached (in the power transmission tower 10 shown in FIG. 1, the upper tower body part 30). Corresponds. In addition, you may include the brace part 35 in "the upper part of a power transmission tower."

  One embodiment of a method for covering the periphery of the upper tower body 30 with the anti-scattering sheet 100 and the protective net 200 when the base tower 30 of the power transmission tower 10 is adjusted and painted is shown in FIGS. It is shown. FIG. 1 is a view of the power transmission tower 10 in which the periphery of the upper tower body 30 is covered with the anti-scattering sheet 100 and the protective net 200 as viewed from the horizontal direction. 2 is a view taken along the line II-II in FIG. 1, and FIG. 3 is a view of FIG. 2 viewed from the direction of arrow III.

A scatter prevention sheet 100 is disposed around the upper tower body 30 of the power transmission tower 10. In the present embodiment, as shown in FIG. 2, four scattering prevention sheets 100a to 100d are arranged around the main pillar members 31a to 31d forming a quadrangle. The configuration of the scattering prevention sheet 100 will be described later.
The scattering prevention sheet 100 (100a-100c) is arrange | positioned so that accommodation is possible.
For example, as shown in FIG. 3, the anti-scattering sheet 100 c is provided on a support member 310 made of FRP (fiber reinforced plastic) disposed so as to extend along the horizontal direction on the upper portion of the upper tower body 30. It is supported in the form of a curtain. That is, the upper end portion of the anti-scattering sheet 100c is supported so as to be developed along the support member 310 or stored on one side along the horizontal direction. One end portion (for example, the left end portion) along the horizontal direction of the scattering prevention sheet 100c is an auxiliary member made of FRP (fiber reinforced plastic) attached to the main column member 31d of the upper tower body 30. It is fixed with a string or the like. Further, the other end portion (for example, the right end portion) of the scattering prevention sheet 100c along the horizontal direction is fixed to a rope arranged so as to extend along the vertical direction by a string or the like.
Thereby, when the rope is moved to the one direction side (for example, the left direction) along the horizontal direction (the other end portion of the scattering prevention sheet 100c along the horizontal direction), the scattering prevention sheet 100c becomes horizontal. It is stored on one side (for example, the left side) along the direction. On the other hand, when the rope is moved to the other direction side (for example, the right side) along the horizontal direction (the other end of the scattering prevention sheet 100c along the horizontal direction), the scattering prevention sheet 100c is moved horizontally. Unfold along. Thereby, it will be in the state where the circumference | surroundings between the main pillar materials 31c and 31d of the upper tower part 30 were covered with the scattering prevention sheet | seat 100c.
In addition, in the state which accommodated the scattering prevention sheet 100 (100a-100c) in the one side along the horizontal direction (preferably the vicinity of the main pillar material 31), bundling the accommodated scattering prevention sheet 100 with a binding material is carried out. preferable. As the binding material, for example, a polypropylene (PP) rope, a binding band, a connection ring (carabiner), or the like is used.

If the scattering prevention sheet 100 is swollen by wind, the scattering prevention sheet 100 may come into contact with the wire 40. In the present embodiment, the protection net 200 is disposed around the scattering prevention sheet 100 in order to prevent the scattering prevention sheet 100 from being swollen by wind and coming into contact with the interference wire 40.
The protection net 200 has a strength that can suppress the swelling of the anti-scattering sheet 100 so that the influence (air resistance) of the wind speed is smaller than that of the anti-scattering sheet 100 and the anti-scattering sheet 100 does not contact the interference line 40. A net is used. For example, a net having a raschel knitting of a material made of ripplon (polypropylene) and a mesh opening (interval) of 30 mm is used.
In the present embodiment, similarly to the scattering prevention sheet 100, four protection nets 200a to 200d are arranged around the main pillar members 31a to 31d forming a quadrangle (around the scattering prevention sheets 100a to 100d).
For example, as shown in FIG. 3, the protective net 200 c is fixed to a support member 320 made of FRP, which is arranged so as to extend in the horizontal direction at the upper part of the upper tower body 30, with a string or the like. ing.
As a result, when the protective net 200c is wound upward (in the direction of the support member 320) from the lower end along the vertical direction, the protective net 200c is stored in the upper side along the vertical direction of the upper tower body 30. Is done. On the other hand, when the winding of the protective net 200c is released, the protective net 200c is deployed along the vertical direction. Thereby, the circumference | surroundings of the scattering prevention sheet | seat 100c (or between the main pillar materials 31c and 31d of the upper tower part 30) will be in the state covered with the protection net | network 200c.
In a state where the protective net 200 (200a to 200d) is wound up (stored) in the vertical direction, it is preferable that the wound protective net 200 is bundled with a binding material. As the binding material, for example, a polypropylene (PP) rope, a binding band, a connection ring (carabiner), or the like is used.

  A method for housing the scattering prevention sheet 100 and the protection net 200 can be selected as appropriate. For example, the same storage method (for example, a storage method for storing by moving in a curtain shape, a storage method for storing by winding) can be used. Moreover, the position which accommodates the scattering prevention sheet | seat 100 and the protection net | network 200 can be selected suitably. For example, they can be stored in the same position (for example, one side along the horizontal direction and the upper side along the vertical direction).

  In the present invention, as a method for adjusting the base of the upper part of the power transmission tower, an air blasting method is used in which a cleaning material (blasting material) (sometimes referred to as “grinding material”) is injected using compressed air. The air blasting method removes deposits and old coatings attached to the surface of the substrate by blasting a blasting material (blasting material) onto the surface of the substrate using compressed air (blasting) Is the method. The air blast method does not require large-scale equipment. In addition, the air blasting tool used in the air blasting method is easy to handle because the operator can operate it while holding it with one hand.

A first embodiment of an air blasting apparatus used in the present embodiment will be described with reference to FIGS. The air blasting apparatus shown in FIG. 4 injects the abrasive using negative pressure generated by flowing compressed air (referred to as “suction blasting”).
The air blasting device shown in FIG. 4 has an air blasting tool (suction type air blasting tool) 410, a polishing material container 500, an air compressor 600, an air tank 620, and the like. The air blast tool 410 includes a nozzle 411, a polishing material suction part 412, a grip 413, a lever 414, and an attachment part 415. In the abrasive material container 500, an abrasive material for removing deposits, old paint film, and the like adhering to the substrate is accommodated. As the scouring material, a known scouring material suitable for adjusting the base of the power transmission tower is used. For example, garnet (garnet) is used.
The compressed air compressed by the air compressor 600 is accumulated in the air tank 620 via the compressed air supply hose 610. The compressed air accumulated in the air tank 620 is supplied to the air blast tool 410 via the compressed air supply hose 630.
When the operator operates the lever 414 while holding the grip 413 of the air blast tool 410, compressed air is jetted from the nozzle 411 through the scouring material suction part 412. At this time, the scouring material suction unit 412 sucks the scouring material stored in the scouring material container 500 through the suction hose 510 by the negative pressure generated by the flow of compressed air, and the nozzle 411. Inject from.

In the present embodiment, the air compressor 600 is disposed below the power transmission tower 10, and the air tank 620 is disposed on the upper part of the power transmission tower (a place where the base is adjusted), and the compressed air supply hose 610 is supplied from the air compressor 600. Compressed air is supplied to the air tank 620 via.
Further, the worker holds the air blast tool 410 connected to the air tank 620 via the compressed air supply hose 630 and the abrasive material storage container 500 connected to the air blast tool 410 via the suction hose 510. Make substrate adjustments in the same condition.
Note that the air blast tool 410 and the compressed air supply hose 630 are preferably suspended using a suspension member that can move in the work area along the movement guide. For example, a suspension member such as a rope that can move in the work area along the movement guide is attached to the attachment portion 415 of the air blast tool 410. Thus, work efficiency improves by performing substrate adjustment in the state where air blast tool 410 and compressed air supply hose 630 were suspended using a suspension member. The abrasive material storage container 500 may be carried by an operator hanging on the waist, or may be suspended using a suspension member that can move along the movement guide.

A second embodiment of the air blasting apparatus used in the present embodiment will be described with reference to FIG. The air blasting apparatus shown in FIG. 5 supplies compressed air into the abrasive material container, raises the pressure, and injects the abrasive material at once (referred to as a “pressurized blast system”).
The air blasting device shown in FIG. 5 includes an air blasting tool (pressurizing air blasting tool) 420, an air compressor 800, an abrasive material container 900, and the like. The air blast tool 420 includes a nozzle 421, a grip 423, a lever 424, and a mounting portion 425. Abrasive material is accommodated in the abrasive material container 900.
The compressed air compressed by the air compressor 800 is supplied to the abrasive material container 900 via the compressed air supply hose 810.
When the operator operates the lever 424 while holding the grip 423 of the air blasting tool 420, the blasting material together with the compressed air from the scouring material container 900 passes through the blasting material supply hose 910 and the air blasting tool 420. And is ejected from the nozzle 421.
In the present embodiment, the air compressor 800 and the scouring material container 900 are disposed below the power transmission tower 10, and the blast material together with the compressed air from the scouring material container 900 via the scouring material supply hose 910. Is supplied to the air blast tool 420.
Note that the air blast tool 420 and the abrasive supply hose 910 are preferably suspended using a suspension member that can move in the work area along the movement guide.

In the present embodiment, the periphery of the upper part of the power transmission tower 10 is covered with the scattering prevention sheet 100. Thereby, since the waste etc. which generate | occur | produce when performing foundation | substrate adjustment using an air blast tool cannot pass the scattering prevention sheet 100, they are withheld in the scattering prevention sheet 100. FIG.
In the present embodiment, a dust collector 700 is disposed below the power transmission tower 10, and the inside of the scattering prevention sheet 100 (working area) and the dust collector 700 are connected by a dust collection hose 710. As a result, dust or the like held in the scattering prevention sheet 100 is removed by the dust collector 700.

Next, an embodiment of the scattering prevention sheet 100 will be described below. The scattering prevention sheet 100 is configured by a scattering prevention member.
The scattering prevention member 110 of the first embodiment is shown in FIGS. In addition, FIG. 7 is a VII-VII line arrow view of FIG.
The scattering prevention member 110 according to the present embodiment includes mesh sheets 111 and 112 and a nonwoven fabric sheet 113, and has a square shape (including a substantially square shape) in plan view. The mesh sheets 111 and 112 are stacked on both surfaces of the nonwoven fabric sheet 113 (the nonwoven fabric sheet 113 is disposed between the mesh sheets 111 and 112). That is, the scattering prevention member 110 of the present embodiment has a three-layer structure.
The mesh sheets 111 and 112 have a plurality of meshes (mesh), and are formed by weaving a material resistant to rain, heat, or the like, for example, a polyester material. In addition, the mesh sheets 111 and 112 are meshes that do not easily pass the paint used at the time of painting, are less affected by wind (air resistance), and do not apply an excessive load to the power transmission tower 10 via the mesh sheets 111 and 112. A sheet is used. In particular, the size of the mesh sheets 111 and 112 is selected in consideration of the load applied to the power transmission tower 10 via the mesh sheets 111 and 112. For example, a mesh sheet having an opening (interval between eyes) in the range of 0.5 mm to 5 mm, preferably in the range of 1 mm to 3 mm is used. When a mesh sheet having such an eye size is used, the paint may pass through the mesh sheets 111 and 112 or the paint adhering to the mesh sheets 111 and 112 may be scattered during a strong wind.
The nonwoven fabric sheet 113 has a paint absorptivity which absorbs the paint used at the time of painting. The paint absorbability of the nonwoven fabric sheet 113 is set according to the characteristics of the paint used during painting. For example, when an oil-based paint is used, it is formed with a lipophilic material so as to have a paint-absorbing property that absorbs the oil-based paint. Moreover, when a water-based paint is used, it is formed so as to have a paint-absorbing characteristic that absorbs the water-based paint with a hydrophilic material. Moreover, the nonwoven fabric sheet 113 has air permeability. Preferably, a nonwoven fabric sheet having high air permeability (low air resistance) and capable of reducing the wind pressure load applied to the power transmission tower 10 through the scattering prevention member 110 including the nonwoven fabric sheet 113 is used. It is done.
One of the mesh sheets 111 and 112 corresponds to the “first mesh sheet” of the present invention, and the other corresponds to the “second mesh sheet” of the present invention. The nonwoven fabric sheet 113 corresponds to the “paint absorbing sheet” of the present invention.

The mesh sheets 111 and 112 and the nonwoven fabric sheet 113 are integrated in an overlapped state. For example, as shown in FIG. 6 and FIG. 7, the mesh sheets 111 and 112 and the nonwoven fabric sheet 113 are connected by a connecting portion 114 along the outer peripheral edge. The connecting portion 114 is formed by, for example, sewing with a sewing thread or joining. As a bonding method, a bonding method using an adhesive, a bonding method in which heat fusion is performed by heating, or the like can be used. The mesh sheets 111 and 112 and the nonwoven fabric sheet 113 may be sewn together with sewing threads, the entire surface may be joined with an adhesive, or the entire surface may be heat-sealed. May decrease.
Further, the scattering preventing member 110 is provided with a connecting portion 115 along the outer periphery for connecting the scattering preventing member 110 adjacent in the left-right direction or the vertical direction. In the present embodiment, holes penetrating the mesh sheets 111 and 112 and the nonwoven fabric sheet 113 are formed, and eyelets are attached to the formed holes. The eyelet hole is used as the connecting portion 115. As a method of connecting adjacent scattering prevention members 110, for example, as shown in FIG. 11, a method of connecting opposing connecting portions 115 with a string 180 is used. The connecting portion 115 corresponds to the “connecting portion” of the present invention, and the string 180 corresponds to the “connecting member” of the present invention.
In addition, as the connection part 115, members which can be opened and closed, such as a fastener, and removable members, such as a hook-and-loop fastener, can also be used. In this case, the connecting portion 115 corresponds to the “connecting portion” and the “connecting member” of the present invention (the connecting portion 115 includes the “connecting portion” and the “connecting member” of the present invention).

  In FIG. 6, a three-layer structure is configured using (two) mesh sheets 111 and 112 formed separately from the nonwoven sheet 113, but a three-layer structure using the nonwoven sheet 113 and one mesh sheet. Can also be configured. That is, a three-layer structure is configured by folding one mesh sheet at a folded portion and disposing the nonwoven fabric sheet 113 between the folded one mesh sheet. In this case, one side of the folded portion corresponds to the “first mesh sheet” of the present invention, and the other side corresponds to the “second mesh sheet” of the present invention.

  Since the scattering prevention member 110 of the present embodiment can ensure a desired strength by the mesh sheets 111 and 112, the nonwoven fabric sheet 113 (paint absorbing sheet) should have paint absorbability and breathability. It just needs to be strong. For this reason, the cheap and lightweight scattering prevention sheet which has a higher paint scattering prevention effect than the paint scattering prevention effect at the time of using only a mesh sheet can be obtained.

The nonwoven fabric sheet has a paint absorptivity and does not require strength, and therefore has a shorter life than a mesh sheet. For this reason, it is preferable to comprise a nonwoven fabric sheet so that replacement | exchange is possible. The scattering prevention member 120 of 2nd Embodiment comprised so that replacement | exchange of a nonwoven fabric sheet was shown by FIG. 8, FIG. FIG. 9 is a view taken along line IX-IX in FIG.
The scattering prevention member 120 according to the present embodiment includes mesh sheets 121 and 122 and a nonwoven fabric sheet 123, and has a square shape (including a substantially square shape) in plan view. As the mesh sheets 121 and 122, the same mesh sheets as the mesh sheets 111 and 112 of the first embodiment can be used. Moreover, as the nonwoven fabric sheet 123, the nonwoven fabric sheet similar to the nonwoven fabric sheet 113 of 1st Embodiment can be used.

In the scattering prevention member 120 of the present embodiment, the nonwoven fabric sheet 123 is accommodated in the accommodation space 120a having an opening.
That is, the mesh sheets 121 and 122 are connected by the connecting portion 124 along the outer periphery in a state where they are overlapped. Here, the connection part 124 is not formed in the location corresponding to an opening part. Thereby, the mesh sheets 121 and 122 form an accommodation space 120a having an opening.
The nonwoven fabric sheet 123 is accommodated in the collection space 120a through the opening. In this Embodiment, since it is not connected with the nonwoven fabric sheet 123 and the mesh sheet 121 or 122, the nonwoven fabric sheet 123 accommodated in the accommodation space 120a can be taken out from the collection space 120a through an opening part.
Further, the scattering preventing member 120 is provided with connecting portions 125a and 125b for connecting the scattering preventing member 120 adjacent in the left-right direction or the vertical direction along the outer periphery. As the connection parts 125a and 125b, the same connection part as the connection part 115 of 1st Embodiment can be used. In the present embodiment, the connecting portion 125a passes through the mesh sheets 121 and 122 that are overlaid. On the other hand, the connection part 125b provided in the location corresponding to the opening part accommodates the nonwoven fabric sheet 123 in the accommodation space 120a through the opening part or removes the mesh sheet 121 or 122 from the accommodation space 120a. Only penetrates. The connecting portion 125b may be provided only on one of the mesh sheets 121 or 122.

In the scattering prevention member 120 shown in FIG. 8, the accommodation space 120a is formed by the separate (two) mesh sheets 121 and 122, but the accommodation space 120a may be formed by using one mesh sheet. it can. For example, one mesh sheet is bent at a bent portion. And the part of the both sides of a bending part is connected by the connection part along outer periphery, and the accommodation space which has an opening part is formed.
Moreover, although the opening part always opened was used, the opening part which can be opened and closed can also be used. For example, the mesh sheets 121 and 122 are connected by a detachable connecting portion at a position corresponding to the opening. Furthermore, the entire periphery or the outer periphery excluding the folded portion can be connected by a detachable connection portion. As the detachable connecting portion, a fastener, a hook-and-loop fastener, or the like can be used.

This embodiment has the same effect as that of the first embodiment.
Furthermore, in this Embodiment, a nonwoven fabric sheet (paint absorption sheet) can be exchanged. Thereby, the nonwoven fabric sheet (paint absorption sheet) which can be used once to several times and has a paint absorbability and strength can be used, and a cheaper scattering prevention sheet can be obtained.

When connecting connection parts, such as a hole, with connection members, such as a string, a clearance gap generate | occur | produces between connection parts by wind, and there exists a possibility that a coating material may scatter from the clearance gap between this connection parts. A scattering prevention member 130 according to the third embodiment provided with a connecting portion cover member that covers the connecting portion is shown in FIGS. Note that FIG. 11 is a view of the scattering prevention member 130 connected from the direction of the line XI-XI in FIG.
The scattering prevention member 130 according to the present embodiment includes mesh sheets 131 and 132 and a nonwoven fabric sheet 133, and has a square shape (including a substantially square shape) in plan view. As the mesh sheets 131 and 132, the same mesh sheets as the mesh sheets 111 and 112 of the first embodiment can be used. Moreover, as the nonwoven fabric sheet 133, the nonwoven fabric sheet similar to the nonwoven fabric sheet 113 of 1st Embodiment can be used. The mesh sheets 131 and 132 and the nonwoven fabric sheet 133 are connected by a connection part 134 along the outer periphery. As the connection part 134, the connection part similar to the connection part 114 of 1st Embodiment can be used.
Further, the scattering prevention sheet member is provided with a connecting portion 135 along the outer periphery for connecting the scattering prevention member 130 adjacent in the left-right direction or the vertical direction. As the connection part 135, the connection part similar to the connection part 115 of 1st Embodiment can be used. Further, as a connecting member for connecting the connecting portion 135, a connecting member similar to the connecting member of the first embodiment can be used.

Furthermore, the scattering prevention member 130 according to the present embodiment is provided with connecting portion cover members 140, 150, 160, and 170 on the main body configured by the mesh sheets 131 and 132 and the nonwoven fabric sheet 133. The connecting part cover members 140, 150, 160, and 170 are formed in a shape that can cover the connecting part 135. The connecting portion cover members 140, 150, 160, and 170 are preferably provided on the side of the main body that faces the power transmission tower (coating object) 10 (the mesh sheet 132 side in FIG. 10). Thereby, the operation | work which connects the connection cover members 140, 150, 160, 170 of the adjoining scattering prevention member 130 can be performed inside the power transmission tower 10. In the present embodiment, a bellows is used as the connecting portion cover members 140, 150, 160, and 170. Here, when the anti-scattering member 130 is arranged in the left-right direction, the connecting portion cover members 140 and 150 arranged in the left-right direction are paired, and when the anti-scattering member 130 is arranged in the vertical direction, the up-down direction The connecting portion cover members 160 and 170 arranged in the above form a pair.
In the present embodiment, the connecting portion cover members 140, 150, 160, and 170 are configured in a three-layer structure using a mesh sheet and a non-woven fabric sheet, similarly to the main body portion. Of course, the structure of the connection part cover members 140, 150, 160, and 170 is not limited to this as long as the paint scattering can be prevented by the scattering preventing member 130.

The connecting portion cover member 140 is connected (fixed) to at least one of the mesh sheets by the connecting portion 144 (in FIG. 10, fixed to the mesh sheets 131 and 132 and the nonwoven fabric sheet 133), and a fixing portion 140A. The movable portion 140B extends from the fixed portion 140A to the outer peripheral side (leftward in FIG. 10) along the left-right direction. And the connection part 145 is provided in the movable part 140B.
The connecting portion cover member 150 is connected (fixed) to at least one mesh sheet by the connecting portion 154, and extends from the fixing portion 150A to the outer peripheral side (rightward in FIG. 10) along the left-right direction. The movable part 150B is provided. And the connection part 155 is provided in the movable part 150B. As the connection parts 145 and 155, the connection part similar to the connection part 115 of 1st Embodiment can be used.
The connecting portion cover member 160 is connected (fixed) to at least one mesh sheet by the connecting portion 164, and extends from the fixing portion 160A to the outer peripheral side (upward in FIG. 10) along the vertical direction. The movable portion 160B is provided. And the connection part 165 is provided in the movable part 160B.
The connecting portion cover member 170 is connected (fixed) to at least one mesh sheet by the connecting portion 174, and extends from the fixing portion 170A to the outer peripheral side (downward in FIG. 10) along the vertical direction. The movable part 170B is provided. And the connection part 175 is provided in the movable part 170B. As the connection parts 165 and 175, the connection part similar to the connection part 115 of 1st Embodiment can be used.
The connection positions of the connection parts 145, 155, 165, and 175 of the connection part cover members 140, 150, 160, and 170 are configured not to overlap with the connection position of the connection part 135 of the scattering prevention member 130. In this Embodiment, it is comprised so that the length (length of the direction which opposes) of the movable part of the connection part cover member used as a pair may differ. In FIG. 10, the length in the left-right direction of the movable portion 140 </ b> B of the connecting portion cover member 140 to be paired is set short, and the length of the movable portion 150 </ b> B in the connecting portion cover member 150 is set to be long. Further, the vertical length of the movable portion 160B of the connecting portion cover member 160 is set short, and the vertical length of the movable portion 170B of the connecting portion cover member 170 is set long.

FIG. 11 shows a state in which the scattering prevention members 130 of the present embodiment are arranged in a horizontal direction and are connected, as viewed from the direction of the line XI-XI in FIG. In addition, although not shown in FIG. 11, the power transmission tower is arrange | positioned at the lower side (connection part cover member side).
A connecting portion 135 provided along the circumferential direction on the right side of the scattering prevention member 130 disposed on the left side, and provided along the circumferential direction on the left side of the scattering prevention member 130 disposed on the right side. The connecting portions 135 are connected by a string 180 that is a connecting member. Further, the connecting portion 155 provided on the movable portion 150B of the right connecting portion cover member 150 of the scattering preventing member 130 provided on the left side, and the left connecting portion of the scattering preventing member 130 provided on the right side. The connection part 145 provided in the movable part 140B of the part cover member 140 is connected by the string 180 which is a connection member. At this time, the movable portion 140B of the left connecting portion cover member 140 of the scattering prevention member 130 disposed on the right side and the movable portion 150B of the right connecting portion cover member 150 of the scattering prevention member 130 disposed on the left side. the connecting portion 135 of the anti-scattering member 130 is arranged on the right and the coupling portion 135 of the scattering prevention member 130 disposed on the left side is covered. Further, the connecting portion between the connecting portion 145 provided in the movable portion 140B of the connecting portion cover member 140 and the connecting portion 155 provided in the movable portion 150B of the connecting portion cover member 150 is the connecting portion of the scattering prevention member 130. It is offset so as not to overlap the connecting portion 135 (is deviated to one side in a lateral direction with respect to the connecting portion of the connecting portion 135).
Similarly, when the anti-scattering members 130 are arranged side by side in the vertical direction, similarly, the movable portion 170B and the lower side of the connecting portion cover member 170 on the lower side of the anti-scattering member 130 arranged on the upper side are arranged. The anti-scattering member 130 is disposed below the connecting portion 135 of the anti-scattering member 130 disposed on the upper side by the movable portion 160B of the upper-side anti-scattering member 130 connecting portion cover member 160. The connecting portion 135 is covered. And the connection location of the connection part 175 provided in the movable part 170B of the connection part cover member 170 and the connection part 165 provided in the movable part 160B of the connection part cover member 160 is the connection part of the scattering prevention member 130. It is offset so as not to overlap the connecting portion 135 (is shifted to one side in the vertical direction than the connecting portion of the connecting portion 135).

  In FIG. 10, a three-layer structure is configured using (two) mesh sheets 131 and 132 formed separately from the nonwoven sheet 133, but a three-layer structure is formed using the nonwoven sheet 133 and one mesh sheet. It can also be configured. That is, a three-layer structure is configured by folding one mesh sheet at a folded portion and disposing the nonwoven fabric sheet 133 between the folded mesh sheets.

This embodiment has the same effect as that of the first embodiment.
Furthermore, in the present embodiment, the connecting portion cover member covers the connecting portions of the adjacent scattering prevention members, so that even when a gap is formed between the connecting portions by the wind, the paint is scattered through the gap. Can be prevented.

In the third embodiment, as in the second embodiment, an accommodation space having an opening is formed by separate mesh sheets or one mesh sheet, and the nonwoven fabric sheet is opened in the accommodation space. It can also be configured to be removable via the section.
In this case, the same effect as in the second embodiment is obtained.

Next, the operation | movement at the time of substrate adjustment and coating of the upper tower part 30 of the power transmission tower 10 is demonstrated.
As shown in FIGS. 1 to 3, the anti-scattering sheet 100 (100 a to 100 d) is attached so as to be arranged around the upper tower body 30 of the power transmission tower 10, and the protective net 200 (200 a to 200 a is used). 200d) is attached so as to be arranged around the anti-scattering sheet 100. At this time, the scattering prevention sheet 100 and the protection net 200 can be arranged at a position away from the power transmission tower 10 by an auxiliary member made of FRP attached to the power transmission tower 10.
In this state, the base tower 30 of the power transmission tower 10 is adjusted and painted using an air blast tool.
On the other hand, when the wind is strong and the scattering prevention sheet 100 may swell and come into contact with the interference line 40 or when the work is stopped at night or the like, the end of one side along the horizontal direction of the scattering prevention sheet 100 is set in the horizontal direction. The anti-scattering sheet 100 is accommodated on the other side along the horizontal direction. Further, the protection net 200 is housed upward along the vertical direction by rolling up the lower end of the protection net 200 upward. At this time, it is preferable that the shatterproof sheet 100 and the protective net 200 in the housed state are bound by a binding member.
When resuming the work, the scattering prevention sheet 100 is deployed around the power transmission tower 10 by moving one end portion along the horizontal direction of the scattering prevention sheet 100 to one side along the horizontal direction. Return to the normal state. Further, by releasing the winding of the protective net 200, the protective net 200 is returned to the state where the protective net 200 is deployed around the scattering prevention sheet 100.

  Next, an embodiment of a method for covering the periphery of the arm metal part 35 with the anti-scattering sheet 100 and the protective net 200 when the base metal part 35 of the power transmission tower 10 is adjusted and painted is shown in FIGS. Will be described. FIG. 12 is a view of the power transmission tower 10 in which the periphery of the armrest portion 35 is covered with the anti-scattering sheet 100 and the protective net 200 as viewed from above. FIG. 13 is a diagram when FIG. 12 is viewed from the direction of arrow XIIIII. In addition, when the base metal part 35 is adjusted and painted, power transmission to the wire 40 suspended from the arm part is stopped.

In the present embodiment, as shown in FIG. 12, the inner side of the inner side of the upper tower part 30, the side part on both sides of the armband part 35 along the extending direction of the interference line 40. The five anti-scattering sheets 100e to 100i are arranged around the upper part and the lower part on the upper side along the vertical direction.
The scattering prevention sheet 100 (100e-100i) is arrange | positioned so that accommodation is possible.
For example, the anti-scattering sheets 100e and 100f that cover the side portions of the armband portion 35 are arranged on one side (preferably, the upper tower portion) along the direction (horizontal direction) intersecting with the extending direction of the wire 40. 30 is supported by the support member in the form of a curtain so that it can be stored in the interior 30). Alternatively, the upper end is fixed to the support member so that the lower side can be retracted and stored on the upper side.
The scattering prevention sheet 100g covering the inside of the armband part 35 is supported by the support member in a curtain shape so that it can be stored on one side along the extending direction (horizontal direction) of the wire 40. Alternatively, the upper end is fixed to the support member so that the lower end can be wound.
The anti-scattering sheet 100h covering the upper part of the armband part 35 and the anti-scattering sheet 100i covering the lower part are arranged on one side (preferably the inner side of the upper tower part 30) or in the direction intersecting the interference line 40 or The support member is supported in a curtain shape so that it can be housed on one side along the extending direction of the wire 40.
In addition, five protective nets 200e to 200i are disposed around the scattering prevention sheets 100e to 100i so as to be housed. As a storage method for storing the protective nets 200e to 200i, a storage method for storing the protective nets 200e to 200i by moving them in a curtain shape, or a storage method for storing them by winding them can be used.
In the state where the anti-scattering sheets 100e to 100i and the protective nets 200e to 200i are housed, it is preferable to bundle them with the above-described binding material.

When the base metal part 35 of the power transmission tower 10 is adjusted and painted, power transmission to the wire hung from the arm metal part 35 is stopped, and the scattering prevention sheet 100 ( 100e-100i) and protective net 200 (200e-200i) are arranged. In this state, the base metal part 35 is adjusted and painted using an air blast tool.
On the other hand, the scattering prevention sheet 100 and the protection net 200 are housed when the wind is strong and the scattering prevention sheet 100 may swell and come into contact with the interference line 40 or when the work is stopped at night or the like.
In addition, when adjusting the base of the armband part 35, the base adjustment may be performed in a state where only the anti-scattering sheets 100e to 100i and the protective net 200i covering the lower part of the armband part 35 are arranged.
Further, when painting the armband part 35, the anti-scattering sheet 100 i and the protection net 200 i that cover the lower part of the armor part 35, the anti-scattering sheets 100 e to 100 g that cover the side part and the inside of the armor part 35, and the protection You may perform coating in the state which has arrange | positioned only the leeward scattering prevention sheet | seat and the protection net | network among nets 200e-200g.

The present invention is not limited to the configuration described in the embodiment, and various changes, additions, and deletions are possible.
The method for storing the scattering prevention sheet and the protective net and the storage position are not limited to the method described in the embodiment. For example, the same storage method can be used and stored in the same storage position.
The protective net is preferably disposed so as to cover the entire periphery of the anti-scattering sheet, but may be disposed so as to cover only a portion that may come into contact with the interference line due to the bulge caused by the wind. For example, a protective net is arranged around the anti-scattering sheet located on the windward side with respect to the interference line.
The planar shape of the anti-scattering sheet (the anti-scattering member constituting the anti-scattering sheet) is not limited to a quadrangle (including a substantially quadrilateral), and can be formed in various shapes.
In the embodiment, the nonwoven fabric sheet is used as the paint absorbing sheet having paint absorbability and air permeability. However, various sheets other than the nonwoven fabric sheet can be used as the paint absorbing sheet.
In the embodiment, mesh sheets are stacked on both surfaces of a paint absorbing sheet (for example, a nonwoven sheet) (the paint absorbing sheet is disposed between the mesh sheets), and the mesh sheet is at least one surface of the paint absorbing sheet. Preferably, it should just be piled up in the surface of the side which opposes a coating object among both surfaces of a paint absorption sheet.
Various changes can be made to the shape and location of the connecting portion cover member that covers the connecting portion of the anti-scattering member. Further, the connecting portion cover member can be omitted.
In addition, as a method of connecting the scattering prevention sheet and the connecting portion cover member, a method of connecting by a hole and a string, a method of connecting using an openable / closable member such as a fastener, and a removable member such as a hook-and-loop fastener Various methods can be used including methods of linking.
The configurations described in each embodiment can be used alone or in combination with appropriately selected configurations.

DESCRIPTION OF SYMBOLS 10 Transmission tower 20 Lower tower part 21 Main pillar material 22 Horizontal material 23 Diagonal material 24 Auxiliary material 30 Upper tower body part 31, 31a-31d Main pillar material 32 Horizontal material 33 Diagonal material 35 Arm metal part 36 Arm metal main material 37 Arm metal Suspension 40 Overhead wire (transmission line)
100, 100a to 100i Anti-scattering sheet 110, 120, 130 Anti-scattering member 111, 112, 121, 122, 131, 132 Mesh sheet 113, 123, 133 Non-woven fabric sheet 114, 124, 134, 144, 154, 164, 174 Joining Part (connection part)
115, 125a, 125b, 135, 145, 155, 165, 175 hole (connection part)
140, 150, 160, 170 Connecting part cover member 180 Connecting member 200, 200a-200i Protective net 310, 320 Support member 410, 420 Air blast tool 411, 421 Nozzle 412 Abrasive material suction part 413, 423 Grip 414, 424 Lever 415, 425 Mounting portion 500 Abrasive material container 510 Suction hose 600, 800 Air compressors 610, 630, 810 Compressed air supply hose 620 Air tank 700 Dust collector 710 Dust collector hose 900 Abrasive material container 910 Abrasive material supply hose

Claims (8)

A method for adjusting the foundation of a transmission tower,
Cover the periphery of the transmission tower with a scattering prevention sheet, and with the protective net covering the periphery of the scattering prevention sheet, adjust the foundation of the transmission tower using an air blast tool,
The scattering prevention sheet includes a paint absorbing sheet having a paint absorbability for absorbing a paint used for painting a power transmission tower, and a mesh sheet having a plurality of meshes stacked on at least one surface of the paint absorbing sheet ; Composed of
The protective net is composed of a net having a lower air resistance than the scattering prevention sheet,
The air blasting tool is configured to inject a polishing material using compressed air . A method for adjusting a base of a power transmission tower according to claim 1,
A method for adjusting the base material of a power transmission tower, wherein a suction type air blast tool or a pressure type air blast tool is used as the air blast tool . A method for preventing scattering of a power transmission tower used when adjusting the foundation of the power transmission tower using an air blast tool ,
Cover the periphery of the transmission tower with a scattering prevention sheet, cover the periphery of the scattering prevention sheet with a protective net,
The scattering prevention sheet includes a paint absorbing sheet having a paint absorbability for absorbing a paint used for painting a power transmission tower, and a mesh sheet having a plurality of meshes stacked on at least one surface of the paint absorbing sheet ; Consisting of
The said protection net | network is comprised with the net | network with a smaller air resistance than the said scattering prevention sheet | seat , The scattering prevention method of the power transmission tower characterized by the above-mentioned . A device for preventing scattering of a transmission tower used when adjusting the foundation of the transmission tower using an air blast tool ,
An anti-scattering sheet arranged to cover the periphery of the transmission tower;
Comprising a protective net arranged to cover the periphery of the anti-scattering sheet;
The scattering prevention sheet includes a paint absorbing sheet having a paint absorbability for absorbing a paint used for painting a power transmission tower, and a mesh sheet having a plurality of meshes stacked on at least one surface of the paint absorbing sheet ; Consisting of
The said protection net is comprised by the net whose air resistance is smaller than the said scattering prevention sheet | seat , The scattering prevention apparatus of the power transmission tower characterized by the above-mentioned . It is a scattering prevention apparatus of the power transmission tower of Claim 4, Comprising:
The paint-absorbing sheet is made of a nonwoven fabric sheet. It is a scattering prevention device of a power transmission tower according to claim 4 or 5 ,
The said mesh sheet | seat has the 1st mesh sheet | seat and the 2nd mesh sheet | seat piled up on both sides on both sides of the said paint absorption sheet | seat, The scattering prevention apparatus of the power transmission tower characterized by the above-mentioned. It is a scattering prevention apparatus as described in any one of Claims 4-6,
A storage space having an opening is formed by the mesh sheet,
The paint-absorbing sheet is accommodated in the accommodation space so as to be able to be taken out from the opening. It is a scattering prevention apparatus of the power transmission tower as described in any one of Claims 4-7,
The scattering prevention sheet is disposed so that it can be stored on one of the left and right sides when viewed from the horizontal direction,
The said protection net | network is arrange | positioned so that accommodation is possible upwards seeing from a horizontal direction, The scattering prevention apparatus of the transmission tower characterized by the above-mentioned.

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