JP7461076B1 - Inspection method - Google Patents

Abstract

[Problem] To provide an inspection method that can improve the workability of inspection work. [Solution] An inspection method that includes an inspection tool attachment step of replacing an inspection tool that is portable by a person who performs inspection work and that is detachably attached to a tubular body extending in a predetermined direction with another inspection tool having a different function and detachably attaching the other inspection tool to the tubular body, or additionally detachably attaching another inspection tool with a different function to the tubular body to which the inspection tool is detachably attached, and an inspection step of inspecting an object to be inspected using the inspection tool detachably attached to the tubular body. [Selected Figure] None

Description

The present invention relates to an inspection method. Specifically, the invention relates to, for example, an inspection method for concrete structures.

Due to the need to reduce life cycle costs, effectively utilize resources, and reduce the environmental impact of construction projects, there is a need to significantly extend the lifespan of concrete structures.

In order to meet these demands, regular inspections and surveys of concrete structures are carried out, and repair work is carried out as necessary.

Inspection work on concrete structures is work that mainly involves visual inspection of the structure to check for damage such as floating concrete, exposed reinforcing bars, and corrosion.
Further, specific methods for inspecting concrete structures include a long-range visual inspection and a close-up visual inspection.

Distance visual inspection is an inspection method in which damage and deformation are visually confirmed by walking as close as possible to a concrete structure using binoculars or the like.
In addition, close-up visual inspection is an inspection method that uses a ladder or aerial work vehicle to get close to a concrete structure to the point where palpation and hammering inspections can be carried out to examine the damage and deformation in detail. .

For example, when conducting a close-up visual inspection of a concrete structure, the concrete surface is struck with a hammer, and the sound produced is used to determine whether the area is sound or deteriorated, and the state of damage is examined.
However, when using a hammer for inspection, the inspection is carried out by repeatedly striking the concrete surface with each blow, meaning that the concrete surface is inspected at "points," and it is not possible to inspect the areas between the points, which means that it is easy to overlook areas of deterioration.

Therefore, inspection methods using various inspection instruments have been proposed.
For example, Patent Document 1 describes that, as shown in FIG. 4, an inspection worker performs a tapping sound inspection work using an inspection instrument 100.
Here, the inspection instrument 100 includes a rolling part 110, a support rod 120, and a grip part 130.
Further, the rolling section 110 includes a support shaft 111 attached to the tip of a support rod 120, and a rolling ball 112 rotatably supported at the tip of the support shaft 111.
Further, the rolling element 112 is a polyhedron having a regular hexagonal cross-sectional outline, and its outer circumferential surface is equally divided into rolling surfaces each consisting of six cylindrical surfaces.

The inspection worker holds the grip portion 130 in his/her hand and presses the rolling striker 112 against the concrete surface 201 , and shakes the support rod 120 while pressing the rolling striker 112 against the concrete surface 201 .
As a result, since the cross-sectional outer shape of the rolling striker 112 is a regular hexagon, the rolling striking surface strikes the concrete surface 201 every 60 degrees rotation around the central axis O, generating an impact sound, allowing for percussion inspection along a "line" rather than a "point" like with a hammer.

Utility Model Registration No. 3230739

Inspection work on concrete structures involves not only hammering inspection, in which the rolling surface of a rolling striker is used to strike the concrete surface, but also marking work in which parts of the concrete structure where dull sounds are detected during the hammering inspection work are done with chalk or other tools, and imaging work in which images of the inspection points of the structure are taken to record the inspection results, etc.
When performing these inspection tasks, different tools are used for each inspection task.

When inspecting concrete structures, especially bridges, etc., in order to get closer to the inspection point on the bridge, move from the ground to a high place where the inspection work is being carried out, such as the top of a ladder leaning against a bridge or the work floor of an aerial work vehicle. There is a need.
In addition, even if you move to the top of a propped ladder or the work floor of an aerial work vehicle, it is often difficult for the inspection worker to get close enough to the inspection area to reach, so it is difficult to move tubular objects such as pipes. Inspection work is carried out using

Therefore, in conventional inspection methods, including the inspection method using the inspection instrument described in Patent Document 1, for example, when moving from hammering inspection work to marking work, it is necessary to use not only chalk but also a pipe with chalk held at the tip. The chalk holder was also replaced at the same time.

In addition, it is common to carry inspection equipment for marking work, such as a pipe-shaped choke holder with a choke attached to the end, or inspection equipment for imaging work, such as a pipe with a camera attached near the end, to the top of a leaning ladder or the work platform of an aerial work vehicle for replacement.

However, the top of a propped ladder and the work floor of an aerial work vehicle are limited areas, so if a large number of inspection instruments are brought in, they will take up space within the limited area and may interfere with inspection work. There is.
On the other hand, if you do not bring the inspection equipment for replacement to the top of the leaning ladder or the work floor of the aerial work vehicle, each time you try to replace it, An inspection worker must descend to the ground from the floor, or someone on the ground must carry the inspection equipment for replacement to the top of a propped ladder or to the work floor of an aerial work vehicle.

These inspection methods cannot be said to have good workability, and there has been a need for an inspection method that can improve the workability of inspection work.

The present invention was devised in light of the above points, and aims to provide an inspection method that can improve the workability of inspection work.

In order to achieve the above object, the inspection method of the present invention provides an inspection tool that is portable to a person performing inspection work, and that is detachably attached to a tubular body extending in a predetermined direction. One of the inspection instruments is replaced with another inspection instrument having a different function, and the other inspection instrument is removably attached to the same tubular body, or one of the inspection instruments is detachably attached to the tubular body. an inspection instrument attachment step of additionally detachably attaching another inspection instrument having a different function to the tubular body; and an inspection process for inspecting objects.

Here, one of the inspection instruments, which is portable for a person performing inspection work and is removably attached to a tubular body extending in a predetermined direction, is replaced with another inspection instrument having a different function. Either replacing the inspection instrument with another inspection instrument removably attached to the same tubular body, or attaching another inspection instrument with a different function to the tubular body to which one inspection instrument is removably attached. The inspection instrument attachment process, in which additional and removable inspection instruments are attached, allows a variety of inspection operations to be carried out using one tubular body.

Furthermore, the inspection instrument is detachably attached to the tubular body, and is portable to the person performing the inspection work, that is, the inspection worker, so that it can be removed from the tubular body and carried around.

Furthermore, the term "tubular body" as used in the present invention includes not only one with a hollow interior but also one with a solid interior.
In addition, the term "inspection instrument" as used in the present invention includes not only instruments normally used for inspection work, such as a percussion stick, but also any part of the instrument if it is capable of carrying out inspection work.

In addition, in the inspection method of the present invention, one inspection tool is attached to the end of the tubular body, and in the inspection tool attachment process, another inspection tool can be additionally and detachably attached to the main body region, which is the region between both ends of the tubular body, so that the other inspection tool extends approximately perpendicular to the same direction as the extension direction of the tubular body and is located on an imaginary straight line passing through the one inspection tool.

Here, if the tubular body is composed of a plurality of tubular body constituent members that are removably connected to each other, the area between both ends of each tubular body constituent member is the main body area where other inspection instruments are attached. be.

In this case, for example, if one inspection tool is a hammer and the other inspection tool is a receiving net to collect concrete pieces removed by the hammer, the concrete pieces that fall under their own weight can be collected in the receiving net while hitting the inspection point with the hammer.

In addition, in the inspection method of the present invention, the tubular body is configured such that a first tubular body component and a second tubular body component are removably connected to each other, and one inspection instrument is attached to the first tubular body component. It is attached to the end of the tubular body component, and in the inspection instrument installation process, the connection between the first tubular body component and the second tubular body component is released and the first inspection instrument is attached. Another inspection instrument may be removably attached to the end opposite to the end of the first tubular body component or the end of the second tubular body component.

In this case, it is possible to quickly switch between one inspection task and another inspection task having different work content from the first inspection task.
Here, the connection between the first tubular body component and the second tubular body component includes a direct connection and an indirect connection via an instrument.
In addition, the "end of the second tubular body component" includes the end that connects to the first tubular body component and the end opposite to the end that connects to the first tubular body component.

In addition, in the inspection method of the present invention, in the inspection process, an inspection tool attached to the end of a first tubular body component and another inspection tool attached to the end of a second tubular body component can be used together to inspect the inspection object.

In this case, two inspection operations having different work contents can be performed almost simultaneously, and the operation speed can be improved.

In addition, in the inspection method of the present invention, in the inspection tool attachment step, an imaging device capable of capturing images as another inspection tool is detachably attached to the region between both ends of the first tubular body component or the region between both ends of the second tubular body component, and in the inspection step, one inspection tool attached to the end of the first tubular body component and another inspection tool attached to the end of the second tubular body component are arranged side by side, and the imaging device is used to capture images in the direction in which the end of the tubular body to which the one inspection tool is attached is located and in the direction in which the end of the tubular body to which the other inspection tool is attached is located.

In this case, since the imaging device is attached to the tubular body, the inspection worker can stably take images of the two different inspection tasks while holding the two tubular body components side by side with one hand. Speed can be further improved.

In addition, in the inspection method of the present invention, one inspection tool is attached to an end of the tubular body, and another inspection tool is attached to the end opposite to the end of the tubular body to which the first inspection tool is attached, and in the inspection tool attachment step, an imaging device capable of imaging as the other inspection tool is additionally and detachably attached to the area between both ends of the tubular body, and in the inspection step, the imaging device is used to image the direction in which the end of the tubular body to which the first inspection tool is attached is located or the direction in which the end of the tubular body to which the other inspection tool is attached is located.

In this case, since the imaging device is attached to the tubular body, the inspection worker can stably capture images even while holding the tubular body.

The inspection method according to the present invention can improve the workability of inspection work.

FIG. 1 is a schematic diagram showing an example of a state in which a percussion rod is replaced with a choke in an inspection method to which the present invention is applied. Schematic diagram (a) showing an example of a pipe in which a plurality of pipe constituent members are removably connected, used in the inspection method to which the present invention is applied, the pipe constituent members are disconnected from each other, and the choke tool is attached to one side. Schematic diagram (b) showing an example of how it is attached to a component, and schematic diagram (b) showing an example of how a pipe component to which a percussion stick is attached and a pipe component to which a choke tool is attached are used together for inspection. It is figure (c). FIG. 2 is a schematic diagram showing an example of an inspection method using a pipe to which a hammer and a receiving net are removably attached in an inspection method to which the present invention is applied. It is a schematic diagram showing conventional inspection work using an inspection tool.

Embodiments of the present invention will be described below with reference to the drawings to provide an understanding of the present invention.
FIG. 1 is a schematic diagram showing an example of how a percussion stick is replaced with a chalk in an inspection method to which the present invention is applied.

The inspection method of the present invention includes an inspection step.
Here, the inspection step uses an inspection instrument removably attached to the end of the operation pipe 25 extending in a predetermined direction or to the main body area which is the area between both ends of the operation pipe 25. This is the process of inspecting the object to be inspected.

The inspection method of the present invention also includes an inspection tool mounting step.
Here, the inspection tool installation process is a process of either replacing one inspection tool that is removably attached to the operating pipe 25 with another inspection tool having a different function and removably attaching the other inspection tool to the operating pipe 25, or additionally removably attaching another inspection tool having a different function to the operating pipe 25 to which the one inspection tool is attached.

Furthermore, the "inspection tool" used in the inspection method of the present invention is a tool capable of carrying out inspection work.
Specific examples of inspection tools include percussion rods, chalk, sound-collecting microphones, blackboards, hammers, receiving nets, and imaging equipment such as digital cameras. However, if inspection work can be performed with these tools, those parts alone can also be used as "inspection tools."

For example, if it is a percussion rod, only the percussion part can be used as an inspection tool in the inspection method of the present invention, and if it is a choke tool, only the choke body can be used as an inspection tool in the inspection method of the present invention.

When inspecting an object to be inspected, for example, a wall surface of a concrete structure, using the percussion rod 20 detachably attached to the operating pipe 25, the inspection worker holds the operating pipe 25 with his/her hand and presses the rolling element of the rolling section 21. The roller 21B is rotated about the support shaft 21A as the central axis while applying the roller 21B to the wall surface.
Then, it is determined whether or not there is an abnormality based on the sound made when the rolling element 21B hits the wall surface.

If an abnormality is confirmed through such tapping sound inspection work, then the abnormal location on the wall surface is marked using chalk.
At this time, in the inspection instrument attachment step of the inspection method of the present invention, the percussion rod 20 detachably attached to the operation pipe 25 is removed from the operation pipe 25, replaced with the choke body 24, and the choke body 24 is attached to the operation pipe 25. Attaches removably to the
Conversely, it is of course possible to remove the choke body 24 from the operating pipe 25, replace it with the percussion rod 20, and removably attach the percussion rod 20 to the operation pipe 25.

As shown in FIG. 1, for example, the percussion stick 20 and the choke body 24 can be detachably attached to the operation pipe 25 using the holder 10 attached to the tip of the operation pipe 25, or the percussion stick 20 can be replaced with the choke body 24. However, it is of course not necessary to use the holder 10 if the percussion stick 20 and choke body 24 can be detachably attached to the operation pipe 25 or can be replaced with each other. It is.

For example, a joint with a clamping function that is open on both ends, or a cylindrical rubber member that is open on both ends, can be attached to the tip of the operating pipe 25, and the percussion rod 20 and the choke body 24 can be detachably attached to the operating pipe 25 using such a joint or rubber member.

Here, the holder 10 has a main body portion 11 .
Furthermore, the main body 11 extends in a predetermined direction, and a space is formed inside the main body 11 .
The space formed inside main body 11 is a space in which at least a part of a tubular body, such as a pipe, a cylindrical choke body, a cylindrical choke holder portion that holds the choke body, the cylindrical grip portion 23 of percussion rod 20, or the cylindrical grip portion of a hammer can be disposed.
That is, the cross-sectional shape of the main body 11 in a direction substantially perpendicular to the direction in which the main body 11 extends is substantially circular, and the inner surface of the main body 11 is curved.

Furthermore, openings are formed at both ends in the direction in which the main body portion 11 extends.
Furthermore, the openings at both ends communicate the space formed inside the main body 11 with the outside of the main body 11 .

Further, two side openings are formed on the side surface of the main body part 11.
Further, the two side openings are formed in the direction in which the main body portion 11 extends.
Further, the two side openings are open and communicate the space inside the main body 11 with the outside of the main body 11.

The holder 10 also includes a first insertion piece 12 and a second insertion piece 13.
Moreover, the first insertion piece 12 and the second insertion piece 13 each extend in one direction.

Also, the first insert piece 12 and the second insert piece 13 can be inserted into the respective side openings from one end.
Moreover, each of the first insertion piece 12 and the second insertion piece 13 is curved in the same direction as the direction in which they extend.
Moreover, the first insertion piece 12 and the second insertion piece 13 are curved with one surface facing inward.

The first insertion piece 12 also has a first protrusion 12A.
The first protrusion 12A is provided on the other end side of the other surface of the first insertion piece 12 so as to protrude in the opposite direction from the one surface of the first insertion piece 12 .
The second insertion piece 13 also has a second protrusion 13A.
The second protrusion 13A is provided on the other end side of the other surface of the second insertion piece 13 so as to protrude in the opposite direction from the one surface of the second insertion piece 13 .

As shown in FIG. 1 , a part of the operation pipe 25 , that is, the tip portion, is disposed in a space formed inside the main body 11 through an opening at one end of the main body 11 .
With the tip of the operating pipe 25 disposed in the space inside the main body 11, the second insertion piece 13 is inserted into the second side opening.

At this time, the second insertion piece 13 enters the gap formed between the tip of the operating pipe 25 arranged in the internal space of the main body 11 and the inner surface of the main body 11, and the wedge action of the second insertion piece 13 prevents the operating pipe 25 from moving in the same direction as the extension of the main body 11.
That is, the tip of the operating pipe 25 is fixed to the holder 10 .

Further, when replacing the percussion stick 20 with the chalk body 24, a portion of the grip portion 23 of the percussion stick 20, that is, the lower end portion is released from being fixed to the holder 10.
That is, in the gap formed between the lower end of the grip part 23 of the percussion stick 20 disposed in the internal space of the main body 11 through the opening at the other end of the main body 11 and the inner surface of the main body 11. The first insertion piece 12 that has been inserted is pulled out from this gap.

Then, as shown in FIG. 1, the percussion stick 20 is removed from the holder 10, and a part of the choke body 24, that is, the lower end is inserted into the inside of the body part 11 through the opening at the other end of the body part 11. Place it in the space where it is placed.
Then, with the lower end of the choke body 24 disposed in the space inside the body portion 11, the first insertion piece 12 is moved in the insertion direction 14 and inserted into the first side opening.

At this time, the first insertion piece 12 enters the gap formed between the lower end of the choke body 24 arranged in the space inside the main body 11 and the inner surface of the main body 11, and the first insertion piece 12 is inserted until the wedge action of the first insertion piece 12 stops the choke body 24 from moving in the same direction as the extension of the main body 11.

Then, the inspection worker holds the operating pipe 25 in his hand and applies the chalk body 24 to an abnormal location on the wall surface of the concrete structure to mark it.
This marking work is also one of the inspection steps included in the inspection method of the present invention.

FIG. 2(a) is a schematic diagram showing an example of a pipe in which a plurality of pipe components are removably connected, which is used in the inspection method to which the present invention is applied.
Further, FIG. 2(b) is a schematic diagram showing an example of the state when the pipe constituent members are disconnected from each other and the choke tool is attached to one of the constituent members.
Further, FIG. 2(c) is a schematic diagram showing an example of how a pipe component to which a percussion rod is attached and a pipe component to which a choke tool is attached are used together for inspection.

The operating pipe 25 shown in FIG. 2(a) is configured by a first pipe component 25A and a second pipe component 25B removably connected to each other by a second holder 10B.
That is, the proximal end (the end opposite to the tip) of the first pipe component 25A passes through the opening at one end of the second holder 10B to the inside of the main body of the second holder 10B. It is placed in a fixed space.
Further, the tip of the second pipe component 25B is placed and fixed in the space inside the main body of the second holder 10B through the opening at the other end of the second holder 10B.

Further, the tip of the first pipe component 25A is fixed to the first holder 10A.
Here, the structure of the first holder 10A and the structure of the second holder 10B are the same as the structure of the holder 10 shown in FIG.

Further, the lower end of the gripping part 23 of the percussion stick 20 passes through the opening at the other end of the first holder 10A on the opposite side to the one end to which the tip of the first pipe component 25A is fixed. It is arranged and fixed in the space inside the main body of the holder 10A.
That is, the percussion stick 20 is detachably attached to the first pipe component 25A by the first holder 10A.

The inspection method of the present invention, which uses an operating pipe 25 made up of multiple members as shown in Figure 2(a), allows inspection work to be performed using two types of inspection tools together.

That is, as shown in Fig. 2(b), the fixation between the base end of the first pipe component 25A and the second holder 10B is released, and the first pipe component 25A is separated from the second holder 10B. In other words, the connection between the first pipe component 25A and the second pipe component 25B is released.
Then, as shown in FIG. 2(b), the lower end of choke holder portion 26A of choke device 26 is placed and fixed in the space inside the main body of second holder 10B through an opening at one end of second holder 10B.
That is, the choke device 26 is detachably attached to the second pipe component 25B by the second holder 10B.

Next, the inspection worker inspects the first pipe component 25A to which the percussion rod 20 is attached by the first holder 10A, and the second pipe component to which the choke tool 26 is attached by the second holder 10B. While holding the member 25B by hand, as shown in FIG. 2C, using the percussion stick 20 and chalk tool 26 together, inspect a main girder 40 of a concrete structure, such as a bridge.

That is, the inspection worker holds the first pipe component 25A in one hand and rotates the rolling striker 21B of the rolling section 21 around the support shaft section 21A as the central axis while pressing the rolling striker 21B against the main girder 40.
At that time, the inspector holds the second pipe component 25B with the other hand and brings the choke body 26B of the choke device 26 close to the rolling striker 21B.
Then, the sound made when the rolling striker 21B strikes the main girder 40 can be confirmed, and it becomes easier to quickly mark the abnormal portion with the choke body 26B.

Further, in the examples shown in FIGS. 2(a) to 2(c), the number of members constituting the operation pipe 25 is two, but the number of members may be three or more. Of course.

In addition, in the inspection tool attachment step of the inspection method of the present invention, as shown in FIG. 2(b), an imaging device capable of capturing images, such as a digital camera, can be detachably attached to the area between both ends of the first pipe component 25A or the area between both ends of the second pipe component 25B, which are no longer connected to each other.

In this case, for example, like holder 10, a side opening is formed in the main body, and a digital camera can be attached to first pipe component 25A or second pipe component 25B by a holder into which an insert piece is inserted, but a holder whose main body is made up of two main body components that can be joined or separated from each other can also be used.

Furthermore, the first holder 10A allows a chalk tool 26 to be removably attached to the first pipe component 25A, and the second holder 10B allows a blackboard, for example, to be removably attached to the second pipe component 25B. Install it.

In the inspection process of the inspection method of the present invention, the first pipe component 25A to which the chalk tool 26 is attached and the second pipe component 25B to which the blackboard is attached are arranged side by side, and a digital camera is used to capture images of the direction in which the end of the first pipe component 25A to which the chalk tool 26 is attached is located and the direction in which the end of the second pipe component 25B to which the blackboard is attached is located.

On the other hand, even when the operation pipe 25 is not composed of a plurality of members, for example, a choke tool 26 is removably attached to one end of the operation pipe 25 by the first holder 10A, and the second holder 10B is used to operate the operation pipe 25. For example, a blackboard is removably attached to the other end of the pipe 25.

In addition, during the inspection tool installation process, a digital camera, which is an imaging device, can be detachably installed in the area between both ends of the operating pipe 25.

In the inspection step of the inspection method of the present invention, a digital camera is used to determine the direction in which one end of the operating pipe 25 to which the chalk tool 26 is attached is positioned, or the other end of the operating pipe 25 to which the blackboard is attached is positioned. It is possible to image the direction.
At this time, both one end of the operating pipe 25 and the other end of the operating pipe 25 are directed toward the main girder 40, which is the inspection location.

In addition, since the digital camera and blackboard do not have cylindrical parts like the percussion rod 20 and the chalk tool 26, the digital camera and blackboard can be fixed to the holder using an auxiliary member having, for example, a cylindrical protrusion for fixing them to the holder.

In addition, if it is found as a result of inspection using the percussion rod 20 that there is an abnormality such as floating concrete in the main girder 40 of the bridge, measures should be taken to prevent concrete pieces from falling from the main girder 40 as soon as the abnormality is discovered. Then, it is necessary to knock off the concrete pieces using a hammer or the like.

FIG. 3 is a schematic diagram showing an example of an inspection method using a pipe to which a hammer and a receiving net are removably attached in an inspection method to which the present invention is applied.

In the operation pipe 30 shown in FIG. 3, like the operation pipe 25 shown in FIG. It is possible to connect and configure.

Unlike the inspection method shown in FIG. 2(c), the inspection method shown in FIG. 3 does not release the fixation between the base end of the first pipe component 30A and the second holder 10B.
2(c), in the inspection method shown in Fig. 3, a hammer 27, not a sounding rod 20, is detachably attached to the tip of the first pipe component 30A by the first holder 10A. That is, the lower end of the gripping portion 27A of the hammer 27 is disposed and fixed in the space inside the first holder 10A.

Moreover, unlike the inspection method shown in FIG. 2(c), in the inspection method shown in FIG. additionally removably installed.
At this time, the receiving net 29 is positioned on an imaginary straight line 31 that extends substantially perpendicularly to the same direction in which the first pipe component 30A and the second pipe component 30B extend and also passes through the hammer 27. Then, the receiving net 29 is attached to the main body region of the first pipe component 30A.

The receiving net 29 has a handle portion 29A that extends linearly and a net portion 29B attached to one end of the handle portion 29A, and the receiving net 29 is attached to the main body region of the first pipe component 30A so that the net portion 29B of the receiving net 29 is positioned on the imaginary straight line 31.

Further, the support 28 includes a third holder 10C and a fourth holder 10D.
Further, the third holder 10C and the fourth holder 10D each have one side opening, one insertion piece, and two main body configurations that can be combined with or separated from each other. This holder is different from the first holder 10A and the second holder 10B in that the main body is made up of two parts, but is the same in other respects.

Further, the support 28 has a first handle support part 28A and a second handle support part 28B.
Here, the first handle support part 28A is formed with a hole through which the handle part 29A of the receiving net 29 can be inserted.
Further, the structure of the first handle support portion 28A may be the same as that of the third holder 10C.

The first handle support portion 28A is connected to the third holder 10C by a connecting portion 28C.

Further, the second handle support portion 28B is provided with a recessed portion so as to be able to support the end portion of the handle portion 29A of the receiving net 29.
Further, the second handle support portion 28B is directly attached to the fourth holder 10D.

Further, the through hole of the first handle support part 28A and the recessed part of the second handle support part 28B face each other and are located on substantially the same straight line with each other.
As a result, the linearly extending handle portion 29A of the receiving net 29 can be supported by the first handle support portion 28A and the second handle support portion 28B.

In the inspection process of the inspection method of the present invention, the inspection worker moves the first pipe component 30A, to which the hammer 27 and receiving net 29 are attached, together with the second pipe component 30B, and knocks down the concrete pieces from the main girder 40 with the head 27B of the hammer 27, and collects the fallen concrete pieces with the net portion 29B of the receiving net 29.

After the concrete pieces have been collected, the fixation between the base end of the first pipe member 30A and the second retainer 10B is released, and the first pipe member 30A is pulled away from the second retainer 10B.
Then, for example, a spray can having an auxiliary member having, for example, a cylindrical protrusion for fixing to the second holder 10B attached thereto is fixed to the second holder 10B.

Furthermore, the base end of the second pipe component 30B is fixed to yet another holder, and a jig for manually manipulating the spray can is fixed to this other holder.
At this time, an auxiliary member having, for example, a cylindrical protrusion is also attached to the jig.

Here, the spray can is for applying a compound that can provide anti-rust treatment or simple anti-peeling treatment.
In this way, the spray can fixed to the second holder 10B located at the tip of the second pipe component 30B can be handled by hand to carry out anti-rust treatment and simple anti-peeling treatment.

Furthermore, when carrying out the inspection method of the present invention, it is of course not necessary for the inspection worker to move to the top of the leaning ladder or to the work platform of the aerial work vehicle.
When an inspection worker performs the inspection method of the present invention without moving to the top of a leaning ladder or the work platform of a high-altitude work vehicle, the inspection work can be performed from the ground by, for example, using an extendable tubular body, increasing the number of tubular body components that are detachably connected to each other, or using a single tubular body that does not extend or contract but can reach high places, thereby improving the efficiency of the inspection work.

As described above, the inspection method of the present invention includes the step of attaching the inspection tool to replace the percussion rod 20, which is detachably attached to the tip of the operation pipe 25, to the choke body 24. 25 can be used to perform various inspection tasks.

Therefore, in the inspection method of the present invention, since the inspection worker can carry the inspection equipment for replacement, there is no need for the inspection worker to go down to the ground when replacing the equipment, or a person on the ground can There is no need to carry inspection equipment for replacement to the top of a leaning ladder or to the work floor of an aerial work vehicle, and one inspection worker can perform inspection work independently, improving work efficiency of inspection work. can be improved.

LIST OF SYMBOLS 10 Holder 10A First holder 10B Second holder 10C Third holder 10D Fourth holder 11 Main body 12 First insertion piece 12A First protrusion 13 Second insertion piece 13A Second protrusion 14 Insertion direction 20 Percussion rod 21 Rolling striking part 21A Support shaft 21B Rolling striker 22 Support rod 23 Grip 24 Choke body 25 Operation pipe 25A First pipe component 25B Second pipe component 26 Choke tool 26A Choke holder part 26B Choke body 27 Hammer 27A Grip 27B Head 28 Support 28A First handle support part 28B Second handle support part 28C Connection part 29 Receiving net 29A Handle portion 29B Net portion 30 Operation pipe 30A First pipe component 30B Second pipe component 31 Virtual straight line 40 Main girder

Claims (4)

an inspection instrument attachment step of removably attaching an inspection instrument that is portable to a person carrying out inspection work to a tubular body extending in a predetermined direction;
an inspection step of inspecting an object to be inspected using the inspection instrument,
The tubular body is configured by a first tubular body constituent member and a second tubular body constituent member being removably connected to each other,
one of the inspection instruments is attached to an end of the first tubular body component,
In order to be able to switch between one inspection work and another inspection work whose work content is different from the first inspection work, the first tubular body constituent member and the first The connection of the second tubular body component is released, and the end of the first tubular body component opposite to the end to which the inspection instrument is attached, or the second tubular body An inspection method in which another inspection instrument having a different function is detachably attached to the end of a component. an inspection tool attachment process for detachably attaching an inspection tool that is portable by a person who performs the inspection work to the tubular body extending in a predetermined direction;
and an inspection step of inspecting an object to be inspected using the inspection tool detachably attached to the tubular body,
The tubular body is configured by a first tubular body component and a second tubular body component that are detachably connected to each other,
one said inspection tool is attached to an end of said first tubular body component,
In the inspection tool mounting step, the first tubular body component and the second tubular body component are released from the connection, and another inspection tool having a different function is detachably mounted to the end of the first tubular body component opposite to the end of the first tubular body component to which the inspection tool is mounted, or to the end of the second tubular body component;
An inspection method in which, in the inspection process, an inspection object is inspected by using one inspection tool attached to the end of the first tubular body component and another inspection tool attached to the end of the second tubular body component together. In the inspection tool mounting step, an imaging device capable of imaging as another inspection tool is detachably mounted in the region between both ends of the first tubular body component or the region between both ends of the second tubular body component,
The inspection method described in claim 2, wherein, in the inspection process, one inspection tool attached to the end of the first tubular body component and another inspection tool attached to the end of the second tubular body component are arranged side by side, and the imaging equipment is used to capture images in the direction in which the end of the tubular body to which the one inspection tool is attached is located and in the direction in which the end of the tubular body to which the other inspection tool is attached is located. an inspection instrument attachment step of removably attaching an inspection instrument that is portable to a person carrying out inspection work to a tubular body extending in a predetermined direction;
an inspection step of inspecting an object to be inspected using the inspection instrument detachably attached to the tubular body,
one of the inspection instruments is attached to an end of the tubular body;
The other inspection instrument is attached to an end of the tubular body opposite to the end to which the one inspection instrument is attached,
In the inspection instrument attachment step, an imaging device capable of taking images as another inspection instrument is additionally removably attached to a region between both ends of the tubular body,
In the inspection step, the imaging device is used to determine the direction in which the end of the tubular body to which one of the inspection instruments is attached or the end of the tubular body to which the other inspection instrument is attached is located. An inspection method that captures an image of the direction in which it is located .

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