JP3235965U - Coating film base suction device and coating film base suction system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a coating film base suction device and a paint film base suction system capable of effectively suppressing leakage of dust, waste liquid and the like in a work of removing a coating film or the like on a wall surface or the like.
SOLUTION: One aspect of the present invention is a peeling portion for peeling a coating film and a coating film base on a peeled surface, a first cover body arranged so as to cover the peeled portion, and the first cover body. The coating film base suction device 200 includes a double cover with a second cover body arranged so as to further cover the cover body. In another aspect of the present invention, the coating film base suction device, the fluid supply device 300 for supplying the fluid to the coating film base suction device, and the dust and the dust discharged from the coating film base suction device are collected. It is a coating film base suction system 100 including a dust suction device 400 for sucking the contained fluid.
[Selection diagram] Fig. 1

Description

The present invention relates to a coating film base suction device and a paint film base suction system.

When repairing or demolishing a building, the paint on the walls of the building may be removed. Since this coating may contain substances harmful to the human body such as asbestos, the operator sucks in the dust generated by removing the coating to suppress health damage, and the dust is scattered. It is required to control the pollution of the surrounding environment by doing so.

A nozzle (peeling portion) that injects high-pressure water onto the target surface for chipping, a casing (cover body) that has an opening for the surface to be chipped and the nozzle is arranged inside, and one of the openings. A high-pressure water injection device including a protruding corner unit having a covering portion that shields the portion is known (Japanese Patent Laid-Open No. 2020-63587). By providing the above-mentioned protruding corner unit, this high-pressure water injection device can inject high-pressure water to the edges of the corners of the wall surface and floor surface for cleaning and removal of unnecessary substances, and further, waste liquid and the like leak to the outside. It is said that it can be surely prevented from being released.

Japanese Unexamined Patent Publication No. 2020-63587

The high-pressure water injection device described in the above publication has one cover body. When the wall surface is cleaned or unnecessary substances are removed by the high-pressure water injection device, waste liquid may leak from below the cover body. If waste liquid containing harmful substances leaks from the high-pressure water injection device, the health of workers and the surrounding environment may be harmed. Therefore, a device capable of further suppressing leakage such as waste liquid is desired.

In view of the above circumstances, the present invention has a coating film base suction device capable of effectively suppressing leakage of dust, a fluid containing the dust, etc. in the work of removing the coating film or the like on a wall surface or the like, and a coating film base. The subject is to provide a suction system.

One aspect of the present invention made to solve the above problems is a peeling portion for peeling the coating film and the coating film base on the surface to be peeled off, and a first cover body arranged so as to cover the peeling portion. It is a coating film base suction device including a double cover with a second cover body arranged so as to further cover the first cover body.

Another aspect of the present invention made to solve the above problems is from the coating film base suction device, the fluid supply device for supplying the fluid to the coating film base suction device, and the coating film base suction device. It is a coating film base suction system including the dust sucking device for sucking the discharged dust and the fluid containing the dust.

The coating film base suction device and the coating film base suction system of the present invention can effectively suppress the leakage of dust and the fluid containing the dust.

FIG. 1 is a conceptual diagram showing a coating film base suction system according to an embodiment of the present invention. FIG. 2 is a schematic plan view of a coating film base suction device used in the paint film base suction system of FIG. FIG. 3 is a schematic right side view of the coating film base suction device of FIG. FIG. 4 is a schematic bottom view of the coating film base suction device of FIG. FIG. 5 is an enlarged view of a main part of the cross section taken along the line AA of FIG. FIG. 6 is a schematic plan view of a coating film base suction device different from that of FIG. FIG. 7 is a schematic right side view of the coating film base suction device of FIG. FIG. 8 is a schematic bottom view of the coating film base suction device of FIG. FIG. 9 is an enlarged view of a main part of the BB cross section of FIG. FIG. 10 is a schematic plan view of a coating film base suction device different from FIGS. 2 and 6. FIG. 11 is a schematic right side view of the coating film base suction device of FIG.

The coating film base suction device according to one aspect of the present invention includes a peeling portion that peels off the coating film and the coating film base on the surface to be peeled off, and a first cover body arranged so as to cover the peeled portion. It is provided with a double cover with a second cover body arranged so as to further cover the first cover body.

The coating film base suction device peels off the coating film on the surface to be peeled off and the base thereof (hereinafter, also referred to as “coating film or the like”) at the peeling portion. The first cover body having the peeled portion suppresses the scattering of the dust generated by this peeling and the fluid containing the dust (hereinafter, also referred to as “dust or the like”). The second cover body suppresses the dust and the like leaking from the first cover body from further leaking to the outside. That is, since the coating film base suction device includes a double cover, the above-mentioned dust and the like can effectively suppress leakage.

The peeling portion may include a rotating body that peels off the coating film and the coating film base by injecting a fluid. By injecting the fluid while rotating, the coating film and the like can be easily peeled off, and the fluid can suppress the scattering of the dust.

The peeled portion may include a grinder. By doing so, the configuration of the coating film base suction device can be simplified.

Each of the first cover body and the second cover body has a discharge port for discharging dust generated by peeling the coating film and the coating film substrate and at least one of the fluids containing the dust to the outside. The first discharge port formed in the first cover body includes the first tubular portion formed in a tubular shape so as to communicate the inside and the outside of the first cover body, and the second cover body. The second discharge port formed on the body may include a second tubular portion formed in a tubular shape so as to communicate the inside and the outside of the second cover body. That is, a first discharge port for discharging the dust or the like in the first cover body and a second discharge port for discharging the dust or the like in the second cover body are provided. For example, if the dust or the like in the first cover body is discharged to the second cover body and all the dust or the like is discharged from the second discharge port of the second cover body, the leakage of the dust or the like may not be effectively suppressed. There is. Since each of the first cover body and the second cover body has a discharge port, it is possible to effectively suppress the leakage of the dust and the like.

It is preferable that the tip of the first tubular portion protrudes into the second tubular portion. By doing so, it is possible to unify the pipes such as the hose for discharging the dust and the like, and it is possible to improve the operability of the coating film base suction device.

The second cover body may have an upper portion and a lower portion attached to the upper portion. By doing so, the total height of the second cover body can be changed.

Another aspect of the present invention includes the coating film base suction device, the fluid supply device for supplying the fluid to the coating film base suction device, and the dust and the dust discharged from the coating film base suction device. It is a coating film base suction system equipped with a dust suction device for sucking a fluid.

Since the coating film base suction system includes the coating film base suction device, it is possible to effectively suppress the leakage of dust and the like and efficiently peel off the coating film and the like.

[Details of the form for carrying out the present invention]
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings as appropriate. It should be noted that each figure is a reference figure, and the shape, scale, etc. of each configuration (each member) may differ from the actual ones.

[First Embodiment]
<Coating film base suction system>
As shown in FIG. 1, the coating film base suction system 100 according to the present invention includes a coating film base suction device 200 for peeling a coating film or the like on a surface to be peeled (not shown) and the coating film base suction device. A fluid supply device 300 for supplying a fluid to the 200 and a dust suction device 400 for sucking dust and the like discharged from the coating film base suction device 200 are provided. The peeled surface is, for example, an indoor wall surface, a floor surface, a ceiling surface, an outer wall surface of a building, or the like (hereinafter, also referred to as “wall surface or the like”). The fluid is, for example, water, a solvent for peeling off a coating film, or the like. As will be described later, the coating film base suction system 100 includes an air supply device 500 that supplies air for rotating the rotating body of the coating film base suction device 200.

The coating film base suction device 200 and the fluid supply device 300 are connected by a fluid supply pipe 301. The coating film base suction device 200 and the dust suction device 400 are connected by a dust suction pipe 401. The coating film base suction device 200 and the air supply device 500 are connected by an air supply pipe 501. Each pipe may include, for example, a hose having flexibility and elasticity.

[Coating film base suction device]
The coating film base suction device 200 is a device for peeling off the coating film or the like on a wall surface or the like. As shown in FIGS. 2, 3, 4, and 5, the coating film base suction device 200 is arranged so as to cover the peeling portion 210 including the rotating body 211 that injects the fluid and the peeling portion 210. It is provided with a double cover of the first cover body 220 and the second cover body 230 arranged so as to further cover the first cover body 220.

The first cover body 220 and the second cover body 230 suppress the scattering of the dust and the like. Each of the first cover body 220 and the second cover body 230 is a ceiling cylinder-shaped member, and has a top plate 221,231 and a side plate 222,232, one of which is open. The coating film base suction device 200 is used so that the openings of the first cover body 220 and the second cover body 230 each face the wall surface or the like. The material of the first cover body 220 and the second cover body 230 is not particularly limited, and known materials such as resin, aluminum, stainless steel, and iron are used. In the following description, "lower" means the direction from the top plates 221,231 of the coating film base suction device 200 toward the opening, and "upper" means the opposite direction.

The distance from the outer surface (surface) of the top plate 231 of the second cover body 230 to the opening of the first cover body 220 and the distance from the surface of the top plate 231 of the second cover body 230 to the opening of the second cover body 230 are It is almost the same. That is, the opening of the first cover body 220 and the opening of the second cover body 230 are formed so as to be flush with each other.

The first cover body 220 and the second cover body 230 include an elastic member 240 that abuts on the surface to be peeled off. The elastic member 240 prevents the first cover body 220 and the second cover body 230 from peeling off the coating film or the like by directly contacting the surface to be peeled off. The elastic member 240 is configured by erection of a plurality of resin-made linear members at the opening end of the first cover body 220 and the opening end of the second cover body 230. In other words, the elastic member 240 is a brush-like member. The lengths of the elastic members 240 of the first cover body 220 and the second cover body 230 are substantially the same. That is, the tips of the elastic members 240 of the first cover body 220 and the second cover body 230 are formed so as to be flush with each other. In addition, although it is shown in the figure that the linear member is arranged with a gap, the linear member does not form a gap in order to effectively suppress the leakage of dust and the like. Is densely placed in.

The rotating body 211 is formed with an injection hole (nozzle) 212 for injecting a fluid. The rotating body 211 of the present embodiment has six injection holes 212 formed therein. The rotating body 211 is configured to rotate in a plane parallel to the opening around the rotation shaft 213 in the first cover body 220 by the air supplied from the air supply device 500 described later. The rotating body 211 is configured to inject the fluid supplied from the fluid supply device 300, which will be described later, from the injection hole 212. The air and the fluid are configured to be supplied to the rotating body 211 from the air supply port 233 provided on the top plate 231 of the second cover body 230 and the fluid supply port 234. By injecting the fluid at high pressure while the rotating body 211 rotates, the coating film or the like on the wall surface or the like is peeled off. In addition, the fluid suppresses the scattering of dust and the like.

The air supply port 233 and the fluid supply port 234 are provided on the erection body 235 standing on the top plate 231 of the second cover body 230. In the erection body 235, an air flow path (not shown) that communicates the air supply port 233 and the inside of the rotating body 211, and a fluid flow path that communicates the fluid supply port 234 and the inside of the rotating body 211. (Not shown) is formed. An air supply pipe 501 is connected to the air supply port 233. A fluid supply pipe 301 is connected to the fluid supply port 234.

The top plate 231 of the second cover body 230 is provided with a handle 236 for the operator to grip. The handle 236 is fixed so as to be separated from the surface of the top plate 231 of the second cover body 230 via the leg portion 236a. The handle 236 is provided with a lever 237. When the operator grips the handle 236 and the lever 237, the rotating body 211 is rotated and the fluid is injected. That is, the lever 237 is a switch for starting and stopping the operation of the rotating body 211.

The first tubular portion 238a of the first discharge port 238 is arranged on the top plate 231 of the second cover body 230. The first discharge port 238 includes the first tubular portion 238a and the first discharge opening 238b formed in the top plate 221 of the first cover body 220. The top plate 231 of the second cover body 230 is formed with an upper discharge opening 231a that communicates the first tubular portion 238a and the first discharge opening 238b. A dust suction pipe 401 is connected to the first tubular portion 238a. The dust or the like such as the coating film peeled off by the fluid ejected by the rotating body 211 is discharged from the inside of the first cover body 220 by the dust suction device 400 via the dust suction pipe 401.

A second tubular portion 239a of the second discharge port 239 is arranged on the side plate 232 of the second cover body 230. The second discharge port 239 includes the second tubular portion 239a and the second discharge opening 239b formed in the side plate 232 of the second cover body 230. A dust suction pipe 401 is connected to the second tubular portion 239a. That is, the dust suction pipe 401 has a portion in which one pipe is branched into two. One of the two branched portions is connected to the first tubular portion 238a, and the other is connected to the second tubular portion 239a. The dust or the like in the second cover body 230 is discharged by the dust suction device 400 via the dust suction pipe 401.

The second cover body 230 suppresses the dust and the like leaking from the first cover body 220 from further leaking to the outside. Specifically, when the coating film or the like is peeled off from a vertical surface such as a wall, the rotating body 211 rotates at a high speed and injects the fluid at a high pressure, so that the dust is dusted from below the first cover body 220. Etc. may leak. The coating film base suction device 200 has a second cover body 230 on the outside of the first cover body 220, and can keep the dust and the like leaked from the first cover body 220 inside the second cover body 230. Therefore, the coating film base suction device 200 can effectively suppress the leakage of the dust and the like to the outside. Further, since the dust and the like in the second cover body 230 are sucked into the dust suction device 400 together with the dust and the like in the first cover body 220, the dust and the like are more effectively suppressed from leaking to the outside. can.

A roller guide 250 is arranged on the side plate 232 of the second cover body 230. In the present embodiment, the four roller guides 250 are arranged on the side plates 232 of the second cover body 230 at equal angular intervals. The roller guide 250 is a member for facilitating the movement of the coating film base suction device 200 on the surface to be peeled off. The number of roller guides 250 may be three or five or more.

The roller guide 250 includes a roller 251 that abuts on the surface to be peeled off, a roller holding portion 252 that rotatably holds the roller 251 and a support portion 253 that supports the roller holding portion 252. The support portion 253 is fixed to the outer surface of the side plate 232 of the second cover body 230.

The roller holding portion 252 has a holding portion 252a that holds a part of the roller 251 so as to be exposed, and a leg portion 252b that is arranged from the holding portion 252a on the side opposite to the side on which the roller 251 is arranged. The leg portion 252b is formed in a substantially columnar shape, and one end thereof is joined to the holding portion 252a. A male screw is formed on the outer peripheral surface of the leg portion 252b. The other end of the leg portion 252b is inserted into a hole (not shown) formed in the support portion 253, and the nut 254 is screwed so that the roller holding portion 252 engages with the support portion 253.

By changing the amount of protrusion of the leg portion 252b from the nut 254 at the other end, the height (position) of the roller guide 250 in the vertical direction can be changed. The height of the roller guide 250 in the vertical direction is set so that the tip of the roller 251 is at the same position as the tip of the elastic member 240 or slightly lower than the tip of the elastic member 240 (second cover body 230). It is preferable to adjust (so that it is located on the top plate 231 side of the).

[Fluid supply device]
The fluid supply device 300 supplies the above fluid to the coating film base suction device 200. Specifically, the fluid supply device 300 supplies the fluid to the coating film base suction device 200 via the fluid supply pipe 301 connected to the fluid supply port 234 provided in the coating film base suction device 200. do. The fluid is sprayed onto the wall surface or the like from the injection hole 212 of the rotating body 211 built in the first cover body 220 of the coating film base suction device 200. The fluid supply device 300 is not particularly limited, and examples thereof include a pump capable of moving a fluid by applying pressure.

[Dust suction device]
The dust suction device 400 sucks dust or the like of the coating film or the like from the coating film base suction device 200. Specifically, the dust in the first cover body 220 is passed through the dust suction pipe 401 connected to the first tubular portion 238a and the second tubular portion 239a arranged in the coating film base suction device 200. Etc. and dust and the like in the second cover body 230 are sucked. The dust suction device 400 is not particularly limited, and examples thereof include a negative pressure pump capable of moving the dust or the like by generating a negative pressure. The dust suction device 400 may be configured to store the dust or the like, or may be provided with a separate container or the like for storing the dust or the like.

[Air supply device]
The air supply device 500 supplies air to the coating film base suction device 200. Specifically, the air supply device 500 supplies air to the coating film base suction device 200 via the air supply pipe 501 connected to the air supply port 233 provided in the coating film base suction device 200. .. The air causes the rotating body 211 built in the first cover body 220 of the coating film base suction device 200 to rotate. The air supply device 500 is not particularly limited, and examples thereof include a compressor.

〔advantage〕
Since the coating film base suction device 200 includes a double cover of the first cover body 220 and the second cover body 230 that covers the first cover body 220, it is generated by peeling off the coating film or the like. It is possible to effectively prevent the dust and the like from leaking from the coating film base suction device 200.

[Second Embodiment]
Hereinafter, the coating film base suction system 600, which is another embodiment of the present invention, will be described. In the following description, the same configurations as the coating film base suction system 100 and the coating film base suction device 200 described above will be omitted by using the same reference numerals.

As shown in FIG. 1, the coating film base suction system 600 supplies a fluid to the coating film base suction device 700 for peeling the coating film or the like on the surface to be peeled (not shown) and the coating film base suction device 700. A fluid supply device 300 and a dust suction device 400 for sucking dust and a fluid containing dust of the coating film or the coating film discharged from the coating film base suction device 700 are provided.

As shown in FIGS. 6, 7, 8 and 9, the coating film base suction device 700 is arranged so as to cover a peeling portion (not shown) including a rotating body for injecting a fluid and the peeling portion. It is provided with a double cover of the first cover body 720 which is formed and a second cover body 730 which is arranged so as to further cover the first cover body 720.

Each of the first cover body 720 and the second cover body 730 is a ceiling cylinder-shaped member, and has a top plate 721, 731 and a side plate 722, 732, one of which is open. The first cover body 720 and the second cover body 730 include an elastic member 240 that abuts on the surface to be peeled off.

The top plate 731 of the second cover body 730 is provided with a standing body 235 and a handle 236. A roller guide 250 is arranged on the outer surface of the side plate 732 of the second cover body 730. A second tubular portion 739a of the second discharge port 739 is arranged on the side plate 732 of the second cover body 730. The second discharge port 739 includes the second tubular portion 739a and the second discharge opening 739b formed in the side plate 732 of the second cover body 730. A dust suction pipe 401 is connected to the second tubular portion 739a.

A first tubular portion 728a of the first discharge port 728 is arranged on the side plate 722 of the first cover body 720. The first discharge port 728 includes the first tubular portion 728a and the first discharge opening 728b formed in the side plate 722 of the first cover body 720.

The first tubular portion 728a and the second tubular portion 739a are arranged so that their central axes coincide with each other. That is, the center of the first tubular portion 728a and the center of the second tubular portion 739a are arranged so as to overlap each other. In the present embodiment, the tip of the first tubular portion 728a protrudes into the second tubular portion 739a. That is, a part (tip side portion) of the first tubular portion 728a is located in the second tubular portion 739a. The tip of the first tubular portion 728a may protrude beyond the tip of the second tubular portion 739a. That is, the tip of the first tubular portion 728a may be located outside the tip of the second tubular portion 739a.

The first tubular portion 728a is arranged so that its outer peripheral surface does not abut on the inner peripheral surface of the second tubular portion 739a. In other words, the outer diameter of the first tubular portion 728a is smaller than the inner diameter of the second tubular portion 739a. That is, there is a gap between the outer peripheral surface of the first tubular portion 728a and the inner peripheral surface of the second tubular portion 739a.

When the dust suction pipe 401 is connected to the second tubular portion 739a, it is formed between the outer peripheral surface of the first tubular portion 728a and the inner peripheral surface of the second tubular portion 739a by the dust suction device 400. Dust and the like in the second cover body 730 are sucked from the gap. The dust or the like in the first cover body 720 is sucked into the dust suction pipe 401 connected to the second tubular portion 739a via the first tubular portion 728a. That is, the coating film base suction device 700 can have one connected dust suction pipe 401.

〔advantage〕
Since the coating film base suction device 700 has one connected dust suction pipe 401, operability (maneuverability) can be improved.

[Third Embodiment]
Hereinafter, the coating film base suction system 800, which is still another embodiment of the present invention, will be described. In the following description, the same configurations as the above-mentioned coating film base suction system 100, 600 and the coating film base suction device 200, 700 will be omitted by using the same reference numerals.

As shown in FIG. 1, the coating film base suction system 800 supplies a fluid to the coating film base suction device 900 for peeling the coating film or the like on the surface to be peeled (not shown) and the coating film base suction device 900. A fluid supply device 300 and a dust suction device 400 for sucking dust and a fluid containing dust of the coating film or the coating film discharged from the coating film base suction device 900 are provided.

As shown in FIGS. 10 and 11, the coating film base suction device 900 includes a peeling portion (not shown) including a rotating body that injects a fluid, and a first cover arranged so as to cover the peeling portion. It comprises a double cover of a body (not shown) and a second cover body 930 disposed to further cover the first cover body.

The second cover body 930 has an upper portion 931 and a lower portion 932. The upper portion 931 is a ceiling-shaped member, has a top plate 931a and a side plate 931b, and one of them is open. Further, the side plate 931b is provided with a second discharge port 939 and a roller guide 250. The lower portion 932 is a substantially cylindrical member, and is composed of a side plate 932b. An elastic member 240 that abuts on the surface to be peeled is disposed at one end (lower end) of the side plate 932b.

The lower portion 932 is configured to be removable with respect to the upper portion 931. Specifically, the outer diameter of the side plate 931b of the upper portion 931 and the inner diameter of the side plate 932b of the lower portion 932 are substantially the same, and the lower portion from the other end (upper end portion) of the lower portion 932. The inner peripheral surface of 932 is fitted to the outer peripheral surface of the upper portion 931.

The upper portion 931 has a fixing portion 910 for restricting the movement of the lower portion 932. In the present embodiment, the fixing portions 910 are arranged at three positions at equiangular intervals. The number of the fixed portions 910 is not particularly limited, and may be one, two, or four or more. The fixing portion 910 has a pedestal portion 911 fixed to the outer peripheral surface of the side plate 931b of the upper portion 931 and a fixing tool screwed into a female screw hole (not shown) formed in the pedestal portion 911. In this embodiment, the bolt 912 is used as the fixing tool. The pedestal portion 911 is formed in a substantially L shape in a side view, and has an abutting portion 911a that abuts on the side plate 931b at the upper side and a separating portion 911b that is separated from the side plate 931b at the lower side. The pedestal portion 911 is fixed to the side plate 931b by the contact portion 911a. This fixing method is not particularly limited, and known methods such as bolt fastening and welding can be adopted. The female screw hole is formed in the separating portion 911b. The lower portion 932 is inserted into the gap between the side plate 931b and the separation portion 911b, and is held by the upper portion 931 by tightening the bolt 912.

〔advantage〕
The lower portion 932 can be moved (sliding) in the vertical direction with respect to the upper portion 931 by loosening the bolt 912. When the coating film base suction device 900 is used, the elastic member arranged on the first cover body and the elastic member 240 arranged on the second cover body 930 may be worn. When one elastic member is brought into contact with the surface to be peeled due to this wear, the other elastic member is separated from the surface to be peeled to form a gap, and the dust or the like may leak from the gap. Since the coating film base suction device 900 can move the lower portion 932 of the second cover body 930, the second cover body 930 is set to the height of the elastic member arranged on the first cover body. The heights of the elastic members 240 can be matched. Therefore, leakage from the gap can be effectively suppressed.

[Other embodiments]
The embodiments do not limit the configuration of the present invention. Accordingly, the embodiments may be omitted, replaced or added to components of each of the embodiments based on the description of the present specification and common general knowledge, all of which are construed as belonging to the scope of the present invention. Should be.

The peeling portion of the coating film peeling suction device may include a grinder instead of the above-mentioned rotating body. That is, the first cover body may incorporate the above-mentioned tool of the grinder provided with a tool for peeling off the coating film or the like by rotating, and the second cover body may incorporate the first cover body. The peeling unit may include a fluid supply unit that supplies a fluid for preventing dust and the like from the coating film and the like peeled off by the grinding machine together with the grinding machine.

The first cover body does not have to have a top surface. That is, the first cover body may be composed of only the side plate, and this side plate may be joined to the top plate of the second cover body.

It is not necessary to suck dust and the like in the second cover. That is, it may be configured so that dust or the like is stored in the second cover.

In the above-described embodiment, the first cover body and the second cover body have been described as having a cylindrical shape, but the shape of the cover body is not particularly limited and may be a square cylinder shape, an elliptical cylinder shape, or the like. ..

The elastic member may be a plurality of flexible plate-shaped rubber pieces or the like instead of the linear member.

The coating film base suction system and the paint film base suction device of the present invention can effectively suppress the scattering of dust and the like generated by peeling off the paint film and the paint film on the wall surface of the building, and thus repair the building. , Especially preferably used in dismantling and the like.

100,600,800 Coating film base suction system 200,700,900 Coating film base suction device 210 Peeling part 211 Rotating body 212 Injection hole (nozzle)
213 Rotating shaft 220,720 First cover body 221,721 Top plate 222,722 Side plate 230,730,930 Second cover body 231,731,931a Top plate 231a Upper discharge opening 232,732,931b, 932b Side plate 233 Air supply Port 234 Fluid supply port 235 Standing body 236 Handle 236a Leg 237 Lever 238, 728 First discharge port 238a, 728a First tubular part 238b First discharge opening 239, 739, 939 Second discharge port 239a, 739a Second Cylindrical part 239b, 739b Second discharge opening 240 Elastic member 250 Roller guide 251 Roller 252 Roller holding part 252a Holding part 252b Leg part 253 Support part 254 Nut 300 Fluid supply device 301 Fluid supply piping 400 Dust suction device 401 For dust suction Piping 500 Air supply device 501 Air supply piping 910 Fixed part 911 Pedestal part 911a Abutment part 911b Separation part 912 Bolt 931 Upper part 932 Lower part

Claims (7)

A peeling part that peels off the coating film and the coating film base on the surface to be peeled off,
The first cover body arranged so as to cover the peeled portion and
A coating film base suction device including a double cover with a second cover body arranged so as to further cover the first cover body. The coating film base suction device according to claim 1, wherein the peeling portion includes a rotating body that peels off the coating film and the coating film base by injecting a fluid. The coating film base suction device according to claim 1, wherein the peeling portion includes a grinder. Each of the first cover body and the second cover body has a discharge port for discharging dust generated by peeling the coating film and the coating film base and at least one of the fluids containing the dust to the outside. ,
The first discharge port formed in the first cover body includes a first cylindrical portion formed so as to communicate the inside and the outside of the first cover body.
Claim 1, claim 2 or claim including a second tubular portion formed so that the second discharge port formed in the second cover body communicates with the inside and the outside of the second cover body. Item 3. The coating film base suction device according to Item 3. The coating film base suction device according to claim 4, wherein the tip of the first tubular portion protrudes into the second tubular portion. The coating film base suction device according to any one of claims 1 to 5, wherein the second cover body has an upper portion and a lower portion attached to the upper portion. The coating film base suction device according to any one of claims 1 to 6.
A fluid supply device that supplies the fluid to the coating film base suction device,
A coating film base suction system including the dust and a dust suction device for sucking a fluid containing the dust discharged from the paint film base suction device.

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