JP4745856B2 - Wall cover and covering material removing method using the same - Google Patents

Description

  The present invention generally relates to a wall cover and a method for removing a covering material using the wall cover, and more particularly, to a wall cover covering a wall surface to which a fireproof covering material or the like is attached, and such a wall cover is used. The present invention relates to a covering material removing method for removing a covering material from a wall surface.

  In order to improve the heat resistance (fire resistance) of buildings and the like, a covering material is attached to the inner wall surfaces of factories, warehouse slate walls, parking lots, and concrete walls of building machine rooms.

  When such a covering material is found to be harmful to the human body after the building is completed, such as asbestos, it is covered and enclosed to prevent dust emission from the covering material while the building is in use. When the building is dismantled, the covering material must be removed from the wall surface while preventing the dust from spreading from the covering material to the surroundings.

  For this reason, during use of the building, the wall to which asbestos is attached is enclosed with a board, and when the building is demolished, the assembling site is covered with a plastic sheet or the like in order to prevent the asbestos from scattering. Is removed from the wall, and then the building itself is dismantled.

  However, the above method requires complicated work to enclose the wall surface to which asbestos is adhered with a board, and further requires another operation of enclosing the entire demolition site with a vinyl sheet or the like when the building is demolished. Therefore, there is a problem that costs and labor are increased.

  Such a problem may occur not only asbestos but also when other covering materials such as rock wool are adhered to the wall surface.

The present invention has been made to solve such a problem. During the lifetime of the building, the wall surface to which the covering material is attached is enclosed, and at the time of dismantling the building, an operator can apply the wall surface from the outside. An object of the present invention is to provide a wall surface cover capable of covering a wall surface to which a covering material is adhered while forming a closed work space for removing the covering material around the wall surface.
Another object of the present invention is to provide a method for removing a covering material using a wall cover as described above.

  In order to achieve the above object, according to the present invention, there is provided a cover for covering a wall surface of a building to which a covering material is adhered, an inner membrane member formed of a transparent material, an opaque material, and an outer edge portion. An outer membrane member that is joined to the inner membrane member and disposed to overlap the inner membrane member, and a waste bag connected so as to open from one side to the other side of the inner membrane member, A wall surface cover is provided, wherein the inner membrane member includes a plurality of working ports having a hole and a cylindrical member having one end connected to the hole and the other end configured to be openable and closable. .

  The wall surface cover of the present invention having such a configuration can be easily attached so as to cover the wall surface to which the covering material is attached via an attachment member arranged around the wall surface to be covered. And, during the period when the building is used, the wall surface is covered in this state, so that the wall surface to which the coating material is attached is visibly hidden by the opaque outer membrane member and is attached to the wall surface. The scattering of the material can be prevented.

Also, when dismantling the building, at least the central portion of the opaque outer membrane member is removed by cutting away, etc., and the transparent inner membrane member is exposed so that the operator can attach the covering material to the wall surface. In this state, it is possible to insert a tool from the work port and remove the covering material attached to the wall surface, and perform the operation of storing in a waste bag connected to the inner membrane member. Become.
Therefore, it is possible to shift to a state in which an operation of removing the covering material attached to the wall surface is possible only by a simple operation of removing the outer membrane member.

According to another preferred aspect of the present invention, the waste bag is configured to be separable from the inner membrane member.
According to such a configuration, by separating the waste bag from the inner membrane member, the covering material removed from the wall surface and accommodated in the waste bag can be easily discarded without being scattered around.

According to another preferred aspect of the present invention, the waste bag is configured so that an opening cut off from the inner membrane member can be closed.
According to such a structure, when discarding the covering material accommodated in the waste bag, it is possible to reliably prevent the covering material from being scattered around.

According to another preferred embodiment of the present invention, the opening of the waste bag is closed by a hook-and-loop fastener.
According to such a configuration, the opening of the waste bag can be easily and inexpensively closed.

According to another preferred aspect of the present invention, an air vent member is attached in the vicinity of the surface fastener.
According to such a configuration, air can be extracted from the space in the closed waste bag, and the volume of the waste bag that becomes waste can be reduced.

According to another preferred aspect of the present invention, the air vent member is provided with a filter.
According to such a configuration, when the air is extracted, the covering material is prevented from being scattered outside the waste bag together with the air.

  According to another aspect of the present invention, an inner membrane member formed of a transparent material, and an outer membrane member formed of an opaque material and joined to the inner membrane member at an outer edge portion and disposed on the inner membrane member. The inner membrane member includes a plurality of working ports having a hole portion and a cylindrical member having one end connected to the hole portion and the other end side being openable and closable, and an opening formed in the inner membrane member. A covering material removing method for covering a wall surface of a building to which a covering material is adhered and removing the covering material using a wall surface cover provided with a waste bag connected to the wall, A step of installing a wall surface cover attaching member; and a work space having a predetermined width between the inner wall member and the wall surface by arranging the inner membrane member on the wall surface side and connecting an outer edge portion of the wall surface cover to the attachment member. Steps that cover the wall surface with the Removing at least a central portion of the outer membrane member from the wall surface cover; and inserting a tool into the working space from the work port provided in the inner membrane portion to adhere to the wall surface. And a step of peeling the covering material from the wall surface with the tool and storing the covering material in the waste bag.

According to such a configuration, during the period in which the building is in use, the wall surface to which the covering material is attached is surrounded by the bag body in a good-looking state to prevent the covering material from being scattered, When disassembling, remove at least the central part of the opaque outer membrane member, expose the transparent inner membrane member, and allow the operator to visually check the wall surface to which the coating material is attached, while seeing the tool from the work port. It becomes possible to remove the covering material attached to the wall surface by inserting.
Therefore, a simple operation of removing at least the central part of the outer membrane member from the wall cover makes it possible to remove the wall cover without scattering while visually checking the coating material attached to the wall surface. Can be made.

  According to another preferred aspect of the present invention, the method further includes the step of separating the waste bag from the inner membrane member and closing the separated opening.

According to another preferred aspect of the present invention, the step of peeling the covering material from the wall surface with the tool and storing the covering material in the waste bag is performed in a state where the space between the inner membrane portion and the wall surface is decompressed. Is called.
According to such a configuration, even if the membrane member is torn during the work, air does not flow from the space between the inner membrane portion and the wall surface to the indoor side, so the membrane member is torn during the work. In addition, the covering material being removed is reliably prevented from flowing out into the room.

According to the present invention, during use of a building, the wall to which the covering material is attached is enclosed, and when the building is dismantled, a closed work space in which an operator removes the covering material on the wall from the outside is provided around the wall surface. A wall surface cover that can cover the wall surface to which the covering material is attached is provided.
Moreover, according to this invention, the coating | covering material removal method using the wall surface cover as mentioned above is provided.

  Hereinafter, a wall surface cover 1 according to a preferred embodiment of the present invention will be described with reference to the accompanying drawings. Wall cover 1 covers inner walls such as factories, warehouse slate walls, parking lots, concrete walls of building machine rooms, etc., to which a harmful covering material such as asbestos is attached to improve heat resistance and the like. It is a cover used for.

  FIG. 1 is an exploded perspective view of the wall surface cover 1. As shown in FIG. 1, the wall surface cover 1 is composed of an inner membrane member 2 made of a rectangular membrane material and a membrane material having substantially the same size and shape as the inner membrane member 2. And an outer membrane member 4.

  The wall surface cover 1 covers the wall surface in a state of being separated from the wall surface by a predetermined distance by being connected to a steel frame or the like whose outer edge portion supports the wall surface to be covered. Accordingly, the dimensions of the wall cover 1 are set so as to match the interval of the steel frames to be connected, and are, for example, about 2 to 5 m in width and about 4 to 8 m in length.

  The inner membrane member 2 is made of a transparent membrane material. Examples of the transparent material include a vinyl chloride resin film, a fluororesin film, a polyolefin resin film, other synthetic resin films, a material in which a vinyl chloride resin system is coated on a polyester fiber cloth, and a polyolefin resin as a polyolefin fiber. Examples include materials coated on cloth.

  The outer membrane member 4 is made of an opaque membrane material. Examples of the opaque material include a material in which a polyester fiber cloth is coated with a vinyl chloride resin, a material in which a polyolefin fiber cloth is coated with a polyolefin resin, a material in which a polyester fiber cloth is coated with a fluorine resin, and a glass fiber with a fluorine resin. Examples include materials coated on cloth, glass fibers, and the like.

In the inner membrane member 2, a plurality of circular holes 6 are formed at predetermined intervals over almost the entire surface. One end of a cylindrical member 8 made of a membrane material is connected to the periphery of each hole 6 on the surface facing the outer membrane member 4 to form a working port 10. The other end (open end) of the cylindrical member 8 is configured to be closeable by an elastic member such as rubber. The cylindrical member 8 is preferably formed of the same film material as the inner film member 2.
In the present embodiment, the work ports 10 are arranged at intervals of 60 to 100 cm.

  One end of the inner membrane member 2 in the longitudinal direction is connected to an elongated waste bag 12 extending over the entire length in the width direction of the inner membrane member 2. The waste bag 12 is connected to the surface on the outer membrane member 4 side of the inner membrane member 2 so as to open from the surface on the outer membrane member 4 side of the inner membrane member 2 toward the other surface.

  In the present embodiment, the waste bag 12 includes three bag members 14 that are continuously arranged in series along the width direction of the inner bag member 2. Each bag member 14 is independent, and each bag member 14 is formed on one surface of the inner membrane member 2 so as to open from one surface of the inner membrane member 2 (side surface of the outer membrane member 4) toward the other surface. It is connected. Adjacent walls of adjacent bag members 14 are detachably connected at the upper end by hook and loop fasteners.

  In the wall surface cover 1 of the present embodiment, each bag member 14 is engaged with the surface fastener 16 provided near the opening end of each bag member 14 with the surface fastener 18 provided at one end of the inner membrane member 2. By being combined, the inner membrane member 2 is detachably connected.

  In addition, each bag member 14 is configured to be able to close the opening end and seal the inside by engaging the face fasteners 16 facing each other in the vicinity of the opening end after being separated from the inner membrane member 2. Has been.

  Further, an air vent member 20 is attached to the surface fastener 16. The air vent member 20 is a check valve with a built-in filter. In the present embodiment, at least one air vent member 20 is provided in each bag body 14.

  As shown in FIG. 1, L-shaped notches 22 and three circular punching holes 24 arranged at both ends and corners of the notches 22 are provided at the four corners of the outer membrane member 4. ing. Both the notch 22 and the punching hole 24 penetrate the outer membrane member 4 in the thickness direction.

The inner membrane member 2 is overlaid in alignment with the outer membrane member 4 so that the waste bag 12 constituted by the cylindrical member 8 and the three bag members 14 faces the outer membrane member 4, and the outer edge portion. It is joined with. Therefore, the waste bag 12 constituted by the cylindrical member 8 and the three bag members 14 is disposed between the inner membrane member 2 and the outer membrane member 4 in a folded state.
A pocket P is provided at one end of the outer membrane member 4 to accommodate a manual showing how to handle the wall surface cover 1 and a tape cutter to be described later for cutting the outer membrane member 4.

  Next, the usage method of the wall surface cover 1 is demonstrated. FIG. 2 is a perspective view showing a state in which the ceiling wall and the side wall of the building to which asbestos is adhered are covered with the wall surface cover 1, and FIG. 3 is a cross-sectional view taken along the line III-III in FIG.

The wall surface cover 1 covers the side wall surface 28 and the ceiling wall surface 30 to which the asbestos 26 adheres so that the opaque outer membrane member 4 faces the indoor side when the building is used. At the side wall surface 28, the wall surface cover 1 is connected to a rail 40 having a substantially U-shaped cross section attached to the steel frames 32, 34, 36, 38 surrounding the side wall surface 28, and these steel frames 32, 34, 36 are connected. , 38 is covered. The rail 40 is omitted in the perspective view of FIG.

  First, as shown in FIG. 4, the edge portion 1a of the wall surface cover 1 that covers the side wall has a U-shaped cross section that is attached to the side end surfaces of the steel frames 32, 34, 36, and 38 having an H-shaped cross section with bolts or the like. It is arranged along the inner peripheral surface of the rail 40 of the mold. Next, a spring 44 as shown in FIG. 5 is arranged inside the side end portion of the wall surface cover 1. Since the width W of the spring 44 is set to be larger than the width of the inner peripheral surface of the rail 40, the spring 44 disposed inside the side end portion of the wall surface cover 1 is between the rail 40 and the wall surface cover 1. The edge part 1a is clamped and the edge part 1a of the wall surface cover 1 is connected to each steel frame 32, 34, 36, 38.

  In this way, the wall surface cover 1 is fixed at a predetermined distance from the side wall surface 28 to which the asbestos 26 is attached, and the inner space surrounding the side wall surface 28 together with the surrounding steel frames 32, 34, 36, 38. To cover the side wall surface 28 and prevent the asbestos 26 from scattering from the side wall surface 28 into the room.

  The ceiling wall surface 30 is covered in the same manner as the side wall surface 28 by a wall surface cover 1 ′ different from the wall surface cover 1 only in that the waste bag 12 is not provided. In addition, in this embodiment, it is comprised so that the space between the ceiling wall surface 30 and wall surface cover 1 'which covers this, and the space between the side wall surface 28 and the wall surface cover 1 which covers this may continue. .

  The wall surface cover 1 of this embodiment covers all the inner wall surfaces of the factory etc. to which asbestos is made to adhere by attaching between the adjacent steel frames in this way.

When disassembling a building or removing asbestos adhered to a wall surface, the worker O places the front portion 48 of the tape cutter 46 as shown in FIG. The outer membrane member 4 is cut along the outer edge (shown by a dotted line in FIG. 2) with the cutting blade 50 to cut the central portion of the outer membrane member 4 and expose the transparent inner membrane member 2. Let Thus, by cutting out the central portion of the outer membrane member 4, the working port 10 of the inner membrane member 2 and the waste bag 12 appear on the indoor side (FIG. 7).
In FIG. 7, for the sake of clarity, the working port 10 and the waste bag 12 are shown in a pulled state. However, since they are actually made of a membrane material, they hang downward. It is in the state.

  Next, as shown in FIG. 8, the suction nozzle 52 connected to the suction machine (negative pressure dust removing device with HEPA filter) S is inserted between the wall cover 1 and the side wall surface 28 from one of the work ports 10. Plug into the space. The work port 10 into which the suction nozzle 52 is inserted is tightened from the outside by rubber or a string from the outside, and the cylindrical member 8 is brought into close contact with the outer periphery of the suction nozzle 52. The suction machine S is provided with a filter capable of removing asbestos.

  The suction machine S is operated to decompress the space between the wall surface cover 1 (inner membrane member 2) and the side wall surface 28, while removing the spatula H with a cane from one of the work ports 10 with the wall surface cover 1. The asbestos 26 attached to the surface of the side wall surface 28 is scraped off into the space between the side wall surface 28 and the scraped coating material 26 ′ is dropped into the waste bag 12 (bag member 14). The operator proceeds the work while visually recognizing the side wall surface to which the asbestos 26 is adhered through the transparent inner membrane member 2. The other working port 10 is closed from the outside by rubber or a string.

  As shown in FIG. 8, the suction nozzle 52 is connected to the wall surface cover 1 (exposed inner membrane member 2) so as to pull the wall surface cover 1 (exposed inner membrane member 2) to the indoor side. Even if the space between the wall surface cover 1 (inner membrane member 2) and the side wall surface 28 is reduced by the machine S, the wall surface cover 1 (exposed inner membrane member 2) is pulled indoors and the wall surface cover 1 (exposed). A sufficient working space is ensured between the inner membrane member 2) and the side wall surface 28.

  When scraping is completed from one work port 10, the spatula H is inserted from the other work port 10, and the same operation is continued to scrape off the asbestos 26 from the entire side wall surface 28.

  Further, the same operation is performed on the ceiling wall surface. As described above, in the present embodiment, the wall surface cover 1 ′ covering the ceiling wall surface 30 does not include the waste bag 12, the space between the ceiling wall surface 30 and the wall surface cover 1 ′ covering this, the side wall surface 28, and this Since the asbestos 26 scraped off from the ceiling wall surface 30 also covers the side wall surface, the waste bag 12 (bag member 14) of the wall surface cover 1 covers the side wall surface. Fall into.

In the wall surface cover 1 of the present embodiment, the wall surface cover 1 is shifted to a state in which the operation of removing the asbestos 26 attached to the wall surfaces 28 and 30 can be performed by a simple operation of cutting off the central portion of the outer membrane member 4. Can do. At this time, since the opening end (tip) of the working port 10 is closed with rubber or a string, the scraped asbestos does not scatter into the room.
Further, during the removal of asbestos, the space between the wall surface cover 1 and the wall surfaces 28 and 30 is reduced in pressure, so that the wall surface cover 1 should be damaged or a gap between the wall surface cover 1 and the steel frame. Even if it is possible, asbestos is prevented from being scattered indoors from a damaged part or the like.
Furthermore, since the asbestos 26 can be visually recognized through the transparent inner membrane member 2, the asbestos 26 can be reliably scraped off from the wall surfaces 28 and 30.

  When the scraping operation of the asbestos 26 from the wall surfaces 28 and 30 is completed, the surface fastener 16 attached in the vicinity of the opening end of each bag member 14 is removed from the surface fastener 18 provided at one end portion of the inner membrane member 2. Each bag member 14 is separated from the inner membrane member 2 by peeling off (FIG. 9).

Further, by engaging the face fasteners 16 facing each other in the vicinity of the opening end of each bag member 14, the opening end of each bag member 14 is closed and the inside of the bag member 14 is sealed.
Further, after the air inside the bag member 14 is drawn through the air vent member 20 to the surface fastener 16, the bag member 14 is discarded together with the asbestos 26 'scraped off.

  FIG. 10 is a view similar to FIG. 10 in a state where the ceiling wall surface 30 is also covered with the wall surface cover 1 of the above embodiment including the waste bag 12. In this configuration, the space between the ceiling wall surface 30 and the wall surface cover 1 covering it and the space between the side wall surface 28 and the wall surface cover 1 covering this are separated and adhered to the ceiling wall surface 30. Asbestos is accommodated in the waste bag 12 of the wall surface cover 1 covering the ceiling wall surface 30 and is discarded together with the waste bag 12.

FIG. 11 is a perspective view of a state in which the wall cover 1 is attached to a concrete flat ceiling wall surface using a concrete beam as viewed from below.
In such a wall surface, the L-shaped metal fitting 54 shown in FIG. 12 is fixed to the inner surface of the beam 56 with a screw 58, and the U-shaped receiving section 54a provided on the metal fitting 54 is attached to the wall 54. The edge portion 1a of the wall surface cover 1 is accommodated, and the edge portion 1a is pressed against the U-shaped receiving portion 54a by an elastic metal fitting 60 having a U-shaped cross section from the inside of the edge portion 1a. 1 a can be connected to the beam 56.

  The present invention is not limited to the above-described embodiment, and various changes and modifications can be made within the scope of the technical idea described in the claims.

In the embodiment described above, the waste bag 12 is formed at the end of the wall cover 1, but may be formed at a position other than the end, for example, at the center of the wall cover 1.
Moreover, although the wall surface cover 1 of the said embodiment was the structure by which the L-shaped notch 22 was formed in the four corners of the outer membrane member 4, the shape, position, and number of the notch may differ. Further, a perforation along the central portion of the outer membrane member 4 to be removed may be formed in the outer membrane member 4 in place of the notch 22.

  Furthermore, in the said embodiment, although the waste bag 12 is comprised from the three bag members 14, a waste bag may be comprised from 1 or 4 or more bag members.

  Further, the method of arranging the edge of the wall cover on the wall surface is not limited to the method of the above embodiment using rails, springs, or the like.

It is a disassembled perspective view of the wall surface cover of preferable embodiment of this invention. It is a perspective view which shows the state which covered the ceiling wall and side wall of the building to which asbestos was made to adhere with the wall surface cover. It is sectional drawing along the III-III line of FIG. It is typical sectional drawing which shows the connection method to the steel frame of the edge part of a wall surface cover. It is a top view of the spring used when connecting the edge of a wall surface cover to a steel frame. It is a top view of the tape cutter used when cutting out the center part of an outer membrane member. It is a perspective view similar to FIG. 2 in the state where the center part of the outer membrane member was cut off. It is drawing for demonstrating asbestos removal work. It is a perspective view similar to FIG. 7 of the state which removed the waste bag. It is a perspective view of the modification of FIG. It is the perspective view which looked at the state which attached the wall surface cover to the concrete flat ceiling wall surface using a concrete beam from the downward direction. It is typical sectional drawing which shows the connection method to the steel frame of the edge part of the wall surface cover in FIG.

Explanation of symbols

1: Wall cover 2: Inner membrane member 4: Outer membrane member 6: Hole 8: Cylindrical member 10: Work port 12: Waste bag 14: Bag member 26: Asbestos 28: Side wall surfaces 32, 34, 36, 38 : Steel frame 40: Rail 44: Spring

Claims (12)

A cover that covers the wall of the building to which the covering material is adhered,
An inner membrane member formed of a transparent material;
An outer membrane member that is formed of an opaque material, is joined to the inner membrane member at an outer edge portion, and is placed on the inner membrane member;
A waste bag connected so as to open from the one side to the other side of the inner membrane member;
The inner membrane member includes a plurality of working ports having a hole and a cylindrical member having one end connected to the hole and the other end configured to be openable and closable.
A wall cover characterized by that. The waste bag is configured to be separable from the inner membrane member,
The wall cover according to claim 1.   The wall cover according to claim 2, wherein the waste bag is configured so that an opening cut off from the inner membrane member can be closed. Closing the waste bag opening is performed by hook and loop fasteners,
The wall cover according to claim 3. An air vent member is attached in the vicinity of the surface fastener,
The wall cover according to claim 4. A filter is provided on the air vent member,
The wall cover according to claim 5. The four corners of the outer Gawamaku member, cuts are formed,
The wall surface cover according to any one of claims 1 to 6. Perforations along the central portion of the outer Gawamaku member is formed,
The wall cover according to any one of claims 1 to 7. The inner membrane member has a pocket on the surface opposite to the outer membrane member.
The wall surface cover according to any one of claims 1 to 8. An inner membrane member formed of a transparent material, and an outer membrane member formed of an opaque material and joined to the inner membrane member at an outer edge portion and disposed on the inner membrane member, the inner membrane member having a hole And a waste bag connected to the opening formed in the inner membrane member, and a plurality of working ports having a cylindrical member configured to be openable and closable at one end. A covering material removing method for covering the wall surface of the building to which the covering material is adhered using the wall surface cover, and removing the covering material;
Installing a wall cover attaching member around the wall;
Covering the wall surface with the inner membrane member disposed on the wall surface side and connecting an outer edge of the wall surface cover to the mounting member, leaving a working space of a predetermined width between the wall surface and the mounting member; ,
Removing at least a central portion of the outer membrane member from the wall cover;
A step of inserting a tool into the working space from the working port provided in the inner membrane portion, peeling off the covering material attached to the wall surface from the wall surface with the tool, and storing it in the waste bag And,
A method for removing a covering material. Detaching the waste bag from the inner membrane member and further closing the separated opening;
The coating material removing method according to claim 10. The step of peeling the covering material from the wall surface with the tool and storing it in the waste bag is performed in a state where the space between the inner membrane member and the wall surface is decompressed,
The method for removing a coating material according to claim 10 or 11.

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