JP7360589B1 - Dust diffusion prevention device - Google Patents

Abstract

An object of the present invention is to provide a dust diffusion prevention device that can be used for construction work targeting ceilings in buildings and can be adapted to work site conditions within a certain range. [Solution] Fixed columns 1a and 1b installed vertically on the floor, movable columns 2a and 2b that can be stored and pulled out into the fixed columns 1a and 1b, and a horizontal connection between the upper ends of the movable columns 2a and 2b. A dustproof sheet 15 is suspended from the horizontal member 4 within a frame formed by the member 4. The horizontal member 4 at the opposing position has a structure in which the length can be adjusted within a certain range by slidably fitting the tubular members 4b and 4c to both ends of the rod-like member 4a, and the movable columns 2a and 2b are bent. By making this possible, the length of one opposing side of the rectangle formed by the horizontal member 4 can be adjusted. The hanging height of the dustproof sheet 15 and the area surrounded by the dustproof sheet 15 can be adjusted within a certain range according to the ceiling to be constructed. Further, by installing the suction port of the dust collector in the area covered by the dustproof sheet 15, leakage of dust to the outside of the sheet can be prevented. [Selection diagram] Figure 1

Description

TECHNICAL FIELD The present invention relates to an apparatus for preventing the spread of dust generated during indoor ceiling repair work or work for attaching articles to a ceiling.

In order to renew or renovate a house or building, we may replace ceiling panels, install lighting fixtures, etc., and perform electrical work. In this case, it is necessary to protect the floors and interior walls, but areas within the building that are not subject to construction may be used as usual, and it is essential to prevent the spread of dust generated during the work. There is.

In construction work, not only indoors but also in various cases, measures are taken to prevent the spread of dust and objects falling from high places from reaching areas other than the area where construction is being carried out. Document 1 describes a dust-proof net stretched along a construction area where dust is generated, a water sprinkling means for sprinkling water on the dust-proof net, and a method for determining whether or not the conditions for watering the dust-proof net are met. A dust prevention device is disclosed, comprising: a control means for causing the water sprinkling means to sprinkle water on the dustproof net for a predetermined water sprinkling time if the water sprinkling implementation conditions are satisfied. .

However, the dustproof device disclosed herein is designed to be used outdoors, uses water to completely prevent the spread of dust, and is not suitable for indoor work.

Further, Patent Document 2 describes a dustproof curing device used when performing ceiling renovation by placing scaffolding below a ceiling renovation work area in an existing room, which includes a floor sheet laid on the scaffold floor; A side sheet covering the periphery of the scaffold floor and laid between the scaffold floor and the ceiling surface is provided to define a ceiling repair work booth with an open upper part on the scaffold floor. A dustproof curing device for ceiling renovation in an existing room, which is characterized by its features, is disclosed.

The dustproof curing device for ceiling renovation disclosed herein is constructed on the assumption that it will be used outdoors, but the structure is fixed and the design needs to be adjusted depending on the situation of the area where the work will be carried out. , and is somewhat lacking in versatility.

Japanese Patent Application Publication No. 2014-152589 Japanese Patent Application Publication No. 2000-336941

SUMMARY OF THE INVENTION In view of the above-mentioned problems, an object of the present invention is to provide a dust diffusion prevention device that can be used indoors and can be adapted to work site conditions within a certain range.

In order to solve the above-mentioned problem, the inventor of the present invention has intensively studied a configuration in which the sheet is attached to a frame whose dimensions can be applied to the situation of the workplace within a certain range by appropriately adjusting the combination of rod-shaped members. This led to the invention.

In order to solve the above problems, a dust diffusion prevention device according to one aspect of the present invention includes at least four fixed columns having a tube shape and installed perpendicularly to a floor surface, and a bendable joint. At least four rod-shaped members, each of which is housed inside a tube constituting the fixed column and whose upper end can be pulled out to the outside of the fixed column, are formed by joining two first rod-like members via A tubular member is disposed between a movable column and the upper ends of a pair of movable columns that face each other in a direction in which the movable column can be bent, and is slidably fitted to both ends of a second rod-shaped member. at least two first horizontal members whose overall length can be changed within a certain range by adjusting the relative positional relationship between the second rod-like member and the tubular member; at least two second horizontal members disposed in a direction perpendicular to the direction in which the first horizontal members are disposed and joining both ends of each of the pair of first horizontal members; and the movable support column. a three-way joining member having an adapter connecting an upper end, one end of the first horizontal member, and one end of the second horizontal member; the first horizontal member; and the third horizontal member. and a sheet that is joined on one side to the second horizontal member and covers a surface constituted by the fixed support, the movable support, the first horizontal member, and the second horizontal member. Features.

Further, the dust diffusion prevention device according to one aspect of the present invention is characterized in that a work table and a storage stand are arranged in a direction perpendicular to the fixed support and supported by the fixed support.

Further, a dust diffusion prevention device according to one aspect of the present invention is characterized in that a suction port of a dust collector is arranged in a space surrounded by the sheet.

The dust diffusion prevention device according to the present invention suspends a sheet from a first horizontal member and a second horizontal member, which are supported by a movable support that is bendable and whose length can be adjusted within a certain range from a fixed support. It has a lowering structure, and the horizontal area surrounded by the sheet and the installation height of the sheet can be arbitrarily adjusted within a certain range, so it is possible to cover the area of the ceiling to be worked on without creating any gaps.

In addition, a workbench or storage stand can be connected to the fixed column, ensuring industrial safety at the required position within the space enclosed by the sheet, and allowing dust collectors to be attached to the workbench or storage stand. Since it is also possible to install a suction port, it is possible to prevent dust generated during construction from spreading outside the area surrounded by the sheet.

A front view of an example of a dust diffusion prevention device according to the present invention A diagram showing an example of a state in which the movable column of the dust diffusion prevention device according to the present invention is housed in the fixed column. A side view of an example of a dust diffusion prevention device according to the present invention

Next, embodiments of the present invention will be described with reference to specific drawings. FIG. 1 is a front view of an example of a dust diffusion prevention device according to the present invention, and FIG. 2 is a diagram showing an example of a state in which a movable column of the dust diffusion prevention device according to the present invention is housed in a fixed column. 3 is a side view of an example of the dust diffusion prevention device according to the present invention.

As shown in FIGS. 1 and 2, an example of the dust diffusion prevention device according to the present invention includes fixed columns 1a, 1b, and 1c installed perpendicularly to the floor surface, and four fixed columns (not shown). A movable support 2a, 2b, 2c and a movable support (not shown) are housed inside each fixed support in a slidable state. FIG. 2 shows the movable column housed within the fixed column.

The movable column has a pair of rod-shaped members joined at bent portions 3a, 3b, and 3c (not shown), and when the movable column is pulled out until the bent portions are exposed from the fixed column, the movable column is moved in the direction of the arrow in FIG. A first horizontal member 4 is joined between the movable columns 2a and 2b via three-way joining members 5a and 5b. The three-way joint member may also have a structure in which the angle formed by the adapter at which the movable column and the first horizontal member are joined can be adjusted.

The first horizontal member 4 consists of a second rod-like member 4a and tubular members 4b and 4c that are fitted at both ends of the second rod-like member 4a, so that the entire length of the first horizontal member 4 is can be extended within a certain range.

The length of the movable support from the fixed support can be adjusted within a certain range, so the distance between the floor and the first horizontal member 4, or in other words, the distance between the first horizontal member 4 and the ceiling to be worked on, can be adjusted within a certain range. The distance can be adjusted within a certain range.

Further, as shown in FIG. 2, a second horizontal member 6a is joined to the upper ends of the movable columns 2b and 2C via three-way joining members 5b and 5c. As a result, the first horizontal member and the second horizontal member form a rectangle that surrounds the area to be worked on the ceiling, and by suspending the sheet 15 from the two horizontal members, the ceiling and the area immediately below it are It becomes possible to sub-cover the space between the floors with a sheet.

The fixed support is provided with braces 14, a workbench 7, a storage stand 8, extrusion prevention girders 8a, 8b, outriggers 10a, 10b, etc., so that the worker can ride in the space inside the seat and be safe. As mentioned above, you can work on Furthermore, by installing the suction port 13 of the dust collector 12 on the workbench or storage stand, it is possible to prevent dust generated during work from leaking to the outside.

As explained above, according to the present invention, a dust diffusion prevention device prevents dust caused by the work from leaking outside the area targeted for construction when construction is performed on a ceiling part of a building. can be provided. It should be noted that the present invention is not limited to the above-mentioned embodiments, and various modifications can be made that can be conceived by a person having ordinary knowledge in the field of the present invention, such as increasing the number of fixed columns to six. It goes without saying that even if there are design changes, including deformations and modifications, that do not depart from the spirit of the present invention, they are included in the present invention.

1a, 1b, 1c...Fixed support 2a, 2b, 2c...Movable support 3a, 3b, 3c...Bending portion 4...First horizontal member 4a...Second rod-shaped member 4b, 4c... Tubular members 5a, 5b, 5c... Three-way joint member 6... Second horizontal member 7... Workbench 8a, 8b... Extrusion prevention girder 9... Storage stand 10a, 10b ...Outriggers 11a, 11b, 11c...Casters 12...Dust collector 13...Suction port 14...Brace 15...Dustproof sheet

Claims (3)

at least four fixed columns having a tube shape and installed perpendicular to the floor surface;
Two first rod-shaped members are joined via a bendable joint, each of which is housed inside a tube constituting the fixed support, and the upper end can be pulled out to the outside of the fixed support. , at least four movable columns;
A tubular member is disposed between the upper ends of a pair of movable struts facing each other in a direction in which the movable struts can be bent, and is slidably fitted to both ends of a second rod-shaped member, at least two first horizontal members whose overall length can be changed within a certain range by adjusting the relative positional relationship between the second rod-like member and the tubular member;
at least two second horizontal members joining both ends of each of the pair of first horizontal members in a direction perpendicular to the direction in which the first horizontal members are arranged; and an upper end of the movable column. and a three-way joint member having an adapter that connects one end of the first horizontal member and one end of the second horizontal member;
One side is joined to the first horizontal member and the second horizontal member, and is configured by the fixed support, the movable support, the first horizontal member, and the second horizontal member. a sheet that covers the surface of the
A dust diffusion prevention device characterized by having. 2. The dust diffusion prevention device according to claim 1, further comprising a workbench and a storage stand supported by the fixed support and arranged in a direction perpendicular to the fixed support. 3. The dust diffusion prevention device according to claim 1, wherein a suction port of a dust collector is arranged in a space surrounded by the sheet.

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