JPH11210221A - Scaffold with dustproof device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a scaffold with a dustproof device capable of shortening the term of works. SOLUTION: Poles 22 are disposed in upright to the top face of a scaffolding floor 14, and each pole 22 is inserted into extending poles 24. Beam members 26 are connected at the upper ends of each extending pole 24 and assembled in a frame shape while the top faces of the beam members 26 are adjusted in height, in which the beam members 26 are brought into contact with a ceiling, and a working zone is formed between the ceiling and the scaffolding floor 14. The working zone is partitioned by a vinyl sheeting 28, and the vinyl sheeting 28 is formed in a baggy shape while the opening edge of the vinyl sheeting 28 is installed to the beam members 26. An exhaust port 29 is formed to the side face of the vinyl sheeting 28, and one end of a duct 30 for exhaust is mounted to the exhaust port 29. An exhaust fan 32 is set up at the other end of the exhaust duct 30, and air in the working zone is sucked by the exhaust fan 32, and exhausted through a filter 44.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a work scaffold with a dust-proof device, and more particularly to a work scaffold with a dust-proof device used in repairing building equipment, particularly when repairing a ceiling fan mounted on a ceiling.

[0002]

2. Description of the Related Art Facilities such as buildings are repaired at a period of 15 to 20 years for the purpose of preventing deterioration over time, changing applications, and providing other functions. Most of the repair work that replaces equipment by removing ceilings, walls, floors, etc. is done while staying on a company holiday. Work scaffolds are used for the work of removing ceilings in living rooms and replacing equipment such as ceiling fans. Conventional work scaffolds
It consisted of a scaffold floor formed in a rectangular shape and four support legs attached to four corners of the lower surface of the scaffold floor.

[0003]

However, in the conventional work scaffold, since dust generated during the work is diffused into the living room, curing before the work and cleaning after the work are necessary. For example, he had been pre-curing on Friday night. In the curing process, the work area was divided into partitions, plywood was placed so that floors and walls were not damaged, and vinyl sheets were placed on desks to prevent dust.

The work was performed on Saturday and Sunday mornings, and cleaning was performed on Sunday afternoons. During cleaning, the partitions, plywood and vinyl sheets used for curing were removed, and the entire living room was cleaned. As described above, since the time required for one operation is short due to the curing before the operation and the cleaning after the operation, the construction cannot be completed in one construction period. For this reason, there is a problem that the construction period becomes longer and thus the construction cost becomes higher.

[0005] The present invention has been made in view of such circumstances, and has as its object to provide a work scaffold capable of shortening the construction period.

[0006]

In order to achieve the above object, the present invention provides a scaffolding floor, a plurality of poles erected on an edge of the scaffolding floor, and an upper end of the plurality of poles. A beam member that is connected and assembled in a frame shape, a sheet that is formed in a bag shape, an opening edge of which is attached to the beam member and surrounds a work area formed between the poles, and the sheet or the scaffold floor And an exhaust fan connected to the exhaust duct and sucking air in the work area enclosed in the seat through the exhaust duct.

According to the first aspect of the present invention, a work area is formed by a sheet between a plurality of poles erected on the floor of a scaffold, and a worker works in the work area. Air in the work area is sucked by an exhaust fan through an exhaust duct. Dust generated during the operation is sucked through the exhaust duct or accumulates on the bottom surface of the sheet, and does not diffuse outside the sheet (non-work area). Therefore, when the work scaffold of the present invention is used, curing before work and cleaning after work can be omitted, and the construction period can be shortened. Therefore, construction costs can be reduced.

According to the second aspect of the present invention, since the pole is made extendable and retractable, the height of the work area can be adjusted according to the ceiling height. According to the third aspect of the present invention, the slit is formed in the inner peripheral surface of the beam member, and the dust generated from the ceiling is immediately sucked from the slit, so that the worker is not adversely affected by the dust.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of a work scaffold with a dustproof device according to the present invention will be described below in detail with reference to the accompanying drawings. FIG. 1 is an overall perspective view showing the configuration of the work scaffold according to the first embodiment, and FIG. 2 is a front view thereof. As shown in these figures, the work scaffold 10 includes a scaffold body 12, a pole 22, an extension pole 24, a beam member 26, a vinyl sheet 28, an exhaust duct 30, and an exhaust fan 32.
Is the main configuration.

The scaffold main body 12 comprises a scaffold floor 14 formed in a rectangular shape, and four support legs 16 attached to four corners of the lower surface of the scaffold floor 14. Four supporting legs 16
Is set to an interval and length capable of surrounding an office desk 18 of a general size, and a caster 20 is attached to a lower end of each support leg 16. The scaffold floor 14
The poles 22, 22,. A cavity is formed inside each extension pole 24, and the pole 22 is fitted into the cavity, so that the extension pole 24 can slide freely.

The beam member 26 is connected to the upper end of each extension pole 24 and is assembled in a frame shape. Each extension pole 2
By sliding 4 against the pole 22,
The height of the beam member 26 (the height of the working area) can be adjusted. A knob 36 is provided at the lower end of each extension pole 24. By tightening the knob 36, the height of the beam member 26 can be maintained at a constant height.

In use, the height of the beam member 26 is adjusted so that the upper surface thereof contacts the ceiling 34, and a work area is formed between the ceiling 34 and the scaffold floor 14. Workers 38, 3
8 repairs the ceiling fan 40 attached to the ceiling 34 in the work area. The sides of the work area are separated by a vinyl sheet 28. Vinyl sheet 28
Is formed in a bag shape, and its opening edge is attached to the beam member 26. The height of the vinyl sheet 28 depends on the beam member 26 and the scaffold floor 14 when the extension pole 22 is pulled up to the maximum.
Is set to be substantially the same as the interval between. By partitioning the work area with the transparent vinyl sheet 28, the lighting in the living room can be used even in the work area, and there is no need to bring a floodlight into the work area. For this reason, the work space can be used widely,
It is possible to prevent the temperature in the working area from rising due to the floodlight.

An exhaust port 29 is provided on the side of the vinyl sheet 28.
Is formed, and one end of an exhaust duct 30 is attached to the exhaust port 29. An exhaust fan 32 is provided at the other end of the exhaust duct 30, and air in the work area is exhausted by the exhaust fan 3.
2 and is exhausted through the filter 44. A zipper-type doorway 42 is provided on a side surface of the vinyl sheet 28, and the worker 38
2 enter and exit the work area.

FIG. 3 is an explanatory view showing a procedure for assembling the scaffold main body 12. When the scaffold body 12 is not used,
As shown in FIG. 3 (a), the scaffold floor 14 is
6 and folded into two floorboards 15, 15. At this time, the two floor plates 15 are rotatably connected to each other by a rotation shaft 17, and each floor plate 15 is rotatably supported on the upper end of the support leg 16.

When assembling the scaffold body 12, the support legs 16, 16 are expanded in the direction of the arrow. As a result, as shown in FIG. 3B, each floor plate 15 rotates in the direction of the arrow around the upper end of the support leg 16, and the angle between the floor plates 15, 15 about the rotation shaft 17 is changed. When the floor plate 15 is completely opened as shown in FIG. 3C, the assembling of the scaffold main body 12 is completed.

When the assembly of the scaffold main body 12 is completed, poles 22 are erected at the four corners of the upper surface of the scaffold floor 14, and
The beam member 26 is attached to the upper end of 2. Next, the beam member 26
Will be described. As shown in FIG. 4A, the beam member 26 includes a cylindrical cross beam 50 and a frame 52 having an open lower surface. A sponge is fixed to the upper surface of the frame 52 to cope with irregularities on the ceiling 34. And prevent the dust from diffusing out of the working area. When the frame 52 is moved in the direction of the arrow in the figure, the frame 52 is fitted into the cross beam 50 as shown in FIG. 4B, and the vinyl sheet 28 is sandwiched and fixed between the frame 52 and the cross beam 50 by its own weight. .

After the beam member 26 is assembled, the beam 26 is brought into contact with the ceiling 34 by sliding the extension pole 24 with respect to the pole 22, and a vinyl sheet 28 is provided between the ceiling 34 and the scaffold floor 14. Form a closed work area. One end of an exhaust duct 30 is attached to an exhaust port 29 formed on the side surface of the vinyl sheet 28, and an exhaust fan 32 is attached to the other end of the exhaust duct 30. This completes the curing.

Next, a method of using the work scaffold with the dustproof device configured as described above will be described. While the worker 38 enters the work area through the entrance 42 and operates the exhaust fan 32, the worker 38 performs a replacement operation of the ceiling fan 40 attached to the ceiling 34. At this time, the air in the work area is sucked by the exhaust fan 32 from the exhaust port 29 through the exhaust duct 30, and is exhausted through the filter 44. For this reason, light dust such as swarf generated when cutting a part of the ceiling 34 during work and dust on the ceiling 34 is collected by the filter 44, and heavy dust is not sucked through the exhaust port 29. It collects on the bottom of the vinyl sheet 28. Thus, the vinyl sheet 28 and the exhaust fan 32
This prevents dust and dirt generated during the work from diffusing out of the work area. Therefore, curing before the operation and cleaning after the operation can be omitted, and the construction period can be shortened and the construction cost can be reduced.

FIG. 5 is a perspective view showing the structure of the beam member 60 of the work scaffold according to the second embodiment. Four sides constituting the beam member 60 are formed in a hollow shape, and a slit 62 is formed in an inner peripheral surface thereof, and one end of a suction hose 64 is attached to an outer peripheral surface of each side. The other end of each suction hose 64 is collected in a duct 66, and the duct 66 is connected to the exhaust fan 32 via a switching valve 68. The switching valve 68 is connected to the exhaust port 29 via the exhaust duct 30. By operating the switching valve 68, the exhaust fan 32 is connected to the slit 62 or the exhaust port 29. When the switching valve 68 is opened to the slit 62 side, dust generated from the ceiling can be immediately sucked from the slit 62, and the switching valve 68 is opened.
Is opened to the exhaust port 29 side, dust in the work area can be sucked from the exhaust port 29 as described above.

In the above embodiment, the switching valve 68 switches between the slit 62 side and the exhaust port 29 side.
The slit 62 side is connected to an auxiliary exhaust fan, and the exhaust port 2
The exhaust fan 32 on the 9 side and the auxiliary exhaust fan on the slit 62 side may be operated separately. FIG. 6 is an explanatory diagram illustrating a method of connecting the two scaffold bodies 12. Insert holes 23, 23,... Are formed at the four corners of the upper surface of each scaffold body 12, and the poles 22 are inserted and erected in the insertion holes 23 at both end edges in the figure. Further, a gate-shaped connecting member 70 is inserted in two pairs of adjacent insertion holes 23 in the center in the figure in the direction of the arrow in the figure, and the two scaffold bodies 12 are connected.

In the above embodiment, the exhaust duct 30
Is attached to the side surface of the vinyl sheet 28, but the present invention is not limited to this, and an opening may be formed in the scaffold floor 14 and attached to this opening.

[0022]

As described above, according to the work scaffold with the dustproof device of the present invention, a plurality of poles are erected on the floor of the scaffold, and a work area is formed by attaching sheets to these poles. Since the work is performed in the work area and the air in the work area surrounded by the sheet is sucked by the exhaust fan, the curing before the work and the cleaning after the work can be omitted. Therefore, the present invention can shorten the construction period. Therefore, construction costs can be reduced.

[Brief description of the drawings]

FIG. 1 is an overall perspective view showing a configuration of a work scaffold according to a first embodiment.

FIG. 2 is a front view of the work scaffold shown in FIG. 1;

FIG. 3 is an explanatory view showing a procedure for assembling the scaffold body.

FIG. 4 is an explanatory view showing a procedure for assembling a beam member.

FIG. 5 is a perspective view showing a configuration of a beam member of the work scaffold according to the second embodiment.

FIG. 6 is an explanatory view showing a method of connecting two scaffold bodies.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 ... Work scaffold 12 ... Scaffold main body 14 ... Scaffold floor 16 ... Support leg 22 ... Pole 24 ... Extension pole 26, 60 ... Beam member 28 ... Vinyl sheet 29 ... Exhaust port 30 ... Exhaust duct 32 ... Exhaust fan 44 ... Filter 62 ... slit

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁶ Identification code FI E04G 1/34 E04G 1/34

Claims (3)

[Claims] 1. A scaffolding floor, a plurality of poles erected on an edge of the scaffolding floor, a beam member connected to upper ends of the plurality of poles and assembled in a frame shape, A sheet surrounding the working area formed between the pawls, the peripheral edge of the opening being attached to the beam member; an exhaust duct attached to the seat or the scaffold floor; and An exhaust fan for sucking air in the work area surrounded by a seat through the exhaust duct; and a work scaffold with a dustproof device. 2. The work scaffold with a dustproof device according to claim 1, wherein each of the poles is extendable and retractable with respect to the scaffold floor, and a height of the work area is adjustable. 3. The beam member is formed in a hollow shape.
The work scaffold with a dustproof device according to claim 1, wherein a slit communicating with the hollow portion is formed on an inner peripheral surface of the slit, and the hollow portion is connected to an exhaust fan.