JP3189105B2 - How to spread a disaster prevention safety sheet on a scaffold at a construction site - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for spreading a disaster prevention safety sheet on a scaffold at a construction site. More specifically, a disaster prevention safety sheet is pre-arranged in a unit constituting the scaffold, and this unit is sequentially raised. The present invention relates to a method of stacking a disaster prevention safety sheet on the entire scaffold by stacking in the vertical direction and connecting the horizontal direction.

[0002]

2. Description of the Related Art In order to spread a disaster prevention safety sheet on a conventional scaffold, first, a folded sheet is lifted by a crane on the uppermost part of the assembled scaffold, and the safety sheet is spread on a workbench at the uppermost stage. The rope is passed through the eyelet hole of the scaffold and connected to the vertical and horizontal support pipes at the top of the scaffold and hangs downward. Thereafter, ropes were passed through the eyelet holes at the side and lower end of the seat and connected to a support pipe to extend the seat.

[0003]

The conventional method of extending a safety sheet for disaster prevention is based on the necessity of spreading a heavy sheet on a narrow work table at a high position, connecting the support sheet to a support pipe, and hanging down the work sheet. There was a problem that the sheet could not be spread easily because of the danger of fluttering the sheet due to wind pressure.

[0004]

According to the present invention, there is provided a scaffold unit comprising a support pipe arranged at least at four corners, and a workbench installed on the support pipe, and horizontally laying a support post on the same plane. Attach the top end of the disaster prevention safety sheet to the upper end of the pipe, attach the side end of the disaster prevention safety sheet to several places between the upper and lower ends of the support pipe, and form a scaffolding unit where the disaster prevention safety sheet is arranged, and this unit 1. A method of spreading the disaster prevention safety sheet on a scaffold at a construction site by sequentially stacking and fixing each other in the height direction 2. Lower the ground surface side lower end of the support pipe on the building site side of the unit laid horizontally To raise the upper end slightly from the ground surface to form a working gap between the scaffolding unit and the ground surface, and in this state, to a support pipe on the same plane of the unit. 2. A method of spreading the disaster prevention safety sheet on the scaffold at the construction site described in paragraph 1, characterized by attaching the disaster prevention safety sheet 3. The disaster prevention safety sheet is provided on the ground surface side of the inclined scaffold unit. 3. A method of spreading a disaster prevention safety sheet on a scaffold at a construction site as described in paragraph 2, characterized in that the unit is attached to a support pipe, and the side end of the disaster prevention safety sheet is temporarily attached to several places of the support pipe. Any one of paragraphs 1 to 3 characterized by completely mounting after causing
The method of spreading the disaster prevention safety sheet on the scaffold at the construction site described in the section. 5. 5. The scaffolding unit according to any one of claims 1 to 4, wherein the scaffolding units provided with the disaster prevention safety sheets are arranged in a horizontal direction and connected to each other, and further stacked in the height direction to be fixed to each other to form a scaffold. The method of spreading the disaster prevention safety sheet on the scaffold at the construction site described in the section. 6. The connection ring is provided at the upper end of the disaster prevention safety sheet, and this ring is inserted into the upper end of the support pipe, and the upper end of the disaster prevention safety sheet is attached to the support pipe. A method for spreading a disaster prevention safety sheet on a scaffold at a construction site according to any one of the preceding claims. 7. Attachment of the support pipe and the side end of the disaster prevention safety sheet is performed using a blind hole provided in the seat and a fixture for fixing the seat to the support pipe through the hole.
Item 7. A method for spreading a disaster prevention safety sheet on a scaffold at a construction site according to any one of Items 6 to 6. 8. 7. The method for spreading a disaster prevention safety sheet on a scaffold at a construction site according to item 7, wherein the fixing tool is selected from a band, a string, a connecting ring, and the like. 9. The width of the disaster prevention safety sheet to be provided in the adjacent unit should be as long as the post of the adjacent unit, and the side of the seat at the side end of the paddle hole connected to the column of the unit and the hole of the paddle for the post of the adjacent unit After assembling the scaffold by arranging two kinds of eyelet holes, the sheet is connected to the column of the adjacent unit to cover the gap between the columns of the adjacent unit with the sheet.
Item 9. A method for spreading a disaster prevention safety sheet on a scaffold at a construction site according to any one of Items 8 to 8. 10. 10. The method for spreading a disaster prevention safety sheet on a scaffold at a construction site according to any one of items 1 to 9, wherein the disaster prevention safety sheet is a mesh sheet. About.

[0005]

The first feature of the present invention is that, instead of extending a disaster prevention safety sheet after constructing a scaffold, a unit in which a disaster prevention safety sheet is attached in advance to one surface of a scaffold unit constituting the scaffold and a sheet is arranged. By forming the unit and connecting the units in the height direction and the lateral direction to form an assembled scaffold, the disaster prevention safety sheet is spread over the entire scaffold.
In this way, it is possible to eliminate the need for an extension work on a high and narrow worktable.

[0006] A second feature of the present invention is that the seat is mounted with the unit inclined. Of course, the unit may be laid on the ground and a sheet may be attached to the surface opposite to the ground surface. When the unit to which the sheet is attached is raised and erected as described above, the sheet is extended. By the way, the lower end on the ground surface side of the column on the building site side of the unit is touched to the ground surface, the other end is lifted slightly upward, and a working space is formed between the ground surface side of the unit and the ground surface. ,
When a disaster prevention safety sheet is attached to the upper end of the support pipe on this surface, the sheet spreads without wrinkles due to its own weight, and attachment becomes easy.
Then, when the unit is raised, the disaster prevention safety sheet is extended on the opposite side of the building of the unit, so that the scaffolding work site can be covered if assembled as it is. If a sheet is arranged on the opposite side of the ground surface of the unit without using this extension method, there is a disadvantage that the unit must be turned 180 ° to make the sheet surface the opposite side of the building when assembling the scaffold. Is small, the rotation of the unit becomes troublesome.

A third feature of the present invention is that a sheet is temporarily attached to a unit in an inclined state, and the unit is raised and then completely attached. By temporarily mounting the unit, the sheet does not flutter due to wind pressure when the unit is raised, and since the unit is temporarily mounted, the sheet hangs down due to its own weight, bending and wrinkles disappear, and complete mounting in this state improves the appearance. Since the unit is not tall, mounting work is suddenly easy.

A fourth feature of the present invention is that the width of the disaster prevention safety sheet is limited to the length of the column of the adjacent unit, and the width of the seat is formed at the side end of the sheet with the eyelet hole connected to the column of the own unit and the column of the adjacent unit. That is, two kinds of eyelet holes to be connected are provided. After assembling the scaffold with the seats spread and arranged in one unit in this way, by connecting to the support of the adjacent unit, the gap between the units can be covered with the sheet, and the entire scaffold is covered with the sheet, so disaster prevention The effect is very good. The connection between the seat and the support pipe can be made by fixing a band or a string through an eyelet hole, or by using an appropriate fixing ring or the like.

As a disaster prevention safety sheet, a canvas or a film can be used, but a mesh sheet is most preferable because of a small amount of flutter caused by wind pressure. As a scaffold unit, a work table may be fixed to four ordinary columns, but a unit that can be folded and pivotably attached to the column with bolts and nuts on the column is assembled at the time of use, Convenient for transportation and storage.

[0010]

EXAMPLES Next, examples will be specifically described. FIG.
Indicates a scaffold unit, and 1 is a unit. Reference numeral 2 denotes a support, and reference numeral 3 denotes a work table. The struts can also be arranged in the horizontal direction, but especially if the lateral struts are provided above the struts of the unit arranged at the top of the scaffold, there is an advantage that the upper end of the seat can be connected to this strut as well. .

FIG. 2 shows a scaffold unit 1 with a support 2 on the ground surface side.
a is brought into contact with the ground surface, the other end is slightly lifted by a crane to form a work gap between the disaster prevention safety sheet 4 and the upper end of the lower support 2a by the connecting ring 5.

FIG. 3 shows the side end of the seat attached to the column 2a. Since the unit is installed at an angle, the seat is lowered by its own weight and no wrinkles are generated. With the lower end of the unit facing the building, the sheet is spread on the opposite side of the building. By combining the units with the seats extended in the height direction and the lateral direction in this manner, a scaffold with the disaster prevention safety sheets extended is completed. The sheet can be spread on the upper surface while the unit is maintained in an inclined state. In this case, wrinkles are likely to remain because the sheet's own weight is unlikely to be applied, and work cannot be performed because the sheet extending surface is on the building side, so that the unit must be rotated by 180 degrees. It is possible to lay the unit on the ground surface and spread the sheet on the top surface, but this is also inconvenient.
Therefore, the embodiment shown in FIGS. 2 and 3 is preferred.

FIG. 4 shows the gap between adjacent units covered with a sheet. The width of the sheet 4 is limited to the length of the column 2b of the adjacent unit, and the column 2 adjacent to the eyelet hole 6 connected to the column 2a of the own unit on one side surface.
The eyelet holes 7 connected to b are provided, and a string, a rope, a ring, or the like is inserted into each eyelet hole and connected to the support. Thus, the gap between the units is covered with the sheet, so that the disaster prevention effect is improved.

The scaffold unit used in the present invention may be a unit in which a support and a work table are fixed as shown in FIG.
As shown in (1), using a unit that pivotally connects the worktable to the support column and assembles and fixes it during use is convenient for transportation and storage. In FIG. 5, the work table 3 is pivotally attached to the column 2 and can be fixed from the folded state by bolts and nuts. The sheet stretching is the same.

[0015]

According to the present invention, there is no need to spread the sheet on the workbench at the top of the tall and narrow scaffold, and the unit on which the sheet is spread is assembled, so that the scaffold on which the disaster prevention safety sheet is quickly spread can be formed. Can be done. Further, the gap between adjacent units can be covered, so that the disaster prevention effect is large.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a scaffold unit.

FIG. 2 is an explanatory view of connecting the upper end of a disaster prevention safety sheet to a support column on a scaffold unit and extending the same.

FIG. 3 is an explanatory view showing a state where a disaster prevention safety sheet is connected to a scaffold unit and extended.

FIG. 4 is an explanatory view showing a state where a sheet is also connected to a column of an adjacent unit to cover a gap between the units.

FIG. 5 is an explanatory view showing how the folded unit is raised and assembled.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Unit 2 Post 2a Lower post 2b Adjacent unit post 3 Workbench 4 Disaster prevention safety sheet 5 Connecting ring 6 Eyelet hole 7 Eyelet hole for connecting adjacent unit post

Continuing from the front page (72) Inventor Kazuhiko Hashinoguchi 1-2-2 Ecchushima, Koto-ku, Tokyo Kawashi Machinery & Equipment Co., Ltd. Examiner Hiroshi Furuyano (58) Field surveyed (Int.Cl. ⁷ , DB name) ) E04G 21/32 E04G 1/26

Claims (10)

(57) [Claims] 1. A scaffold unit comprising a support pipe arranged at least at four corners, and a workbench installed on the support pillar, laying horizontally, and an upper end of a disaster prevention safety sheet on an upper end of the support pipe on the same plane. Attach the side edges of the disaster prevention safety sheet at several places between the upper and lower ends of the support pipe to form a scaffolding unit on which the disaster prevention safety sheet is arranged. A method of spreading a disaster prevention safety sheet on a scaffold at a construction site by fixing it. 2. A bottom surface side lower end of a support pipe on a building site side of a horizontally laid unit is brought into contact with the ground surface, and an upper end is slightly lifted from the ground surface so as to be in an inclined state and between the scaffold unit and the ground surface. The method according to claim 1, wherein a work gap is formed, and a disaster prevention safety sheet is attached to a support pipe on the same side of the unit in this state. 3. The safety sheet according to claim 2, wherein the safety sheet is attached to a pillar pipe on the ground surface side of the scaffold unit in an inclined state. how to. 4. The method according to claim 1, wherein the side ends of the disaster prevention safety sheet are temporarily attached to several places of the support pipe, the unit is raised, and then completely attached. A method of spreading disaster prevention safety sheets on scaffolds at construction sites. 5. The scaffolding unit according to claim 1, wherein the scaffolding units provided with the disaster prevention safety sheets are arranged side by side and connected to each other, and further stacked in the height direction and fixed to each other. 5. A method for spreading a disaster prevention safety sheet on a scaffold at a construction site according to any one of the above items 4 to 4. 6. A disaster prevention safety sheet, wherein a connection ring is provided at an upper end of the disaster prevention safety sheet, and the ring is inserted into an upper end of a support pipe to attach the upper end of the disaster prevention safety sheet to the support pipe. Item 6. A method for spreading a disaster prevention safety sheet on a scaffold at a construction site according to any one of Items 1 to 5. 7. The mounting method according to claim 1, wherein the mounting of the support pipes and the side end portions of the disaster prevention safety sheet is performed by using an eyelet provided in the seat and a fixture for fixing the seat to the support pipe through the holes. The method for spreading a disaster prevention safety sheet on a scaffold at a construction site described in paragraph 1. 8. The method according to claim 7, wherein the fixing device is selected from a band, a string, a connecting ring, and the like. 9. The width of a disaster prevention safety sheet provided in an adjacent unit is set to be as long as the width of the support of the adjacent unit, and the width of the side of the sheet is adjusted to the width of the eyelet connected to the support of the unit and the support of the adjacent unit. After assembling the scaffold by arranging two types of eyelet holes for eyelet holes, the sheet is connected to the pillars of the adjacent unit to cover the gap between the pillars of the adjacent unit with the sheet. A method for spreading a disaster prevention safety sheet on a scaffold at a construction site according to any one of claims 1 to 8. 10. The method for spreading a disaster prevention safety sheet on a scaffold at a construction site according to any one of claims 1 to 9, wherein the disaster prevention safety sheet is a mesh sheet.