JPH083275B2 - How to install a protective net for temporary scaffolding - 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 of tensioning a protective net on a temporary scaffold to be assembled along the wall of an existing building when repairing the wall.

[0002]

2. Description of the Related Art Conventionally, when a protective net is stretched, the temporary scaffold is assembled from the lower layer to the uppermost layer along the wall surface of the building, and then the protective net is stretched from the outer side of the temporary scaffold to the scaffold. .

[0003]

By the way, in the case where the conventional protective net is stretched as described above, when assembling the temporary scaffold before the protective net is stretched, tools and scaffold components used for the assembly are used. However, there was a problem that it would fall to the ground from the outside of the temporary scaffold without the net, which could cause unexpected injuries to workers and passers-by on the ground.

Therefore, the present invention solves the above-mentioned conventional problems and prevents the tools, scaffolding components, etc. used for the assembly from falling onto the ground during the assembly of the temporary scaffolding, thus ensuring work safety. It is an object of the present invention to provide a method for tensioning a protective net for temporary scaffolds that can achieve the above.

[0005]

[0006]

In order to achieve the above-mentioned object, the invention of claim 1 assembles one or several layers of temporary scaffold, and arranges a protective net from outside or above the outside of the temporary scaffold, The protective net is first connected to the temporary scaffold and stretched, and then the carrying metal fitting is attached to the temporary scaffold so as to project outward from the temporary scaffold, and a predetermined space is provided between the temporary scaffold and the protective net above the temporary scaffold. After assembling the temporary scaffold, when the temporary scaffold reaches the uppermost layer, the carrying metal fitting is removed, and a protective net is connected to the temporary scaffold above the temporary scaffold and stretched. It is characterized by

According to a second aspect of the present invention, the temporary scaffold is assembled in one layer or several layers, a protective net is arranged from above or below the outside of the temporary scaffold, and the protective net is first connected to the temporary scaffold and stretched. The temporary scaffolding is further installed, and then the carrying metal fitting is projected outward from the temporary scaffolding to be attached so that a predetermined space is formed between the temporary scaffolding and the protective net above the temporary scaffolding. Assemble one or several layers of temporary scaffolding on top of the above, remove the carrying bracket after assembly, tie the protective net to the assembled temporary scaffold and stretch it, and in the same manner, install the carrying bracket to a predetermined position. It is characterized in that the formation of the space, the assembling of the temporary scaffold, the removal of the carrying metal fitting, and the connection and tensioning of the protective net are sequentially repeated up to the uppermost temporary scaffold.

[0008]

In any of the first and second aspects of the invention, at the stage of assembling the temporary scaffold from the lower layer to the uppermost layer, that is, in parallel with the assembly of the temporary scaffold, the protective net is provided from the outside of the temporary scaffold to the temporary scaffold. Since the cables are stretched, tools and scaffold components used for the assembly are prevented from falling by the protective net when the temporary scaffold is assembled.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows an embodiment of the present invention, which is a side view of a temporary scaffold while a protective net is being stretched, FIG. 2 is a plan view of a part thereof, and FIG. 3 is a part of a main part thereof. It is an abbreviated side view.
In these figures, 1 is a building, 2 is a temporary scaffolding, 3 is a protective net, 4 is a wall joint fitting, 5 is a carrying fitting, and 6 is a universal projecting beam.

A method of assembling the temporary scaffold 2 and a method of tensioning the protective net 3 on the scaffold according to this embodiment will be described. First, the temporary scaffold 2 along the wall surface of the building 1 to be repaired
Assemble 3 layers. At this time, a predetermined space X (for example, 25 cm or less) is set between the scaffold 2 and the wall surface of the building 1. The scaffold 2 is firmly fixed by a wall joint metal fitting 4 which is driven into the wall surface of the building 1. In this example, the scaffold 2 is assembled in three layers, but it may be one layer or several layers such as 2,4 layers.

Thereafter, a plurality of flexible projecting beams 6 are set on the head part 7 of the building 1 at intervals as shown in FIG.
Using each of these projecting beams 6, the wire rope 8 is lowered to the ground as shown in FIG. 4, and the lower end portion of the wire rope 8 is fastened to the scaffolding root-engaging pipe 9 (FIG. 3).

Next, a mesh sheet 11 made of polyethylene is placed between the projecting beams 6 from the roof of the building 1 and lowered onto the ground, and the lower end portion of the sheet is similarly fastened to the scaffolding root-entangling pipe 9. When the mesh chute 11 is lowered from the top, it is easily affected by wind and the like. In such a case, the mesh sheet 11 may be pulled up from the ground. Then, up to the height at which the scaffold 2 is assembled, that is, up to three layers of scaffolds 2 in this example, each adjacent mesh sheet 11
As shown in FIG. 5, the mesh sheet 11 and the wire rope 8 are connected with a string 13 or the like and fastened to the scaffold 2. A mesh sheet that has been tied with the above-mentioned string 13 etc.
11 and the wire rope 8 constitute the protective net 3.

Next, as shown in FIG. 3, the carrying member 5 is attached to the scaffold 2 of the third layer assembled previously so as to protrude outside the scaffold 2 by a predetermined length, and the scaffold 2 and the protective net 3 are attached. A predetermined space Y (for example, about 20 to 30 cm) is formed above the space. Then, in the state of being carried by the carrying metal fitting 5, the mesh sheet 11 and the mesh sheet 1 are carried out to the highest possible height from the work floor 15 of the scaffolding 2 as described above.
Tie the wire rope 1 and the wire rope 8 with the string 13 etc. After that, scaffold 2 is further assembled in a few layers inside thereof.

After that, by the same procedure, the binding of both mesh sheets 11 and the wire rope 8 by the string 13 and the like to the vicinity of the uppermost scaffold 2 and the assembly of the scaffold 2 are alternately performed.

Then, when the head portion 7 is reached, the projecting beam 6 set here is removed and the scaffold 2 of the uppermost layer is assembled.

After the top scaffold 2 is assembled,
The carrying metal fitting 5 is removed, and the protective net 3 above the metal fitting is brought into close contact with the scaffold 2 and fastened. After that, the tension of the net 3 is adjusted as a whole to finish the work. FIG. 6 shows the state.

This embodiment is only a preferable example, and the detailed procedure, for example, the mesh sheet 11 and the wire rope 8 are made into a net 3 in advance, and the net 3 is arranged and fastened outside the temporary scaffold 2. Etc. can be variously modified without changing the gist of the invention described in the claims.

[0018]

Since the inventions of claims 1 and 2 are as described above, at the time of assembling the temporary scaffold, it is possible to prevent the tools and scaffolding components used for the assembly from falling to the ground by the protective net, There is an excellent effect that work safety can be achieved.

[Brief description of drawings]

FIG. 1 is a side view showing an embodiment of the present invention while a protective net is being stretched on a temporary scaffold.

FIG. 2 is a plan view of a part of the above.

FIG. 3 is a side view with a part of a main part omitted.

FIG. 4 is a partial front view showing an example of a work of binding a wire rope and a mesh sheet.

5 is a partial cross-sectional view of FIG.

FIG. 6 is a side view showing a state in which the assembly of the temporary scaffold and the tensioning of the protective net on the scaffold have been completed.

[Explanation of symbols]

 1 Building 2 Temporary scaffolding 3 Protective net 5 Carrying metal fittings 6 Projecting beam 7 Kasagi part 8 Wire rope 9 Scaffolding root-like pipe 11 Mesh sheet 13 String 15 Working floor

Claims (2)

[Claims] 1. A method of stretching a protective net on a temporary scaffold to be assembled along a wall surface of a building, wherein one or several layers of the temporary scaffold are assembled and the protective net is arranged from above or below the outside of the temporary scaffold. First, the protective net is connected to the temporary scaffold and stretched, and then the carrying metal fitting is attached to the temporary scaffold by projecting outward from the temporary scaffold and a predetermined distance between the temporary scaffold and the protective net. After constructing a space, the temporary scaffolding is assembled, and when the temporary scaffold reaches the uppermost layer, the carrying metal fittings are removed and a protective net is connected to the temporary scaffold above the temporary scaffold and stretched. A method for tensioning a protective net for temporary scaffolds, characterized by: 2. A method of tensioning a protective net on a temporary scaffold to be assembled along a wall surface of a building, wherein one or several layers of the temporary scaffold are assembled and the protective net is arranged from above or below the outside of the temporary scaffold. First, the protective net is first connected to the temporary scaffold and stretched, and then the carrying metal fitting is projected outward from the temporary scaffold to be attached so that the space between the temporary scaffold and the protective net is predetermined above the temporary scaffold. After a space is formed, one or several layers of temporary scaffolding are assembled on the temporary scaffolding, the carrying metal fittings are removed after the assembly, and the protective net is connected to the assembled temporary scaffolding and stretched. In the same way, a predetermined space is formed by attaching the carrying metal fittings and the temporary scaffold is assembled, and the removal of the carrying metal fitting and the connection of the protective net are tensioned up to the temporary scaffold at the top layer. A method for tensioning a protective net for temporary scaffolds characterized by repeating.