JPH01146058A - Framework scaffold - Google Patents

Abstract

PURPOSE: To maintain the strength of a scaffolding while improving the safety and reducing labor and time by arranging H-type standards in parallel, building up the standards in a plurality of stages to lay scaffolding boards between horizontal posts, and fitting side frames to both side face sides of each stage. CONSTITUTION: H-type standards 1 with horizontal members 11 disposed between the nearly middle parts of each pair of upright-posts 10, 10, are arranged in parallel and built up in a plurality of stages, and a scaffolding board 2 is laid between the adjacent horizontal ports 11, 11 of each stage. A rectangular side frame body 30 with an outer width W2 almost coinciding with inside measurement W between the vertical posts 10, 10 is fitted with a rectangular net of almost the same size as the side frame body 30 to constitute a side frame 3 which is a reinforcing member serving also as a handrail. The side frame bodies 3 on the outer side face side of each stage are fitted between the vertical posts 10, 10 on the inner side face side so as to cover the whole scaffolding with the nets 31 to constitute a prefabricated scaffolding. The strength of the scaffolding is therefore maintained, and protection against fallen objects can be secured from the beginning of building up while heightening the safety of workers.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a framework scaffold that is temporarily installed along the outer wall surface of a building, etc., and in particular allows for the removal of strings in a rational, safe and easy manner. Regarding framework scaffolding.

[Conventional technology]

As this type of framework scaffold, the one shown in Fig. 7 is currently in general use. In other words, the one in the picture is a torii-shaped building frame 9.
A plurality of 0's are arranged side by side at predetermined intervals, a required number are connected in the vertical direction, and cross braces 91 are installed between adjacent building frames. Scaffolding boards 2 are stretched between the horizontal areas 90a and 90a of the adjacent building frames, and the work floor A
, , A8... are secured. Supports 92 are erected on the uppermost building frame 90, and handrails 93 are set.

[Problem that the invention seeks to solve]

However, the above-mentioned known framework scaffolds have the following problems.

- During assembly or disassembly (reassembly), workers standing on the scaffolding boards 2 at each stage are not provided with handrails to ensure their safety, and are forced to perform extremely dangerous work.

■ Framed scaffolding usually has a curing frame (metal mesh with frame) or curing net (mesh sheet) placed on its outer surface for the purpose of curing fallen objects.

Such curing is carried out after all stages of scaffolding have been erected, but
In reality, there is a risk of falling object accidents occurring even during assembly, and this cannot be said to be a sufficient countermeasure.

Furthermore, both the curing frame and the net are troublesome to install and require considerable effort. The length of the net is generally 5100n.
A single sheet of paper is used to cover three levels of the building frame, but attaching it to the building frame is a cumbersome process that involves tying it to the building site with a string. The curing frame has a structure in which curing clamps are attached to two places, the building frame and the building site, and the holes in the curing frame are fitted into the joints provided on these clamps, which requires time-consuming work to install. becomes.

Furthermore, if the net is not securely fixed to the building site, it will flap in the wind and become a source of noise. In addition, even if only one part is damaged, the whole large piece needs to be replaced, which is not only disadvantageous in terms of cost, but the large size of each piece also makes it difficult to handle when installing, removing, storing, cleaning, etc. I have to.

The present invention aims to provide a framework scaffold that solves the problems of the conventional scaffolds described above.

[Means for solving problems]

As shown in FIG. 1, the framework scaffolding of the present invention has a pair of
H-shaped building frame l with horizontal land 11 arranged between the approximately middle parts of 0 and 10
are arranged in parallel and assembled into multiple tiers, and the scaffolding boards 2 are spanned between the adjacent horizontal lots 11 and 11 of each tier, while the adjacent building lots 10, 10 on the outer side and inner side of each tier
A side frame is installed in between.

The outer side frame 3 attached to the upper and lower sides of the scaffold board 2 level has a rectangular and rigid side frame main body 30, as shown in detail in FIGS. 3 and 4.
The side frame body 30 is also rectangular in shape and consists of a combination of a side frame body 30 and a net 31 of approximately the same size, and the side frame body 30 has an outer width Wt dimension that approximately matches the inner width W5 dimension between the adjacent building lots 10 and 10. , the net 31 is supported by the connecting pieces 302 attached near the four corners of the side frame body 30 so that it fits between the adjacent buildings 10 and 10 without any gaps, and the net 31 is attached to the side frame body 30.
It is removably attached to the side frame main body 30 by means of engagement means 32 with a frame 31 attached to the side frame body 30.

[For production]

In the framework scaffold of the present invention, the side frame 3 provided with the net 31 is built over the entire outer surface of the scaffold.

This side frame 3 provides the scaffold with strength against horizontal forces due to its interframe nature, that is, it has the function of replacing braces, and in this case, the net 31 closes the entire opening on the outer side of the scaffold and It will fulfill the function of curing things.

The side frame 3 is installed so that it completely fits between the adjacent buildings 10 and 10, and the side frame main body 30 is attached to the inner wall W between the adjacent buildings.
Since it has an outer width Wt that substantially matches the width Wt, there is no gap between the building site and the building site, and together with the provision of the net 31, reliable curing is achieved.

In addition, the side frames 3 are stacked at each level in parallel with the assembling of the building frame 1 when the scaffolding is assembled, and this makes it possible to protect fallen objects even when the scaffolding is being erected. Moreover, the implementation of falling object protection measures is completed at the same time the scaffolding is erected, so there is no need to carry out protection measures as a separate task after the scaffolding is erected, unlike with conventional protection nets. The required effort and time can be saved.

Not only that, the frame body 3 itself becomes a handrail, and the H-shaped building frame l
The safety of workers will also be ensured during the scaffolding process.

Furthermore, since each net 31 is small in size, it does not flap or make noise unlike a curing net, and is configured to be removable from the side frame body 30, so that it can be removed from the main body 30 during cleaning. All you have to do is remove it. Furthermore, during transportation, storage, etc., it can be handled while attached to the side frame body, and is not bulky and easy to handle.

(Example〕 FIG. 1 above shows an embodiment of the present invention.

This scaffolding has multiple tiers of work floors A1゜A2...
The basic components of the 0 work floor unit υ, which is composed of the work floor unit υ1 that forms That is. First, each configuration will be explained element by element.

O building frame l Figure 2 shows a front view.

According to the figure, building frame l is an H-shaped frame, and a pair of building sites i
o, io, a horizontal lot 11 that connects the reconstruction site at the upper and lower division points, and an inverted U-shaped reinforcing material 12 placed below the horizontal lot 11 between both building lots 10 and 10. is configured. All structural members are round steel tubes.

Connecting pins 13 for connecting the building frames to each other are attached to the upper ends of both building sites io and to. Also, construction site 10.
10, engagement pins 15 with bar-type retaining pieces 150 are provided at a total of four locations near the upper and lower ends, directly above and directly below the mounting position of the horizontal strip 11. The arm rotor and the engaging pins 15 for locking the side frame are all shaped so that they do not protrude inside the frame itself. A through hole 100 extending in the longitudinal direction of the horizontal lot is provided in a portion directly below the attachment position of the horizontal lot 11 on each building lot IO. This through hole 100 is used when installing scaffolding equipment such as morning glory.

The reinforcing material 12 extending between the two building lots 10 and 10 is connected to the horizontal lot 11 by a connecting play 120 at its center. The connection plate 120 has a through hole 120a.
This can be used to attach tie rods for support and reinforcement when attaching morning glories or the like using the through hole 100.

In addition, as for the building frame, less than 900 f1, which is a "simple frame", is sufficient for temporary construction i'i buildings in general. The height Hl is set at 1,700 to 2,000 ms based on the height of the person and from the standpoint of securing the necessary space for work.
The degree is appropriate.

○ Scaffolding board 2 Scaffolding board 2 is the one that is normally used.
1 is provided with an engaging claw 20.20.

○Side frame 3 Its structure is shown in FIGS. 3 and 4.

The side frame 3 in Fig. 3 is (a) entirely rectangular as shown in the figure;
It consists of a combination of a side frame body 30 and a net 31. The side frame main body 30 is made of a round pipe that goes around the circumference, and includes a reinforcing member 301 disposed inside the side frame main body 30, and connecting pieces 302 provided near the four corners of the side frame main body 30.

The side frame main body 30 is composed of a round pipe as described above, and the engagement means 3 for attaching the net 31 is provided on the inner side of the side frame main body 30.
2... is provided. (b) The engaging means 32 shown enlarged in the figure is a hook attached separately to the side frame main body 30, and (c) The engaging means 32 shown enlarged in the figure is attached to the side frame main body 30. A slit is formed in the side frame body 30, and the periphery thereof is fitted so that the hook portion does not protrude outside the outer circumferential surface of the side frame main body 30. Each of the engaging means 32 is formed inside the frame itself so as to be bent toward the outer periphery.

The dimensions of the side frame body 30 are such that the outer width W2 is approximately equal to the inner dimension W between adjacent building lots (hereinafter simply referred to as adjacent building lots) 10. Match. The height H2 is half the height Hl of the building site IO by T degrees.

The reinforcing material 301 forms a water-like shape within the side frame body 30 and provides high rigidity to the side frame body 30. Needless to say, the method of taking the reinforcing material 301 is not limited to this, and various modifications are possible.

Some of the variations are shown in Figure 5.

The joining pieces 302 are provided near the upper and lower ends of both paper members of the side frame main body 30. With this connecting piece 302, the swinging body 30 is attached so as to fit between the adjacent buildings 10 and 10.

The net 31 is fixed by passing a string through a hole 311b made in a peripheral edge 311a made of cloth and attaching it to the frame 310. In addition to this, there are other ways to install Neso l-311.
Possible methods include passing a string through the hole 3iib and attaching it to the side frame body 30, or fixing the net 31 to a rectangular frame and attaching this frame to the side frame body 3o.

In the side frame 3 shown in FIG. 4, the side frame main body 30 is made of an angle material, and engagement means 32 for attaching a net 31 are provided on the inner surface of the vertical flange portion of the angle material.

As the engaging means 32..., similar to the side frame 3 in FIG.
A hook is attached separately to the side frame main body 30 (same figure (b))
), or one in which a part of the side frame main body 30 protrudes inward (see (c) in the same figure).

According to this side frame 3, the net 31 is housed in a space surrounded by the vertical flange portion of the angle member constituting the side frame main body 30 and the flat flange portion bent from the vertical flange portion toward the inside of the frame.

In addition to attaching the net 31 directly to the engaging means 32, the net 31 may be temporarily fixed to a rectangular frame, and this frame may be attached to the side frame body 30.

The other configurations are the same as the side frame 3 in FIG. 3, so detailed explanation will be omitted.

○ It is generally used as a side frame handrail and strength member on the inner side (Ili 1 side), and is
A handrail frame 35 as shown in Figure (A) or a combination of a handrail member 36 and diagonal member 37 as shown in Figure (B) is used.

The configuration of each element is as described above, and next, the arrangement and combination state of these elements will be explained.

First, the required number of building frames 1 are arranged in parallel at a predetermined interval 1, and the required number of stages are also added in the vertical direction. A jack base 8 is attached to the bottom end of the lowest building frame. The arrangement spacing l is 182Ln, 1524mm, 1219m, 914fi for inch size.
It is set to a certain degree.

The connection in the vertical direction is made using the connection pin 1 at the upper end of the building site lO.
3, locking is performed by arm lock or the like.

The scaffolding board 2 is connected and spanned between the adjacent horizontal areas 11 and 11 of each tier of the building frame l, and provides working floors A+ = At for the number of assembled tiers of the building frame. is forming.

The engagement with the horizontal ground 11 is done using the engagement pieces 20.20 at both ends of the scaffolding board 2.
by.

The side frame 3 is provided between each adjacent building site 10 and 10 on the outer surface side in each stage of the building frame 1 .

The height H2 of the side frame 3 is approximately half the height Hl of the building frame, and one side frame 3 is erected on each level above and below the work floor A level as a boundary. ing. Although a portion is omitted in FIG. 1 for convenience of illustration, the side frame 3 is provided so as to cover the entire outer surface.

The side frame 3 is fixed by fitting the four connecting pieces 302 of the side frame into the engagement pins 15 with retaining pieces of the building lots 10, 10.

In the above-mentioned installed state, each side frame 3 is attached to the building area 10 on both sides.
It is built by being fitted in between 10 buildings, and there is almost no gap between it and each building site.

Although the side frame on the inner side (L1 body side) is not shown in Fig. 1, its height is approximately half of the height Hl of the building frame.
For each stage of the building frame l..., l units are built above the work floor A level.

In the illustrated example, diagonal members 5 are attached to the lower side of the lowermost work floor A1 instead of the side frames.

In the scaffold configured as described above, the side frames 3 arranged at each stage of the work floor unit υ1 serve to strengthen the own stage in the horizontal direction, and as a result, the whole becomes solid.

Moreover, each side frame 3 fits between adjacent building lots 10.10, and substantially does not create a gap between each side frame 3 and each building lot 10.60. Therefore, the net 31 provided on the side frame will surely protect the fallen objects.

Next, the above-mentioned scaffolding is assembled as follows. First, the lowest building frame l of the work floor unit U1 is installed, and the diagonal members 5 are set on the lower side between each of the building frames. At the same time, cross the scaffolding board 2 between the adjacent horizontal lots ii and tt. After doing this, go up on the scaffolding board 2 of the unit υ1 and install the outer side frame 3 and the inner side side frame on the upper side of the bottom row. Install.

Once the bottom tier is completed in this way, the second tier building frame 1 is placed on top of this.
..., attach the lower side frame 3 of the second stage, and hang the scaffold board 2. In this manner, the work units υ1 are assembled step by step in parallel from the bottom. When dismantling, follow the exact opposite procedure and work your way down from the top.

During such assembly and disassembly work, the worker stands on the scaffolding board 2 for each tier and attaches the upper outer side frame 3 and inner side frame to the tiered frame l. -■ Building frame directly above
The process proceeds by adding the lower outer side frame 3 and the scaffolding board 2 to the construction frame in order, but in this case, the work after ■ always attaches the outer side to the step being worked on. The work is done safely with side frames on both the side and inner sides.

〔Effect of the invention〕

The framework scaffold of the present invention explained above has the following characteristics.
It has advantages.

○ The side frame 3 on the outer surface side incorporated into the scaffold resists horizontal force due to its interframe nature, and the entire scaffold has high strength.

○ The side frame 3 is also built so that it fits between the adjacent buildings 10, 10 without any gaps, and the net 31 provided thereon covers the entire outer surface of the scaffold without any gaps, thereby ensuring the protection of fallen objects. It turns out.

○ And since the side frames 3 are set for each tier in parallel with the erection of the building frame when the scaffolding is being erected, it functions effectively as a countermeasure against falling objects during the scaffolding process as well. In addition, it is reasonable to complete measures to protect the entire structure from falling objects at the same time as the scaffolding is erected, and the effort and time required for temporary scaffolding can be greatly reduced.

Furthermore, in conjunction with the adoption of the H-shaped building frame 1, the side frames 3 serve as an effective means of protecting the safety of workers during scaffolding.

Additionally, since each net 31 is small in size, it does not flap around or make noise unlike conventional curing nets, and is also removable from the side frame body 30. When cleaning, it is easy to remove it from the main body 30, and when carrying and storing it, it can be handled while attached to the main body 30, making it less bulky and easier to handle.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing a framework scaffolding according to an embodiment of the present invention, FIG. 2 is a front view showing a building frame used for the same framework scaffolding,
Figures 3 (A) and 4 (A) are exploded perspective views showing the side frame on the outer side, both figures (B) and (C) are partial detailed views of the side frame, and Figure 5 is the same side. A schematic diagram showing variations in how to take reinforcing materials for the frame, Figures 6 (a) and (b) are front views showing the side frames on the inner side, and Figure 7 is a schematic explanatory diagram showing a conventional frame scaffold. . Circular, l: building frame, 2: scaffolding board, 3: side frame. Figure 2 Figure 6 (A) Figure 5 Figure 7121

Claims (1)

[Claims] (1) H-shaped building frames (1) with a horizontal lot (11) arranged between a pair of building sites (10) and (10) are arranged in parallel and assembled in multiple stages, each of which Land adjacent to the step (11
), (11), while the scaffolding board (2) is installed between the adjacent buildings (10), (1) on the outside and inside sides of each step.
0) A side frame is attached between them, and the side frame (3) on the outer surface side attached to the upper and lower sides of the scaffold board (2) level is the same as the side frame main body (30) which has a rectangular shape and has rigidity. A square net (31) that is approximately the same size as the side frame body (30).
), the side frame main body (30) has an outer width (W_2) dimension that substantially matches the inner width (W_1) dimension between the adjacent building lots (10), (10), and the side frame main body ( The net (31) is supported by the connecting pieces (302) attached near the four corners of the side frame body (30) so that it fits between the adjacent building lots (10), (10) without any gaps. ) A frame scaffolding characterized in that it is removably attached to a side frame body (30) by means of engagement (32) with a net (31) attached to the frame.