JPH01146057A - Side frame for framework scaffold - Google Patents

Abstract

PURPOSE: To maintain the strength of a scaffolding while improving safety and reducing labor and time by composing a side frame of a rectangular side frame body and a rectangular net of almost the same size as the side frame body, and fitting the side frame to the outer side face side simultaneously with building up standards. CONSTITUTION: A side frame body 30 comprising an outer frame body 300 provided with tie-in pieces 32 near four corners, and internal reinforcing members 301, is made of round pipes with a width W2 almost corresponding to the layout space 1 of standards 1. A net 31 of almost the same size as the side frame body 30 is fixed to the side frame body 30 by hooking holes 311b of a peripheral edge part 311a of the net 31 on engaging means 32 of the side frame body 30 to constitute a side frame 3. The side frame 3 is fitted between the adjacent upright posts 10, 10 on the outer side face side of the standards 1 arranged in parallel, by the engaging pins of the standards 1 and the tie-in pieces 302 of the side frame 3. Strength to horizontal force is therefore maintained, and protection against fallen objects can be secured from the beginning of building up the standards 1 while heightening the safety of workers and reducing labor and time.

Description

[Detailed Description of the Invention] [Industrial Application Field] This invention is used for a framework scaffold that is temporarily constructed along the outer wall surface of a building, etc., and functions as a strength member and handrail in place of braces, and prevents falling objects. This relates to a side frame that also has a curing function.

[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 spanned between the horizontal areas 903 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 attached.

[Problem that the invention seeks to solve]

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

■ During the assembly or disassembly (&l payment) work,
There are no handrails to ensure safety for workers standing on the scaffolding boards 2 of each step, forcing them to perform extremely dangerous work.

■ Framed scaffolding usually has a curing frame (metal mesh with frame) or a curing 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, installation of both the curing frame and the net is troublesome and requires considerable effort. The net used is -m with a length of 5100n, and is designed to cover three levels of the building frame with one piece, but attaching it to the building frame requires the hassle of tying it to the building site with a string. It is something. Regarding the curing frame, the building frame,
The structure is such that curing clamps are installed at two locations on the building site, and the holes in the curing frame are fitted into the joints provided on these clamps.
After all, its installation requires time-consuming work.

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 side frame of the present invention is a scaffolding component for solving these problems of conventional scaffolding.

[Means for solving problems]

As shown in FIGS. 1 and 2, the present invention is based on a combination of a side frame main body 30 which is basically a rectangular rigid frame and a net 31 which is also rectangular and has approximately the same size as the side frame main body 30. The side frame main body 30 has a width W8 that approximately corresponds to the arrangement interval e of the building frames L arranged in parallel, and the side frame body 30 has a width W8 that approximately corresponds to the arrangement interval e of the building frames L arranged in parallel.
The side frame body 30 is further provided with an engaging means 32 for engaging with the net 31, and this engaging means engages the net 31. The gist of the present invention is a side frame for a framed scaffold, which is characterized in that a side frame is detachably attached to the side frame.

[For production]

As shown in FIG. 4, the side frame 3 of the present invention is installed entirely between adjacent building lots 10 on the outer side of the building frames 1 arranged in parallel.

In this installed state, the side frame 3 provides the scaffold with strength against horizontal forces by its own frame rigidity, that is, it has a function in place of braces. This serves as a protection against falling objects.

The side frame 3 equipped with this net is set in parallel with the assembly of the building frame 1 at each stage of stacking when the scaffolding is assembled, and this makes it possible to protect fallen objects even during the assembly of the scaffolding. becomes. 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.

In addition, the frame 30 itself serves as a handrail, ensuring the safety of workers during the process of assembling the scaffolding.

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. It only needs to be removed, and it can be handled while attached to the side frame body during transportation, storage, etc., and is not bulky and easy to handle.

〔Example〕

1 and 2 show an embodiment of the present invention, (A) is a perspective view illustrating the overall structure, and (B) and (C) are partially enlarged views.

According to FIG. 1, the side frame 3 has a rectangular shape as a whole, and the side frame main body 30
and net 31.

The side frame main body 30 that goes around the periphery includes a reinforcing member 301 disposed inside thereof, and joining pieces 302 provided near the four corners of the outer frame body 300.

This side frame main body 30 is composed of a round pipe, and on its inner surface, engagement means 32 for attaching the net 31 are 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 W1 between adjacent building lots (hereinafter simply referred to as adjacent building lots) (10, 10) of the building frames l... which are arranged in parallel as described below. are in agreement. The height H8 is approximately half the height H3 of the building lot IO.

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 3.

The connecting pieces 302 are provided near the upper and lower ends of the front vertical member of the side frame main body 30. This connecting piece 302 allows the side frame body 3 to
0 is installed so that it fits between the adjacent buildings 10 and 10.

The net 31 can be fixed to the side frame main body 30 or removed by hooking a hole 311b formed in a peripheral edge 311a formed with a cloth onto the engaging means 32. Other ways to attach the net 31 include passing a string through the hole 311b and attaching it to the side frame body 30;
A possible method is to temporarily fix the frame to a rectangular frame and then attach this frame to the side frame main body 30.

In the side frame 3 shown in FIG. 2, 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 accommodated 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.

The net 31 may be attached directly to the engaging means 32, or the net 31 may be temporarily fixed to a rectangular frame, and then this frame may be attached to the side frame body 30.

The other configurations are the same as the side frame 3 of FIG. 1, so detailed explanation will be omitted.

Next, a framework scaffold according to an example of the use of side frames having the above structure will be explained with reference to FIG. 4.

This scaffolding as a whole has multiple tiers of work floors A1゜A...
・It consists of a work floor unit U1 that forms a. The basic components of the work floor unit υ1 are the building frame l, the scaffold board 2, the side frame 3 on the outside side, and the side frame on the inside side (11 body side). Since the side frame 3 has already been explained, the configuration of each other than the side frame 3 will be explained.

0 frame l FIG. 5 shows a front view.

According to the figure, building frame l is an H-shaped frame, and a pair of building lots 1
0.10, a horizontal lot ll that connects both building lots 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. consists of parts. All structural members are round steel tubes.

A connecting pin 13 for connecting the building frames to each other is attached to the upper ends of both building lots 10.10. Also, the building site is 10,
10, engagement pins 15 with spring-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 lock and the engagement pins 15 for locking the side frame are all shaped to 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 to connect between buildings, to install scaffolding equipment such as morning glory, etc.

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

In addition, as for the building frame, if the temporary construction target is a building in general, less than 900R, which is a "simple frame", is sufficient. Regarding the height H, from the viewpoint of securing the necessary space for work based on the height of a person, a height of about 1,700 to 2,000 mm is appropriate.

O Scaffolding board 2 Scaffolding board 2 is the one normally used, and there are building frame horizontal areas 1 on both ends.
1 is provided with an engaging claw 20.20.

It is generally used as a side frame handrail and strength member on the O inner side (Ilii body side).
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.

Next, the arrangement if&l1 of the constituent 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 interval l is set to about 1829 m, 152481.1219 m, or 914 mm in the case of inch size.

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, 11 of each stage of such a building frame l..., and is connected to and spans the working floors A, At... is formed.

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 on the outer surface side (opposite the body side) in each stage of the building frame l.... The height H2 of the side frame 3 is half the height H3 of the building frame, and one side frame 3 is built above and below the work floor A level at each stage. Although some parts are 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 sites io, to.

In the above-mentioned installed state, each side frame 3 has a building site io on both sides,
It is built so that it fits between the two buildings, and there is almost no gap between it and each building site.

Although the side frame on the inner side (W body side) is not shown in Fig. 1, its height is half of the height Hl of the building frame.
One unit will be built above the A level of the work floor for each stage.

In the illustrated example, diagonal members 5 are attached to the lower side of the lowermost work floor A in place of the side frames.

In the scaffold configured as described above, the side frame 3 in the assembled state serves to horizontally solidify each stage of the work floor unit υ1, and as a result, the whole becomes solid.

In addition, the side frame 3 is installed between each adjacent building site 10, 10,
The net 31 as a whole completely covers the outer surface of the scaffold, thereby achieving protection against fallen objects.

Next, the scaffolding is removed as described below.

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, and the scaffolding board 2 is stretched between the adjacent horizontal lots 11 and 11. After doing this, the user goes up onto the scaffolding board 2 of the unit U1 and attaches the outer side frame 3 and the inner side frame on the lowermost upper side.

Once the bottom tier is completed in this way, the building frame for the second tier is placed above it.
Add ... and remove the second tier lower side frame 3.

Attach the scaffold board 2. In this manner, the work floor unit U1 is assembled step by step from the bottom in parallel, and when dismantled, the process is completely reversed and the work proceeds sequentially from the top step downward.

Such assembly and disassembly work is carried out by a worker standing on the scaffolding board 2 for each step and attaching the upper outer side frame 3 and the inner side side frame to the relevant step frame l→ ■Directly above building frame l
The process proceeds by installing the lower outer side frame 3 and the scaffolding board 2 on 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 will be carried out with the side frames that act as handrails already present on both the inner surfaces, allowing for safer work.

Although the case where the H-shaped building frame l is used has been described above, the application of the side frame of the present invention is not limited to this, but can also be applied to scaffolds using a general torii-shaped building frame.

〔Effect of the invention〕

The side frame of the present invention described above has the following features and advantages.

When incorporated into a scaffold, it resists horizontal forces due to its interframe nature, giving the scaffold as a whole a high level of strength.

○ In addition, the net 31 provided thereon covers the entire outer surface of the scaffold without any gaps, thereby reliably protecting against falling objects.

○ Furthermore, since each stage is set in parallel with the assembly of the scaffold, it functions effectively as a measure against falling objects during the scaffold assembly process.

In addition, it is reasonable to complete measures to prevent fallen objects from occurring as soon as the scaffolding is erected, and the effort and time required for temporary scaffolding can be reduced by a factor of 11.

○ It is also effective as a handrail, and when used in conjunction with an H-shaped building frame, it guarantees the safety of workers even when assembling scaffolding.

Furthermore, since the size of each net is small, it does not flap or make noise unlike conventional curing nets. In addition, it is configured to be detachable from the side frame body, making it easier to clean by removing it from the body, and when transporting and storing it, it can be handled while attached to the body, making it less bulky and easier to handle. Become.

[Brief explanation of the drawing]

Figures 1 (a) and 2 (a) are exploded perspective views showing a side frame according to an embodiment of the present invention, both figures (1) and (c) are partial detailed views of the side frame, and Figure 3 Figure 4 is a perspective view showing a frame scaffold to which the same upper side frame is applied; Figure 5 is a front view showing the building frame of the same upper frame scaffold; The figure is a front view showing the side frame on the inner side, and FIG. 7 is a schematic explanatory view showing a conventional framework scaffold. In the figure, l: building frame, 2: scaffolding board, 3: side frame. Applicant: Taisei Corporation Figure 5/J'S6 Figure (A) Elementary 3 Figure Figure 7

Claims (1)

[Claims] (1) Consists of a combination of a side frame body (30) which is basically a rectangular rigid frame, and a net (31) which is also rectangular and has approximately the same size as the side frame body (30). 30)
has a width (W_2) approximately corresponding to the arrangement interval (1) of the building frames (1) arranged in parallel, and there are building frames (1) near the four corners.
The side frame main body (30) is further provided with an engaging means (32) for engaging the engaging pin (15) provided on the building site (10), and the side frame body (30). ), and a net (31) is removably attached to the side frame by means of the engaging means.