JPH01146059A - 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 detachably mounting a framed net into a flange part of a rectangular side frame body formed of angle members, through engaging means to constitute a side frame. CONSTITUTION: A side frame 3 is constituted by detachably mounting a framed net 31 through engaging means into a flange part 300a of a side frame body 30 provided with tie-in pieces 302 near four corners and formed of angle members with an outer width W2 almost coinciding with inside measurement W between adjacent upright posts 10, 10 of standards 1 arranged in parallel. The side frames 3 are fitted by the tie-in pieces 302 of the body 4 and the engaging pins of the standard upright posts 10 so as to be exactly fitted without a clearance between the adjacent upright posts 10, 10 of the standards 1 arranged in parallel and built up in multiple stages. 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.

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 has the function of a strength member and handrail in place of braces, and a fall prevention function. This invention relates to a side frame for a framework scaffold that also has a curing function for objects.

[Conventional technology]

As this type of framework scaffold, the one shown in Fig. 6 is currently in general use. That is, in the figure, a plurality of torii-shaped or ladder-shaped building frames 90 are arranged side by side at predetermined intervals, and the required number of building frames 90 are connected in the vertical direction, and there are cross braces between adjacent building frames. 91 is installed. Scaffolding boards 2 are spanned between the horizontal lots 90a, 90a of the adjacent building frames, and working floors A, Ao, . . . are secured. Supports 92 are erected on the uppermost building frame 90, and handrails 93 are set.

[Issues to be decided in advance by invention]

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

- During assembly or disassembly (assembling) work, there are no handrails to ensure safety for workers standing on the scaffolding boards 2 of each step, and they are forced to perform extremely dangerous work.

■ Framed scaffolding usually has a curing frame (framed metal steel) or curing net (mesh sheet) stretched 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. Nets are generally 5,100 m long and are designed to cover three levels of building frames with one piece, but attaching to the building frame is a hassle as it requires tying it to the building site with strings. It is. 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.

An object of the present invention is to provide a side frame for a framed scaffold that eliminates the above-mentioned problems of conventional scaffolding.

[Means for solving problems]

As shown in FIG. 1, the present invention consists of a combination of a side frame main body 30 based on a rectangular rigid frame and a rectangular frame attached net 31, and the side frame main body 30 is made of angle material. At the same time, adjacent building lots 10 and 1 of the building frame l... arranged in parallel
It has an outer width W2 dimension that approximately matches the inner width W between 0 and 0,
Further, near the four corners of the side frame main body 30, connecting pieces 302 for connecting to the building frame building site lO are attached, which extend laterally on the edge side of the vertical flange portion 300a that stands in the direction of the frame projection and rotates around the outer periphery. Engagement pin 15 inside the adjacent building 10.10...
・It is configured to support the side frame main body 30 in a state where it fits in between the buildings without any gaps, and a frame with a frame 31 is installed in the vertical flange portion 00a of the side frame main body 30. 310 is attached, and the frame net 31 is removably attached to the vertical flange portion 00a by this engagement means. .

[For production]

As shown in FIG. 2, the side frame 3 of the present invention is attached 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 due to its interframe nature, that is, it has a function that replaces braces, and in this case, the frame net 31 is an opening on the outer side of the scaffold. This serves as a protection against falling objects.

As shown in FIG. 1(c), the side frame 3 has a side frame body 3.
0 is the connecting piece 302 with the engagement pin 15 of the building frame construction site lO...
・The main body 30 is installed so as to fit completely between the adjacent buildings 10 and 10, and since the main body 30 has the width W2 between the adjacent buildings, there is no gap between each building, and this gap In the state without, since the side frame main body 30 is made of angle material and the vertical flange portion 300a corresponding to the building site 1O is flat, there is a certain degree of difficulty in the engagement between the engagement piece 302 and the engagement pin 15. Even if there is play (in the longitudinal direction of the engagement pin), it will always be held. Framed net 31
This is how they achieve reliable curing.

In addition, the side frames 3 are set for each tier in parallel with the assembling of the building frame 1 when the scaffolding is assembled, so that it is possible to protect fallen objects even when the scaffolding is being assembled. 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 side frame body 30 itself serves as a handrail, ensuring the safety of workers during the process of assembling the scaffold.

Furthermore, since each piece of the framed net 31 is small, it does not flap or make noise unlike a curing net, and it fits nicely inside the side frame body 30 made of angle material. , it does not infringe on the work space, and is configured to be removable from the side frame body 30, so that it can be removed from the body 30 for cleaning, and can be attached to the side frame body during transportation, storage, etc. It can be handled as is, and is not bulky and easy to handle.

〔Example〕

The above-mentioned FIG. 1 shows one embodiment of the present invention, in which (a) is a diagram illustrating the overall sideways, and (b) to (b) are partially enlarged views.

According to the figure, the side frame 3 has a rectangular shape as a whole and consists of a side frame main body 30 and a framed net 31.

The side frame main body 30 includes a reinforcing member 301 disposed inside the side frame main body 30,
Connecting pieces 302 provided near the four corners of the side frame main body 300
...and is provided.

The side frame body 30 is made of angle material, and has a vertical flange portion 300a that stands in the direction in which the frame is viewed, and a flat flange portion 300b that bends from the vertical flange portion toward the inside of the frame. For convenience, the side surrounded by the vertical flange portion 300a and the flat flange portion 300b is referred to as the front side.

Engagement means for attaching the framed net 31 is provided on the front side of the side frame body 30. That is, the lower horizontal member 300X is provided with an appropriate number of engaging pieces 32 (see the front diagram) that hold the frame 310 of the frame net 31 between them and the flat flange portion 300b. Upper side member 300X
A spring-type clip 33 as shown in FIG.

The spring type clip 33 is formed from a plate material (spring material),
It has a bottle-like cross-sectional shape with a narrow mouth. The base 33a corresponding to the bottom of the bottle is fixed to the flat flange 300b of the side frame main body 30 with bolts 34, and the engagement opening 33C is open toward the front side of the frame. To attach the frame net, attach the frame 310 to the engaging opening 33t1. It is pushed against the spring force, passes through the narrow part, and is then fitted into the widened interior and held.

The dimensions of the side frame main body 30 are such that the outer width W2 is equal to the adjacent building lot (hereinafter simply referred to as the adjacent building lot) 1 of the building frame l that is arranged in parallel as described later.
This approximately corresponds to the inner dimension W1 of 0.10. The height H7 is approximately half the height H7 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 2.

The joining piece 302 is attached to both edge members 300y+ of the side frame main body 30.
-300y* is provided on the outer surface side of the vertical flange portion 300a near the upper and lower ends. The shape is L-shaped, and the ear portion 302a that projects laterally has a through hole 302b that is inserted into the engagement pin 15 of the building frame building site IO. As is clear from Figure 2, this connecting piece 302 is attached to the front side (edge side) of the outer frame body flange portion 300a, and the ear portion 302a wraps inward from the side of the building site 10. It is designed to engage with the engagement pin 15. With this connecting piece, the side frame main body 3 is attached in such a manner that it completely fits between the adjacent buildings 10 and 10.

On the other hand, the frame 31 consists of a rectangular frame 310 made of bar material and a net (mensch sheet) 311 attached to cover the inner surface of the frame.

The net 311 is fixed by passing a string through a hole 311b made in a peripheral edge 311a made of cloth and fastening it to the frame 31G.

In addition, in the illustrated example, the frame 310 has reinforcing materials 310a at the four corners and between the upper and lower sapwood, but there is no limit to how the reinforcing materials are provided, and in some cases, reinforcing materials may not be provided. could be.

The frame 31 is attached to the inner surface of the side frame body 30 by engaging means 32, 33 on the side frame body 30 side, and is also removable.

When installed, it fits within the vertical flange portion 00a that revolves around the side frame body.

For installation, the lower side member 30 of the side frame main body 30
Drop the frame upper sap material 310x of frame screw 7) 31 into the engaging piece 32 of 0 It is sufficient to engage the frame 310 with the spring clips 33 of both wire members 300 y + + 300 y * and the upper side member 300x. When removing them, do the opposite.

Next, a framework scaffolding according to an example of a usage mode of the side frame configured as described above will be explained with reference to FIG. 3.

This scaffolding has a multi-tiered work floor A1゜A!・・・
The basic components of the working floor unit U1, which is made up of the working floor unit υ1, are the building frame l, the scaffolding board 2, the side frame 3 on the outside side, and the side frame on the inside side. Since the side frame 3 has already been explained, the configuration of each element other than the side frame 3 will be explained.

O building frame l Figure 4 shows a front view.

According to the figure, building frame 1 is an H-shaped frame, and a pair of building lots 1
0.10, a horizontal lot 11 that connects the reconstructed 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 sites 10 and 10. is configured. 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.

In addition, each of the building lots 10 and 10 has a spring type retaining piece 1.
The engagement pin 15 with 5G is attached to the horizontal area 1 near the upper and lower ends.
They are installed in a total of 4 locations, directly above and directly below the 1st mounting position. All of the engagement pins 15 are shaped to protrude inward from 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 at its center by a connecting plate 120. The connection plate 120 has a through hole 120a.
This can be used when attaching a morning glory or the like using the through hole 100 and attaching a tie rod for supporting reinforcement.

In addition, as for the building frame, if the temporary construction target is general buildings, 600 fi is sufficient, and anything over 850 fi is unnecessary for work and is undesirable from the viewpoint of installation space. From the standpoint of securing the necessary space for work based on the height of the person, 1700 ~
Approximately 2000m 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 inside side of O (118 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 and combination of these components 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, 15241.1219 wm, and 914 wm 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.
According to 3.

The scaffolding board 2 is connected and spanned between the adjacent horizontal areas 11 and 11 of each tier of such a building frame l..., and is connected to the working floors AI, Az... of the frames of the 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, 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 Hl of the building frame,
In each stage, one side frame 3 is built on the upper side and the lower side of the work floor A level as a boundary. 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 lots 10, 10.

In the above-mentioned installed state, each side frame 3 is completely fitted between the building lots 10 and 10 on both sides, as shown in Figure 1), and is in a state where it is completely fitted between the building lots 10 and 10 on both sides. There are almost no gaps between them.

Although the side frame on the inner side (frame side) is not shown in Figure 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 A1 instead of the side frames.

In the scaffold configured as described above, the side frames 3 disposed 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 no gap is created between each building lot 10.

The side frame body 30 is made of angle material, and the building site 10
．． Since the vertical flange portions 300a of the vertical members 300Y, 300Yz facing the vertical members 300Y, 300Yz are flat, even if the mounting state of the side frame moves due to the margin of the engagement portion of the engagement bin 15 at the location, a gap will not occur. Therefore, the frame net 31 provided on the side frame reliably protects the fallen objects.

Next, the scaffolding is assembled as follows.

First, the lowest building frame l... of the work floor unit υ1 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, go up onto the scaffolding board 2 of the unit υ1 and attach the outer side frame 3 and the inner side frame on the lowermost upper side.

Once the bottom tier is completed in this way, add the second tier building frame 1 on top of it, attach the second tier lower outer side frame 3, and hang the scaffolding board 2. In this way, work units υ are assembled in parallel, step by step from the bottom, and when dismantled, the process is completely reversed and the work is done sequentially from the top step downwards.

During such assembly and disassembly work, the worker stands on the scaffolding board 2 for each step and installs the upper outer side frame 3 and the inner side side frame to the relevant step frame l. → ■ Adding the building frame 1 and support frame 6 directly above 10. Installing the lower outer side side frame 3 and scaffold board 2 to the side frame l in order, but in this case, the steps after ■ Work is always carried out with side frames on both the outside and inside sides of the step being worked on, allowing for safe work.

Although the case in which the H-shaped building frame 1 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 -a scaffolding using a 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, it is built so that it fits between adjacent buildings without any gaps, and the frame net (31) provided thereon covers the entire outer surface of the scaffold without any gaps, thereby ensuring the protection of fallen objects.

0 When assembling the scaffolding, each stage is set in parallel with the erection of the building frame, so it functions effectively as a countermeasure against falling objects during the scaffolding process.

In addition, it is reasonable to complete measures to prevent falling objects from occurring as soon as the scaffolding is erected, and the time and effort required for temporary scaffolding can be greatly reduced.

Furthermore, it is also effective as a handrail, and especially when used in conjunction with an H-shaped building frame, the safety of workers is guaranteed even when constructing scaffolding.

○ Moreover, since the size of each frame net 31 is small, it does not flap or make noise as much as conventional curing nets. It is possible to achieve this, and it is easy to clean it by removing it from the main body 30, and when transporting and storing it, it is easy to handle without being bulky if it is handled while attached to the main body 30.

Also, the framed net 31 fits completely within the side frame main body 30, does not infringe on the work space, and looks good, and even if the side frames are overlapped with the framed net 31 attached. It has good stability and makes transportability and storage even better.

[Brief explanation of the drawing]

FIG. 1(A) is an exploded perspective view showing an example of the side frame of the present invention;
Fig. 2) is a partial detailed view of the side frame, Fig. 2 is a schematic diagram showing variations in how to install reinforcing materials for the side frame, and Fig. 3 is an example of a framework scaffold to which the same upper side frame is applied. Figure 4 is a front view showing the building frame used for the above framework scaffolding, Figures 5 (a) and (b) are front views showing the side frames on the inside side, and Figure 6 is a conventional framework. It is a schematic explanatory diagram showing a scaffold. In the diagram, 1: building frame, 2: scaffolding board, 3: side frame. Figure 4, ISS diagram (a)

Claims (1)

[Claims] (1) Consists of a combination of a side frame body (30) that is basically a square rigid frame and a square frame net (31), and the side frame body (30) is made of angle material and parallel Adjacent building lots (10), (1) of placed building frame (1)...
0) The outer width (W_2) approximately matches the inner width (W_1) between
) dimensions, and furthermore, there are vertical flanges (300a) near the four corners of the side frame body (30) that stand in the direction of the frame and rotate around the outer periphery.
A connecting piece (302) with the building frame building site (10) that projects laterally is attached on the edge side of the adjacent building site (10).
0), (10) to support the side frame main body (30) in a state where it fits without any gap between the buildings, and the side frame Main body (3
There is a framed net (300a) in the vertical flange part (300a) of
1) is provided with an engaging means (32) for engaging with the frame body (310), and the framed net (31) is removably attached within the vertical flange portion (300a) by this engaging means. Side frames for scaffolding.