JPH055986B2 - - Google Patents

Description

[Detailed description of the invention]

[Industrial Field of Application] The present invention provides a framework for use in framework scaffolds that are temporarily constructed along the outer wall surfaces of buildings, etc., and that functions as a strength member in place of braces and as a handrail, as well as a protection function against falling objects. Regarding scaffolding side frames. [Prior Art] 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. 9
1 is installed. Scaffolding boards 2 are spanned between the horizontal lots 90a and 90a of the adjacent building frames,
Work floors A ₁ , A ₂ ... are secured. Top building frame 9
0, a support 92 is erected and a handrail 93 is set. [Problems to be Solved by the Invention] However, the above-mentioned known framework scaffolds have the following problems. During assembly or disassembly (reassembly) work, there is no handrail for ensuring safety for workers standing on the scaffolding boards 2 of each stage, and they are forced to perform extremely dangerous work. Frame 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 accidents caused by falling objects even during erecting, and it cannot be said to be a sufficient measure. Furthermore, both the curing frame and the net are troublesome to install and require considerable effort. Nets are generally 5100mm long and are designed to cover three levels of the building frame with one piece, but attaching to the building frame is a hassle as it requires tying it to the building site with a string. It is. 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 around in the wind and become a source of noise. Furthermore, even if only one part is damaged, it is necessary to replace the entire large piece, 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. ing. 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 the problems] As shown in FIG. The main body 30 is made of angle material, and has an outer width W ₂ that approximately matches the inner width W ₁ between the adjacent buildings 10, 10 of the building frames 1 arranged in parallel,
Attached to the four corners of the frame are connecting pieces 302 for connecting with the building frame building site 10 that extend laterally on the edge side of the vertical flange portion 300a that stands in the direction of the frame and rotates around the outer periphery. Engagement pin 1 inside
5... to support the side frame main body 30 in a state where it fits between the buildings without any gaps, and the frame 310 of the framed net 31 is disposed within the vertical flange portion 300a of the side frame main body 30. engagement means 32 with
is attached to the frame net 3 by this engaging means.
1 is removably installed in a vertical flange portion 300a. [Function] As shown in FIG. 3, the side frame 3 of the present invention has the following features:
It is attached between adjacent building lots 10 on the outer side of building frames 1 arranged in parallel. In this attached state, the side frame 3 provides the scaffold with strength against horizontal forces by its own frame rigidity, that is, has a function that replaces braces. In this case, the framed net 31 closes the opening on the outer side of the scaffold and functions to protect against falling objects. As shown in FIG. 1D, the side frame 3 is completely connected between the adjacent building lots 10, 10 by the connecting pieces 302 of the side frame body 30 and the engagement pins 15 of the frame building site 10. Since the main body 30 is fitted in a fit-in state and has an outer width W ₂ that is approximately the same size as the inner width W ₁ between adjacent building lots, there is no gap between the two building lots. This state with no gap is caused by the fact that the side frame main body 30 is made of angle material and the vertical flange portion 300a corresponding to the building site 10 is flat.
Even if there is a certain degree of play (in the longitudinal direction of the engaging pin) in the engagement state between 2 and the engaging pin 15, the engagement will always be maintained. This is why the framed net 31 achieves reliable protection. Furthermore, the side frames 3 are set for each tier in parallel with the assembling of the building frame 1 when the scaffolding is being erected, 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 as 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 curing nets, and it can be used for temporary scaffolding. The required effort and time can be saved. Not only that, the side frame main body 30 itself serves as a handrail, and the safety of workers is ensured even during the process of assembling the scaffolding. Furthermore, since each frame net 31 is small in size, 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 your work space. Furthermore, it is configured to be removable from the side frame main body 30, so that it can be removed from the main body 30 for cleaning, and can be handled while attached to the side frame main body during transportation, storage, etc., and is bulky. It is easy to handle. [Embodiment] The above-mentioned FIG. 1 shows an embodiment of the present invention, in which A is a diagram for explaining the overall structure, and B to D are partially enlarged views. As shown in the figure, the side frame 3 has a rectangular shape as a whole and consists of a side frame main body 30 and a frame net 31.
The side frame main body 30 has a reinforcing material 30 disposed therein.
1, and connecting pieces 302 provided near the four corners of the side frame main body 300. 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 frame net 31 is provided on the front side of the side frame body 30. That is, the lower horizontal member _300x2 has a flat flange portion 3.
00b, an appropriate number of engaging pieces 32 (see FIG. 3) are provided to sandwich and hold the frame 310 of the framed net 31. A spring type clip 33 as shown in Figure C is provided on the upper horizontal member _300x1 and both vertical members _300y1 , _300y2 . The spring type clip 33 is made of a plate material (spring material) and has a cross-sectional shape like a bottle with a narrow mouth. And the base 33 which is the bottom of the bottle
a is fixed to the flat flange 300b of the side frame main body 30 by bolts 34, and the engagement opening 33c is open toward the front side of the frame. To install the frame net,
The frame 310 is pressed against the engagement opening 33c, passed through the narrow portion against the spring force, and is fitted into the widened interior and held. The dimensions of the side frame body 30 are such that the outer width W ₂ approximately matches the inner dimension W 1 between the adjacent building lots (hereinafter simply referred to as adjacent building lots) 10, 10 of the building frames ₁ that are arranged in parallel as described below. ing. The height H ₂ is the height H ₁ of the building lot 10
It is approximately half the size of the original. 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 connecting pieces 302 are connected to both vertical members 30 of the side frame main body 30.
0y ₁ , 300y ₂ vertical flange portion 300a outer surface side,
It is located near the top and bottom ends. The shape is L-shaped.
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 10. This connecting piece 302 is located on the front side (edge side) of the outer frame vertical flange portion 300a, as shown in Figure 2.
The ear portion 302a extends inward from the side of the building site 10 and engages 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, 10. On the other hand, the framed net 31 consists of a rectangular frame 310 made of bar material and a mesh sheet 311 attached to cover the inner surface of the frame.
The net 311 is a peripheral portion 311 that is finished with a cloth.
A string is passed through a hole 311b drilled in a and fixed to the frame 310. In addition, in the illustrated example, the frame 310 has reinforcing materials 310a at the four corners and between the upper and lower sapwoods, but the method of providing the reinforcing materials is not limited, and may not be provided in some cases. It is possible. This frame net 31 is attached to the inner surface of the side frame body 30 by means of engagement means 32 and 33 on the side frame body 30 side, and is also removable. In the attached state, it fits within the vertical flange portion 300a that rotates around the side frame main body. To install, first attach the frame net 3 to the back of the engagement piece 32 of the lower horizontal member _300x2 of the side frame body 30.
Drop in 310x _{2 pieces} of sap material at the bottom of the frame from step 1. Using this as a fulcrum, turn the frame net 31 to bring it close to the side frame body 30, and attach the frame 3 to the spring clips 33 of both vertical members 300y ₁ , 300y ₂ and the upper horizontal member 300x ₁ .
10 may be engaged. When removing, 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 scaffold as a whole has a multi-tiered work floor A ₁ ,
It consists of a working floor unit U ₁ forming A ₂ . The basic components of the work floor unit _U1 are the building frame 1, 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. ○Building frame 1 Figure 4 shows the front view. According to the figure, the building frame 1 is an H-shaped frame, and includes a pair of building lots 10, 10, a horizontal lot 11 that connects the two building lots at the upper and lower division points, and a horizontal lot 11 on the lower side of the horizontal lot 11, Inverted U-shaped reinforcing material 12 placed between the bases 10 and 10
The basic parts are made up of. 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. Further, on each of the building lots 10, 10, engagement pins 15 with spring-type retaining pieces 150 are provided at four locations, near the upper and lower ends, directly above and directly below the horizontal lot 11 attachment position. . All of the engaging 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 of each building site 10 directly below the attachment position of the horizontal lot 11. This through hole 100 is used when installing scaffolding equipment such as morning glory. The reinforcing material 12 spanning both building lots 10, 10 is
It is connected to the horizontal floor 11 by a connecting plate 120 at its center. Connection plate 1
A through hole 120a is drilled in the through hole 120, which can be used when attaching a tie rod for support and reinforcement when attaching a morning glory or the like using the through hole 100. Regarding the building frame width, if the temporary construction is for general buildings, a width of about 600 mm is sufficient; anything over 850 mm is not necessary for the work and is not desirable from the standpoint of installation space. For the height H ₁ ,
From the perspective of securing the necessary space for work based on a person's height, a value of about 1700 to 2000 mm is appropriate. ○Scaffolding board 2 The scaffolding board 2 is normally used, and is provided with engagement claws 20, 20 for engaging the building frame horizontal area 11 at both ends. ○ Side frame on the inner surface side (body side) This is generally used as a handrail and strength member, such as a handrail frame 35 as shown in Figure 5A, or a handrail material 36 as shown in Figure 5B. A combination of the diagonal member 37 and the diagonal member 37 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 l, and the required number of stages are added in the vertical direction as well. A jack base 8 is attached to the bottom end of the lowest building frame. The placement interval l is 1829mm, 1524mm for inch size,
It will be set at around 1219mm and 914mm. The connection in the vertical direction is via the connection pin 13 at the upper end of the building site 10 described above. Scaffolding boards 2 are connected and spanned between adjacent horizontal lots 11, 11 of each tier of such a building frame 1, forming working floors _A1 , _A2 ... for the number of erected tiers of the building frame. ing. The engagement with the horizontal ground 11 is done using the engagement pieces 2 on both ends of the scaffolding board 2.
According to 0.20. The side frame 3 is provided between each adjacent building site 10 on the outer surface side (reverse frame side) in each stage of the building frames 1 . The height of side frame 3 _H2 is the height of one building frame _H1
The side frame 3 is half of the working floor A at each stage.
One wall is built above and one below the level. Although some parts are omitted in FIG. 3 for convenience of illustration, the side frame 3 is provided so as to cover the entire outer surface. The side frame 3 is fixed using the four connecting pieces 302 of the side frame...
is fitted 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 sites 10, 10 on both sides as shown in FIG. There are almost no gaps between the two. Although the side frames on the inside side (frame side) are not shown in Figure 3, their height is half the height _H1 of one building frame, and one unit is placed for each level of building frame 1. It will be built above the A level of the work floor. In the illustrated example, a diagonal member 5 is attached to the lower side of the lowermost work floor _A1 instead of the side frame. In the scaffold configured as described above, the side frames 3 placed on each tier of the work floor unit _U1 serve to strengthen the tiers themselves in the horizontal direction, and as a result, make the whole sturdy. Moreover, each side frame 3 fits between the adjacent building lots 10, 10, and there is substantially no gap between the building lots 10. The side frame main body 30 is made of angle material, and the vertical members 300Y ₁ facing the building lots 10, 10,
Since the vertical flange portion 300a of _300Y2 is flat, no gap will be created even if the mounting state of the side frame moves due to the margin of the engagement portion of the engagement pin 15 on the building site. Therefore, the frame net 31 provided on the side frame can reliably protect fallen objects. Next, the scaffolding is removed as follows. First, the lowest building frame 1 of work floor unit U ₁ ...
are installed, diagonal members 5 are set on the lower side between each building frame, and scaffolding boards 2 are stretched between adjacent horizontal lots 11, 11. After doing this, the unit
Go up onto the scaffolding board 2 of _U1 and attach the outer side frame 3 and the inner side frame on the lowermost side. Once the bottom tier is completed in this way, the building frame 1 of the second tier is added on top of it, the lower outer side frame 3 of the second tier is attached, and the scaffold board 2 is hung. In this manner, work units _U1 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. In 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 the inner side frame 3 to the tiered building frame 1 and then directly. The process proceeds by adding the upper building frame 1 → installing the lower outer side frame 3 and the scaffolding board 2 to the added building frame 1 in order, but in this case, the subsequent work is always carried out during the work. The work will be carried out with side frames on both the outside and inside sides of the steps, 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 scaffolds using general torii-shaped building frames. [Effects of the Invention] The side frame of the present invention described above has the following features and advantages. ○ When incorporated into a scaffold, its frame rigidity resists horizontal forces, giving the entire scaffold 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. ○ When assembling the scaffolding, each stage is set in parallel with the erection of the building frame, so it functions effectively as a protection measure 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 when used in conjunction with an H-shaped building frame, the safety of workers is guaranteed even when the scaffolding is being erected. Moreover, since each frame net 31 is small in size, it does not flap or make noise unlike conventional curing nets. Moreover, it can be attached and detached from the side frame main body 30, so cleaning can be done by removing it from the main body 30, and when transporting and storing it, it can be handled while attached to the main body 30, which reduces the bulk. It becomes easy to handle without falling apart. ○ In addition, the frame net 31 fits completely within the side frame main body 30, does not infringe on the work space, looks good, and is stable even when the side frames are overlapped with the frame net 31 attached. Good sex,
Improves transportability and storage.

[Brief explanation of the drawing]

Figure 1A is an exploded perspective view showing an example of the side frame of the present invention, Figures B to D are partial detailed views of the side frame, and Figure 2 is a schematic diagram showing variations in how to take reinforcing materials for the side frame. Figure 3 is a perspective view showing an example of a framework scaffold to which the same upper frame is applied, Figure 4 is a front view showing a building frame used for the same upper frame scaffold, and Figures 5 A and 5 are similarly internal side views. A front view showing the side frame and FIG. 6 are schematic explanatory views showing a conventional framework scaffold. In the diagram, 1...building frame, 2...scaffolding board, 3...side frame.

Claims (1)

[Claims] 1 Side frame main body 33 based on a rectangular rigid frame
and a square-shaped framed net 31,
The side frame body 30 is made of angle material, and the adjacent building lots 10, 1 of the building frames 1 arranged in parallel.
It has an outer width W ₂ that approximately matches the inner width W ₁ between 0 and 1, and furthermore, in the vicinity of the four corners of the side frame body 30, there are flange portions 300a that stand in the direction of the frame and rotate around the outer periphery. A connecting piece 302 with the overhanging building frame building site 10 is attached, and the adjacent building site 10,10
The side frame main body 30 is engaged with the engaging pins 15 on the inside of the
The frame body 31 of the framed net 31 is arranged in the vertical flange portion 300a of the side frame main body 30.
0 is provided, and these engaging means cause the frame net 31 to engage with the vertical flange portion 30.
A side frame for a framed scaffold, characterized in that it is removably installed inside the 0a.