JPH055983B2 - - Google Patents

Description

[Detailed description of the invention]

[Industrial Application Field] This invention relates to a frame scaffold that is temporarily installed along the outer wall surface of a building, etc., and in particular to a stair support frame in a frame scaffold that can eliminate pressure on the work space due to the installation of stairs. Regarding. [Prior Art] As this type of framework scaffold, the one shown in FIG. 5 is currently in general use. That is, in the figure, a plurality of torii-shaped building frames 90 are arranged side by side at predetermined intervals, and the required number are connected in the vertical direction, and intersecting braces 91 are installed between adjacent building frames. It will be done. And the horizontal land 90a, 90 of the adjacent building frame
Scaffolding board 2 is spanned between a and work floors A ₁ and A ₂
... will be ensured. Supports 92 are installed on the top building frame 90.
is erected and the handrail 93 is set. Recently, the use of H-shaped building frames has also been considered. The H-shaped building frame has a horizontal lot at approximately the middle height of the building site.
Scaffolding boards will be erected on this horizontal land, with the intention of increasing safety when assembling and dismantling the scaffolding. [Problems to be Solved by the Invention] However, the above-mentioned known framework scaffolds have the following problems. Work floors A ₁ , A 2 formed by the scaffolding boards ₂ ...It is necessary to provide stairs between each step. As shown in FIG. 5, the framework scaffolding staircase is constructed between horizontal areas 90a and 90a located between each step. However, when the stairs 7 are installed in this way, the width of the work floor A at that location is reduced by the width of the stairs. Therefore, it is necessary to use the building frame 90 with a width that can secure a working floor of the width necessary for the work at the part where the stairs 7 are attached. Generally the staircase width is about 500mm, and for working purposes it is at least 600mm.
Therefore, the width W of the building frame actually needs to be 1100 mm or more. Currently, the building frames are simple frames with a width of 610 mm and a width of 762 mm.
It is classified into standard frames of 914mm width and 1219mm width.
A simple frame is generally used as a scaffold, but 1100
If you want to secure a width of mm or more, you will need a standard frame. Such a wide building frame creates an unnecessarily wide working floor in the general area other than the area where the stairs are attached, which is not only unreasonable and uneconomical, but also inconvenient for transportation, storage, and handling. It is. Furthermore, the width of the scaffold is large, making it inconvenient for use in narrow spaces. The present invention aims to solve the above problems of conventional scaffolding. [Means for Solving the Problems] The first aspect of the present invention, as shown in FIG. A connecting pin 13 is provided at the upper end of the building site 60 to vertically fit and connect the frames, and a connecting plate 6 is provided at the tip of the horizontal site 61 to engage with the building site 10 of the scaffolding frame 1.
3 is attached to the scaffolding frame 1, and is arranged and expanded on the outer surface side of the scaffolding frame 1, and the scaffolding staircase 7 and the scaffold board 2 are spanned over the horizontal ground 61... The supporting frame is the gist. The second aspect of the present invention is, as shown in FIG. 2, a stair support frame 6 whose basic constituent members are a single building site 60 and a horizontal site 61 that is cantilevered horizontally from approximately the midpoint of the building site 60 to one side. A connecting pin 13 is provided at the upper end of the building site 60 to fit with the lower end of the building site 60 of another frame 6 and connect the frames 6 vertically, and a scaffold is provided at the tip of the horizontal site 61. A connecting plate 66 having bolt holes 66a for connecting bolts and nuts 64 to a through hole 100 provided directly below the installation position of the horizontal lot 11 of the building site 10 of the H-shaped building frame 1 to be formed is attached, and the scaffolding The gist is a stair support frame in a framework scaffold, which is arranged and developed on the outer surface side of a building frame 1 and is designed to span the horizontal ground 61 of the scaffolding stairs 7 and scaffold boards 2. [Function] As shown in FIG. 3, both the first and second support frames 6 of the present invention are attached to the outer side of the scaffolding portion (work floor unit) U ₁ that secures the work floors A ₁ , A ₂ . To,
The horizontal lots 61 are arranged at the same intervals as the parallel building frames 1 . Then, a scaffolding staircase 7 is installed between the horizontal areas 61 and 61 located above and below. In addition, scaffolding boards 2 are connected to the upper and lower ends of the stairs 7 and spanned between the adjacent horizontal lots 61, 61 to form landings _B1 , _B2, etc., which connect to the working floors _A1 , _A2, ... of the working floor unit _U1 . That's what I do. In this way, the stairs, which were conventionally incorporated into the part forming the work floor to replace part of the work floor, can now become independent as an adjacent unit (stair unit) _U2 , separate from the work floor unit _U1 . Therefore, the width of the work floor A is not compressed even at the stairway attachment site, and the width of the building frame 1 can be taken up on the work floor. For this reason, there is no need to use an unnecessarily wide building frame (standard frame) as in the past, and the narrow width building frame (standard frame) is economical, convenient for transportation and storage, and easy to assemble. Simple frame) can be used. In addition, in this case, the support frame 6 can be provided on any part of the outer surface of the work floor unit _U1 , so it can be provided in a narrow place by using a partially wide area. Convenient for application to narrow spaces. [Embodiment] FIGS. 1 and 2 described above show an embodiment of the present invention. Figure 1 generally targets torii-type building frames. According to FIG. 1A, the support frame 6 has one building block 60.
, a horizontal strip 61 extending in a cantilevered manner from its upper end to one side, and a quadrant-shaped reinforcing member 62 placed below the horizontal strip 61 form the basis of the frame. The structural members are round steel tubes. A connecting pin 13 for connecting the frames is attached to the upper end of the building lot 60. Also, the building site is 60
Engagement pins 15 with spring-type stoppers 150 are provided at two locations, upper and lower. The engaging pins 15 for locking the arm locks and cross braces are all shaped to protrude into the interior of the frame itself (towards the side where the horizontal ground is brought out). One end of the reinforcing material 62 is fixed to the inside of the building site 60, and the other end extends in an arc to just below the horizontal area 61, where it is attached to the horizontal area 61 via the linking plate 120.
1, and the ends are aligned with the horizontal area 61. A plate 65 is fixed to the ends of the horizontal lot 61 and the reinforcing material 62 so as to straddle them, and a well-known single pipe clamp 63 is attached to this as a means for engaging with the torii-shaped building frame building 10. There is. Single tube clamp 6
3 is shown in detail in a plan view in FIG. Figure 2 shows a support frame for an H-shaped building frame. This support frame, like the support frame shown in FIG. It has been taken out. The connecting pin 13 attached to the upper end of the building site 60 is equipped with a locking mechanism 14 that locks the end portion of the building site fitted therein by inserting a spring-loaded lock pin 140 into a side hole of the same portion. This is an alternative locking method to arm locking. Further, the engagement pins 15 with spring-type retaining pieces 150 are provided at a total of four locations near the upper and lower ends of the building lot 60, directly above and directly below the mounting position of the horizontal lot 61. In the area directly below the installation position of the horizontal lot 61 of the building site 60,
A through hole 100 is provided in the longitudinal direction of the lateral land.
This is used when setting up scaffolding equipment such as morning glory. A through hole 120a is drilled in the connecting plate 120 that connects the building site 60 and the reinforcing material 62, but this is used when attaching tie rods for support and reinforcement when installing morning glories etc. using the through hole 100. It is used for such things. At the ends of the horizontal lot 61 and the reinforcing material 62, a connecting plate 66, which is a means for connecting to the building frame building site 10, is attached so as to straddle them. This joining plate 66, which replaces the single pipe clamp, has a shape that follows the outer surface of the building frame building site 10, as shown in the figure.
A bolt hole 66a is provided in the upper and lower center portions. In this case, the bolt holes 66a are aligned with the through holes 100 directly below the horizontal land attachment position of the building frame building site 10, and the bolt holes 66a are connected with bolts and nuts 64. The width of the support frame 6 shown in FIGS. 1 and 2 only needs to be wide enough to accommodate the scaffolding stairs 7. Specifically, about 600 mm is sufficient.
The height should match the building frame 1 of the scaffolding to which it is applied. Next, the framework scaffolding according to an example of the usage mode of the support frame having the above-mentioned configuration will be explained as follows.
This will be explained using figures. This scaffold as a whole consists of a multi-level work floor A ₁ ,
It consists of a work floor unit U ₁ forming A ₂ ... and a stair unit U ₂ providing stairs connecting each step of the work floor. In the figure, both units U ₁ and U ₂ are drawn separately for convenience of expression, but in reality they are one unit in the relationship indicated by the arrows. The basic components of the work floor unit U ₁ are the building frame 1
, a scaffold board 2 and a side frame 3, and the stair unit _U2 attached to the work unit _U1 has the above-mentioned support frame 6, scaffolding stairs 7, scaffold board 2, and side frame 3 as its basic components. It's summery. Since the support frame 6 has been explained previously, each component except for the support frame 6 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. Each building site 10 is provided with a connecting pin 13, a locking mechanism 14, an engaging pin 15, etc., similar to the support frame building site 60. Since these accessories are exactly the same as those for the support frame construction site 60, detailed explanations will be omitted. The through holes 100 in the longitudinal direction of the horizontal lot provided in the portion directly below the attachment position of the horizontal lot 11 of each building site 10 are for connection with the joining plate 66 of the support frame 6, as already described. However, this through hole 100 is also 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
20 has a through hole 120a, which is similar to the support frame 6, and is used when attaching a tie rod for supporting reinforcement when attaching a morning glory or the like using the through hole 100. Regarding the frame width, if the temporary construction is for general buildings, a simple frame of 610 mm or 762 mm is sufficient.
Standard frames exceeding 900mm are not required for work purposes.
This is not desirable from the standpoint of installation space. height H ₁
From the standpoint of securing the necessary space for work based on the height of the person, a suitable width is approximately 1700 to 2000 mm. Scaffolding board 2 The scaffolding board 2 is normally used, and is provided with engagement claws 20, 20 at both ends for engagement with the building frame horizontal area 11. ○ Side frame 3 This is a strength member installed between adjacent building sites 10 and 60 on the outside and inside sides of the building frame 1 and the support frame 6. As this strength member, cross braces are used in torii-type building frames, but in addition to cross braces, in H-type building frames, square frames that also serve as handrails, triangular handrail frames, combinations of handrails and diagonal members, etc. are used. It will be done. In FIG. 3, a triangular handrail frame (not shown) is used on the inner side, and a rectangular frame to which a curing net is removably attached is used on the outer side. ○ Scaffolding stairs 7 Like the scaffolding board, it is commonly used, and the upper and lower ends have claws 70, 70 for engaging the horizontal ground.
It is equipped with The configuration of each element is as described above, and next, the arrangement and combination state of these elements will be explained. First, in the work floor unit _U1 , the required number of H-shaped building frames 1 are arranged in parallel at a predetermined interval 1, and the required number of stages are added in the vertical direction. A jack base 8 is attached to the lower end of the building frame building site 10 at the lowest level. Arrangement spacing l is 1829mm, 1524mm, 1219mm, 914mm for inch size
It is set to about mm. 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 connection to the horizontal area 11 is made using the engaging claws 2 on both ends of the scaffold board 2.
According to 0.20. The side frames 3 are provided between adjacent buildings 10, 10 on the outer side and the inner side in each stage of the building frames 1. The height H ₂ of the side frame 3 is approximately half the height H ₁ of one H-shaped building frame (see Fig. 4), and the side frame 3 has a height of 100 mm at each level, and the outer side of the side frame 3 is connected to the working floor A level. At the border, one on the upper side and one on the lower side,
In addition, for the inner side, one piece is built above the level of the work floor A, and as a result, for the outer side, the parts corresponding to the landings B on each floor of stage unit _U2 , which will be described later, are left as openings S. It will cover the entire side. Opening S in the area corresponding to landing B
The two side frames of the elevated part of the work floor were left unattached and left in place. Since the side frame 3 is located on the outside side of the building frame 1, it is not necessary to separately install a stair handrail. The side frame 3 is fixed by connecting a plurality of connecting pieces provided on both sides of the side frame to the engagement pins 15 with retaining pieces of the building site 10, 10...
By fitting the 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. Next, the stair unit U ₂ is connected to the working floor unit.
It is provided corresponding to 5 spans of _U1 (6 building frames), and 6 supporting frames 6 are used in parallel. That is, on the outer side of the work floor unit _U1 ,
Six sheets are installed at corresponding positions at the same intervals l as the building frame 1, and the same number of stages as the building frame 1 are assembled in the vertical direction. The support frame 6 is connected to the bolts of the connecting plate 66 at the end of the horizontal ground 61, respectively.
It is connected to the outer building site 10 of the corresponding building frame 1 by fixing with nuts 64. In this state, the horizontal area 61 of the support frame 6 is at the same level as the horizontal area 11 of the H-shaped building frame of the work floor unit _U1 . A jack base 8 is attached to the lower end of the support frame 6 at the lowest stage. The scaffolding stairs 7 are arranged in a staggered manner in the vertical direction at the span sections on both sides of the five-span center span section of such a support frame, and one is provided between each step of the support frame 6. There is. Each staircase 7 has a structure between the support frame rows standing on both sides of the corresponding span section.
It spans the gap between the support frame horizontal areas 61 and 61 on the adjacent floors. The deal with Yokochi 61 is
By engaging claws 70, 70 at both ends of the scaffolding staircase 7. Next, the scaffolding board 2 is constructed of all adjacent horizontal land 61,
It is located between 61 and 61. Among these, those connected to the upper and lower ends of each staircase 7 form a landing B. Each landing B is at the same level as the adjacent work floor A, and is arranged on the side of each floor work floor. On each floor, the work floor A and the landing B are connected through an opening S left on the outer surface of the work floor unit. Workers go back and forth between the work floor A and the landing B through this opening S, and go up and down using the stairs 7. The overall method of lifting and lowering is a spiral type with work floors A ₁ , A _{2 , . .} . as intermediates. It should be noted that among the scaffold boards 2, those that do not serve as landings are necessary for the purpose of assembling the scaffold, and are also important in terms of strength. The side frame 3 is attached between adjacent building lots 10, 10 on the outer surface side in each stage of the support frames 6. The installation and attachment methods are exactly the same as those for the work floor unit _U1 on the building frame 1. Also, as in the previous case, the diagonal member 5 is used only on the lower side of the lowest stage. 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. On the other hand, at the required location outside this,
Erect the bottom support frame 6 of stair unit U ₂ ,
The horizontal lot 61 is tied to the building site 10 of the building frame 1 that has been installed previously. Scaffolding boards 2 are then placed between each of the horizontal lots. After doing this, go up onto the scaffolding board 2 of both units U ₁ and U ₂ and attach the lowermost upper side frame 3 on both the outer and inner surfaces. Once the bottom tier is completed in this way, the second tier building frame 1... and support frame 6... are added on top of this, and the support frame 6 is fixed to the building frame 1, and the outer side has two tiers.
Attach the lower side frame 3 of the step and hang the scaffold board 2. On the support frame 6, a scaffolding staircase 7 is placed at a predetermined span. In this manner, the work unit U ₁ and the stair unit U ₂ are assembled one step at a time from the bottom in parallel. When dismantling, follow the exact opposite procedure and work your way down from the top. In addition, although the case where the building frame for the work floor is an H-shaped frame has been described above, if the building frame for the work floor is a general torii-type building frame, by using the support frame shown in Figure 1. Similarly applicable. [Effects of the Invention] The stair support frame of the present invention described above has the following features and advantages. ○ Work floor A ₁ , A ₂ ...Since the stairs connecting each step will be installed separately from the work floor forming part as stair unit U ₁ , the width of work floor A will be compressed also at the stair installation part. The entire width of building frame 1 can always be used as a work floor. Therefore, there is no need to use a building frame 1 that is wider than necessary in anticipation of the pressure caused by the installation of stairs, as was the case in the past, and there are great advantages in terms of economy, transportation, storage, and assembly work. You can expect it. ○ In this case, the stair unit U ₂ only needs to be installed in a part of the work floor unit U ₁ , so even if there is not enough temporary space, if there is some free space in one part, you can use it. It has the advantage of being able to be installed in small spaces.

[Brief explanation of the drawing]

1A and 2A are front views showing an example of the support frame of the present invention, both figures B are partial sectional views, and FIG. 3 is a perspective view showing an example of a framework scaffold to which the same support frame is applied. Fig. 4 is a front view showing a building frame used for the above-mentioned frame scaffold, and Fig. 5 is a schematic explanatory diagram showing a conventional frame scaffold. In the figure, 1... Building frame, 2... Scaffolding board, 3... Side frame, 6... Support frame, 7... Scaffolding stairs.

Claims (1)

[Scope of Claims] 1. A stair support frame 6 whose basic constituent members are one building site 60 and a horizontal area 61 that is cantilevered horizontally from the upper end of the building site 60 to one side, the upper end of the building site 60 is provided with a connecting pin 13 that fits with the lower end of the building site 60 of another frame 6 and connects the frames 6 vertically, and at the tip of the horizontal area 61 is provided a connecting pin 13 of the torii-shaped building frame 1 that forms a scaffold. A single pipe clamp 63 is attached for connecting to the building site 10, and is arranged and expanded on the outer side of the scaffold building frame 1 so that the scaffold stairs 7 and the scaffold board 2 can be spanned over the horizontal site 61. A stair support frame in a framework scaffold characterized by: 2. A stair support frame 6 whose basic constituent members are a single building site 60 and a horizontal site 61 that is cantilevered horizontally from approximately the midpoint of the building site 60 to one side.
The upper end fits with the lower end of the building site 60 of another frame 6, and the frame 6
A connecting pin 13 is provided for vertically connecting the two parts, and a through hole 100 is provided at the tip of the horizontal area 61, which is provided directly below the installation position of the horizontal area 11 of the building site 10 of the H-shaped building frame 1 that forms the scaffolding. A connecting plate 66 having bolt holes 66a for connecting bolts and nuts 64 between them is attached, and is arranged and expanded on the outer side of the scaffolding frame 1, and the scaffolding stairs 7 and the scaffolding board 2 are mounted on the horizontal ground 61. A stair support frame in a framework scaffold, characterized in that it is adapted to pass.