JPH07122333B2 - Assembling method of scaffold and assembly table used for this - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a scaffold assembling method and an assembling table used therefor, and more particularly, to a workability in manufacturing a scaffold by assembling a gate-shaped building frame in a plurality of rows and a plurality of stages. Technology related to improvement

[0002]

2. Description of the Related Art In recent years, various types of scaffolds to be installed at construction sites have been proposed or put into practical use. As an example of this type of scaffold, for example, a steel material as shown in FIG. The scaffold of is used for practical use. The reference numeral (a) in the figure is a front view of the scaffold, and the reference numeral (b) is a side view of the scaffold.

The above scaffold is a gate-type building frame shown in FIG.
It is manufactured by assembling 100 in a plurality of rows and a plurality of stages, and this gate-shaped building frame 100 includes standing pipes 101 and 101 arranged on both sides at a predetermined interval and both standing pipes 101 and 101. It is composed of reinforcing pipes 102, 102 for reinforcement and a connecting pipe 103 for connecting the upper ends thereof.

Then, the upper end portions 7c, 7d of the standing pipes 101, 101 of the gate-shaped building frame 100 arranged in the lower stage are connected to the legs (openings) of the standing pipes 101, 101 of the gate-shaped building frame 100 arranged in the upper stage. 7a and 7b are fitted together, and the upper and lower stages are connected together.
As shown in FIG. 5, the plurality of rows of gate-shaped building frames 100 arranged adjacent to each other in the lateral direction are connected by the braces 8 arranged in a cross shape.

When assembling a scaffold having such a structure, first, the lowermost multi-row gate-shaped building frames 100 are connected by braces 8, and then the second-stage gate-shaped building frames 100 and Cloth 104
The conventional assembling method is to raise members such as the above upwards, connect the members to the above-mentioned gate-shaped building frame 100 at the lowest stage and assemble them one by one in this manner. It was As shown in FIG. 10, the cloth plate 104 laid on the upper end of each gate-shaped building frame 100 is for a worker to walk.

[0006]

However, according to the method of lifting each member upward and connecting and fixing them one step at a time as in the above-described method of assembling the scaffold, the work is performed after each member is lifted by the crane. It is indispensable for the worker to remove it from the crane at the top and assemble it at the top, which increases the burden on the worker, and the worker must work at a high place as he goes up. It has a problem that it is forced to work in a dangerous state.

Further, the work of connecting and fixing the plurality of gate-shaped building frames 100 with the braces 8 in a state where they are separated from each other by a predetermined size at the beginning is related to the fact that conventionally no positioning table or temporary table is used. , It is extremely difficult to temporarily place each gate-shaped building frame 100 so that the dimensions between adjacent ones are accurate, and to fix them by braces 8 while preventing them from falling down. This resulted in deterioration of work efficiency and prolongation of work time.

It is a technical object of the present invention to improve the safety of the scaffolding assembling work, reduce the burden imposed on the worker, and further improve the work efficiency.

[0009]

The present invention is characterized in that it has the following structure in order to achieve the above technical objects.

That is, in the assembling method using the gate-type building frame according to the first aspect of the present invention, the gate-type building frames of a plurality of rows are temporarily placed in the lateral direction and these are temporarily assembled by the braces to form an assembly frame body. The upper, middle, and lower stages are to be independently manufactured on the ground, and first, the upper assembly frame is placed above the middle assembly frame existing on the ground, and the opposite ends of both are assembled. Connect the parts to produce the upper middle stage assembly frame, then,
The upper middle tier assembly frame is placed above the lower tier assembly frame existing on the ground, and the opposite ends of the upper and lower tier assembly frames are connected to produce the upper, middle, and lower tier assembly frame. The scaffold is assembled by treating the upper, middle, and lower assembly frames as one unit.

The assembly table used in the method of assembling a scaffold according to the second aspect of the present invention is provided with a mounting plate on which the legs of a plurality of rows of gate-shaped building frames are mounted, and above the mounting plate. And a plurality of locking portions for locking the legs of each gate-shaped building frame at regular intervals, and a footrest having a predetermined height fixed above the mounting plate.

[0012]

According to the scaffold assembling method according to the first aspect of the present invention, when assembling the upper, middle and lower three stages, the temporary assembly by the braces of the upper, middle and lower gate-shaped building frames is performed on the ground. Then, the upper assembly frame is appropriately lifted at the required timing, placed above the middle assembly frame existing on the ground to connect and fix both, and then this connected and fixed upper middle assembly frame is provided at the required timing. Then, the upper middle stage assembly frame is placed above the lower stage assembly frame existing on the ground and both are connected and fixed, whereby three stages of the upper middle lower stage assembly frame are obtained as one unit. In this case, a cloth plate is appropriately attached to the upper end of each gate-shaped building frame.

After this, again, in the same manner as above, 3
The scaffolding assembly work is completed by sequentially creating one unit for each stage, and then selectively hoisting and connecting and fixing each of these units at the same time and fixing them at the installation place.

On the other hand, according to the assembly table of the second aspect of the present invention, when the above-mentioned scaffolds are assembled, when each gate-shaped building frame is temporarily assembled by braces on the ground, the assembly table is assembled on the ground. Then, the plurality of rows of the legs of the gate-shaped building frame, that is, the lower end portion of the standing pipe 101 shown in FIG. 11 described above are attached to the plurality of locking portions formed on the mounting plate of the assembly table at regular intervals. Lock it. As a result, each gate-shaped building frame is temporarily placed in a state of standing upright at regular intervals.

After this, an operator on the ground connects the gate-shaped building frames to each other temporarily by bracing and temporarily assembles them. However, when the temporarily assembled gate-shaped building frames are lifted, The assembly base is released from the locked state by its own weight and remains on the ground.
In this case, when the worker connects the gate-shaped building frames by bracing, if the operator cannot reach the upper end connection part of the gate-shaped building frame due to the shortness of the worker, The person can reach the above-mentioned connecting point by working on the upper surface (or a cloth board temporarily laid as appropriate above it) of the footrest having a predetermined height attached to the placing board. It will be.

[0016]

Embodiments of the present invention will be described below with reference to the drawings. The assembling method and the assembling table according to the present invention are applied to the scaffolding using the portal frame 100 shown in FIG. 11 described above.

First, referring to FIGS. 1 and 2, an assembly table 1 used in the method of assembling a scaffold according to the present invention will be described. The base body 2 of the assembly table 1 is a rectangular frame, A first placing plate 3 and a second placing plate 4, which extend in the longitudinal direction, are arranged in parallel on both sides thereof with a predetermined distance therebetween. The distance between the two mounting plates 3 and 4 is determined by the width of the portal frame 100 described above, that is, the leg portions 7a on both sides of the portal frame 100,
It corresponds to the mutual dimension of 7b (see FIG. 4).

In this embodiment, four locking protrusions (locking portions) 5 are projected on the upper surface of the first mounting plate 3 of the two mounting plates at regular intervals. Further, four foot mounts 6 are fixed in the illustrated example across the first mounting plate 3 and the second mounting plate 4. The footrests 6 are bent and formed in a U shape, and the shape of the upper surface portion 6a is set so as to have a predetermined height.

Next, a method of assembling the scaffold according to the present invention will be described. As a first step, as shown in FIG. 3, one leg portion 7a, which is a large-diameter cylinder portion of the plurality of gate-shaped building frames 100 arranged in parallel in the upper stage, is attached to the above-mentioned assembly table 1 placed on the ground. The locking protrusions 5 of the first mounting plate 3 are externally fitted and locked. At this time, the other leg 7b of each gate-shaped building frame 100 is placed on the upper surface of the second mounting plate 4 of the assembly table 1.

Then, the gate-shaped building frames 100 are connected to each other in a cross shape by braces 8 to temporarily assemble three rows of the upper stage assembly frames 10. In this case, the heights of the respective locking projections 5 of the assembly table 1 are set so that the bracing pin 9 fixed to the gate-shaped building frame 100 does not get in the way. Further, when the operator cannot reach the upper pin 9 of the gate-shaped building frame 100 due to the shortness of the operator's height, the operator has the upper surface 6a (which is the predetermined height portion of the footrest 6). Alternatively, the work of connecting the upper pin 9 and the braces 8 can be easily performed by placing the upper pin 9 and the braces 8 thereon.

Thereafter, if necessary, a wall connection using a clamp and a single pipe is attached to a predetermined position.

As a second step, as shown in FIG. 4, the temporarily assembled assembly frame body 10 for each gate-shaped building frame is lifted by a lifting device 11 such as a crane. As shown in FIG. 5, the suspension support member 12 used at this time includes eight suspension bodies 1 extending in the vertical and horizontal directions with respect to the support rod 13 extending in the vertical direction.
4 is fixed, and a hooking portion 15 on which a wire or a rope is hooked is attached to the central portion of the supporting rod 13 in the longitudinal direction.

The upper end of each gate-shaped building frame 100 is suspended and supported by the eight suspension bodies 14 via a flexible strip W such as a chain or a wire. After the suspension support is set, the cloth plate 16 is laid on the upper end of the gate-shaped building frame 100.

As a third step, as shown in FIG. 6, a plurality of rows of gate-shaped building frames 10 arranged in parallel in the middle tier in the same number as above.
0 is temporarily assembled on the ground by the braces 8 using the assembling table 1 to manufacture the three-stage middle stage assembly frame body 17.

The second step and the third step described above may be replaced with each other, the middle stage assembly frame 17 may be manufactured first, and then the upper stage assembly frame 10 may be lifted. In this case, in order to temporarily assemble the middle stage assembly frame body 17 on the ground, another separately prepared assembly base 1 is used.

As a fourth step, the upper stage assembly frame 10 is lifted above the temporarily assembled middle stage assembly frame 17 and the lifting device 11 is installed.
And the leg portion 7a of the upper stage assembly frame body 10 on the upper end portion 7c (7d) of each gate-shaped building frame 100 of the middle stage assembly frame body 17
(7b) is fitted and connected and fixed, and the upper middle stage assembly frame body 18
Is manufactured (see FIG. 6). After this, the middle gate-shaped building frame 100
The cloth plate 16 of is inserted and laid.

As a fifth step, as shown in FIG. 7, the connected upper middle stage assembly frame 18 is hoisted by the above-mentioned hoisting support member 12 and the lifting device 11, and stands by. At this time, as shown in the figure, the members X such as cloth plates and braces necessary for the work to be described later are taken into consideration in consideration of the weight balance and the like, and Place it on the upper surface and temporarily fix it with rubber.

In the sixth step, the same number of rows of the gate-shaped building frames 100 arranged in parallel at the lower stage are temporarily assembled on the ground by the braces 8 using the above-mentioned assembly table 1 and 3
The lower assembly frame body 19 of the row is manufactured.

In this case, the fifth step and the sixth step may be replaced with each other, and after the lower stage assembly frame body 19 is manufactured, the upper middle stage assembly frame body 18 may be lifted.

As a seventh step, the connected upper and middle assembly frame body 18 is lowered above the temporarily assembled lower assembly frame body 19, and the opposite end portions of both are connected and fixed to each other, and the upper middle and lower assembly frame body is assembled. Produce 20.

After this, as shown in FIG. 8, the three fixed upper and lower assembly frames 20 for connection are fixed as one unit and lifted by the above-mentioned suspension support member 12 and lifting device 11. Other upper, middle and lower assembly frames 2 installed on the ground
For 0, it will be fixed sequentially.

As shown in FIG. 9, as a procedure for connecting and fixing, the space S for one row is opened, the upper middle lower assembly frame 20 is connected upward, and the braces 8 in this space S are connected. The connection and the laying of the cloth plate 16 are performed by selecting the necessary braces 8 and the cloth plate 16 from the member X temporarily fixed to the cloth plate 16 in the central row of the middle stage assembly frame 17 as described above. The worker takes out the sheet and performs a predetermined work on the gap S.

By using the method of the present invention, the work of 210 to 240 square meters can be completed per person per day, which is about 120 square meters as compared with the conventional method (120 square meters per person per day). Work can be done twice as efficiently.

[0034]

Since the present invention is configured as described above, it has the following effects.

According to the scaffold assembling method of claim 1, the upper, middle, and lower gate-shaped building frames are temporarily assembled on the ground, and the gate-shaped building frames are assembled at appropriate timing. And, the connecting assembly frame is placed above the assembly frame existing on the ground, connected and fixed, and the assembly work of scaffolding is performed with the connecting assembly frame temporarily assembled in multiple rows and three stages as one unit. Therefore, the burden imposed on the worker is reduced, and the safety of work and the work efficiency are improved.

According to the assembling table of the second aspect, when the temporary assembling on the ground, each gate-shaped building frame can be temporarily set in a state of being erected at regular intervals, so that an operator on the ground can be easily installed. With the paddle, the work for connecting the gate-shaped building frames can be easily performed, and even a short worker can easily perform the connection work for the upper portion of the gate-shaped building frame.

[Brief description of drawings]

FIG. 1 is a perspective view of an assembly table used in a method of assembling a scaffold according to the present invention.

FIG. 2 is a plan view of the assembly table.

FIG. 3 is a front view showing a first step of the method for assembling a scaffold according to the present invention.

FIG. 4 is a side view showing a state in which the assembly frame body is lifted in the assembly method.

FIG. 5 is a plan view showing a suspension support member used for carrying out the assembly method.

FIG. 6 is a front view showing a second step and a third step of the assembling method.

FIG. 7 is a front view showing a fourth step and a fifth step of the assembling method.

FIG. 8 is a front view showing the final step of the assembling method.

FIG. 9 is a front view showing a state of a finishing stage of the assembling method.

FIG. 10 is a schematic view showing an example of a scaffold assembled by the above assembling method.

FIG. 11 is a side view showing a gate-type building frame used in the assembly method.

[Explanation of symbols]

 1 Assembly Table 3 1st Mounting Plate 4 2nd Mounting Plate 5 Locking Part (Locking Protrusion) 6 Foot Mounting Table 8 Braces 10 Upper Assembly Frame 16 Cloth Plate 17 Middle Assembly Frame 19 Lower Assembly Frame 20 Upper middle lower assembly frame 100 gate type building frame

Claims (2)

[Claims] 1. A method of assembling a scaffold for assembling a gate-shaped building frame in a plurality of columns in a vertical direction and a plurality of rows in a lateral direction, wherein a plurality of rows of gate-shaped building frames in a horizontal direction are temporarily placed and these are temporarily provided by bracing. The work of assembling and assembling the assembly frame body,
The middle and lower tiers should be performed independently on the ground, and first, the upper tier assembly frame should be placed above the middle tier assembly frame on the ground, and the opposite ends of both should be connected to assemble the upper middle tier. A frame body is manufactured, and then, the upper middle stage assembly frame body is placed above the lower stage assembly frame body existing on the ground, and the opposite end portions of both are connected to produce an upper middle lower stage assembly frame body, As a final step, a scaffold assembling method is characterized in that the scaffolds are assembled by treating the manufactured upper, middle, and lower assembly frames for three steps as one unit. 2. A mounting plate on which the legs of a plurality of rows of gate-shaped building frames are mounted, and the leg portions of the respective gate-shaped building frames which are provided above the mounting plates and are locked at regular intervals. A scaffolding assembly stand, comprising: a plurality of locking portions, and a footrest having a predetermined height fixed above the mounting plate.