JPH028993Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to scaffolding used for finishing construction of steel stairs, and more specifically, a work platform is suspended from the bottom surface of the landing on each floor of the steel staircase, and scaffolding boards are stretched between the work platforms. This article relates to finished scaffolding for steel stairs.

Because the staircase inside the building has a slope, it is not easy to erect finishing scaffolding.

That is, the conventional simple structure in which cloth boards are placed between a plurality of stepladders has the disadvantage that the scaffold assembly is not sufficiently stable.

Also, although large-scale scaffolding specifically for stairwells can be installed with a certain degree of stability in the scaffolding,
It takes a lot of time and effort to set up scaffolding,
Additionally, once the scaffolding was erected, it remained in place for a long period of time, which obstructed access to the upper and lower floors.

Furthermore, since both of the above-mentioned scaffolds are temporarily fixed to the landing floor and the stairway, there is an inconvenience that the floors and walls located below the scaffold must be wiped down during finishing work.

The present invention was devised in view of the above problems, and the scaffolding is constructed along the slope of the stairway, making assembly and disassembly work easy, increasing the efficiency of finishing the stairs, and improving stability. Aims to provide superior finishing scaffolding.

An embodiment of the present invention will be described below with reference to the drawings.

Figure 1 shows a hanging hardware 1 and an arm 4.
It is an explanatory view showing a state where etc. are attached.

The hanging hardware 1 includes a base column 2 and a support column 3 made of pipe materials, etc.
is formed from. At the upper end of the base pillar 2, the base pillar 2
A fixing fitting 5 is attached for hanging from the reinforcing material 6 on the lower surface of the landing floor.

And, approximately in the center of this base pillar 2 is a bracket 7.
is welded to the bracket 7, and the upper end of the support column 3 is pivotally connected to the bracket 7. Further, clamps 9, 9 are fixed to the lower ends of the base column 2 and the lower ends of the support column 3, respectively, so as to grip the arm 4. The support 3 is opened in a state where it moves away from the base 2, and the arm 4 is gripped by the clamp 9, so that the hanging hardware 1 is formed into a substantially Y-shape.

FIG. 2 is an enlarged view of section X in FIG. 1.

Locking holes 61, 61 are pre-drilled in the reinforcing members 6, 6 stretched on the lower surface of the landing floor 8 of the steel staircase. The base column 2 is suspended from the landing floor 8 by inserting the fixing fitting 5 at the upper end of the base column 2 into the locking hole 61 of the reinforcing member 6.

In this case, a locking protrusion 51 is provided at one end of the fixture 5 to prevent it from falling off. The other end of the fixture 5 passes through the base column 2 and is fixed by welding.

In addition, in order to fix it more firmly, the upper end of the base pillar 2 is crushed into a flat shape as shown in Fig. 3, and the fixing metal fitting 5 is
It is also possible to use bolts V and nuts N instead.

As shown in FIG. 4, a fixing fitting 5' having locking protrusions 51' and 51' at both ends can be slid into the insertion hole 21 provided at the upper end of the base column 2 by the thickness of the reinforcing member 6. and the fixing metal fitting 5' is bored into the reinforcing material 6.
It is also possible to hang it by hanging it in the letter-shaped locking hole 61'. In this case, the locking hole may be shaped like a keyhole.

In the manner described above, yet another hanging hardware is also suspended, forming a pair of hanging hardware 1,1. Then, the arms 4, 4 of the hanging hardware 1, 1 are supported by connecting materials 12, 12, and the connecting materials 1
A shelf board 10 is mounted between 2 and 12. As a result, one workbench A is formed. Similarly, a workbench B is also configured on the landing on the upper or lower floor.

It should be noted that there are cases where the workbenches A and B face the stairs, that is, where the support 3 of the hanging hardware 1 is installed closer to the stairs than the base pillar 2, and where it is installed in the opposite direction. shall be determined as appropriate based on the size of the landing, the slope of the stairs, etc.

In this embodiment, a case will be described in which workbenches A and B both face the stairs.

FIG. 5 is a side view of the finishing scaffold in a hanging arrangement.

A pair of cloth pipes 11, 11 are installed between the work benches A and B at a slope substantially equal to the slope of the stairs, and these cloth pipes 11, 11 are supported by a tie material 12. Then, a scaffolding board 13 is stretched between these hanging work platforms A and B and on the connecting materials 12, 12, . . . .

Furthermore, a non-slip 14 is appropriately attached to the scaffold board 13 to stabilize the scaffolding of the builder.

As shown in the plan view of FIG. 6, approximately 1/2 of the workbench A is connected to cloth pipes 11, 1 from the workbench B, which is located on the lower floor from the landing where the workbench A is suspended.
1, and the remaining 1/2 is configured to receive cloth pipes 11, 11 from the workbench located on the upper floor.

Next, the steps for assembling and dismantling the finishing scaffold for steel stairs of the present invention will be explained.

A locking hole 61 is pre-drilled in a reinforcing member 6 stretched on the lower surface of a landing floor 8 of a steel staircase.

Then, attach the fixing metal fitting 5 at the upper end of the base column 2 to the locking hole 6.
1.

In this way, the base pillar 2 is suspended from the lower surface of the landing floor 8. Then, the support 3 is opened so as to be separated from the base 2, and the arm 4 is gripped with the clamps 9, 9 at the lower ends of the base 2 and the support 3, respectively, so that the hanging hardware 1 is formed into a Y-shape and is suspended. ing. Similarly, another hanging hardware 1 is also suspended with the above configuration. A shelf board 10 is mounted on the arms 4, 4 of the pair of hanging hardware 1, 1, and a connecting material 12 is appropriately spanned as needed.

As described above, the workbench is suspended from one landing floor 8. A workbench is also suspended from the other landing floor 8.

The cloth pipes 11, 11 are bridged between these two workbenches, the connecting material 12 is placed on top of the cloth pipes 11, and the cloth pipe 1
Supports between 1 and 11. And this binding material 1
Scaffolding board 13 is stretched over 2. As a result, the scaffold board 13 is stretched at a slope substantially equal to the slope of the stairs between both landings on which the work platforms are formed. Furthermore, a non-slip 14 is appropriately installed on the scaffold board 13.

In addition, as shown in Figure 5, in order to ensure the safety of workers, handrails or pipes 1 to prevent rolling should be installed as necessary.
5, 15, and 15 can be appropriately combined and attached.

Furthermore, the tie material 12 can be fixed to the stair side plate 16 with a clamp to prevent horizontal shaking.

The scaffold of the present invention is assembled by the above-mentioned method. Incidentally, the connection between the cloth pipe, the connecting material, and the connecting materials can be carried out using a special clamp or wire.

To dismantle the scaffold assembled as described above, it is sufficient to follow the procedure opposite to the assembly procedure.

Then, the fixing metal fitting 5 that was inserted last is removed from the locking hole 61 of the reinforcing member 6, and the disassembly is completed.

As described above, the finished scaffold for steel stairs of the present invention is different from conventional scaffolding in that the work platform is firmly suspended by using reinforcing materials stretched under the landing floor of each floor.

Moreover, since the scaffolding is formed by stretching scaffolding boards between the workbenches, the scaffolding is stable and the safety of finishing workers is increased.

Furthermore, since the scaffolding boards are installed at a slope that is approximately the same as the slope of the stairs, it is easy to finish the bottom surface of the landing and the stair slab, and the assembly and dismantling of the formwork is also simple, making it convenient for diversion. Furthermore, it has excellent practical effects in the finishing construction process.

[Brief explanation of the drawing]

Fig. 1 is a side view of the hanging hardware 1 suspended via the reinforcing material 6 on the lower surface of the landing floor 8 and the fixing fittings 5, Fig. 2 is an enlarged view of the X part in Fig. 1, and Fig. The figure shows bolts V and nuts N instead of fixing metal fittings 5.
A partially omitted side view of another embodiment screwed using
FIG. 4 is a partially omitted perspective view of still another embodiment of the engagement portion between the base column 2 and the reinforcing member 6. FIG. 5 is a side view of the finished scaffold suspended inside the staircase. FIG. 6 is a partially omitted plan view of the finished scaffold suspended inside the staircase. 1... Hanging hardware, 2... Base pillar, 3... Support column, 4
...Brace, 5,5'...Fixing metal fittings, 6...Reinforcement material,
61, 61'... Locking hole, 8... Landing floor, 10
... Shelf board, 13 ... Scaffolding board, 16 ... Stair side board,
A, B... Hanging workbench.

Claims (1)

[Scope of Claim for Utility Model Registration] Finished scaffolding for steel stairs consisting of work platforms formed at the bottom of the landing and at the bottom of the landings on the upper or lower floors, and scaffolding boards erected between the work platforms. The workbench is suspended by pushing a fixing fitting provided at the upper end of the base column through a locking hole of a reinforcing material stretched on the lower surface of the floor of both landings, and the workbench is suspended from the lower end of the base column. A pair of hanging hardware is formed by gripping the arms with the lower ends of the pillars pivoted approximately at the center of the base pillar, and each is formed by supporting a connecting material and mounting a shelf between the arms of the hanging hardware. , A pair of cloth pipes is installed between the two work platforms, and the two cloth pipes are supported by a connecting material, and a scaffold board is placed on the connecting material at a slope approximately equal to the slope of the stairs provided between the two landings. Scaffolding for steel stairs characterized by being installed at an equal slope.