JP3074235B2 - Method of constructing temporary scaffold for steel stairs and support fitting used for the method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for constructing a temporary scaffold for a steel staircase and a support fitting used for the method.

[0002]

2. Description of the Related Art Conventionally, a steel stair has been installed at a desired position on a structure, and then concrete having a desired height has been cast on the tread. It is made lower by the installation height. That is, since the upper end of the riser protrudes above the tread, it is very difficult for the worker to pass through the tread, and the safety is lacking. There is disclosed a curing material having a shape in which a formwork, a pier, or the like, which is appropriately processed in size, is laid, or a riser portion is covered and a step is eliminated.

[0003]

In the above conventional method,
It is extremely troublesome to process formwork, piers, etc. on site according to the size of the tread, and to bind and attach each of the processed formwork to the riser with iron wire etc. Work time is required. Even when using a formwork, a pier or the like, or the above-mentioned curing material, it must be once removed from the riser at the time of placing concrete, and at the time of placing, there is a problem that it is not allowed to pass during the curing period.

[0004]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned conventional problems, and an object of the present invention is to make it possible to easily construct a temporary scaffold along a steel staircase and to add concrete to a tread portion. It has been desired to create a means for constructing a temporary scaffolding that allows workers to pass safely even during casting and curing without casting.

As means for this, a projecting piece formed at the upper end of the vertical piece of the L-shaped bracket main body is attached to the upper end of the kick-up section at the base end of the tread surface, and the hooking piece formed at the tip of the horizontal piece is treaded. At least two or more support brackets attached to the upper end of the riser at the end of the surface are arranged side by side at appropriate intervals, and a scaffold is mounted on a horizontal piece of these support brackets. A method of constructing a temporary scaffold for steel stairs, characterized by being continuously attached, and a projecting piece projecting outward at an upper end of a vertical piece of an L-shaped bracket main body, projecting upward at a tip of a horizontal piece. Each of the fixing pieces of the scaffolding plate is formed, and a substantially U-shaped hooking piece which is opened downward on the lower surface of the tip of the horizontal piece is arranged above the upper end of the kick-up part which the horizontal piece attaches to the hooking piece. Characterized in that the It is intended to solve the conventional problems by providing a support fitting steel stairs temporary scaffolding, characterized in that bored a nail hole in place of the pieces.

[0006]

An embodiment of the present invention will be described in detail with reference to the drawings. First, a description will be given of a configuration of a metal support for a temporary scaffold for steel stairs. FIG. 1 is a perspective view showing an embodiment of the present invention, FIG. 2 is a side view showing an embodiment of the present invention, and 1 is a bracket main body in which a steel plate having an appropriate width and thickness is formed into an L shape.
A protruding piece 12 that protrudes outward from the upper end of the vertical piece 11 as appropriate
On the other hand, a fixing piece 14 of a scaffold plate protruding upward is integrally formed at the end of the horizontal piece 13, and through holes 15 and 16 for nailing are formed in appropriate places of the fixing piece 14. Set up.
Next, a substantially U-shaped latching piece 17 which is opened downward is provided on the lower surface of the tip of the horizontal piece 13. At this time, the end of the horizontal piece 13 is bent so as to project downward, and the bending is performed. By providing the hooking piece 17 in the portion that has been set, the horizontal piece 13 can be disposed above the upper end of the kick-up section attached to the hooking piece 17.

FIGS. 3 and 4 are a perspective view and a side view, respectively, showing another embodiment of the present invention. The metal body 2 formed in an L-shape includes a protruding piece 22, a fixing piece 24, and a hook. The piece 27 is integrally formed, and may be formed of steel or resin by a processing method such as casting or injection molding.

Next, a method of constructing a temporary scaffold for a steel stair using the support metal will be described in detail. 5 and 6 are a perspective view and a sectional view showing an embodiment of the method for constructing a temporary scaffold according to the present invention. First, the projecting piece 12 at the upper end of the vertical piece 11 of the metal fitting main body 1 of the support fitting of the present invention is attached to the upper end of the riser C at the base end of the tread B of the steel stair A, and the riser at the tip of the tread B. D is attached to the upper end of the horizontal piece 13 with the locking piece 17 at the tip end of the horizontal piece 13, and is similarly juxtaposed at appropriate intervals in the same manner.
The scaffolding plate E is placed on top of it. Next, scaffold E
So that it does not fall off the horizontal piece 13 of the support bracket 1,
Temporary scaffolds are fixed by hitting nails through through holes 15 and 16 formed in the fixing piece 14 formed at the tip of the horizontal piece 13 and continuously attaching a support bracket and a scaffold plate to each tread in the same procedure. To build. After that, concrete G is cast on the tread portion B, and after curing, the supporting bracket is removed when the temporary scaffold is removed. In this case, the U-shaped hooking piece of the supporting bracket 1 is attached to the surface of the cast concrete. Since the inside piece of 17 is buried in concrete, those marks are filled with mortar and finished.

[0009]

As described above in detail, according to the method for constructing a temporary staging for steel stairs of the present invention and the support fitting used for the method, it is possible to easily and reliably follow the steel stairs. Since a temporary scaffold can be constructed, work efficiency can be improved and worker safety can be ensured. In addition, it is possible to obtain a practically useful method of constructing a temporary scaffold for steel stairs, which is excellent in workability without removing the temporary scaffold even during the curing and curing period, and a supporting bracket used for the construction method. it can.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an embodiment of a support fitting according to the present invention.

FIG. 2 is a side view showing an embodiment of a support fitting according to the present invention.

FIG. 3 is a perspective view showing another embodiment of the support fitting according to the present invention.

FIG. 4 is a side view showing another embodiment of the support fitting according to the present invention.

FIG. 5 is a perspective view showing an embodiment of a method for constructing a temporary scaffold according to the present invention.

FIG. 6 is a sectional view showing an embodiment of a method for constructing a temporary scaffold according to the present invention.

[Explanation of symbols]

 1, 2 bracket main body 11 vertical piece 12, 22 projecting piece 13 horizontal piece 14, 24 fixing piece 15 through hole 16 through hole 17, 27 hanging piece A steel stairs B tread portion C riser portion D scaffold plate E nail F mesh Bar G Concrete

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) E04G 1/36 E04F 11/12 E04F 11/16-11/16 501

Claims (3)

(57) [Claims] 1. A projecting piece formed at an upper end of a vertical piece of an L-shaped bracket main body is attached to an upper end of a riser at a base end of a tread portion of a stair, and a latching piece formed at a tip of a horizontal piece is attached to the tread portion. At least two or more support fittings attached to the upper end of the riser at the tip are juxtaposed at appropriate intervals, placed on a horizontal piece of the support fittings with a scaffolding plate erected, and placed on each tread in the same procedure. A method of constructing a temporary scaffold for steel stairs, which is attached continuously. 2. An L-shaped metal fitting body having a vertical piece at the upper end of a vertical piece and a fixing piece of a scaffold plate projecting upward at the tip of the horizontal piece, and a tip of the horizontal piece. A temporary scaffold for a steel staircase, characterized in that a substantially U-shaped hooking piece opened downward on the lower surface of the staircase is formed so that the horizontal piece is disposed above the upper end of a riser portion attached to the hooking piece. Support bracket. 3. The supporting bracket for a steel staircase according to claim 2, wherein a nail hole is formed at an appropriate position of the fixing piece.