JP2664543B2 - Stepboard unit for stairs - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a step board unit constituting each step of a staircase, and more particularly, to a step board unit in which the step board is formed of concrete.

[0002]

2. Description of the Related Art Conventionally, as a step board unit in which a step board is formed of concrete, a riser plate is also generally formed of concrete integrally with the step board.

As described above, a step board unit in which a step board and a riser board are integrally formed of concrete is disclosed in Japanese Utility Model Publication No. 55-5 / 55.
It is also adopted in the stairs described in No. 86,
In this staircase, a plurality of the above-mentioned step board units are arranged in parallel between the girders.

[0004]

In the above conventional stepboard unit, since the riser and the stepboard are integrally formed of concrete, the stepboard and the riser cannot be divided and constructed. Therefore, at the time of construction, the step board and the riser board must be moved and supported together, and there is a problem that a large load is required and the burden on the operator is large.

In recent years, stairs have been unitized. In a unit building, stairs are assembled in a factory in advance, and the assembled stairs are transported to a site in a state where the stairs are mounted in a building unit. Is being improved so that less power is used, but even in such a case, the connection between the upper and lower floors of the stairs is done on site, so the worker must manually install the stepboard unit. Have to be carried into the building, and there is still room for improvement.

The present invention has been made in view of the above-mentioned conventional problems, and has as its object to reduce the burden on an operator at the time of construction by making it possible to separately construct a step board and a riser.

[0007]

SUMMARY OF THE INVENTION In order to achieve the above-mentioned object, a stepboard unit of a staircase according to the present invention has a vertical surface.
A riser plate tile is adhered to the side surface of the shaped steel, it is pre-formed concrete separately from the該蹴inclusive plate, the upper surface
And the side where the above-mentioned riser is fixed
Surface, and an elongated body having an upper surface for supporting the step board.
Ends are supported and fixed to the sasara girder via brackets
Are those composed of a that frame.

[0008]

The stepboard unit of the staircase of the present invention has a vertical surface.
A riser with tiles attached to the sides of the shaped steel , and a separate riser made of concrete in advance and
Stepboard on which tiles are stuck and the side to fix the riser
And a long body having an upper surface for supporting the step board and the
Since both ends are composed of a frame that is supported and fixed to the slab by a bracket, when assembling the stairs, the frame is first fixed to a predetermined position, and then
The step board and the riser can be divided and constructed, and the weight of the riser can be reduced.

Further, since the tiles are attached to the surfaces of the riser and the step board, the appearance can be improved.

[0010]

Embodiments of the present invention will be described below.

FIG. 1 is a perspective view showing the uppermost step of a staircase in which the stepboard unit A of this embodiment is employed, and FIG. 2 is a sectional view showing the uppermost step of the staircase.

The step board unit A of the present embodiment comprises a frame 1
And a step board 2 and a riser 3.

The frame 1 has side plates 12, 12 fixed to both ends of a hat steel 11 laid horizontally in a vertically standing state, and two plates 13, 13 on the upper surface of the hat steel 11. It is fixed to. The plates 13, 13 are provided side by side in the axial direction of the hat steel 11, and the hat steel 11 is closed at both ends and the middle except for the middle part by the two plates 13, 13. I have.
Holes 113 and 114 are formed in the bottom wall 111 and the side wall 112 at both ends and the middle of the hat steel 11, respectively. The frame 1 is fastened and fixed to a bracket C in which a bottom wall 111 of the hat steel 11 is fixed to the upper end of the slab B. For this fixing, a hole 113 formed in the bottom wall 111 of the hat steel 11, the bolt 4 and the nut 5 are used.

The step board 2 is made of concrete, and tiles 21a and 21b are embedded in the surface. The step board 2 is bonded and fixed to the plates 13 and 13 of the frame 1 with an adhesive for concrete metal. The step board 2 is formed to have substantially the same length as the hat steel 11 of the frame 1.
Between the side plates 12, 12.

The riser plate 3 is formed by welding a shaped steel 31 and a channel steel 32 in order to reduce the weight. Also,
In the riser plate 3, the side surface of the channel steel 32 forms a riser surface, and a tile 33 is adhered to the surface with an elastic epoxy-based adhesive. Note that this tile 33
Is preferably the same material as the tiles 21a and 21b embedded in the step board 2. And this riser 3
The channel steel 32 is fastened and fixed to the side wall 112 of the hat steel 11. In addition, this fixation uses the side wall 1 of the hat steel 11.
The hole 114 formed in the hole 12, the bolt 6 and the nut 7 are used.

In the figure, D is a floor plate, and E is a step board unit having the same structure as a conventional structure in which a step plate and a riser plate are integrally formed of concrete.

Next, the operation of the embodiment will be described.

When assembling the step board unit A of this embodiment on the uppermost step of the stairs, first, the frame 1 is fixed to the bracket C fixed to the slab girder B. 3 is fixed, and finally, the step board 2 is fixed to the frame 1. When the riser plate 3 is fixed to the frame 1, the riser plate 3 is placed on the lower step board unit E, and a waterproof sheet F is pasted on the lower step board unit E in advance. It is desirable that the riser plate 3 be placed so as to crush the waterproof sheet F.

As described above, the step board unit A of the present embodiment
Can separate the step board 2 and the riser board 3.
That is, when the step board 2 and the riser 3 are fixed to the frame 1, the step board 2 and the riser 3 can be moved and supported separately. The force required is smaller than in the prior art that had to be performed, and the burden on the operator is reduced. In particular, since the riser plate 3 is formed of the shaped steel 31 and the channel steel 32 in order to reduce the weight, the work of fixing the riser plate 3 to the frame 1 can be facilitated.

Further, in the step board unit A of this embodiment, since the frame 1 also functions as a reinforcing material, it is possible to prevent a decrease in bending rigidity due to changing the riser plate 3 from concrete to metal.

Although the embodiment of the present invention has been described in detail with reference to the drawings, the specific configuration is not limited to this embodiment, and there may be changes in the design without departing from the gist of the present invention. Are also included in the present invention.

For example, in the embodiment, the staircase in which the stepboard unit of the present invention is adopted as the uppermost step is shown. However, the stepboard unit of the present invention can be adopted in any position of the staircase.

[0023]

Further, in the embodiment, the step plate is fixed to the frame by bonding, and the riser plate is fixed to the frame with bolts and nuts. However, these fixing means are not limited to the embodiment.

[0025]

As described above, the stepboard unit of the staircase according to the present invention has a structure in which a tile is provided on the side of a shaped steel having a vertical surface.
A riser on which a riser is affixed , a stepboard having a tile formed on the upper surface thereof, which is separately formed in advance from concrete, and a side surface on which the riser is fixed; Support
A long body with an upper surface
Since it is composed of a frame supported and fixed to the girder through the stairs, when assembling the stairs, first fix the frame in a predetermined position, then split the step board and the riser board And the weight of the riser can be reduced. Moreover, since the tiles are stuck on the surfaces of the riser and the step board, the appearance can be improved.

[Brief description of the drawings]

FIG. 1 is a perspective view showing the uppermost step of a staircase employing a step board unit of the present embodiment.

FIG. 2 is a cross-sectional view showing an uppermost step of a staircase employing the step board unit of the present embodiment.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Frame 112 Side wall (side surface of frame ) 13 Plate (upper surface of frame) 2 Step board 3 Raised plate 31 L-shaped steel 32 Channel steel 33 Tile (decorative material)

Claims (1)

(57) [Claims] 1. A tile is attached to a side of a shaped steel having a vertical surface.
A riser plate that is, the該蹴inclusive plate preformed concrete separately, their
A step board with a tile attached to the top of the board, a side surface for fixing the riser, and a step for supporting the step board
It is a long body with a surface and both ends are
A stepboard unit for stairs, comprising a frame supported and fixed to a truss beam .