JPH04216762A - Staircase construction - Google Patents

Abstract

PURPOSE:To promote construction efficiency by placing walls to three sides except the central and a skeleton side of a dog-leg stair to make it as a unit, piling up units, and joining the walls to form staircases of a house having a plurality of floors. CONSTITUTION:Walls 3 and 4 are placed to both ends of the front of a dog-leg stair A and, at the same time, a wall 2 is provided at the central part to form a stair unit U. After that, the unit U is piled up, and the walls 2, 3 and 4 are jointed with each other to form staircases of a house having a plurality of floors. According to the constitution, mounting work of the staircase can be simplified.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a staircase structure in which a staircase can be formed vertically and neatly by stacking staircase units, and is also useful for improving workability.

0002

2. Description of the Related Art For example, in multi-story housing complexes, wooden or steel stairs are provided to connect the upper and lower floors. Stairs like this can be assembled by processing wood on site, or
Alternatively, it was formed by assembling steel stringers, steps, etc. to the frame of the house.

0003

[Problems to be Solved by the Invention] However, those that are processed on-site require workers, which is not easy to secure, and is also poor in workability. In addition, when steel stringers or the like are assembled, the structure is complicated, and installation requires a great deal of effort, which delays the construction period.

[0004] The present invention is based on placing the upper stair unit on each wall of the lower stair unit, so that staircases for multi-story houses can be stacked and easily constructed on the same site. The purpose is to provide a floating staircase structure.

[0005]

[Means for Solving the Problems] In order to achieve the above object, the stair structure of the present invention includes a lower stair portion extending from the lower floor;
A folded staircase in which the lower staircase is adjacent to the lower staircase in parallel and extends upward through a folded part, an inner wall that runs along the adjoining part, and a wall that extends above and below the inner wall. A wall on both sides of the staircase part and along the sides of the upper and lower staircase parts, and a back wall that connects the side walls and runs along the back surface of the folded part, and each wall part, A plurality of stair unit bodies whose floor surface height is between the floor surface of the lower floor and the floor surface of the upper floor connected by the return staircase are placed on each of the walls of the lower stair unit body, and each of the upper stair unit bodies. It is formed by placing a wall.

[0006]

[Function] A folded staircase in which a lower staircase and an upper staircase are connected via a folded part, an inner wall, a wall along the sides of the upper and lower staircases, and a folded staircase of the folded part. A multi-story house can be constructed by placing a plurality of stair unit bodies each having a back wall along the rear surface and each wall of the upper stair unit body on each of the walls of the lower stair unit body. form a staircase.

[0007] Accordingly, since the stair unit body is used, there is no need to process various stair members, attach steps, etc. at the construction site, and the work can be simplified.

Furthermore, since the upper staircase unit is placed on the lower staircase unit, staircases for a multi-story house can be formed within the same site, and the site can be used efficiently.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

[0010] In the figure, the staircase structure includes a turn-around staircase A,
A stair unit body U comprising middle, side, and back walls 2, 3, and 4 is connected to each wall body 2, 3, and 4 of the lower stair unit body U1.
Each wall body 2a, 3a, 4a of the upper staircase unit body U2
In this embodiment, by placing the steps, a staircase of a house such as a three-story apartment building is formed.

The inner wall 2, the side wall 3, and the back wall 4 are made of rectangular plates made of decoratively painted plywood, concrete board, etc.; It is narrower than Body 3. The height of each of the walls 2, 3, and 4 is made equal to the inter-floor height H between the lower floor surface F1 and the upper floor surface F2 connected by the return staircase A. Also, floor surfaces F1 and F2
As schematically shown in FIG. 1, this is formed by pouring, for example, concrete into a frame structure consisting of a foundation F of a house and a pillar C extending from the foundation F with beams D-.

As illustrated in FIG. 2, the lower stair unit body U1 is constructed by aligning the upper and lower ends of the vertical side walls 3 facing parallel to each other and connecting them with the back wall 4. A lower stair portion 5 extending from the lower floor and an upper stair portion 6 extending upward to the upper floor parallel to and adjacent to the lower stair portion 5 are provided on the O-shaped base UA via a folded portion 7. The above-mentioned turn-around staircase A is installed.

[0013] The lower staircase part 5 is connected to the upper and lower staircase parts 5 and 6.
A stepped portion 20 is pre-bridged between the inner wall 2 and the side wall 3 which are parallel to the side wall 3 along the adjacent portions B which are different in height from each other. As a result, the side wall 3 runs along the side surface of the lower step 5, sandwiching the inner wall 2 and the lower step 5. Further, the folded portion 7 is provided at the upper end of the lower staircase portion 5.

The folded portion 7 forms a bent portion of the staircase, and is disposed between the walls 3 on both sides with its rear surface along the inner wall 4. Note that the folded portion 7
forms a recessed portion 21 extending from the edge of the inner wall 2 and a plurality of substantially triangular step portions 22, and is provided in advance on the U-shaped base body UA.

The upper staircase section 6 has approximately the same structure as the lower staircase section 5, and is sandwiched between the side wall 3 along the side surface and the inner wall 2, and its upper end is The uppermost recessed portion 23 is raised so as to be flush with the upper end surface of the wall 3 on the side and the inner wall 2.

A handrail 40 is attached to the inner wall 2 and the side wall 3 that sandwich the lower staircase portion 5.

The upper stair unit body U2 also includes a wall body 3 on the side along the side surface of the stair portion 5 below the lower stair unit body U1 and the inner wall body 2, as illustrated in FIG. Except for this, it has substantially the same configuration as the stair unit body U1 below. That is, the wall body 3a1 on the side along the side surface of the staircase part 5 below the upper stair unit body U2 has a trapezoidal handrail part 41A with a handrail 41 attached to the upper end, and the inner wall body 2a has a trapezoidal handrail part 41A attached to the upper end. The upper part of the edge facing the wall 4a is diagonally cut out, and a short handrail 42 is provided on the upper surface of the cutout. Note that a triangular handrail portion 43, for example, as shown by a dashed line in FIG. 3, is fixed to the horizontal upper surface of the inner wall 2a using appropriate fittings. Furthermore, a handrail 44 of the upper staircase part 6 of the lower staircase unit body U1 is attached to the wall body 3a on the side along the side surface of the upper staircase part 6 and the inner wall body 2a.

FIG. 1 shows a three-story building in which the walls 2a, 3a, 4a of the upper stair unit U2 are placed on the walls 2, 3, 4 of the lower stair unit U1. This shows how a turn-back staircase is formed in a house.

The lower stair unit body U1 is placed on the foundation F and fixed by bolting the angle-shaped mounting bracket 30, for example, and the upper stair unit body U2 is lifted by a crane or the like. , is placed on the lower stair unit body U1, and is bolted to the mounting bracket 31. Therefore, the number of floors of a multi-story house can be formed by stacking the stair unit bodies U, and the efficiency of on-site construction can be improved.

Note that the screw holes 45 into which the bolts inserted into the bolt insertion holes of the mounting fittings 30 and 31 are screwed are provided in advance by embedding metal fittings with screw holes in each of the walls 2, 3, 4, etc. It is being Further, the mounting bracket 30 is firmly fixed to the foundation F using, for example, a hole-in anchor.

[0021]

[Effects of the Invention] As described above, the stair structure of the present invention includes a side wall, a back wall connecting the side wall, and an inner wall along the adjacent portions of the upper and lower staircase sections. A staircase is formed by placing a plurality of staircase unit bodies comprising the above-mentioned stairs on each of the walls. Therefore, a multi-story staircase can be formed above the site where the lower staircase unit body is arranged, and the site can be used effectively, and the on-site construction can be simplified and work efficiency can be improved.

[Brief explanation of the drawing]

FIG. 1 is a sectional view showing an embodiment of the present invention.

FIG. 2 is a perspective view illustrating a stair unit body of the present invention.

FIG. 3 is a perspective view illustrating the upper stair unit body.

[Explanation of symbols]

2. Inside wall 3 side wall 4. Back wall 5 Lower staircase section 6 Upper staircase section 7 Folding part A　Turn back stairs B Adjacent part U Stair unit body

Claims (1)

[Claims] Claim 1: A turn-back staircase in which a lower staircase extending from the lower floor and an upper staircase extending upward parallel to the lower staircase are provided via a folding part, and the staircase extends along the adjacent part. The inner wall, the inner wall and the upper and lower stairs are interposed between them, and the side walls along the sides of the upper and lower stairs are joined together and on the back of the folded part. A plurality of stair unit bodies each having a back wall along which the stairs are connected, and each wall having a floor surface height between the floor surface of the lower floor and the floor surface of the upper floor connected by the above-mentioned turn-back staircase. A stair structure formed by placing each wall of the upper stair unit on each of the walls.