JPH11117481A - Stair composing method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce cost and eliminate mistakes by using common members in composing straight stairs for going up and down straight and lower turning stairs bent perpendicularly at a lower end part. SOLUTION: Units are formed to correspond to necessary numbers of stairs for perpendicularly bending in lower turning stairs, and these units are selectively connected. An upper straight stair unit 1, a lower straight stair unit 2, and a lower turning stair unit 3 are prepared, and the selected one of the lower stair units 2, 3 is connected to legs 1a provided on the lower end side of the upper straight stair unit 1 to apply to straight stairs or lower turning stairs required.

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 straight staircase or a downward staircase used in an industrially produced building such as a prefabricated house.

[0002]

2. Description of the Related Art There are various types of stairs used for buildings in accordance with an ascending and descending form. Among them, a straight staircase that is configured so that the treads can be linearly arranged from the lower floor to the upper floor and can be raised and lowered linearly, and a few steps on the lower floor side are formed into irregular shapes so that they are almost at right angles There is a down-turn staircase configured to be able to ascend and descend.

[0003] In the case of a staircase applied to a prefabricated building, for example, a staircase such as a U-shaped staircase, the staircase is actually open.
As disclosed in Japanese Unexamined Patent Application Publication (KOKAI) No. 3 (see FIG. 4), three square blocks 51a to 51c having substantially the same height and the same width of the contact surface are provided.
Are arranged in an L-shape in plan view to form a base, a staircase body 52a having a triangular longitudinal section is installed above one corner block 51a, and the staircase body 52a is provided on the side surface of another corner block 51c. There has been proposed a unit staircase configured by installing another staircase main body 52b in parallel with the above. This technique is advantageous when applied to a U-shaped step that is symmetric in plan view. However, there is no idea in this technology that the straight staircase and the U-shaped staircase are shared.

Similarly to the above-mentioned technology, there is no idea that the straight stairs and the down-turn stairs applied to the prefabricated building are shared, and the stairs and the stairs are installed in the surrounding environment or in the surroundings in accordance with the target buildings. In general, they are individually designed in consideration of various problems such as interference with other members.

[0005]

As described above, since the straight staircase and the down-curved staircase are manufactured completely separately, the number of types of members increases, a large number of jigs are required for manufacturing members, and temporary stocks are required. For example, a lot of storage space is required, and a problem arises that a shipping instruction becomes complicated, and it is not easy to reduce the cost.

[0006] Further, since the manufacturing procedure is different for each stair, there is also a problem that the installer needs to be proficient.

Further, the shape of the constituent member differs for each step,
In addition, since the interference situation with other members installed in the vicinity is different, designers need to master many design standards in order to deal with these matters, and if an unskilled person designs, There is a problem that there is a risk of occurrence.

An object of the present invention is to provide a method of forming a staircase which can facilitate design by reducing the number of members and can reduce costs.

[0009]

According to the present invention, there is provided a method for forming a staircase, comprising: a straight staircase or a down-curved staircase; Prepare a lower straight stair unit and a lower curved stair unit that can be connected to the lower part of the upper straight stair unit, and select the lower straight stair unit to connect to the lower part of the upper straight stair unit when configuring a straight stair. In the case of forming a lower bending staircase, a lower bending staircase unit is selected and connected to a lower portion of the upper straight staircase unit.

[0010] In the above-described method of forming stairs, an upper straight stair unit, a lower straight stair unit and a lower curved stair unit are prepared in advance, and a lower straight stair unit or a lower curved stair unit selected according to a target stair is prepared. Is connected to the lower part of the upper straight stair unit to form a stair.

For this reason, regardless of whether the intended staircase is a straight staircase or a down-curved staircase, the upper straight staircase unit is used in common. Can be performed.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A preferred embodiment of the above-described step construction method will be described below with reference to the drawings. FIG. 1 is a view for explaining a method of forming a staircase according to the present invention, FIG. 2 is a view for explaining the structure of an interlocking portion between an upper unit and a lower unit, and FIG. 3 is a view for explaining a straight staircase and a downward bending staircase. .

In this embodiment, a straight staircase A shown in FIG.
When the downward projection stairs B are formed in which the plane projection shown in FIG.
By sharing the members, design, manufacture, and installation work can be easily performed without requiring a high level of skill.

In order to standardize the members constituting the steps A and B, attention is paid to the downward bending portion of the downward bending step B, and the downward bending portion and the straight step portion corresponding to the downward bending portion. And the members constituting the upper part are made a common unit, and by selectively combining these, it is possible to rationally configure the desired staircase.

That is, as shown in FIG. 1, an upper straight stair unit 1 as a constituent member common to each of the stairs A and B,
A lower straight staircase unit 2 attached to the upper straight staircase unit 1 to form a straight staircase A, and an upper straight staircase unit 1
The lower straight staircase unit 3 and the lower straight staircase unit 3 or the lower straight staircase unit 3 selected in accordance with the intended stairs are attached to the upper straight staircase unit 1 to prepare the straight staircase A. Alternatively, it is possible to configure a downwardly curved staircase B.

The distribution of the number of steps in each of the units 1 to 3 is not uniquely set, but is set based on the number of steps in the lower curved stair unit 3.

That is, as shown in the present embodiment, when the lower curved portion is constituted by two steps, the lower straight stair unit 2 and the lower curved stair unit 3 are respectively formed as two steps. The upper straight stair unit 1 is configured as a stair having a number of steps obtained by subtracting two steps from the total number of steps. Therefore, the lower curved stair unit 3
Is composed of three steps, the lower linear staircase unit 2 is also composed of three steps, and the upper linear staircase unit 1 is composed of the number of steps obtained by subtracting three steps from the total number of steps. It will be.

It is preferable that the upper straight staircase unit 1 can maintain a stable posture when the lower units 2 and 3 are attached. For this purpose, a leg 1a is provided at the lower end of the upper straight staircase unit 1, and the upper end is engaged with a support member (not shown) such as a beam provided on the skeleton. And an engaging member 1b for supporting.

Therefore, when the upper linear staircase unit 1 is carried into a preset stair position and the engaging member 1b is engaged with the supporting member of the frame, the lower leg 1a is placed on a supporting surface such as a floor or a beam. It is possible to maintain a stable posture regardless of the presence or absence of each of the units 2 and 3 arranged below.

Each of the lower units 2 and 3 is connected to the lower end of the upper straight stair unit 1. Upper straight staircase unit 1
When the lower units 2 and 3 are connected to each other, it is preferable to use the legs 1a in order to reduce the number of parts. Therefore, as shown in FIG. 2, a bolt hole 1c for screwing the connection bolt 4 is formed in the leg 1a. Each of the lower units 2 and 3 is provided with a bracket (3a) which comes into contact with the leg 1a and is fastened by the connecting bolt 4.

When the straight stairs A or the downward bending stairs B are formed by using the units 1 to 3 as described above, it is determined whether the target stairs are the straight stairs A or the downward bending stairs B, and the dimensions are determined. After confirming the specifications such as the above, the lower straight staircase unit 2 or the lower curved staircase unit 3 is selected for the upper straight staircase unit 1 according to the specifications. Then, the members necessary for forming the target straight staircase A or the downwardly curved staircase B are prepared and shipped to the building site.

At the construction site, regardless of whether the target staircase is the straight staircase A or the downward staircase B, since the upper straight staircase unit 1 is commonly used, the position of the leg 1a is constant. The construction of the floor or beam on which the leg 1a is placed becomes constant. By installing the carried-in upper straight staircase unit 1 and connecting the lower units 2 and 3 preselected and carried in to the unit 1, a desired staircase can be formed.

[0023]

As described above in detail, in the method of forming a staircase according to the present invention, when forming a straight staircase or a down-curved staircase, it is possible to share the upper straight staircase unit. Therefore, it is possible to minimize the number of storage locations when products are temporarily stocked and the number of jigs used for manufacturing, and to simplify shipping instructions. In particular, by realizing the common use of members, it is possible to expect a mass production effect, and it is possible to reduce costs.

By realizing the common use of the upper straight staircase unit, the construction procedure is substantially the same irrespective of the straight staircase or the down-curved staircase, so that special skill of the constructor is not required. Therefore, it is possible to reduce labor costs by employing unskilled workers, to eliminate construction errors, and to improve the construction speed by repeating the same work.

Similarly, even in the design department, it is possible to standardize the design standards, thereby eliminating design errors and shortening the design time.

[Brief description of the drawings]

FIG. 1 is a diagram illustrating a method of configuring a staircase according to the present invention.

FIG. 2 is a diagram illustrating a configuration of a joint between an upper unit and a lower unit.

FIG. 3 is a diagram illustrating a straight staircase and a down-curved staircase.

FIG. 4 is a diagram illustrating the configuration of a U-shaped unit staircase.

[Explanation of symbols]

 A Straight stairs B Lower bent stairs 1 Upper straight stair unit 1a Leg 2 Lower straight stair unit 3 Lower bent stair unit 4 Connecting bolt

Claims (1)

[Claims] 1. A method of constructing a straight staircase or a downwardly curved staircase, comprising: an upper linearly staircase unit having a leg at a lower portion; When preparing a straight staircase, select the lower straight stair unit and connect it to the lower part of the upper straight stair unit, and when configuring a lower bending stair, select the lower bending stair unit and select the upper straight stair unit A method for constructing a staircase, wherein the method is connected to a lower part of a staircase unit.