JPH0827984A - Installing construction work method of indoor stairs in unit building - Google Patents

Abstract

PURPOSE:To shorten work time at a job site, and enable installing construction work without relying on a technical expert when indoor stairs are installed so as to stride over a building upper floor unit and a building lower floor unit. CONSTITUTION:Indoor stairs 4 where a part to be arranged inside of a building first floor unit and a part to be arranged inside of a building second floor unit 2 are integrally formed, are housed inside of the building first floor unit, and an upper end part of the indoor stairs 4 is supported with the building first floor unit so as to be vertically rotatable, and a lower end part of the indoor stairs 4 is temporarily fixed. After the building second floor unit 2 housing the indoor stairs 4 is stacked on a building lower unit 1, temporary fixation of the lower end part of the indoor stairs 4 is released, and the indoor stairs 4 are downward rotated, and are moved up to a position to stride over the building second floor unit 2 and the building first floor unit, and the lower end part of the indoor stairs 4 is fixed to the indoor stairs installed on the building first floor unit.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of installing and constructing indoor stairs in a unit building.

[0002]

2. Description of the Related Art In recent years, there has been a construction method as described in JP-A-55-61656 and JP-A-55-81966, in which a staircase that has been assembled in a factory is brought in and attached to a building. It has come to be adopted many times. This method is very effective in shortening the work period on site.

By the way, in a unit building constructed by arranging a plurality of building units horizontally and vertically and connecting them to each other, when an indoor staircase is installed so as to straddle between two adjacent building units, the staircase is arranged vertically. It is divided into two and consists of an upper staircase unit and a lower staircase unit, each staircase unit is attached to the building unit in advance, and the building staircase units are connected to each other before the upper staircase unit and the lower staircase unit are connected. Method has been adopted (Japanese Patent Application Laid-Open No. 5-987).
No. 07).

[0004]

However, in the above-mentioned conventional mounting construction method, the errors such as the intervals and heights of the building units generated when the building units are connected locally are absorbed. In order to do so, it is necessary to partially resize the parts of the upper staircase unit and the lower staircase unit locally, or to install the part that is arranged at the joint of the building unit locally. There is a problem that it takes a long time and it is difficult for the installation work to be carried out unless it is an engineer.

In view of the above problems, the present invention straddles an upper floor unit of a building which constitutes an upper floor portion of a unit building and a lower floor unit of a building which constitutes a lower floor portion of the unit building. It is an object of the present invention to provide a method capable of shortening the work time at the site when installing the indoor staircase in a unit building and allowing the installation work even by a non-technical person.

[0006]

In order to achieve the above object, in the method of mounting and mounting an indoor staircase in a unit building according to the present invention, a building upper floor unit and a lower floor unit constituting an upper floor portion of the unit building are provided. In the construction method, the indoor stairs are attached to the unit building so as to straddle the lower floor unit of the building, which is arranged inside the upper floor unit of the building and inside the lower floor unit of the building. The interior staircase integrally formed with the above-mentioned part is housed inside the upper floor unit of the building, and the upper end unit of the indoor staircase is supported by the upper floor unit of the building so as to be vertically rotatable and the lower end portion of the indoor staircase is temporarily After fixing, stacking the building upper floor unit in which the indoor staircase is housed on the building lower floor unit that constitutes the lower floor part of the unit building, release the temporary fixing of the lower end of the indoor staircase. The indoor stair is moved to a position straddling the upper floor units and buildings under floor unit building by rotating the downward and a method of fixing the lower end of the chamber stairs building under floor unit. Note that, here, the upper floor indicates the upper floor that is vertically adjacent, and the lower floor indicates the lower floor that is vertically adjacent. In other words, the upper floor shows the second floor,
The lower floor may indicate the first floor, the upper floor may indicate the third floor or higher, and the lower floor may indicate the second floor or higher.

[0007]

According to the method of mounting an indoor staircase in a unit building of the present invention, a portion arranged inside a building upper floor unit and a portion arranged inside a building lower floor unit are integrally formed in a factory. If the indoor stairs are stored inside the upper unit of the building, and the upper unit of the building supports the upper end of the indoor stairs to be vertically rotatable and the lower end of the indoor stairs is temporarily fixed, After stacking the upper building unit on the lower building unit,
The temporary fixing of the lower end of the indoor stairs is released, and the indoor stairs are rotated downward to move to a position straddling the building upper floor unit and the lower building unit, and the lower end of the indoor stairs is moved to the lower building unit. All you have to do is fix it on.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A method for mounting indoor stairs in a unit building according to an embodiment will be described in detail below with reference to FIGS. In the present embodiment, when the indoor stairs are installed so as to straddle the building first floor unit that constitutes the first floor portion of the unit building and the building second floor unit that constitutes the second floor portion of the unit building, The mounting construction method will be described.

FIG. 1 is a view showing a state in which an indoor staircase is stored in a unit on the second floor of a building, FIG. 2 is an enlarged view of a main part II of FIG. 1, and FIG.
2 is a view in the direction of arrow III in FIG. 2, FIG. 4 is an enlarged view of the main part IV of FIG. 1, FIG. 5 is a view showing a state where the installation and installation of the indoor stairs is completed, and FIG. In the figure, 1 is a building 1st floor unit, 2 is a building 2nd floor unit, 3 and 4 are indoor stairs,
The line AA indicates the boundary between the building 1st floor unit 1 and the building 2nd floor unit 2.

When the indoor stairs 4 are attached to a unit building, first, the indoor stairs 4 are housed inside the unit 2 on the second floor of the building, and the upper end of the indoor stairs 4 is placed on the unit 2 on the second floor of the building. The lower end of the indoor stairs 4 is temporarily fixed while being supported so as to be vertically rotatable.

The indoor stairs 4 are integrally formed with a portion arranged inside the unit 2 on the second floor of the building and a portion arranged inside the unit 1 on the first floor of the building.
And both ends of the riser plate 42 with a pair of right and left sasara girders 43, 4
It is constituted by supporting it by 3. An L-shaped metal fitting 46 having a guide pin 47 is fixed to the lower ends of the sassar girders 43, 43.

The support of the upper end of the indoor stairs 4 is
As shown in FIG. 2 and FIG. 3, a pair of U-shaped bearing plates 22 is provided on the side surface of the floor beam 21 of the second floor unit 2 of the building.
Is fixed by welding etc., and the sasara girder 4 of the indoor stairs 4
A bearing fitting 44 is fixed to the upper end portion of 3 by welding or the like, and the bearing plate 22 and the bearing fitting 44 are rotatably coupled by a shaft member 23.

Further, as shown in FIG. 4, the temporary fixing of the lower end of the indoor stairs 4 is performed by the floor girder 2 of the unit 2 on the second floor of the building.
4, the L-shaped metal fitting 25 is fixed, and the L-shaped metal fitting 45 is also fixed to the lower end portion of the sasara girder 43.
5, 45 are fixed to the wooden board 26 with a fixing tool such as a screw or a nail. That is, the temporary fixing of the lower end portion of the indoor stairs 4 can be released only by removing the fixing tool that fixes the L-shaped metal fittings 25 and 45 to the wooden coffin 26.

Next, the building second floor unit 2 to which the indoor stairs 4 are attached is carried to the site, and as shown in FIG. 5, it is placed on the building first floor unit 1 which constitutes the first floor portion of the unit building. After stacking and connecting with the building 1st floor unit 1, the lower end of the indoor stairs 4 is temporarily fixed, and the indoor stairs 4 is rotated downward to make the building 2nd floor unit 2 and the building 1st floor unit 1 The indoor stairs 4 is moved to a position where the indoor stairs 4 are straddled, and the lower end of the indoor stairs 4 is fixed to the upper end of the indoor stairs 3 attached to the building 1st floor unit 1.

The indoor stairs 3 attached to the building 1st floor unit 1 have their upper ends fixed to the wall 11 of the building 1st floor unit 1 and their lower ends to the floor 1 of the building 1st floor unit 1.
It is fixed to 2. In addition, in order to reduce the number of work steps at the site, it is preferable that the indoor staircase 3 is also attached to the building 1st floor unit 1 in the factory.

As shown in FIG. 6, the lower end of the indoor staircase 4 is fixed to the L-shaped metal fitting 31 previously fixed to the upper end of the indoor staircase 3 attached to the unit 1 of the building.
This is performed by engaging the guide pin 47 of the L-shaped metal fitting 46 fixed to the lower end of the indoor staircase 4.

That is, in the installation construction method of the indoor stairs 4 in the unit building of the present embodiment, in the field, after the building second floor unit 2 is stacked and coupled on the building first floor unit 1, the indoor stairs 4 are connected. The temporary fixing of the lower end is released, and the indoor stairs 4 is rotated downward, so that the building 1
It suffices to move the unit 1 to the position over the second-floor unit 2 and fix the lower end of the indoor stair 4 to the upper end of the indoor stair 3. Therefore, it is possible to shorten the work time on site, and moreover, even if it is not a technician, it is possible to perform installation work on site.

In addition, when performing extension / renovation or relocation. By rotating the indoor stairs 4 upward, the indoor stairs 4 can be stored again inside the building second floor unit 2, so that the indoor stairs 4 can be removed from the building first floor unit 1 and the building second floor unit 2, It is not necessary to disassemble the stairs 4.

Although the embodiment of the present invention has been described in detail above with reference to the drawings, the specific configuration is not limited to this embodiment, and there are design changes and the like within the scope not departing from the gist of the present invention. Also included in the present invention. For example, in the embodiment, the case where the indoor stairs are mounted so as to straddle the building first floor unit and the building second floor unit has been described, but when mounting is performed so as to straddle the building second floor unit and the building third floor unit, It may be applied when the unit is installed so as to straddle units on the upper floors. Moreover, in the embodiment, the lower end of the indoor stairs is fixed to the upper end of the indoor stairs attached to the building first floor unit, but the lower end of the indoor stairs is directly fixed to the wall of the building first floor unit or the like. You may.

[0020]

As described above, according to the method of constructing a staircase in a unit building of the present invention, an indoor staircase is performed after the upper floor unit of the building is stacked on the lower floor unit of the building. The lower end of the indoor stairs is fixed to the lower unit of the building by releasing the temporary fixing of the lower end of the indoor stairs and rotating the indoor stairs to the position where it straddles the upper unit and the lower unit of the building. Therefore, it is possible to shorten the work time at the site, and moreover, even if not a technician, it is possible to carry out the installation work at the site.

[Brief description of drawings]

FIG. 1 is a diagram showing a state in which an indoor staircase is housed in a unit on the second floor of a building.

FIG. 2 is an enlarged view of a main part II of FIG.

FIG. 3 is a view on arrow III in FIG.

FIG. 4 is an enlarged view of a main part IV of FIG.

FIG. 5 is a diagram showing a state in which installation work of indoor stairs is completed.

6 is an enlarged view of a main part VI of FIG.

[Explanation of symbols]

 1 Building 1st floor unit 2 Building 2nd floor unit 3 Indoor stairs 4 Indoor stairs

Claims (1)

[Claims] 1. A construction method in which an indoor staircase is attached to a unit building so as to straddle an upper-floor unit of a building which constitutes an upper floor of a unit building and a lower-floor unit of a building which constitutes a lower floor. The interior staircase in which the portion disposed inside the upper floor unit of the building and the portion disposed inside the lower floor unit of the building are integrally formed is housed inside the upper floor unit of the building. The upper end of the indoor stairs is rotatably supported on the lower end of the indoor stairs, and the lower end of the indoor stairs is temporarily fixed. After stacking the stored building upper floor units, release the temporary fixing of the lower end of the indoor stairs and rotate the indoor stairs downward to move to a position that straddles the upper building unit and the lower building unit. Allowed, the mounting method of constructing the indoor stairs in the unit building, characterized by securing the lower end of the chamber stairs building under floor unit.