JPH0512423Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] The present invention relates to the structure of a staircase that is applied when forming a direct staircase in a staircase room of a large-wall structure building, etc., and is applicable to a prefabricated house, etc. Available.

[Conventional technology]

In general, stairs are constructed after the formation of structures such as walls, but when constructing these stairs, conventionally, stair constituent members such as step boards and recess boards are individually attached directly to the walls of the stairwell.

[The problem that the idea aims to solve]

However, in the conventional example described above, since the stair components are individually attached to the wall, the installation work is complicated and there is a problem that it takes one to two days to construct the stairs. Therefore, even after the structure is formed, until the stairs are constructed, it is necessary to hang a temporary ladder in the stairway or erect scaffolding on the outside of the building when going up and down between the first and second floors. However, those that use temporary ladders are dangerous because the footing is unstable, and those that use scaffolding require time to work because they must be outside the building. This causes the inconvenience of wasted information.

An object of the present invention is to provide a staircase structure that can shorten construction time.

[Means to solve the problem]

The present invention aims to unitize the stairs, which were conventionally individually attached to the wall of the stairwell, consisting of the treads, support plates on both sides of the treads, etc. It is constructed so that the dimensions between the boards are shorter than the dimensions between the walls of the stairwell, making it easier to attach the stairs to the stairwell. A stair unit is constructed by including a support plate that supports the staircase unit, and the dimension between the support plates of the stair unit is formed to be shorter than the dimension between the walls of the stairway to which the stair unit is attached, and the support plate and the wall are A receiving member is interposed between the upper edge side of the support plate and the wall to form a space between the upper edge side of the support plate and the wall for accommodating the end of the face material to be applied to the wall, and a receiving member fixed to the wall. It receives the lower edge of the support plate.

[Effect]

In the present invention configured as described above, the stair unit is assembled in advance from a plurality of steps, support plates, etc. in a factory or the like. During this assembly, the dimension between the support plates (width dimension of the staircase) is made shorter than the dimension between the walls of the staircase to which the staircase unit is to be installed.

Thereafter, the stair unit is transported to the site and installed in the stair room, but for this purpose, the stair unit is suspended from the second floor or the like into the stair room. At this time, as mentioned above, since the width of the staircase is shorter than the distance between the walls, the staircase unit is smoothly accommodated in the staircase.

After this storage, the stair unit is fixed to the wall of the stairway by screws, nails, etc.

For this fixation, reliable support and fixation is achieved by receiving the support plate with a receiving member fixed to the wall. In addition, by interposing a support beam between the wall and the wall, a gap is formed to accommodate the end of the panel to be applied to the wall, and the panel is accommodated in the gap. By doing this, we can improve the appearance by processing the edges of the facing material, and also avoid cracking of the facing material due to the load that would occur if the staircase unit was fixed to the wall through this facing material. Become.

In this way, by simplifying the treatment work for the wall facing material, it is possible to further shorten the construction time of the stairs.

〔Example〕

Hereinafter, one embodiment of the present invention will be described based on the drawings.

In FIG. 1, which shows the plane of the steps according to this embodiment, a staircase unit 3 is housed in a staircase room 2 which is made up of a space partitioned by two walls 1 made of wood-based panels. It spans the second floor panel 2A and the first floor. As shown in FIGS. 2 and 3, this stair unit 3 includes a plurality of treads 4, side beams 5 as support plates that support both sides of these treads 4, and these treads 4.
It is composed of a recessed plate 6 that closes the gap.
The stepped plate 4 is fitted into a tapered groove 5A formed inside the side beam 5, and is fixed from the outside with nails, fixing screws, etc. Between the lower wall of the tapered groove 5A and the lower surface of the stepped plate 4, the stepped plate 4 is inserted into the tapered groove 5.
A wedge member 7 fixed to the upper wall of A is fitted.
The recessed plate 6 has both sides aligned with the grooves 5B on both inner sides of the stringer 5, and its upper side aligned with the grooves 4A on the lower surface of the step plate 4.
The lower part thereof is arranged below the step board 4 and fixed to the back surface of the step board 4 or the surface of the recessed board support material 8 by means of screws (not shown).

The side girders 5 of the stairway unit 3 are formed so that the dimension L between their outer walls is shorter than the dimension S between the two walls 1 forming the stairwell 2. In addition, the bottoms of both side girders 5 are supported by side girder supports 9, and this side girder supports 9
is a support bar 10 that is fixed to the wall 1 and has a thickness of (S-L)/2, and this support bar 1.
Receiving member 1 for stringer support attached to the lower part of 0
It is composed of 1. The support beam 10 is fixed to the side beam 5 with fixing screws or the like.

A cross-based gypsum board 12 is interposed between the wall 1 and the stringer 5, and the thickness of the gypsum board 12 is approximately the same as the thickness of the support beam 10 of the stringer support member 9.

In this embodiment having such a configuration, first, the stair unit 3 is manufactured in a factory. Therefore,
As shown in FIG. 4, the pre-formed groove 5A of the stringer 4,
Insert the stepped board 4 and the recessed board 5 into 5B,
These are fixed to the side girder 4 with wedge members 7, fixing screws, etc.

Thereafter, as shown in FIG. 5, the stair unit 3 is housed between the walls 1 to which the side girder supports 9 have been attached in advance, using a crane or the like. In other words, 2nd floor floor panel 2A
Immediately after finishing laying, the two stringer supports 9 are placed facing each other at predetermined locations on the wall 1, and then the stair unit 3 is lowered from the top of the stairway 1, and the support members for the stringer supports 9 are placed. The bottom surface of the stringer of the stair unit 3 is brought into close contact with the top surface of the stairway unit 11. After this close contact, a gypsum board 12 is interposed between the stair unit 3 and the wall 1, and the stringer 5 is inserted from the inside of the stair unit 3 into the wall 1.
Fixed to. This fixation uses fixing screws,
By screwing in this screw, the wall 1 made of the wooden panel is drawn into the stair unit 3 side, and no gap is created between the stair unit 3 and the wall 1.

In order to make the content easier to understand, the number of stairs in the stair unit 3 in FIG. 5 is smaller than that in FIG. 1.

According to this embodiment, the step plate 4, the stringer 5
The stairs are assembled into a unit by assembling the stairway board 6, and the dimension L between the stringers of this stairway unit 3 is determined.
Since it is formed to be shorter than the dimension S between the walls of the stairway 2, the stairs can be easily attached to the stairway 2, and the construction time of the stairs can be shortened. Specifically, the construction of stairs, which conventionally took 1 to 2 days, can now be completed in 20 hours by two people.
This can be done in about a minute. Moreover, since the step plates 4, stringers 5, etc., which are the constituent members of the stair unit 3, can be processed and assembled in a factory, the quality accuracy of the stair unit 3 is improved. Furthermore, in this embodiment, when the stair unit 3 is housed in the stairwell 1, the stringer supports 9 are used, so that the mounting accuracy is improved and safety can be ensured. Furthermore, since the gypsum board 12 is interposed between the stringer 5 of the stair unit 3 and the wall 1, the space between them will not be blocked and the appearance will not be spoiled, and fire protection can be improved. .

In addition, in the above embodiment, the stringer supports 9 were used when storing the stairway unit 3 in the stairwell 2, but in the present invention, it is not necessarily necessary to prepare two stringer supports 9. , as long as the stair unit 3 is brought into contact with one of the walls 1 and the stair unit 3 is supported on the other wall 1 side, only one stringer support member 9 may be used. Further, unlike the stringer support member 9, the support beam 10 and the support member 11 do not need to be integrated, and in short, any structure is sufficient as long as the stair unit 3 is fixed to the wall 1 via the support beam 10 and the support member 11.

Further, in the present invention, the member interposed between the wall 1 and the stair unit 3 may be a facing material or a decorative board instead of the gypsum board 12.

Further, although the support plate is used as the stringer 5, if the upper surface of the stepped plate 4 is carpeted, a stringer may be used instead of the stringer 5.

Furthermore, when installing the stair unit 3, the upper end of the side beam 5 may be secured to the second floor panel 2A or the second floor cross beam of the stairway 2.

[Effect of idea]

According to the present invention as described above, by making the stairs into units and making the width dimension of the unitized stairs smaller than the wall-to-wall dimension of the stairwell,
It can be easily installed in a staircase, and the support beam and support member can protect the wall surface material, which has the effect of further shortening the construction time of the stairs.

Regarding this invention, the conditional expression [IPC (International Patent Classification) = E04F11/10 + stairs] * [FK (free keyword) = As a result of searching for prior applications using the term "Support + Support Plate + Both Sides", there was no structure corresponding to the present invention, which revealed the novelty of the present invention in the field.

[Brief explanation of the drawing]

Fig. 1 is a plan view of one embodiment of the present invention;
The figure is an enlarged sectional view taken along the - line in Figure 1,
Figure 3 is a sectional view taken along the - line in Figure 2,
FIG. 4 is an exploded perspective view illustrating the assembly of the stair unit, and FIG. 5 is an exploded perspective view illustrating the construction of the stair unit. 1... Wall, 2... Staircase, 3... Stair unit, 4... Step board, 5... String girder as support plate, 9
...Stringer receiving material, 12...Gypsum board.

Claims (1)

[Scope of utility model registration request] A stair unit is composed of a plurality of treads and support plates that support both sides of these treads, and the dimension between both support plates of this stair unit is determined by the distance between both walls of the stairwell to which the stair unit is installed. It is formed to be shorter than the dimension, and a retainer is interposed between the support plate and the wall, and the end of the face material applied to the wall is accommodated between the upper edge side of the support plate and the wall. A structure for stairs, characterized in that a lower edge of the support plate is received by a receiving member fixed to the wall.