JPH11247390A - Stairs - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide stairs having a beautiful external appearance and excellent construction properties. SOLUTION: Footboards 1 are laid over between opposite horizontal step parts 3a in a pair of strings 3 and fixed and a riser 2 is provided between the fore end part of an upper footboard 1A and the rear end part of a lower footboard 1B and fitted to each of them. Each footboard 1 is set on and fixed to the horizontal step parts 3a. As for each riser 2, the upper end 2a thereof is brought into contact with the lower side of the fore end part of the upper footboard 1A, the back 2b thereof with a vertical part 3b and the front 2c of the lower end part thereof with the rear end face of the lower footboard 1B, and they are fixed. A guide part 4 for guiding fitting of the riser 2 is provided at the lower end part of the vertical part 3b and a space S is formed between the guide part 4 and the back of the riser 2.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wooden stair in a wooden building such as a wooden house, and more particularly to a stair having a beautiful appearance and excellent workability.

[0002]

2. Description of the Related Art
As a staircase in a wooden building such as a wooden house, a Sasara girder staircase configured by attaching a step board and a riser plate between a pair of Sasara girders having a stepped edge is known. As a method of constructing this sasara girder stairs, after installing only each step board, a method of mounting a riser between each step, or sequentially installing a step and a riser from top to bottom There are methods and the like, but in the conventional stairs, the steps and / or
Or it takes time and effort to install the riser,
There were problems such as deterioration in finish.

In addition, the stairs in a conventional wooden building are as follows:
Generally, construction is completed at a relatively early stage of construction, and at the time of various works, it is cured using various materials such as resin film and plywood to prevent damage and dirt. The method of (1) has a problem that it takes time to remove the curing material, and it is impossible to completely prevent damage and dirt.

Therefore, there is a construction method in which only the steps are attached to form a temporary staircase for work, and in the latter half of the construction work, the steps are replaced with decorative materials for the steps and a riser is attached to complete the original steps. According to such a construction method, it is possible to reduce the trouble of removing the curing material and the waste of resources. However, even in such a construction method, it takes time and effort to attach the above-mentioned riser to the temporary stairs including only the stepboard, and furthermore, during the work, the stepboard and the riser are damaged. There were problems such as sticking.

Accordingly, it is an object of the present invention to provide a staircase having a beautiful appearance and excellent workability.

[0006]

According to the first aspect of the present invention, there are provided a plurality of horizontal steps on which the ends of the steps are placed and fixed, and a plurality of vertical sections on which the risers are abutted and fixed. A step board is stretched and fixed between the opposing horizontal step sections of the pair of Sasara girders having a riser plate, and a riser plate is attached between a front end of the upper step board and a rear end of the lower step board. In the stairs, each of the step plates is placed and fixed on the horizontal step portion, and each of the riser plates has an upper end abutting on a lower surface of a tip end portion of the upper step plate, and a rear surface thereof has the vertical portion. And a lower end portion front surface thereof is fixed by being abutted on a rear end surface of the lower step plate, and a guide portion for guiding installation of the riser plate is provided at a lower end portion of the vertical portion. Providing a staircase wherein a space is formed between the guide portion and the back surface of the riser. Ri, are those that have achieved the above objects.

According to a second aspect of the present invention, the guide portion includes:
The stairs according to claim 1, wherein when the riser is mounted, the lower end of the riser is guided to a predetermined fixed position. It has been achieved.

According to a third aspect of the present invention, the distance between the upper end of the guide portion and the upper rear end of the lower step board is greater than the thickness of the riser plate. The above object has been attained by providing the stairs according to item 1.

According to a fourth aspect of the present invention, there is provided the method of constructing a staircase according to the first aspect, wherein each of the step boards is fixed to the pair of Sasara girders to form a temporary staircase for work and then fixed. In addition, the present invention provides a method of constructing a staircase, wherein each of the riser plates is mounted between the respective step plates.

According to a fifth aspect of the present invention, there is provided the method for constructing a staircase according to the first aspect, wherein each of the riser plates is fixedly integrated with the lower surface of the tip of the upper step plate, and the riser plate is provided. And an upper step board, which is integrated, is sequentially attached to the pair of Sasara girders arranged opposite to each other in an upward direction from below.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of a staircase according to the present invention will be described below with reference to FIGS. Here, FIG.
FIG. 2 is a cross-sectional view schematically showing a staircase of the present embodiment, and FIG.
3 is an enlarged cross-sectional view showing a part of the staircase in FIG. 1, FIG. 3 is a cross-sectional view showing a state in which only the step board in the staircase in FIG. 1 is attached, and FIGS. It is explanatory drawing for demonstrating the construction method of 1 stairs.

In the staircase of this embodiment, as shown in FIGS. 1 and 2, a plurality of horizontal steps 3a on which the ends of the step board 1 are placed and fixed, and the riser 2 are abutted and fixed. Multiple vertical parts 3b
The step board 1 is stretched over and fixed between the opposing horizontal step parts 3a of the pair of Sasara girders 3 (only one of which is shown), and as shown in FIG. Riser 2 between the lower end plate 1B and the rear end
Each step board 1 is mounted and fixed on the horizontal step section 3a, and each of the riser boards 2 has an upper end 2a contacting the lower surface of the distal end portion of the upper step board 1A. Touched,
The rear surface 2b is in contact with the vertical portion 3b, and the lower front surface 2c is in contact with and fixed to the rear end surface of the lower step board 1B. A guide portion 4 for guiding the mounting of the plate 2 is provided.
A space S is formed between the riser 2 and the rear surface of the riser 2.

Each of the above-mentioned Sasara girders 3 has a horizontal step portion 3a for placing and fixing the step plate 1 and a vertical portion 3b for contacting and fixing the riser plate 2.
Have a stair-like upper edge portion alternately arranged, and the lower edge portion has an inclined linear shape. In the stairs of the present embodiment, such a pair of Sasara girders 3 (only one is shown) are disposed so as to face each other, and a step board is provided between the opposing horizontal step portions 3a of the pair of Sasara girders. 1 is stretched and fixed, and the riser 2 is mounted between the front end of the upper step board and the rear end of the lower step board so as to bridge between the opposed vertical portions 3b. . Such a configuration of the staircase of the present embodiment is the same as that of the conventional Sasara girder staircase. Although not shown, each Sasara girder 3 is fixed in a face-to-face manner by a fixture such as a screw or a nail on a plaster board fixed to a structural material such as a pillar or a stud.

Thus, each of the step boards 1 is fixedly mounted on the horizontal step section 3a at both ends thereof. That is, the end of each step board 1 placed on the horizontal step 3a is fixed to the horizontal step 3a by screwing a screw, a nail or the like from above. As shown in FIG. 3, each step board 1 is fixed such that its rear end face 11 is located forward of the position P of the vertical portion 3b by the thickness of the riser plate 2. As shown in FIG. 2, a groove 12 is formed in the lower surface of the leading end of each of the step boards 1, and an upper end 2a of a later-described riser 2 fits into the groove 12. I have.

As shown in FIG. 2, each of the risers 2 is
The upper end 2a is in contact with the lower surface of the distal end portion of the upper step board 1A, and the rear surface 2b is connected to the vertical portion 3
b, and the lower end front surface 2c thereof is in contact with the rear end surface of the lower step board 1B.
It is hung between and fixed. In addition, the upper step board 1
A is a step board 1 provided above each riser plate 2, and the lower step board 1B is a step board disposed below each riser plate 2. Plate 1.

Each of the sasara girders 3 has a lower end of each of the riser plates 2 attached to a lower end of each of the vertical portions 3b.
and a guide portion 4 for mounting guide that enables the lower guide plate 1B to be smoothly inserted into the rear of the lower step plate 1B fixed to a. As shown in FIG. 2, each of the guide portions 4 is formed by cutting out a lower end portion of the vertical portion 3b, and includes a vertical edge portion 41 formed in parallel with the vertical line L, and an angle α with respect to the vertical line L. Is 30 degrees to 9
0 °, preferably 45 ° to 60 °. Then, in a state where the lower step plate 1B is attached by the guide portion 4, as shown in FIG.
A gap D having a width greater than the thickness of the riser 2 is formed between the upper end 42a of the inclined edge 42 and the upper rear end 11a of the lower step board 1B, and the riser 2 is mounted. In the state, a predetermined space S is formed between the guide portion 4 and the back surface 2b of the riser plate 2.

An example of the method for constructing the stairs according to the present embodiment will be described below. The construction method of the stairs is an embodiment of the construction method of the stairs according to claim 4 of the present invention. First, a pair of Sasara girders 3, each step board 1, and each riser board 2 are precut, and further, a necessary baseboard 5 and the like are prepared. Then, the plaster boat is fixed to pillars and studs provided on the assumption of the wall surfaces on both sides of the stairs, and the wall surface for fixing the Sasara beam 3 is formed. Next, the pair of Sasara girders 3 is
The stage plates 1 are fixed to the plaster boat so as to face each other so as to face each other, and each step board 1 is bridged between the opposing horizontal step portions 3a of the pair of sasaras girders 3 arranged in such a manner. The stairs of the present embodiment can be safely used as temporary stairs for work in a state where each step board 1 is placed and fixed between a pair of sasara girders 3, that is, as shown in FIG.

Then, in the latter half of the construction, for example, as shown in FIG. 4, the risers 2 are sequentially mounted and fixed from below. At this time, the lower end of each riser 2
Each step board 1 is fixed to the rear end face of the step board 1 with a nail or a screw.
Then, the baseboard 5 is mounted on the end of each of the step boards 1 and the end of each of the risers 2 fixed to the pair of Sasara beams 3 in this manner. The baseboard 5 covers and hides fixing tools such as nails used when fixing the step boards 1. In this way, the stairs of this embodiment are completed with a beautiful appearance. still,
A step board decorative board is provided on each of the step boards 1 as necessary,
Further, other finishing processes are performed.

According to this stair construction method, the lower end of each riser 2 can be easily inserted behind the lower step board 1B by the guide 4 and the lower end of the riser 2 can be inserted by the guide 4. Since the portion is guided to a predetermined fixed position shown in FIG. 2, the mounting of each riser plate 2 is extremely simple and the construction time is reduced.

Next, another method of constructing the stairs of this embodiment will be described below. The construction method of the stairs is an embodiment of the construction method of the stairs according to claim 5 of the present invention. In the same manner as in the above-described stairs construction method, a pair of sasaras girders 3, each step board 1, and each riser board 2 are pre-cut, and further, necessary baseboards 5 and the like are prepared. In addition, a plaster boat is fixed to pillars or studs provided on the assumption of the wall surfaces on both sides of the stairs, and the wall surface for fixing the Sasara girder 3 is formed on both sides of the space forming the stairs. Then, a pair of Sasara girders 3
Are fixed on the plaster boat so as to face each other and face each other.

In the construction method of the stairs, as shown in FIG. 5, the upper end of each riser plate 2 is fitted and fixed in the groove 12 formed on the lower surface of the tip of the corresponding upper step plate 1A. Then, one in which the riser plate 2 and the upper step plate 1A are integrated is prepared. And riser 2 and upper step board 1A
Are sequentially attached to the pair of Sasara girders 3 (only one of which is shown) facing from top to bottom. At the time of this attachment, both ends of each step board 1 are fixed to the horizontal step section 3a with nails or screws, and the lower end of each riser 2 is fixed to the rear end face of each step board 1 with nails or screws. Attach to 11. And, as in the construction method described above, the baseboard is attached and fixed,
A step board decorative board is provided on each of the step boards 1 as necessary,
Other finishing processes are performed.

According to the construction method of the stairs, the lower end of each riser plate 2 can be easily inserted behind the lower step plate 1B already fixed by the guide portion 4, and furthermore, the riser is performed by the guide portion 4. The lower end of the plate 2 is guided to a predetermined fixed position shown in FIG.
The attachment of the integrated member 6 with A is extremely simple. In addition, since the step board 1 and the riser 2 are sequentially attached from the lower step, work efficiency is high and safety is also achieved. In addition, the curing at the factory can be thoroughly performed in advance. The integration of the riser plate 2 and the upper step board 1A is preferably carried out in a factory or the like, but may be carried out on site. Further, a temporary step board may be provided and used as a temporary stair for work, and the temporary step board may be removed and replaced at the time of finishing.

According to the stairs of the present embodiment, since the guide portions 4 are provided on each of the pair of Sasara beams 3,
After using as a temporary staircase for work in a state where only each step board 1 is fixed, a riser 2 is easily and quickly mounted between each fixed step board 1 to complete the stairs with beautiful appearance. Can be. In addition, it is possible to perform the work by sequentially mounting the integrated riser plate 2 and the upper step board 1A from below, thereby improving work efficiency and safety, and shortening the work time. it can. In addition, each riser 2,
Alternatively, when the integrated member 6 of the riser plate 2 and the upper step board 1A is mounted, since the guide portion 4 is provided, the riser plate 2 is provided.
Of the riser 2 and the step board 1 due to strong contact between the lower end portion of the step board 1 and the step board 1 is prevented. Therefore, the stairs have a beautiful appearance.

Further, in a state where only the step board is fixed by the guide section 4, that is, in a state before the riser board 2 is mounted, the step board 1 fixed to the upper end of the guide section 4 is fixed. Since a gap D having a width larger than the thickness of the riser plate 2 is formed between the rear end upper portion 11a and the riser plate 2, or an integrated product 6 of the riser plate 2 and the upper step plate 1A. Can be mounted more smoothly.

Although the embodiments of the stairs and the method of constructing the steps according to the present invention have been described above, the present invention is not limited to the above-described embodiments, and can be appropriately modified without departing from the spirit of the present invention. For example, the stairs of the present invention may be in any form, such as straight stairs without a landing, straight stairs with a landing, turn-around stairs, and round stairs. Also, the above Sasara digit 3
May be composed of one member, or a plurality of members may be continuously provided so that their ends are continuous. In addition, one Sasara girder 3 may be provided on one wall surface, or may be provided so as to straddle a plurality of wall surfaces.

Further, the guide portion 4 is provided with the vertical edge portion 41.
And the inclined edge 42, the riser plate 2 having an arc-shaped edge above the vertical edge 41, an arc-shaped edge formed as a whole, or the like. Any shape can be used as long as the shape can improve the mounting property. Further, the forming material and dimensions of each of the other members, and the processing and the like for improving the strength and the attachability applied to each of the members may be appropriately changed without departing from the spirit of the present invention. It goes without saying that you can do it.

[0027]

According to the present invention, it is possible to provide a staircase having a beautiful appearance and excellent workability and a method for constructing the staircase.

[Brief description of the drawings]

FIG. 1 is a sectional view schematically showing one embodiment of a staircase of the present invention.

FIG. 2 is an enlarged sectional view showing a part of the stairs in FIG. 1;

FIG. 3 is a cross-sectional view showing a state in which only a step board in the stairs in FIG. 1 is fixed.

FIG. 4 is an explanatory diagram for explaining an example of a construction method of the stairs of FIG. 1;

FIG. 5 is an explanatory diagram for explaining another example of the method of constructing the stairs of FIG. 1;

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 step board 11 rear end face 1A upper step board 1B lower step board 2 riser 2b back 3 sasara girder 3a horizontal step 3b vertical 4 guide 4 41 vertical edge 42 inclined edge 5 baseboard 6 riser and upper Integrated with board

Claims (5)

[Claims] 1. A pair of opposed horizontal steps of a pair of Sasara girders having a plurality of horizontal steps on which end portions of a step board are mounted and fixed, and a plurality of vertical sections to which a riser is abutted and fixed. In the stairs in which a step board is hung and fixed in between, and a riser is attached between a leading end of the upper step board and a rear end of the lower step board, each of the step boards is the horizontal Each of the riser plates is mounted and fixed on a step portion, and the upper end of the riser plate is in contact with the lower surface of the tip end of the upper step plate, the back surface is in contact with the vertical portion, and the front surface of the lower end portion is the lower portion. At the lower end of the vertical portion, a guide portion for guiding the installation of the riser plate is provided, and the guide portion and the back surface of the riser plate are provided at the lower end of the vertical portion. A staircase characterized by a space formed between the steps. 2. The guide according to claim 1, wherein the guide section guides a lower end of the riser to a predetermined fixed position when the riser is mounted. Stairs. 3. The staircase according to claim 1, wherein a distance between an upper end of the guide portion and an upper rear end of the lower step board is larger than a thickness of the riser. 4. The method for constructing a staircase according to claim 1, wherein each of the step boards is fixed to a pair of the Sasara girders to form a temporary staircase for work, and between the fixed step boards. A method for constructing a staircase, wherein each of the above-mentioned risers is mounted. 5. The method for constructing a stair according to claim 1, wherein each of the riser plates is fixedly integrated with the lower surface of the tip of the upper step plate, and the riser plate and the upper step plate are integrated. A method for constructing a staircase, comprising sequentially attaching the slabs to the pair of Sasara girders arranged opposite to each other from below to above.