JP2024014633A - Wall surface staircase - Google Patents

Abstract

To provide a wall surface staircase that can be easily and inexpensively installed with a desired slope without being affected by the angle of a wall surface.SOLUTION: A wall surface staircase 1 of the invention comprises a fixed member 11, a support member 12 and a holding member 13, and it comprises a plurality of brackets 10 consisting of one end 11a of the fixed member 11 connected to one end 12a of the support member 12, the other end 11b of the fixed member 11 connected to one end 13a of the holding member 13 and the other end 12b of the support member 12 connected to the other end 13b of the holding member 13, a tread plate portion 21 and a kicking plate portion 22, and it comprises a plurality of steps 20 in a substantially L-shape in a side view and a pair of rails 30 stretched over each of the support members 12 of the plurality of brackets 10, and the fixed member 11 of the brackets 10 is fixed to a wall surface W in a staircase shape at a predetermined interval, and the plurality of steps 20 are arranged on the pair of rails 30 stretched over the support members 12 of the bracket 10.SELECTED DRAWING: Figure 1

Description

The present invention relates to a wall staircase installed on a wall such as a retaining wall.

Conventionally, various types of stairs installed on a wall surface such as a retaining wall have been disclosed (see, for example, Patent Document 1 and Patent Document 2). The slope installation staircase disclosed in Patent Document 1 includes a pair of frames arranged in parallel, a step suspended from the frames, a column erected on the frame, and a step supported by the column. In the staircase consisting of a handrail, the step has a track plate whose both sides are bent vertically, and the track plate has a pivot support for rotatably supporting the frame. , and a plurality of positioning holes are penetrated so as to form an arc shape centered on the shaft support, and the frame is installed with a constant inclination angle corresponding to the inclination of the slope. In this step, one positioning hole is selected from among the plurality of positioning holes so that the step is always horizontal regardless of the inclination of the slope, and a bolt is inserted into the positioning hole and the frame. It is characterized in that it is fixed to the frame.

According to the staircase for installation on a slope disclosed in Patent Document 1, the angle of the rotatably supported step can be freely adjusted according to the condition of the slope to be installed, and a uniform staircase can be pre-installed. Even if it were manufactured, it would be possible to deal with various situations, and it would be possible to provide stairs for installation on slopes at low cost.

Further, the stair steps disclosed in Patent Document 2 are for forming a cantilever type staircase on the wall by attaching a plurality of them to the wall, and the stair steps are for forming a cantilevered staircase on the wall. A support part projects from the upper part in a cantilevered manner with its longitudinal direction facing forward, a step plate part is formed on the upper surface of the support part, and a triangle is formed between the fixed part and the support part. , characterized in that a distal end portion of a reinforcing portion protruding obliquely forward from a lower portion of the fixing portion is attached to the supporting portion.

According to the stair step disclosed in Patent Document 2, a cantilevered staircase is formed, so that the front and rear tread parts are adjusted to the angle of the wall surface to which they are attached so that they do not buffer in plan view, and the adjacent upper and lower steps are You can freely adjust the height of the footboard and attach it to the wall. Furthermore, the tip of the reinforcing part that protrudes diagonally forward from the lower part of the fixing part is attached to the support part so that a triangle is formed between the fixing part and the support part, so that the support part can be cantilevered. It is stated that even with the formula, sufficient strength can be provided to withstand the load applied to the footboard portion.

Patent No. 2948561 Japanese Patent Application Publication No. 2014-40700

According to the slope installation staircase disclosed in Patent Document 1 and the staircase step disclosed in Patent Document 2, it is considered that the stairs can be installed relatively easily on a wall surface.

However, the stairs for installation on a slope disclosed in Patent Document 1 mainly consist of a pair of parallel frames and a step suspended from the frames, and are arranged in the vertical direction with respect to the slope (wall surface). This is a type of staircase that goes straight up and down. Therefore, when the angle of the wall surface becomes steeper, the angle at which the frame is arranged also becomes steeper, resulting in a steeper slope of the stairs. Therefore, if you try to make the slope of the stairs gentler when the angle of the wall is steep, it is necessary to move the lower end of the frame significantly away from the wall, which makes it difficult to secure an installation location and prevent installation due to the frame moving away from the wall. We believe that there will be problems with the method.

In this regard, when the stair step disclosed in Patent Document 2 is used, it is possible to install a type of stair that ascends and descends diagonally with respect to a wall surface. Therefore, stairs with a desired slope can be installed without being affected by the angle of the wall surface. However, the stair steps disclosed in Patent Document 2 have a configuration in which a pair of treads are supported. In other words, it is necessary to install twice as many steps as the number of stairs, which is very time-consuming and requires a large number of parts, which is expected to increase the installation cost.

Therefore, in view of the above-mentioned problems, the inventor of the present application has conducted extensive studies in order to provide a wall staircase that can be easily and inexpensively installed with a staircase of a desired slope without being affected by the angle of the wall surface. This led to the present invention.

That is, the wall staircase of the present invention is a wall staircase installed on a wall such as a retaining wall, and includes a fixing member, a supporting member, and a holding member, and includes one end of the fixing member and the supporting member. a plurality of brackets in which one end of the member is connected, the other end of the fixing member and one end of the holding member are connected, and the other end of the supporting member and the other end of the holding member are connected; , a plurality of steps including a tread portion and a riser portion and having a substantially L-shape in side view; and a pair of rails spanning over each of the support members related to the plurality of brackets. each of the fixing members related to the plurality of brackets is fixed to the wall surface in a stepwise manner at predetermined intervals, and the pair of rails are provided on each of the support members related to the plurality of brackets. It is characterized in that the plurality of steps are arranged on the pair of rails, which are bridged over each other.

Further, in the wall staircase of the present invention, a plurality of columns are provided outside the ends of the step in the width direction at predetermined intervals along the ascending and descending direction of the steps, and a plurality of columns are provided between the plurality of columns. A handrail is provided.

Furthermore, the wall staircase of the present invention is characterized in that a pillar attachment part is provided on the other end side of the support member related to the bracket, and the pillar is attached to the pillar attachment part.

Further, in the wall staircase of the present invention, a reinforcing rail is provided between the pair of rails.

According to the wall staircase of the present invention, a staircase with a desired slope can be easily and inexpensively installed without being affected by the angle of the wall surface.

In particular, in the wall staircase of the present invention, a plurality of brackets are fixed at predetermined intervals in a stair-like manner, a pair of rails are spanned over the plurality of brackets, and a plurality of steps are arranged on the pair of rails. Since there is no need to arrange brackets for each step, installation work can be simplified, the number of parts can be reduced, and costs can be reduced due to these.

Further, in the wall staircase of the present invention, a handrail can be easily installed, and safety can be improved.

Further, in the wall staircase of the present invention, by arranging a reinforcing rail between a pair of rails, safety can be further improved when the step width is large or at a landing.

FIG. 2 is a side view of a wall staircase according to an embodiment of the present invention. FIG. 2 is a plan view of the wall staircase shown in FIG. 1. FIG. FIG. 2 is a front view of the wall staircase shown in FIG. 1. FIG. 2 is a front view of a bracket related to the wall staircase shown in FIG. 1. FIG. It is a front view which shows other embodiment of the bracket based on the wall surface staircase of this invention. It is a side view of the wall surface staircase based on other embodiment of this invention. 7 is a front view of the bracket related to the wall staircase shown in FIG. 6. FIG.

Hereinafter, embodiments of the wall staircase of the present invention will be described in detail based on the drawings. As shown in FIGS. 1 to 3, the wall staircase 1 of this embodiment installed on a wall surface W such as a retaining wall mainly includes a plurality of brackets 10, a plurality of steps 20, and a structure built over the plurality of brackets 10. It is configured to include a pair of rails 30 that are passed.

First, as shown in FIG. 4(a), the bracket 10 according to the wall staircase 1 of this embodiment includes a fixing member 11, a supporting member 12, and a holding member 13, and includes one end of the fixing member 11. The portion 11a and one end 12a of the support member 12 are connected, the other end 11b of the fixing member 11 and the one end 13a of the holding member 13 are connected, and the other end 12b of the support member 12 and the other end of the holding member 13 are connected. 13b are connected and form a triangular shape when viewed from the front. Angle members having an L-shaped cross section can be used as the fixing member 11, the supporting member 12, and the holding member 13, and the members are connected to each other with bolts or the like.

As shown in FIG. 1 and the like, the step 20 of the wall staircase 1 of this embodiment includes a tread portion 21 and a riser that is formed integrally with the tread portion 21 and is disposed approximately perpendicularly from the nosing 21a of the tread portion 21. It is mainly composed of a plate portion 22, and has a substantially L-shape when viewed from the side. An engagement plate portion 23 is provided to protrude upward from the end of the tread portion 21 opposite to the nosing 21a. Note that the function of the engagement plate portion 23 will be described later.

The rail 30 according to the wall staircase 1 of this embodiment is a square member with a rectangular cross section, as shown in FIG. 4(a). The material is not particularly limited, such as metal or plastic, but plastic is preferred as it is lightweight as long as it has sufficient strength. Note that in FIGS. 4A and 4B, the rail 30 and the reinforcing rail 32, which will be described later, are shown in cross section when these are arranged in the horizontal direction.

Next, a method for installing the wall staircase 1 of this embodiment will be explained. The wall staircase 1 of this embodiment is mainly composed of the bracket 10, step 20, and rail 30 described above, and FIGS. 1 to 3 show the wall staircase 1 of this embodiment installed on a vertical wall W. This shows how it was done.

First, the fixing members 11 associated with the plurality of brackets 10 are fixed to the wall surface W at predetermined intervals in a stepped manner. The fixing member 11 of the bracket 10 is fixed to the wall surface W using, for example, an anchor bolt (not shown).

Once the plurality of brackets 10 are fixed to the wall surface W in a stepwise manner, a pair of rails 30 is spanned over each support member 12 related to the plurality of brackets 10. The pair of rails 30 are arranged on the support member 12 at a predetermined interval. Although the method of fixing the rail 30 and the support member 12 is not particularly limited, for example, a rail fixing hardware 31 having an L-shaped cross section is attached to the support member 12 of the bracket 10 with bolts B and nuts N, and this rail fixing hardware 31 is By attaching and fixing the rails 30 with bolts B and nuts N, the pair of rails 30 can be spanned and fixed between the plurality of brackets 10, 10.

A plurality of steps 20 are arranged on a pair of rails 30 spanned between a plurality of brackets 10, 10. The method of arranging and fixing the steps to the pair of rails 30 is not particularly limited. The step 20 is fixed to the rail 30 with a nail member 24 or the like at this corner 23a. After fixing the lower step 20, the lower end side back surface of the riser plate part 22 of the upper step 20 is engaged with the front side of the engagement plate part 23 of the lower step 20, and the engagement plate part 23 and the riser board portion 22 are fixed with nail members 24 or the like. By sequentially repeating this process and arranging the steps 20, the wall staircase 1 of this embodiment is installed.

In addition, in the wall surface staircase 1 of this embodiment, a landing 25 is installed in the horizontal direction from the top step 20. This landing 25 has a pair of rails 30 spanned between a plurality of brackets 10, 10 arranged horizontally at a predetermined interval on a wall surface W, and a tread member 26 laid on the pair of rails 30. It is installed by doing.

Here, it is preferable that a reinforcing rail 32 is provided between the pair of rails 30 at the installation location of the landing 25 in the wall staircase 1 of this embodiment. Specifically, as shown in FIG. 4(b), by disposing a reinforcing rail 32 between a pair of rails 30 and laying a tread member 26 on the pair of rails 30 and reinforcing rail 32, The load capacity of the landing 25 can be improved, and the safety of the landing 25 can be improved.

The main configuration of the wall staircase 1 of this embodiment has been described in detail above, but it is preferable that the wall staircase 1 of this embodiment is provided with a handrail 40, as shown in FIGS. 1 to 3. . Although the configuration and installation mode of the handrail 40 are not particularly limited, for example, the handrail according to Patent No. 6779102, which was previously filed and patented by the applicants of the present application, can be applied.

Specifically, a plurality of columns 41 are erected at predetermined intervals along the ascending and descending direction of the step 20 on the outside of the widthwise end portion 20a of the step 20 of the wall staircase 1 of this embodiment. Although the method for erecting the support column 41 is not particularly limited, in this embodiment, the support support 41 is fixed to the side surface of the rail 30 using support fixing hardware 42 . A handrail 40 is arranged between the plurality of supports 41. The method of fixing the post 41 and the handrail 40 is not particularly limited, and for example, a handrail attachment part 42 is provided at a predetermined location on the post 41, and the handrail 40 is fixed to the handrail attachment part 42 with bolts B or the like. be able to.

According to the wall staircase 1 of this embodiment having the above configuration, a staircase with a desired slope can be easily and inexpensively installed. In particular, in the wall staircase 1 of this embodiment, a plurality of brackets 10 are fixed at predetermined intervals in a step-like manner, and a pair of rails 30 are spanned over the plurality of brackets 10. Since a plurality of steps 20 are disposed in the stairway, there is no need to dispose a pair of stair steps for each tread part as in Patent Document 2, which simplifies the installation work, reduces the number of parts, and reduces costs. Cost reduction, etc. will be achieved.

Moreover, in the wall staircase 1 of this embodiment, it is also possible to easily install the handrail 40, and safety can be improved.

Furthermore, in the wall staircase 1 of this embodiment, the safety of the landing 25 can be further improved by arranging the reinforcing rail 32 between the pair of rails 30, particularly at the installation location of the landing 25.

Although the wall staircase 1 according to one embodiment of the present invention has been described in detail above, the wall staircase of the present invention is not limited to the embodiment described above. For example, the wall staircase 1 according to the embodiment described above has a plurality of brackets 10 fixed to the vertical wall surface W, but the wall surface to which the plurality of brackets 10 are fixed is not limited to the vertical wall surface W, and the present invention is not limited to the vertical wall surface W. The wall staircase of the invention allows stairs with a desired slope to be easily and inexpensively installed without being affected by the angle of the wall surface.

When the wall surface on which the wall staircase of the present invention is installed is not vertical, the connection angle of the fixing member 11, the supporting member 12, and the holding member 13 of the bracket 10 constituting the wall staircase of the present invention is determined according to the angle of the wall surface. By adjusting as appropriate, the wall staircase of the present invention can be installed on a wall surface at any angle. As in the brackets 10a to 10d shown in FIGS. 5(a) to 10d, the fixing member 11 and the supporting member are adjusted according to the angle of the wall surface so that the supporting member 12 constituting each bracket 10a to 10d is horizontal. 12 is determined, and the fixed member 11 and the support member 12 are connected at the predetermined connection angle α. By connecting and fixing the other end 11b of the fixing member 11 and the other end 12b of the supporting member 12 with the holding member 13, brackets 10a to 10d can be obtained that correspond to the angle of the wall surface. Note that in FIGS. 5A to 5D, the pair of rails 30 are shown in cross section when they are arranged in the horizontal direction.

Regarding the installation aspect of the handrail in the wall staircase of the present invention, for example, the plurality of brackets 10e constituting the wall staircase 1a of the embodiment shown in FIGS. An extending portion 12c is provided on the 12b side, and a strut mounting portion 44 is disposed on the extending portion 12c. The strut mounting portion 44 has a cylindrical shape, and the strut 41 is erected by inserting the strut 41 into the strut mounting portion 44 and fixing the strut 41 to the strut mounting portion 44 with bolts B and nuts N. That will happen. By arranging the handrail 40 between the upright columns 41, the wall staircase 1a of the present embodiment including the handrail 40 is obtained. Note that in FIGS. 7A and 7B, the pair of rails 30 and the reinforcing rails 32 are shown in cross section when they are arranged in the horizontal direction.

In addition, in the wall staircase 1a of the present embodiment, it is not necessary to make all of the plurality of brackets constituting the wall staircase 1a into the bracket 10e. What is necessary is just to replace it with the bracket 10e equipped with.

Although the embodiments of the wall staircase of the present invention have been described above in detail, this should not be construed as substantially limiting the technical idea of the present invention. For example, in the wall stairs 1, 1a according to the embodiment of the present invention, the step 20 is disposed at a location on the pair of rails 30, as shown in FIGS. 4(a) and 7(a). Although the step 20 is fixed, a reinforcing rail 32 may be provided between the pair of rails 30 also in the stairway portion. By arranging the reinforcing rails 32 also in the stairway portion, the load resistance of the stairway portion is improved and safety is further improved. The present invention can be implemented with appropriate improvements, changes, or additions based on the ingenuity and ingenuity of those skilled in the art without departing from the gist thereof.

1, 1a: Wall stairs 10, 10a to 10e: Bracket 11: Fixing member 12: Supporting member 13: Holding member 20: Step 21: Tread portion 22: Riser portion 23: Engagement plate portion 24: Nail member 25: Landing 26 : Stepboard member 30: Rail 31: Fixing hardware 32: Reinforcement rail 40: Handrail 41: Post 42: Post fixing hardware 43: Handrail mounting part 44: Post mounting part B: Bolt N: Nut W: Wall surface α: Connection angle

Claims (4)

A wall staircase installed on a wall such as a retaining wall,
Comprised of a fixing member, a support member, and a holding member, one end of the fixing member and one end of the support member are connected, and the other end of the fixing member and one end of the holding member are connected. a plurality of brackets formed by connecting the other end of the supporting member and the other end of the holding member;
A plurality of steps configured to include a tread portion and a riser portion and have a substantially L-shape when viewed from the side;
a pair of rails spanning over each of the support members of the plurality of brackets;
It consists of
Each of the fixing members related to the plurality of brackets is fixed to the wall surface in a stepped manner at predetermined intervals,
The pair of rails spans over each of the support members associated with the plurality of brackets,
A wall staircase characterized in that the plurality of steps are arranged on the pair of rails. A plurality of pillars erected at predetermined intervals along the ascending and descending direction of the step on the outside of the widthwise end of the step;
A handrail arranged between the plurality of pillars;
The wall staircase according to claim 1, characterized in that it comprises: A strut attachment part is disposed on the other end side of the support member related to the bracket,
The wall staircase according to claim 2, wherein the column is attached to the column attachment part. The wall staircase according to any one of claims 1 to 3, wherein a reinforcing rail is provided between the pair of rails.