JP5667351B2 - Kicking stairs - Google Patents

Description

The present invention relates to stair riser has been applied using block stairs.

  In recent years, so-called “kick staircases” that increase the depth by recessing the raised part of the stairs in a substantially horizontal direction in the exterior of a house or a park have been increasingly adopted from a design standpoint. .

  In addition, concrete stairs and steel stairs are known as stairs. The concrete staircase employs a conventional construction method in which concrete is placed on-site by placing a formwork, or a PC construction method in which a precast concrete (PC) factory-processed product is carried to the site and installed.

Here, the concrete staircase has a problem that it takes time to work on site if the conventional method is used, and the construction cost increases if the PC method is used.
Therefore, in order to solve these problems, a technique has been disclosed that can simplify the formwork forming work in the concrete stairs placement work and omit the finishing work after demolding (for example, Patent Document 1).

JP-A-8-312090

However, in the concrete staircase construction method disclosed in Patent Document 1, it is necessary to manufacture a formwork and a formwork attachment jig corresponding to the shape and size of the staircase at each site, and work on site can be labor-saving. There is a problem that the work for manufacturing the mold and the mold mounting jig takes time and the manufacturing cost of the mold and the jig rises.
In addition, when constructing the kicking staircase by the conventional method, it is said that it takes more time to work because the formwork is assembled according to the shape of the kicked part and the formwork is removed after placing concrete. There's a problem.

Accordingly, the present invention has been made in view of the circumstances described above, there is provided a stepped riser was constructed using blocks for stairs capable of achieving labor-saving construction of the riser stairs.

In order to solve the above problems, the invention described in claim 1 includes a base portion of the flat surface as viewed substantially rectangular shape, and a wall portion which is erected against該土base portion, a plane from the upper end of the wall portion A horizontal plate portion extending in a substantially horizontal direction toward one direction in a short direction of the base portion having a substantially rectangular shape, and a concave kick surrounded by the base portion, the wall portion, and the horizontal plate portion; The base portion has a protruding portion formed to protrude in the horizontal direction with respect to the wall portion on the opposite side of the wall portion from the side where the kicked portion is formed. The stair block further provided with a pressing portion constituted by the projecting portion and the wall portion is a kicking stairs used for the kick-up portion, and used for the kick-up portion of the lower step Of the stair block used for the wall portion of the stair block and the stepped-up portion of the upper step directly above the lower step. Between Kikabe portion, together they are formed tread stage of the lower, at least a portion of said riser portion is characterized by being open.

  According to the first aspect of the present invention, since the kicking portion is formed in advance in the stair block, it is possible to form the kick only by placing the stair block on the rising portion of the stair. Therefore, labor saving of the construction of the kicking stairs can be achieved.

In addition, by providing the pressing portion on the opposite side where the kicked portion is formed, soil concrete, soil, or the like constituting the tread surface on one step of the stairs is arranged on the pressing portion. Therefore, the stair block can be reliably held at a predetermined position.

It is a perspective view of the block for stairs in the embodiment of the present invention. It is a perspective view which shows the state which constructed the wash-out finishing kicking stairs using the stair block in embodiment of this invention. It is sectional drawing which follows the AA line of FIG. It is a perspective view which shows the state which constructed the kicking stairs of tiled finishing using the block for stairs in embodiment of this invention. It is sectional drawing which follows the BB line of FIG. It is a perspective view which shows the state which constructed the kicking stairs of stone pasting finish using the block for stairs in the embodiment of the present invention. It is sectional drawing which follows the CC line of FIG.

Next, an embodiment of the present invention will be described with reference to FIGS.
FIG. 1 is a perspective view of a stair block. As shown in FIG. 1, the stair block 10 is a precast concrete (PC) member that is manufactured in advance in a factory or the like. The stair block 10 includes a base portion 11 having a substantially rectangular shape in plan view, a wall portion 13 erected from the base portion 11, a horizontal plate portion 15 extending in a substantially horizontal direction from the top of the wall portion 13, and It is formed in a size that can be easily carried by an operator.

  The wall 13 is formed over the entire length in the longitudinal direction about the center of the base 11 in the short direction. The wall portion 13 is erected from the upper surface of the base portion 11 in the vertical direction. And the horizontal board part 15 is extended in the top part of the wall part 13 toward any one direction of a transversal direction. Further, the front end of the horizontal plate portion 15 is extended to a position that substantially coincides with the end portion of the base portion 11 in the lateral direction in a side view.

  Therefore, when the stair block 10 is viewed from the side, the horizontal plate portion 15, the wall portion 13, and a part of the base portion 11 facing the horizontal plate portion 15 are configured to be substantially U-shaped. Yes. A region surrounded by the U-shape is configured as a kicking portion 21. That is, the kicking portion 21 is formed over the entire length of the stair block 10 in the longitudinal direction.

  Further, a projecting portion 23 projecting from the wall portion 13 is formed on the side of the base portion 11 opposite to the side on which the kicked portion 21 is formed. When the stair block 10 is viewed from the side, the protruding portion 23 and the wall portion 13 constitute a substantially L-shaped pressing portion 25. That is, the pressing portion 25 is formed over the entire length in the longitudinal direction of the stair block 10. Further, each corner of the stair block 10 is chamfered.

(Kicking staircase construction method (washing finish))
Next, a construction method for constructing a kicking stairs using the stair block 10 will be described.
2 is a perspective view when the tread surface is washed out, and FIG. 3 is a cross-sectional view taken along the line AA of FIG.

  As shown in FIG. 2 and FIG. 3, after the cracked stone 31 is arranged at the place (soil 30) where the stair block 10 is installed, the level is adjusted by arranging the basa mortar 32 on the upper surface of the cracked stone 31. Then, the stair block 10 is disposed on the top surface of the bath mortar 32. One or a plurality of stair blocks 10 are arranged to have a desired stair width. At this time, the width L of the stair block 10 is, for example, L = 300 (mm), 600 (mm), 900 (mm), or 1200 (mm) to prepare a desired stair width. Alternatively, the stairs blocks 10 having different widths may be combined. Further, when the stair block 10 is arranged, the kicking portion 21 is arranged so as to face the lower step of the staircase (the pressing portion 25 faces the upper step of the staircase).

  As an example of the size of the stair block 10, the length of the base portion 11 in the short direction is 300 (mm), and the height of the base portion 11 is 100 (mm). In addition, the height of the upper part of the staircase is set to 200 (mm). Further, the height of the kicked portion 21 is formed to be 130 (mm).

  When the stair block 10 is arranged, the lower step tread surface 35A is constructed. In order to construct the tread surface 35 </ b> A, first, the split stone 31 is placed on the soil 30.

  Subsequently, soil concrete 37 is laid on the upper surface of the split stone 31. At this time, the soil concrete 37 is laid so as to cover a part of the kicking portion 21 and to cover the pressing portion 25 of the staircase block 10 arranged on the upper kicking portion of the lower step. By constructing in this way, the stair block 10 can be supported and fixed by the soil concrete 37 and held at a desired position.

  Subsequently, the top surface of the soil concrete 37 is overcoated with a mortar 39 kneaded with seed stones for washing out, and then washed out to finish the surface. In the present embodiment, the upper surface of the stair block 10 is exposed and finished at substantially the same level as the tread surface 35 that has been washed out.

  By repeating this procedure and constructing the upper steps one by one, it is possible to construct the kicking stairs in which the kicks 41 are formed.

(Construction method of the kicking stairs (finishing with tiles))
Next, a construction method for constructing a kicking stairs using the stair block 10 will be described.
4 is a perspective view when the tread surface is tiled, and FIG. 5 is a cross-sectional view taken along line BB in FIG.

  As shown in FIG. 4 and FIG. 5, after the split stone 31 is arranged at the place (soil 30) where the stair block 10 is installed, the level is adjusted by arranging the basa mortar 32 on the top surface of the split stone 31. Then, the stair block 10 is disposed on the top surface of the bath mortar 32. One or a plurality of stair blocks 10 are arranged to have a desired stair width. Further, when the stair block 10 is arranged, the kicking portion 21 is arranged so as to face the lower step of the staircase (the pressing portion 25 faces the upper step of the staircase).

  When the stair block 10 is disposed, the lower step tread 45A is constructed. In order to construct the tread 45 </ b> A, first, the split stone 31 is placed on the soil 30.

  Subsequently, soil concrete 37 is laid on the upper surface of the split stone 31. At this time, the soil concrete 37 is laid so as to cover a part of the kicking portion 21 and to cover the pressing portion 25 of the staircase block 10 arranged on the upper kicking portion of the lower step.

  Subsequently, the tile 47 is attached to the upper surface of the soil concrete 37. As the tile 47, for example, a square tile of 150 mm × 150 mm is spread on the tread surface, and a nose tile 47A is attached to the tip of the stair block 10.

  By repeating this procedure and constructing the upper steps one by one, it is possible to construct the kicking stairs in which the kicks 41 are formed.

(Kicking staircase construction method (finishing with stone))
Next, a construction method for constructing a kicking stairs using the stair block 10 will be described.
FIG. 6 is a perspective view when the tread is stone-finished, and FIG. 7 is a cross-sectional view taken along the line CC of FIG.

  As shown in FIGS. 6 and 7, after the split stone 31 is arranged at the place (soil 30) where the stair block 10 is installed, the level is adjusted by arranging the basa mortar 32 on the top surface of the split stone 31. Then, the stair block 10 is disposed on the top surface of the bath mortar 32. One or a plurality of stair blocks 10 are arranged to have a desired stair width. Further, when the stair block 10 is arranged, the kicking portion 21 is arranged so as to face the lower step of the staircase (the pressing portion 25 faces the upper step of the staircase).

  When the stair block 10 is disposed, the lower step tread surface 55A is constructed. In order to construct the tread 55A, first, the soil 30 is spread. At this time, the soil 30 is laid so as to cover the pressing portion 25 of the stair block 10 disposed on the upper part of the lower step.

  Subsequently, the split chestnut 31 is placed on the soil 30. At this time, the cracked stone 31 covers the part of the kicking part 21 and lays down so as to cover the pressing part 25 of the stair block 10 arranged on the upper part of the lower step.

  Subsequently, the basa mortar 32 is laid on the upper surfaces of the split stone 31 and the stair block 10. And natural stone 51 is arranged on the upper surface of batha mortar 32. By disposing the tip of the natural stone 51 so as to protrude from the tip of the stair block 10, the stair block 10 is disposed at a position where it is difficult to see.

  By repeating this procedure and constructing the upper steps one step at a time, it is possible to construct the kicking stairs in which the depthd kicks 41 are formed.

  According to this embodiment, since the kick part 21 is previously formed in the stair block 10, the kick 41 can be formed only by mounting the stair block 10 on the rise part of the stair. Therefore, labor saving of the construction of the kicking stairs can be achieved, and the construction period can be shortened and the construction cost can be reduced.

  Further, by providing the pressing portion 25 on the opposite side where the kicking portion 21 is formed, the soil concrete 37, the soil 30 and the like constituting the tread on one step of the stairs are arranged on the pressing portion 25. Therefore, since the stair block 10 is supported and fixed by the soil concrete 37, the soil 30, and the like, the stair block 10 can be reliably held at a predetermined position.

Note that the present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the spirit of the present invention. The specific shapes and dimensions given in the embodiment are not limited thereto. These are merely examples, and can be changed as appropriate.
For example, in the present embodiment, the description has been given using the stair block formed with the pressing portion, but it is also possible to adopt a block in which the pressing portion is not formed.

  DESCRIPTION OF SYMBOLS 10 ... Stair block 11 ... Base part 13 ... Wall part 15 Horizontal board part 21 ... Kick-in part 23 ... Protrusion part 25 ... Holding part

Claims (1)

A flat surface as viewed substantially rectangular base portion,
A wall portion erected with respect to the base portion;
A horizontal plate portion extending in a substantially horizontal direction from the upper end of the wall portion toward one direction in the short direction of the base portion in a substantially rectangular shape in plan view;
A concave kick-in part surrounded by the base part, the wall part and the horizontal plate part,
The base portion has a protruding portion formed to protrude in a horizontal direction with respect to the wall portion on the opposite side of the wall portion where the kicked portion is formed,
The stair block further comprising a pressing part constituted by the projecting part and the wall part is a kicking staircase used for a kick-up part,
Between the wall portion of the stair block used for the stepped up portion of the lower step and the wall portion of the step block used for the stepped up portion of the upper step directly above the lower step In addition, the kicking stairs are characterized in that a step surface of the lower step is formed and at least a part of the kicking part is open.

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