JP3012936U - Steps for stairs - Google Patents

Abstract

(57) [Summary] [Purpose] Even if one step is used with different kicking heights,
No or narrow the gap between adjacent steps. [Structure] An upper end side 9 of a riser plate 8 is integrally connected to a lower surface 5 of a front side 2 of a step board 1 at an attachment angle α ₁ of about 80 degrees to form a step body 16 having an inverted L-shaped cross section. To do. Screw holes for nuts 15 for mounting the girder are exposed on both end surfaces 1a, 1b of the tread 1. The upper surface 4 side of the end surface 6 of the rear side 3 of the tread 1 is the facing surface 17, and the lower end side 11b of the front surface 11 of the riser plate 8 is the facing surface 18. Opposing surface 17 of tread 1 and riser 8
Are parallel to the surface 18 to be opposed (angle α ₁ = α ₂ = β).
On the front side 2 of the upper surface 4 of the tread 1, there are uneven strips 19, 19 in the width direction.
And the step 20 is formed. The gap D between when the steps 20 are arranged in a staircase pattern at the raising height H ₀ and when the steps 20a are used at the raising height H ₁ can be made smaller than the rising height H.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a step for stairs that enables adjustment of a kicking height.

[0002]

[Prior art]

 Conventionally, in the steps 40 that form a staircase, in which the upper end side of the riser plate 37 is integrally connected to the lower surface of the front side 35 of the step board 33 to form an inverted L-shaped cross section, the steps 40 are arranged in a staircase shape. It was attached to the sasara girder 41 to form the stairs 42. In this case, the rear side 34 of the upper surface 36 of the step plate 33 of the step 40 located below and the lower surface 38 of the riser plate 37 of the step 40 adjacent to the upper side are made to correspond to each other, and the steps 40, 40 are formed in a stepwise manner. They were lined up (Fig. 6).

[0003]

[Problems to be solved by the device]

In the conventional step 40, when one step 40 is used at different kicking heights, the step 40 is lifted from the initial kicking height H ₀ by only the height H to raise the kicking step. When the height is H ₁ (FIG. 6, chain line 40a), the distance raised between the lower surface 38 of the riser plate 37 of the step 40a and the upper surface 36 rear side 35 of the step plate 33 of the lower step 40 is increased. The same amount of gap 43 as H was generated. Therefore, the work of closing the gap 43 becomes complicated and the gap 43 is formed below the riser plate 37, which causes a problem that the appearance of the stairs 42 is deteriorated.

[0004]

[Means for Solving the Problems]

 However, the present invention solves the above-mentioned problems because the facing surface formed on the rear end surface of the tread forming the stairs and the connected surface formed on the front surface of the riser plate are formed substantially parallel to each other.

That is, according to the invention, in a step forming a stair in which both ends are fixed in parallel with each other with a girder, and the upper end side of the riser plate is integrally connected to the lower surface of the front side of the step plate. A step body having an inverted L-shape in cross section and having fixing portions for mounting a girder on both sides is formed, and an opposing surface formed on a rear end surface of the step plate of the step body and a lower end front surface of the riser plate are formed. It is a step for stairs, characterized in that the formed face to be opposed is formed substantially in parallel.

In addition, in a step forming a stair by arranging both ends in parallel with each other and fixing the both ends with a flat girder, the upper end side of the riser plate is attached to the lower surface of the front side of the step plate so that the mounting angle becomes an acute angle. , A step body having an inverted L-shaped cross section formed integrally and having fixing portions for mounting a girder on both sides, and facing each other formed on the rear end surface of the step plate of the step body. It is a step for stairs, characterized in that the surface and the face to be opposed formed on the lower end side front surface of the riser plate are formed substantially parallel to each other.

In addition, in a step forming a stair by arranging both ends in parallel with each other in a staircase and fixing it with a flat girder, the upper end side of the riser plate is attached to the lower surface on the front side of the step plate so that the mounting angle becomes an acute angle. , A step body having an inverted L-shaped cross section formed integrally and having fixing portions for mounting a girder on both sides, and facing each other formed on the rear end surface of the step plate of the step body. It is a step for stairs, characterized in that a surface and a surface to be opposed formed on the lower end side front surface of the riser plate are formed substantially parallel to each other, and an uneven strip in the width direction is formed on the front upper surface of the tread plate. . Furthermore, in a step where the two ends are fixed in parallel with each other and fixed with sasara girders to form stairs, the upper end side of the riser plate is integrally connected to the lower front side of the step plate so that the mounting angle is acute. A step body having an inverted L-shape in cross section and having fixing portions for mounting the girder on both sides is formed, and the facing surface formed on the rear end surface of the step plate of the step body and the riser plate. For stairs in which the facing surface formed on the lower end side front surface is formed substantially in parallel, and a mounting member having laying member mounting means is embedded on the upper surface of one side of the tread plate over substantially the entire length in the width direction. It is a step.

The above-mentioned attachment angle means the angle formed by the upper surface of the tread plate and the upper side of the front surface of the riser plate.

[0009]

[Operation] Since the facing surface formed on the rear end surface of the tread plate and the facing surface formed on the lower end side front surface of the riser plate are formed substantially parallel to each other, when the steps are arranged in a stepwise manner, they are positioned downward. The facing surface of the step and the facing surface of the step located above are installed so as to face each other. If the upper end side of the riser plate is formed on the lower surface of the front side of the tread plate so that the mounting angle is an acute angle, the upper surface of the tread plate can be formed wider with the same tread surface.

In the case where an uneven strip in the width direction is formed on the front upper surface of the tread, the portion serves as a slip stopper. If the mounting member having the laying object mounting means is buried, various finishing materials can be installed on the steps.

[0011]

【Example】

 An embodiment of the present invention will be described with reference to the drawings.

On the lower surface 5 of the front side 2 of the tread plate 1, the upper end side 9 of the riser plate 8 is attached at an acute angle (here, the angle between the upper surface 4 of the tread plate ₁ and the front face 11 of the riser plate) α _1. , About 80 degrees) are integrally connected to form a step body 16 having an inverted L-shaped cross section. Reinforcing reinforcing bars 14 and 14 connecting nuts 15 and 15 for mounting girder girders on both sides are embedded in the step plate 1 of the step body 16 and screw holes for the nut 15 are formed on both end surfaces 1a and 1b of the step plate 1. (Fixing part for mounting the sasara girder) is exposed.

The upper surface 4 side of the end surface 6 of the rear side 3 of the tread plate 1 is the facing surface 17, and the front surface 11 of the riser plate 8 is formed in a flat shape, and the lower end side of the front face 11 of the riser plate 8 is formed. Let 11b be the opposed surface 18. Here, the angle α ₂ formed between the opposed surface 18 and the upper surface (horizontal surface) 4a of the step to be located below is the same as the mounting angle α ₁ . The angle between the facing surface 17 of the step plate 1 of the step body 16 and the extension line 17a of the facing surface 17 and the upper surface 4 of the step plate 1 is β. The angle β is formed to be the same as the attachment angle α ₁ (= α ₂ ). Therefore, the facing surface 17 of the tread 1 and the facing surface 18 of the riser plate 8 are formed in parallel.

Further, on the front side 2 of the upper surface 4 of the tread 1, ridges 19 and 19 are formed in the width direction. The steps 20 are formed as described above. The steps 20 are made of cement (for example, fiber-reinforced mortar) material and are integrally formed.

Next, the use of the step 20 of the present invention based on the above embodiment will be described.

A predetermined number of steps 20 and 20 of the present invention are arranged in a stepwise manner, both ends are sandwiched by sasara girders 21 and 22, and bolts are inserted through the through holes 23 and 23 of the sasara girders 21 and 22. The stairs 24 are configured by screwing and fastening the nuts 15 and 15 (FIGS. 1A and 2).

It is also possible to use one step 20 with different raising heights. In this case, the facing surface 17 of the tread 1 and the facing surface 18 of the striking plate 8 are in contact with each other at a normal installation position (solid line position in FIG. 2, kicking height H ₀ ). When the height H is raised from the normal use position and the kicking height H ₁ is used, for example, the step 20 located above the stairs 20 is vertically raised by the height H (a chain line 20a in FIG. 2). Position: Kicking height H ₁ ). At this time, the gap 25 formed between the facing surface 18 of the step 20a located above and the facing surface 17 of the step located below is only the width D, which is smaller than the height H, and the gap 25 is filled. The amount of caulking required is smaller than before. Moreover, since the gap 25 is formed on the edge side of the rear side 3 of the upper surface 4 of the tread 1, it is inconspicuous to a pedestrian.

Although the steps located above the stairs 20 are vertically raised by the height H, the facing surface 17 of the lower step 20 and the facing surface 18 of the upper step are stepped up. If the step 20a located above is raised by the height H in the abutting state, the gap between the facing surface 17 and the facing surface 18 does not occur (FIG. 3). However, the tread becomes shorter accordingly.

In the above-mentioned embodiment, the mounting angle α _{1 is set} to about 80 degrees, but it can be set to another angle as long as it is an acute angle, usually 70 degrees to 90 degrees, and appropriately selected and set. . Further, when the mounting angle is 90 degrees, the gap 25 between the facing surface 17 and the facing surface 18 is generated even when the step located above the stairs is raised vertically by the height H. I do not (not shown).

Further, although the facing surface 17 and the facing surface 18 are formed parallel to each other in the above-described embodiment, if the both surfaces 17 and 18 are substantially parallel to each other, the width D of the gap 25 may be formed minutely. You can

Further, in the above-mentioned embodiment, the front surface 11 of the riser plate 8 is formed in a flat shape, but it is also possible to form the upper side 11a and the lower side 11b of the front side 11 of the riser plate so as to have an angle. That is, the front side upper side 11a of the riser plate 8, that is, the mounting angle α ₁ is formed at about 80 degrees, and the front side lower side 11b is formed vertically downward so as to be the opposed surface 18, which is located below the opposed surface 18. The angle α ₂ formed with the upper surface (horizontal plane) 4a of the step to be formed is 90 degrees. At this time, the angle β of the facing surface 17 is formed at 90 degrees, which is the same as the angle α ₂ (FIG. 4).

At this time, similarly to the above, when the raising height is raised from H ₀ to H ₁ by H, even if the upper step 20a is raised vertically, the angles α ₂ and β are both 90 Therefore, the facing surface 17 and the facing surface 18 are in contact with each other, and the gap 25 does not occur (FIG. 4).

Further, in the above-described embodiment, the width-direction uneven strips 19 and 19 are formed on the front side 2 of the upper surface 4 of the tread 1, but the uneven strips 19 may not be formed (not shown). . Further, although the uneven strip 19 acts as a non-slip during walking, instead of the uneven strip 19, a hollow mounting member 26 having a substantially rectangular cross section is embedded in the front side 2 of the upper surface 4 of the tread 1 to form a step. 29 can also be formed (FIG. 5A). In the above description, the upper surface 27 of the mounting member 26 is provided with a bolt hole (laying material mounting means) for fixing the slip preventing material (laying material) (not shown), and the lower surface is made of concrete. A ridge 28 for fixing is formed. In this step 29, a riser plate cover 30 is attached to the front surface 11 of the riser plate 8, and a slip plate sheet 31 with a step plate cover is attached to the attachment member 26 with bolts (FIG. 5 (b)). Here, the laying object attaching means is a bolt hole, but it is also possible to adopt a structure (not shown) in which a through hole, a double-sided adhesive tape, and other attached objects can be clamped or hooked.

In addition, in the above-described embodiment, the reinforcing material exposes the screw holes of the nuts 15 at both ends to both end surfaces 1a and 1b of the tread 1, and the portions are used as the fixing portions for mounting the smooth girder. It is also possible to embed a long threaded cylinder as a reinforcing material. Alternatively, a thread may be formed at both ends of the rod-shaped reinforcing member, and the thread may be projected from the side edge of the step to serve as a fixed portion.

[0025]

[Effect of device]

 Since the facing surface formed on the rear end surface of the step plate that forms the stairs and the facing surface formed on the lower end side front surface of the riser plate are formed substantially parallel to each other, when the steps are arranged in a staircase pattern, the stairs are formed. In addition, if the facing surface and the facing surface of the adjacent steps are installed so as to face each other, even if one step is used at various raising heights, the gap generated in the adjacent steps can be made minute. Therefore, there is an effect that the labor for filling the gap can be saved and the construction of the stairs can be simplified. In addition, since one step can be used at various lift heights, it is not necessary to prepare several kinds of steps according to the lift height, and there is an effect that the steps from manufacturing to construction can be made efficient.

Further, in the case where the upper end side of the riser plate is formed on the lower surface of the front side of the tread plate so that the mounting angle becomes an acute angle, the upper surface of the tread plate can be formed wide with the same tread surface, so that the toe of the stair user can be It has the effect of not hitting the treads and making the gap between the adjacent stairs even less noticeable.

[0027] In the case where the front side upper surface of the tread plate is formed with an uneven strip in the width direction or the mounting member having a laying object mounting means is embedded, the stairs are prevented from slipping and a desired finishing material is installed on the step. be able to.

[Brief description of drawings]

1A is a plan view, FIG. 1B is a side view, and FIG. 1C is a sectional view taken along line AA of FIG.

FIG. 2 is a side view showing a state in which one of the sasara girders is removed in a use state of the embodiment of the present invention.

FIG. 3 is a side view of another embodiment of the present invention in a state in which one sasara girder is removed in another usage state.

FIG. 4 is a side view of the other embodiment of the present invention in use, with one of the sassar girders removed.

5 (a) and 5 (b) are other embodiments of the present invention.

FIG. 6 is a side view showing a state in which one of the sasara girders is removed in a use state of a conventional example.

[Explanation of symbols]

 1 step board 2 front side (step board) 3 rear side (step board) 4 upper surface (step board) 6 rear end surface (step board) 8 kicking board 9 upper end side (kicking board) 10 lower end side (kicking board) 11 front surface (kicking board) ) 14 Reinforcing reinforcing bars 16 Step body 17 Opposing surface 18 Opposed surface 19 Concavo-convex strip 20 Steps 21, 22 Sasara girder 24 Stair 25 Gap 26 Mounting member 29 Step 33 Step plate 37 Raising plate 43 Gap

Claims (4)

[Scope of utility model registration request] 1. In a step in which both ends are fixed in parallel with each other in a stair shape and fixed by a flat girder to form a stair, an upper end side of a riser plate is integrally and continuously connected to a lower surface of a front side of a step plate. In the form
In addition, a step body having fixing portions for attaching a sasara girder is formed on both sides, and an opposing surface formed on the rear end surface of the step plate of the step body and an opposed surface formed on the lower end side front surface of the riser plate. Steps for stairs characterized by being formed substantially in parallel. 2. In a step in which both ends are fixed in parallel with each other in a staircase pattern and fixed with sasara girders to form a staircase, the upper end side of the riser plate is integrally formed on the lower surface of the front side of the tread plate so that the mounting angle becomes an acute angle. Forming a step body having an inverted L-shaped cross section continuously connected to both sides and having fixing portions for mounting a girder on both sides, and a facing surface formed on the rear end surface of the step plate of the step body, and a riser A step for stairs, characterized in that a face to be opposed formed on the front surface on the lower end side of the plate is formed substantially in parallel. 3. In a step in which both ends are fixed in parallel with each other in a staircase pattern and fixed by sasara girders to form a staircase, the upper end side of the riser plate is integrally formed with the front lower surface of the tread plate so that the mounting angle becomes an acute angle. Forming a step body having an inverted L-shaped cross section continuously connected to both sides and having fixing portions for mounting a girder on both sides, and a facing surface formed on the rear end surface of the step plate of the step body, and a riser A step for stairs, characterized in that a face to be opposed formed on the front surface on the lower end side of the plate is formed substantially in parallel, and an uneven strip in the width direction is formed on the front upper face of the tread plate. 4. In a step in which both ends are fixed in parallel with each other in a staircase shape and fixed by a flat girder to form a stair, the upper end side of the riser plate is integrally formed on the lower surface of the front side of the step plate so that the mounting angle becomes an acute angle. Forming a step body having an inverted L-shaped cross section continuously connected to both sides and having fixing portions for mounting a girder on both sides, and a facing surface formed on the rear end surface of the step plate of the step body, and a riser For a staircase in which a face to be opposed formed on the lower end side front face of the plate is formed substantially in parallel, and a mounting member having a laying member mounting means is embedded on the upper surface on one side of the tread plate over substantially the entire length in the width direction. Steps.