JP3361288B2 - Manufacturing method of stair tread finish material - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to stair tread finishing that can prevent slipping and is useful for streamlining stair construction work.
The present invention relates to a method for manufacturing a material .

[0002]

2. Description of the Related Art Conventionally, the problems to be solved by the invention
As shown in FIG. 10, in the stairs a, it is known that the tread surface b is washed out with a seed stone c such as pea gravel to enhance the scenery. In such a stair a, for example, an angle-shaped precast frame material d is combined to form a stair base having a recess e on a tread surface b, and then a kneading material of a seed stone c and cement is poured into the recess e. At the same time, by observing the degree of water drainage of the kneaded material, the surface of the kneaded material is sprinkled with fresh water manually or by using an electric sprayer or the like to wash off the surface of the kneaded material so that the seed stone c is exposed on the finished surface. To be done.

However, in the above-mentioned method, a large amount of water is used for washing and finishing at the site, so that wastewater treatment at the site is required and the surroundings of the site are easily polluted, so that the indoor stairs are likely to be polluted. There is a problem such as making it difficult to apply to. Further, in the conventional example, the nose D including the front part f of the tread surface b and the front end surface g of the tread plate has a problem that it is slippery because the nose tile j or the like is attached to it instead of the wash-out finish surface.

The present invention has been devised in view of the above problems, and is useful for constructing stairs without contaminating the surroundings of the work site, and moreover, stair tread finishing which can make the nosing part slippery For manufacturing stair tread finishing materials
It is intended to provide the law .

[0005]

The invention according to claim 1 of the present invention is an upwardly open rectangular concave including parallel long sides and short pieces.
In the mold having the parts, the first component on one long side of the mold is formed.
Base coat the mortar along the side of the mold leaving a small gap.
Undercoating step, in the gap, over the top surface of the mortar
Mixing a seed stone such as pea gravel and cement up to a certain height
A mixture-filling step for filling and raising objects, at least
Laying seed stones such as pea gravel on the undercoated mortar
The seed stones are exposed on the surface by scooping and tapping.
Tread forming step of forming the exposed tread, the mixture
Remove the first molding side before the
A stone that grinds the surface of an object to expose the seed stone and disperse it densely
Delivering process and cured tread finishing material from the mold
Stair treads characterized by including a demolding process for demolding
It is a method of manufacturing a raised material.

The invention according to claim 2 is such that parallel long sides and
In a mold with an open rectangular recess containing short pieces, soy sand
The mixture of cement and seed stone
Mix with a small width along the first molding side on the long side
Mortar in the mold filling process, excluding the mixture
A subbing step of subbing, at least the subbed coating
Lay seed stones such as gravel on top of rutar and beat
To form a tread with the seed stone exposed on the surface.
The step of forming the tread surface, and before the mixture is cured
Remove the first molding side and sharpen the surface of the mixture before
Stone removal process to expose and densely disperse stones and hardening
The demolding process of demolding the finished tread finishing material from the mold
In the manufacturing method of stair tread finishing material characterized by including
is there.

Further, in the invention according to claim 3 , in the step of forming a tread, a step of sprinkling cement powder after smashing the seed stones and a step of sprinkling cement powder, and a step of wiping off a ladle exuded on the surface The method for producing a stair tread finishing material according to claim 1 or 2 , further comprising:

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 shows a method for manufacturing the stair tread finishing material.
According to one embodiment (hereinafter, simply referred to as the manufacturing method of the present invention)
2 is a perspective view of a stair tread finishing material (hereinafter sometimes simply referred to as "tread finishing material") 1 that can be manufactured by
Shows a partial perspective view of the stairs S in the process of being constructed using the "Tread finishing material" 1 . In the figure, a tread finishing material 1 is composed of a substrate portion 2 made of mortar and a finishing layer 4 in which seed stones 3 such as gravel are exposed and densely scattered on the surface.

In the present example, the substrate portion 2 has a lath (base metal mesh) 5 inside. The lath 5 enhances the rigidity of the substrate portion 2 and helps prevent cracking of the tread finishing material 1. However, the lath 5 may be omitted if necessary.
Further, the mortar contains at least cement, sand, and water, and the mixing ratio thereof is appropriately determined as necessary.
The thickness t of the substrate portion 2 is not particularly limited, but may be, for example, about 10 to 70%, and more preferably 20 to 60% of the total thickness T of the tread finishing material.

The finishing layer 4 has a wash-out finish in which seed stones 3 such as gravel are exposed and densely scattered on the surface. As a result, the finishing layer 4 produces a unique texture on the surface due to the texture of the seed stone 3 and the unevenness of the surface, and can greatly improve the landscape. The seed stone 3 is sufficient if a part thereof is exposed, and as an example in which the seed stone 3 is densely scattered, for example, the total surface area of the seed stone 3 in the total surface area of the finishing layer 4 is 45% or more. It is preferable to arrange them randomly.

The seed stone 3 of this example is not particularly limited and various ones may be used. For example, the diameter is 5 to 1
It is preferably about 0 mm. In addition to the above-mentioned gravel, artificial stone or natural stone can be used as the seed stone, and even if it is made of resin, two or more kinds of seed stones having different colors, sizes, etc. can be blended. Various uses are possible, and for example, marble, granite, other crushed stones, and the like are preferable.

Further, the finishing layer 4 covers a tread surface finishing portion 4a which covers the upper surface portion 2a of the substrate portion 2 and a front surface portion 2b which is continuous with the tread surface finishing portion 4a and which is on the nose D side of the substrate portion 2. The front finishing part 4b is included. The nosing D is
It includes a front portion 11a of the tread surface 11 and a front end surface 12 continuous with the front portion 11a. Therefore, the tread finishing material 1 can expose the seed stone 3 over the entire area of the tread surface 11 and the front end surface 12.

By fixing such a tread finishing material 1 to the tread base B shown in FIG. 2 with, for example, mortar or the like, the tread 11 and the nose D are all formed with the same finished surface as washed out. can do. The finishing layer 4 is
As described above, the seed stones 3 are densely scattered and exposed on the surface, so that fine unevenness can be formed on the surface, and as a result, the friction with the shoe sole is increased on the step surface 11 and the nose D of the stairs,
Compared with the conventional nosing tiles, it can effectively prevent slipping. Moreover, the entire surface of the tread 11 can be made the same finished surface as that of the washout, and the scenery can be further enhanced.

Such a tread finishing material 1 is, for example,
It is manufactured in a plate shape in advance at a factory or the like. Then, it is carried into the staircase construction site and placed on the tread base B of the staircase base SB shown in FIG. Therefore, the tread 11 and the nose D of the stairs S can be finished without performing the wash-out finishing work using fresh water on the spot, and the stain around the spot can be prevented. Further, the construction work can be greatly streamlined as compared with the conventional one by not requiring the installation of washout wastewater treatment equipment and the like, and it can be suitably used, for example, for indoor stairs. The tread finishing material 1 is
The shape and size may be variously determined as necessary, such as one covering the entire tread, or a plurality of treads arranged side by side to cover the tread.

Regarding the manufacturing method of the present invention , FIG. 3 shows a perspective view of a mold 20 on which the tread finishing material 1 can be formed. In this example, a formwork unit in which six formworks 20 are integrated is illustrated. Each of the molds 20 has, for example, an upwardly open rectangular concave portion including parallel long sides 20A and 20B, a short piece 20C, and a bottom plate 20D.

4 to 8 exemplify partial sectional views taken along the stepping direction of one mold 20. First, as shown in FIG. 4, an undercoating step is performed in which the mortar 23 is undercoated along the first molding side surface 22 on the one long side 20A of the mold 20 leaving a small gap K. It is desirable that a release sheet (not shown) or the like is laid on the bottom surface of the mold 20 so that the tread finishing material hardened in the mold 20 can be easily released from the mold. In addition, the release sheet,
For example, newspaper, vinyl sheet, etc. are used appropriately.

In the undercoating step of this embodiment, first, the step of forming the first layer 23A of the mortar, which is the lowermost layer, the step of laying the lath (base wire mesh) 5 thereon, and the lath 5 are formed. And the step of forming the second layer 23B of mortar. As described above, the lath 5 may be omitted. The mortar 23 used in these undercoating steps does not contain seed stones.

The narrow gap K along the first molding side surface 22 is formed continuously in the width direction of the tread, and is not particularly limited, but is, for example, 10 to 30.
It is formed with a small width W of about mm, more preferably about 10 to 20 mm. Such a narrow gap K is provided, for example, by placing a contact plate 25 or the like in the mold 20 in advance so as to prevent the mortar 23 from entering the gap 3 in parallel with the first molding side surface 22. It may be formed by coating,
Further, it may be formed without using such a contact plate 25.

Next, as shown in FIG. 5, in the gap K, a mixture 26 in which the seed stone 3 and cement are mixed to a height exceeding the upper surface of the mortar, in this example, the upper surface of the second layer 23B.
A mixture filling step of filling and raising. In this example, the mixture 26 is filled so as to be gradually inclined from the upper end of the first molding side surface 22 and descends so as to be continuous with the upper surface of the mortar. The one that is slightly larger than that is exemplified. Further, the mixing ratio of the seed stone 3 and the cement can be appropriately determined according to the intended specifications of the surface to be washed out.

Next, as shown in FIG. 6, a seed stone 3 such as pea gravel is laid on at least the second layer 23B of the primed mortar. Further, in this example, the seed stone 3 is also laid on a part of the mixture 26. And
For example, as shown in FIG. 7, the surface of the seed stone 3 sprayed with a gold iron 27 or the like is evenly beaten, and the seed stone 3 is embedded in the uncured mortar 23 and bonded, but at this time, The surface of the seed stone 3 is partially exposed. In this way, the tread forming step of forming the tread 11 is performed.

Further, it is desirable that after the seed stone 3 has been beaten to an undercoated mortar, a treatment for wiping off the ladle that has exuded on the surface of the tread surface 11 is performed during or during tapping and leveling. This is preferable because it helps accelerate the drying of the mortar. In addition, especially in a dry season such as in winter, for example, before wiping, by adding a step of laying newspaper on the surface of the tread and spraying cement powder or the like on it, moisture on the surface of the tread 11 can be prevented while preventing discoloration. The slag can be easily absorbed, and thereafter, by performing a wiping operation or the like, the moisture absorption and curing can be further enhanced and the drying can be accelerated.

Next, as shown in FIG. 8, the first molding side surface 22 formed by the long side 20A before the mixture 26 is cured.
Is removed, and the surface of the mixture 26 is ground to perform a stone removing step for exposing the seed stones 3 on the front end surface 12 on the nosing D side and densely scattering the seed stones 3. This step is performed by exposing the seed stone 3 to the surface by wiping the surface with a brush, sponge or the like while adjusting the shape of the front end face 12 using the gold iron 27 or the like and supplementing the surface with water appropriately. sell. If necessary, the tread 11 and the front end face 1
It is also good to round off the intersection with 2.

Then, a tread finishing material 1 as shown in FIG. 1 can be manufactured by performing a demolding step of demolding the tread finishing material 1 cured in the mold 20. Form 2
It is also conceivable that a kneading material in which the seed stone 3 and the mortar are collectively mixed is poured into 0, and the surface thereof is washed out and finished to form a tread finishing material. However, such a tread finishing material, although it requires a large amount of seed stones, does not have a dense stone arrangement and also contains many seed stones inside, so it easily cracks and its quality deteriorates. In addition, it requires washing out with fresh water. On the other hand, in the tread finishing material 1 of the present invention or the manufacturing method thereof, the base material 2 made of the mortar 23 is provided inside, and the seed stone 3 is sprinkled on the base material 2 to be leveled to make a small amount. With the seed stones, a finely lined stone surface can be formed and the work process can be greatly simplified. Further, the substrate portion 2 is less likely to be broken and the durability can be improved.

As yet another embodiment, as shown in FIG. 9 (A), a mixture 26 obtained by previously mixing the seed stone 3 and cement is placed in the mold 20 along the first molding side surface 22. It is also possible to perform a mixture arranging step of arranging with a small width W, and thereafter, as shown in FIG. 9B, undercoat the mortar 23 in the mold 20 while avoiding the mixture 26. The subsequent steps are the same as in the above embodiment.

The embodiment of the present invention has been described above. For example, the side surface of the tread finishing material 1 has side stones 30 (see FIG. 2).
In the case where the seed stone 3 is not blindfolded by (), etc.), the seed stone 3 may be exposed by using the narrow mixture 26 also when molding the side surface.

[0027]

As described above, according to claims 1 to 3.
In the manufacturing method of the present invention according to the mounting, it is possible to efficiently finish the finishing surface in which the seed stones are densely scattered while the seed stone is exposed on both the tread surface and the nosing of the stair tread finishing material. In addition, such a finishing layer can form a finishing surface similar to washing by laying a seed stone on the mortar and striking and leveling it, and as a result, the operation of spraying fresh water with a manual or electric sprayer and its drainage. Such steps can be omitted, and productivity can be significantly improved, and since the seed stone is not mixed in the internal substrate part, it is possible to reduce the amount of seed stone used and form a finely finished surface with a row of stones. .

[Brief description of drawings]

FIG. 1 is a perspective view of a stair tread finishing material.

FIG. 2 is a perspective view showing a construction side of a staircase using the same.

FIG. 3 is a perspective view of a mold.

FIG. 4 is a cross-sectional view illustrating the undercoating process of the present embodiment.

FIG. 5 is a cross-sectional view illustrating a mixture filling step of the present embodiment.

FIG. 6 is a cross-sectional view illustrating a tread forming step of the present embodiment.

FIG. 7 is a cross-sectional view illustrating a step forming process of the present embodiment.

FIG. 8 is a cross-sectional view illustrating a step of exposing a stepped stone according to the present embodiment.

FIG. 9A is a cross-sectional view illustrating a mixture coating step and FIG. 9B is an undercoating step.

FIG. 10 is a perspective view illustrating a conventional staircase.

[Explanation of symbols]

1 stair tread finishing material 2 board part 3 stones 4 finishing layer 4a Tread finishing part 4b Front finishing section 11 treads 12 front end face 23 Mortar 26 mixture D nosing K gap

Continuation of the front page (56) References JP-A-8-134814 (JP, A) JP-A-9-193115 (JP, A) Actual development Sho-50-153725 (JP, U) JP-B-4-22402 (JP , B2) (58) Fields investigated (Int.Cl. ⁷ , DB name) E04F 11/00-11/116 B28B 1/00-1/54

Claims (3)

(57) [Claims] 1. An open upper rectangular concave including parallel long sides and short pieces.
In the mold having the parts, the first component on one long side of the mold is formed.
Base coat the mortar along the side of the mold leaving a small gap.
Undercoating step, in the gap, soybean sand to a height exceeding the upper surface of the mortar
Filling a mixture of cement and cement
Heaping mixture filling step, at least on the undercoated mortar, bean gravel, etc.
By laying and tapping the seed stones of
A tread forming step of forming a tread in which the seed stone is exposed , the first molding side surface is removed before the mixture is hardened.
Then, the surface of the mixture is ground to expose the seed stone and to disperse the seed stone closely.
The stone removing step to be performed and the demolding of the hardened tread finishing material from the mold
Manufacture of stair treads characterized by including a mold process
Build method . 2. An upper open rectangular recess including parallel long sides and short pieces.
Mix seed stones such as bean gravel and cement into a mold with parts.
Apply the combined mixture to the first molding side on the long side of the one side.
Mixing process of arranging with a small width, undercoating to undercoat mortar in the mold excluding the mixture
Process, at least on the primed mortar, bean gravel, etc.
By laying and tapping the seed stones of
A tread forming step of forming a tread in which the seed stone is exposed , the first molding side surface is removed before the mixture is hardened.
Then, the surface of the mixture is ground to expose the seed stone and to disperse the seed stone closely.
The stone removing step to be performed and the demolding of the hardened tread finishing material from the mold
Manufacture of stair treads characterized by including a mold process
Build method . 3. The step of forming the tread surface is performed by striking the seed stone evenly.
Then, the cement powder spraying process of spraying the cement powder and the table
Including a wiping process to wipe off the ladle that has exuded on the surface
A method of manufacturing a stair tread finishing material according to claim 1 or 2.
Law.