JPH0240677Y2 - - Google Patents

Description

[Detailed description of the invention] This invention is applicable to various types of plates such as panels and boards used for the interior and exterior surfaces of buildings such as walls, pillars, ceilings, and floors, road surfaces such as roads and passageways, and also for interiors and exteriors. It relates to a joint pattern forming member used to form a joint pattern similar to that of bricks, tiles, or stones stuck or embedded on the surface of Concerning what can be done.

Recently, a construction method has been used that uses spray finishing on the interior and exterior surfaces of buildings to create joint patterns and a solid feel similar to those achieved by pasting tiles or bricks. This involves pasting a plastic film or cardboard pattern with a cut out joint pattern on the wall, then spraying a spray material onto it, and then peeling off the pattern when the spray material is semi-dry to reveal the joint pattern. . Therefore, the construction efficiency is greatly improved compared to the case where bricks or tiles are attached one by one, and there is no risk of tiles etc. coming off due to aging of the bonded parts, and demand is increasing.

However, since conventional paper patterns form joints by peeling off from the wall surface,
The finished product and work efficiency were not completely satisfactory.

In other words, when the spray material dries, the paper pattern sticks to the wall surface, and if you forcefully remove it, it will dry up and become impossible to remove, or the paint on the protrusions will peel off, so it is necessary to remove it when it is semi-dry. Therefore, the ridgeline portion of the convex portion hangs down and is not clearly visible. In addition, because the paper pattern is thin, thick convex parts cannot be formed, and the pattern is only about 2 to 3 mm (up to about 5 mm is possible if you use a special double joint pattern that can be blown twice), resulting in a deep joint pattern similar to that seen in bricks. It was impossible to produce a concavo-convex pattern, and combined with the fact that the ridge lines of the convex portions were unclear, only a low concavo-convex contrast could be obtained.

On the other hand, the paper pattern is quite heavy due to the sprayed material attached to it, and as mentioned above, the paint peels off when it is soft, so if the convex part collapses or the sprayed material on the pattern adheres to the convex part, it will be difficult to repair. It is a time-consuming process that must be done carefully, and is even more time-consuming than pasting the paper pattern. Therefore, there is a limit to the reduction in construction costs, and a great deal of skill is required to achieve a beautiful finish.

Moreover, the pattern is attached to the wall using a releasable adhesive, but if the adhesive is weak, it will peel off during spraying or float on the wall, making it impossible to obtain a beautiful joint pattern.On the other hand, if the adhesive is too strong, it will peel off. However, since adhesive strength is also affected by the condition of the wall surface, it was difficult to obtain a satisfactory product.

Furthermore, it is difficult to apply the method when the surface to be applied is horizontal, such as a floor or road surface. This is because if the work surface is vertical, such as a wall, the sprayed material on the peeled pattern will not fall onto the wall, and its own weight will work in the direction that helps the peeling, but if the surface is horizontal, the sprayed material that has fallen will not fall onto the wall. This is because it stains the construction area and requires considerable effort to lift the entire pattern.

However, the above-mentioned problems are caused by the fact that the pattern paper is peeled off to reveal the joint pattern, and that the pattern paper is made of a thin material such as film or cardboard.

As a result of various research into joint pattern forming members that can replace conventional paper patterns, the inventor of the present invention has developed a joint pattern forming member using expanded polystyrene as the material. However, according to the present invention, there is no need for peeling, so construction efficiency is greatly improved, and a joint pattern in which the ridge lines of the convex portions are clearly visible in the thickness of the ground can be easily and reliably obtained.

Hereinafter, the present invention will be described in detail based on embodiments shown in the drawings.

1 and 2 show an example of a joint pattern forming member 1 according to the present invention. This is made by laminating and integrating a release paper 3, which also has a joint pattern 31, on the back side of a polystyrene foam sheet 2, which has a joint pattern 21, via a releasable adhesive (adhesive) 4. Further, a covering material 5 having a similar joint pattern may be attached to the surface of the expanded polystyrene sheet 2 using a releasable adhesive 6. In this case, it is preferable to apply a release agent to the surface of the expanded polystyrene sheet 2. This joint pattern forming member 1 is made by laminating a Styrofoam sheet coated with a releasable adhesive on one side and a thin plastic film for covering coated with a releasable adhesive on one side on release paper, and then forming the joint pattern on the whole. Although it is formed by cutting a mold using a punching machine having a mold, unnecessary parts may be cut out using a laser beam or pressurized water. Alternatively, a plastic film or styrofoam sheet with a joint pattern punched out in advance, and release paper may be laminated together using a releasable adhesive. Furthermore, the expanded polystyrene sheet 2 may be formed by cutting or molded one by one. Although the thickness of these foamed polystyrene sheets 2 is arbitrary, it is preferably about 2 to 20 mm, particularly about 5 mm, for normal joints. Furthermore, the foamed polystyrene usually has an expansion ratio of about 20 to 60 times. In addition, in the figure, code 1a is a joint pattern part,
1b is a punching (cutting) part.

Next, an example of how to use the joint pattern forming member 1 will be explained. First, as shown in FIG. 3a, after smoothing and repairing the wall base 7 as the work surface (base adjustment), waterproof paint 8 is uniformly sprayed at a rate of, for example, about 0.3 kg/m ² . Part of this waterproof paint layer becomes the joint, so if it is colored, the joint will also take on that color. However, in the case of the product of the present invention, since the convex portion can be made thicker than the base, the base adjustment may be easily performed or may be omitted. After the paint 8 has dried, the joint pattern forming member 1 from which the release paper 3 has been removed is pasted.
For this pasting, marking is done on the paint surface 8 using, for example, white chalk, and the wall is attached to the entire wall surface. Next, as a convex surface forming material, a spray material 9 such as a skin type material mainly composed of an acrylic resin emulsion is applied.
Spray evenly on the wall. The amount of spraying is approximately 4 to 50 kg/m ^{2 (approximately 2 to 20 mm in terms of the thickness of the protrusions), although it depends on the thickness of the protrusions to be formed, that is, the thickness of the foamed polystyrene sheet 2} . In addition, if the spraying material 9 is mixed with a large amount of powder of brick, ceramics, natural stone, etc., an extremely realistic object can be obtained.

While the spray material 9 is semi-dry (immediately after spraying ~ 1)
After a certain period of time), only the covering material 5 is sequentially peeled off and removed as shown in FIG. 3c. Then, the sprayed material 9a slightly attached to the Styrofoam joint pattern 21 is removed, and the Styrofoam surface is exposed. Note that this peeling off of the covering material 5 can be performed extremely easily, unlike the peeling off of conventional paper patterns.

After the remaining spray material 9b has sufficiently solidified and dried (e.g. after about 24 hours), as shown in FIG.
Apply to a uniform thickness at a rate of ~0.5Kg/ ^m2 .
This transparent paint 10 gives the spray material 9b extrusion and durability, but on the other hand, the foamed polystyrene is melted by the solvent (thinner) contained in the transparent paint 10 and shrinks into a film shape. Especially when the foaming ratio of Styrofoam is high (50 to 60
3), the transparent paint dissolves easily, forming a joint A as shown in Figure 3e. In this way, a spray-painted wall surface 11 is obtained in which the joint portions A are finished in the color of the paint 8 and the convex portions B are finished in the color of the spraying material 9b, as shown in FIG. 3f. However, if the transparent paint 10 is not used, the Styrofoam sheet 2 is thick, or the foaming ratio of the Styrofoam is low (for example, 20~
30 times), the polystyrene foam may be melted by separately spraying a solvent such as thinner. If the styrofoam sheet 2 is colored with a pigment or the like, the waterproof paint 8 may be colorless or light colored, thereby saving on pigment. Furthermore, if you mix aggregate powder or attach aggregate particles to Styrofoam, these will remain on the joints, creating an unusual joint pattern. However, depending on the type of solvent, the polystyrene foam may turn into powder and be completely removed, but strong solvents may also attack the sprayed material, so the properties of the convex surface forming material must also be considered. be.

By the way, since the joint pattern forming member 1 of the present invention does not need to be peeled off from the wall surface unlike conventional products, a rewetting glue 12 is used instead of the adhesive 4 as shown in FIG. The construction surface can be wetted with water, or the joint pattern forming member 1 can be formed using only the expanded polystyrene sheet 2 as shown in FIG. Good too. Note that if the surface to be applied is horizontal such as a road surface, a material with weak adhesive strength may be used. Furthermore, FIG. 4c shows an example of a polystyrene foam sheet 2 in which the joint pattern 21 has a non-rectangular cross section. In this way, the rise around the convex portion can be made at a angle other than a right angle.

Next, FIG. 5 shows an example of use when the work surface is a road surface 13 such as a passage or a road. First, the joint pattern forming member 1 coated with re-wet glue 12 is pasted on the road surface base or top coat (FIG. 5a). Next, as a convex surface forming material, a troweling material 14 such as cement, leveling material, or resin emulsion type having excellent hardness and wear resistance is applied flat with a trowel (FIG. 5b). After the troweling material 14 has completely solidified and dried, the Styrofoam sheet 2 is crushed and removed using a rotary wire brush or the like to form joints, and the troweling material 14 is
A convex portion B appears (Fig. 5c). Furthermore, if necessary, the surface may be coated with a resin 15 having excellent wear resistance and strength (FIG. 5d).

In this example (FIG. 5), the waterproof layer is omitted, but if necessary, such as indoors, a waterproof layer may be provided on the road surface in advance. In addition, in the case of trowel coating, the trowel coating material 14 is placed on the Styrofoam sheet 2.
Although the covering material 5 is omitted in this example because it does not adhere much and the foamed polystyrene sheet 2 is crushed and removed using a wire brush, it is of course possible to use the covering material 5. However, in this example as well, it may be melted and shrunk with a solvent or coating material, or it may be melted with heat (heated steam, heated iron plate, flame, etc.). However, since Styrofoam changes color with heat, it is best to remove the melted and discolored material with a wire brush or the like. Furthermore, a combination of a solvent and a mechanical action such as a wire brush may be used.
The use of heat, mechanical action, or a combination of these and a solvent can also be considered in the case of walls (particularly in the case of short walls or small areas).

In addition to the walls and passageways mentioned above, the work can be applied to any surface such as pillars, ceilings, floors, stairs, etc., the interior and exterior surfaces of buildings, road surfaces, and even the surfaces of the panels and boards that make up these. . In addition to the above-mentioned convex surface forming materials, any material other than wall materials that can be applied with a spray gun, trowel, roller, etc. can be used. In addition, various changes can be made to the construction surface by applying a different color or a different type of convex surface forming material to each punched portion 1b of the joint pattern forming member 1, or by combining joint pattern forming members 1 using expanded polystyrene sheets 2 of different thicknesses. You can also let it stand.

Furthermore, as shown in FIG. 6a or FIG. 7a,
If a foamed polystyrene molded product 2' having a joint pattern formed with unevenness by molding or cutting on one side is used, it is possible to bring about a greater change in the construction surface.

First, Fig. 6a shows a part of the joint pattern 21' protruding to the surface side, and by using a troweling material such as wall material or concrete, a raised pattern with a joint pattern 21' as shown in Fig. 6b is created. can be made. The joint pattern forming member 1 is formed by punching a foamed polystyrene molded product having one side flat and a flat surface having an arbitrary uneven shape into a joint pattern using a laser beam or the like. Further, as the covering material 5, it is preferable to use a spray-type film forming material instead of pasting a plastic film.

Next, FIG. 7a shows another example in which the front side of the foamed polystyrene molded product 2' is flat and the back side has irregularities. By using this joint pattern forming member 1, it is possible to form a deep and shallow joint pattern on the construction surface as shown in FIG. 7b. However, in this case, it is preferable to use a well-flowing spray material or leveling material as the convex surface forming material, and to use a horizontal surface such as a road surface.
In these cases as well, the method of construction and modifications of the joint pattern forming member 1 are the same as in each of the above examples.

As detailed above, since the joint pattern forming member of the present invention is mainly composed of polystyrene foam material, it can be manufactured easily at low cost and is suitable for mass production, and can be easily melted and shrunk by solvent or heat. Since it can be mechanically crushed and removed, convex surface forming materials such as sprayed materials, concrete, and wall materials can be left on the surface to be constructed until they are completely dry and solidified. Therefore, there is no inconvenience that the ridge line of the convex part becomes unclear due to sagging, and the convex part can be made to have any thickness, and various shapes and uneven joint patterns can be freely formed depending on the shape of the polystyrene foam. Can be done.

On the other hand, 1/2 to 1/3 of the convex surface forming process can be omitted compared to those using conventional paper patterns, and each process can be simplified, making it possible to significantly reduce construction costs. Furthermore, joint patterns can be easily formed not only on vertical surfaces such as walls, but also on horizontal surfaces such as road surfaces, making it extremely useful.

[Brief explanation of the drawing]

FIG. 1 is a plan view showing an example of a joint pattern forming member according to the present invention, and FIG.
- An enlarged cross-sectional view of the X-ray part, and FIGS. 3a to 3f are explanatory diagrams showing the order of forming a joint pattern with sprayed material on a wall using the joint pattern forming member shown in FIG.
d and e are cut end views, c and f are perspective views, Fig. 4 a, b, and c are cross-sectional views showing other examples with different cross sections of the joints, and Fig. 5 a to d are troweling on the road surface. 6A is a perspective view showing another example of the joint pattern forming member, and FIG. 6B is the joint pattern forming member shown in FIG. 6A. Perspective view of joint pattern formed using
Figure a is a perspective view showing another example, Figure 7b
2 is a cut end view of a joint pattern formed using the joint pattern forming member shown in FIG. DESCRIPTION OF SYMBOLS 1... Joint pattern forming member, 2... Styrofoam sheet, 21... Joint pattern, 2'... Styrofoam sheet molded product, 21'... Joint pattern, 3...
... Release paper, 4, 6 ... Release adhesive, 5 ... Covering material, 7 ... Wall base, 9 ... Spraying material, 10 ...
...Transparent paint, 12...Rewet glue, 13...Road surface, 1
4... Troweling material, A... Joint area, B... Convex part, C
...Embossed pattern.

Claims (1)

[Scope of Claim for Utility Model Registration] 1. One surface of a Styrofoam material with a molded joint pattern is covered with a removable release material, an adhesive is applied to the back surface, and a release paper is pasted on the surface of the adhesive. A joint pattern forming member characterized in that it is a material. 2. The joint pattern forming member according to claim 1, wherein the joint pattern portions have partially different thicknesses.