JP3330360B2 - Plate and manufacturing method thereof - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to relates to various plates and manufacturing how such braille tiles.

[0002]

2. Description of the Related Art Conventionally, Braille tiles and Braille blocks installed on sidewalks and platforms are generally made of pottery or concrete. For the construction of this tile or block, a depression corresponding to the shape of the tile or block to be constructed on the underground such as asphalt or concrete is formed on the ground surface,
The method of sticking and embedding it inside with mortar is taken.

[0003]

However, conventional Braille tiles and blocks have a low mechanical strength such as a colored coating layer on the surface, so that they are liable to be partially damaged and have a problem in durability. In addition, when constructing such braille tiles or blocks, cut the block or asphalt painted road surface using a road cutter, dig up the existing tiles and blocks, cure them, and perform braille tiles and blocks. This requires a cumbersome operation of embedding, and requires time and effort in construction.

[0004] Therefore, an object of the present invention is to provide a plate and a manufacturing how durability and workability are improved.

[0005]

Plate and its <br/> manufacturing how the present invention SUMMARY OF] is a composed plate (2) and its manufacturing how a resin mortar (18) containing an acrylic resin (8) <br/> Yes. According to such a configuration, a plate excellent in durability and workability can be provided, and various road markings such as Braille tiles can be obtained.

The plate of the present invention according to claim 1 is characterized in that it is integrally formed of a resin mortar (18) containing an acrylic resin (8). That is, since a plate integrally formed of a resin mortar containing an acrylic resin has flexibility and toughness, even if a weight or a peeling force is applied by a pedestrian, a vehicle, or the like, the conventional peeling of the colored coating layer is performed. It does not cause peeling or deterioration such as partial damage, etc., and has excellent durability and weather resistance. Moreover, since the plate can be made sufficiently durable even if it is made thin,
Existing asphalt surface, concrete surface, block surface,
It can be installed directly on an existing road surface such as a tile surface, a metal surface, etc., and has no work such as digging up the road surface, and has excellent workability.

According to a second aspect of the present invention, there is provided a method for manufacturing a plate, comprising: filling a mold (20) of the plate (2) with a resin mortar (18) containing an acrylic resin (8); A step of curing the resin mortar within the step, and a step of removing the plate from the mold. That is, a female mold is formed or assembled as a mold having the shape of the plate to be manufactured. In addition, a fluid resin mortar containing a liquid acrylic resin is prepared. A predetermined amount of the resin mortar is filled into a previously prepared mold. A resin mortar containing an acrylic resin remarkably exhibits the properties of the acrylic resin, and is hardened in a short time in air to form a plate shape. After the resin mortar is cured, the plate is obtained by removing the resin mortar from the mold. In a resin mortar containing an acrylic resin, the molded plate can be easily removed from the mold without using a release agent by using a synthetic resin mold.

According to a third aspect of the present invention, in the method for manufacturing a plate according to the present invention, the resin mortar comprises dicyclopentenyloxyethylene and methacrylate to which methoxypolyethylene glycol # 900, methacrylate or other softener is added. In addition, a filler (12) and a fine aggregate (14) are compounded in an acrylic resin obtained by adding cumene hydroperoxide or another curing agent together with an accelerator. That is, such an acrylic resin has a property of blocking moisture and salt water, and the appearance of a plate is formed by blending a filler and a fine aggregate with the acrylic resin as a main component. In addition, a plate having the properties of an acrylic resin, having flexibility, and having high mechanical strength can be formed. That is, since the plate formed of such a resin mortar has heat moldability, for example, it can be formed into a desired shape by heating at the construction site, and molded or processed into a shape adapted to the uneven portion at the construction site. be able to. At room temperature, it has a shape memory property that cures and retains its shape. In addition, it has reproducibility and high followability such that it can be softened and peeled by heating after application. For this reason, it is possible to produce a tough and highly workable plate.

According to a fourth aspect of the present invention, there is provided a plate manufacturing method, wherein the resin mortar is obtained by mixing a filler, a fine aggregate and a pigment (10) with the acrylic resin. That is, a plate colored according to the color possessed by the pigment can be obtained by blending the pigment, and in a use such as a braille tile, it can be colored yellow by using a pigment such as graphite.

[0010]

[0011]

[0012]

[0013]

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to embodiments shown in the drawings.

FIG. 1 shows an embodiment of the plate of the present invention, and FIGS. 2 to 5 show an embodiment of the method of manufacturing the plate of the present invention. In this embodiment, generally,
The plate 2 called a Braille tile will be described as an example. The plate 2 has, for example, a plurality of protrusions 4 formed in a plurality of rows and a plurality of columns on the upper surface side of a flat plate portion 3 formed in a rectangular shape, and each protrusion 4 and the flat plate portion 3 are formed integrally. I have. The plate 2 is integrally formed of a resin mortar containing an acrylic resin.

The raw materials of the plate 2 include an acrylic resin 8, a pigment 10 and a filler 1 in a container 6 made of synthetic resin.
2. A resin mortar 18 obtained by putting fine aggregate 14 and stirring with a stirrer 16 is used.

Describing the raw materials of the plate 2, the composition and structural formula of the main component and additives constituting the acrylic resin 8 are as shown in Table 1.

[0018]

[Table 1]

The resin mortar 18 is formed by blending the acrylic resin 8, the pigment 10, the filler 12, and the fine aggregate 14, and the form is as shown in Table 2, and the blend is as follows. It is as shown in Table 3. Since the fine aggregate 14 is related to the viscosity, it is added as necessary.

[0020]

[Table 2]

[0021]

[Table 3]

The pigment 10 is selected from, for example, titanium oxide, calcium carbonate, and graphite, and is used in accordance with the application such as a braille tile to obtain a desired color such as yellow.

Before forming the plate 2, as shown in FIG.
The mold 20 is formed in advance. The molding die 20 is a container made of a synthetic resin, and has a recess 22 and a projection 2 inside.
4 and the like are formed according to the shape of the plate 2 to be manufactured.

As shown in FIG. 4, when a predetermined amount of resin mortar 18 is poured from the container 6 into the inside of the molding die 20, the shape of the concave portion 22 and the projection 24 is formed inside the molding die 20 due to its fluidity. Along it, and its surface becomes a horizontal plane. Then, when left in the state shown in FIG.
The resin mortar 18 hardens at room temperature, that is, the resin mortar 18 is molded according to the internal shape of the mold 20 and solidified. In this state, when the cured resin mortar 18 is taken out of the molding die 20, the plate 2 shown in FIG. 1 is obtained. Burrs and the like generated on the side surface can be cut off with a knife or the like.

The surface of the plate 2 depends on the properties of the molding surface of the molding die 20. To obtain a glossy surface, the molding surface of the molding die 20 may be made a glossy surface.

Here, the characteristics of the acrylic resin 8 contained in the resin mortar 18 will be described. The acrylic resin 8 is mainly composed of dicyclopentenyloxyethylene and methacrylate mixed with a softening agent. It is obtained by selectively adding any of the above-mentioned curing agents, retarders or accelerators to the main agent at a fixed ratio, or by adding all of the retarders, curing agents and accelerators to the main agent at a fixed ratio. . The acrylic resin 8 is obtained by mixing and stirring the accelerator with the main agent, and then mixing and stirring the curing agent.
It has a low viscosity of 80 to 100 mPa · a, has excellent impregnation properties, and has the property of penetrating into voids and asphalt walls of concrete. Moreover, it has the property of creeping up on the surface of the adhered substance due to the capillary phenomenon, and strongly adheres to the dispersed aggregate. Since the acrylic resin 8 is a thermosetting resin, it does not liquefy even after reheating after being cured. In addition, since the resin is solidified by an exothermic reaction, the curing time is shorter as the amount of the resin is larger,
The thicker the film, the faster it is, and the thinner it is later.

The acrylic resin 8 is prepared by adding a hardener, a retarder, or an accelerator to the main component in a liquid state at a fixed ratio at a construction site, or adding a retarder, a hardener, and a promoter to the main component. All of the agents can be added and blended in a fixed ratio. The acrylic resin 8 is a three-component curing reaction type resin, and its curing time varies depending on the air temperature, the resin temperature, and the temperature of the object to be coated.
It cures in minutes, but it is 1 to 1
It takes about 2 hours.

Next, FIG. 6 shows a temperature rise and a cured state in a relatively high temperature period after the mixing of the acrylic resin 8 in which the main component, the accelerator and the curing agent are mixed. In this case, the temperature is 24 ° C., the humidity is 42%, the initial resin temperature is 26 ° C., and the measured amount is 100 g. In FIG. 6, period A is in a liquid state and does not change, period B is a rising period of viscosity, period C is rapidly rubberized from gelling, period D is an elastic rubber state rapidly hardened,
Period E is a complete cure. After 3 minutes at 69 ° C., it was cured. In other words, it can be seen that at a temperature of about 24 ° C., after mixing the main agent, the accelerator, and the curing agent, the mixture rapidly changes from a liquid state to a rubber state and cures in about 25 minutes.

FIG. 7 shows a temperature rise and a cured state in a relatively low temperature period after mixing the acrylic resin 8 in which the main component, the accelerator and the curing agent are mixed. In this case, the temperature is 14 ° C., the humidity is 75%, the initial resin temperature is 15 ° C., and the measured amount is 100 g. In FIG. 7, period A is in a liquid state without any change, period B is a period in which the viscosity is increasing, period C is a period in which the viscosity increases, and
Is rapidly gelling, period E is a phenomenon immediately before curing, period F is rubberized and elastic, and period G is an elastic rubber state which is rapidly cured. Cured at 69 ° C. for 2 minutes. In other words, it can be seen that in a cold season at an outside air temperature of 14 ° C., a curing time that is about twice as long as that in a high temperature season is required.

FIGS. 8 and 9 show a cured state of the acrylic resin 8 after the curing agent is mixed. In the case of FIG. 8, at an external temperature of 27 ° C. and a humidity of 45%, complete curing occurred in 31 minutes and 30 seconds after the mixing of the curing agent, with heat generation. In addition, in the case of FIG. 9, at an outside air temperature of 28 ° C. and a humidity of 50%, complete curing occurred at 31 minutes and 00 seconds after the mixing of the curing agent, with heat generation.

FIG. 10 shows a cured state of the acrylic resin 8 depending on whether or not a retarder is mixed. Delaying agent 0
%, The curing is delayed by mixing 1% of the retarder.

The relationship between the acrylic resin 8, the pigment 10 and the fine aggregate 14 in the resin mortar 18 is such that a color tone corresponding to the pigment 10 is obtained and when the content of the fine aggregate 14 is small, the acrylic The characteristics of the resin 8 become remarkable, and when the content of the fine aggregate 14 increases, the characteristics of the fine aggregate 14 become remarkable. That is, if cement is used for the fine aggregate 14, the characteristics of the cement become remarkable.

Further, since the plate 2 formed of such a resin mortar 18 has heat moldability, it has the characteristics of the acrylic resin 8 and the resin mortar 18,
For example, it can be formed into a desired shape by heating at the construction site, can be molded or processed into a shape adapted to the irregularities at the construction site, has a shape memory property that cures at room temperature and retains its shape. In addition, it has reproducibility and high followability such that it can be softened and peeled by heating after application. For this reason, it is possible to produce a tough and highly workable plate.

Next, 11 to 13, up to the present invention
1 shows an embodiment of a construction method using a rate . FIG. 11 shows a base 30 at a place where the plate 2 is to be applied. The base 30 has a plurality of recesses 32 and a plurality of cracks 34. After marking out a place to be set on the surface 36 of the base 30, cleaning is performed.

The resin mortar 18 shown in FIG.
This resin mortar 18 is applied to the surface 36 of the base 30 as shown in FIG. 12 to form a resin mortar layer 38. The resin mortar 18 forming the resin mortar layer 38 is
Because of its permeability, it penetrates into the recesses 32 and cracks 34 to form a resin mortar layer 38 and is integrated with the base 30. Before the resin mortar layer 38 is cured, the plate 2 is placed horizontally on the surface thereof as indicated by an arrow A.

The resin mortar layer 38 is cured at room temperature, and after the curing, as shown in FIG. 13, the resin mortar layer 38 is interposed between the underlayer 30 and the back surface of the plate 2 and, 2 are integrated. As a result,
The plate 2 is firmly fixed to the surface 36 of the base 30 by the resin mortar layer 38 and is installed.

The resin mortar layer 38 is made of the same material as that of the plate 2, has a high affinity for both, and provides a strong adhesive strength. In this case, plate 2 in this construction method
For this, a conventionally used plate made of pottery or porcelain may be used.

Next, FIGS. 14 and 15 show another embodiment of the plate and the method of manufacturing the same according to the present invention.
As shown in FIG. 14, the protrusion 4 of the plate 2 and the flat plate 3
The glass beads 42 may be bonded to the surface of the substrate. In this case, the resin mortar 18 may be poured by using a mold 20 as shown in FIG. 3 and laying glass beads 42 therein. Further, when a flat portion is formed partially in the concave portion 22 of the mold 20 and irregularities are formed in the flat portion and the resin mortar 18 is poured into the flat portion, as shown in FIG. The plate 2 having a decorative surface such as the uneven surface 44 and a non-slip formed on the top can be manufactured.

Further, in the embodiment has been described taking a braille tile example, plates and the manufacturing how the present invention
Is applied to road surface materials such as exterior wall tiles, decorative tiles used for roads and buildings, decorative tiles installed on the floor of the building, etc., their construction, construction materials and their construction. It is not limited to the form.

[0040]

As described above, according to the present invention,
The following effects can be obtained. a It is possible to provide a plate having excellent flexibility and mechanical strength, and having high durability and workability. b The plate made of resin mortar can provide sufficient durability even if it is formed thin, so the existing asphalt surface,
It can be directly installed on an existing road surface such as a concrete surface, a block surface, a tile surface, a metal surface, etc., and it is possible to obtain high workability without trouble such as digging up the road surface. c. A plate can be manufactured by pouring a resin mortar into a molding die and easily curing the resin mortar at room temperature or the like, thereby reducing manufacturing costs. The manufactured plate can be formed into a desired shape by heating at this construction site, it can be molded or processed into a shape adapted to the uneven parts of the construction site, and it hardens at room temperature and retains its shape Can be. Also, after the application, it can be softened and peeled by heating.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an embodiment of a plate of the present invention.

FIG. 2 is a view showing a step of forming a resin mortar which is an embodiment of the method of manufacturing a plate of the present invention.

FIG. 3 is a longitudinal sectional view of a molding die used in a method of manufacturing a plate.

FIG. 4 is a cross-sectional view showing a step of filling a resin mortar into a molding die.

FIG. 5 is a cross-sectional view showing a curing step of a resin mortar filled in a molding die.

FIG. 6 is a diagram showing a cured state of an acrylic resin.

FIG. 7 is a diagram illustrating a cured state of an acrylic resin.

FIG. 8 is a view showing a cured state of an acrylic resin.

FIG. 9 is a diagram showing a cured state of an acrylic resin.

FIG. 10 is a view showing a cured state of an acrylic resin.

FIG. 11 is a cross-sectional view showing a base on which a plate is to be applied.

FIG. 12 is a partial sectional view showing a resin mortar layer and a plate on a base surface.

FIG. 13 is a cross-sectional view showing a fixed state of a plate by a resin mortar layer.

FIG. 14 is a cross-sectional view showing another embodiment of the plate and the method of manufacturing the same according to the present invention.

FIG. 15 is a cross-sectional view showing another embodiment of the plate and the method of manufacturing the same according to the present invention.

[Explanation of symbols]

 2 Plate 8 Acrylic resin 10 Pigment 12 Filler 14 Fine aggregate 18 Resin mortar 20 Mold 30 Substrate 38 Resin mortar layer

Claims (4)

(57) [Claims] 1. A plate formed integrally with a resin mortar containing an acrylic resin. 2. A step of filling a resin mortar containing an acrylic resin into a mold of a plate, a step of curing the resin mortar in the mold, and a step of taking out the plate from the mold. A method for producing a plate, characterized in that: 3. The resin mortar is prepared by adding cumene hydroperoxide or other material together with an accelerator to a main agent obtained by adding methoxypolyethylene glycol 900, methacrylate or other softener to dicyclopentenyloxyethylene and methacrylate. 3. The method for producing a plate according to claim 2, wherein a filler and a fine aggregate are blended with an acrylic resin to which a curing agent has been added. 4. The method for manufacturing a plate according to claim 2, wherein the resin mortar is obtained by mixing a filler, a fine aggregate and a pigment with the acrylic resin.