KR101627582B1 - Modular assembly tile including enhanced connection structure for assembling - Google Patents

Abstract

The present invention relates to a prefabricated tile in the form of a module that can be used in a sports arena, wherein a prefabricated tile according to an embodiment of the present invention includes a rectangular base frame including a plurality of plaid patterns; An X-shaped moiré pattern crossing the four vertices of the lattice pattern is formed, the moiré pattern being formed on an upper portion of the lattice pattern and exposed to the outside; A plurality of support legs protruding from a vertex of the grid pattern and an inner intersection of the wave pattern to a lower surface of the base frame; A connection part protruding from at least one lateral side of two adjacent side surfaces of the base frame and inserted into a side surface of the base frame opposite to the adjacent tile when connected to the adjacent tile; Wherein the connection portion is inserted into a side surface corresponding to two adjacent side surfaces of the base frame at a position corresponding to the connection portion; A locking protrusion for preventing the coupling portion from being detached after being inserted into the coupling portion; And a flip formed on the inside of the connection portion, the flip being protruded outwardly from a side surface of the base frame, the side surface being connected to the side surface of the base frame and gradually extending from the side surface of the base frame toward the other side.

Description

[0001] MODULAR ASSEMBLY TILE INCLUDING ENHANCED CONNECTION STRUCTURE FOR ASSEMBLING [0002]

The present invention relates to a module-type prefabricated tile that can be used in a sports arena, and more particularly, to a module-type prefabricated tile having a connection structure with improved coupling performance between tiles.

As the quality of life gradually improves, demand for various leisure and leisure facilities is increasing, and in particular, demand for public sports facilities and playgrounds, which are easy to maintain and manage, is increasing.

Various types of flooring for sports coats have been developed for the purpose of shock absorbing and securing of roads in such athletic facilities and athletic fields. Particularly, flooring materials of prefabricated playground by plastic injection are widely used as a substitute for hard court .

Korean Patent No. 0975984 relates to a "prefabricated playground floor material and a method for manufacturing the same", which discloses a prefabricated playground floor material improved in design characteristics, shock absorbing functions and surface friction characteristics, and a manufacturing method thereof.

Korean Patent No. 0901434 relates to a "prefabricated sports court", which maintains a continuous square lattice structure inside a plastic tile or floor lid, and has a vertex and a corner support for dispersing the load received by the prefabricated sports court Shaped sports coats block including a leg and an X-shaped reinforcing rib formed in the inside of the lattice structure, and a rectangular shaped sports court block having a rectangular lattice structure in one line while having a rectangular outer frame part as a component Lt; / RTI >

Such flooring material or coat blocks are laid on the indoor and outdoor playgrounds and used as floor surfaces for sports activities.

However, according to the prior art, the flooring or coat block is a simple straight and oblique structure made of plastic and forms a square or rhombus pattern on the surface, and due to the nature of the sports coat, There is a problem in that the user is slippery or falls.

In addition, when the above-mentioned flooring material or coat block is applied to an outdoor playground, dew or rainwater is formed on the surface of the flooring / block to cause slippage, thereby causing a fall accident and serious injury.

In addition, when the module type flooring / block is laid in a large playground, there is a problem that the degree of coupling between the flooring materials is lowered in the process of assembling a large number of tiles / blocks and breakage and warping of the joints occur.

In addition, due to the characteristics of the flooring / block, there is a problem in that the means for absorbing the impact accompanying the sports activity is insufficient and the activity and stability of users are deteriorated.

Korean Patent No. 10-0975984 Korean Patent No. 10-0901434

SUMMARY OF THE INVENTION It is an object of the present invention to provide a module-type prefabricated tile capable of minimizing slippage by increasing the coefficient of friction.

It is also an object of the present invention to provide a module-type prefabricated tile that prevents dew or rainwater from being deposited on the flooring / block surface when the flooring or coat block is applied to an outdoor playground.

It is another object of the present invention to provide a module-type prefabricated tile which has a high degree of freedom in connection and prevents breakage and warping of a joining portion when a module type tile is installed on a playground.

It is also an object of the present invention to provide a prefabricated tile provided with means for absorbing impacts.

According to another aspect of the present invention, there is provided a prefabricated tile comprising: a rectangular base frame including a plurality of grid patterns; An X-shaped moiré pattern crossing the four vertices of the lattice pattern is formed, the moiré pattern being formed on an upper portion of the lattice pattern and exposed to the outside; A plurality of support legs protruding from a vertex of the grid pattern and an inner intersection of the wave pattern to a lower surface of the base frame; A connection part protruding from at least one lateral side of two adjacent side surfaces of the base frame and inserted into a side surface of the base frame opposite to the adjacent tile when connected to the adjacent tile; Wherein the connection portion is inserted into a side surface corresponding to two adjacent side surfaces of the base frame at a position corresponding to the connection portion; A locking protrusion for preventing the coupling portion from being detached after being inserted into the coupling portion; And a flip formed on the inside of the connection portion, the flip being protruded outwardly from a side surface of the base frame, the side surface being connected to the side surface of the base frame and gradually extending from the side surface of the base frame toward the other side.

Preferably, the base frame, the base frame surface layer, the support leg, the connecting portion, the engaging portion, the engaging projection, and the flip are formed by injection molding using polypropylene (PP) or polyphenylene sulfide (PPS) .

Preferably, the moire pattern of the base frame surface layer is configured to cross at least two curves forming a wave pattern so that the surface friction coefficient is larger than the "X " -shaped pattern, and the curvature of the curve is 5 And not more than 30 degrees.

Preferably, the projection of the embossed pattern or the recess of the embossed pattern is formed at the inner intersection of the wave pattern at the surface layer of the base frame or at the vertex of the pattern of the plaid pattern of the base frame.

Preferably, the base frame is formed with at least one cut-out surface crossing the corresponding two sides of the base frame so that the assembled tile can be equally divided into N equal parts, And a locking protrusion for preventing the connection portion from being coupled to the connection portion at a position corresponding to the connection portion.

Preferably, the incision surface is formed to have a predetermined width capable of absorbing a stress or impact generated in the horizontal direction of the surface of the assembled tile.

Preferably, the cut-off surface includes an impact absorbing portion capable of absorbing a stress or an impact generated in the horizontal direction of the surface of the pre-fabricated tile.

Preferably, at least one of the support legs further includes a buffer member of an elastic material capable of absorbing impact generated in the vertical direction of the surface of the prefabricated tile.

Preferably, the cushioning member is detachably attachable to the support leg, and is equal to or larger than the length of the support leg when attached to the support leg.

Preferably, the connection portion is formed in a circular shape while enclosing the flip.

Preferably, the support leg includes a first support leg formed at the vertex of the grid pattern and a second support leg formed at an intersection of the curves inside the grid pattern, The second support legs are different in thickness and height.

According to the present invention, it is possible to prevent slippage of the floor by increasing the coefficient of surface friction of the tile, thereby preventing the user from falling down or causing injury.

In addition, when the above-mentioned flooring material or coat block is applied to the outdoor playground, it is prevented that dew or rainwater is formed on the surface of the flooring / block, thereby preventing slippage, .

In addition, when a module type flooring / block is laid in a large playground, there is an effect of increasing the degree of freedom of bonding in the process of joining a large number of tiles / blocks and minimizing the breakage and warping of the bonding site.

In addition, by providing a means for absorbing impact, there is an effect that the activity and stability of users can be enhanced.

1 is a perspective view of a prefabricated tile according to a first embodiment of the present invention;
2 is a partially enlarged view of a prefabricated tile according to a first embodiment of the present invention;
3 is a perspective view of a prefabricated tile according to a second embodiment of the present invention.
4 is a partial enlarged view of a prefabricated tile according to a second embodiment of the present invention;
5 is a plan view of a prefabricated tile according to one embodiment of the present invention.
6 is a bottom view of a prefabricated tile according to an embodiment of the present invention.
7 is a side view of a prefabricated tile according to an embodiment of the present invention.
8 is an enlarged view of a bottom portion of a prefabricated tile according to an embodiment of the present invention.
9 is a plan view of a prefabricated tile having a cut surface according to another embodiment of the present invention.
10 is a reference diagram for explaining an impact absorbing mechanism of a prefabricated tile according to an embodiment of the present invention;

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. The configuration of the present invention and the operation and effect thereof will be clearly understood through the following detailed description. Before describing the present invention in detail, the same components are denoted by the same reference symbols as possible even if they are displayed on different drawings. In the case where it is judged that the gist of the present invention may be blurred to a known configuration, do.

The prefabricated tiles referred to herein are multipurpose prefabricated flooring materials that can be installed in an indoor or outdoor athletic field, a flooring floor, a verandah, etc., and may also be referred to as sports coats, blocks, tiles and the like. Hereinafter, tiles will be used for the sake of convenience of description, but the present invention is not limited to the terms used herein. In addition, the tiles used in the present specification may be used for various purposes in a variety of indoor and outdoor spaces as well as sports fields.

1 is a perspective view of a prefabricated tile according to an embodiment of the present invention.

As shown, the assembled tile 100 according to an embodiment of the present invention includes a base frame 10 configured in a square or rectangular shape, a plurality of support legs (not shown) protruding toward the lower surface of the prefabricated tile 100 (C, D) of the base frame 10 protruding in at least one lateral direction on adjacent two side surfaces A, B of the base frame 10 and opposed to each other when connected to adjacent tiles 100, And a connecting portion 30 which is inserted into the inside of the connecting portion 30.

The base frame 10 has regularly formed therein a plurality of grid pattern 12 patterns in which a wave pattern 11 in which at least two curves intersect is formed.

The support legs 20 are protruded by a predetermined length so as to support the bottom surface of the base frame 10 from the intersection of the vertices of the grid pattern 12 and the curved lines inside the grid pattern.

The side walls C and D of the base frame 10 protrude in at least one lateral direction from the adjacent two side surfaces A and B of the base frame 10 and are opposed to each other when the adjacent tile 100 is connected. The connection portion 30 is formed. According to the present embodiment, a total of twelve connecting portions 30 are formed by six each on the two adjacent side surfaces A and B of the base frame 10.

The connection portions 30 are prevented from being disengaged from the side portions C and D corresponding to the two adjacent side surfaces A and B of the base frame 10 at positions corresponding to the connection portions 30 The engaging portion 40 is formed. At least one hook (41) is formed in the engaging portion (40) to prevent detachment of the connecting portion (30) after insertion and to maintain a firm coupling between the tiles.

The base frame 10, the support legs 20, the connecting portions 30 and the hook connecting portions 40 constituting the assembled tile 100 are made of a relatively rigid material such as polypropylene (PP) or polyphenylene sulfide (PPS) And can be integrally formed by an injection molding method using a material.

PPS (polyphenylene sulphide) resin is one of the thermoplastic plastics (crystalline polymer) that has the best dimensional stability. It maintains its strength even in high temperature and erosive environment, and has excellent chemical resistance and heat resistance at the same time. Can also be used. In particular, PPS has a strong mechanical strength and low temperature dependency. Further, the PPS resin is an environmentally friendly flame retardant resin which can be flame retarded without a flame retardant because it has its own flame retardancy, and it is preferable to use glass fiber or inorganic material in order to increase the strength.

On the other hand, since the PP or PPS material used for the prefabricated tile is subject to shrinkage and expansion due to the external temperature, in order to solve this problem, water or glass fiber is added in the injection molding process It is possible to form numerous infinitesimal bubbles inside the material of the prefabricated tile by performing the foam molding.

2 is a partially enlarged view of a prefabricated tile according to a first embodiment of the present invention.

The prefabricated tile according to the present invention is installed in indoor or outdoor playgrounds, stadiums and various spaces to provide a function as a kind of flooring material for users to freely perform sports activities. Due to these characteristics, on the surface of the prefabricated tile, the contact points of the user's sports activities occur, resulting in severe friction between the shoe bottom surface and the prefabricated tile surface. Further, when a prefabricated tile is used as a space for providing intense sports activities in which sudden turn, stop, and jump operations occur, it is preferable that a surface with a high friction coefficient is provided as much as possible so that the user's driving ability can be sufficiently exhibited. However, according to the background art, since the surface of the product is a straight line, an oblique line, a rhombus, or a square pattern, the coefficient of friction is not high and the bottom surface is relatively slippery, . In addition, there has been a case where a user is seriously injured due to a fall caused by a slip in the course of using conventional products. In order to solve the above problems, the present invention proposes a shape and a pattern of a prefabricated tile in which the surface friction coefficient of the prefabricated tile can be maximized.

As shown, a plurality of grid patterns 12 are formed in the base frame 10. In the inside of the grid pattern 12, a wave pattern 11 in which at least two curves intersect is formed.

That is, the conventional product forms a surface pattern of a straight line, a diagonal line, a rhombus, or a quadrangle. However, as in the present embodiment, by forming the lattice pattern 12 and the wave pattern 11, So that the surface friction coefficient can be made larger than that of the product. Further, the wave pattern 11 inside the lattice pattern 12 is formed in a curved shape that maximizes the friction area, not a combination of simple lines, thereby maximizing the surface friction coefficient per unit area. As shown in Figs. 2 (b) and 2 (c), the wave pattern 12 pattern in which the two curves cross each other is formed by intersecting four vertexes of the lattice pattern 12, The curves are formed so as to cross in an X-shape. Preferably, the curvature &thetas; of the curve forming the wave pattern is comprised between 5 degrees and 30 degrees.

In addition, according to an embodiment of the present invention, the grooved pattern grooves 13 are further formed in the lattice pattern 12 or the wavy pattern 11 of the surface of the base frame 10. In general, prefabricated tiles can be installed in exposed areas such as a playground, and water droplets may form on the surface due to external moisture such as rain, snow, and dew. If water droplets form on the surface of the prefabricated tile, the user may slip while operating on the prefabricated tile surface, resulting in serious injury. In this embodiment, the grooves 13 are formed on the surface to prevent this. The grooved grooves 13 serve as a number for facilitating drainage of water droplets formed on the surface of the prefabricated tile.

The engraved grooves 13 may be circular, straight or cross-shaped. By forming the depressed grooves 13 on the surface of the prefabricated tile in this way, it is possible to prevent water droplets from forming on the surface due to rain or dew formation.

According to another embodiment of the present invention, protrusions of embossed pattern 12 or wavy pattern 11 may be formed on the surface of the base frame 10.

FIG. 3 and FIG. 4 are a perspective view and a partial enlarged view of a prefabricated tile according to a second embodiment of the present invention.

As shown, the prefabricated tile 200 according to the present embodiment includes a rectangular base frame including a plurality of grid patterns 52, and a plurality of grid patterns 52 having a curvature that intersects the four vertices of the grid pattern 52 of the base frame A surface layer 51 in which a genuine X-shaped wavy pattern 51 is formed on the upper surface of the base frame and is exposed to the outside, and a surface layer 51 formed on the lower surface of the base frame from the intersection of the vertex of the plaid pattern 52 and the wavy pattern 51. [ A plurality of support legs 20 protruding toward the side of the base frame and protruding toward at least one of the two side surfaces A and B of the base frame, (Not shown).

Referring to FIG. 4A, the prefabricated tile 200 according to the second embodiment includes a surface layer 51 (a wavy pattern layer) exposed at the top, a base frame 52 (a plaid pattern layer) formed in a lattice pattern, And a support leg 20 as shown in FIG.

That is, in the first embodiment described above, the wavy pattern 11 and the lattice pattern 12 are composed of one base frame 10, but in the present embodiment, the wavy pattern 51 and the lattice pattern 52 Are separated upward and downward to constitute the base frame 50.

The structure of the supporting legs 20, the connecting portion 30, the injection molding method of the prefabricated tile, and the like are the same as those of the first embodiment, and a detailed description thereof will be omitted.

In addition, the curvature? Of the curved line forming the wavy pattern and the grooves 14 of the intaglio pattern formed on the wavy pattern 11 of the surface are the same as those of the first embodiment described above, and a detailed description thereof will be omitted.

Hereinafter, the structure and function of the prefabricated tile will be described in more detail with reference to a plan view, a bottom view, and a side view of the prefabricated tile according to an embodiment of the present invention.

FIG. 5 is a plan view of a prefabricated tile according to an embodiment of the present invention, FIG. 6 is a bottom view of a prefabricated tile according to an embodiment of the present invention, FIG. 7 is a side view of the prefabricated tile according to an embodiment of the present invention to be.

As shown in FIG. 5, at least one side surface (A, B) of the prefabricated tile is inserted into a side surface (C, D) of the base frame protruding from at least one lateral direction and opposed to the adjacent tile The connection portion 30 is formed. According to the present embodiment, a total of twelve connecting portions 30 are formed by six each on the two adjacent side surfaces A and B of the base frame. However, the number of the connection portions 30 can be freely changed according to the degree of design freedom.

6, the connection portions 30 are fastened to corresponding positions of the connection portions 30 in the side surfaces C and D corresponding to the two adjacent side surfaces A and B of the base frame, The engaging portion 40 is formed to prevent it from being detached. At least one hook (41) is formed in the engaging portion (40) to prevent detachment of the connecting portion (30) after insertion and to maintain a firm coupling between the tiles.

As shown in the figure, the connecting portion 30 is projected in a semicircular ring shape and is fastened so that the engaging portion 40 is inserted into the inner diameter while the engaging portion 40 corresponding to the connecting portion 30 is wrapped inward. At this time, the height of the outermost peripheral surface of the connection portion 30 is formed to be smaller by h than the height adjacent to the side surface of the base frame. Therefore, the hook 41 in the form of a locking protrusion formed to prevent the coupling portion 30 from being detached after being coupled to the coupling portion 40 can serve as a latch for the outermost peripheral face of the coupling portion, And maintain a solid connection between the tiles.

Referring to FIG. 5, a flip 31 is formed inside the connection portion 30, one side of which is connected to the side of the base frame, and the other side of the flip 31 protrudes outwardly from the side of the base frame.

After the tiles are combined, the flip 31 adjusts the clearance between the products and absorbs shocks. That is, a clearance of approximately 1 mm to 10 mm may occur at the time of coupling between the tiles, and the horizontal direction impact of the combined tile may be absorbed through the flip 31 formed at the side portion.

Also, since the flip 31 is relatively soft, the flip 31 can be easily broken during the transportation of the tile or the assembling process of the tile. However, according to the present embodiment, since the flip 31 is formed inside the connection portion 30, it is possible to protect the flip 31 from the breakage. In addition, the elasticity of the flip 31 may be used to maintain close contact and firm coupling between the tiles.

According to another embodiment of the present invention, the flip 31 may be protruded from the side surface of the base frame by using a flexible material such as rubber or a flexible material such as rubber.

Referring to FIG. 6, a part of the support legs 20 of the prefabricated tile is combined with a buffer member of an elastic material capable of absorbing impact generated in the vertical direction of the prefabricated tile surface. The cushioning member may be formed in the shape of a shock absorbing ring 60. The cushioning force may be adjusted in consideration of the characteristics of the bottom surface on which the tile is installed, the material of the tile, , The material or the length can be freely changed. Alternatively, it may be formed as a separate member from the prefabricated tile, and may be detachable as necessary.

Referring to FIG. 5, a cut surface 70 is formed in the shape of a cross (+) near the center of the prefabricated tile.

When a module type flooring or a tile is laid in a large playground, the degree of coupling between the tiles decreases in a construction process of joining a large number of tiles, and a part of the tile is frequently cut depending on the site conditions. In the case of conventional tiles, when it is necessary to cut some of the tiles, a separate cutter and a finishing process are required, which has disadvantages in assembly freedom and construction.

However, in the assembled tile according to the present embodiment, when the partitioned tile is required to be partitioned in the field condition and construction process, the incision surface 70 is formed at the central portion, .

In addition, the engaging portion 42 is formed in the incision surface 70. Therefore, even if the prefabricated tile is partitioned through the incision surface 70, it is possible to form the coupling structure between the other tiles and the partitioned tiles by forming the engaging portion 42 inside the cut surface.

FIG. 8 is an enlarged bottom view of a prefabricated tile according to an embodiment of the present invention. FIG.

8, a clearance W having a predetermined width is formed on the inside of the incision surface 70 so as to absorb the stress generated in the horizontal direction of the surface of the prefabricated tile, A buffer member 71 is formed in the space formed. Preferably, the width of the clearance W is 1 mm to 5 mm.

Through the clearance W and the buffer member 71, not only the shock absorption in the horizontal direction in the direction of the surface of the assembled tile but also the cleavage at the incision in the assembled type tile can be finished neatly. Also, since the clearance W and the buffer member 71 are formed at the center of the prefabricated tile, deformation and warping of the prefabricated tile can be alleviated even if the prefabricated tile contracts / expands.

As described above, the assembled tile according to the present invention includes components such as the flip 31, the shock absorbing ring 60, the clearance W of the cut-off surface 70, and the buffer member 71, Thus, when the user performs a sudden stop or turn operation during start-up, the shock transmitted to the joint can be absorbed in the assembled tile, thereby protecting the user's joint.

On the other hand, in order to install the prefabricated tile, the foundation bottom layer is usually made of concrete or ascon. At this time, due to the fine irregularities generated on the surface of the foundation floor, the tile is not completely adhered to the floor surface, and lifting phenomenon occurs. When this lifting phenomenon occurs, when the ball is bound, such as a basketball or a tennis ball, the ball bounding becomes irregular and the feeling of use is rapidly deteriorated. However, in the present invention, a large number of support legs 20 are formed in order to minimize the gap on the bottom surface.

Referring to Fig. 8, the support leg 20 includes a first support leg 21 having a somewhat thick cross shape formed at a vertex of a lattice pattern, a second support leg 21 having a circular shape, which is formed at the intersection of the wavy pattern, And a support leg (22).

The first support legs 21 and the second support legs 22 are not equal in height but have a difference of about 1 mm to 2 mm so as to support fine protrusions on the bottom surface, .

9 is a plan view of a prefabricated tile having a cut surface according to another embodiment of the present invention.

In the above-described embodiment, a cut surface is formed in a cross shape so that the assembled tile can be cut into the same four surfaces. However, in this embodiment, the cut surface is formed so that the prefabricated tile can be cut into the same 8 surfaces.

That is, four "\", "/", "-", and "|" crossing the corresponding two sides of the base frame, And a cut surface is formed in a shape maintaining a predetermined width.

In addition, the base frame adjacent to each of the cut-away surfaces includes a coupling portion that prevents the coupling portion from being coupled to the coupling portion at a position corresponding to the coupling portion.

As described above, according to the present invention, since the cut-away surface of the prefabricated tile is formed in various forms, even if the necessity of partitioning the prefabricated tile frequently occurs in the field conditions and the construction process, the prefabricated tile can be easily partitioned through the cut- .

10 is a reference view for explaining an impact absorbing mechanism of a prefabricated tile according to an embodiment of the present invention.

As described above, the prefabricated tile according to the present invention includes a cushioning member such as a shock absorbing ring 60 capable of absorbing shock at the lower portion of the prefabricated tile so as to absorb impact applied in various directions including vertical and horizontal . In addition, a cut surface 70 is formed at the center of the prefabricated tile, and a shock in the horizontal direction can be absorbed through the clearance W formed on the cut surface 70 and the buffer member 71.

That is, the prefabricated tile according to the present invention primarily absorbs the impact generated vertically as shown in FIG. 9 (a) through the shock absorbing ring 60, Is designed to absorb secondarily the impact in the horizontal direction through the cushioning structure designed in Fig. In this case, the structure that absorbs the impact generated in the horizontal direction is formed as an X-shaped shape, thereby maximizing the shock absorbing function so that the force is uniformly dispersed. Further, a circular groove is formed at the point where the incision is started, .

Meanwhile, the PP or PPS material used for the prefabricated tile is subject to shrinkage and expansion due to the external temperature, and therefore, the present invention proposes a tile molding method that can fundamentally solve the problem.

The base frame, the connecting portion, the engaging portion, and the supporting legs constituting the assembled tile are integrally formed by injection molding a resin such as PP or PPS. At this time, as described above, by adding water or glass fiber and performing foaming molding, numerous infinitesimal bubbles can be formed inside the material.

Hereinafter, a first molding method of a prefabricated tile according to an embodiment of the present invention will be described in detail.

First, solid PP or PPS resin pellets are melted by thermal or mechanical friction and water and / or glass fibers are added to such raw materials.

When the moisture is added to the raw material, moisture may be vaporized and foamed in the mold at the time of injection of the mold, thereby forming a bubble layer inside the raw material. Further, when the glass fiber is added to the raw material, since the glass fiber and the resin have a cooling difference of 1: 200, a bubble layer can be formed naturally, and furthermore, the material has a harder strength due to the characteristics of the glass fiber .

After mixing the water and / or glass fiber with the molten raw material, it is mixed well in the cylinder so that it can be uniformly mixed, and heat is applied to change into a supercritical state in which liquid and gas can not be distinguished.

Then, the mixed raw material is injected into an injection machine and injected into a mold for forming a prefabricated tile. At this time, the resin material and water / glass fiber are supercritical fluid state, and a pressure difference is generated, so that water is foamed inside the PP or PPS, and a lot of ultrafine bubbles are uniformly formed in the water-containing space.

Thereafter, the resin is solidified in the mold for a predetermined period of time, and a large number of ultrafine bubbles are generated by the cooling difference between the glass fiber and the resin.

According to another embodiment of the present invention, it is also possible to form ultrafine bubbles by adding only the glass fibers and using the cooling difference between the resin and the glass fiber.

Another method of forming ultrafine bubbles is to add a foaming agent such as an alkane or a halogenated alkane to a resin material so that a bubbling layer can be formed by using a carbon dioxide gas or a nitrogen gas generated during the pyrolysis reaction of the foaming agent. However, carbon dioxide or nitrogen gas can cause environmental problems such as destruction of the ozone layer.

Therefore, there is an advantage that environment-friendly production / manufacture can be performed by using moisture / glass fiber as in the embodiment of the present invention.

On the other hand, when water and glass fibers are mixed into a raw material, ultrafine bubbles are densely and uniformly formed throughout the material by using a screw or the like in a cylinder so that additives can be densely and uniformly mixed in the raw material.

When the superfine bubbles are densely and uniformly formed in the prefabricated tile material, the elastic force due to the ultrafine bubbles can be formed inside the prefabricated tile, and the change in the external temperature is absorbed by the ultra-minute bubbles, It is possible to prevent contraction / expansion of the prefabricated tile due to the change.

Further, the compressive loading force of the prefabricated tile can be strengthened by the microbubbles and the glass fiber, and the prefabricated tile itself is lightened.

In order to exhibit such an effect, the ultrafine bubbles must be formed inside the prefabricated tile.

According to an embodiment of the present invention, the diameter of the ultrafine bubbles formed in the prefabricated tile is 100 袖 m to 1 袖 m, and the ultrafine bubbles in the volume of the entire tile are preferably generated by about 15% to 30%.

However, if the ultrafine bubbles exceed 50% of the total tile volume, the strength of the tile may be lowered, which may cause cracking / cracking of the tile.

The volume of the ultrafine bubbles contained in the tile can be controlled by controlling the moisture content.

The foregoing description is merely illustrative of the present invention, and various modifications may be made by those skilled in the art without departing from the spirit of the present invention. Accordingly, the embodiments disclosed in the specification of the present invention are not intended to limit the present invention. The scope of the present invention should be construed according to the following claims, and all the techniques within the scope of equivalents should be construed as being included in the scope of the present invention.

100, 200: Prefabricated tile 10: Base frame
11, 51: wavy pattern 12, 52: plaid pattern
13, 14: grooves 20, 21, 22: support legs
30: connection 31: flip
40, 42: engaging portion 41: hook
50: incision surface 60: shock absorbing ring
W: clearance 71: buffer member

Claims (12)

A rectangular base frame including a plurality of grid patterns; An X-shaped moiré pattern crossing the four vertices of the lattice pattern is formed, the moiré pattern being formed on an upper portion of the lattice pattern and exposed to the outside; A plurality of support legs protruding from a vertex of the grid pattern and an inner intersection of the wave pattern to a lower surface of the base frame; A connection part protruding from at least one lateral side of two adjacent side surfaces of the base frame and inserted into a side surface of the base frame opposite to the adjacent tile when connected to the adjacent tile; Wherein the connection portion is inserted into a side surface corresponding to two adjacent side surfaces of the base frame at a position corresponding to the connection portion; And a flip formed on the inside of the connection portion so as to protrude outwardly from a side surface of the base frame, the side surface being connected to the side surface of the base frame, / RTI >
The coupling portion may further include at least one locking protrusion for preventing the coupling portion from being detached after being inserted into the coupling portion,
The base frame is provided with at least one cut surface in which the prefabricated tile can be equally divided into N equal parts, and a coupling part in which the connection part can be inserted at a position corresponding to the connection part in the base frame adjacent to the cut surface In addition,
The incision surface is formed to have a predetermined width,
And a shock absorbing portion capable of absorbing a stress or an impact generated in the horizontal direction of the surface of the prefabricated tile, in the predetermined width of the cut surface,
Wherein the connecting portion is formed into a circular shape while enclosing the flip,
Wherein the support leg comprises a first support leg formed at an apex of the grid pattern and a second support leg formed at an intersection of curves within the grid pattern, A tile having a thickness and a height different from each other.
delete The method according to claim 1,
Wherein the base frame, the base frame surface layer, the support leg, the connection portion, the engagement portion, the engagement protrusion, and the flip are formed by injection molding using polypropylene (PP) or polyphenylene sulfide (PPS) Prefabricated tiles.
The method according to claim 1,
Wherein the wave pattern of the base frame surface layer is configured to cross at least two curves forming a wave pattern so that a surface friction coefficient is larger than an "X " pattern, and the curvature of the curve is not less than 5 degrees and not more than 30 degrees Wherein the tile is made of a metal.
The method according to claim 1,
Wherein an engraved groove or embossed protrusion is formed at an inner intersection of the moire pattern on the surface layer of the base frame or an apex of the grating pattern of the base frame.
delete delete delete The method according to claim 1,
Wherein the at least one support leg further comprises a buffer member of an elastic material capable of absorbing an impact generated in the vertical direction of the surface of the prefabricated tile.
10. The method of claim 9,
Wherein the cushioning member is removably attachable to the support leg and is greater than or equal to the length of the support leg when attached to the support leg.
delete delete

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