KR102627011B1 - Prefabricated rubber block system - Google Patents

Abstract

The present invention has an overall hexahedral shape including a lower layer installed on the base or ground layer and an upper layer installed on the lower layer, the lower layer is made of a material capable of injection molding, and a plurality of vertical protrusions are formed on the upper surface. is formed, at least one female fastener and a male fastener are formed on each side, a plurality of screw holes are formed penetrating from the lower surface to the upper surface, the upper layer is made of an elastic material, and the plurality of screw holes are formed on the lower surface. It relates to a prefabricated rubber block system having a first groove into which a vertical protrusion is inserted and fastened, and a second groove into which the plurality of screw holes are inserted and fastened.

Description

Prefabricated rubber block system}

The present invention relates to flooring materials installed in basketball courts, safety walkways, etc., and more specifically, to a prefabricated rubber block system constructed by assembling an upper rubber layer and a lower plastic layer.

Urethane flooring, which is used as a basketball court flooring, is difficult to install and maintain and is neglected by users due to heavy metal problems. Accordingly, earthen concrete or plastic flooring is used as a replacement for urethane flooring. However, such earthen concrete or plastic flooring materials have a problem in that users are exposed to injury due to friction with the surface when falling.

In addition, wood is mainly used for waterside decks and coastal decks among safety pedestrian paths, but these wood decks have short durability due to corrosion and require a lot of manpower and time to install.

Domestic registered patent No. 10-2244233 (registration date: 2021.04.20) Domestic registered patent No. 10-2241675 (registration date: 2021.04.13)

The purpose of the present invention is to provide a prefabricated rubber block system that ensures optimal exercise function with excellent slip resistance and shock absorption.

Another object of the present invention is to provide a prefabricated rubber block system that is free from corrosion due to moisture.

The prefabricated rubber block system according to an embodiment of the present invention for achieving the above problem has an overall hexahedral shape including a lower layer installed on the base or ground layer and an upper layer installed on the lower layer, and the lower layer is injection molded. It is made of a moldable material, a plurality of vertical protrusions are formed on the upper surface, at least one female fastening part and a male fastening part are formed on each side, and a plurality of screw holes are formed from the lower surface through the upper surface, The upper layer is made of an elastic material, and a first groove into which the plurality of vertical protrusions are inserted and fastened and a second groove into which the plurality of screw holes are inserted and fastened may be formed on the lower surface.

The elastic material may be one of polyurethane (PU), stylene butadiene rubber (SBR), or ethylene vinyl acetate (EVA).

Alternatively, the elastic material can be produced by mixing one of PU, SBR, and EVA with a rubber powder binder and molding it.

The length of one side of the upper layer may be 250 mm to 600 mm and the thickness may be 10 mm to 30 mm, and the length of one side of the lower layer may be 250 mm to 600 mm and the thickness may be 15 mm to 60 mm.

The lower surface of the upper layer has the shape of a concave lens that is thick near the edges and becomes thinner toward the center, and the upper surface of the lower layer has the shape of a convex lens that is thinner near the edges and becomes thicker toward the center. You can.

According to an embodiment of the present invention, the present invention has the advantage of simple installation and easy maintenance.

In addition, the present invention has the advantage of being able to apply a variety of colors and patterns, making it easy to apply a design that matches the surrounding scenery.

Figure 1 is a perspective view of a prefabricated rubber block system according to an embodiment of the present invention.
Figure 2 is a plan view showing the front and back of the upper layer in the prefabricated rubber block system according to an embodiment of the present invention.
Figure 3 is a side view showing the side of the upper layer according to an embodiment of the present invention.
Figure 4 is a perspective view of the lower layer in the prefabricated rubber block system according to an embodiment of the present invention.
Figure 5 is a cross-sectional view of an upper layer and a lower layer according to another embodiment of the present invention.
Figure 6 is a plan view showing the rear of the lower layer according to an embodiment of the present invention.
Figure 7 is a diagram showing the process of fastening the upper layer and the lower layer according to an embodiment of the present invention.

Hereinafter, embodiments disclosed in the present specification will be described in detail with reference to the attached drawings. However, identical or similar components will be assigned the same reference numbers regardless of reference numerals, and duplicate descriptions thereof will be omitted. Additionally, in describing the embodiments disclosed in this specification, if it is determined that detailed descriptions of related known technologies may obscure the gist of the embodiments disclosed in this specification, the detailed descriptions will be omitted.

Terms containing ordinal numbers, such as first, second, etc., may be used to describe various components, but the components are not limited by the terms. The above terms are used only for the purpose of distinguishing one component from another. Singular expressions include plural expressions unless the context clearly dictates otherwise.

In this application, each step described may be performed regardless of the listed order, except when it must be performed in the listed order due to a special causal relationship.

In this application, terms such as “comprise” or “have” are intended to designate the presence of features, numbers, steps, operations, components, parts, or combinations thereof described in the specification, but are not intended to indicate the presence of one or more other features. It should be understood that this does not exclude in advance the possibility of the existence or addition of elements, numbers, steps, operations, components, parts, or combinations thereof.

Hereinafter, the present invention will be described with reference to the attached drawings.

Figure 1 is a perspective view of a prefabricated rubber block system according to an embodiment of the present invention. Referring to Figure 1, the prefabricated rubber block system 100 according to an embodiment of the present invention has an overall hexahedral shape, and includes a lower layer 110 installed on the base 20 and an upper layer assembled and combined with the lower layer 110. Includes (120).

The base 20 is formed by compacting stone dust, which is a by-product generated when turning rocks into crushed stone. The base 20 is formed on the ground layer 10, which is a ground layer including the ground without concrete laid, and is composed of sand, soil, etc. Of course, the lower layer 110 may be installed on the ground layer 10 without the base 20.

The lower layer 110 has an overall hexahedral shape, and the length of one side of the upper and lower surfaces is 250 mm to 600 mm, and the thickness is 15 mm to 60 mm. The lower layer 110 may be made of a material that can be injection molded, such as polyethylene (PE), plastic, or recycled polyethylene (PE). One prefabricated rubber block system 100 has a male fastening part 112 and a female fastening part 113 on the side of the lower layer 110 to be connected to another prefabricated rubber block system 100. Accordingly, the male fastening part 112 formed in one rubber block system 100 is inserted into and fastened to the inner space of the female fastening part 113 formed in another rubber block system 100.

The upper layer 110 has a hexahedral shape, with one side having a length of 250 mm to 600 mm and a thickness of 10 mm to 30 mm. The upper layer is made of elastic material. The elastic material can be made of, for example, polyurethane (PU), stylene butadiene rubber (SBR), or ethylene vinyl acetate (EVA), or by mixing a binder of rubber powder with one of PU, SBR, or EVA and molding it. The upper layer 110 made of this material has high slip resistance, impact resistance, and abrasion resistance.

Figure 2 is a plan view showing the front and back of the upper layer in the prefabricated rubber block system according to an embodiment of the present invention. In FIG. 2, (a) is a view showing the front side (i.e., upper surface) of the upper layer 120, and (b) is a view showing the back side (i.e., lower surface) of the upper layer 120.

Referring to (a) of FIG. 2, the front surface of the upper layer 120 is entirely flat. And referring to (b) of FIG. 2, the back of the upper layer 120 is in an overall flat state, and first grooves 120a and second grooves 120b are formed for assembly and connection with the lower layer 110. there is. An assembly means formed on the lower layer 110 is inserted into the first and second grooves 120a and 120b. The shape of the first and second grooves 120a and 120b is determined depending on the shape of the assembly means to be fastened.

Figure 3 is a side view showing the side of the upper layer according to an embodiment of the present invention. Referring to FIG. 3, the front edge of the upper layer 120 is chamfered at an angle of about 30 to 60 degrees.

Figure 4 is a perspective view of the lower layer in the prefabricated rubber block system according to an embodiment of the present invention, (a) is a view shown based on one side, and (b) is shown based on one side connected to one side. It is a drawing.

Referring to FIG. 4, the lower layer 110 includes a lower body 111, a male fastening portion 112, a female fastening portion 113, and a vertical protrusion 114.

The lower body 111 has a hexahedral shape corresponding to the shape of the upper layer, and has a hollow lattice structure to enable construction on the ground layer 10 or the base 20, that is, on soil, sand, or stone dust. The hollow lattice structure may be a polygonal structure such as square or hexagonal ribs, or circular ribs, and is formed by being included in a certain pattern in which lines and surfaces are repeatedly connected.

At least one male fastening part 112 and one female fastening part 113 is formed on each side of the lower body 111, and the greater the number formed, the higher the fastening strength. The male fastening part 112 and the female fastening part 115 have a male fastening part 112, a female fastening part 113, a male fastening part 112, and a female fastening part 113 on one side as shown in (a) of FIG. 4. When formed in order, the male fastening portion 112 and the female fastening portion 113 are formed in the same order on the opposing sides.

And, as shown in (b) of Figure 4, the arm fastening part 113 is connected to one side, that is, the other vertical side is connected to each fastening part 112, 113 formed on one side of Figure 4 (a). ), the male fastening portion 112, the female fastening portion 113, and the male fastening portion 112 are formed in this order.

The vertical protrusions 114 are formed to protrude vertically from the inside of each corner on the upper surface of the lower body 111, and are assembled and fastened to the first groove 120a of the upper layer 120. The protruding height of the vertical protrusion 114 is set to be smaller than the thickness of the upper layer 120 so that it does not penetrate the upper layer 120. The number of vertical protrusions 114 formed corresponding to one corner may be one or more. Therefore, when there is only one vertical protrusion 114 formed corresponding to one corner, four vertical protrusions 114 will be formed on the upper surface of the upper layer 120.

Figure 5 is a cross-sectional view of an upper layer and a lower layer according to another embodiment of the present invention. Figure 5 (a) is a view of the upper layer 120 viewed from one side or a cross-sectional view of the upper layer 120 cut along one side. Figure 5(b) is a cross-sectional view cut along one side of the lower layer 110, and vertical protrusions 114 are not shown.

Figure 5(a) is the same even when viewed from any of the four sides of the upper layer 120, and Figure 5(b) is the same even when cut along one of the four sides of the lower layer 120.

Referring to (a) of FIG. 5, the upper surface of the upper layer 120 is flat, and the lower surface is thick near the edges and becomes thinner toward the center, that is, in the shape of a concave lens. Referring to (b) of FIG. 5, the lower surface of the lower layer 110 is flat, and the upper surface is thin near the edges and thicker toward the center, that is, in the shape of a convex lens. By forming the lower layer 120 in the shape of a convex lens, the center off phenomenon can be compensated for. The center-off phenomenon is a phenomenon in which the center is off over time due to the habit of a person stepping on the center of an object, in addition to the phenomenon of the upper layer being rolled up due to the difference in tensile strength between the upper and lower layers.

At this time, it is desirable to ensure that the curvature of the lower surface of the upper layer 120 and the upper surface of the lower layer 110 are the same so that the upper layer 12 and the lower layer 110 are in close contact.

Figure 6 is a plan view showing the rear of the lower layer according to an embodiment of the present invention. Referring to FIG. 6, a pattern in which lines and surfaces are repeatedly connected is formed on the back of the lower layer 110 to be stably fixed to the base 10 or the ground layer 10, and the upper layer 120 is formed at regular intervals in the pattern. A screw hole 115 that can be screwed into the second groove 120b is formed.

Figure 7 is a diagram showing the process of fastening the upper layer and the lower layer according to an embodiment of the present invention. Referring to FIG. 7, at least one vertical protrusion 114 is directly inserted into the first groove 120a of the upper layer 120 and assembled and fastened, and the screw is inserted into the screw hole 115 on the lower surface of the lower layer 110. After being drawn in and penetrating the lower layer 110, it is drawn into the second groove 120b formed in the upper layer 110 and assembled and fastened. Accordingly, the lower layer 110 and the upper layer 120 are very firmly fixed.

The technical features disclosed in each embodiment of the present invention are not limited to the corresponding embodiment, and unless they are incompatible with each other, the technical features disclosed in each embodiment may be combined and applied to other embodiments.

Therefore, in each embodiment, each technical feature is mainly explained, but unless the technical features are incompatible with each other, they can be applied in combination with each other.

The present invention is not limited to the above-described embodiments and the accompanying drawings, and various modifications and variations will be possible from the perspective of those skilled in the art to which the present invention pertains. Therefore, the scope of the present invention should be determined not only by the claims of this specification but also by equivalents to these claims.

100: prefabricated rubber block system 110: lower layer
120: upper layer 10: ground layer
20: base 111: lower body
112: male fastening part 113: female fastening part
114: Vertical projection 115: Screw hole

Claims (5)

It has the overall shape of a hexahedron, including a lower layer installed on the base or ground layer and an upper layer installed on the lower layer,
The lower layer is made of a material capable of injection molding, is formed to protrude vertically from the inside of each corner of the upper surface, has a protruding height less than the thickness of the upper layer, and has a plurality of vertical protrusions formed in the same number corresponding to each corner, On each side, a female fastening part is formed that is fastened to the male fastening part of the lower layer of another prefabricated rubber block, a male fastening part is formed that is fastened to the female fastening part of the lower layer of another prefabricated rubber block, and a plurality of fastening parts penetrate from the lower surface to the upper surface. A screw hole is formed,
The upper layer is made of an elastic material, and a plurality of first grooves into which the plurality of vertical protrusions are inserted and fastened and a plurality of second grooves into which the plurality of screw holes are inserted and fastened are formed on the lower surface,
The lower layer has a hollow lattice structure to enable construction on the ground layer or base, that is, soil, sand, or stone dust,
The material capable of injection molding is one of polyethylene (PE), plastic, and recycled polyethylene (PE),
The length of one side of the upper layer is 250 mm to 600 mm and the thickness is 10 mm to 30 mm, and the length of one side of the lower layer is 250 mm to 600 mm and the thickness is 15 mm to 60 mm,
The elastic material is one of PU (polyurethane), SBR (stylene butadiene rubber), or EVA (Ethylene Vinyl Acetate), or a prefabricated rubber block system produced by mixing a rubber powder binder with one of PU, SBR, or EVA. delete delete delete According to claim 1,
The lower surface of the upper layer has the shape of a concave lens that is thick near the edges and becomes thinner toward the center,
The upper surface of the lower layer is a prefabricated rubber block system in the shape of a convex lens that is thin near the edges and thickens toward the center.

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