KR101980084B1 - Assembly type lawn grass protection mat - Google Patents

Abstract

The present invention relates to an assembly type lawn protection mat manufactured to have different elasticity and divided into an inner unit and an outer unit. The assembly type lawn protection mat includes: an inner mat formed by injection molding and installed at the center, wherein the inner mat has a lawn passing space on a grid array and has a frame by a grid array structure; and an outer mat formed by the injection molding and assembled in a structure enclosing the outer surface of the inner mat by being installed on the outer side of the inner mat, wherein the outer mat has the frame by the grid array structure and has the lawn passing space on the grid array. The inner mat and the outer mat has the corresponding number of assembly connection units corresponding to each other to be assembled and connected to the each other at corresponding positions. According to the present invention, the assembly type lawn protection mat is divided into the inner mat and the outer mat and can be connected in an assembly type. The assembly type lawn protection mat obtains durability and performs an impact absorption and buffer function. Also, the assembly type lawn protection mat includes an anti-slip function and enables rapid elastic restoration of a stepped part when an external force applied onto the lawn protection mat is released. Also, the assembly type lawn protection mat can solve a phenomenon in which the rest part except for the stepped part is lifted up by the external force.

Description

ASSEMBLY TYPE LAWN GRASS PROTECTION MAT, which is manufactured to have different elasticity,

The present invention relates to a prefabricated grass protection mat, and more particularly, to a prefabricated lawn mats which are separated from each other by an inner mat and an outer mat so that they can be assembled and used together, The present invention relates to a prefabricated lawn protection mat manufactured to have different elasticity from inside and outside so as to improve a phenomenon in which a portion is lifted up.

Generally, grasses grown in a grass growing area such as a golf course, a park, a lawn square, a grass field, a school, a lawn recording space, a soft ground, a walking path, etc. are susceptible to damage due to continuous stepping by a large number of users and vehicles, The cost of renovation is considerable.

Recently, a grass protection mat is laid out to protect the lawn from being damaged due to frequent passage of a large number of users and vehicles.

As described above, the conventional grass protection mat, which is installed in the grass growing area and used for protecting the lawn, is provided with a body part in which most of the lawn passage space is formed and a lower part provided under the body part to support and buffer the load applied to the body part. And a cushioning member having an elastic force.

However, the conventional lawn mats have problems in that they are not durably deformed as they are twisted or deformed as well as surface cracks and cracks, and sometimes are easily broken and cut.

In addition, the conventional lawnmower protection mat is continuously stepped on due to the movement of a large number of users and vehicles on the lawn planted ground. However, due to the disadvantages such as poor shock absorption and elastic recovery, There is a problem that it is hardly deformed to affect the growth of the grass and the rest of the parts other than the stepped part are lifted up by the external force frequently,

On the other hand, in the prior art documents related to the lawn protection mat in the past, a number of grass protection mats are proposed and disclosed in Korean Patent No. 10-1793875, No. 10-1884877, No. 10-1769737, and the like.

Korean Patent Registration No. 10-1793875 Korean Patent Registration No. 10-1884877 Korean Patent Publication No. 10-1769737

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems of the prior art, and it is an object of the present invention to provide a prefabricated lawnmat protection mat, which is formed by an inner mat and an outer mat and can be assembled and used, The purpose is to provide.

It is an object of the present invention to provide a prefabricated lawn mats which can provide shock absorbing and cushioning functions while ensuring durability and can be provided with a slip prevention function.

The present invention improves the elastic recovery of the stepped portion when the applied external force is released and improves the problem that the soft ground is deformed by compaction to affect the growth of the grass, The present invention provides a prefabricated grass protection mat that can improve the phenomenon that the remaining portion is lifted up.

In order to accomplish the above object, the present invention provides a prefabricated grass protection mat according to the present invention, the prefabricated grass protection mat comprising: an inner mat having a frame frame formed by a grid arrangement structure and formed with a grass passage space on a grid array; And an outer mat which is formed by injection molding and which is disposed outside the inner mat and is assembled and coupled to surround the outer surface of the inner mat, the outer mat having a frame frame by a grid arrangement structure, And the inner mats and the outer mats are provided at mutually corresponding positions and corresponding numbers in association with each other so as to be assembled with each other.

Here, the outer mat may be a mat having a hollow body formed at the center thereof for inserting and assembling the inner mat.

Here, the outer mat may be formed of first to fourth outer mats which are formed to cover the entire outer surface of the outer mat, and which are formed of mutually separated bodies and can be assembled to each other .

Here, the inner mat and the outer mat may be formed by injection molding so as to have different strength and elasticity.

Here, the outer mat may have a structure in which an elastic wire is embedded in the outermost frame of the frame, the elastic wire may be inserted into the outer frame by forming a hollow in the outermost frame of the frame, or an insert injection method It is possible to embed an elastic wire material.

Here, the outer mat may have a structure in which an elastic wire is embedded in the outermost frame of the frame, the elastic wire is inserted into the hollow of the frame at the outermost periphery thereof, The elastic wire material may be a coil-shaped body and may be configured to be stretchable.

Here, the inner mat and the outer mat each include a lowering protrusion having a lower opening structure on a lower lattice point of the frame, at regular intervals, and a buffer block inserted and fixedly inserted into the lower opening protrusion Can be configured.

Here, in the buffer block, the elastic spring can be inserted and arranged so as to exert an elastic force in the vertical direction.

Here, each of the inner mat and outer mat has a non-slip layer formed on its upper surface; The anti-slip layer may be formed of at least one selected from the group consisting of acrylonitrile butadiene rubber (NBR), ethylene propylene rubber (EPDM), styrene butadiene rubber (SBR), nitrile rubber, butyl rubber, butadiene rubber, Or a mixture containing a fluorinated ion-light epoxy composite.

According to the present invention, it is possible to provide a prefabricated lawn protection mat which is divided into an inner mat and an outer mat and can be used in a combined manner. The lawn mats are provided with a grass having a slip prevention function A protective mat can be provided.

The present invention is capable of restoring the original arrangement state due to the rapid elastic restoration of the stepped portion when releasing the external force applied on the lawn protection mat and hardening the soft ground by the compaction, It is possible to improve the problem and to improve the phenomenon that the remaining portion other than the portion pressed by the external force is lifted up.

1 to 3 are block diagrams illustrating a prefabricated lawn mats according to an embodiment of the present invention.
4 and 5 are block diagrams illustrating a prefabricated lawn mats according to another embodiment of the present invention.
6 and 7 are block diagrams for illustrating a prefabricated grass protection mat according to another embodiment of the present invention.
FIG. 8 is an exemplary view showing the construction of the free-standing impact portion in the assembled grass protection mat of the present invention.
Fig. 9 is an exemplary view showing a configuration including an anti-slip layer in the assembled grass protection mat of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. The present invention will become more apparent from the following detailed description when taken in conjunction with the accompanying drawings.

1 to 9, a description will be given of a prefabricated grass protection mat 1, which is divided into an inside and an outside and has different elasticity according to an embodiment of the present invention.

Hereinafter, the term of the lattice arrangement refers to a divided structure formed by intersecting vertically and horizontally, and will be interpreted as including not only a square lattice but also a hexagonal or a circular lattice shape, and a repetitive pattern arrangement It can be defined by the term indicating.

1 to 3, the prefabricated grass protection mat 1, which is manufactured to have different elasticity from inside and outside according to an embodiment of the present invention, includes an inner mat 100 and an outer mat 200 , And the completed mat (1) can be completed by assembling the inner mat (100) and the outer mat (200) by assembling.

The inner mat (100) is a mat-shaped body formed by injection molding and is disposed at the center of the lawn protection mat (1). The inner mat (100) has a frame (110) 120 are formed.

The inner mat (100) is provided with an assembling part (130) for assembling with the outer mat (200).

The outer mat 200 is a mat-shaped body formed by injection molding. The outer mat 200 is disposed on the outer side of the inner mat 100 and is integrally assembled with the inner mat 100 so as to surround the entire outer surface of the inner mat 100. A turf passage space 220 having a frame frame 210 is formed on the grid array.

The outer mat 200 may be a mat-shaped body having a frame-like structure in which a hollow portion 240 is formed at the center for insertion and assembly of the inner mat 100.

The outer mat (200) is provided with an assembling part (230) for assembling with the inner mat (100) around the inner surface.

The assembly mating parts 130 and 230 of the inner mat 100 and the outer mattress 200 are formed in a female-like structure corresponding to each other and are provided at corresponding positions and corresponding numbers.

In this case, the assembly part 130 of the inner mat 100 may be formed as a bending fitting assembly for fitting into the frame 210 of the outer mat 200, The assembly fitting portion 230 may be formed as an assembly groove for supporting the bending fitting assembly projection and maintaining the same plane.

In some cases, the inner mat 100 and the outer mat 200 may be formed in the shape of a fitting protrusion and a fitting hole with respect to the assembly fitting portions 130 and 230, and may be configured in various forms .

The outer mat (200) can be connected to the grass protection mat (1) by projecting a ring-shaped connection part on two outer sides adjacent to the frame frame (210) An annular fixing groove for inserting and fixing the other grass protecting mat side connecting portion may be formed.

As shown in FIGS. 6 and 7, the outer mat 200 may be formed in a different shape. The outer mat 200 covers an entire area of the outer surface of the inner mat 100, 200b, 200c, and 200d, each of which is formed into a piece-like shape and can be assembled with each other.

As shown in the figure, the first to fourth outer mats may be formed of a bending type mat body bent in a memory (a) shape on the same plane, and the frame body 210 having a lattice arrangement structure, And a grass passing space 220 and an assembly coupling part 230 formed on the array.

The assembly mating portions 230 of the first to fourth outer mats have an area for assembling with the inner mat 100 and an area for assembling the outer mats adjacent to each other according to a mutually separable structure And the bending type fitting assembly projection and the assembly groove may be used in combination.

As described above, the inner mat 100 and the outer mat 200, which are assembled by the separated structure, can be formed by injection molding so as to have different strength and elasticity.

For example, the inner mat 100 may have high strength and high elasticity, and the outer mat may have low strength and low elasticity.

The inner mat (100) is provided with high strength and low elasticity, and the outer mat may have low strength and high elasticity.

The inner mat 100 may have a low strength and a high elasticity, and the outer mat may have a high strength and a low elasticity.

Here, the inner mat 100 and the outer mat 200 are each composed of a mixed composition comprising a polypropylene resin, an alpha-olefin copolymer modified with maleic anhydride, and a styrene block copolymer modified with maleic anhydride can do.

Here, the inner mat 100 and the outer mat 200 can be configured to have different strengths and elasticities by adjusting the composition ratios of the three components, respectively. Through this, quick elastic recovery of the stepped portion due to external force And it is possible to improve the phenomenon that the remaining parts other than the stepped part by the external force by a large number of users or vehicles are easily lifted up.

The inner mat (100) and the outer mat (200) are each mixed with 5 to 30 parts by weight of an alpha-olefin-based copolymer modified with maleic anhydride, based on 100 parts by weight of polypropylene resin, Injection molding can be carried out at different composition ratios within the range of mixing 1 to 25 parts by weight of the copolymer.

The polypropylene resin may be any one selected from the group consisting of a polypropylene homopolymer, a polypropylene random copolymer, a polypropylene block copolymer, and a compound of polypropylene and polyethylene.

Here, the polypropylene homopolymer can utilize physical properties excellent in rigidity and chemical resistance, and the polypropylene random copolymer can utilize physical properties having flexibility and durability. The polypropylene block copolymer has impact strength and rigidity It is possible to utilize the excellent physical properties that can withstand external pressure (load).

The alpha-olefin-based copolymer modified with maleic anhydride can utilize the physical properties of impact resistance and flexibility.

The α-olefin-based copolymer modified with maleic anhydride may have a molecular weight of 48,000 to 100,000, a density of 0.9 to 0.925 g / cm 3, a melt index of 10 to 25 g / 10 min, and a maleic anhydride value of 1 to 10 It is preferable to carry out the modification by the grafting reaction by adding weight%.

Here, the alpha olefin-based copolymer may be any one selected from the group consisting of an ethylene-octene copolymer, an ethylene butene copolymer, an ethylene vinyl alcohol copolymer, and an ethylene-vinyl acetate copolymer.

The styrene block copolymer modified with maleic anhydride can utilize physical properties such as friction characteristics, shock absorbability, dimensional stability, UV and ozone resistance, and high temperature and low temperature durability.

Here, the styrene block copolymer modified with maleic anhydride preferably has a molecular weight of 48,000 to 100,000, a density of 0.9 to 0.925 g / cm 3 and a melt index of 10 to 25 g / 10 min to 1 to 5 weight of maleic anhydride % Is added to carry out the modification by the grafting reaction.

Here, the styrenic block copolymer may be at least one selected from the group consisting of styrene-butadiene-styrene (SBS), styrene-ethylene-butadiene-styrene (SEBS), styrene-ethylene-propylene-styrene (SEPS), styrene- SIS). ≪ / RTI >

Also, 1 to 10 parts by weight of a thermal oxidation inhibitor based on 100 parts by weight of the polypropylene resin may be added to the resin composition to prevent thermal oxidation of the resin due to high temperature during injection molding.

Examples of the thermal oxidation inhibitor include tetrakis [methylene-3 (3,5-di-tert-butyl-4-hydroxyphenyl) propionate] methane, octadecyl-3- (3,5- Butyl-4-hydroxyphenyl) propionate, 2,2'-methylenebis (4-methyl-6-thi-butylphenol), 2,6-di- Any one or more groups may be used.

4, the elasticity of the outer mat 200 is increased to the outermost periphery of the frame 210 of the outer mat 200, thereby enabling rapid elastic recovery after application of an external force. In addition, It is possible to have a configuration in which the elastic wire member 300 is embedded so that the phenomenon of being easily lifted up can be eliminated.

That is, a hollow portion 201 is formed at the outermost portion of the frame 210 of the outer mat 200, or the elastic strands 300 are inserted into the outer mat 200, or the outer mat 200 is inserted through an insert injection method The elastic wire 300 may be formed in a state of being inserted and embedded in the inner side.

At this time, an opening may be formed on the side surface of the hollow.

As shown in FIG. 5, the elastic wire 300 is provided with a coil-shaped body so that the elastic wire 300 can be formed into a shape capable of elastic expansion as well as elastic characteristics. .

8, the inner mat 100 and the outer mat 200 are provided with lower opening protrusions 150 (see FIG. 8) having a lower opening structure on the lower lattice points of the frame molds 110 and 210, respectively, And a cushion block 160 that is fixedly coupled to the lower openings 150 and 250 by inserting the lower openings 150 and 250 at regular intervals.

The elastic blocks 161 and 261 may be inserted and disposed in the buffer blocks 160 and 260 so as to exert an elastic force in the vertical direction and the buffer blocks 160 and 260 may be formed in the form of a corrugated circular tube So as to have elasticity.

The cushion blocks 160 and 260 are fixed to the lower openings 150 and 250. The cushion block 160 may have a height corresponding to the curved surface. It is possible to provide the advantage of being more stably placed on the ground to assure the protection of lawn.

9, each of the inner mat 100 and the outer mat 200 may have a non-slip layer 400 formed on its upper surface.

The anti-slip layer 400 may be formed of at least one material selected from the group consisting of acrylonitrile butadiene rubber (NBR), ethylene propylene rubber (EPDM), styrene butadiene rubber (SBR), nitrile rubber, butyl rubber, butadiene rubber, A fluorinated germanium epoxy composite or a fluorinated ylite epoxy composite. By forming the mixture in a form of coating or immersion treatment, flame retardancy can be obtained in addition to the slip prevention function.

The anti-slip layer 400 may include 10 to 25 parts by weight of a fluorinated germanium epoxy composite or a fluorinated ylite epoxy composite per 100 parts by weight of the rubber material.

In this case, the fluorinated germanium epoxy composite is constituted by mixing fluorinated modified germanium modified by fluorination reaction with epoxy for weatherability and adhesiveness, and the fluorinated ylite epoxy composite is prepared by using a fluorinated modified fluorite modified fluorite Is mixed with an epoxy for weatherability and adhesion.

Here, the anti-slip layer 400 may be added to have a stain resistance and a self-cleaning function by adding a polyalkyl silicate having a structure in which an alkyl group, a methyl group or an ethyl group is substituted for the main chain and the side chain, 5 to 20 parts by weight may be added.

Here, the anti-slip layer 400 may be added with an ultraviolet screening function by adding an ultraviolet screening agent. It is preferable to add 3 to 10 parts by weight to 100 parts by weight of the rubber material, and titanium dioxide, zinc oxide , Homosalate, avobenzene, octylmethoxycinnamate, ethylhexylmethoxycinnamate, oxynosate, octocryl, and oxybenzone may be used.

Accordingly, in the present invention, it is possible to provide a prefabricated lawn protection mat which is divided into an inner mat and an outer mat and can be used in a combined manner. In addition to providing durability, it can exhibit shock absorbing and damping functions, And it is possible to provide a merit that an external force applied to the grass protection mat can be restored to a fast elastic restoration of the stepped portion when released and a remaining portion other than the portion pressed by the external force can be lifted up.

While the present invention has been described with reference to exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims. May be made, which will be within the technical scope of the present invention.

1: Prefabricated grass protection mat 100: Interior mat
110: frame frame 120: lawn passage space
130: Assembly and assembly part 200: External mat
210: frame frame 220: lawn passage space
230: assembly coupling portion 300: elastic wire member

Claims (9)

Grass protection to prevent damage caused by frequent passage of a large number of users or vehicles to lawns growing in grass growing areas including golf courses, parks, lawn openings, lawn courts, schools, grass greening areas, soft grounds, In the mat,
An inner mat which is formed by injection molding and which is disposed at a central portion and has a frame frame formed by a grid arrangement structure but has a turf passage space formed on a grid array;
An outer mat having a frame structure formed by a grid arrangement structure and having a grass passage space formed on a grid array, the outer mat being formed by injection molding and disposed at an outer side of the inner mat and surrounding the outer surface of the inner mat; / RTI >
Wherein the inner mat and the outer mat are provided at mutually corresponding positions and in corresponding numbers to each other so as to be mutually assembled,
Wherein the inner mat and the outer mat are formed by injection molding so as to have different strengths and elasticities, and each of the inner mat and the outer mat is made of a polypropylene resin, an alpha-olefin copolymer modified with maleic anhydride, And a styrenic block copolymer modified with a maleic anhydride-modified maleic anhydride copolymer and an alpha-olefin-based copolymer modified with a maleic anhydride modified polypropylene resin, The grass protection mat according to any one of claims 1 to 3, wherein the first and second elastic members are provided with elasticity different from each other. The method according to claim 1,
Wherein the outer mat
Wherein the inner mat is made of a mat with a hollow body formed with a hollow portion at the center for insertion and assembly of the inner mat. The method according to claim 1,
Wherein the outer mat
And a first to a fourth outer mat which are formed to cover a whole area of the outer surface of the inner mat and are formed as mutually separated bodies and can be assembled to each other. Prefabricated grass protection mat manufactured to have different elasticity. delete The method according to claim 1,
The outer mat may have a structure in which an elastic wire is embedded in the outermost frame of the frame. The elastic wire may be formed by forming a hollow in the outermost frame of the frame. Alternatively, the elastic mat may be inserted into the outer mat during injection molding. Wherein the inner surface of the protruding portion of the protruding portion of the protruding portion of the protruding portion of the inner surface of the protruding portion of the inner surface of the protruding portion is protruded from the protruding portion. The method according to claim 1,
Wherein the outer mat has a structure in which an elastic wire is embedded in the outermost frame of the frame, wherein a hollow is formed in the outermost frame of the outer mat to sandwich the elastic wire;
The prefabricated grass protection mat according to any one of claims 1 to 3, wherein the elastic wire material is a coil-shaped body and is configured to be stretchable. The method according to claim 1,
The inner mat and the outer mat each have a lower opening portion having a lower opening structure on a lower lattice point of the frame frame at regular intervals and inserted into the lower opening portion to be fixedly coupled. Prefabricated grass protection mat manufactured to have different elasticity, divided into inside and outside. 8. The method of claim 7,
Wherein the elastic block is inserted and disposed in the buffer block so as to exert an elastic force in the up and down direction. The method according to claim 1,
Wherein each of the inner mat and outer mat forms a non-slip layer on an upper surface thereof;
The anti-
A fluorinated germanium epoxy composite or a fluorinated ylite epoxy composite is added to at least one selected from acrylonitrile butadiene rubber (NBR), ethylene propylene rubber (EPDM), styrene butadiene rubber (SBR), nitrile rubber, butyl rubber, butadiene rubber, And the second and the third layers are formed by applying or immersing the mixture to the inside and the outside, respectively.

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