KR101967608B1 - Mat for protecting lawn grass - Google Patents

Abstract

The present invention relates to a mat for protecting lawn, applied to an elastic wire rod. The mat for protecting lawn is installed by injection molding and is used to protect lawn by being installed on the ground on which the lawn is planted. The mat for protecting lawn includes: a base frame of a square structure, installed at an edge; and a lawn vegetation space unit integrally installed and connected to the inside of the base frame and having a grid structure of a predetermined shape, wherein the lawn vegetation space unit has a lawn passing space inside. A first elastic wire rod is installed in the base frame, and a hollow is formed. So, the first elastic wire rod is inserted into the hollow of the base frame or is embedded by an insert injection method when the mat for protecting lawn is injected and molded. The elastic wire rod includes a coil-shaped body and can be elastic and shrunk or expanded. According to the present invention, a stepped part of the mat for protecting lawn can be rapidly and elastically recovered by the external force applied by composition in which the elastic wire rod is applied onto the mat for protecting lawn. Moreover, the mat for protecting lawn can solve a phenomenon that the rest part such as the edge except for the stepped part by the external force is lifted up. Moreover, the mat for protecting lawn can obtain durability and improve impact absorbing and shock buffering functions by an elastic action by application of the elastic wire rod. In addition, the mat for protecting lawn can prevent sliding by using an antiskid layer and a lawn protection protruding unit and can be used on a curved ground surface.

Description

{MAT FOR PROTECTING LAWN GRASS}

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a grass protection mat, and more particularly, to a grass protection mat, and more particularly, The present invention relates to a lawn protection mat capable of exhibiting a protection function.

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

Disclosure of the Invention The present invention has been made in view of the above-mentioned problems of the prior art, and it is an object of the present invention to provide a method and a device for manufacturing the elastic wire, And it is an object of the present invention to provide a grass protection mat that can improve the problem of affecting the growth of grass and improve the phenomenon of lifting the remaining portion other than the stepped portion by the external force.

It is an object of the present invention to provide a grass protection mat which is capable of exhibiting shock absorbing and shock absorbing functions while ensuring durability and having a slip prevention function.

It is an object of the present invention to provide a grass protection mat which can be used even on a curved surface.

According to another aspect of the present invention, there is provided a grass protection mat for use in protecting a lawn, the grass protection mat being disposed on a ground surface of a lawn, the lawn protection mat being formed by injection molding, frame; And a grass vegetation space having a lattice arrangement structure of a predetermined shape connected to the inside of the base frame frame and having a turf passing space therein, Wherein the first elastic wire is inserted into the hollow of the first elastic wire, or the first elastic wire is embedded in the grass protection mat by an insert injection method during injection molding.

Here, the first elastic wire may be provided as a coil-shaped body to have a configuration capable of elasticity and expansion and contraction.

In this case, on the grass vegetation space, the lower collision parts protruding downward are disposed at regular intervals, and an elastic spring is embedded in the collision part in an insert injection manner so as to be elastically supported.

Here, the grass vegetation space may include a lattice arrangement frame so that the unit lattices forming a quadrangle are continuously and repeatedly arranged, and connected to the inside of the base frame frame; The lattice arrangement frame is formed of a lattice arrangement frame having a dual structure spaced apart from each other, and a second elastic line member is fixedly disposed between the lattice arrangement frames of the dual structure. The lattice arrangement frame is provided with a coil- It is possible to have a configuration capable of expansion and contraction.

Here, the second elastic wire material may be coated with any one selected from a synthetic resin material, a rubber material, and a fabric material so as to protect the grass while allowing expansion and contraction.

Here, each of the base frame frame and the grass vegetation space has a non-slip layer formed on the upper surface thereof; 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 an epoxy composite.

Here, the grass protection protrusion protruding upwardly is formed on the upper surface of the grid arrangement frame of the grass vegetation space to protect the grass from slipping.

According to the present invention, an external force applied through a structure of an elastic wire material on a lawn protection mat can perform quick elastic recovery of a stepped portion during release, and a soft ground can be firmly deformed by compaction, It is possible to improve the problem that the remaining part such as the edge other than the part pressed by the external force is lifted up.

The present invention has a function of securing durability by grafting of an elastic wire material and exhibiting a shock absorbing and buffering function and capable of preventing slippage through a slip prevention layer and a grass protection protruding portion, A grass protection mat may be provided.

1 is a schematic perspective view illustrating a grass protection mat according to an embodiment of the present invention.
Figs. 2 to 4 are schematic illustrations for explaining a buffer block in the present invention. Fig.
5 is a schematic perspective view illustrating a grass protection mat according to another embodiment 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.

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.

As shown in FIGS. 1 to 5, the grass protecting mat 100 to which the resilient wire according to the exemplary embodiment of the present invention is applied includes a base frame 110 having a square structure, And a grass vegetation space 120 having a lattice arrangement structure of a predetermined shape and having a turf passage space 121 therein.

The grass protection mat 100 having the base frame frame 110 and the grass vegetation space 120 as an integral part is provided by injection molding and is used to protect the lawn by being laid on the planted ground.

The first elastic wire 130 may be embedded in the base frame 110 so that the first elastic wire 130 is inserted into the hollow 130. Alternatively, The first elastic wire 130 may be embedded in the inserted state in the insert injection method.

At this time, the first elastic wire member 130 is a metal material such as a wire, and not only durability but also enables quick restoration to an originally placed state due to elasticity when an external force such as stepping due to pressing and pressing is released .

Particularly, it is preferable that the first elastic wire member 130 is provided with a coil-shaped body such as a spring or the like, and it has a structure capable of extending and contracting, It is possible to flexibly cope with the application of an external force such as a stepping or the like while performing a shock absorbing function and a shock absorbing function as well as improving the phenomenon that the remaining portion other than the stepped portion is easily lifted and influenced.

The connecting protrusions may be formed on the two outer side surfaces of the base frame 110 so that the grass protecting mat 100 can be connected to each other. An annular fixing groove for inserting and fixing the mat-side connecting portion can be formed.

In addition, the grass vegetation space part 120 is connected to the inside of the base frame frame 110 by having a lattice arrangement frame 122 so that rectangular unit lattices are continuously and repeatedly arranged.

At this time, the grid array frame 122 may be formed as a double-structure grid array frame which is adjacent to and spaced apart from the grid array frame 122, and a second elastic wire material 140 is interposed between the double- It is possible to provide a coil-shaped body so as to have a configuration capable of expanding and contracting in addition to an elastic function.

Here, the second elastic wire member 140 may be coated with any one selected from a synthetic resin, a rubber material, and a fabric material so as to protect the grass while allowing expansion and contraction.

The buffer block 150 is provided on the undersurface of the grass vegetation space 120, that is, the lower surface of the grid arrangement frame 122, at a predetermined interval so as to be in contact with the ground, It can be configured to exhibit shock absorbing and shock absorbing functions.

At this time, the buffer block 150 is provided at the lower surface of the grass vegetation space 120, that is, on the lower surface of the lattice arrangement frame 122, with the lower opening protrusions 160 having the lower opening structure, And may be configured to be inserted into and fixedly coupled to the protruding portion 160. In such a structure, the buffer block 150 can be used interchangeably.

Accordingly, it is possible to provide a structure having a plurality of bodies different in height with respect to the cushion block 150, and in the case where there is a great difference in curvature on the ground where the grass protection mat 100 is seated and placed, The cushioning block 150 may be fixedly coupled with the cushioning block 150.

In the buffer block 150, the elastic spring 151 can be inserted and arranged so as to exert an elastic force in the up and down direction, thereby further improving shock absorbing and buffering functions.

The buffer block 150 may be formed in the form of a corrugated circular tube so as to have elasticity.

Here, the elastic spring 151 may be inserted into the free end collision portion 150 by an insert injection method.

Here, the buffer block 150 may be configured to include a bottom fixing portion of a pin-type body extending downward from the lower surface of the buffer block 150 and being inserted and fixed to the paper surface.

Meanwhile, in the present invention, the grass protection mat (100) is injection-molded into a mixed composition comprising a polypropylene resin, an alpha-olefin-based copolymer modified with maleic anhydride, and a styrenic block copolymer modified with maleic anhydride, A structure including the frame 110, the grass vegetation space 120, and the buffer block 150 can be provided.

The first elastic wire member 130 and the second elastic wire member 140 may be fitted and fixed on the grass vegetation space 120 through an individual operation after the injection molding and may be inserted and injected through an insert injection system, And can be fixedly disposed on the frame 110 and the grid arrangement frame 122.

The lawn protection mat (100) is prepared by mixing 5 to 30 parts by weight of an alpha-olefin-based copolymer modified with maleic anhydride on the basis of 100 parts by weight of a polypropylene resin, adding 1 to 25 weight of a styrene block copolymer modified with maleic anhydride And < / RTI >

Here, 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 >

At this time, the grass protection mat 100 can 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 in the mixed composition, 20 to 40 parts by weight based on 100 parts by weight may be added.

The grass protection mat (100) may be added with a thermal oxidation inhibitor to prevent thermal oxidation of the resin due to high temperature during injection molding, and may be added in an amount of 1 to 10 parts by weight based on 100 parts by weight of the polypropylene resin have.

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.

The slip prevention layer 170 may be formed on the surface of the grass protection mat 100, that is, the upper surface of the base frame 110 and the grass vegetation space 120.

The anti-slip layer 170 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, Fluorinated germanium epoxy composite. By forming the mixture in the form of a coating treatment or an immersion treatment, it is possible to provide flame retardancy along with a slip prevention function.

The anti-slip layer 170 may contain 10 to 50 parts by weight of a fluorinated germanium epoxy composite per 100 parts by weight of the rubber-based material.

At this time, the fluorinated germanium epoxy composite is constituted by mixing fluorinated modified germanium modified by fluorination reaction with epoxy for weatherability and adhesiveness.

Here, the anti-slip layer 170 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 30 parts by weight may be added.

Here, the anti-slip layer 170 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.

In the present invention, the grass protection protrusions 180 are formed on the upper surfaces of the grid frame 122 of the base frame 110 and the grass vegetation space 120 so as to protrude upward. .

The lawn guard protrusion 180 serves to prevent slipping in addition to the grass protecting function.

Accordingly, in the present invention, the external force applied through the structure in which the elastic wire 130 (140) is knitted on the lawn protecting mat 100 can perform quick elastic recovery of the stepped portion when released, It is possible to improve the problem that the grass is hardly deformed due to compaction and affect the growth of the grass, and it is possible to improve the phenomenon of lifting the remaining part such as the edge other than the stepped part by the external force, Provide a grass protection mat that can be durable while improving impact absorption and buffering function through elastic action, can prevent slipping through slip prevention layer and grass protection protrusion, and can be used in a stable feeling even on a bending ground .

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.

100: grass protection mat 110: base frame frame
120: grass vegetation space part 121: turf passing space
130: first elastic wire 140: second elastic wire
150: full layer block 170: anti-slip layer

Claims (7)

A base frame frame which is provided by injection molding and arranged on the ground of the turf to be used for protecting the lawn, a quadrangular base frame frame which is positioned at the edge, and a base frame frame which is connected and formed integrally with the inside of the base frame frame, A grass protection mat comprising: a grass vegetation space having a grass passage space therein;
The first elastic wire may be embedded in the base frame and the first elastic wire may be inserted into the hollow of the base frame. Alternatively, the first elastic wire may be embedded in the grass protecting mat by an insert injection method during injection molding. ;
The grass vegetation space is connected to the interior of the base frame by a lattice arrangement frame so that the unit lattices forming a quadrangle are continuously and repeatedly arranged,
The lattice arrangement frame is formed of a lattice arrangement frame of a dual structure spaced apart from each other, and a second elastic line member is fixedly disposed between the lattice arrangement frames of the dual structure. The lattice arrangement frame is provided with a coil-shaped body, ); ≪ / RTI >
Wherein the second elastic wire material is coated with any one material selected from a rubber material or a fabric material so as to protect the grass while allowing the elastic wire material to expand and contract. The method according to claim 1,
Wherein the first elastic wire is provided as a coil-shaped body so as to have a structure capable of elasticity as well as elasticity. The method according to claim 1,
Wherein the grass collision space is disposed on the grass vegetation space in a downward direction at regular intervals, and the elastic collision part is elastically supported in the insert collision part by inserting an elastic spring in an insert injection manner. Grass protection mat. delete delete The method according to claim 1,
Wherein each of the base frame frame and the grass vegetation space has a non-slip layer on an upper surface thereof;
The anti-
A mixture containing at least one fluorinated germanium epoxy compound selected from the group consisting of acrylonitrile butadiene rubber (NBR), ethylene propylene rubber (EPDM), styrene butadiene rubber (SBR), nitrile rubber, butyl rubber, butadiene rubber, The grass protection mat according to the present invention is characterized in that it is formed by applying or immersing the elastic wire material. The method according to claim 1,
And a lawn protection protrusion protruding upward from the upper surface of the lattice arrangement frame of the grass vegetation space to protect the lawn and prevent slippage.

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