KR102133566B1 - Lawn grass protection mat with artificial turf planting and improved assembly structure - Google Patents

Abstract

The present invention relates to a turf protection mat with improved artificial turf planting materials and assembly structures. According to the turf protection mat with improved artificial turf planting materials and assembly structures according to an embodiment of the present invention, it is possible to easily plant artificial turf that helps the growth of natural turf on the turf protection mat. Also, in order to make it easy to assemble a plurality of adjacent turf protection mats, assembly structures are improved in a ball manner. Accordingly, not only skilled people but also beginners can easily install the turf protection mat in a golf course, a green parking lot, a park, or the like. Therefore, the present invention can greatly contribute to the penetration rate of turf protection mats for protecting natural turf.

Description

Artificial turf planting and assembling structure improved lawn protection mat {LAWN GRASS PROTECTION MAT WITH ARTIFICIAL TURF PLANTING AND IMPROVED ASSEMBLY STRUCTURE}

The present invention relates to a lawn protection mat. More specifically, it relates to a lawn protection mat for protecting natural grass from the load of a person or object moving on the natural grass.

For example, the lawn protection mat related to the present invention is disclosed in (Patent Document 1) (hereinafter referred to as'prior art').

According to the prior art, the construction of natural grass (hereinafter referred to as'grass') is gradually expanding in eco-friendly living spaces such as parks, play and rest spaces, sports and leisure facilities such as golf courses. If it is necessary to move repeatedly or intensively or to keep an object for a long time, the growth of grass is impossible, so a grass protection mat is installed to protect the grass.

Such grass protection mats are not only highly used due to the trend toward eco-friendly construction and construction, such as golf courses or green parking lots, but also have many functions such as extending the durability and longevity as well as the original function of protecting grass. Improvement is required.

Looking at the recently developed lawn protection mat, the basic skeleton of a generally polygonal or circular structure is repeatedly connected, and the supporting pillars projecting upward and downward act as skeletons, and the walls are connected between the supporting pillars to maintain strength.

When installing such a lawn protection mat, a pillar that protrudes downwards directly touches the ground, and when a person steps on it or a heavy object is placed on it, it will dig into the ground without restriction of the support pillar, so the lawn protection mat will gradually deepen into the ground. There is a problem that it further interferes with the growth of the grass, such as being dug and digging the ground or touching the roots of the grass, and there are cases where the bottom of the shoe sole is tripped over due to the pillars protruding from the top.

In addition, when a person stepped on the mat while the support pillar touched the ground, the support pillar first touched the sole of the foot, and the hardness of the ground was transmitted to the sole of the foot through several support pillars. .

And it is composed of many walls or connecting parts connected between the support pillars, and the wall is inclined to the lower side at the upper side, while being inclined to the upper side at the lower side. There is a drawback, and there is a disadvantage in that the growth of the grass is impaired due to insufficient growth space, such as the grass is forced to grow between the wall and the connection part.

Therefore, in order to solve this problem, the prior art constitutes a grass protection mat in a flexible and simple configuration as a whole, and when the pressure of a person or an object load is applied, the support pillar of the protection mat excessively digs the ground and damages the lawn and the lawn It provides a lawn protection mat that can prevent the roots of the trees from being damaged and the pillars protruding upwards.

In addition, even when a person pushes on the lawn protection mat, even if a force pushed in the lateral direction acts, the effective movement of the grass protects the foot while protecting the foot by vertically cushioning the mat while ensuring the life of the lawn protection mat due to effective dispersion of force. It provides a lawn protection mat that improves and expands the growth space of the grass so that the grass can grow well.

However, the grass protection mat according to the prior art is an assembly structure with a neighboring lawn protection mat, and discloses a connection hole through which a connection port and the connection port are inserted, and the assembly structure composed of the connection hole and the connection port is adjacent to each other. There is a difficulty in assembling the protective mat easily.

That is, the grass protection mat according to the prior art forms a connector protruding from two sides forming a rim, and connects the grass protection mats adjacent to each other by forming a connection hole inward on the two sides on the opposite side. Reference map The grass protection mats are assembled in groups of four.

Here, the connector is formed in a circular shape with a groove for contraction while protruding from the rim, and it is easy to assemble only when the side is inserted into the connection hole to form a locking protrusion preventing separation.

Therefore, in the lawn protection mat according to the prior art, not only the groove for contraction must be deformed when the connector is inserted into the connection hole, but also a plurality of connectors and the connection hole must be assembled at the same time, so even an expert must use excessive force in the assembly process. There is a problem that can be difficult to disassemble.

In addition, the lawn protection mat according to the prior art is assembled as a group of four neighboring lawn protection mats as described above, the center forming a circle when assembling each other and the fixing hole formed in the center and the division Since the hole is exposed to the outside, dirt or other foreign matter may accumulate in the process of use, and the shoe heel may fall out, which has a problem of acting as a factor causing a safety accident.

Republic of Korea Registered Patent Publication No. 10-1882618

An object of the present invention is to provide an artificial turf plant and an improved turf protection mat having an improved assembly structure to facilitate assembly of artificial turf to the turf protection mat to help the growth of natural turf.

Another object of the present invention is to provide an artificial turf planting and assembly structure improved turf protection mat that can be easily assembled and used as well as easy disassembly of adjacent grass protection mats.

Another object of the present invention is to provide an artificial turf plant and an improved grass protection mat having an improved assembly structure so as to prevent external exposure of a central portion forming a circular shape when assembling four adjacent lawn protection mats.

In order to solve the above problem,

Artificial turf planting according to an embodiment of the present invention and a grass mat having improved assembly structure include a rectangular outer frame;

A vertical support column arranged in the inner space formed through the outer frame;

An outer connection frame connecting each of the vertical support columns and an outer frame; And

An inner connection frame formed in a horizontal direction around each of the vertical support pillars;

It includes,

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A holder consisting of a first protrusion protruding on the upper portion of each of the internal connection frames and a second protrusion spaced apart from the first protrusion so that an insertion space is formed between the first protrusion; And
It is assembled in the longitudinal direction on the upper portion of the interior space through the holder, the artificial turf fastening unit for artificial turf planted on the top surface;

It may further include.
In addition, in the artificial turf planting and assembly structure improved turf protection mat according to an embodiment of the present invention, the holder is formed to intersect the first and second protrusions, facing each other at the top of the first and second protrusions A ring portion arranged to be seen;
It may further include.

In addition, in the artificial turf planting and assembly structure improved turf protection mat according to an embodiment of the present invention, it is arranged on the side of any two sides constituting the outer frame, the connecting pillar formed integrally with the outer frame and the connection Assembly unit consisting of a ball joint formed at the end of the pillar; And
It is formed in the form of a groove on the lower surface of the other two sides constituting the outer frame, a fixed unit consisting of a circular accommodating space for receiving a ball joint and a linear accommodating space for communicating with the circular accommodating space;
It may further include.

In addition, in the artificial turf planting according to an embodiment of the present invention and the grass protection mat having improved assembly structure, the assembly unit is arranged on the side of any two sides adjacent to each other, and the fixing unit is the side of the other two sides adjacent to each other. Can be arranged in.

In addition, in the artificial turf planting according to an embodiment of the present invention and the grass protection mat with improved assembly structure, the outer frame is formed with a quarter-shaped circular connecting section of a quarter size at the bottom of each vertex, , A fixed hole is formed in the vertical direction in the quarter-type connection portion, a connection passage communicating with the fixed hole is formed, and an intermittent protrusion protruding toward the quarter-type connection portion may be formed at the top.

In addition, in the artificial turf planting and assembly structure improved turf protection mat according to an embodiment of the present invention, a size corresponding to the main center portion formed in a circular shape by connecting the four quarter-type connecting portions into one group It is formed of to open and close the upper portion of the main center, a locking protrusion is formed on the outer periphery is limited to the movement in the upper direction by intermittent projection when rotating in one direction, the handle on the top surface is formed with a central lid protruding in a cross shape;

It may further include.

In addition, in the artificial turf planting according to an embodiment of the present invention and the grass protection mat having an improved assembly structure, the center lid is formed to be connected to the end of each handle to be disposed on the outside, and the center lid is rotated in one direction A stopper for limiting rotation by interviewing the side surface of the intermittent protrusion;

It may further include.

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These solutions will become more apparent from the specific details for carrying out the following invention based on the accompanying drawings.

Prior to this, the terms or words used in the specification and claims should not be interpreted in a conventional and lexical sense, and the inventor may appropriately define the concept of terms in order to explain his or her invention in the best way. Based on the principle of being able to be interpreted as meanings and concepts consistent with the technical spirit of the present invention.

According to one embodiment of the present invention, artificial turf for conducive to the growth of natural grass can be easily assembled on the lawn protection mat, thereby effectively improving its assembling workability.

In addition, according to an embodiment of the present invention, not only can the lawn protection mats adjacent to each other be easily assembled and used, but also can be easily disassembled. Therefore, not only an expert but also a beginner can easily install a lawn protection mat in a golf course, a green parking lot, or a park, etc., thereby contributing to increasing the penetration rate of the lawn protection mat for protecting natural grass.

On the other hand, according to an embodiment of the present invention, when assembling four adjacent lawn protection mats, it is possible to prevent the external exposure of the central portion forming a circle, so that it is possible to solve the problem of accumulation of dirt or foreign matter, as well as shoe heel It is possible to prevent the back from falling, which is also effective in preventing safety accidents.

1 is a plan view showing an artificial turf planting and assembly structure improved turf protection mat according to an embodiment of the present invention.
Figure 2 is a perspective view showing the artificial turf planting according to an embodiment of the present invention and a grass protection mat with improved assembly structure when viewed from above.
Figure 3 is a perspective view showing the artificial turf planting according to an embodiment of the present invention and the lawn protection mat with improved assembly structure when viewed from below.
Figure 4a is a perspective view showing an enlarged'A' of the artificial turf plant according to Figure 2 and the grass protection mat with improved assembly structure.
Figure 4b is a perspective view showing an enlarged'B' of the artificial turf plant according to Figure 3 and the grass protection mat with improved assembly structure.
Figure 4c is a perspective view showing an enlarged'C' of the artificial turf plant according to Figure 2 and the grass protection mat with improved assembly structure.
Figure 5 is a perspective view showing the artificial turf planting according to an embodiment of the present invention and the lawn protection mat with improved assembly structure in one group.
Figure 6 is a perspective view showing an enlarged main portion of the artificial turf planting and assembly structure according to Figure 5 improved grass protection mat.
7 is a perspective view showing a fastening unit for artificial turf of artificial turf planting and grass protection mat with improved assembly structure according to an embodiment of the present invention.
Figure 8 is a cross-sectional view showing the artificial turf planting and assembly structure for improving the turf protection mat according to an embodiment of the present invention by assembling the fastening unit for artificial turf.

The specific aspects and specific technical features of the present invention will become more apparent from the following specific contents and embodiments associated with the accompanying drawings. It should be noted that in this specification, when adding reference numerals to the components of each drawing, the same components have the same reference numerals as possible even though they are displayed on different drawings. In addition, in describing an embodiment of the present invention, when it is determined that detailed descriptions of related known configurations or functions may obscure the subject matter of the present invention, detailed descriptions thereof will be omitted.

In addition, in describing the components of the present invention, terms such as first, second, A, B, (a), and (b) may be used. These terms are only for distinguishing the component from other components, and the nature, order, or order of the component is not limited by the term. When a component is described as being "connected", "coupled" or "connected" to another component, the component may be directly connected to or connected to the other component, but another component between each component It should be understood that elements may be "connected", "coupled" or "connected".

Hereinafter, an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1 is a plan view showing an artificial turf planting and assembly structure improved turf protection mat according to an embodiment of the present invention, the vertical support pillar 20 in the inner space 11 formed through the outer frame 10 Arranged, the outer supporting frame 30 and the inner connecting frame 40 are formed around the vertical support pillar 20, and the connecting pillar 51 and the ball joint 52 are formed on the sides of any two sides adjacent to each other. It shows that the assembly unit 50 consisting of protruding from the plane.

Figure 2 is a perspective view showing the artificial turf plant according to an embodiment of the present invention and a grass protection mat with improved assembly structure as viewed from above, perpendicular to the inner space 11 formed through the outer frame 10 A support pillar 20 is arranged, and an outer connecting frame 30 and an inner connecting frame 40 are formed around the vertical supporting pillar 20, and the connecting pillar 51 and the side of any two sides adjacent to each other are formed. The assembly unit 50 composed of the ball joint 52 is formed to protrude, and it is shown that a quarter-type connecting portion 70 is formed at the bottom of each vertex.

Figure 3 is a perspective view showing the artificial turf plant according to an embodiment of the present invention and the grass protection mat with improved assembly structure as viewed from below, assembling unit on the side of any two sides constituting the outer frame 10 (50) is formed protruding, the fixing unit 60 is formed in the form of a groove on the lower surface of the other two sides, showing the lower structure 21 to interconnect the lower end of the vertical support column (20).

4A is a perspective view showing an enlarged view of'A' of the artificial turf planting according to FIG. 2 and the grass protection mat having an improved assembly structure, a connecting pillar 51 and a ball joint 52 on the side of the outer frame 10 It is shown that the assembly unit 50 consisting of a projecting, vertical support pillar 20 and an internal connection frame 40 interconnecting the vertical support pillar 20 are arranged in the inner space 11.

4B is a perspective view showing an enlarged view of'B' of the artificial turf planting according to FIG. 3 and an improved assembly structure of the turf protection mat, with a circular receiving space 61 and a linear receiving space on the lower surface of the outer frame 10 ( A fixed unit 60 made of 62) is formed, and shows the configuration of the lower structure 21 interconnecting the lower ends of the vertical support columns 20.

Figure 4c is a perspective view showing an enlarged'C' of the artificial turf planting according to Figure 2 and the improved grass protection mat assembling structure, the quarter-shaped connecting portion 70 at the bottom of the vertex of the outer frame 10 is a stepped shape It is formed of, and a fixed hole 71 and a connecting passage 72 communicating with the fixed hole 71 in the vertical direction are formed in the quarter-type connection part 70, and the intermittent protrusion protruding toward the quarter-type connection part 70 is formed. It shows that the projection 73 is formed at the top.

As shown in Figures 1 to 4c, the artificial turf planting and assembly structure improved grass protection mat (hereinafter referred to as'grass protection mat') according to an embodiment of the present invention includes a rectangular outer frame 10 . And the outer support frame 20 and the outer support frame 20 which is arranged in the inner space 11 formed through the outer frame 10 and the vertical support pillar 20 to the outer frame 10 and the It is composed of an injection material that includes an inner connection frame (40) formed in a horizontal direction around a vertical support column (20).

Here, the vertical support pillar 20 is arranged in a honeycomb shape in the inner space 11, and it is illustrated and shown, but it is revealed that the arrangement is not necessarily limited to a hexagon.

That is, there is no problem in achieving the technical features of the present invention, even if the vertical support column 20 is arranged in a circular shape as well as a triangular, square, pentagonal shape through injection molding. Therefore, it is merely arranged in the form of a honeycomb in the drawing.

In addition, the internal connection frame 40 is formed in the horizontal direction around the vertical support column 20 for the purpose of connecting each vertical support column 20, but all the internal connection frames 40 are each It is not necessary to connect the vertical support columns 20, but it is revealed in advance that the connection and the unconnection can be repeated alternately one by one (see 4a).

The vertical support pillar 20 and the internal connection frame 40 are arranged in the interior space 11, and the lawn protection mat 1 is further formed with a lower structure 21 formed at the bottom of the vertical support pillar 20. It can contain.

That is, the lower structure 21 connects each of the vertical support columns 20 while being disposed to be staggered with the inner connection frame 40 to fill the inner space 11, thereby protecting grass from being damaged (see FIG. 4B). ).

However, the configuration of the sub-structure 21 is not directly related to the main technical features of the present invention, but also corresponds to a well-known configuration well known in the art, and can be easily implemented without a specific description, and will be omitted below. Reveal in advance.

Returning to the outer frame 10 again, the outer frame 10 is formed in a quadrangle through the configuration of any two sides adjacent to each other and the other two sides adjacent to each other. And on either side of the two sides, an assembly unit 50 consisting of a connecting column 51 integrally formed with the outer frame 10 and a ball joint 52 formed at an end of the connecting column 51 is formed.

In addition, the lower surfaces of the other two sides are formed in the form of grooves and are formed in communication with the circular receiving space 61 in which the ball joint 52 is accommodated and the circular receiving space 61 to receive the connecting pillar 51. The fixing unit 60 composed of the receiving space 62 is formed.

Therefore, it is possible to assemble the lawn protection mat 1 by a method of accommodating the assembly unit 50 through the fixing unit 60, which assembles any one assembly unit 50 to the fixing unit 60, Subsequently, by sequentially assembling the remaining assembly unit 50 to the fixing unit 60, it is possible to assemble the lawn protection mat 1 easily, even for a beginner as well as a skilled person.

That is, according to an embodiment of the present invention, when any one ball joint 52 is accommodated in the circular accommodation space 61, like the universal joint (Universal Joint), the lawn protection mat around the ball joint 52 ( By allowing vertical movement (flowability) of 1), it is easy to assemble the four grass protection mats 1 in the drawing.

FIG. 5 is a perspective view showing artificial turf planting and improved turf protection mats according to one embodiment of the present invention connected in one group, through assembly unit 50 formed in outer frame 10. The grass protection mats (1) of the dog are shown as being connected in one group.

6 is an enlarged perspective view showing the main portion of the artificial turf plant according to FIG. 5 and the improved grass protection mat according to the assembly structure, wherein the handle 82 is formed in a cross shape on the upper surface, and the end of each handle 82 On the stopper 83 is formed, the center lid 80 is formed with a locking projection 81 on the outer periphery is shown by separating from the lawn protection mat (1).

5 to 6, the lawn protection mat 1 according to an embodiment of the present invention may be configured by assembling four into one group, in this case, the assembly unit 50 and the fixing unit 60 While being assembled through each other, each vertex is fixed to the ground to prevent movement.

To this end, the lawn protection mat 1 is formed with a quarter-shaped quarter-shaped connection portion 70 of a circular shape at the bottom of each vertex of the outer frame 10, and a fixing hole in the vertical direction to the quarter-type connection portion 70 71 is formed, and a connecting passage 72 communicating with the fixing hole 71 is formed. In addition, an intermittent protrusion 73 protruding toward the quarter-type connecting portion 70 is formed at an upper end of the outer frame 10.

Therefore, when connecting the four quarter-type connecting portions 70 to the central portion (hereinafter referred to as the'main center portion') that is formed in a circular shape, such as a U-shaped anchor bolt through a fixing hole 71 and a connecting passage 72, As a method of fastening the conventional fastening means, four lawn protection mats 1 can be fixedly installed on the ground.

Here, the method of fixing the main center portion 12 to the ground through the U-shaped anchor bolt (not shown) corresponds to a known technique in this technical field. However, in this case, the main center portion 12 is exposed to the outside, in that the center lid 80 is provided to cover the main center portion 12 to block foreign substances from entering and to protect them at the same time. There are features.

The center lid 80 is formed in a disc shape having a size corresponding to the main center portion 12 to open and close the main center portion 12, and is caught by the intermittent protrusion 73 when rotated in one direction to the upper direction. A locking protrusion 81 that restricts movement is formed on the outer circumference, and the handle 82 is formed to protrude in a cross shape on the upper surface.

In addition, the center lid 80 is formed to be connected to the end of each handle 82 and is disposed on the outside, and when the center lid 80 is rotated in one direction, it faces the side of the intermittent protrusion 73 to limit rotation. It may further include a stopper (83).

Therefore, according to an embodiment of the present invention, by providing the center lid 80 for opening and closing the main center portion 12 formed in a circular shape when assembling four lawn protection mats 1, the main center portion 12 is normally It is possible to prevent external exposure, so that it can solve the problem of accumulation of soil or foreign substances, as well as prevent shoes from falling off, which is effective in preventing safety accidents as well as the center covering the main center part 12 Since the lid 80 can be prevented from being separated, the lawn protection mat 1 can be conveniently and safely used.

7 is a perspective view showing a fastening unit for artificial turf of artificial turf planting and an improved turf protection mat according to an embodiment of the present invention, wherein the artificial turf is planted on the upper surface of the artificial turf fastening unit 90 It shows the composition of.

8 is a cross-sectional view showing a synthetic turf fastening unit for artificial turf planting and an improved turf protection mat according to an embodiment of the present invention assembled through an artificial turf, and a fastening unit for artificial turf 90 through the holder 41 ) Is a cross-section of the lawn protection mat (1) constructed by being assembled on the upper side, and it is shown when viewed from the side.

As shown in Figures 7 to 8, the turf protection mat 1 according to an embodiment of the present invention is used to assemble artificial turf before natural grass is transplanted and developed. And for this purpose it may further include a fastening unit 90 for artificial turf.

The fastening unit 90 for the artificial turf is a kind of chop that is formed to have a narrow width compared to the length, and the T-shaped body 91 with artificial turf planted on the upper surface and the separating prevention protrusions formed on the lower left and right sides of the body 91 ( 92). And for the assembly of the fastening unit 90 for the artificial turf, a holder 41 is formed on the upper portion of the internal connection frame 40.

The holder 41 is composed of a first protrusion 41a formed to protrude on the upper portion of the internal connection frame 40 and a second protrusion 41b spaced apart to form an insertion space between the first protrusion 41a. do.

That is, by accommodating the fastening unit 90 for artificial turf in the insertion space formed inside the holder 41, it can be assembled in the longitudinal direction on the top of the inner space 11, this process is the fastening unit for artificial turf ( 90) is assembled from the top of the grass protection mat (1) toward the bottom.

In addition, the holder 41 is formed to intersect with the first and second protrusions 41a and 41b, and the ring portions 41c disposed to face each other on the upper end of the first and second protrusions 41a and 41b. It may further include, it is possible to prevent the separation of the fastening unit 90 for artificial turf through the combination of the ring portion (41c) and the separation preventing projection (92).

Therefore, according to an embodiment of the present invention, the fastening unit 90 for artificial turf, which is assembled before the development of natural grass, can be easily assembled on the lawn protection mat 1, thereby effectively improving the workability for assembling it. have.

The present invention has been described in detail by way of example, but this is for explaining the present invention in detail, and the artificial turf planting according to the present invention and the improved grass protection mat having an improved assembly structure are not limited thereto. In addition, the terms "include", "consist", or "have" as described above mean that the corresponding component can be inherent unless specifically stated to the contrary, excluding other components However, it should be interpreted as being able to further include other components, and all terms, including technical or scientific terms, are generally understood by those skilled in the art to which the present invention pertains, unless otherwise defined. It has the same meaning as being.

In addition, the above description is merely illustrative of the technical idea of the present invention, and those skilled in the art to which the present invention pertains can variously modify and modify the scope without departing from the essential characteristics of the present invention. Therefore, the exemplary embodiments disclosed in the present invention are not intended to limit the technical spirit of the present invention, but to explain the scope, and the scope of the technical spirit of the present invention is not limited by the exemplary embodiments. The scope of protection of the present invention should be interpreted by the claims below, and all technical spirits within the scope equivalent thereto should be interpreted as being included in the scope of the present invention.

1: Grass protection mat 10: Outer frame
11: Interior space 12: Main center
20: vertical support column 21: substructure
30: outer connecting frame 40: inner connecting frame
41: holder 41a: first protrusion
41b: second protrusion 41c: hook
50: assembly unit 51: connecting pillar
52: ball joint 60: fixing unit
61: circular accommodation space 62: linear accommodation space
70: quarter-type connection 71: fixing hole
72: connecting passage 73: intermittent protrusion
80: center lid 81: jam
82: handle 83: stopper
90: fastening unit 91: body
92: separation preventing projections

Claims (6)

A rectangular outer frame;
A vertical support column arranged in the inner space formed through the outer frame;
An outer connection frame connecting each of the vertical support columns and an outer frame; And
An inner connection frame formed in a horizontal direction around each of the vertical support pillars;
It includes,
A holder consisting of a first protrusion protruding on the upper portion of each of the internal connection frames and a second protrusion spaced apart from the first protrusion so that an insertion space is formed between the first protrusion; And
It is assembled in the longitudinal direction on the upper portion of the interior space through the holder, the artificial turf fastening unit for artificial turf planted on the top surface;
Artificial turf planting further comprising a grass protection mat with improved assembly structure.
The method according to claim 1,
The holder is formed to intersect with the first and second protrusions, and a ring portion disposed to face each other on top of the first and second protrusions;
Artificial turf planting further comprising a grass protection mat with improved assembly structure.
The method according to claim 1,
An assembly unit arranged on the side of any two sides constituting the outer frame, and consisting of a connecting column integrally formed with the outer frame and a ball joint formed at an end of the connecting column; And
It is formed in the form of a groove on the lower surface of the other two sides constituting the outer frame, a fixed unit consisting of a circular accommodating space for receiving a ball joint and a linear accommodating space for communicating with the circular accommodating space;
Artificial turf planting further comprising a grass protection mat with improved assembly structure.
The method according to claim 1,
The outer frame is formed with a circumferential quarter-sized quarter-shaped connecting portion in the form of a staircase at the bottom of each vertex, a fixing hole is formed in the vertical direction to the quarter-type connection portion, and a connecting passage communicating with the fixing hole is formed. Artificial turf planting and assembly structure improved turf protection mat characterized in that the intermittent protrusion protruding toward the quarter-type connecting portion is formed on the top.
The method according to claim 4,
The four quarter-type connecting parts are formed as a group to form a size corresponding to the main center part which is formed in a circular shape to open and close the upper part of the main center part. The central projection is formed on the outer periphery of which movement is restricted to the outer periphery, and the handle is protruded in a cross shape on the upper surface;
Artificial turf planting further comprising a grass protection mat with improved assembly structure.
The method according to claim 5,
The center lid is formed to be connected to the end of each handle is disposed on the outside, and when the center lid is rotated in one direction, the stopper for limiting rotation by interviewing the side of the intermittent protrusion;
Artificial turf planting further comprising a grass protection mat with improved assembly structure.

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