JPH0949206A - Artificial lawn - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an artificial lawn capable of being settled with less influence and burden on a human body (specially knees, etc.) even when strenous exercises such as sports, etc., are taken, make it possible to lessen tiredness or troubles, provide the artificial lawn with high restoring force and stability and to lessen the necessity of maintenance. SOLUTION: A large number of bar-shaped elastic bodies 9 are provided on a bedrock 1 in an erecting state at specific intervals, and a plurality of lawn imitation leaf pieces 13 are provided to each of the elastic bodies 9 so as to grow dense in a state to project them upward. The elastic bodies 9 are provided to the bedrock 1 in a detachable manner. The bedrock 1 and elastic bodies 9 are embedded in sand and earth, and the lawn imitation leaf pieces 13 are projected upward from the sand and earth.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an artificial lawn which is mainly laid and used on a ground for sports competitions and the like.

[0002]

2. Description of the Related Art Conventionally, an artificial lawn used for sports competition is constructed by weaving or stitching a lawn leaf piece 32 into a fine base fabric 31 as shown in FIG.
Asphalt concrete paved ground 3
21 is attached to or placed on the asphalt concrete pavement ground 35, or a carpet-like artificial lawn 34 formed by weaving or sewing lawn leaf pieces 32 on a fiber base fabric 31 as shown in FIG. The lawn leaf pieces 32 filled with sand 36 is the mainstream.

[0003]

What can be said to be common to the above-mentioned conventional products is that all of them require a hard ground called an asphalt concrete pavement ground 35, which is as flexible as ordinary ground. This is because if it is used directly on the ground, there is a problem that the surface of the artificial lawn 34 becomes uneven.

However, if the ground is made of a hard ground such as asphalt concrete pavement ground 35, the impact on the human body (particularly the knees) during intense exercise such as competition,
It is a heavy burden and makes you tired easily, and has various other harmful effects on your body. First, a carpet-like artificial lawn 34 shown in FIG.
Regarding, when sliding or rolling, the frictional resistance is greater than that of the ground of sand and soil, and the body is burdened. In addition, when it moves violently, it will be consumed and damaged quickly, and repairs and replacements will increase.

Next, as shown in FIG. 21, a piece of grass-shaped lawn leaf 32 is shown.
If you put sand soil 36 in the part, the lawn leaf piece 32
Since the sand soil 36 is put in the part, the lawn leaf pieces 32 and the sand soil 36 can be easily moved when they move, slide, or fall violently.
Since it is supple and weak in resilience, it has the inconvenience of falling. Therefore, it had to be maintained frequently.

In view of the above problems, the present invention has an effect on the human body (particularly the knees) even during intense exercise such as competition.
The burden is small, fatigue and breakdown can be reduced, and the restoring force is good and the stability is good, so that the need for maintenance is reduced.

[0007]

The first technical means of the present invention for solving this technical problem is that a plurality of rod-shaped elastic bodies 9 are provided in a standing manner on a base 1 at intervals. A plurality of grass imitation leaf pieces 13 are provided on each elastic body 9 in a protruding manner so as to be crowded. The second technical means of the present invention is that the elastic body 9 is detachably provided on the base 1.

[0008] A third technical means of the present invention is the base 1
And the elastic body 9 is buried in the sand soil, and the lawn imitation leaf pieces 13 project upward from the sand soil. Therefore, the structure has no unevenness without forming a solid ground such as asphalt concrete pavement ground, and the elastic body 9 can adapt to a load in any direction due to a vigorous motion, which is a burden on the human body. Can be greatly alleviated, which can greatly contribute to fatigue and failure. Further, since the elastic body 9 as a single body is excellent in resilience, it is possible to keep a stable product by always restoring to the original when it fluctuates when a load is applied.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention will be described below with reference to the embodiments shown in the drawings. In FIGS. 1 and 2, reference numeral 1 denotes a base, which is made of a hard material (for example, synthetic resin such as ethylene vinyl acetate) and has a large number of rectangular box-shaped supports 4 having a top wall 2 and side walls 3, and a support. Connected body 5 that connects the bodies 4 together
And a circular mounting hole 6 is provided in the top wall 2 of each support body 4.

Reference numeral 9 designates a rod-shaped elastic body, which is made of a single elastic material such as rubber or elastic rich plastic.
A mounting recess 10 is provided in the upper part of the, and an annular engaging groove 11 is provided in the lower part of the elastic body 9. Reference numeral 13 denotes a lawn imitation leaf piece, which is made of, for example, a nylon-based synthetic resin, and the lower portion of the lawn imitation leaf piece 13 is inserted and fixed in a bundle in the mounting recess 10 of the elastic body 9.
3 is projected upward so as to crowd from the elastic body 9.

There are many elastic bodies 9, and the lower portion of the elastic body 9 is inserted into the mounting hole 6 of the support body 4 of the base 1 to mount the mounting hole 6
By engaging the engaging grooves 11 of the elastic body 9 with the edges of the elastic body 9, a large number of elastic bodies 9 are provided in a standing manner on the base 1 at intervals. In use, the artificial grass in the above-mentioned embodiment is laid on the ground of ordinary soil, and the base 1 of the artificial grass and the elastic body 9 provided upright on the base 1.
Is a grass imitation leaf piece 13 that was buried in sand soil 15 and crowded
Is protruding from the sand soil.

When used in this manner, the large number of elastic bodies 9 are scattered in the ground so that the tackiness of the sand soil 15 can be individually cut off, which results in loosening the sand soil 15. Therefore, a soft ground is always formed. Further, as shown in FIGS. 4 to 6, the sand 15 is also loosened by the elastic body 9 expanding and contracting and bending.
When the sand soil 15 is loosened, the elastic body 9 is easily activated, and as a result, the elastic body 9 becomes soft to the human body.

Therefore, the elastic body 9 is also liable to exhibit movement and contracts when an upper load is applied due to vigorous motion, etc. The elastic body 9 flexes and twists depending on the degree of load against the load from the front, rear, left and right. It can be applied to all kinds of loads, such as action. For example, when a twist load is applied to the lawn as shown in FIG. 3, each elastic body 9 independently twists in response to this load and adapts to this twist load. The strength of the base 1 and the length, thickness, and shape of the elastic body 9 are selected depending on the type of sport (intense sports, moderate sports), and the length of the lawn imitation leaf pieces 13 is selected.
You can play more comfortably by changing the hardness etc. or combining them to make it a composition suitable for sports.

As another feature, since the elastic bodies 9 are independently formed on the base 1,
For example, as shown in FIG. 7 and FIG.
Each one of them flexes in accordance with the degree of load of that portion and makes different movements, so that the elastic body 9 moves only in the portion where the foot, hand or other body hits when playing,
Overall stability is obtained because it does not affect other parts. Further, the mounting method of the base 1 and the elastic body 9 is a fitting type and the elastic body 9 may be configured to be detached when an extreme load is applied, and the elastic body 9 is detached from the base 1. It greatly helps alleviate the extreme load impact on the human body and effectively prevents injury. Further, the color, length, strength, etc. of the lawn imitation leaf pieces 13 can be changed by utilizing a group of elastic bodies 9 one by one, and characters and lines can be drawn depending on the difference in color.

Next, regarding the movement of the elastic body 9 when receiving a load, first, when a load such as a foot, a hand, or a body is applied, the strength, weakness, and direction of the impact depend on the position where the load is applied. Etc. will make a difference. There are places that are strongly joined, some places that are weakly joined, some places that are joined in a twisted state, and there are differences in the strength, weakness, direction, etc. of the impact depending on the shape of the added thing. For example, if there is a round one, the load will spread in all directions. In such a case, in the present invention, the single elastic body 9 is scattered in the ground sand soil 15, so that at the point where the load is applied, each elastic body 9 receives one load when a shock is applied. It is possible to respond to small load degrees such as strength and weakness and twist within a point, shrinking at some parts, bending at some parts, and mitigating shocks according to complex load shock due to twisting and motion at some parts. , The burden on the human body is greatly reduced and comfortable play is possible.

The elastic body 9 responds to the direction and degree of the load, such as twisting, compression, extension, bending, and the like by various and complicated external loads, and shows respective movements. That is, the repulsive force after the load is applied (large if the degree is large, small if the degree is small), and it also serves as a force for restoring itself and restoring the sand soil 15. The layer of sand and soil is more likely to move closer to the surface of the upper part, and is stable at the deeper part of the lower part. Therefore, the movement of the elastic body 9 is also easy to fluctuate in the upper part, and the lower part is less likely to fluctuate. The elastic body 9 is easily activated in the upper part where the impact is great, and the base 1 is not easily affected and is stable, which is most suitable as an artificial lawn to be laid on the ground for sports or the like.

Regarding each movement according to the constitution of the present invention, in terms of a natural plant, a lawn imitation leaf piece 13
Is a leaf, the elastic body 9 is a stem, and the base 1 part is a root, and it can be said that it is an artificial lawn similar to a natural plant with the movement of each part. 9 and 10 show another embodiment, in which the base 1 and the elastic body 9 are integrally formed of the same material (for example, synthetic resin such as ethylene vinyl acetate), and the elastic body 9 is made of, for example, a nylon-based material. A plurality of grass imitation leaf pieces 13 made of synthetic resin are provided in a protruding shape so as to be crowded, and the base 1 includes a disc-shaped support body 4 and a connecting body 5 that connects the support bodies 4 to each other. An elastic body 9 is integrally provided on the support body 4 so as to project upward. Other configurations are the same as those in the above-mentioned embodiment.

FIG. 11 shows a modification of the embodiment shown in FIGS. 9 and 10, in which the support 4 and the elastic body 9 of the base 1 are formed short. 12 to 19 show other embodiments, and FIG. 12 shows the elastic body 9 having different thicknesses. In FIG. 13, the length of the elastic body 9 is made different, and the length of the imitation grass piece 13 is made different. FIG. 14 shows a structure in which the thickness and the length of the elastic body 9 are made different and the length of the imitation grass piece 13 is made different, and the elastic body 9 made thick is made long and the elasticity made thin is made. The body 9 is formed short. FIG. 15 is different from the case of FIG. 14 in that the thickness and the length of the elastic body 9 are made different and the length of the imitation grass piece 13 is made different as in the case of FIG. The thin elastic body 9 is made long and the thick elastic body 9 is made short. In FIG. 16, the length of the elastic body 9 is made different, and the length of the lawn imitation leaf piece 13 is made constant. FIG.
Is the one in which the thickness and the length of the elastic body 9 are made different and the length of the imitation grass piece 13 is made constant. FIG.
Is to make the thickness and length of the elastic body 9 constant and to make the length of the imitation grass leaf 13 different. In FIG. 19, the thickness of the elastic body 9 is made different and the length is made constant, and the length of the imitation grass piece 13 is made different.

In the above embodiment, the elastic body 9 is detachably attached to the base 1, or the elastic body 9 is formed integrally with the base 1. However, instead of this, the elastic body 9 is formed. 9 may be fixed to the base 1 with an adhesive or the like.

[0020]

According to the present invention, the artificial lawn does not have to be laid on a solid ground such as an asphalt concrete pavement ground, and the elastic body 9 can be subjected to a load in any direction due to the heavy motion even during a heavy motion such as a competition. It can be adapted and the impact / burden on the human body (particularly the knees) can be reduced, reducing fatigue and breakdown. Moreover, due to the elasticity of the elastic body 9, the restoring force is improved, a stable product can be maintained, and the need for maintenance is reduced.

[Brief description of drawings]

FIG. 1 is a sectional view taken along line AA of FIG. 2 showing an embodiment of the present invention.

FIG. 2 is a plan view of the same.

FIG. 3 is a sectional view for explaining the same operation.

FIG. 4 is a sectional view for explaining the same operation.

FIG. 5 is a plan view for explaining the same operation.

FIG. 6 is a cross-sectional view for explaining the same operation.

FIG. 7 is a side sectional view for explaining the same operation.

FIG. 8 is a side sectional view for explaining the same operation.

FIG. 9 is a plan view showing another embodiment.

10 is a cross-sectional view taken along the line BB of FIG.

FIG. 11 is a side sectional view showing another embodiment.

FIG. 12 is a side view showing another embodiment.

FIG. 13 is a side view showing another embodiment.

FIG. 14 is a side view showing another embodiment.

FIG. 15 is a side view showing another embodiment.

FIG. 16 is a side view showing another embodiment.

FIG. 17 is a side view showing another embodiment.

FIG. 18 is a side view showing another embodiment.

FIG. 19 is a side view showing another embodiment.

FIG. 20 is a sectional view showing a conventional example.

FIG. 21 is a front view showing another conventional example.

[Explanation of symbols]

 1 Base 9 Elastic 13 Lawn imitation leaf pieces

Claims (3)

[Claims] 1. A plurality of rod-shaped elastic bodies (9) are provided on a base (1) in a standing manner at intervals from each other so that a plurality of lawn imitation leaf pieces (13) are crowded on each elastic body (9). An artificial lawn characterized by being provided in a protruding shape on the top. 2. The elastic body (9) is detachably attached to the base (1).
Artificial grass described in. 3. The base (1) and the elastic body (9) are embedded in sandy soil, and the lawn imitation leaf pieces (13) are projected upward from the sandy soil. Artificial lawn.