JPH10295202A - Lawn protection - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a lawn protection material which is lightweight, has good moldability, can reduce adverse effects on grass and the ground, and can improve walking comfort by moderate cushioning. SOLUTION: In a synthetic resin lawn protection material formed by connecting a large number of pressure receiving members receiving a treading pressure at a connecting portion and forming a lattice shape, a pressure receiving member 1 and a connecting portion (a first connecting portion 2 and a second connecting portion). 3) is formed in an inverted J shape.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lawn protection material, and more particularly, to a lawn protection material made of synthetic resin for protecting lawn from being pressed against shoes or wheels.

[0002]

2. Description of the Related Art Lawns have conventionally been created in various places as simple green spaces that provide comfort to urban spaces, and the action of purifying air pollution by photosynthesis has also been evaluated. Furthermore, in recent years, with the development of non-permeable concrete pavements in urban areas, new problems such as the occurrence of floods and the depletion of groundwater sources have arisen. One of the solutions to such problems is water retention and permeability. Excellent lawn utility is being re-evaluated.

[0003] Lawns are bred so that each lawn is spread by an underground stalk called a runner to cover the ground. It is important to secure the structure of the upper soil and to improve drainage. However, lawns are constantly trimmed short and often under the adverse conditions of being frequently trampled by heavy objects such as people and automobiles. Is difficult.

[0004] For this reason, in lawn vegetation such as golf courses and parks, the purpose of protecting the lawn's upper limb structure from the pressure of heavy objects and protecting the lawn itself from external force is as follows.
A lawn protection material provided with a large number of pressure receiving members at each intersection of the vertical and horizontal lattices is used (see Registered Design No. 706520). This lawn protection material is intended to protect the lawn by connecting a number of connecting parts provided on the outer periphery of the lawn protection material, and the lawn protection material is roughly divided into mats that are simply laid on the surface of the lawn. There are a block type and a block type in which lawns are planted on the soil surface in the gap between the pressure receiving bodies by increasing the pressure receiving bodies.

[0005]

However, in the conventional lawn protection material, the pressure receiving portion and the connecting portion connecting the pressure receiving portions are formed in a semi-cylindrical shape except for a through hole portion.
The pressure receiving portion and the lower surface of the connecting portion had a planar shape. Forming the pressure receiving part and connecting part in a solid structure in this way not only increases the weight due to the need for a large amount of material, but also takes time to cool down during molding due to the thick wall, so that sinks are likely to occur, and cycle Also becomes longer. Further, since the treading force or the like is directly transmitted to the lawn or the ground, the lawn is damaged or the ground is hardened, and the lawn protection material itself is generally hard, so that walking comfort is not good.

Accordingly, an object of the present invention is to provide a lawn protection material which is lightweight, has good moldability, can reduce the adverse effect on grass and the ground, and can improve walking comfort by moderate cushioning. .

[0007]

In order to achieve the above object, a lawn protection material according to the present invention is a synthetic resin lawn protection material formed by connecting a plurality of pressure receiving bodies receiving tread pressure at connecting portions in a lattice shape. In the material, the pressure receiving body and the connecting portion are formed in an inverted J-shape by a substantially vertical vertical side having a lower end contacting the ground and a horizontal side extending substantially horizontally from the top of the vertical side. It is characterized by:

[0008]

1 to 7 show an embodiment of a lawn protection material according to the present invention. FIG. 1 is a plan view omitting a central portion, and FIG. 2 is an enlarged plan view of a main portion. 3 is III-II in FIG.
FIG. 4 is a cross-sectional view taken along line IV-IV of FIG. 2, and FIG.
6 is a sectional view taken along line VV, FIG. 6 is a sectional view taken along line VI-VI in FIG.
Is a sectional view taken along the line VII-VII in FIG. 2, and FIG. 8 is a longitudinal sectional view showing another example of the shape.

The lawn protection material shown in the present embodiment comprises a hollow quadrangular truncated pyramid-shaped pressure receiving body 1 formed by connecting a first connecting portion 2 and a second connecting portion 3 at equal intervals in the vertical and horizontal directions. The male connection part 4 and the female connection part 5 for connecting the lawn protection materials at the time of laying are point-symmetric with respect to the lawn protection material center point. It is provided in each position.

As shown in FIGS. 3 to 5, the pressure receiving body 1 has a substantially vertical vertical side 11 having a lower end in contact with the ground.
An arc-shaped horizontal side 12 extending in a substantially horizontal direction from the top of the vertical side is formed in an inverted J-shape.
A number of small projections 13 are provided on the top of 2 to prevent slippage. A groove 14 corresponding to the lower shape of the first connecting portion 2 is formed in a connecting portion between the pressure receiving members 1 and the first connecting portion 2 connecting the pressure receiving members 1 to each other.

As shown in FIG. 6, the first connecting portion 2 also
Similarly to the pressure receiving body 1, an inverted J-shape comprising a substantially vertical vertical side 21 having a lower end in contact with the ground and an arcuate horizontal side 22 extending substantially horizontally from the top of the vertical side. The vertical side 21 is provided on the outer peripheral side of the first connecting portion 2 having an arc shape. Also, as shown in FIG.
The second connecting portion 3 is formed in an inverted U-shape in which the lower surface portion 31 is stolen.

Since the pressure receiving body 1 and the first connecting portion 2 are formed in an inverted J shape as described above, not only can the lawn protection material be reduced in weight and material can be saved, but also the overall thickness can be reduced.
Cooling at the time of molding is completed in a short time, the occurrence of sinks is reduced, the cycle is shortened, and the productivity can be improved. Further, since the pressure receiving member 1 and the like are easily elastically deformed, the treading pressure and the like are not directly transmitted to the lawn or the ground, and the lawn is not damaged or the ground is hardened. In addition, since the cushioning property is increased by the elastic deformation of each member, walking comfort is improved.

As shown in FIG. 8, a lower surface of a vertical side 21 of the pressure receiver 1 has a slope 1 corresponding to the upper surface shape of the pressure receiver 1.
By providing 5, the stability when the lawn protection material is laminated can be improved.

The portion formed in an inverted J-shape may be the entire pressure receiving body 1 or the first connecting portion 2, or may be only a part thereof. Further, the horizontal side may be formed in an inverted L-shape, which is not an arc but a straight line.

[0015]

As described above, the lawn protection material of the present invention is lightweight, has good moldability, has little adverse effect on the lawn and the ground, and can improve walking comfort with a moderate cushioning property.

[Brief description of the drawings]

FIG. 1 is a plan view of an example of a lawn protection material according to the present invention, in which a central portion is omitted.

FIG. 2 is an enlarged plan view of a main part.

FIG. 3 is a sectional view taken along line III-III of FIG. 2;

FIG. 4 is a sectional view taken along line IV-IV of FIG. 2;

FIG. 5 is a sectional view taken along line VV of FIG. 2;

FIG. 6 is a sectional view taken along line VI-VI of FIG. 2;

FIG. 7 is a sectional view taken along line VII-VII of FIG. 2;

FIG. 8 is a longitudinal sectional view showing another example of the shape.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Pressure receiving body, 11 ... Vertical side, 12 ... Horizontal side, 13 ... Small protrusion, 14 ... Groove, 15 ... Slope, 2 ... First connection part, 21 ... Vertical side, 22 ... Horizontal side, 3 ... Second connection Part, 31 ... lower surface part,
4: Male connection, 5: Female connection

Claims (1)

[Claims] 1. A synthetic resin lawn protection material formed by connecting a large number of pressure receiving members receiving a treading pressure at a connecting portion to form a grid, wherein the pressure receiving member and the connecting portion are substantially perpendicular to each other with lower ends abutting on the ground. A lawn protective material characterized by being formed in an inverted J-shape by a vertical side in the direction and a horizontal side extending in a substantially horizontal direction from the top of the vertical side.