JPH10295200A - Lawn protection - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a lawn protecting material which is surely fixed to flexibly correspond to a molding distortion, temp. change and outer force from respective directions by forming articulating parts by means of specified first and second articulating parts respectively. SOLUTION: Multiple pressure receiving bodies for receiving trampling are connected by the articulating parts 2 and 3 so as to form a grid-shaped and synthetic resin-made lawn protecting material. In the material, the articulating parts 2 and 3 are formed by the first articulating part 2 for connecting the two adjacent pressure receiving bodies 1 and the second articulating part 3 which is positioned between the four pressure receiving bodies 1 so as to connect a pair of opposing first articulating parts 2. Beside, it is favorable that the second articulating part 3 is adopted as the mounting part of fitting fixtures for fixing the lawn protecting material on the ground, the first articulating part 2 is projected in a second articulating part 3 direction in its center part and the second articulating part 3 is formed in a direction where the directions of the adjacent second articulating parts 3 are perpendicularly crossed.

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]

The lawn protection material as described above is generally manufactured by injection molding of a synthetic resin, and the pressure receiving members are connected to each other at a linear connecting portion to form a vertical and horizontal lattice. However, with such a shape, it is difficult to absorb deformation due to molding distortion due to uneven temperature during molding or deformation due to external force. In order to absorb such deformation, it is conceivable to make the connecting portion connecting each pressure receiving member into a curved shape or a shape close thereto, but if the connecting portion is simply formed in a curved shape, the expansion and contraction direction is biased. However, it was not preferable as a lawn protection material that should flexibly respond to external forces from all directions.

Further, the lawn protection material is fixed to the ground by fixing a pressure receiving member itself or a fixing portion provided at a specific position other than the pressure receiving member with a fixing tool such as a pin. When the pressure receiving member moves up and down due to the treading pressure, the pin or the like may be lifted, and when a fixing portion is provided at a specific position, the place where the pin or the like is stopped is limited.

Accordingly, the present invention provides a lawn protection material that can reliably fix the lawn protection material and can flexibly cope with deformation due to temperature unevenness during molding, temperature change, and deformation due to external force and the like. It is intended to be.

[0008]

In order to achieve the above-mentioned object, a lawn protection material of the present invention is a lawn protection made of synthetic resin in which a large number of pressure receiving bodies receiving tread pressure are connected at a connecting portion to form a lattice. In the material, the connecting portion may be a first connecting portion connecting two adjacent pressure receiving members, and a first set of opposing first ones of the first connecting portions located between four pressure receiving members. It is characterized by being formed by a second connecting portion connecting the connecting portions.

Further, the lawn protection material of the present invention is characterized in that
The connecting portion is a mounting portion of a fixture for fixing the lawn protection material to the ground, and a central portion of the first connecting portion is bent or bent in the direction of the second connecting portion and projects.
The second connecting portion is formed in a direction in which directions of adjacent second connecting portions intersect at right angles.

[0010]

1 to 3 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. 3 is a sectional view taken along line I. FIG. 4 is a plan view of a main part showing another embodiment of the lawn protection material of the present invention, and FIG. 5 is a plan view of a main part showing still another embodiment.

First, the lawn protective material shown in FIGS.
The same number of hollow square truncated pyramid-shaped pressure-receiving bodies 1 are arranged at equal intervals in the vertical and horizontal directions by the first connecting portion 2 and the second connecting portion 3 to form a square shape. The male connecting portion 4 and the female connecting portion 5 for connecting the lawn protection materials at the time of laying are provided at point-symmetric positions with respect to the lawn protection material center point.

The height of the first connecting portion 2 is formed to be about half of the pressure receiving body 1, and the height of the second connecting portion 3 is formed lower than the first connecting portion 2. . The second connecting portion 3 is disposed at the center of a square having four pressure receiving bodies 1 as vertices, and the second connecting portion 3 connects the lawn protection material to the ground as shown by the imaginary line in FIG. It is used as a mounting part of a fixing tool 6 for fixing the fixing tool 6 to the base.

The first connecting portion 2 is formed in an arc shape curved to one side with respect to a straight line connecting the adjacent pressure receiving members 1, and two opposed pairs of a square having four pressure receiving members 1 as vertices Are curved in a direction approaching each other, and the second connecting portion 3 is provided at the apex thereof, and the other set of first connecting portions 2 are mutually connected. Curving away. Further, the bending direction of the first connecting portion 2 is set such that the first connecting portions 2 sandwiching the pressure receiving member 1 project in opposite directions, and four bending portions provided on one pressure receiving member 1 are provided. The first connecting portion 2 is curved in the same clockwise direction or counterclockwise direction with respect to the radiation centered on the pressure receiving body 1. That is, while the plurality of pressure receiving bodies 1 are arranged in a straight line in the vertical and horizontal directions, respectively, the first connecting portion 2 is arranged so as to draw a waveform, and the first connecting portion in the vertical direction is formed. Four square units vertically and horizontally adjacent to one square unit formed close to each other are formed such that the first connecting portions 2 in the horizontal direction are adjacent to each other. Therefore, the second connecting part 3 connecting the adjacent first connecting parts 2 also has a vertical direction,
The directions of the second connecting portions 3 which are formed alternately in the lateral direction and which are adjacent to each other are orthogonal to each other.

As described above, the pressure receiving bodies 1 are connected to each other by the first connecting portion 2 and the second connecting portion 3 and the second connecting portion 3 is used as the mounting portion of the fixture 6, so that the pressure receiving members 1 are vertically moved by the stepping pressure. The distance between the pressure receiving member 1 and the vertical force of the pressure receiving member 1 and the external force applied to the lawn protection material from each direction can be absorbed by the elasticity of the first connecting portion 2. No external force is applied directly to the turf, and the lawn protection material can be reliably fixed in a stable state, so that the fixture 6 can be prevented from floating. In addition, since the second connecting portions 3 are respectively provided at the center portions surrounded by the four pressure receiving bodies 1, an arbitrary position of the lawn protection material is fixed by the fixture 6 according to the condition of the ground. be able to. In addition, by adjusting the length of the second connecting portion 3 to the width of the fixing tool 6, the displacement can be prevented, the lawn protection material can be securely fixed, and the height is lower than that of the first connecting portion 2. Since the head of the tool 6 does not protrude from the upper surface of the lawn protection material, it is possible to obtain the effect of being safe and hard to come off.

In particular, since the first connecting portion 2 serving as the main connecting portion for connecting the pressure receiving member 1 is formed in the above-described curved shape, the amount of elastic deformation can be increased as compared with a linear shape. Therefore, it is possible to absorb molding distortion, self-expansion and contraction due to temperature change during use, and external force applied from each direction by the elastic deformation of the first connecting portion 2. be able to.

In the embodiment shown in FIG. 4, the first connecting portion 11 for connecting the adjacent pressure receiving members 1 is bent into a straight mountain shape. A pair of first connecting portions 11 of two opposing sides of the square are projected in a direction approaching each other, and a second connecting portion 12 is provided at an intersection thereof, and the second connecting portion 1
Through hole 1 for inserting a fixture such as a pin into the center of 2
3 is provided.

In the embodiment shown in FIG. 5, the adjacent pressure receiving members 1 are connected by a first linear connecting portion 21 and the first connecting portions 21 are connected by a relatively long second connecting portion 22. In addition, a through hole 23 serving as a mounting portion for a fixing tool is formed in the center of the second connecting portion 22.

In both of the above embodiments, the mounting portion of the fixture is formed at a position farthest from the pressure receiving member 1, so that
The same effects as described above, such as the prevention of floating of the fixture, can be obtained.

[0019]

As described above, according to the lawn protection material of the present invention, the lawn protection material can be securely fixed in a stable state, and in particular, the first connecting portion is formed in a curved shape, so that the lawn protection material is formed. It can flexibly respond to distortion, temperature changes, and external forces from various directions.

[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 plan view of a main part showing another example of a lawn protection material.

FIG. 5 is a plan view of a main part showing still another example of a lawn protection material.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Pressure receiving body, 2 ... 1st connection part, 3 ... 2nd connection part, 4 ... male connection part, 5 ... female connection part, 6 ... fixture, 11 ... 1st connection part, 12 ... 2nd connection part, Reference numeral 13: through hole, 21: first connecting portion, 22: second connecting portion, 23: through hole

Claims (4)

[Claims] 1. A synthetic resin lawn protection material formed by connecting a large number of pressure receiving members receiving a tread pressure at a connecting portion to form a lattice, and connecting the connecting portion to two adjacent pressure receiving members. A first connecting portion and the first pressure member located between the four pressure receiving bodies;
A lawn protection material formed by a second connecting portion connecting a pair of first connecting portions facing each other among the connecting portions. 2. The lawn protection material according to claim 1, wherein the second connecting portion is a mounting portion of a fixture for fixing the lawn protection material to the ground. 3. The first connecting portion has a central portion protruding in a direction of the second connecting portion.
Lawn protection material described. 4. The lawn protection material according to claim 3, wherein the second connecting portion is formed in a direction in which adjacent second connecting portions intersect at right angles.