JP2009045045A - Plant protective material - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a method for use in order to maintain the growth of lawn with a conventional lawn protective material. <P>SOLUTION: A plant protective material is composed of a lower frame and an upper frame laid on a base. In the plant protective material, the lower frame is composed of lower treading parts and lower through-hole parts and the lower treading parts stand up in a protruding state and are mutually connected. The lower through-hole parts are hole parts surrounded by the lower treading parts. The upper frame is composed of upper treading parts and upper through-hole parts. Furthermore, the upper through-hole parts are hole parts surrounded by the upper through-hole parts. Connecting parts mutually connecting the upper frame to the lower frame are composed so as to produce gaps between the upper frame and the lower frame during connection of the connecting parts. Mutually linkable linking parts are provided in the lower frame and at least a part of the upper through-hole parts are vertically passed through the lower through-hole parts when the upper frame is connected to the lower frame. At least a part of the upper treading parts are located at positions corresponding to the lower treading parts. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

The present invention belongs to a technique for protecting and growing plants such as lawns.

There are golf courses, playgrounds, parks, gardens, factory roadsides, and various site spaces as open spaces where grass and other plants have been nurtured. there were. Recently, a plant protection material comprising a stepping pressure portion and a through hole as shown in FIG. 4 for protecting a plant from the pressure of a person entering the lawn or a car (JP-A-2-145137, JP-A-4-75541). ) Etc. have been proposed and used.
In addition, in order to relieve human treading pressure when using these lawn protection panels, a flat upper frame is installed on the lawn protection panel, and the area of the contact area with the human foot is increased with the upper frame from the treading pressure part. A plant protection material that reduces reaction force is disclosed in Japanese Patent Laid-Open No. 5-56724.
There was no suggestion of how to use the lawn protection material to keep the lawn growing.

JP-A-2-145137 JP 4-75541 JP 5-56724

The present invention resides in the proposal of a technique for protecting and growing lawn using conventional lawn protection materials.

The first invention is a plant protection material comprising a lower frame and an upper frame laid on a base, wherein the lower frame is composed of a lower treading portion and a lower through hole, and the lower treading portion is convex. The lower through-hole part is a hole part surrounded by the lower treading part, the upper frame is composed of the upper treading part and the upper through-hole part, and the upper through-hole part is surrounded by the upper through-hole part. The connecting portion that connects the upper frame and the lower frame to each other is configured such that a gap is formed between the upper frame and the lower frame when the connection is made, and the lower frame is provided with a connecting portion that can be connected to each other When the upper frame is connected to the lower frame, at least a part of the upper through hole part penetrates the lower through hole part vertically, and at least a part of the upper step pressure part is located at a position corresponding to the lower step pressure part. It is a material. A gap was provided between the lower frame and the upper frame so that the plant could grow sufficiently.
The second invention is a plant protection material comprising a lower frame and an upper frame laid on a base, wherein the lower frame is composed of a lower treading portion and a lower through-hole portion, and the lower treading portion is convex. The lower through-hole part is a hole part surrounded by the lower treading part, the upper frame is composed of the upper treading part and the upper through-hole part, and the upper through-hole part is surrounded by the upper through-hole part. The connecting portion that connects the upper frame and the lower frame to each other is a connecting portion that is formed so that the distance between the upper frame and the lower frame is different at the time of connection, and can be connected to the lower frame When the connecting part is provided and the upper frame is connected to the lower frame, at least a part of the upper through hole part vertically penetrates the lower through hole part, and at least a part of the upper step pressure part corresponds to the lower step pressure part. Is a plant protection material. When the turf grew sufficiently, the position of the connecting part was changed to allow further growth so that the distance between the lower frame and the upper frame could be changed.

In the first invention, the distance between the connecting portion connecting the lower frame and the upper frame is increased, and a gap is provided between the lower frame and the upper frame. In the second aspect of the present invention, since the upper and lower connections of the lower frame and the upper frame are provided with different connecting portions so that the distance between them can be changed, when the plant grows more than a predetermined distance, the longer the connecting portion is. Instead, it can be further grown.

Hereinafter, the present invention will be described in detail with reference to the drawings.
FIG. 1 shows the plane and cross section of the upper frame, and FIG. 2 shows the plane and cross section of the lower frame.
The upper frame shown in FIG. 1 has a lattice shape, and its intersection is a stepping pressure portion. The inside of the lattice is a place where plants such as turf extend and rain water penetrates into the ground. A connecting joint for connecting to the lower frame is provided below the intersection. The connection joint is composed of a rod-shaped distance holding portion that hangs down from the intersection of the lattice and a connection tool provided at the tip thereof. The connection tool is formed in a cross-like plate shape in the figure.
Male and female connectors for connecting the upper frames are provided on the side surfaces where they are in contact with each other. You may abbreviate | omit this connection tool for the convenience of construction.

The lower frame shown in FIG. 2 has a projecting treading pressure part connected by a beam at the lower part thereof, and the space surrounded by the treading pressure part forms a water permeable part and becomes a place where plants such as turf are nurtured and filled with soil. It is a place where rainwater penetrates the ground.
A cross-shaped groove is provided at the top of the stepping pressure portion to engage with the connector of the upper frame.
The lower frame is provided with male and female couplings that can be coupled to each other on their side surfaces.

FIG. 3 is a conceptual cross-sectional view showing a plant protection material constituting the present invention.
In the present invention, an upper frame and a lower frame shown in FIGS. 1 and 2 are connected.
As shown in the figure, when the upper frame and the lower frame are connected, a gap is formed between them.

Vegetation soil such as lawn is filled and rolled up to the top of the lower frame. The lawn grows in the gap between the lower frame and the upper frame, and when it grows further, it extends on the treading part of the upper frame. The lawn that grows beyond the upper frame is damaged by stepping pressure and its growth is inhibited.
Since there is a gap between the lower and upper frames, the lawn grows well within the gap. Even if the growth point of the part that has grown beyond the upper frame is damaged, it will grow beyond the upper frame in order to grow sufficiently in the gap.

FIG. 4 is a conceptual diagram of the upper frame constituting the second invention. The lower frame is common to the first invention.
The upper frame shown in FIG. 4 has a lattice shape, and the intersection thereof becomes a stepping pressure portion. The inside of the lattice is a place where plants such as turf extend and rain water penetrates into the ground. The lower part of the intersection is the same as the upper frame of the first invention in that a connection joint for connecting to the lower frame is provided. In the figure, the connecting joints having different lengths are shown. The connector is formed in the same cross-like plate shape as in the first invention.
The long and short distance holding portions are alternately provided in parallel to the intersection of the upper frames.

FIG. 5a shows a state in which a distance holding unit having a short interval between the upper frame and the lower frame is used. FIG. 5 b shows a long state of the distance holding unit. When the lawn or the like is not fully grown, the joint with the short distance holding portion shown in FIG. 5a is used, and when the lawn is sufficiently stretched, the joint is switched to the joint with the long distance holding portion. In the present invention, since the joint positions are alternately arranged in a straight line, the connection between the upper frame and the lower frame is released, and the joint is switched to a joint having a long distance holding portion. In that case, the joint position is shifted horizontally by one line.

FIG. 6 shows another example in which the distance holding portions provided on the upper frame are different in length.
As shown in the figure, a joint having a long distance holding portion is provided below the upper frame, and a short joint is provided above. In the above example, the distance holding unit is replaced by shifting one line, but in this example, the distance holding unit is turned upside down.

It is serious damage to the lawn that the shoots are damaged by the treading pressure while the growth is not enough, but if the lawn grows sufficiently, even if some shoots are damaged by the stepping pressure, the damage is relatively light It will be a thing.

In any of the inventions, a cross-shaped groove for engaging with a connection tool of the upper frame is provided at the top of the stepping pressure portion of the lower frame. In addition, the shape of the connection part for connecting the upper frame and the lower frame is not limited to the cross plate shape, and existing connection means is used.
The lower frame is provided with male and female couplings that can be coupled to each other on their side surfaces.

The lower frame and the upper frame used in the present invention are not limited to those shown in the figure. For example, the treading part may be a quadrangular tube, a hexagonal tube, or a cylinder and arranged in a honeycomb shape. The water permeable part is the center of each cylinder. The edge of each cylinder constitutes a treading pressure part. A connection tool is provided at the intersection of each cylinder.

It is preferable that the water permeable portions of the upper frame and the lower frame are formed so that at least a part thereof penetrates vertically so that rainwater or the like is supplied to plants such as turf.
This lawn protective material can be easily molded by injection molding a thermoplastic resin. A resin such as polyolefin polypropylene or polyethylene can be used.

FIG. 3 is a conceptual diagram of an upper frame of a plant protection material constituting the first invention. It is a conceptual diagram of the lower frame of the plant protection material which comprises this 1st invention. It is a conceptual diagram of the plant protection material which comprises this 1st invention. FIG. 5 is a conceptual diagram of an upper frame of a plant protection material constituting the second invention. It is a conceptual diagram of the plant protection material which comprises this 2nd invention. It is a conceptual diagram of the other plant protection material which comprises this 2nd invention. It is a conceptual diagram of the conventional plant protection material.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Plant protection material 2 Upper frame 3 Lower frame 4 Upper frame treading pressure part 5 Upper frame permeation part 6 Lower frame treading pressure part 7 Lower frame permeation part 8 Connection part 9 Distance support part 10 Connecting tool 11 Connection part

Claims (2)

In the plant protection material consisting of a lower frame and an upper frame laid on the base, the lower frame is composed of a lower treading pressure part and a lower through hole part, the lower treading part rises in a convex shape, and is connected to each other, The lower through hole part is a hole surrounded by the lower treading part, the upper frame is composed of the upper treading part and the upper through hole part, and the upper through hole part is a hole part surrounded by the upper through hole part, The connecting portion that connects the upper frame and the lower frame to each other is configured such that a gap is formed between the upper frame and the lower frame when the connection is made, the lower frame is provided with a connecting portion that can be connected to each other, and the upper frame is A plant protection material in which at least a part of the upper through hole part vertically penetrates the lower through hole part when connected to the frame, and at least a part of the upper step pressure part is located at a position corresponding to the lower step pressure part. In the plant protection material consisting of a lower frame and an upper frame laid on the base, the lower frame is composed of a lower treading pressure part and a lower through hole part, the lower treading part rises in a convex shape, and is connected to each other, The lower through hole part is a hole surrounded by the lower treading part, the upper frame is composed of the upper treading part and the upper through hole part, and the upper through hole part is a hole part surrounded by the upper through hole part, The connection part that connects the upper frame and the lower frame to each other is a connection part that is formed so that the distance between the upper frame and the lower frame is different at the time of connection, the lower frame is provided with a connecting part that can be connected to each other, and the upper part A plant protection material in which at least a part of the upper through hole part vertically penetrates the lower through hole part when the frame is connected to the lower frame, and at least a part of the upper tread part is in a position corresponding to the lower tread part.

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