JP2008035856A - Plant protection material - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a structure for easily laying conventional lawn-protecting panes and a lawn-protecting material for feeding air to the lawn by the stepping pressure of persons walking on it. <P>SOLUTION: This plant protection material consisting of a lower frame laid on a base pane and an upper frame is provided with that the lower frame is constituted by lower part step-pressing parts and lower part-penetrating hole parts, the lower part step-pressing parts stand as projecting and are connected with each other, the lower part-penetrating hole parts are parts having holes, the upper frame is made from an elastic material and consists of upper part step-pressing parts and upper part-penetrating hole part, the upper part step-pressing parts are connected with each other and having a cylindrical form having a closed upper end and feeding the air by contracting with the stepping pressure, also the upper part step-pressing parts and lower part step-pressing parts are positioned so as to correspond the upper part step-pressing parts to the lower part step-pressing parts with each other on loading the upper part frame on the lower part frame, the upper part-penetrating hole parts are the hole parts, a connecting part is installed for connecting the upper part frame with lower part frame with each other, joining parts capable of joining them together with each other are installed at the lower part frame, the upper part frames are independent with each other and at least a part of the upper part-penetrating hole parts penetrates vertically through the lower part-penetrating hole parts. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

The present invention belongs to a technique for protecting 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 composed of a treading portion and a through hole as shown in FIG. 12a for protecting a plant from the treading pressure of a person entering a 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 for reducing the reaction force as shown in FIG. 12b is disclosed in JP-A-5-56724.
In the construction of the above lawn protective material over a wide range, when laying the upper frame after laying the lower frame, non-uniformity of the roadbed surface remains, so the connecting part provided on the upper frame when laying the upper frame Then it may not be able to absorb.
Lawn protection requires protection for normal lawn protection, such as fertilization, sunlight, wind passages, and watering, as well as protection by lawn protection materials, and supplies air to the current lawn protection materials such as wind passages. There is no suggestion.

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

The present invention provides a lawn protection material that can improve the workability of conventional lawn protection materials, reduce the treading pressure, and supply air to the lawn by the treading pressure of a person walking on the lawn.

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 or provided in the lower treading part, and the upper frame is composed of the upper treading part and the upper through-hole part. Is a hole surrounded by the upper through-hole part or provided in the upper treading pressure part. The upper frame and the lower frame are provided with connecting parts that are connected to each other, and the lower frame is provided with a connecting part that can be connected to each other. The upper frame is not provided with a connecting portion, and when 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 stepping pressure part is It is a plant protection material in a position corresponding to the lower treading part. In order to lay the upper and lower frame without distortion, a connecting portion between the lower frames and a connecting portion between the upper and lower frames are provided, but a connecting portion between the upper frames is not provided.
According to the second aspect of the present invention, in the plant protection material according to the first aspect of the present invention, when the support part whose hardness is changed from the upper treading part hangs down and the upper frame and the lower frame are connected, the soft support part is The plant support material is provided so as to be in direct contact with the lower treading pressure portion and to be separated from the hard support portion. In order to reduce the reaction force from human treading pressure, the treading pressure is received by the soft support part, and the treading pressure by a large car etc. is received by the hard support part.
The third aspect of the present invention is the plant protection material according to the first aspect of the present invention, wherein the upper treading pressure portion is a cylindrical shape whose upper end is closed and is supplied with air by contracting with the treading pressure.
This 4th invention is a plant protection material which consists of an upper frame of the plant protection material of this invention 3.

The present invention (1) allows the upper and lower connections of the lower frame and the upper frame and allows the lower frames to be connected to each other, and the upper frames are not connected to each other. It will be easy. Moreover, since it is not necessary to consider the directionality of an upper frame when laying an upper frame by not providing a connection part in an upper frame, workability | operativity improves.
(2) When the support part whose hardness has changed from the upper stepping pressure part hangs down and the upper frame and the lower frame are connected, the soft support part is directly in contact with the lower stepping pressure part, and the hard support part is provided with a gap. For this reason, human treading pressure is received by a soft support part to reduce reaction force due to treading pressure, and the treading pressure of a car or the like is received by a hard support part.
(3) Since the treading pressure portion of the upper frame is formed in a bag shape closed at the upper end, the treading pressure contracts and the internal air is released toward the lower frame. Therefore, it gives favorable conditions for the growth of turf.
(4) The reaction force against the pedal pressure can be further reduced by using only the upper frame in a place where the human pedal pressure is the main pedal pressure.

Hereinafter, the present invention will be described in detail with reference to the drawings.
FIG. 1 is a conceptual diagram showing a first example of a plant protection material constituting the first invention.
1a is a plan view and a cross section of the upper frame, FIG. 1b is a plan view and a cross section of the lower frame, and FIG. 1c is a cross sectional view showing a state in which the upper frame and the lower frame are connected.
In the upper frame shown in FIG. 1a, the cylindrical portion connected by the flat beam portion forms the upper treading pressure portion, and the region surrounded by the upper treading pressure portion and the upper treading pressure portion and the beam portion forms the upper through hole portion. To do. A small hole is provided in the bottom of the tube so that rainwater does not collect. In addition, a connecting portion that engages the lower portion of the upper stepping portion of the upper frame and the top portion of the lower stepping portion of the lower frame is provided. Using the connecting portion, the upper frame and the lower frame can be connected to each other as shown in FIG.
The lower frame shown in FIG. 1b connects the treading pressure portion rising in a cylindrical shape or a rod shape with a beam portion, and a hole region surrounded by the treading pressure portion and the beam portion forms a through hole portion. As a result, turf grows up.
A part of the lower treading portion, in the figure, a connecting portion for connecting to the upper treading portion of the upper frame is provided in every other row. The position of the connection part and the connection method can also be appropriately selected from existing connection methods.

A connecting portion for connecting the lower frames to each other is provided at the bottom of the side surface of the lower frame. The connecting part shown in the figure is a flat plate that protrudes from the bottom of the lower treading part, with a male joint provided at the tip so that the tongue is directed from the flat plate end to the upper side of the side, and a male joint provided at the lower side of the side It consists of a female joint that is a hole. When the male joint is inserted into the hole, the tongue is pushed and flattened so that it returns to its original state in the space inside the female joint. The position of the connecting portion and the connecting method can also be appropriately selected from existing connecting methods.

FIG. 2 is a conceptual diagram showing a second example of the plant protection material constituting the first invention.
2a is a plan view and a cross section of the upper frame, FIG. 2b is a plan view and a cross section of the lower frame, and FIG. 2c is a cross sectional view showing a state in which the upper frame and the lower frame are connected.
The upper frame shown in FIG. 1a has a flat lattice shape, and the intersection of the lattice forms an upper treading portion, and the inside of the lattice forms an upper through hole portion. In addition, the upper stepping pressure portion of the upper frame is provided with a connection portion that engages with the top of the lower stepping pressure portion of the lower frame. Using the connecting portion, the upper frame and the lower frame can be connected to each other as shown in FIG. 2c.
The lower frame shown in FIG. 2b connects the treading pressure portion rising in a cylindrical shape or a rod shape with a beam portion, and the hole region surrounded by the treading pressure portion and the beam portion forms a through hole portion, and at the same time rainwater penetrates, As a result, turf grows up.

A connecting portion for connecting the lower frames to each other is provided at the bottom of the side surface of the lower frame. The connecting portion shown in the figure is composed of a male joint provided on two adjacent sides and a female joint provided on the other adjacent side. The position of the connecting portion and the connecting method can be appropriately selected from the existing connecting methods as in the first example.

FIG. 3 is a conceptual diagram showing a third example of the plant protection material constituting the first invention.
FIG. 3a shows the plane and cross section of the upper frame, and FIG. 3b shows the plane and cross section of the lower frame. FIG. 3c is a cross-sectional view showing a state in which the lower frame and the upper frame are connected.
As shown in FIG. 3a, the upper frame has a cylindrical treading pressure portion connected by a beam portion, the side wall of the cylindrical portion becomes the upper treading pressure portion, and the inside of the cylinder becomes the upper water-permeable portion. In order to reduce the reaction force from the treading pressure, the upper part of the tube part may be closed leaving a hole for water permeability. The lower part of the upper pedaling part can be inserted into the cylinder of the lower pedaling part, and a barb for connecting the lower frame and the upper frame is provided. In addition, the connection part which connects upper frames is not provided.
The lower frame is a square partition frame, and the partition wall of each partition forms a lower treading portion, and the interior of the partition forms a lower water permeable portion. A joint for connecting the lower frames to each other is provided at the bottom of the side surface of the lower frame. The connecting portion shown in the figure is the same as the connecting portion described above, but is not limited to this connecting method, and an existing connecting method can be selected.

In the plant protection material shown in FIG. 1 and FIG. 3, the upper treading pressure part and the lower treading pressure part and the upper water permeation part and the lower water permeation part correspond one-to-one, but the plant protection material shown in FIG. The treading portion does not correspond one-on-one. Since a part of the upper pedaling portion is supported by the soil, it may not be present on the lower pedaling portion. At this time, the bottom of the upper treading part that does not exist on the lower treading part is high, that is, the thickness of the upper treading part is reduced from the upper treading part that exists on the lower treading part so that the distance from the soil surface is maintained. You can also. In this way, when constructing using this lawn protective material, the lower frame is laid, the soil is filled into the water permeable part in the lower frame, and the upper frame is connected after rolling, but under the upper treading part Since there is a gap, the rolling pressure can be omitted or simplified.

The upper frame of the plant protection material shown in FIGS. 1 to 3 can be formed of an elastic material such as rubber or elastomer. By changing the material to an elastic body, the reaction force applied to the person's feet from the upper treading part is reduced, so it has an excellent effect in protecting lawns such as schoolyards where children exercise.

FIG. 4 is a conceptual diagram of the treading part of the plant protection material constituting the second invention.
4A is a plan view and a cross section of the upper pedaling portion, FIG. 4B is a plan view and a cross section of the lower pedaling portion, and FIG. 4C is a sectional view showing a state where the upper pedaling portion is connected to the lower pedaling portion. As in the first aspect of the invention, the upper frame is formed by connecting the upper treading portion with the beam portion, and the lower frame is formed by connecting the lower treading portion with the beam portion. In addition, it is the same as that of the above, such as the connection of an upper frame and a lower frame, the connection of lower frames, the absence of the connection part between upper frames.
As shown in the drawing, the upper stepping pressure portion is cylindrical, and a cross-shaped hard support portion and soft support portion are provided inside the cylindrical portion. In the figure, the soft support portion is provided on the side surface of the hard support portion, but may be provided independently. The soft support portion and the hard support portion are made of, for example, a homogeneous resin and can be realized by changing the thickness thereof.
The hard support portion is adapted to fit into a groove provided at the top of the lower stepping pressure portion. The soft support portion is provided so as to be in direct contact with the top portion of the lower stepping pressure portion. Further, a connection portion that connects the upper pedaling portion and the lower pedaling portion is provided in some upper pedaling portions.
The lower treading pressure portion is a cone-shaped cylindrical portion, and a portion of the cylindrical portion is provided with a groove for fitting a hard support portion on the top thereof, which is a cross-shaped groove in the drawing. Moreover, the other top part is a female joint which fits the joint part provided in the upper stepping pressure part.
When a person's treading pressure is applied, the soft support part of the upper treading pressure part bends so that the reaction force on the person's foot can be reduced. In addition, when a heavy object such as a car passes, the load can be received by a hard support portion.

Including the first and second inventions, the beam portion connecting the upper treading pressure portion can be determined at a certain distance or more from the top of the upper treading pressure portion.
When exercising with spikes or the like on the lawn protective material, the distance between the top of the upper treading portion and the top of the beam can be adjusted so that the blade of the spike does not hit the beam.

FIG. 5 is a conceptual diagram of the plant protection material according to the third invention.
FIG. 5a shows a plane and a cross section of the upper frame, FIG. 5b shows a plane and a cross section of the lower frame, and FIG. 5c is a cross sectional view showing a state in which the upper frame and the lower frame are connected. The basic relationship between the upper frame and the lower frame is the same as the above invention. The upper frame is an elastic body, and the upper stepping pressure portion is a bag-like or cylindrical bag-like stepping pressure portion whose upper end is closed. The bag-like treading pressure part contracts due to the treading pressure, and each time the air in the bag is pushed out, air is supplied to the plant such as turf, and the air is exchanged. In addition, FIG. 6 is a conceptual diagram which shows the state which connected this plant protection material.

FIG. 7 is a conceptual diagram showing a second example of the plant protection material according to the third invention.
As in the first invention, an example in which a square partition frame is used as a lower frame, FIG. 7a is a plan view and a sectional view of the upper frame, and FIG. 7b is a plan view and a sectional view of the lower frame. is there. FIG. 7c is a cross-sectional view showing a state in which the upper frame is connected to the lower frame.
The upper frame has a shape in which a cylindrical bag-like stepping pressure portion with a lower upper end closed compared to the lower frame is connected by a beam portion, and the upper water-permeable portion becomes a region surrounded by the bag-like pressure step portion. .
The lower frame has a shape in which square tubes are connected, and the frame of each square tube corresponds to the lower treading portion, and the inside of the tube corresponds to the lower water permeable portion.

The connection part of the said plant protection material consists of the female joint provided in the male joint provided in the upper step pressure part lower end of the upper frame, and the lower step pressure part top. The upper frame is not lowered by the beam portion of the upper frame, and is not moved upward because the joint portion engages with each other.
In places where spikes are used, it is the same as the above-mentioned plant protection material that the beam portion connecting the upper treading pressure portion is provided at a height that does not reach the spike blade.
The connecting portion shown in FIG. 7 is a male joint composed of a stopper provided at the tip of a flat plate protruding from the bottom of the lower frame side surface, and a tongue piece protruding downward in a tongue shape from the side of the lower frame provided behind it, It consists of a female joint made of a flat plate provided with a hole provided on the corresponding side face of the lower frame and a hole for engaging the stopper present in the hole. For the connecting part and the connecting part, not only this means but also an existing method is used.
FIG. 8 is a conceptual diagram showing a state in which the plant protective material is connected.

FIG. 9 is a conceptual diagram showing a third example of the present plant protection material according to the third invention. Since the relationship between the upper frame and the lower frame is the same, only the upper frame is shown. 9a shows the upper frame, FIG. 9b shows the intermediate frame, and FIG. 9c is a cross-sectional view of the state in which the upper frame and the intermediate frame are connected. As shown in the figure, the upper stepping pressure portion is composed of an upper frame and an intermediate frame, and the intermediate frame is provided with a protruding portion at the intersection of the lattice so that it can be inserted into the stepping pressure portion of the upper frame. As a result, the projecting portion is provided inside the stepping pressure portion while maintaining a space around and above the pressing portion. By the stepping pressure, air flows along the side wall of the protruding portion and flows downward from between the lattices of the intermediate frame.
Since the protruding portion is inside, even if the stepping pressure portion is pushed downward by the stepping pressure, the protruding portion is not obstructed by the internal protruding portion and does not fall any further. If the distance between the position of the beam part connecting the treading part and the position where the treading part falls is longer than the length of the blade, such as a spike, an accident caused by an unexpected fall, etc., due to the spike being caught in the beam part of the upper treading part Accidents where the upper and lower frames of the plant protection material are separated can be prevented.
FIG. 10 shows the integrated upper frame and intermediate frame.
Further, without using the intermediate frame, the protrusion described in the third invention is provided at the top of the stepping pressure portion of the lower frame used in the first to second inventions so that it can be inserted into the upper stepping pressure portion. Can also be realized.

In the fourth invention, the upper frame described in the third invention is used as it is as a plant protection material. With plant protection materials that target human treading pressure, it is possible to sufficiently support treading pressure only with the upper frame, and the reaction force against treading pressure is also reduced. When the upper frame is used alone as a plant protection material, it is preferable to provide a connecting means for connecting the upper frames to each other.

As for the material of the plant protection material, the lower frame is made of a concrete product or an injection-moldable polyolefin, and the upper frame is made of an injection-moldable polyolefin to reduce human treading pressure.
In the plant protection material shown in the third aspect of the present invention, the material of the upper frame is preferably made of an elastomer containing rubber or the like in order to supply air by stepping pressure.

As shown in FIG. 11, the plant protection material is used by connecting and laying a lower frame on a roadbed, filling soil into the lower water-permeable portion, rolling, loosening the lawn and connecting the upper frame. Waiting for the growth of turf to be in a state, or after rolling, connecting the upper frame, mixing the soil and turf seeds up to the top of the upper frame and waiting for the growth of the turf, etc.

It is a conceptual diagram of the 1st example of the plant protection material which comprises this 1st invention. It is a conceptual diagram of the 2nd example of the plant protection material which comprises this 1st invention. It is a conceptual diagram of the 3rd example of the plant protection material which comprises this 1st invention. It is a conceptual diagram of the plant protection material which is this 2nd invention. It is a conceptual diagram of the plant protection material which is this 3rd invention. It is a conceptual diagram which shows the state which connected the plant protection material of this 3rd invention. It is a conceptual diagram which shows the 2nd example of the plant protection material which is this 3rd invention. It is a conceptual diagram which shows the state which connected the 2nd example of the plant protection material which is the said 3rd invention. It is a conceptual diagram which shows the 3rd example of this plant protection material which is 3rd invention. It is a conceptual diagram which shows the 4th example of this plant protection material which is 3rd invention. It is a conceptual diagram which shows the state which the grass grew using this lawn protective material. It is an example of the conventional plant protection material.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Plant protection material 2 Upper frame 3 Lower frame 4 Intermediate frame 5 Upper treading part 6 Upper through-hole part 7 Lower treading part 8 Lower water-permeable part 9 Beam part 10 Connection part 11 Connection part 12 Soft support part 13 Hard support part 14 Bag shape Step pressure part 15 Projection

Claims (4)

In a plant protection material consisting of a lower frame and an upper frame laid on a base, the lower frame is composed of a lower treading part and a lower through hole part, and the lower treading part rises in a convex shape and is connected to each other. The through hole portion is a hole portion surrounded by or provided in the lower tread pressure portion, and the upper frame is composed of the upper tread pressure portion and the upper perforation portion, and the upper perforation portion is surrounded by the upper perforation portion. The upper frame and the lower frame are connected to each other, the lower frame is connected to each other, the lower frame is connected to each other, and the upper frame is connected to the upper frame. When 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. Plant protection material in The plant protection material according to claim 1, wherein when the support portion having a changed hardness is suspended from the upper stepping pressure portion and the upper frame and the lower frame are connected, the soft support portion is directly in contact with the lower stepping pressure portion and has a hard support. The part is plant protection material provided so as to separate the gap. The plant protection material according to claim 1, wherein the upper stepping pressure portion is a cylindrical shape whose upper end is closed and is supplied with air by being contracted by the stepping pressure. A plant protection material comprising the upper frame of the plant protection material according to claim 3.

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