JP2017099337A - Weed control plante - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a weed control plate that enables laying operation to be performed safely and efficiently, and can exhibit an intended function sufficiently.SOLUTION: A weed control plate 1 includes a rectangular dish-shaped weed control plate body 2, protrusions 3 projected downward and provided in a bottom plate 2a of the weed control plate body 2 and each forming a bottomed cylindrical shape of an upper end opening, and permeable holes bored in bottom surfaces of the protrusions 3 and having a size of a degree where weeds may not invade. The weed control plate 1 further includes first coupling means 5 provided in adjacent two first outside surfaces 7, 8 among four outside surfaces 7 to 10 of the weed control plate body 2, respectively, and second coupling means 6 provided in adjacent other two second outside surfaces 9, 10 among the four outside surfaces 7 to 10, respectively. Then, the first coupling means 5 and the second coupling means 6 are coupled to each other, and whereby multiple weed control plates 1 can extensively be coupled without gaps.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a weedproof plate used for preventing weed germination, growth, overgrowth, etc. in a predetermined area of an open field such as a garden or a park.

Conventionally, in order to prevent germination, growth, and overgrowth of such weeds, a sheet-like member (weedproof sheet) has been used (see, for example, Patent Document 1). The herbicidal sheet disclosed in Patent Document 1 has a water permeability and a sheet material having a tentacle standing on its surface, and a ballast fixedly provided at the tip of the tentacle, It is characterized by having. And according to the structure of the weedproof sheet disclosed by patent document 1, the weedproof sheet which can make a separate fixing operation unnecessary while maintaining water permeability can be provided.
However, with the sheet-like member disclosed in Patent Document 1 or the like, it is difficult to lay it in an area where trees or the like are already planted.

  Therefore, recently, in order to cope with such a case, a rectangular plate piece member (weed growth suppression plate) has been proposed (see, for example, Patent Document 2). The weed growth suppression plate disclosed in Patent Document 2 is a plate that is several times the size of a postcard that aims to block sunlight by spreading on the ground surface and suppress the growth of weeds. In order to prevent the installation position from changing due to external factors when installed on the ground surface, a pile for embedding in the ground is attached to the back surface of the plate. And according to the structure of the weed growth suppression plate disclosed by patent document 2, except the area | region where the tree etc. are already planted, it lays so that the ground surface may be covered, overlapping the peripheral part of an adjacent plate. be able to. Further, in this case, a gap is formed in the peripheral portion of the overlapped plates, and rainwater or the like can be permeated therefrom, so that growth of trees and the like is not hindered.

JP 2003-189779 A JP 2011-160690 A

  However, in the weed growth suppression plate (weedproof plate) disclosed in Patent Document 2, a pile for embedding in the ground is attached to the back surface of the plate. There is a risk of danger. In addition, there is a problem that workability is poor because it is necessary to embed piles in the ground while properly overlapping the peripheral portions of adjacent plates. Furthermore, in the weedproof plate disclosed in Patent Document 2, there is a gap in the peripheral portion of the stacked plates, so that weeds may come out on the weedproof plate from the gap, and the function as a weedproof plate Is not fully utilized.

  The present invention has been made to solve the above-described problems in the prior art, and is a weedproof plate that can be laid in an area where trees or the like have already been planted. An object of the present invention is to provide a weedproof plate that can be efficiently performed and can sufficiently perform its intended function.

In order to achieve the above object, the structure of the weedproof plate according to the present invention is as follows.
(1) A rectangular dish-shaped weed plate main body, a convex portion having a bottomed cylindrical shape with a top opening provided projecting downward on the bottom plate of the weedproof plate main body, and a bottom surface of the convex portion. A water permeable hole having a size that does not allow weeds to enter, a first connecting means provided on each of two adjacent first outer surfaces of the four outer surfaces of the weed prevention plate body, and the four A second connecting means provided on each of the other two outer side faces adjacent to each other of the outer side surfaces, and the first connecting means and the second connecting means are connected to each other, thereby It is characterized in that it can be connected without any gap.

According to the configuration of the above-described (1) of the weedproof plate of the present invention, a rectangular dish-shaped weed plate main body and a bottomed cylindrical shape with an upper end opening provided on the bottom plate of the weedproof plate main body are provided. Since it has the convex part made and the water-permeable hole drilled in the bottom face of the convex part, it can be installed so that it can be pressed from above onto the open field where weeds grow. Further, every time it rains, rainwater once accumulates in the convex portion and then penetrates into the open ground through the water-permeable holes. And thereby, the said grass-proof plate adapts to an open field. As a result, since the installation position does not change due to external factors, it is not necessary to attach a pile as in the case of the weed growth suppression plate (weedproof plate) disclosed in Patent Document 2. Further, the plurality of grass protection plates can be laid without a gap by a simple operation of simply connecting the first connecting means and the second connecting means. Therefore, according to the configuration of the above (1) of the weedproof plate of the present invention, it is possible to perform the laying work of the weedproof plate safely and efficiently.
In addition, the weed control plates are connected vertically and horizontally, and the water-permeable holes drilled in the bottom of the convex part are so large that weeds do not enter, so that weeds come out on the weed control plate. Can be prevented. Furthermore, since the sunlight is blocked by the weed prevention plates 1 connected without gaps, germination, growth, overgrowth, etc. of new weeds can be prevented. Therefore, according to the configuration of the above (1) of the weedproof plate of the present invention, it is possible to sufficiently exhibit the intended function of the weedproof plate.
Moreover, since the weedproof plate main body is formed in the rectangular dish shape, putting gravel or stone in it can improve the appearance and improve the weedproof effect. In addition, the gravel and stone can be kept clean as compared with the case where the gravel and stone are laid directly on the open ground. That is, for example, it is possible to prevent white gravel and stones from being mixed with soil and becoming brown.
Moreover, it is possible to construct | lay in the area | region where trees etc. are already planted by removing a grass prevention plate partially.

  In the constitution (1) of the weedproof plate of the present invention, the following constitutions (2) to (7) are preferable.

  (2) The convex portions are provided at at least four corners of the bottom plate of the grass protection plate body.

  According to the preferable structure of said (2), a grass prevention plate becomes easy to adapt to an open field equally.

  (3) The water-permeable hole is divided into four parts by being divided into a substantially cross shape.

  According to the preferred configuration of (3) above, it is possible to completely prevent weeds from entering the grass protection plate main body from the outdoors when the grass protection plate is laid on the outdoors.

  (4) The first connecting means and the second connecting means can be engaged and disengaged in the vertical direction.

  According to the preferable configuration of the above (4), it is possible to remove only the arbitrary weed prevention plate even after laying in the open ground while connecting the plurality of weed prevention plates in the vertical and horizontal directions. And since a flower and a tree can be planted in the arbitrary area | regions which removed the weed prevention plate, it becomes possible to provide an easy-to-use weed prevention plate.

  (5) In the configuration of (4), each of the first and second connecting means includes a pair of female connecting portions and male connecting portions that are provided apart from each other.

  According to the preferable structure of said (5), it becomes possible to connect grass prevention plates by simple operation which only inserts a male connection part in a female connection part.

  (6) The bottom plate of the grass protection plate main body is configured so that no gap is generated between the grass protection plates at the lower end edges of the two adjacent first outer side surfaces when the grass protection plates are connected vertically and horizontally. A flat L-shaped gap generation preventing plate is provided.

  According to the preferable configuration of (6) above, it is possible to connect a plurality of grass prevention plates vertically and horizontally without any gaps.

(7) In the vicinity of the two adjacent first outer surfaces, the engaging claws are erected integrally with the first outer surface in an outwardly directed state,
At upper edges of the other two adjacent second outer surfaces, claw locking step portions that are locked by the claw portions of the locking claw are formed, respectively.

  According to the preferable structure of said (7), the connection state of a grass prevention plate can be hold | maintained firmly. As a result, it is possible to prevent the connected grass prevention plates from being easily detached.

  According to the present invention, it is a weedproof plate that can be laid in an area where trees or the like are already planted, and the laying work can be performed safely and efficiently, and the intended function is sufficient. It is possible to provide a herbicidal plate that can be exhibited.

FIG. 1 is a plan view (top view) showing a configuration of a weedproof plate in one embodiment of the present invention. FIG. 2 is a bottom view (bottom view) showing the configuration of the weedproof plate in one embodiment of the present invention. FIG. 3 is a perspective view of the grass prevention plate according to the embodiment of the present invention as viewed obliquely from above. FIG. 4 is a perspective view of the grass protection plate according to the embodiment of the present invention turned upside down (the bottom surface of the grass protection plate) viewed obliquely from above. 5 is a cross-sectional view taken along line VV in FIG. FIG. 6 is a plan view (top view) showing a vertical connection state of the weedproof plates in one embodiment of the present invention. FIG. 7 is an enlarged partial plan view (top view) showing a connecting portion in the vertical direction of the weedproof plate in one embodiment of the present invention. FIG. 8 is a perspective view showing a method of connecting the weedproof plates in one embodiment of the present invention. FIG. 9 is a vertical cross-sectional view seen from the direction of arrow A in FIG. FIG. 10 is a plan view (top view) showing a state in which the weedproof plates according to one embodiment of the present invention are connected vertically and horizontally. FIG. 11 is a plan view (top view) showing another state (a state in which only one sheet is removed) in which the weedproof plates are connected vertically and horizontally in an embodiment of the present invention.

  Hereinafter, the present invention will be described more specifically with reference to preferred embodiments. However, the following embodiments are merely examples embodying the present invention, and the present invention is not limited thereto.

[Composition of grass protection plate]
First, the structure of the weed prevention plate in one embodiment of the present invention will be described with reference to FIGS.

  FIG. 1 is a plan view (top view) showing the configuration of the weed prevention plate according to one embodiment of the present invention, FIG. 2 is a bottom view (bottom view) showing the configuration of the weed prevention plate, and FIG. 4 is a perspective view as seen from diagonally above, FIG. 4 is a perspective view when the grass-proof plate is turned upside down (bottom surface of the grass-proof plate) as seen from diagonally above, and FIG. 5 is a cross-sectional view taken along line VV in FIG. FIG. 6 and FIG. 6 are plan views (top views) showing the connection state in the vertical direction of the grass protection plate, and FIG. 7 is an enlarged partial plan view (top view) showing the connection portion in the vertical direction of the grass protection plate.

As shown in FIGS. 1 to 5, the weed control plate 1 of the present embodiment includes a rectangular dish-shaped weed plate main body 2 and an upper end opening provided on the bottom plate 2 a of the weed control plate main body 2 so as to protrude downward. The bottom of the convex part 3 and the water-permeable hole of the magnitude | size which are the magnitude | size which does not penetrate | invade weeds were provided in the bottom face of the convex part 3.
The plan view size of the weed prevention plate 1 is about 140 mm × about 140 mm, and the height of the weed prevention plate body 2 is about 10 mm. The material of the weed prevention plate 1 is plastic.
The convex portion 3 has an outer size of about 20 mm × about 20 mm × about 10 mm (height), and is provided at the center and four corners of the bottom plate 2 a of the weedproof plate body 2. Four circular water-permeable holes 3a having a diameter of about 2 mm are formed in the vicinity of the center of each side on the bottom surface of the convex portion 3 provided at the center of the bottom plate 2a of the weed prevention plate body 2. Further, one circular water-permeable hole 3b having a diameter of about 6 mm is formed in the center of the bottom surface of the convex portion 3 provided at the four corners of the bottom plate 2a of the grass prevention plate main body 2. In addition, the water-permeable hole 3b is divided into four substantially in a cross shape as will be described later.

  As shown in FIG. 1 to FIG. 4, FIG. 6 and FIG. 7, the weedproof plate 1 of the present embodiment includes two adjacent first outer surfaces of the four outer surfaces 7 to 10 of the weedproof plate body 2. A first connecting means 5 provided on each of the side surfaces 7 and 8, and a second connecting means 6 provided on each of the other two second outer surfaces 9 and 10 adjacent to each other among the four outer surfaces 7 to 10; , Is further provided. And the 1st connection means 5 and the 2nd connection means 6 mutually connect, The several grass prevention plate 1 can be connected now without a gap | interval vertically and horizontally (refer FIG. 10, FIG. 11). 6 and 7 show only the state in which the two grass protection plates 1 are connected in the vertical direction, but the state in which the two grass protection plates 1 are connected in the horizontal direction is substantially the same. is there.

According to the configuration of the grass protection plate 1 of the present embodiment described above, the bottom plate of the rectangular dish-shaped grass protection plate body 2 and the upper end opening provided on the bottom plate 2a of the grass protection plate body 2 is provided downward. Since it has the convex part 3 which makes | forms a cylindrical shape, and the water-permeable holes 3a and 3b drilled in the bottom face of the convex part 3, it installs so that it may hold down on the open field where weeds grow. Can do. Moreover, every time it rains, after rainwater once accumulates in the convex part 3, it penetrates into the open ground through the water-permeable holes 3a and 3b. And thereby, the grass prevention plate 1 adapts to an open field. As a result, since the installation position does not change due to external factors, it is not necessary to attach a pile as in the case of the weed growth suppression plate (weedproof plate) disclosed in Patent Document 2. Further, the plurality of grass protection plates 1 can be laid without a gap by a simple operation of simply connecting the first connecting means 5 and the second connecting means 6 to each other. Therefore, according to the structure of the weed prevention plate 1 of this Embodiment, it becomes possible to perform the installation work of a weed prevention plate safely and efficiently.
Further, the weed control plate 1 is connected vertically and horizontally without gaps, and the water-permeable holes 3a and 3b drilled on the bottom surface of the convex portion 3 are of a size that does not allow weeds to enter. Can be prevented from coming out. Furthermore, since the sunlight is blocked by the weed prevention plates 1 connected without gaps, germination, growth, overgrowth, etc. of new weeds can be prevented. According to the structure of the weed prevention plate 1 of this Embodiment, it becomes possible to fully exhibit the intended function of a weed prevention plate.
Further, since the convex portions 3 are provided at at least four corners of the bottom plate 2a of the weedproof plate body 2, the weedproof plate 1 can be easily adapted to the open ground.

As shown in FIG. 1, FIG. 3, and FIG. 5, the inside of the weedproof plate main body 2 is reinforced in the form of a diagonal lattice by standing up reinforcing plates 4 on diagonal lines of the bottom plate 2a and lines parallel thereto. . Here, the reinforcing plates 4 and 4 in a state of intersecting with a cross enter the inside of the convex portion 3. And thereby, the water-permeable hole 3b of about 6 mm in diameter drilled in the center of the bottom face of the convex part 3 provided in the four corners of the bottom plate 2a of the weed prevention plate body 2 is divided into four substantially in a cross shape. (See FIGS. 2 and 4).
According to the configuration in which the water permeable holes 3b are divided into four substantially in a cross shape, weeds can be completely prevented from entering the weed control plate body 2 from the open ground when the grass control plate 1 is laid on the open ground. It becomes possible to prevent.
In addition, as shown in FIGS. 1-4, the diameter of the bottom plate 2a in the triangular enclosure by the reinforcing plate 4 formed near the center of each side inside the weedproof plate body 2 is about 2 mm. A circular water-permeable hole 3c is formed. That is, the bottom plate 2 a of the weed prevention plate body 2 is in a state where one water permeable hole is formed in each enclosure by the reinforcing plate 4. Thus, it is possible to prevent rainwater or the like from remaining in the grass protection plate body 2 when the grass protection plate 1 is laid on the open ground.

As shown in FIGS. 1-4, the 1st connection means 5 and the 2nd connection means 6 can be engaged / disengaged to an up-down direction (refer FIG. 8).
According to such a configuration, it is possible to remove only the arbitrary weed prevention plate 1 even after laying in the open ground while connecting the plurality of weed prevention plates 1 in the vertical and horizontal directions. And since a flower and a tree can be planted in the arbitrary area | regions which removed the weed prevention plate 1, it becomes possible to provide an easy-to-use weed prevention plate.
More specifically, the 1st connection means 5 provided in the 1st outer side surface 7 of the weed prevention plate main body 2 consists of a pair of female connection part 5a and male connection part 5b which were spaced apart by right and left by planar view. Yes. Moreover, the 1st connection means 5 provided in the 1st outer surface 8 of the weed prevention plate main body 2 consists of a pair of female connection part 5a and the male connection part 5b which were spaced apart up and down by planar view. Moreover, the 2nd connection means 6 provided in the 2nd outer side surface 9 of the weed prevention plate main body 2 consists of a pair of male connection part 6a and female connection part 6b which were spaced apart right and left by planar view. Moreover, the 2nd connection means 6 provided in the 2nd outer surface 10 of the weed prevention plate main body 2 consists of a pair of male connection part 6a and female connection part 6b which were spaced apart up and down by planar view.
According to such a configuration, it is possible to connect the weed prevention plates 1 to each other with a simple operation by simply inserting the male connecting portion 6a into the female connecting portion 5a and the male connecting portion 5b into the female connecting portion 6b. Become.

As shown in FIGS. 1 to 7, a gap is generated between the grass protection plates 1 and 1 when the grass protection plates 1 are connected vertically and horizontally at the lower edges of the two adjacent first outer surfaces 7 and 8. An L-shaped gap generation preventing plate 11 that is flush with the bottom plate 2a of the weedproof plate main body 2 is provided. Here, the L-shaped gap generation preventing plate 11 is formed integrally with the bottom plate 2 a of the weedproof plate body 2.
According to such a configuration, it is possible to connect the plurality of grass prevention plates 1 vertically and horizontally without any gap.

As shown in FIG. 1 to FIG. 4, FIG. 6, and FIG. 7, there are locking claws 12 in the vicinity of the two adjacent first outer surfaces 7, 8 with the claw portions 12 a facing outward. The first outer surfaces 7 and 8 are integrally provided. More specifically, the locking claw 12 is erected on the gap generation preventing plate 11 integral with the first outer side surfaces 7 and 8 (see FIG. 9 above).
Moreover, the nail | claw latching step part 13 which the nail | claw part 12a of the latching claw 12 latches is formed in the upper edge of other two adjacent 2nd outer side surfaces 9 and 10, respectively. The lower edges of the other two adjacent second outer surfaces 9 and 10 are paired with the claw locking step portion 13 so that the claw portion 12a of the locking claw 12 is engaged with the claw locking step portion 13. A support step 14 is provided to support stopping (see FIG. 9).
According to this configuration, when the male connecting portions 6a and 5b enter the female connecting portions 5a and 6b and the two grass protection plates 1 and 1 are connected, the claw portion 12a of the locking claw 12 is engaged with the claw. Locked to the stop 13. And thereby, the connection state of the two grass protection plates 1 and 1 is firmly maintained. As a result, it is possible to prevent the connected grass prevention plates 1 and 1 from being easily detached.

[Usage of grass protection plate]
Next, the usage method of the weed prevention plate in this Embodiment is demonstrated, also referring FIGS.

  FIG. 8 is a perspective view showing a method of connecting the weedproof plates in one embodiment of the present invention, FIG. 9 is a longitudinal sectional view seen from the direction of arrow A in FIG. 10 is a plan view (top view) showing a state in which the grass protection plates are connected vertically and horizontally, and FIG. 11 is a plan view (upper surface) showing another state in which the grass protection plates are connected vertically and horizontally (only one sheet is removed). Figure).

For example, when the grass protection plate 1 is laid in a predetermined area of an open field such as a garden or a park, the grass protection plate 1 may be laid while being connected vertically and horizontally, but a certain number of grass protection plates After connecting 1 vertically and horizontally, it may be laid.
In this case, the weedproof plate 1 is connected as follows.

When two grass protection plates 1 and 1 are connected vertically, first, as shown in FIG. 8, the first outer surface 7 of the grass protection plate body 2 of one grass protection plate 1 is positioned on the lower side. And, from the state where the second outer surface 9 of the grass protection plate body 2 of the other grass protection plate 1 is positioned on the upper side, the male connection portion 6a is slightly inserted into the female connection portion 5a, and the male connection portion 5b is inserted. A little is inserted into the female connecting portion 6b. In this state, the claw portion 12a of the locking claw 12 erected in the vicinity of the first outer surface 7 is located on the support step 14 formed on the lower edge of the second outer surface 9 (FIG. 9). (See (a)).
Next, the second outer surface 9 of the grass protection plate main body 2 of the other grass protection plate 1 is pushed downward (see arrow B in FIG. 9A). Thereby, the male connection part 6a is inserted in the female connection part 5a, and the male connection part 5b is inserted in the female connection part 6b. At the same time, the claw portion 12a of the locking claw 12 is once pushed to the first outer surface 7 side when coming out of the support step portion 14 (see arrow C in FIG. 9 (a)), and then the urging force thereof. Thus, it is locked to the claw locking step 13 formed on the upper edge of the outer surface 9 (see arrow D in FIG. 9B).
By the above operation, the male connecting portions 6a and 5b enter the female connecting portions 5a and 6b, respectively, so that the two grass prevention plates 1 and 1 are connected vertically, and the claw portion 12a of the locking claw 12 is engaged with the claw. Locked to the stop 13, the connected state of the two grass protection plates 1, 1 is firmly held.
In order to release the connected state, a flathead screwdriver or the like is inserted between the claw portion 12a of the locking claw 12 and the claw locking step portion 13, and the locking claw 12 is pushed toward the outer surface 7 side. What is necessary is just to pull up the 2nd outer side surface 9 of the weed prevention plate main body 2 of this weed prevention plate 1 upwards.

  When two grass protection plates 1 and 1 are connected horizontally, the first outer surface 8 of the grass protection plate body 2 of one grass protection plate 1 is positioned on the lower side, and the other grass protection plate 1 is placed. From the state where the second outer surface 10 of the grass protection plate main body 2 is positioned on the upper side, the male connecting portion 6a is inserted into the female connecting portion 5a, and the male connecting portion 5b is inserted into the female connecting portion 6b. Good. As a result, the male connecting portions 6a and 5b enter the female connecting portions 5a and 6b, respectively, so that the two grass protection plates 1 and 1 are connected horizontally, and the claw portion 12a of the locking claw 12 is connected to the claw locking step. Locked to the portion 13, the connected state of the two grass protection plates 1, 1 is firmly held.

As shown in FIG. 10, the grass protection plate 1 can be laid in a predetermined area of an open field such as a garden or a park, for example, while connecting the plurality of grass protection plates 1 vertically and horizontally as described above.
The grass protection plate 1 in this case includes a rectangular dish-shaped grass protection plate main body 2, and a convex portion 3 having a bottomed cylindrical shape with an upper end opening provided on the bottom plate 2 a of the grass protection plate main body 2. Since the water-permeable holes 3a and 3b drilled in the bottom surface of the convex portion 3 are provided, the water-permeable holes 3a and 3b can be installed on the open ground where weeds grow. Moreover, every time it rains, after rainwater once accumulates in the convex part 3, it penetrates into the open ground through the water-permeable holes 3a and 3b. And thereby, the grass prevention plate 1 adapts to an open field. As a result, since the installation position does not change due to external factors, it is not necessary to attach a pile as in the case of the weed growth suppression plate (weedproof plate) disclosed in Patent Document 2. Further, the plurality of grass protection plates 1 can be laid without a gap by a simple operation of simply connecting the first connecting means 5 and the second connecting means 6 to each other. Therefore, it is possible to perform the laying work of the grass prevention plate safely and efficiently.
Further, the weed prevention plate 1 is connected vertically and horizontally without gaps, and the water-permeable holes 3a, 3b, 3c drilled in the weed prevention plate main body 2 have such a size that weeds do not enter. 1 can be prevented from coming out. Furthermore, since the sunlight is blocked by the weed prevention plates 1 connected without gaps, germination, growth, overgrowth, etc. of new weeds can be prevented.

  Moreover, since the weed prevention plate main body 2 is formed in the rectangular dish shape, putting a gravel or a stone in it can improve appearance and can also improve a weed prevention effect. In addition, the gravel and stone can be kept clean as compared with the case where the gravel and stone are laid directly on the open ground. That is, for example, it is possible to prevent white gravel and stones from being mixed with soil and becoming brown.

  Moreover, when laying in the area | region where a tree etc. are already planted, as shown in FIG. 11, what is necessary is just to make it the state which removed the weed prevention plate 1 only about the said trees etc. part.

  In the above embodiment, the locking claw 12 is integrated with the first outer side surfaces 7 and 8 in the vicinity of the first outer side surfaces 7 and 8 with the claw portions 12a facing outward. Although the case where the nail | claw latching step part 13 which is standingly arranged and the claw part 12a of the latching claw 12 each latches in the upper edge of the 2nd outer surface 9 and 10 was formed was demonstrated as an example, it demonstrated. The present invention is not necessarily limited to such a configuration. The grass protection plate of the present invention includes a first connecting means provided on each of two adjacent first outer surfaces of the four outer surfaces of the grass protection plate main body, and another adjacent one of the four outer surfaces. Second connecting means provided on each of the two second outer surfaces, and the first connecting means and the second connecting means are connected to each other so that they can be connected vertically and horizontally without any gap. , Can achieve the intended purpose. That is, the connection state of the grass protection plate of the present invention may be loose.

  Moreover, in the said embodiment, although the case where the convex part 3 was each provided in the center and four corners of the bottom plate 2a of the weed prevention plate main body 2 was demonstrated as an example, this invention does not necessarily have such a structure. It is not limited. The convex portions may be provided anywhere on the bottom plate of the weedproof plate body, and the number thereof is also arbitrary.

  Moreover, in the said embodiment, although the water-permeable hole 3b about 6 mm in diameter demonstrated as an example the case where it was divided | segmented into the substantially cross shape and divided into four parts, this invention is not necessarily limited to such a structure. Is not to be done. If the water permeable holes 3b are of a size that does not allow weeds to enter, it is not always necessary to divide into four substantially in a cross shape. Moreover, even if it is the water-permeable holes 3a and 3c of about 2 mm in diameter, it can also be divided into four by dividing | segmenting into a substantially cross shape. And according to this structure, when the weedproof plate 1 is laid in an open field, it becomes possible to prevent the weeds from entering the grassproof plate main body 2 from the open field more completely.

  Moreover, in the said embodiment, although the case where the 1st connection means 5 and the 2nd connection means 6 could be engaged / disengaged to an up-down direction was mentioned as an example, this invention does not necessarily have such a structure. It is not limited to. The first connecting means and the second connecting means may be detachable in the horizontal direction.

  Moreover, in the said embodiment, the case where the inside of the weed prevention plate main body 2 is reinforced in the diagonal grid | lattice form by the reinforcement board 4 standingly arranged on the diagonal of the baseplate 2a and a line parallel to it is an example. Although described above, the present invention is not necessarily limited to such a configuration. The inside of the weedproof plate body may be reinforced in a lattice shape, for example, or may not be reinforced at all.

DESCRIPTION OF SYMBOLS 1 Grass prevention plate 2 Grass prevention plate main body 2a Bottom plate 3 Protrusion part 3a, 3b, 3c Water-permeable hole 4 Reinforcement plate 5 1st connection means 5a, 6b Female connection part 5b, 6a Male connection part 6 2nd connection means 7, 8 1st DESCRIPTION OF SYMBOLS 1 Outer surface 9,10 2nd outer surface 11 Crevice generation | occurrence | production prevention plate 12 Locking claw 12a Claw part 13 Claw locking step part 14 Support step part

Claims (7)

  A rectangular dish-shaped weed plate main body, a convex portion having a bottomed cylindrical shape with a top opening provided on the bottom plate of the weed plate main body, and a weed drilled on the bottom surface of the convex portion A water-permeable hole of a size that does not penetrate, a first connecting means provided on each of two adjacent first outer surfaces of the four outer surfaces of the weedproof plate body, and the four outer surfaces Second connecting means provided on each of the other two adjacent second outer surfaces, and the first connecting means and the second connecting means are connected to each other so that there is no gap in the vertical and horizontal directions. A herbicidal plate characterized by being connectable.   The said convex part is a weedproof plate of Claim 1 provided in the at least four corners of the said baseplate of the said weedproof plate main body.   The weedproof plate according to claim 1 or 2, wherein the water-permeable hole is divided into four substantially in a cross shape.   The weed prevention plate according to any one of claims 1 to 3, wherein the first connecting means and the second connecting means can be engaged and disengaged in a vertical direction.   The weed prevention plate according to claim 4, wherein each of the first and second connection means includes a pair of female connection portions and a male connection portion that are provided apart from each other.   The bottom edge of the two adjacent first outer surfaces is flush with the bottom plate of the weedproof plate body so that no gap is created between the weedproof plates when the weedproof plates are connected vertically and horizontally. The weed prevention plate according to any one of claims 1 to 5, wherein an L-shaped gap generation prevention plate is provided. In the vicinity of the two adjacent first outer surfaces, the locking claws are erected integrally with the first outer surface in a state facing outward,
The nail | claw latching step part which the nail | claw part of the said latching claw latches, respectively is formed in the upper edge of the other two said 2nd outer side surfaces which adjoin each other. The weedproof plate according to Item.