JP6359040B2 - Method for producing herbicidal structure - Google Patents

Description

  The present invention relates to a method for manufacturing (constructing) a herbicidal structure suitable for installation in an area where grass growth needs to be prevented.

  For the construction surface in the area where we want to prevent the growth of grass, we laid several adjacent strips of grass strips that are several millimeters long in the short (width) direction. The construction method of the weedproof structure which joins between adjacent weedproof sheets is known (for example, Patent Documents 1 and 2).

JP 2004-33032 A JP 2011-106092 A

When the grass protection structure constructed by the above method is viewed in plan, any of the grass protection sheets constituting the grass protection structure is used as a reference sheet, and this reference sheet is the starting point. Hereinafter, the weedproof sheets adjacent to each other in the width direction will be described as other sheets.
Conventionally, after one of the reference sheet and the other sheet (for example, the reference sheet) is overlapped with the other (for example, the other sheet) so that the end thereof is on the upper side, In addition, the herbicidal structure was constructed (manufactured) on the construction surface by bonding with an adhesive or double-sided tape or by fusing by heating.

It should be noted that even on a seemingly horizontal ground, all the areas are not logically horizontal, and there is always an inclination (gradient) somewhere in the area. Therefore, if it rains in the construction area after the construction, the rainwater caused by the rain always flows in a slope of the construction surface unless an obstacle that changes the direction of drainage is actively provided somewhere in the construction area.
The joint portion formed between the reference sheet and the other sheet of the weedproof structure constructed by the conventional method is only the thickness of the other sheet (about several millimeters) relative to the upper surface of one sheet. Considering that it is slightly raised, has no substantial protrusion in the thickness direction, is almost flat, and that the grass protection structure has a surface (upper surface) that follows the surface shape of the construction area. When it rains after construction in the area, the rainwater that does not penetrate into the weed protection structure flows along the upper surface of the weed protection structure in a gradient. When the rainwater flowing in this way flows into the back side (on the construction surface) of the weed protection structure, scouring of a new water channel that was not expected at the beginning of construction will occur, and sediment discharge or landslide may occur. May cause inconveniences with sex.

  Therefore, it is assumed that rainwater flowing in a gradient along the upper surface of such a weed proof structure flows into the back side of the weed proof structure from a joint formed between the reference sheet and another sheet. In order to prevent this, in the conventional method, in consideration of the inclination in the entire construction area, the end of the other sheet whose end is on the upper side relative to the reference sheet is always directed to the downstream side of the gradient. It is necessary to lay the reference sheet on the side, and to overlap the other sheet so that the end of the other sheet is directed upward from the gradient upstream side (paragraph 0016 of Patent Document 1). And there were restrictions on the order of laying other sheets.

  In addition, if there are obstacles such as trees, stones, structures, etc. on the construction surface, consider in advance the arrangement of the reference sheet in consideration of each obstacle and the laying direction of the reference sheet and other sheets. The number of matters to be increased has often hindered the freedom of design and construction procedures by the installer.

  The present invention has been made in view of the above points, and its purpose is to provide a high degree of freedom in construction regardless of the presence or absence of obstacles and obstacles, and to efficiently construct a weedproof structure on the construction surface. An object of the present invention is to provide a method for producing a weedproof structure.

  In the following, in order to facilitate understanding of the present invention, reference numerals corresponding to the drawings showing the embodiments of the present invention will be attached and described, but the present invention is not limited thereto.

  In order to achieve the above object, the method for producing a herbicidal structure according to the first aspect of the present invention includes a plurality of herbicidal sheets (A) having at least one of vertical and horizontal arrangement directions (only X, only Y, Between Y1 only, X and Y, or X and Y1) adjacent herbicidal sheets (A1 and A2, A2 and A3, A3 and A4, A11 and A21, A21 and A31, A31 and A41, A12 and A22, Weed prevention structure (A22 and A32, A32 and A42, A1 and A11, A11 and A12, A2 and A21, A21 and A22, A3 and A31, A31 and A32, A4 and A41, A41 and A42) 100), which has at least a first step, a second step, and a third step.

  The first step of the first aspect is integrated with at least one of both ends in one direction (for example, X) extending along one end of the rectangular sheet body (1) and at both ends in the other direction (for example, Y) orthogonal to the one direction. Is a step of preparing a plurality of weedproof sheets (A) having side edge pieces (10, 11, 12, 13, 14) formed so as to be continuous with each other.

  The second step of the first viewpoint is between the adjacent weedproof sheets (A1 and A2, A2 and A3, A3 and A4, A11 and A21, A21 and A31, A31 and A41, A12 and A22, A22 and A32, A32 and A42, A1 and A11, A11 and A12, A2 and A21, A21 and A22, A3 and A31, A31 and A32, A4 and A41, A41 and A42) (10. For example, 13 and 14, , 11 and 12) is a step of laying a necessary number of the weedproof sheets (A) on the construction surface (G) in a predetermined arrangement direction so that the upper and lower surfaces overlap each other.

  In the third step of the first aspect, for all the weedproof sheets (A) laid on the construction surface (G), at least one arrangement direction (for example, when the sheets are arranged in X and Y, only X is used) Or only Y, X and Y. When sheets are arranged in X and Y1, only X, only Y1, or X and Y1 may be used.) Side edge pieces (10, at least 13) between sheets (A1 and A2, A2 and A3, A3 and A4, A11 and A21, A21 and A31, A31 and A41, A12 and A22, A22 and A32, A32 and A42) 14) is a step of bonding the back surfaces to each other to form a joint (102, at least 102b). The joint formed in the third step substantially protrudes upward in the thickness direction of the rectangular sheet body (1) and extends in a direction (X) orthogonal to the arrangement direction (at least Y, Y1).

The manufacturing method for the herbicidal structure according to the second aspect of the present invention,
A plurality of herbicidal sheets (A) are adjacent to each other (A1 and A2, A2 and A3, A3 and A4, A11 and A21, A21 and A31) in the construction surface (G) in the inclined direction (Y1). , A31 and A41, A12 and A22, A22 and A32, A32 and A42), and a method of manufacturing the weedproof structure (100), which includes at least a first step, a second step, and a third step .

  The first step of the second aspect is similar to the first aspect in one direction (for example, X) extending along one end of the rectangular sheet body (1) and the other direction (for example, Y) orthogonal to the one direction. This is a step of preparing a plurality of weedproof sheets (A) having side edge pieces (10, 11, 12, 13, 14) formed so as to be continuous integrally with at least one of both ends.

  The second step of the second aspect is between the adjacent weedproof sheets (at least A1 and A2, A2 and A3, A3 and A4, A11 and A21, A21 and A31, A31 and A41, A12 and A22, A22 and A32, A32 and A42) each side edge piece (10. At least 13 and 14) overlap each other on the upper and lower surfaces, the necessary number of the weedproof sheets (A) at least the inclination direction (Y1) of the construction surface (G) It is a process of laying.

  The 3rd step of the 2nd viewpoint is about between all the weed prevention sheets (A) laid in the construction surface (G) between the weed prevention sheets (A1) which adjoin at least the inclination direction (Y1) of the construction surface (G). A2 and A2, A2 and A3, A3 and A4, A11 and A21, A21 and A31, A31 and A41, A12 and A22, A22 and A32, A32 and A42) (10, at least 13 and 14) In this step, the bonding portions (102, at least 102b) are formed by bonding them together. The joint formed in the third step substantially protrudes above the thickness direction of the rectangular sheet body (1) and extends in the direction (X) perpendicular to the arrangement direction (at least Y1).

"Common subject matter"
In the present invention, when the construction surface is inclined, the third step is between the weedproof sheets adjacent in the inclination direction (Y1) of the construction surface (G) (A1 and A2, A2 and A3, A3 and A4, A11). Among the side edge pieces (13 and 14) of A21 and A21, A21 and A31, A31 and A41, A12 and A22, A22 and A32, A32 and A42), one side edge piece (G1) located on the gradient upstream side (G1) ( 13) is bent in a substantially L shape toward the upper surface side of the sheet main body (1) to make a crease, and the other side edge piece (14) located on the gradient downstream side (G2) is connected to the upper surface side of the sheet main body (1). The back surfaces can be bonded to each other in a state where they are rolled up.

  In the present invention, one side edge piece (13) located on the upstream side of the gradient (G1) is bent in a substantially L shape and is creased, or may be fixed in a substantially L shape using a solvent. it can.

  In the present invention, prior to the third step, both side edge pieces (13, 14) on the gradient upstream and downstream sides can be temporarily fixed in the vicinity of the folds (23, 24). This temporary fixing can be removed (released) after the third step is executed.

  According to the method of the present invention, for all the weedproof sheets laid on the construction surface, since there is a step of bonding the side edge pieces between the adjacent weedproof sheets between the back surfaces to form a joint, an inclination or an obstacle Regardless of the presence or absence, there is no restriction on the order of laying between adjacent grass protection sheets (laying from downstream to upstream, as well as from upstream to downstream, from center to end, from end to center, etc.). Therefore, according to the method of the present invention, it is possible to provide a method for manufacturing a herbicidal structure that has a high degree of freedom in construction and that can efficiently construct a herbicidal structure on a construction surface.

FIG. 1 is a plan view showing an example of a herbicidal structure produced by the method of the present invention. FIG. 2 is a sectional view taken along line II-II in FIG. FIG. 3 is a sectional view taken along line III-III in FIG. FIG. 4 is a cross-sectional view corresponding to FIG. 2 when the construction surface is inclined. FIG. 5 is a plan view showing an example of a weedproof sheet used for manufacturing the weedproof structure of FIG. 6 (A) to 6 (C) are cross-sectional views showing an example of the method of the present invention.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
In this example, the weedproof structure 100 illustrated in FIGS. 1 to 3 is illustrated as the weedproof structure, and the configuration and manufacturing method thereof will be described.

  In the following description, the vertical direction when the weedproof structure 100 is viewed in plan (see FIG. 1) is referred to as “X direction”, and the horizontal direction orthogonal to the X direction is referred to as “Y direction”. Any of the weedproof sheets A constituting the weedproof structure 100 is defined as a “reference sheet A1”, and the weedproof sheets adjacent to each other in the X direction starting from the reference sheet A1. Is “other sheet A11”, and the weedproof sheets adjacent in the Y direction are “other sheets A2, A21”.

First, a configuration example of a weedproof structure to be constructed (manufactured) will be described.
As shown in FIG. 1, a herbicidal structure 100 constructed (manufactured) by the method of this example has a plurality (12 or more in the illustrated example) of herbicidal sheets A arranged vertically and horizontally, and all the herbicidal structures 100 are arranged. The sheet A has a structure in which the adjacent herbicidal sheets A and A are connected to each other by the joint portion 102. The bonding portion 102 includes a bonding first portion 102a extending in the Y direction and a bonding second portion 102b extending in the X direction.

  As shown in FIGS. 1 and 3, the bonding first portion 102 a is located on the lower side of the reference sheet A <b> 1 between the reference sheet A <b> 1 and another sheet A <b> 11 adjacent in the vertical direction (X direction). The edge first piece 12 and the side edge first piece 11 positioned on the upper side of the other sheet A11 are formed so as to extend in the lateral direction (Y direction) by bonding the respective back surfaces to each other. ing. That is, the joining first portion 102a is arranged in the X direction, and the side edge first pieces 11, 12 facing each other, such as the reference sheet A1 and the other sheets A11, A12, which are adjacent to each other in this direction. Are formed by adhering their back surfaces to each other and extending in the Y direction orthogonal to the X direction.

  As shown in FIG. 3, the joining first portion 102 a is substantially composed of both of the opposing side edge first pieces 11 and 12 between the weedproof sheets adjacent in the X direction (A1 and A11, A11 and A12, etc.). You may adhere | attach the back surfaces in the state bent in L shape. However, the state of the side edge first pieces 11, 12 facing each other between the weedproof sheets adjacent in the X direction (A1 and A11, A11 and A12, etc.) of the joint first portion 102a is not particularly limited.

  Although not shown, the same applies to the other sheets A11 and A12. The sheet A21 and the other sheet A22 starting from the other sheet A2, the sheet A31 starting from the other sheet A3 and the other sheet A32, and the sheet A4 starting from the other sheet A4. The same applies to A41 and the other sheet A42.

  As shown in FIGS. 1 and 2, the joining second portion 102 b is a side edge third piece 14 located on the right side of the reference sheet A1 between the reference sheet A1 and another sheet A2 adjacent in the Y direction. And the side edge 2nd piece 13 located in the left side of the other sheet | seat A2 is formed so that it may extend in a X direction by adhere | attaching each back surface mutually. That is, the joining second portion 102b is arranged in the Y direction, and the side edge second pieces 13 facing each other such as the reference sheet A1 and the other sheets A2, A3, A4 adjacent to each other in this direction are arranged. And the back surfaces of the side edge third pieces 14 are bonded to each other and extend in the X direction perpendicular to the Y direction.

  As shown in FIG. 2, the joining second portion 102 b is formed on each side edge piece (second side edge second) between the weed prevention sheets adjacent in the Y direction (A1 and A2, A2 and A3, A3 and A4, etc.). Of the piece 13 and the side edge third piece 14), only the one side edge second piece 13 is bent in a substantially L shape, and the back side is bonded to the other side edge third piece 14. It may be. However, as with the joint first part 102a, each side edge piece (A1 and A2, A2 and A3, A3 and A4, etc.) facing each other between the herbicidal sheets adjacent in the Y direction of the joint second part 102b ( The state of the side edge second piece 13 and the side edge third piece 14) is not particularly limited.

However, when the construction surface G as a whole is inclined in the inclination direction (Y1 direction) connecting the gradient upstream side G1 and the gradient downstream side G2, for example, as shown in FIG. Between the gaps (A1 and A2, A2 and A3, A3 and A4, etc.), the side edge second piece 13 of the weed prevention sheet A2 on the upstream side of the gradient is firmly folded into a substantially L shape via the folding line 23, and the gradient It is preferable to join the back surfaces of the downstream side weed-proof sheet A1 with the side edge third piece 14 rolled up. By adopting such a structure, it is possible to curve only the downstream side of the slope of the joint portion 102 (joint second portion 102b), thereby improving the strength that can resist the rainwater flowing in a gradient manner. Can be expected.
It is also effective to harden the side edge second piece 13 and the side edge third piece 14 in the above-described manner using a solvent.

  Although not shown in the drawings, the same is true between the other sheet A2 and the other sheet A3 and between the other sheet A3 and the other sheet A4. In addition, between the sheet A11 and the other sheet A21 starting from the other sheet A11, between the other sheet A21 and the other sheet A31, between the other sheet A31 and the other sheet A41, and other sheet A12. The same applies to the starting point between the sheet A12 and the other sheet A22, between the other sheet A22 and the other sheet A32, and between the other sheet A32 and the other sheet A42.

  As shown in FIG. 2 and FIG. 3, both the joining first portion 102 a and the joining second portion 102 b are formed so as to substantially protrude upward in the thickness direction of the rectangular sheet body 1. The protrusion height H (see FIGS. 2 and 3) is, for example, about 10 to 100 mm, preferably 30 mm or more. Note that “substantially protrude” means that the rectangular sheet body 1 (and thus the weedproof sheet A) rises at least 10 mm, preferably 30 mm or more above the thickness direction.

  In the present example, the bonded first portion 102a and the bonded second portion 102b are formed so that the arrangement pattern is a staggered zigzag pattern. Specifically, among all the joint portions 102, only the joint first portions 102a extending in the Y direction are formed to be staggered along the Y direction. The joining first part 102a is set so that the shift width W in the X direction is preferably 50 mm or more, more preferably 100 mm or more. On the other hand, all the joint second portions 102b extending in the X direction are formed so as to be continuous along the X direction.

Next, an example of a method for constructing (manufacturing) the grass protection structure 100 having the above-described configuration will be described.
Construction site is not particularly limited, for example, vacant land, shoulder, road, passage, roadside, riverbed, bank, garden, garden, rice field, field, forest, parking lot or solar power generation facility, and the surrounding ground Any place where weed protection is necessary, such as a surface or a slope.

  In this example, regardless of the inclination of the construction surface G, even when obstacles are scattered, the effect can be exhibited most. Although details will be described later, according to this construction example, the side edge pieces between the weedproof sheets A, A adjacent in the predetermined arrangement direction are bonded to each other on the back surface, so that the position where the weedproof sheet A starts to be laid is Construction can be performed from any position, such as the gradient upstream side, gradient downstream side, center, or end of the construction area, and the degree of freedom of construction is extremely high.

  In this example, a case where the slope of the construction surface G is strong is illustrated, and a construction example in the slope direction (Y1 direction) connecting the gradient upstream side G1 and the downstream side G2 will be described.

First Step First, for example, a plurality of weedproof sheets A shown in FIG. 5 are prepared (first step).
The herbicidal sheet A is, for example, a synthetic resin (for example, polyester, polypropylene, vinyl, etc.) excellent in weather resistance, and has a non-light-transmitting (for example, black or green) and flexible rectangular shape (for example, a long length). A belt-like sheet body 1.

The rectangular sheet body 1 has a small width (for example, 10) that is integrally continuous with the upper and lower ends (both ends in the longitudinal direction) of the longitudinal direction (X direction) as an example of “one end extending in one direction” as referred to in the present invention. Side edge first pieces 11 and 12 of about 100 mm are formed.
In addition to this, the sheet body 1 of the present example is integrated with the left and right ends (both ends in the width direction) of the width direction (Y direction) as an example of “both ends in the other direction orthogonal to the one direction” referred to in the present invention. A side edge second piece 13 and a side edge third piece 14 having a continuous small width (for example, about 10 to 100 mm) are formed.

  In addition, the side edge 1st parts 11 and 12 and the side edge 2nd part 13 of this example may be formed through the fold lines 21, 22, and 23, respectively. However, in the present invention, it does not matter whether or not there is a folding line. On the other hand, it is preferable that the side edge third portion 14 suitable for the arrangement on the downstream side of the gradient is formed integrally and continuously with the sheet body 1 without using a folding line.

  The size of each herbicidal sheet A is, for example, about 0.5 m to 4 m in width (Y direction), about 0.5 m to 500 m in length (X direction), and about 300 μm to 10 mm in thickness.

Second Step Next, foreign matter and protrusions (miscellaneous matter, stones, grass, tree roots, etc.) are removed, and the construction surface G that is leveled without so-called unevenness (without unevenness) is shown in FIG. 6 (A). As shown in FIG. 3, the required number of the weedproof sheets A are laid in the vertical and horizontal arrangement directions (X and Y). At this time, the side edge pieces 10 (11, 12, 13, 14) between the adjacent weedproof sheets A and A (for example, A1 and A2, A2 and A3, A3 and A4, etc.) Lay it overlaid (second step).

The arrangement position in the X direction with respect to the construction surface G of the grass protection sheet A1 to be laid first is not particularly limited, and is arranged at any position other than the gradient most downstream side, the gradient most upstream side, and the middle of the upstream and downstream. be able to. That is, whether the side edge piece 10 arranged on the upper surface is the side edge second piece 13 of the weedproof sheet A2 on the gradient upstream side or the side edge third piece 14 of the weedproof sheet A1 on the gradient downstream side. The other is unquestioned.
This is because, in this example, as will be described later, the side edge third piece 14 on the gradient upstream side of the weedproof sheet A1 arranged on the gradient downstream side is raised in the upper surface direction of the sheet body 1 and on the gradient upstream side. After the side edge second piece 13 on the gradient downstream side of the arranged herbicidal sheet A2 is firmly bent in the upper surface direction of the sheet main body 1 along the folding line 23, the side edge second piece 13 of the sheet A2 is finally folded. And the side edge second piece 13 of the weedproof sheet A2 and the side of the weedproof sheet A1 when laying a plurality of the weedproof sheets A in order to bond the back surfaces of the side edge third pieces 14 of the sheet A1. It does not matter which of the third edge pieces 14 is on top. Moreover, it can be laid from a plurality of locations (for example, both upstream and downstream). In these respects, the degree of freedom of construction is greatly improved as compared with the conventional construction method that must be laid in order from the gradient downstream side toward the upstream side.

  In this example, the side edge pieces 10 facing each other between the grass protection sheets A and A adjacent to each other (for example, A1 and A2, A2 and A3, A3 and A4, A1 and A11, A11 and A12, etc.) when laid. , 10 (side edge second piece 13 and side edge third piece 14 between the weedproof sheets adjacent in the Y direction, side edge first piece 11 and side edge first between the weedproof sheets adjacent in the X direction. The overlapping width W1 of the piece 12) is preferably at least twice the projecting height H (see FIGS. 2 and 3) at the time of completion.

Step 3 Next, as shown in FIG. 6C, for all the weedproof sheets A laid on the construction surface G, the weedproof sheets A and A adjacent to each other in the vertical and horizontal arrangement directions (X and Y). The side edge pieces 10 (11 and 12, 13 and 14) between them are bonded to each other on the back surfaces to form the first bonded portion 102a and the second bonded portion 102b (third step).

  In this example, first, among the adjacent weedproof sheets A and A, the set height is bent from the end of the weedproof sheet disposed on the upper side. The “weedproof sheet disposed on the upper side” is, for example, the grassproof sheet A2 when viewed with respect to the grassproof sheet A1 and the grassproof sheet A2, and the grassproof sheet A2 with respect to the grassproof sheet A2 and the grassproof sheet A3. If it sees about the grass prevention sheet A3 and the grass prevention sheet A4, it will be the grass prevention sheet A3. At this time, if the weedproof sheet disposed on the upper side is disposed on the upstream side of the gradient (for example, A2 between A1 and A2), the side edge second portion 13 is firmly folded at the crease 23. If it is arranged on the lower side of the gradient (for example, A2 between A2 and A3), the side edge third portion 14 is lightly creased.

  Next, the lower weedproof sheet (for example, A1 between A1 and A2) is lifted over the upperly disposed weedproof sheet (for example, A2 between A1 and A2) and placed on the upper side. Make a crease at the same fold position as the weed protection sheet. At this time, if the weedproof sheet disposed on the upper side is disposed on the upstream side of the gradient (for example, A2 between A1 and A2), the side edge second portion 13 is firmly folded at the crease 23. If it is arranged on the lower side of the gradient (for example, A2 between A2 and A3), the side edge third portion 14 is lightly creased.

  It should be noted that the height may be different when both the slope upstream side and the slope downstream side of the grass protection sheet are launched. In this case, it is desirable to cut to a set height.

Thereafter, the opposing side edge pieces 10 (11 and 12, 13 and 14) are bonded to each other on the back surface to form the bonded first part 102a and the bonded second part 102b.
The bonding method between the back surfaces is not particularly limited, for example, a method in which the back contact portion is melted and solidified to heat and melt each other, or a tape having a double-sided adhesive self-adhesive layer is sandwiched between both back surfaces. There are a method of bonding by inserting and rolling, a method of sewing with a string-like object, a method of bonding by impregnating a paint such as FRP, and the like. In this example, any method may be used.

  The grass prevention structure 100 is constructed (manufactured) through the above steps.

In this example, prior to the third step, for example, a temporary fixing operation shown in FIG. 6B may be performed.
For example, first, the side edge second piece 13 on the gradient downstream side of the weedproof sheet A2 located on the gradient upstream side is firmly bent in the upper surface direction of the sheet main body 1 along the folding line 23. At the same time, the side edge third piece 14 on the gradient upstream side of the weedproof sheet A1 located on the gradient downstream side is rolled up in the upper surface direction of the sheet main body 1 (natural curved state without a fold). In this state, after making each lower surface (back surface) of the side edge second piece 13 of the sheet A2 and the side edge third piece 14 of the sheet A1 face each other, the side edge second piece 13 of the sheet A2 with respect to the sheet body 1 Near the crease 23 (around the base of the fold line 23), the temporary fixing portion 30 is formed by a stapler or the like.

  Next, the third step is performed by adhering the overlapping portions of the side edge second piece 13 and the side edge third piece 14 protruding above the temporary fixing portion 30 to each other on the back surfaces.

  Thereafter, by temporarily removing the temporary fixing portion 30, the sheets A1 and A2 are joined to each other. In this example, since the folding line is not provided between the side edge first piece 14 on the gradient upstream side and the sheet main body 1 of the sheet A1 located on the gradient downstream side, when the temporary fixing is removed after the completion of the bonding, the sheet A1 The boundary between the side edge third piece 14 and the sheet main body 1 is naturally curved, whereby a strength capable of resisting the flowing rainwater is given to the joint portion. Further, the side edge first piece 14 of the sheet A1 and the side edge second piece 13 of the sheet A2 may be fixed with a solvent.

  According to the construction method of this example, with respect to all the weedproof sheets A laid on the construction surface G, between the adjacent weedproof sheets (A1 and A2, A2 and A3, A3 and A4, A11 and A21, A21 and A31, A31 and A41, A12 and A22, A22 and A32, A32 and A42, A1 and A11, A11 and A12, A2 and A21, A21 and A22, A3 and A31, A31 and A32, A4 and A41, A41 and A42) It has the process of bonding edge piece (10, for example, 13 and 14, or 11 and 12) with back surfaces, and forming joined 1st part 102a and joined 2nd part 102b. For this reason, there is no restriction on the order of laying between adjacent weed protection sheets regardless of the inclination or the presence of obstacles (second step). Therefore, the degree of freedom of construction is high and the construction surface is efficiently weeded. The structure 100 can be constructed.

  The embodiment described above is described for facilitating understanding of the present invention, and is not described for limiting the present invention. Therefore, each element disclosed in the above embodiment is intended to include all design changes and equivalents belonging to the technical scope of the present invention.

  The above embodiment is described assuming a land with a slope, but construction is possible even on a flat land. In the case of flat ground, it is desirable to determine the gradient upstream side or gradient downstream side in consideration of the overall gradient to be laid, but this is not restrictive.

DESCRIPTION OF SYMBOLS 100 ... Weed prevention structure 102 ... Joining part 102a ... Joining 1st part (joining part)
102b ... 2nd part of joining (joining part)
A ... Weedproof sheet 1 ... Rectangular sheet body 10 ... Side edge piece 11,12 ... Side edge first piece (side edge piece)
13 ... second edge piece (side edge piece)
14 ... Third edge piece (side edge piece)
21, 22, 23 ... folding line 30 ... temporary fixing part

Claims (4)

A method for producing a weedproof structure in which a plurality of weedproof sheets are joined to each other at least between adjacent weedproof sheets in the arrangement direction of either length or width,
Preparing a plurality of weedproof sheets having side edge pieces formed so as to be integrally connected to at least one of both ends in one direction extending along one end of the rectangular sheet main body and the other direction orthogonal to the one direction; One step,
A second step of laying a required number of the weedproof sheets in the predetermined arrangement direction on the construction surface so that the side edge pieces between the adjacent weedproof sheets overlap each other on the upper and lower surfaces;
For all the weedproof sheets laid on the construction surface, out of the side edge pieces between the weedproof sheets adjacent to each other in the inclination direction of the construction surface, one side edge piece located on the upstream side of the gradient is directed to the upper surface side of the sheet body. Bending in a substantially L shape to make a crease, and with the other side edge piece located on the gradient downstream side raised to the upper surface side of the sheet body, the back surfaces are bonded together to form a joint part And a method for producing a weedproof structure. A method for producing a weedproof structure in which a plurality of weedproof sheets are joined together between the weedproof sheets adjacent to each other in at least the inclination direction of the construction surface,
Preparing a plurality of weedproof sheets having side edge pieces formed so as to be integrally connected to at least one of both ends in one direction extending along one end of the rectangular sheet main body and the other direction orthogonal to the one direction; One step,
A second step of laying the required number of grass protection sheets in at least the direction of inclination of the construction surface so that the side edge pieces between adjacent grass protection sheets overlap on each upper and lower surfaces;
For all the weedproof sheets laid on the construction surface, out of the side edge pieces between the weedproof sheets adjacent to each other in the inclination direction of the construction surface, one side edge piece located on the upstream side of the gradient is directed to the upper surface side of the sheet body. Bending in a substantially L shape to make a crease, and with the other side edge piece located on the gradient downstream side raised to the upper surface side of the sheet body, the back surfaces are bonded together to form a joint part And a method for producing a weedproof structure. The method for producing a weedproof structure according to claim 1 or 2 , wherein, prior to bonding the back surfaces together, both side edge pieces on the gradient upstream / downstream side are temporarily fixed near the crease. The manufacturing method of the weedproof structure of Claim 3 which cancel | releases temporary fixing after making it adhere | attach between back surfaces.

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