JP4369338B2 - Slope planting bag - Google Patents

Description

  The present invention relates to a planting bag for a slope, which is used for planting on a slope of a soil such as a cut slope facing a road.

  A planting method is known that uses a planting bag filled with cultivated soil on a cutting slope where it is difficult to cut the soil. As planting bags, for example, sandbags or non-woven bags can be used. However, when these bags are used, there is a problem in that drying from the bag surface is severe and seedlings tend to die. It was. Therefore, as a means for solving such a problem, for example, a bag for planting and seedling production disclosed in JP-A-11-89449 has been devised.

  The seedling production bag is integrated with one peripheral portion of each of the other water-impermeable sheet portions covering the other peripheral portion, and a water passage interval is provided between both peripheral portions. And the soil is filled, seedlings are embedded in the culture soil by cutting a part of the impermeable sheet portion on the surface of the bag or through a previously formed slit, and the central portion of the bag is raised It is used by placing it on the planting surface. At this time, a portion having a surrounding water passage interval is positioned in a lower position. As a result, the moisture contained in the filled soil is prevented from evaporating to the outside, while water droplets during watering or raining strike the impervious sheet surface on the top surface and flow along the slope, and the surrounding water flow It penetrates into the internal soil through the interval, and water retention over a long period is possible.

  In addition, in the above publication, as another type of the seedling production bag, the water-impermeable sheet portion and the water-permeable sheet portion are integrated at the periphery of the both, and the periphery of the water-impermeable sheet portion extends outward. The thing provided with the covered part which was made is disclosed. According to this type of bag, the covering portion is extended so as to cover the periphery of the bag installation surface, so that weeds around the bag are prevented from growing, and the seedlings with low height are covered with the weeds and become poorly grown. Can be prevented.

JP 11-89449 A

  However, in order to maintain sufficient moisture for the soil in the seedling production bag, it is not sufficient to collect water droplets that hit the impervious sheet surface of the upper surface, and the bag out of the water that flows along the surface of the paste surface What passed through the surface also had to be collected. Therefore, when the slope of the slope used for the saplings production bag is moderate, rainwater or the like becomes difficult to flow along the surface of the slope, the amount of water flowing on the surface of the bag is reduced, and the bag is prevented from drying. There was a problem that sufficient water could not be collected.

  In addition, the type of bag having a covering portion has a problem in workability because the covering portion needs to be fixed. In addition, when the height of the seedling is low, a method of increasing the area of the bag and expanding the area where weeds do not grow around the seedling can be considered, but with this method, the bag becomes large and heavy, There was a problem that workability deteriorated.

  Therefore, the present invention provides a pavement planting bag that can sufficiently collect water even on a sloping slope surface, and can effectively prevent poor growth of seedlings without reducing workability. It is to provide.

  In the bag for planting a slope according to the present invention, the front sheet and the back sheet are integrated in a state where both sides and long sides of the trapezoidal front sheet are covered with the peripheral edge of the back sheet larger than the front sheet. It has become a trapezoid. The front sheet is impermeable, has a planting hole opening for inserting a seedling, and is parallel to the long side part at a position avoiding the planting hole opening on the surface, One or more bag bodies are formed which have openings on the side of the section and whose inside communicates with the space between the front and back sheets. The back sheet is impervious to water and has a permeable root portion that opens when time elapses from the time of installation.

  The back sheet may be formed by integrating separate back pieces and intermediate strips at a connecting portion, and forming the strips with a biodegradable material.

Backing sheet is constituted from each other back piece and intermediate strip, backing piece and the band pieces other than the connecting portion becomes non-integral part, the biodegradable fibers said non-integrated portion as a translucent root May be closed.

  The back sheet is composed of separate back pieces, both back pieces have a polymerized part, and the non-integrated part excluding the joint part of the polymerized part may be closed with a biodegradable thread as a transparent root part. .

  The back sheet may have a slit, and the slit may be closed with a biodegradable thread as a penetrating root.

  The front sheet is composed of a main part and an additional part, the main part is trapezoidal and has the planting hole opening, and the edge of the additional part overlaps with the long side edge or the short side edge of the main part. A trapezoid following the main portion may be formed, and the bag body may be formed of this polymerization portion.

  The additional portion may include a lid portion that closes the space by fixing the free end to the back sheet in a state in which the culture medium is filled in the space, and serves as a short side portion of the front sheet.

  The interior of the bag body may be communicated with the space by a water passage hole provided in the front sheet on the side opposite to the opening.

  What connects the inside of the bag body to the space may be a stitched portion provided in the front sheet on the side opposite to the opening.

  A heat insulating material may be interposed between the front and back sheets.

  A protective material having water resistance may be interposed between the front and back sheets.

  Ear pieces may be provided on both edges of the planting hole opening.

  One of the ear pieces may be longer than the other.

  The pavement planting bag according to the present invention is filled with cultivated soil, embedded with seedlings in the cultivated soil through the planting hole opening, and the long side portion is arranged on the upper side with the central portion of the bag raised, Use it by placing it on the slope. In this use state, the long side portion arranged on the upper side serves as a frontage for guiding the water flowing along the slope surface to the bag surface. On the other hand, on the bag surface, a water channel is formed which gradually narrows from the long side portion toward the short side portion arranged on the lower side and is sandwiched by the peripheral edge portion of the back sheet. And the water introduce | transduced from the wide frontage is collected along the water channel of the bag surface, and will be efficiently collect | recovered with a bag body. Therefore, it is possible to collect sufficient water even on a slope with a gentle slope.

  In addition, by arranging the long side portion on the upper side, the overgrowth of the upper weed around the seedling can be particularly suppressed. Since weeds that have grown taller hang their heads down the slope, most of the weeds that cover the seedlings grew above the seedlings. Therefore, if the weeds on the upper side around the seedlings are mainly suppressed, growth failure of the seedlings can be effectively prevented. At this time, by making the shape of the bag trapezoidal, only the upper ground around the seedling can be covered widely without enlarging the entire bag. Therefore, it is possible to effectively prevent the seedling from growing poorly without reducing the workability.

  Furthermore, this pavement planting bag has water retention by being entirely composed of a water-impermeable sheet, and has a permeable root portion that opens on the back sheet when time elapses from the time of installation. Thus, as the seedling grows, the seedling has a gap that allows its roots to extend on the slope. Therefore, it is possible to maintain an appropriate growth environment according to the growth of the seedlings.

When the back sheet is formed by integrating the separate back pieces and intermediate strips at the connecting portion and the strips are made of a biodegradable material, the strips corrode over time to form an open part. . Therefore, if this strip is made to be a transparent root portion, the transparent root portion that opens when time elapses from the time of installation can be formed very easily. Moreover, even if the strip is not composed of a biodegradable material, if the non-integrated portion other than the connecting portion between the back strip and the strip is made a non-integrated portion and the non-integrated portion is closed with a biodegradable thread, the passage of time biodegradable yarn non integral unit which has been blocked those initial corrosion is opened with. Accordingly, the if the non-integrated portion so that such a Torune portion, can be extremely easily formed Torune unit to open the time from the time of installation has elapsed.

In addition, when the back sheet is composed of only separate back pieces, and both back pieces have a polymerized part, when the non-integrated part excluding the joint part of the polymerized part is closed with a biodegradable thread, the passage of time biodegradable yarn non integral unit which has been blocked those initial corrosion is opened with. Furthermore, if the back sheet having a slit be one single, closing the slit in biodegradable yarns, slit biodegradable yarn has been blocked those first corroded with the passage of time to open . Therefore, if these non-integrated portions or slits become the root portion, the root portion that opens when time elapses from the time of installation can be formed very easily.

  When the front sheet is composed of the main part and the additional part, and the bag body is formed by the overlapping portion of the edge of the additional part and the long side edge or the short side edge of the main part, the belt material is fixed to the front sheet and the bag body is fixed. The bag can be easily formed as compared with the case of forming.

  In addition, if the additional part has a lid filled with culture soil in the space, the free end is fixed to the back sheet, closes the space, and has a cover part that becomes the short side of the front sheet, the culture medium is filled. The bag in the closed state can be easily closed, and the manufacturing process can be shortened and the cost can be reduced.

  When the inside of the bag body is communicated with the space between the sheets through the water holes provided in the front sheet on the side opposite to the opening, a relatively large amount of water can be efficiently guided to the inside of the bag body. This is effective when the amount of water needs to be increased.

  On the other hand, when the inside of the bag body is communicated with the space between the sheets at the stitching portion provided on the front sheet on the side opposite to the opening, when forming the bag body by sewing the constituent material of the bag body to the front sheet, The formation of the bag body and the formation of the communication portion to the internal space can be performed at the same time, and the manufacturing process can be shortened and the cost can be reduced.

  When a heat insulating material is interposed between the front and back sheets, heat from the outside can be blocked, and the temperature rise inside the bag during the summer can be suppressed.

  When a protective material having water resistance is interposed between the front and back sheets, the culture medium filled in the bag is used for inserting seedlings during transportation work by filling the culture medium between the protective material and the back sheet. Spilling from the planting hole opening can be prevented. In addition, when both a heat insulating material and a protective material are interposed, it is preferable to interpose a protective material between a heat insulating material and a back sheet | seat in consideration of the workability | operativity etc. which fill culture medium. The protective material is preferably a laminated kraft paper or a thin film that can be easily broken only by a human hand without using a cutter knife.

  When the ear pieces are provided at both edges of the planting hole opening, weeds are prevented from growing over the planting hole opening by inserting the seedlings and then bonding the ear pieces with staples so as to sandwich the seedlings. it can.

  Also, if one of the ear pieces is longer than the other, when the ear pieces are bonded together so as to sandwich the seedling after insertion of the seedling, the edge of the other ear piece is covered with the long ear piece. By laminating and bonding the layers, weed seeds can be prevented from entering the gaps between the ear pieces, and weeds can be more effectively prevented from growing in the planting hole openings.

  In FIGS. 1-6, the specific example of the bag for slope surface planting concerning this invention is shown. FIG. 1 shows the same pavement planting bag in a state in which no soil is filled, (a) is a front view, and (b) is a rear view. FIG. 2 is a perspective view showing a use state of the same slope surface planting bag. 3 and 4 are sectional views taken along lines AA and BB in FIG. 5 and 6 show the state of the planting hole opening when the seedling is embedded in the soil, and are cross-sectional views along the line CC and line DD in FIG.

The pouch surface planting bag 10 includes a front sheet 1 and a back sheet in a state in which the side edges 3 and the long edges 5 of the trapezoidal front sheet 1 are covered with the peripheral edge 2 a of the back sheet 2 larger than the front sheet 1. 2 is a trapezoid which is stitched and integrated at the overlapping portion. In FIGS. 1 and 2, the stitched portion is indicated by a broken line with a wide interval.
The front sheet 1 is impermeable and has a planting hole opening 7 for inserting a seedling 12. In addition, between the front and back sheets 1 and 2, which is parallel to the long side part 5 and has an opening p on the long side part 5 side at a position on the surface of the front sheet 1 avoiding the planting hole opening part 7. One or more bag bodies 8 communicating with the space s are formed.
The back sheet 2 is impermeable and includes a permeable root portion 6 that opens when time elapses from the time of installation.
The pouch 10 is filled with the cultivating soil 11, the seedlings 12 are embedded in the cultivating soil 11 through the planting hole opening 7, and the long side portion 5 is on the upper side in a state where the central portion of the bag is raised. It is used by placing it on the slope so that it can be placed.

  According to this slope surface planting bag 10, in the use state, the long side portion 5 arranged on the upper side serves as a frontage for guiding the water flowing along the slope surface to the bag surface. On the other hand, on the bag surface, a water channel is formed which gradually becomes narrower from the long side portion 5 toward the short side portion 4 disposed on the lower side and is sandwiched by the peripheral edge portion 2 a of the back sheet 2. And the water introduced from the wide frontage is collected along the water channel of the bag surface, and is efficiently collected by the bag body 8. Therefore, sufficient water collection is possible even on a slope with a gentle slope.

  In addition, by arranging the long side portion 5 on the upper side, it is possible to suppress the overgrowth of the upper weed around the seedling 12 in particular. Therefore, the growth failure of the seedling 12 can be effectively prevented. At this time, by making the shape of the bag trapezoidal, only the upper ground around the seedling 12 can be covered widely without enlarging the entire bag. Therefore, the growth failure of the seedling 12 can be effectively prevented without reducing the workability.

  Furthermore, this pouch surface planting bag 10 has a water retentivity by being entirely composed of a water-impermeable sheet, and has a transparent root portion 6 that opens when time elapses from the time of installation on the back sheet 2. By providing, as the sapling 12 grows, the sapling 12 has a gap that allows its roots to extend on the slope. Therefore, an appropriate growth environment according to the growth of the seedling 12 can be maintained.

The back sheet 2 is formed by integrating separate back pieces 21 and 22 and an intermediate band piece 26 with a connecting portion 27, and the band piece 26 is made of a biodegradable material.
In this case, the strip 26 corrodes with time and forms an open portion. Therefore, if the strip 26 becomes the transparent root portion 6, the transparent root portion 6 that opens after a lapse of time can be formed very easily.

The transparent root portion 6 may be in other modes. Figure 7-9 shows a specific example of another embodiment of the back sheet. For example, as shown in FIG. 7, instead of the strip 26 made of a biodegradable material, the back strip 2 is composed of separate back strips 21 and 22 and an intermediate strip 26. The non-integrated portion 28 other than the connecting portion 27 between the back pieces 21 and 22 and the strip 26 may be used, and the non-integrated portion 28 may be closed with the biodegradable thread 25 as the transparent root portion 6. In addition, as shown in FIG. 8, when the back sheet 2 is not provided with the strip 26 and is composed only of the separate back pieces 21 and 22, and both the back pieces 21 and 22 have the overlapping portion 23, The non-integrated portion 24 excluding the connecting portion 27 may be closed with the biodegradable thread 25 as the transparent root portion 6. Further, as shown in FIG. 9, even when the back sheet 2 is a single sheet, when the slit sheet 20 is provided, the slit 20 may be closed with the biodegradable thread 25 as the through-hole portion 6.
In these cases, back piece and strip of non-integrated portion 28 which biodegradable yarn 25 has been blocked those first corroded with the passage of time, the non-integrated portion 24 or the slit 20 of the overlapping portion is opened. Therefore, if the non-integrated portion 28, the non-integrated portion 24, or the slit 20 becomes the transparent root portion 6, the transparent root portion 6 that opens after a lapse of time can be formed very easily.

The front sheet 1 includes a main portion 1a and an additional portion 1b. The main part 1a has a trapezoidal shape and has a planting hole opening 7, and the additional part 1b has a trapezoid shape in which the edge overlaps the long side edge 5a or the short side edge 4a of the main part 1a and continues to the main part 1a. And the bag body 8 is formed in this superposition | polymerization part.
In this case, the bag body 8 can be easily formed as compared with the case where the bag body 8 is formed by fixing the band material to the front sheet 1. In addition, although the front sheet | seat 1 of this bag 10 for slope surface planting has the addition parts 1b and 1b on the both sides of the long side edge 5a side and the short side edge 4a side of the main part 1a, according to a use condition. Either one of them may be used.

Of the two additional portions 1b and 1b, the one that is superposed on the short edge 4a has the free end fixed to the back sheet 2 in a state where the soil 11 is filled in the space s to close the space s. A lid portion 17 that becomes the side portion 4 is provided.
In this case, the bag in the state filled with the soil 11 can be easily closed, and the manufacturing process can be shortened and the cost can be reduced.

The main portion 1a and the additional portion 1b are sewn at a position opposite to the opening p of the bag body 8 formed by the overlapped portion. And the stitching | suture part 9 'connects the inside of the bag body 8 to the space s.
In this case, when the bag body 8 is formed, the bag body 8 and the communicating portion to the space s can be formed at the same time, so that the manufacturing process can be shortened and the cost can be reduced.

Further, the inside of the bag body 8 communicates with the space s also by a water passage hole 9 provided in the front sheet 1 on the side opposite to the opening p.
In this case, since a relatively large amount of water can be efficiently guided to the inside of the bag body, it is effective particularly when the amount of collected water needs to be increased.

A heat insulating material 13 is interposed between the front and back sheets 1 and 2.
In this case, heat from the outside can be blocked, and the temperature rise inside the bag during the summer can be suppressed. However, it is preferable to adjust the thickness of the heat insulating material to an appropriate value in order to avoid that the amount of heat trapped inside the bag becomes larger than the amount of heat dissipated. An appropriate thickness is, for example, about 5 mm for 20 liters of soil when the material is PP.

Laminated kraft paper is interposed between the front and back sheets 1 and 2 as a protective material 14 having water resistance.
In this case, by filling the culture medium 11 between the protective material 14 and the back sheet 2, the culture medium 11 filled in the bag spills from the planting hole opening 7 for inserting the seedlings 12 during the transporting operation. Can be prevented. In addition, although both the heat insulating material 13 and the protective material 14 are interposed in this slope surface planting bag 10, the workability etc. which fill the cultivation soil 11 are considered, and the protective material 14 is the heat insulating material 13. And the back sheet 2 are interposed. In addition, by using laminated kraft paper as a protective material, it can be easily broken only by human hands without using a cutter knife or the like.

  The edge of the protective material 14 on the long side portion 5 side is integrally fixed to the main portion 1a together with the additional portion 1b at the long side edge 5a side sewing portion 9 'of the main portion 1a. Thus, by comprising the front sheet | seat 1 by a some sheet | seat, it becomes possible to fix the protective material 14 to the front sheet | seat 1 simultaneously with forming the bag body 8 easily.

  On the other hand, the heat insulating material 13 is not sewn and fixed to the front sheet 1 and is movable between the front sheet 1 and the protective material 14. However, the heat insulating material 13 may be sewn to the front sheet 1 according to workability and manufacturing process.

The main portion 1a is formed by abutting an ear piece 15 formed by folding back two opposing edges of a pair and joining in the vicinity of the long side edge 5a and the short side edge 4a. And the part which the edge part of both abutted but not joined forms the planting hole opening part 7. FIG.
In this case, it is possible to prevent weeds from growing in the planting hole opening 7 by adhering the ear pieces 15 with staples or the like so as to sandwich the seedling 12 after the seedling 12 is inserted.

One end 15a of the ear piece 15 is longer than the other 15b.
In this case, when the ear pieces 15 are bonded to each other so as to sandwich the seedling 12, the ear piece 15 of the ear piece 15 is bonded by covering the edge of the other ear piece 15b with the long ear piece 15a and overlapping the three pieces. It is possible to prevent weed seeds from entering the gap and more effectively prevent weeds from growing in the planting hole opening 7.

  In addition, since the center part of the planting hole opening part 7 is occupied by the trunk of the seedling 12, this bag 10 for planting the ground surface has three ear pieces 15a and ear pieces 15b only at both end parts of the planting hole opening part 7. They are stacked and bonded together. However, when it is necessary to further increase the effect of preventing weed overgrowth, for example, as shown in FIG. 10, a notch 15c passing through the trunk of the seedling 12 is inserted in the center of the ear piece 15a to cover the ear piece 15b. The possible range may be widened.

The specific example of the bag for a slope surface planting concerning this invention is shown in the state which is not filled with cultivation soil, (a) is a front view, (b) is a rear view. It is a slope view which shows the use condition of the bag for the same slope surface planting. It is sectional drawing along the AA arrow line of FIG. It is sectional drawing along the BB arrow line of FIG. FIG. 3 is a cross-sectional view taken along the line CC in FIG. 2. It is sectional drawing along the DD arrow line of FIG. It is a rear view which shows the other aspect of a back sheet. It is a rear view which shows the other aspect of a back sheet. It is a rear view which shows the other aspect of a back sheet. It is a perspective view which shows the other aspect of an ear piece.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Front sheet | seat 1a Main part 1b Additional part 2 Back sheet 2a Peripheral part 3 Side part 4 Short side part 4a Short side edge 5 Long side part 5a Long side edge 6 Perforated root part 7 Planting hole opening part 8 Bag body 9 Water passage 9 'Suture part 11 Culture soil 12 Sapling 13 Heat insulating material 14 Protective material 15, 15a, 15b Ear piece 17 Lid part 20 Slit 21, 22 Back piece 23 Superposition part 24 Non-integrated part 25 Biodegradable thread 26 Band piece 27 Tie part 28 Non-integrated part p Opening s Space

Claims (13)

In a state where the side edge (3) and the long side edge (5) of the trapezoidal front sheet (1) are covered with the peripheral edge (2a) of the back sheet (2) larger than the front sheet (1). (1) and the back sheet (2) are integrated into a trapezoid,
The front sheet (1) is impermeable, has a planting hole opening (7) for inserting a seedling (12), and is in a position avoiding the planting hole opening (7) on the surface thereof. , Parallel to the long side portion (5), having an opening (p) on the long side portion (5) side, and the inside communicating with a space (s) between the front and back sheets (1, 2) One or more bags (8) are formed,
The back sheet (2) is impermeable and has a permeable root (6) that opens after a lapse of time from the time of installation.   The back sheet (2) is formed by integrating separate back pieces (21, 22) and an intermediate strip (26) at a connecting portion (27), and the strip (26) is made of a biodegradable material. The bag for planting a slope according to claim 1. The back sheet (2) is composed of separate back pieces (21, 22) and an intermediate strip (26), and the back pieces (21, 22) and the strip (26) are joined portions (27). except a non-integrated section (28), and the non-integrated section (28) slopes planting of claim 1 which is closed in the biodegradable yarns as translucent root (6) (25) bag.   The back sheet (2) is composed of separate back pieces (21, 22), and both back pieces (21, 22) have overlapping portions (23), and the connecting portions (27) of the overlapping portions (23). The non-integrated part (24) excluding the base part is closed with a biodegradable thread (25) as a transparent root part (6).   The back sheet (2) has a slit (20), and the slit (20) is closed with a biodegradable thread (25) as a transparent root (6). bag.   The front sheet (1) is composed of a main part (1a) and an additional part (1b), the main part (1a) is trapezoidal and has the planting hole opening (7), and the additional part (1b) The edge overlaps with the long side edge (5a) or the short side edge (4a) of the main part (1a) to form a trapezoid following the main part (1a), and the bag body (8) is the overlapping part. The bag for planting a slope surface as described in any one of Claims 1-5 currently formed. The additional portion (1 b ) has its free end fixed to the back sheet (2) with the soil (11) filled in the space (s) to close the space (s), and the front sheet ( The bag for planting a slope according to claim 6, further comprising a lid portion (17) which becomes the short side portion (4) of 1).   It is a water passage hole (9) provided in the front sheet (1) on the opposite side of the opening (p) that allows the interior of the bag body (8) to communicate with the space (s). The bag for planting a slope according to any one of the items.   The seam (9 ') provided in the front sheet (1) on the opposite side of the opening (p) communicates the inside of the bag (8) with the space (s). The bag for planting a slope according to any one of the items.   The pavement planting bag according to any one of claims 1 to 9, wherein a heat insulating material (13) is interposed between the front and back sheets (1, 2).   The pavement planting bag according to any one of claims 1 to 10, wherein a protective material (14) having moisture resistance is interposed between the front and back sheets (1, 2).   The pavement planting bag according to any one of claims 1 to 11, comprising ear pieces (15) on both edges of the planting hole opening (7). 13. The slope planting bag according to claim 12, wherein one (15a) of the ear piece (15) is longer than the other (15b).

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