JPH11318232A - Covering sheet - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a covering sheet having various functions such as grass- proofing one, in particular high air-and water permeability as well, intended for regulating plant growth environment through covering on the ground such as in the case of a mulching sheet. SOLUTION: This covering sheet 1 is such one as to be made by plain weaving of warps and wefts; wherein there are provided a plurality of raised coarse weaves 2 in such a manner that a plurality of warps in close proximity to one another and a plurality of wefts in close proximity to one another do not cross with each other, respectively, resulting in improving the air-and water permeability of the final covering sheet; furthermore, the coarse weaves 2 are composed of smaller ones mainly designed to improve the air-and water permeability and/or larger ones especially designed to be made suitable for the seeding and planting operations.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cover sheet used for covering the surface of soil in agriculture, forestry and civil engineering, for example, for controlling the growth environment of plants. The present invention relates to a cover sheet having functions and a wide range of uses, and particularly having excellent air permeability and water permeability.

[0002]

2. Description of the Related Art In addition to the above-mentioned cover sheet made of one sheet of vinyl, there is a cover sheet woven with flat yarn. In general, plain weave, twill weave,
Although there is a satin weave or the like, the above-mentioned coated sheet is formed of a plain weave in which the warp and the weft are closely interlaced. This is because it is strong against vertical and horizontal pulls. However, in the cover sheet formed by this plain weave, since the warp and the weft are closely interlaced one by one, the water permeability and the air permeability may not be sufficient, for example, when used in a rainy season.

There is a multi-sheet as an example of a covering sheet for agriculture. This multi-sheet is generally constituted by one vinyl sheet, and is used with a hole when used. However, since the operation of drilling holes is troublesome, for example, the one disclosed in Japanese Utility Model Laid-Open No. 55-99659 has been devised. This is made by arranging two long sheets at predetermined intervals and connecting them in a cord-like manner with a linear connecting material. Plants are planted through gaps between the connecting materials.

[0004] However, an interval suitable for planting a plant must be obtained by an operator at the time of work. In addition, since the tie material is provided over the entire width, a foot may be taken off during the work, or the plant may be damaged, The workability is poor because the laid sheet is peeled off, and furthermore, since the connecting material is merely riding on the ground, the effect of shading or the like is low and the intended purpose is hardly achieved.

[0005]

SUMMARY OF THE INVENTION Accordingly, the present invention provides a structure in which a warp and a weft do not intersect.
To be able to aim at improvement of breathability water permeability,
The main task is to provide a covering sheet that facilitates planting and sowing work of plants.

Means for achieving this is a covering sheet formed by combining warps and wefts into a sheet, and a plurality of adjacent warps and a plurality of adjacent wefts float on the covering sheet without intersecting. Characterized in that it is a cover sheet formed with a plurality of rough woven portions. In addition, when the coarsely-woven portion is formed small by setting a portion that floats without intersecting so as to be able to slightly roughen the surface, and is formed over the entire covering sheet, it is mainly suitable for improving air permeability and water permeability. ing.

In addition, the coarsely woven portion is formed so as to be large so that a portion floating without intersecting is set long so as to be able to plant or sow a plant, and the coarsely woven portion is formed corresponding to a predetermined interval for planting a plant. Then, especially the work of planting and sowing the plant can be facilitated.

Further, the coarsely woven portion comprises a small coarsely woven portion having a short floating portion without interlacing and a large coarsely woven portion having a long floating portion without interlacing. May be formed over the entire covering sheet, and the large woven portion may be formed at a predetermined interval for planting.

[0009]

According to the above construction, a plurality of adjacent warp yarns and a plurality of adjacent weft yarns form a loosely woven portion without intersecting with each other. And weft yarns can be improved as compared to the case where they are closely interlaced one by one. In addition, since there is a difference in appearance between the coarsely woven portion and the non-coarse woven portion, it becomes a pattern and the design feeling can be improved.

[0010] In the second aspect, the surface of the coarsely woven portion can be slightly roughened at a portion floating without intersecting, in other words, the contact resistance with air or water is increased to improve air permeability and water permeability. When the cover sheet is formed to be short and small so that it can be improved and formed over the entire cover sheet, it is suitable mainly for the improvement of the air permeability as described above.

[0011] Further, the coarsely woven portion according to claim 3 is
If the floating portion is set long so that planting or sowing is possible without crossing and formed to correspond to a predetermined interval for planting, air permeability and water permeability are improved, and plant Planting and sowing work can be facilitated.

In addition, the warp and the weft that do not intersect have a size necessary for planting and sowing plants, so that the linear body is not unnecessarily exposed.
The worker is not tripped during the operation. Therefore, the work is easy without peeling off the laid cover sheet or damaging the plant. In addition, since it has a perfect sheet shape except for the coarse weave,
There are sufficient effects such as light shielding, and the intended purpose function can be exhibited.

Further, the coarsely woven portion is constituted by a small coarsely woven portion having a short floating portion without interlacing and a large coarsely woven portion having a long floating portion without interlacing, When the small coarse woven portion is formed over the entire covering sheet and the large coarse woven portion is formed corresponding to a predetermined interval for planting a plant, a covering sheet satisfying all the above-mentioned effects can be obtained.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a front view showing the appearance of a covering sheet 1 (hereinafter, referred to as a sheet) laid on the ground in agriculture, forestry and civil engineering.

The sheet 1 is laid under a potted plant, for example, to prevent splashing of mud during rainfall in a pot, or laid on a ridge, a forest floor, or an orchard arable land to prevent grass and mud. Used for prevention, laid in orchard arable land to prevent arable land from being washed away by heavy rain, used for civil engineering to stabilize soft ground, and used for greening slopes And particularly excellent in air permeability and water permeability.

That is, the sheet 1 is formed by flat weaving, for example, a flat yarn made of polypropylene, polyethylene, or the like, into a long shape having a predetermined width, and forms a large number of small coarsely woven portions 2. The color of the flat yarn is selected according to the purpose of use, such as dark color for the purpose of weed control.

As shown in FIG. 2, the small coarsely woven portions 2 are portions where a plurality of adjacent warp yarns 3 and a plurality of adjacent weft yarns 4 float without intersecting. The portion floating without intersecting is a small coarse weave portion which is set to be short so that the surface of the sheet 1 can be slightly roughened. If they are floated without intersecting, the warp yarns 3 and / or the weft yarns 4...

The term "short enough to allow the surface of the sheet 1 to be slightly roughened" means, in other words, a length capable of increasing contact resistance with air or water and improving air permeability and water permeability. Although it depends on the width, the warp 3 slightly jumps the weft 4 and the weft 4 slightly jumps the warp 3. For example, the thread width is 1mm ~ 3mm
In this case, about 3 to 7 pieces may be sufficient.

FIG. 2 is a front view for explaining the structure of an example of the small coarsely woven portion 2. The small coarsely woven portion 2 has a single warp 3a.
And five other wefts 4a, 4b, 4c, 4d, and 4e are continuously blown on the front surface side with another warp 3b which is adjacent to the warp 3a with one warp 3c therebetween. The two warp yarns 3c and 3d immediately adjacent to these two warp yarns 3a and 3b also have five weft yarns 4a and
4b, 4c, 4d, and 4e are skipped continuously. Further, the five wefts 4a to 4e which have been blown by the four warps 3a, 3b, 3c, 3d are arranged such that the four warps 3a to 3d are arranged two by two on the front and back, respectively. Try not to mix. In FIG. 2, the warps 3a to 3d
Is indicated by diagonal lines.

In this manner, the single skipped warps 3a to 3a
Instead of floating two d's at a time, for example, two warps 3a and 3c, 3b and 3d immediately adjacent to each other may be floated.

Due to the presence of the small coarsely woven portions 2, the smooth surface of the sheet 1 is roughened because of the plain weave, so that the contact resistance with air and water is increased, the air permeability and water permeability are improved, and the appearance is improved by the unevenness. Also makes a difference. For this reason, the small coarse weave section 2
By appropriately setting the size, shape, number, arrangement, and the like of..., The design feeling can be improved. Also, because it is formed of plain weave,
Strong against vertical and horizontal pull.

FIG. 3 is a front view showing the appearance of a sheet 1 according to another example. The sheet 1 is particularly suitable for use as a multi-sheet. That is, a large number of large woven portions 5,... Where a plant can be planted or sowed, are formed at predetermined intervals.

As shown in FIG. 4, the large coarse woven portions 5 are portions where a plurality of adjacent warps 3e and a plurality of adjacent wefts 4f float without intersecting. In particular, the floating portion without intersecting is formed long so that planting and sowing can be performed. The term “long” means that a large number of the warp yarns 3 and the weft yarns 4 are skipped, though depending on the widths of the warp yarns 3 and the weft yarns 4. Specifically, for example, when the yarn width is about 1 mm to 3 mm, about 10 to 30 threads may be used. If it is too large and exceeds, for example, 7 cm or 8 cm, the part floating from the surface becomes large and it becomes easy to catch a foot during work.

FIG. 4 is a plan view for explaining the structure of an example of the large coarse weave portion 5. This large coarse weave portion 5 is composed of an even number of adjacent warp yarns 3e and a large number of weft yarns 4f. , And all the corresponding weft yarns 4f.

Since the large coarse woven portion 5 has a structure in which yarns are stretched in the vertical and horizontal directions, it is strong against tensile in the vertical and horizontal directions, and is almost in the same state as a hole is opened. As well as being high, seeds, seedlings and bulbs can be planted even after the sheet is laid. If necessary for planting seedlings and bulbs, the warp 3e ... and the weft 4f ... are separated on the front and back of the sheet 1, so that the warp 3e ... is cut by inserting a pinch across the warp 3e ... , And by inserting a pinch across the weft 4f.
f ... can be cut and a shaped hole can be easily formed.

FIG. 5 is a front view showing the appearance of a sheet 1 according to another example. This sheet 1 is also particularly suitable for use as a multi-sheet. That is, a large number of large woven portions 5,... Where a plant can be planted or sowed, are formed at predetermined intervals. And on top of that,
Like the sheet 1 of the first embodiment described above, a large number of small coarse woven portions 2 are formed over the entire sheet 1 in order to improve air permeability and water permeability. The structures of the large coarse weave portions 5 and the small coarse weave portions 2 are the same as those described above, and thus will not be described.

Since the sheet 1 is woven based on the weaving data inputted as appropriate, the size, position, arrangement, interval, number and the like of the small coarse woven portion 2 and the large coarse woven portion 5 can be freely set. And various sheets 1 can be obtained.

FIGS. 6 and 7 show an example of the use state of the seat 1. FIG. FIG. 6 shows an example of a use state of the sheet 1 shown in FIG. 1. When growing a potted plant in a greenhouse or the like, the sheet 1 is laid on the ground 6 as shown in FIG. When arranged, it is possible to prevent the falling water from hitting the ground 6 and jumping up and adhering to the peripheral surface of the bowls 7 and becoming dirty. This is because the water that has fallen hits the sheet 1 and rebounds, but does not touch the soil. Then, the water that has hit the sheet 1 permeates the ground 6 through the entire sheet 1, especially the small coarse weave section 2. Further, if the sheet 1 is provided with a light-shielding property, a grass-proof effect can be obtained.

Further, the sheet 1 may be laid in a walking place such as a passage in a greenhouse or a ridge in a rice field. In this case, since the water on the sheet 1 permeates downward due to the water permeability of the sheet 1, it can be used to prevent mud (sludge) in the passage. In the case of laying in a furrow, the light shielding property of the sheet 1 has a great merit due to the herbicidal effect.

Similarly, by laying it on a forest floor to obtain a weed control effect, or by laying it on cultivated land in an orchard formed on a slope, it is possible to prevent cultivated land from being washed away even by heavy rain.

Further, by forming a large number of small coarsely woven portions 2 and extending the plants from the small coarsely woven portions 2, it is possible to appropriately green the slopes of highways and the like.

Further, it can be used as a multi-sheet. However, it is necessary to make a separate hole at the position where seeds are to be planted or where plants are to be planted.

FIG. 7 is a perspective view showing an example of a use state of the sheet 1 shown in FIGS. 3 and 5, in which the plants grow from the large coarse weave portions 5. That is, after laying the sheet 1 on the ground 6 where plants are grown, the sheet 1
Seeds are seeded, and seedlings and bulbs are planted in the large coarse weave section 5. In sowing and planting, the large coarse woven portion 5 is configured such that the warp 3 and the weft 4 are stretched in the vertical and horizontal directions. If necessary, the warp yarn 3 and the weft yarn 4 may be cut to form holes as described above. Also, a hole may be formed by making an appropriate cut during the operation.

Since the large coarse woven portions 5 are formed at predetermined intervals, the large coarse woven portions 5 are not considered during operation.
The work can be done easily and accurately. Further, since the portions other than the large coarse weave portion 5 are the same as those of the plain woven sheet, even when walking on it, there is no possibility of catching a foot, and the work can be performed smoothly in this respect. Furthermore, since the existence of the large coarse weave portion 5 can improve the air permeability and water permeability, the plant can be grown without damaging the soil,
In addition, weed prevention effect can be expected.

Further, by applying antibacterial treatment to the flat yarn constituting the warp 3 or the weft 4 or the woven sheet 1, a sheet 1 having excellent durability can be obtained, and the plant is protected from damage by bacteria and the like. Things come.

It should be noted that the small coarsely woven portion 2 in the above embodiment is
The large coarse woven portion 5 corresponds to the coarse woven portion in claim 1 of the present invention.

[Brief description of the drawings]

FIG. 1 is a front view showing the appearance of a covering sheet.

FIG. 2 is an explanatory view showing the structure of a small coarse weave portion.

FIG. 3 is a front view showing the appearance of a covering sheet.

FIG. 4 is an explanatory view showing the structure of a large coarse weave portion.

FIG. 5 is a front view showing the appearance of a covering sheet.

FIG. 6 is a perspective view showing an example of a use state.

FIG. 7 is a perspective view showing an example of a use state.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Cover sheet 2 ... Small coarse weave part 3, 3a, 3b, 3c, 3d, 3e ... Warp 4, 4a, 4b, 4c, 4d, 4e, 4f ... Weft yarn 5 ... Large coarse weave part

Claims (4)

[Claims] 1. A covering sheet woven into a sheet by combining warp and weft, wherein a plurality of adjacent warps and a plurality of adjacent wefts float on the covering sheet without intersecting. A cover sheet formed with a plurality of parts. 2. The covering sheet according to claim 1, wherein said coarsely woven portion is formed small by setting a portion floating without intersecting so as to be able to slightly roughen the surface, and is formed over the entire covering sheet. 3. The coarsely woven portion is formed large by setting a floating portion without intersecting so as to be long enough to plant or sow a plant, and forming the coarsely woven portion corresponding to a predetermined interval at which a plant is planted. The coated sheet according to claim 1. 4. The small woven portion, wherein the coarse woven portion comprises a small coarse woven portion having a short floating portion without interlacing and a large coarse woven portion having a long floating portion without interlacing. 2. The covering sheet according to claim 1, wherein the covering sheet is formed over the entire covering sheet, and the large coarse woven portion is formed corresponding to a predetermined interval for planting a plant.