JPS609431A - Sunshade sheet for culturing agricultural crop - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a shade sheet for cultivating agricultural products.

Conventionally, the fabric used for this super-fast sunshade is generally a woven fabric woven with flat threads made of water-resistant synthetic resin such as polyethylene. This woven cloth is sewn together to cover a large cultivation area, and because it is supported by overhead wires stretched between the pillars, the cloth has poor breathability, which can hinder the growth of crops due to stuffiness, and can also cause wind. Awnings with sunburns tend to heat up the fabric and cause damage to the fabric. On the other hand, when it rains, odors tend to accumulate, and the accumulated water inevitably falls in a concentrated manner, leaving the area where the water falls, or the area of precipitation becoming uneven, causing water shortages on crops.

Another point to note is that no matter how much shade is needed, if a certain amount of strong sunlight is not allowed to grow crops, disease bacteria will occur in the soil and hinder the growth of crops. However, it is only better than the conventional woven sheath.

The shade cloth of the present invention dramatically eliminates the above-mentioned drawbacks. In other words, the awning has a moderate combination of light-blocking properties and light-letting properties, which are contradictory to the functions of cloth, and by doing so, we have succeeded in naturally improving ventilation and water permeability. be.

In order to exhibit the above-mentioned characteristics, the sheet structure of the solar shade of the present invention has an unstructured portion consisting only of warp yarns in the longitudinal direction of the sheet so that the sheet surface does not have a uniform quality with constant voids such as a fabric or a sash. A long length is provided, and at the joints, narrow strips are installed in the horizontal direction to prevent the warp threads from coming apart.C And when the awning is used as a sheet,
When the warp threads in the non-structured part sway in the wind, the idea is to irradiate the ground surface with a moderate amount of direct light from the gaps without being biased to a certain area. Even if it is a woven body, a welded stick of a film, or a sewn body, it does not deviate from the idea of the present invention.

FIG. 1 shows a first embodiment of the date sheet of the present invention. 1
．． 1... The warp is a flat yarn made of synthetic resin such as polyethylene and has a thread width of 7 to 14 meters (2200 to 5000 denier), and is black, red, blue, or green.

It is a tape-shaped thread body colored in a color suitable for cultivated crop C, such as yellow or silver. 2, 2... are weft yarns that are made of almost the same material and shape as the warp yarns. These warp threads 1 and weft threads 2 are woven into a plain weave structure over a narrow width of approximately 10 cm, and a pruning thread S is placed on the edge of the selvage to prevent fraying, or the weft thread end is A folded tank ear 'T is provided.

The narrow part woven in this way exists as if it were a tidying belt W of the warp threads that continues into the next one. K is a non-textured part consisting only of warp threads, and is made by winding only the warp threads during weaving without inserting a suitable length of more than 1 m. Therefore, the short W and long K can be sequentially repeated to produce a sheet with high efficiency.

Next, a second embodiment is shown in FIG. 2 and will be described. The structure of the straightening belt W of this embodiment is that thermosetting synthetic resin films 20, 20 cut into thin strips are arranged in sheets instead of weft threads, and warp threads 1, 1... are arranged from the front and back of the group. The pieces are sandwiched and pressed together, heated and pressed to make them explode and form a durable strap W.

Next, a third embodiment is shown in FIG. 4 and will be described. In this example, a colored synthetic resin film-like sheet 10 is cut into a film t [in the hand direction by a length K of a tape-like l over the entire width of the film using a slitter 11, as if K
The part 1. After slitting the OK length, which has the form of a non-textured portion of only the warp threads, similar to the second embodiment, the slitter 11 is withdrawn, and the length to be left in the form of a film is the first. The width is maintained at about three times the width corresponding to the part of the throttling belt W in the second embodiment. And the length F that will not be slit
Fold it in thirds as shown in B and sew it together using a sewing machine S to make a reinforced strap W. In each example, the symbol indicates the sheet width.

The awning sheet of the present invention has the structure as described above, and its use is shown and explained in FIG. 5. The three sheets are slightly overlapped at the edges of each sheet, and the overlapping sections of the band are sewn together in a W-shape using a sewing machine and strongly sewn together to create a sheet for a vast awning. The number and length of the sheets to be used are determined as appropriate depending on the area to be covered. The sheet is sewn into a large single piece of awning, and the sheet is connected to wires 5, 5, which are strung from pillars 4, 4, etc., which are driven into the ground, using suitable hooks, clips, or other connecting devices 6. It is tied to the ground and placed in a horizontal position suspended at a height of about 2nl above the ground.

In this state, when there is almost no wind, the degree of light shielding is high and the interior is dark, and when the wind blows, the warp of the tissue-free part sways and sunlight shines directly through the gaps.It also blocks ventilation at that time. do not have. Furthermore, even when it rains, rainwater flows through the non-organized areas without accumulating and rains evenly.

The present invention consists of a non-textured portion consisting only of warp yarns, in which tape-like threads extending in the longitudinal direction of a colored synthetic resin sheet are arranged over the entire width of the sheet, and a subsequent non-textured portion consisting only of warp yarns. Since the sheet is formed with a narrow strip interposed in the middle of the sheet across the entire width of the sheet, it is possible to avoid the poor air permeability, poor water permeability, and poor light shielding and daylighting properties seen in the conventional light shielding sheet described in detail at the beginning. The purpose of the present invention is to solve these contradictory problems at the same time through the action of a tape-like filament that forms a colored non-organized part, and to create an excellent product that prevents agricultural products from becoming stuffy, draining water, and causing disease. It has a cultivation effect. Also, sunshades have the advantage of high productivity and low cost when attached to sheet manufacturing.

[Brief explanation of the drawing]

FIG. 1 is an overall plan view showing a first embodiment of the sun protection sheet of the present invention, FIG. 2 is an overall plan view showing a second embodiment, and FIG. 3 is a vertical sectional view of FIG. 2. FIG. 4 is a schematic perspective view showing the third embodiment, and FIG. 5 is an explanatory view showing the state of use. 1... Tape-like thread body K... Non-textured portion of warp only L/Sheet width W... Applicant of the bandage: Daio Kasei Co., Ltd. Calculation 2

Claims (1)

[Claims] A tape-like thread body made of a colored synthetic resin sheet and extending in the longitudinal direction is arranged over the entire width of the sheet between a non-textured part made of only warp yarns and the following non-textured part made of only warp yarns. A sheet is a sunshade for cultivating crops that has a narrow strip interposed across the entire width of the sheet.