JPH0131009Y2 - - Google Patents
Info
- Publication number
- JPH0131009Y2 JPH0131009Y2 JP1981192039U JP19203981U JPH0131009Y2 JP H0131009 Y2 JPH0131009 Y2 JP H0131009Y2 JP 1981192039 U JP1981192039 U JP 1981192039U JP 19203981 U JP19203981 U JP 19203981U JP H0131009 Y2 JPH0131009 Y2 JP H0131009Y2
- Authority
- JP
- Japan
- Prior art keywords
- ventilation holes
- sheet
- nonwoven fabric
- light
- wind pressure
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 238000009423 ventilation Methods 0.000 claims description 16
- 239000004745 nonwoven fabric Substances 0.000 claims description 5
- 239000012528 membrane Substances 0.000 description 3
- 230000035699 permeability Effects 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
- Y02A40/25—Greenhouse technology, e.g. cooling systems therefor
Landscapes
- Protection Of Plants (AREA)
- Greenhouses (AREA)
Description
【考案の詳細な説明】
従来、不織布を農用遮光シートとして用いるこ
とは公知であるが、この種の遮光シートはシート
自体の通気孔を開設することなく、単に目付量及
び厚みを調整によつてその遮光率及び通気率を特
定する形式に成るものが殆んどであつた。[Detailed description of the invention] Conventionally, it has been known to use nonwoven fabric as an agricultural shade sheet, but this type of shade sheet can be used simply by adjusting the basis weight and thickness without creating ventilation holes in the sheet itself. Most of them were in the form of specifying their shading rate and air permeability.
然しながら、不織布そのものは目の粗さが不規
則であるので、上記の構造のものではシートの全
体若しくはその一部に均一な遮光率及び通気率を
具現することができない弊があつた。 However, since the nonwoven fabric itself has an irregular opening, the structure described above has the disadvantage that it is not possible to achieve uniform light shielding rate and air permeability over the entire sheet or a portion thereof.
また膜体の処々に数多の彎曲状切込線を穿設
し、該線によつて膜体に舌状開離弁と通気孔を形
成せしめたポリエチレン製育苗用被覆膜は実公昭
34−13226号によつて公知となつているが、この
被膜は外部の気温が高く膜体で被膜した内部の空
気が過度に加温された際に内部の空気が膨張して
内方より膜面を押圧し、その結果上記の舌状開離
弁を内方より押開して内部の高温の空気やガスを
外方に排出するという温度や湿度の調整を目的と
するものであつて、前記のような遮光及び通気効
果はこれを期待し得ないものであつた。 In addition, a polyethylene coating membrane for seedlings, in which a number of curved cut lines are bored in various places in the membrane body, and tongue-shaped release valves and ventilation holes are formed in the membrane body, was developed by Jikosho.
No. 34-13226, this film is known in the art, but when the outside temperature is high and the air inside the film is heated excessively, the air inside expands and the film is released from the inside. The purpose of this device is to adjust temperature and humidity by pressing the surface and, as a result, pushing open the above-mentioned tongue-shaped release valve from the inside to discharge high-temperature air and gas inside to the outside. The above-mentioned light shielding and ventilation effects could not be expected.
本考案は上記のような欠陥を除去し併せてこれ
に幾多の利点を添加することを目的とするもので
あつて、遮光性を有する不織布シートの全面もし
くは大部分面に微細通気孔を設けると共にこれら
の微細通気孔の切縁に風圧によつて翻え動く上方
向きの作動片を一体に形成したことを要旨とする
ものである。 The purpose of the present invention is to eliminate the above-mentioned defects and also add a number of advantages to the above-mentioned defects. The gist of this is that an upwardly directed actuating piece is integrally formed on the incisal edge of these fine ventilation holes so that it can be moved by wind pressure.
尚、第１図および第２図に示す実施例は不織布
製シート１の全面に十文字形を呈する無数の微細
なオープン型通気孔２…を十字型熱刃もしくは放
電（スパーク）切断法等により開設し、この十字
形の切込間の４枚の遊片を第１図の拡大部に示す
ように向つて引起してこの開設によりこれ等微細
通気孔２…の切縁に風圧によつて翻え動く作動片
３…を一体に形成したものであり、また第３図に
示す実施例は星形の通気孔２…を、第４図に示す
実施例は丸一紋形の通気孔２…を、第５図に示す
実施例はエの字形の通気孔２…を夫々設け、その
各切縁の遊片を上記のような方法によつて上方に
向つて引起して同部に上記と同様の作動片３…を
形成したものである。 In the embodiment shown in FIGS. 1 and 2, countless fine open ventilation holes 2 in a cross shape are created on the entire surface of the nonwoven fabric sheet 1 by using a cross-shaped thermal blade or electric discharge (spark) cutting method. Then, the four loose pieces between the cross-shaped notches are pulled up as shown in the enlarged part of Fig. 1, and by opening them, the cutting edges of these minute ventilation holes 2 are deflected by wind pressure. The embodiment shown in FIG. 3 has a star-shaped ventilation hole 2, and the embodiment shown in FIG. 4 has a circle-shaped ventilation hole 2. In the embodiment shown in Fig. 5, each of the vent holes 2 in the shape of an E is provided, and the free piece at each incisal edge is pulled upward by the method described above, and the above-mentioned air hole is inserted into the same part. Similar actuating pieces 3 are formed.
本考案は叙上のように遮光性を有する不織布シ
ートの全面もしくは大部分面に微細通気孔を設け
ると共にこれらの微細通気孔の切縁に風圧によつ
て翻え動く作動片とを一体に形成したので、当該
通気孔の大きさと数（尚、大きさおよび数は植物
の種類に異なり試験して決めることが好ましい。）
によつて光の透過率および風の通気率を確実に調
整し得る利点があり、加うるに当該通気孔の切縁
に風圧によつて翻え動く作動片を一体に形成した
ので、この作動片が自然に動いて風の通気量をほ
どよく微変化させるのみならず微細通気孔を介し
て行う透光も木もれ日のような動きとする機能を
果して植物を恰も自然の環境のもとにおくような
状態としその成育を助長し得る等の優れた効果を
有するものである。 As mentioned above, the present invention provides fine ventilation holes on the entire surface or most of the surface of a nonwoven fabric sheet having light-shielding properties, and integrally forms an actuating piece that flips under wind pressure at the incisal edge of these fine ventilation holes. Therefore, the size and number of the ventilation holes (the size and number vary depending on the type of plant and is preferably determined by testing).
This has the advantage of being able to reliably adjust the light transmittance and wind permeability, and in addition, an actuating piece that flips depending on the wind pressure is integrally formed on the incisal edge of the vent hole. Not only do the pieces move naturally to moderately change the amount of wind ventilation, but the light transmission through the minute ventilation holes also works to create a movement similar to sunlight filtering through the trees, making plants look like they are in their natural environment. It has excellent effects such as being able to maintain the condition where it is left and encourage its growth.
図は本考案農用遮光シートの実施例を示すもの
であつて、第１図は全体の一部拡大平面図、第２
図は使用の状態を示す断面図、第３図乃至第５図
は各々別異の実施例を示すものであつて全体の平
面図である。
１……シート、２……通気孔、３……作動片、
４……茶畑、５……支柱。
The figures show an example of the agricultural light-shielding sheet of the present invention.
The figure is a sectional view showing the state of use, and FIGS. 3 to 5 are overall plan views showing different embodiments. 1... Seat, 2... Ventilation hole, 3... Actuation piece,
4... Tea plantation, 5... Pillar.
Claims (1)
部分面に微細通気孔を設けると共にこれらの微細
通気孔の切縁に風圧によつて翻え動く上方向きの
作動片を一体に形成して成る農用遮光シート。 A shading sheet for agricultural use, which has fine ventilation holes on the entire surface or most of the surface of a nonwoven fabric sheet having light-shielding properties, and integrally forms an upward-facing actuating piece that flips due to wind pressure at the incisal edge of these fine ventilation holes. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1981192039U JPS5896763U (en) | 1981-12-23 | 1981-12-23 | Agricultural shading sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1981192039U JPS5896763U (en) | 1981-12-23 | 1981-12-23 | Agricultural shading sheet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5896763U JPS5896763U (en) | 1983-07-01 |
| JPH0131009Y2 true JPH0131009Y2 (en) | 1989-09-22 |
Family
ID=30105472
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1981192039U Granted JPS5896763U (en) | 1981-12-23 | 1981-12-23 | Agricultural shading sheet |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5896763U (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0724502B2 (en) * | 1989-04-25 | 1995-03-22 | 鐘淵化学工業株式会社 | Cultivation method of soft white onion |
| JP3491986B2 (en) * | 1994-09-29 | 2004-02-03 | ユニチカ株式会社 | Agricultural sheet |
| JP6703445B2 (en) * | 2016-06-23 | 2020-06-03 | 三菱ケミカルアグリドリーム株式会社 | Shading sheet |
-
1981
- 1981-12-23 JP JP1981192039U patent/JPS5896763U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5896763U (en) | 1983-07-01 |
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