JP6842685B1 - Steam ejection hose - Google Patents
Steam ejection hose Download PDFInfo
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- JP6842685B1 JP6842685B1 JP2020556332A JP2020556332A JP6842685B1 JP 6842685 B1 JP6842685 B1 JP 6842685B1 JP 2020556332 A JP2020556332 A JP 2020556332A JP 2020556332 A JP2020556332 A JP 2020556332A JP 6842685 B1 JP6842685 B1 JP 6842685B1
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- 229920005989 resin Polymers 0.000 claims abstract description 18
- 239000011347 resin Substances 0.000 claims abstract description 18
- -1 polypropylene Polymers 0.000 claims abstract description 7
- 239000004677 Nylon Substances 0.000 claims abstract description 6
- 239000004743 Polypropylene Substances 0.000 claims abstract description 6
- 229920001778 nylon Polymers 0.000 claims abstract description 6
- 229920001155 polypropylene Polymers 0.000 claims abstract description 6
- 238000005096 rolling process Methods 0.000 claims description 4
- 239000000853 adhesive Substances 0.000 claims description 3
- 230000001070 adhesive effect Effects 0.000 claims description 3
- 229920005672 polyolefin resin Polymers 0.000 claims 1
- 238000010586 diagram Methods 0.000 abstract description 3
- 239000010410 layer Substances 0.000 description 45
- 239000002689 soil Substances 0.000 description 26
- 238000004659 sterilization and disinfection Methods 0.000 description 9
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 238000009826 distribution Methods 0.000 description 4
- 229920003002 synthetic resin Polymers 0.000 description 4
- 239000000057 synthetic resin Substances 0.000 description 4
- 229920000742 Cotton Polymers 0.000 description 3
- 239000004744 fabric Substances 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- GZUXJHMPEANEGY-UHFFFAOYSA-N bromomethane Chemical compound BrC GZUXJHMPEANEGY-UHFFFAOYSA-N 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 238000010030 laminating Methods 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 208000035473 Communicable disease Diseases 0.000 description 1
- 241000219112 Cucumis Species 0.000 description 1
- 235000015510 Cucumis melo subsp melo Nutrition 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 239000012790 adhesive layer Substances 0.000 description 1
- 230000002238 attenuated effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 239000000645 desinfectant Substances 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000010413 gardening Methods 0.000 description 1
- 238000003898 horticulture Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 244000144972 livestock Species 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229940102396 methyl bromide Drugs 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 244000052769 pathogen Species 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Catching Or Destruction (AREA)
Abstract
【課題】ホースに高温の蒸気を通した場合にも蒸気漏れが発生しない蒸気噴出ホースを提供すること【解決手段】内層１１、外層１３及び中間層１２からなる樹脂製の円筒状ホース２１を扁平状にした蒸気噴出ホース１０であって、その幅方向両端部には、上下のシートを密着させた折目サイド部１５が円筒状ホースの長手方向に亘って設けられている。このような円筒状ホースにおいては、内層がポリプロピレンからなり、外層がナイロンからなることが望ましい。また、折目サイド部は、円筒状ホース２１を扁平状にして、幅方向の両端部を密着して形成されたものであることが望ましい。また、折目サイド部の厚みＴ１は、折目サイド部以外の厚みＴ２よりも薄くなっていることが望ましい。【選択図】図１PROBLEM TO BE SOLVED: To provide a steam ejection hose in which steam leakage does not occur even when high temperature steam is passed through a hose. SOLUTION: A resin cylindrical hose 21 composed of an inner layer 11, an outer layer 13 and an intermediate layer 12 is flattened. The steam ejection hose 10 has a shape, and fold side portions 15 in which the upper and lower sheets are brought into close contact with each other are provided at both ends in the width direction of the steam hose 10 in the longitudinal direction of the cylindrical hose. In such a cylindrical hose, it is desirable that the inner layer is made of polypropylene and the outer layer is made of nylon. Further, it is desirable that the fold side portion is formed by flattening the cylindrical hose 21 and bringing both end portions in the width direction into close contact with each other. Further, it is desirable that the thickness T1 of the crease side portion is thinner than the thickness T2 other than the crease side portion. [Selection diagram] Fig. 1
Description
本発明は、土壌を蒸気により加熱して園芸作物の病原菌、雑草の種子等を死滅させる土壌の蒸気消毒に用いる、蒸気噴出用ホースに関するものである。 The present invention relates to a steam ejection hose used for steam disinfection of soil in which soil is heated by steam to kill pathogens of garden crops, seeds of weeds and the like.
わが国の施設園芸において、長きにわたり土壌消毒薬剤として使用されてきた臭化メチルがオゾン層を破壊する薬剤として禁止されたことに伴い、蒸気による土壌消毒法が広く行われている。
蒸気土壌消毒法は、極厚綿布製の筒状のキャンバスホースを土壌表面に敷設し、その布目から蒸気を噴出する方法である。
しかしながら、この極厚の綿布製のキャンバスホースは、円筒状に膨らむ際の抵抗が大きく、蒸気の噴出量が先端部で減衰し、大型園芸施設での需要に対応できていなかった。
また、綿素材であるため、濡れたり湿気が高くなったりするとカビ等による腐食が発生し易く、蒸気消毒後の乾燥、保管に手数を要していた。
本出願人は、上記の問題点を解決した「土壌の蒸気消毒用蒸気噴出ホース」を既に提案している（特許文献１）。
特許文献１には、厚さ約１５０μｍの耐熱性を有する軟質合成樹脂シートにより、両側端部に長手方向全長に亘って延びる厚肉のサイド部を有するホース主体を設け、該ホース主体に直径約２．５ｍｍの噴出孔を長手方向に所定の間隔で形成するとともに、該ホース主体の先端部を閉塞又は絞ったこと特徴とする土壌の蒸気消毒用蒸気噴出ホースが記載されている。In facility gardening in Japan, the soil disinfection method using steam has been widely used because methyl bromide, which has been used as a soil disinfectant for a long time, has been banned as an ozone-depleting agent.
The steam soil disinfection method is a method in which a tubular canvas hose made of extra-thick cotton cloth is laid on the soil surface and steam is ejected from the cloth.
However, this extra-thick cotton cloth canvas hose has a large resistance when it swells into a cylindrical shape, and the amount of steam ejected is attenuated at the tip, so that it has not been able to meet the demand in large horticultural facilities.
Further, since it is a cotton material, corrosion due to mold or the like is likely to occur when it gets wet or becomes high in humidity, and it takes time and effort to dry and store it after steam disinfection.
The applicant has already proposed a "soil ejection hose for steam disinfection of soil" that solves the above problems (Patent Document 1).
In Patent Document 1, a hose main body having thick side portions extending over the entire length in the longitudinal direction is provided at both end portions by using a heat-resistant soft synthetic resin sheet having a thickness of about 150 μm, and the hose main body has a diameter of about about 150 μm. Described is a steam ejection hose for soil steam disinfection, which is characterized in that 2.5 mm ejection holes are formed at predetermined intervals in the longitudinal direction and the tip of the hose main body is closed or squeezed.
しかしながら、特許文献１に記載の蒸気噴出ホースにはまだ以下のような課題が残されている。
すなわち、蒸気噴出用ホースを引き摺って土壌の表面に布設・収納する際に土壌との摩擦で、ホースの外層に傷が入る。
とくに、扁平状に折り畳んだホースはその両端の折目サイド部が傷みやすく、蒸気を通したときにホースが膨張するとともに、折目サイド部からの蒸気漏れが生じやすい。
そこで、本発明は、上記課題を解決した新規な土壌の蒸気噴出ホースを提供することを目的とし、ホースに高温の蒸気を通した場合にも蒸気漏れが発生しない蒸気噴出ホースを提供するものである。However, the steam ejection hose described in Patent Document 1 still has the following problems.
That is, when the steam ejection hose is dragged and laid and stored on the surface of the soil, the outer layer of the hose is damaged due to friction with the soil.
In particular, the flatly folded hose is liable to damage the fold side portions at both ends, and the hose expands when steam is passed through the hose, and steam leaks from the fold side portion.
Therefore, an object of the present invention is to provide a new soil steam ejection hose that solves the above problems, and to provide a steam ejection hose that does not cause steam leakage even when high temperature steam is passed through the hose. is there.
本発明は上記課題を解決するために、以下の如く構成した。
（１）本発明の蒸気噴出用ホースは、内層、外層及び中間層からなる樹脂製の円筒状ホースを扁平状にした蒸気噴出ホースであって、
その幅方向両端部には、上下のシートを密着させた折目サイド部が長手方向に亘って設けられていることを特徴とする。
（２）本発明の蒸気噴出用ホースは、上記（１）において、
前記内層がポリプロピレンからなり、前記外層がナイロンからなることを特徴とする。
（３）本発明の蒸気噴出用ホースは、上記（１）又は（２）において、
前記折目サイド部は、円筒状のホースを扁平状にして、その幅方向両端部を密着して形成されたものであることを特徴とする。
（４）本発明の蒸気噴出用ホースは、上記（１）乃至（３）において、
前記折目サイド部の厚みＴ１は、折目サイド部以外の厚みＴ２よりも薄くなっていることを特徴とする。The present invention is configured as follows in order to solve the above problems.
(1) The steam ejection hose of the present invention is a steam ejection hose obtained by flattening a resin cylindrical hose composed of an inner layer, an outer layer and an intermediate layer.
A crease side portion in which the upper and lower sheets are brought into close contact with each other is provided at both ends in the width direction over the longitudinal direction.
(2) The steam ejection hose of the present invention is described in (1) above.
The inner layer is made of polypropylene and the outer layer is made of nylon.
(3) The steam ejection hose of the present invention has the above (1) or (2).
The fold side portion is characterized in that a cylindrical hose is flattened and both ends in the width direction are brought into close contact with each other.
(4) The steam ejection hose of the present invention is described in the above (1) to (3).
The thickness T1 of the crease side portion is characterized in that it is thinner than the thickness T2 other than the crease side portion.
本発明の蒸気噴出ホースは、内層、外層及び中間層からなる樹脂円筒状ホースを扁平状にしたものからなり、その幅方向両端部には、上下のシートを密着させた折目サイド部が蒸気噴出ホースの長手方向に亘って設けられているので、蒸気噴出用ホースを引き摺って土壌の表面に布設・収納する際に土壌との摩擦で、ホースの外層に傷が入りにくく、蒸気を通したときにホースが膨張しても、折目サイド部からの蒸気漏れが生じにくい。 The steam ejection hose of the present invention is formed by flattening a resin cylindrical hose composed of an inner layer, an outer layer and an intermediate layer, and steam is provided at both ends in the width direction at a fold side portion in which upper and lower sheets are brought into close contact with each other. Since it is provided along the longitudinal direction of the ejection hose, the outer layer of the hose is less likely to be scratched by friction with the soil when dragging the steam ejection hose and laying and storing it on the surface of the soil, allowing steam to pass through. Even if the hose sometimes expands, steam leakage from the crease side is unlikely to occur.
以下、本発明の蒸気噴出ホースの実施の形態を図に基づいて説明する。
図１は蒸気噴出ホースの構成を示す断面図であり、（ａ）は長手方向を示し、（ｂ）は幅方向の一部（図示において左側の一部）を示す。
図２は実施の形態の蒸気噴出ホースを示すホース長手方向平面図である。Hereinafter, embodiments of the steam ejection hose of the present invention will be described with reference to the drawings.
1A and 1B are cross-sectional views showing the configuration of a steam ejection hose, in which FIG. 1A shows a longitudinal direction and FIG. 1B shows a part in the width direction (a part on the left side in the drawing).
FIG. 2 is a hose longitudinal plan view showing the steam ejection hose of the embodiment.
＜蒸気噴出ホースの層構成＞
図１（ａ）の長手方向断面図に示すように、蒸気噴出ホース１０は、内層１１、外層１３及びそれらを接着する中間層１２の三層で構成される。
三層で構成されるうちの内層１１は、耐熱性を有する合成樹脂からなり、外層１３は、土壌汚れ除去性や耐久性を有する合成樹脂からなり、中間層１２は、内層１１と外層１３との接着性を有する合成樹脂からなる。
内層１１の樹脂としては例えばポリプロピレン、外層１３の樹脂としては例えばナイロン、中間層１２の樹脂としては例えばアドヘイシブポリオレフィンが挙げられる。
内層１１に用いるポリプロピレンは耐熱性に優れるため、蒸気噴出ホース１０の内部を流れる高温蒸気に対しての耐久性がある。
外層１３に用いるナイロンは耐薬品性に優れているため、蒸気噴出ホース１０の外側に付着する油、カビなどの汚れを除去しやすい。
また、ナイロンは耐摩擦性に優れているため、地面を引き摺る布設・収納時において耐傷付き性に優れる。<Layer structure of steam ejection hose>
As shown in the longitudinal sectional view of FIG. 1A, the steam ejection hose 10 is composed of three layers: an inner layer 11, an outer layer 13, and an intermediate layer 12 for adhering them.
The inner layer 11 composed of the three layers is made of a heat-resistant synthetic resin, the outer layer 13 is made of a synthetic resin having soil stain removing property and durability, and the intermediate layer 12 is composed of the inner layer 11 and the outer layer 13. It is made of a synthetic resin having the adhesiveness of.
Examples of the resin of the inner layer 11 include polypropylene, examples of the resin of the outer layer 13 include nylon, and examples of the resin of the intermediate layer 12 include adhesive polyolefin.
Since polypropylene used for the inner layer 11 has excellent heat resistance, it is durable against high-temperature steam flowing inside the steam ejection hose 10.
Since the nylon used for the outer layer 13 has excellent chemical resistance, it is easy to remove stains such as oil and mold adhering to the outside of the steam ejection hose 10.
In addition, since nylon has excellent abrasion resistance, it has excellent scratch resistance during laying and storage when dragging the ground.
＜厚み分布＞
蒸気噴出ホースに厚みは、使用態様により適宜決定されるものであるが、実施の形態では、蒸気噴出ホースの各層の厚み分布は、高熱蒸気に直接さらされる内層を６０％、外層を２５％、中間層を１５％とした。
しかし、この厚み分布は、使用態様により適宜変更可能である。
なお、実施形態の蒸気噴出ホース１０の基本構成は三層であるが、耐熱性のよい内層樹脂と汚れ除去性のよい外層樹脂との組み合わせで、いずれかの層に接着性成分が含有されたものであれば、接着層としての中間層は省略することもできる。<Thickness distribution>
The thickness of the steam ejection hose is appropriately determined depending on the mode of use, but in the embodiment, the thickness distribution of each layer of the steam ejection hose is 60% for the inner layer directly exposed to high heat steam, 25% for the outer layer, and 25% for the outer layer. The intermediate layer was set to 15%.
However, this thickness distribution can be appropriately changed depending on the mode of use.
Although the basic configuration of the steam ejection hose 10 of the embodiment is three layers, an adhesive component is contained in any of the layers by combining an inner layer resin having good heat resistance and an outer layer resin having good dirt removing property. If it is, the intermediate layer as the adhesive layer can be omitted.
＜蒸気噴出ホースの折目サイド部＞
図１（ｂ）の幅方向断面図、図２の平面図に示すように、長尺筒状の蒸気噴出ホース１０は、扁平状態に畳まれているとともに、その幅方向の両端部には密着一体化された折目サイド部１５、１５が長手方向に亘って形成されている。
この折目サイド部１５は、蒸気噴出ホース１０の扁平癖を促し、ホース収納時の巻き取り性を容易にする。
すなわち、ホースの両端に折目サイド部１５を形成する理由は、蒸気噴出ホース１０の収納時において、円筒形状のままでは巻き取りが難しく、折目サイド部１５に扁平癖をつけ、この両端部に形成された折目サイド部１５を基準として扁平状に畳むことにより巻取りが容易になるからである。
しかしながら一方で、蒸気噴出ホース１０の布設・収納は地表面を引き摺りながら行われるため、折目サイド部１５が傷付き易く、蒸気漏れにつながるおそれがあることから、
折目サイド部１５の強度を増すために、上下のシートを密着して一体化させたのである。
なお、説明上、扁平状態のホースを、上のシート１０ａ，下のシート１０ｂとして示す（図１（ｂ）の断面図参照）。
この折目サイド部１５は、上下のシート１０ａ、１０ｂを積層して貼り合わせたものではなく、もともと一体の円筒状のホースの両端部を密着して形成したものであるので、ホースに蒸気を導入して内圧がかかって膨張しても剥離することはない。<Fold side part of steam ejection hose>
As shown in the cross-sectional view in the width direction of FIG. 1B and the plan view of FIG. 2, the long tubular steam ejection hose 10 is folded in a flat state and is in close contact with both ends in the width direction. The integrated fold side portions 15 and 15 are formed in the longitudinal direction.
The fold side portion 15 promotes the flatness of the steam ejection hose 10 and facilitates the take-up property when the hose is stored.
That is, the reason why the crease side portions 15 are formed at both ends of the hose is that when the steam ejection hose 10 is stored, it is difficult to wind the hose in a cylindrical shape. This is because winding is facilitated by folding the fold side portion 15 formed in a flat shape with reference to the side portion 15.
However, on the other hand, since the steam ejection hose 10 is laid and stored while dragging the ground surface, the crease side portion 15 is easily damaged, which may lead to steam leakage.
In order to increase the strength of the crease side portion 15, the upper and lower sheets were brought into close contact with each other and integrated.
For the sake of explanation, the flat hose is shown as an upper sheet 10a and a lower sheet 10b (see the cross-sectional view of FIG. 1B).
The crease side portion 15 is not formed by laminating and laminating the upper and lower sheets 10a and 10b, but is originally formed by closely contacting both ends of an integral cylindrical hose, so that steam is applied to the hose. Even if it is introduced and expanded due to internal pressure, it will not peel off.
＜肉薄の折目サイド部＞
図１（ｂ）に示すように、この折目サイド部１５は上下のシート１０ａ，１０ｂが密着されているので、折目サイド部１５の厚みＴ１は、折目サイド部１５以外の厚みＴ２よりも薄くなっている。
折目サイド部１５は、シート１０ａ，１０ｂが密着されて空間を含まないが、折目サイド部１５以外は蒸気を導入する部分なので、円筒癖の空間１０ｃを残しているからである。
なお、折目サイド部１５を肉薄とする理由は、蒸気噴出ホース１０の布設・収納時においてホースの巻き取り性を容易にするためである。
このような折目サイド部１５のみの密着一体化は、ホースの扁平化後に両端部のみを圧延することによって形成することができる。
詳しくは、後述の製造方法の説明の欄において記載する。<Thin crease side part>
As shown in FIG. 1B, since the upper and lower sheets 10a and 10b are in close contact with the fold side portion 15, the thickness T1 of the fold side portion 15 is larger than the thickness T2 other than the crease side portion 15. Is also getting thinner.
This is because the fold side portion 15 is a portion where the sheets 10a and 10b are in close contact with each other and does not include a space, but the fold side portion 15 is a portion where steam is introduced, so that a cylindrical habit space 10c is left.
The reason why the fold side portion 15 is made thin is to facilitate the winding property of the hose when the steam ejection hose 10 is laid and stored.
Such close contact integration of only the crease side portion 15 can be formed by rolling only both end portions after flattening the hose.
Details will be described in the column of description of the manufacturing method described later.
＜折目サイド部の幅＞
折目サイド部１５は、幅Ｗでホース長手方向に亘って帯状に形成されているが、その幅は特に規定するものではなく、導入する蒸気の圧力などによって適宜決定される。<Width of crease side part>
The fold side portion 15 has a width W and is formed in a band shape over the longitudinal direction of the hose, but the width is not particularly specified and is appropriately determined depending on the pressure of the steam to be introduced and the like.
＜蒸気噴出ホースの製造方法＞
図３は、実施の形態の三層の蒸気噴出ホースの製造方法を示す概略図である。
この蒸気噴出ホースは、例えば、インフレーション法を用いた樹脂成型法によって製造する。
図３の製造方法に示すように、押出機Ａ，Ｂ，Ｃの先端にリングダイスやクロスヘッドダイと呼ばれる環状のリップを持つ共押出金型２０を設置し、樹脂を押し出して連続的に円筒状ホース２１を成型する。
この場合、円筒状ホース２１の構成が、内層、中間層及び外層となる異なった三層樹脂を吐出できるような共押出金型２０を用意する。
共押出金型２０の中央には孔が設置されており、ここから空気や水を吹き込んでホースを２〜３倍程度に膨張させて円筒状ホース２１とするとともに、ピンチロール２２で引っ張りながら円筒状ホース２１を扁平状にするとともに、扁平状ホース２３の両端部のみを圧延ロール２４にて圧延密着させて折目サイド部１５を形成して扁平状ホース２３とし、一旦、リールに巻き取る。
共押出金型２０のリング径や送り込む空気の圧力を調整することで円筒状ホース２１の径を調整することができる。
また、押出機Ａ，Ｂ，Ｃでの樹脂の吐出量と、ピンチロール２２の引っ張り速度を調整することで円筒状ホース２１の肉厚を調整することができる。
樹脂の押出し方向は上向きと下向きとがあるが、ポリプロピレン樹脂を押し出す場合は、設備の上部に共押出金型２０を設置し下向きに押し出す。
これは、設備の簡易化や操作の容易化ができ、小さな共押出金型２０を用いて大きな径の円筒状ホース２１を製造できるからである。<Manufacturing method of steam ejection hose>
FIG. 3 is a schematic view showing a method of manufacturing a three-layer steam ejection hose of the embodiment.
This steam ejection hose is manufactured, for example, by a resin molding method using an inflation method.
As shown in the manufacturing method of FIG. 3, a coextruding die 20 having an annular lip called a ring die or a crosshead die is installed at the tip of the extruders A, B, and C, and the resin is extruded to continuously form a cylinder. Mold the shape hose 21.
In this case, a coextrusion die 20 is prepared so that the cylindrical hose 21 can discharge different three-layer resins having an inner layer, an intermediate layer, and an outer layer.
A hole is installed in the center of the coextrusion mold 20, and air or water is blown from this hole to expand the hose about 2 to 3 times to form a cylindrical hose 21, and the hose is pulled by a pinch roll 22 to form a cylinder. The flat hose 21 is flattened, and only both ends of the flat hose 23 are rolled and brought into close contact with each other by a rolling roll 24 to form a crease side portion 15 to form a flat hose 23, which is once wound on a reel.
The diameter of the cylindrical hose 21 can be adjusted by adjusting the ring diameter of the coextrusion die 20 and the pressure of the air to be sent.
Further, the wall thickness of the cylindrical hose 21 can be adjusted by adjusting the amount of resin discharged by the extruders A, B, and C and the pulling speed of the pinch roll 22.
There are two directions for extruding the resin, one is upward and the other is downward. When extruding polypropylene resin, a coextrusion die 20 is installed at the top of the equipment and extruded downward.
This is because the equipment can be simplified and the operation can be facilitated, and the cylindrical hose 21 having a large diameter can be manufactured by using the small coextrusion die 20.
＜噴出孔の形成＞
実施形態の蒸気噴出ホース１０においては、ホースから外部へ蒸気を噴出する噴出孔１６が長手方向に複数形成されている。
本実施形態では、各噴出孔１６は上下のシート１０ａ，１０ｂに対になるように形成されている。
これらの噴出孔１６は、一旦、リールに巻き取られた扁平状ホース２３を巻き戻した後、上下ロールでシート１０ａ，１０ｂを挟んだ状態にして、パンチング加工機等によって上方から下方にパンチを突き刺して、穴あけ加工して形成する。
なお、各噴出孔１６の直径、形状、ピッチ、数、形成位置等は、ボイラの容量や土壌の種類等を判断して、パンチング加工制御装置に予めデータを入力することによって、適宜決定することができる。<Formation of ejection holes>
In the steam ejection hose 10 of the embodiment, a plurality of ejection holes 16 for ejecting steam from the hose to the outside are formed in the longitudinal direction.
In the present embodiment, each ejection hole 16 is formed so as to be paired with the upper and lower sheets 10a and 10b.
In these ejection holes 16, after the flat hose 23 wound on the reel is once rewound, the sheets 10a and 10b are sandwiched between the upper and lower rolls, and punches are made from above to below by a punching machine or the like. It is formed by piercing and drilling.
The diameter, shape, pitch, number, formation position, etc. of each ejection hole 16 shall be appropriately determined by determining the capacity of the boiler, the type of soil, etc., and inputting data to the punching processing control device in advance. Can be done.
＜使用例＞
図４は本実施形態の蒸気噴出ホースの使用例である。
図４（ａ）斜視図、（ｂ）断面図に示すように、消毒をしようとする土壌（例えば、畝）３０の表面３０ａに、蒸気噴出ホース１０を布設し、その基部１０ｄを外部に設置したボイラー３１に接続し、その先端１０ｅは閉塞する。
その後、非通気性のポリエチレンなどのカバーシート３２により土壌３０及び蒸気噴出ホース１０を被覆し、カバーシート３２の上面に重し３３を載せて消毒領域３４を形成する。<Usage example>
FIG. 4 is an example of using the steam ejection hose of the present embodiment.
As shown in FIG. 4 (a) perspective view and (b) cross-sectional view, a steam ejection hose 10 is laid on the surface 30a of the soil (for example, ridge) 30 to be disinfected, and the base portion 10d thereof is installed outside. It is connected to the boiler 31 and its tip 10e is closed.
After that, the soil 30 and the steam ejection hose 10 are covered with a cover sheet 32 made of non-breathable polyethylene or the like, and a weight 33 is placed on the upper surface of the cover sheet 32 to form a disinfection area 34.
なお、図５の概念図に示すように、ボイラー３１で発生した蒸気が蒸気噴出ホース１０の基部１０ｄから導入されると、蒸気噴出ホース１０は膨張し、高温蒸気が噴出孔１６を介して外部に噴出され、カバーシート３２と土壌３０との間に充満し、土壌表面３０ａ全域に熱前線が形成される。
蒸気の連続供給によって熱前線は土壌表面３０ａから下方に向かって伝播し、土壌３０全体に亘って均一な温度分布で確実に消毒がされる。As shown in the conceptual diagram of FIG. 5, when the steam generated in the boiler 31 is introduced from the base portion 10d of the steam ejection hose 10, the steam ejection hose 10 expands and the high temperature steam is discharged to the outside through the ejection hole 16. It is ejected to fill the space between the cover sheet 32 and the soil 30, and a heat front is formed over the entire soil surface 30a.
The continuous supply of steam propagates the heat front downward from the soil surface 30a, ensuring disinfection with a uniform temperature distribution throughout the soil 30.
本発明の蒸気噴出ホースは、メロンなどの周年栽培に伴う土壌伝染性病害の防止をはじめ、園芸、農業などに幅広く適用できる。
また、毒性がなく、人畜・近隣作物への害もなく、産業上の利用可能性が高い。The steam ejection hose of the present invention can be widely applied to horticulture, agriculture, etc., as well as prevention of soil infectious diseases associated with year-round cultivation of melons and the like.
In addition, it is non-toxic, has no harm to humans, livestock and neighboring crops, and has high industrial applicability.
１０ 蒸気噴出ホース
１０ａ 上シート
１０ｂ 下シート
１０ｃ 円筒癖の空間
１０ｄ 蒸気噴出ホース基部
１０ｅ 蒸気噴出ホース先端
１１ 内層
１２ 中間層
１３ 外層
１５ 折目サイド部
１６ 噴出孔
２０ 共押出金型
２１ 円筒状ホース
２２ ピンチロール
２３ 扁平状ホース
２４ 圧延ロール
３０ 土壌（畝）
３０ａ 土壌表面
３１ ボイラー
３２ カバーシート
３３ 重し
３４ 消毒領域
Ａ，Ｂ，Ｃ 押出機
Ｔ１ 折目サイド部１５の厚み
Ｔ２ 折目サイド部１５以外の厚み10 Steam ejection hose 10a Upper sheet 10b Lower sheet 10c Cylindrical space 10d Steam ejection hose base 10e Steam ejection hose tip 11 Inner layer 12 Intermediate layer 13 Outer layer 15 Fold side part 16 Ejection hole 20 Co-extrusion mold 21 Cylindrical hose 22 Pinch roll 23 Flat hose 24 Rolling roll 30 Soil (ridge)
30a Soil surface 31 Boiler 32 Cover sheet 33 Weight 34 Disinfection area A, B, C Extruder T1 Thickness of fold side part 15 T2 Thickness other than fold side part 15
Claims (1)
その幅方向両端部に折目サイド部が長手方向に亘って形成された一体的な蒸気噴出ホースであって、
前記円筒状ホースは、
その内層がポリプロピレン樹脂、外層がナイロン樹脂、中間層がアドヘイシブポリオレフィン樹脂からなる三層樹脂を共押出によって形成されたものであり、
前記折目サイド部は、前記扁平化後にその幅方向両端部のみが圧延されて形成されたものであり、
前記折目サイド部の厚みＴ１は、折目サイド部以外の厚みＴ２よりも薄くなっていることを特徴とする蒸気噴出用ホース。 Flatten a resin cylindrical hose consisting of an inner layer, an outer layer and an intermediate layer.
An integral steam ejection hose in which crease side portions are formed in the longitudinal direction at both ends in the width direction.
The cylindrical hose
The inner layer is a polypropylene resin, the outer layer is a nylon resin, and the intermediate layer is an adhesive polyolefin resin, which is formed by coextrusion of a three-layer resin.
The crease side portion is formed by rolling only both ends in the width direction after the flattening.
The steam ejection hose is characterized in that the thickness T1 of the fold side portion is thinner than the thickness T2 other than the fold side portion.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2019192007 | 2019-10-21 | ||
| JP2019192007 | 2019-10-21 | ||
| PCT/JP2020/003659 WO2021079534A1 (en) | 2019-10-21 | 2020-01-31 | Steam spray hose |
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| JP6842685B1 true JP6842685B1 (en) | 2021-03-17 |
| JPWO2021079534A1 JPWO2021079534A1 (en) | 2021-11-25 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59108A (en) * | 1982-06-25 | 1984-01-05 | Sekisui Chem Co Ltd | Manufacture of polarizing film |
| JP2000102918A (en) * | 1998-09-28 | 2000-04-11 | Nippon Synthetic Chem Ind Co Ltd:The | Ethylene-vinyl acetate copolymer saponified pellet and its application |
| JP3629231B2 (en) * | 2001-10-03 | 2005-03-16 | 株式会社丸文製作所 | Steam hose for soil steam disinfection |
| JP2005065574A (en) * | 2003-08-22 | 2005-03-17 | Kazuhiko Ozukuri | Device and method for steam soil sterilization, and steam feed pipe for use in steam soil sterilization |
| WO2019189367A1 (en) * | 2018-03-30 | 2019-10-03 | 三菱ケミカル株式会社 | Molded article, sheet, and container, and tubular body, straw, swab, and balloon stick |
-
2020
- 2020-01-31 JP JP2020556332A patent/JP6842685B1/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59108A (en) * | 1982-06-25 | 1984-01-05 | Sekisui Chem Co Ltd | Manufacture of polarizing film |
| JP2000102918A (en) * | 1998-09-28 | 2000-04-11 | Nippon Synthetic Chem Ind Co Ltd:The | Ethylene-vinyl acetate copolymer saponified pellet and its application |
| JP3629231B2 (en) * | 2001-10-03 | 2005-03-16 | 株式会社丸文製作所 | Steam hose for soil steam disinfection |
| JP2005065574A (en) * | 2003-08-22 | 2005-03-17 | Kazuhiko Ozukuri | Device and method for steam soil sterilization, and steam feed pipe for use in steam soil sterilization |
| WO2019189367A1 (en) * | 2018-03-30 | 2019-10-03 | 三菱ケミカル株式会社 | Molded article, sheet, and container, and tubular body, straw, swab, and balloon stick |
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