JP5194093B2 - Air dome with ventilation - Google Patents

Air dome with ventilation Download PDF

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JP5194093B2
JP5194093B2 JP2010252191A JP2010252191A JP5194093B2 JP 5194093 B2 JP5194093 B2 JP 5194093B2 JP 2010252191 A JP2010252191 A JP 2010252191A JP 2010252191 A JP2010252191 A JP 2010252191A JP 5194093 B2 JP5194093 B2 JP 5194093B2
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air
film
dome
ventilation
air dome
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JP2012102550A (en
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圭助 阿部
昌也 河端
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Tobishima Corp
AGC Green Tech Co Ltd
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Description

本発明は、送風手段により送り込まれる空気により樹脂フィルムをドーム型に保持するエアドーム、特に、温室のような環境として種々の農作物を栽培する農業用施設に適した換気手段を備えたエアドームに関する。   The present invention relates to an air dome that holds a resin film in a dome shape by air sent by a blowing means, and more particularly, to an air dome equipped with a ventilation means suitable for an agricultural facility for growing various crops as an environment such as a greenhouse.

従来から農作物を栽培する温室などの簡易施設としてビニールハウスが知られている。このようなビニールハウスは、例えば、特許文献１（特開２００４−３５７５８３号）で示すように、骨組部材を蒲鉾型に組んだハウス枠をビニールで覆った構造が一般的である。また、特許文献２（特開特開２００４−１０５１３２号）には、植物栽培工場のための建物構造として、建物の略南側面を構成するガラス窓側面と天井部及び略北側面を構成するドーム形壁面とを有し、ガラス窓側面は複数の柱と梁で支持される二重ガラス窓により構成され、ドーム形壁面はリブ付外鈑と断熱層と内側面を鏡面とした内張鈑からなる壁体で構成したものが提案されている。   Conventionally, a greenhouse is known as a simple facility such as a greenhouse for cultivating crops. For example, as shown in Patent Document 1 (Japanese Patent Laid-Open No. 2004-357583), such a greenhouse generally has a structure in which a house frame in which frame members are assembled in a bowl shape is covered with vinyl. Patent Document 2 (Japanese Patent Laid-Open No. 2004-105132) discloses, as a building structure for a plant cultivation factory, a glass window side surface, a ceiling portion, and a dome that forms a substantially north side surface that constitute a substantially southern side surface of the building. The glass window side is composed of a double glass window supported by a plurality of columns and beams, and the dome-shaped wall is a ribbed outer wall, a heat insulating layer, and a lining wall with an inner surface as a mirror surface. What consists of the wall which becomes is proposed.

このような、農業用施設は、何れも屋根を支える骨組みに太陽光を通す素材（ビニール、ガラス）で覆う構造であるため、骨組みを組むなど、施工に手間がかかり、工期が延びるなどの問題があるとともに、施設が大型化すると屋根を支える支柱が必要となり、連続した広い作業空間を確保できず、機械化の妨げとなるばかりでなく、育成する農作物が部分的に支柱の影となるなど、農作物の育成にも悪影響を与える。そこで、例えば特許文献３（特開平５−１８４３４７号）や特許文献４（特開２００４−３５７５８３号）で示すように、太陽光を通す素材から成る樹脂フィルムを送風手段により送り込まれる空気によりドーム型に保持するように構成したエアドームを農業用施設に転用することが考えられる。   Such agricultural facilities are all covered with a material that allows sunlight to pass through the framework that supports the roof (vinyl, glass), so it takes time to construct the framework, such as building a framework, and the construction period is extended. In addition, there is a need for a pillar to support the roof as the facility becomes larger, and it is not possible to secure a continuous and wide working space, which not only hinders mechanization, but also the crops to be grown are partially shaded by the pillar, etc. It also adversely affects the cultivation of crops. Therefore, as shown in, for example, Patent Document 3 (Japanese Patent Laid-Open No. 5-184347) and Patent Document 4 (Japanese Patent Laid-Open No. 2004-357583), a dome-shaped resin film made of a material that allows sunlight to pass through is blown by air blowing means. It is conceivable to use an air dome configured to be held in an agricultural facility.

特開２００４−３５７５８３号公報Japanese Patent Laid-Open No. 2004-357583 特開特開２００４−１０５１３２号公報JP-A-2004-105132 特開平５−１８４３４７号公報JP-A-5-184347 特開２００４−３５７５８３号公報Japanese Patent Laid-Open No. 2004-357583

特許文献３や特許文献４で提案されるエアドームにおいて、農業用施設に転用する場合、栽培する農作物に適した温度となるように温度管理することが望ましい。特に、エアドームが太陽光を通す素材から成る樹脂フィルムから構成され、外気温が高い夏季などにおいて室温が上昇することから、内部にこもる熱をいかに効率的に外部に発散させるかが極めて重要となる。このような温度管理に関し、従来、室温を保つためには空調設備などや換気扇などを設けることが一般的に行われていたが、エアドームを構成する樹脂フィルに換気扇を装着することが困難であるとともに、換気部分から雨水や害虫あるは埃などが侵入するため、これらの対策も必要となる。また、空調設備などを設けた場合、ランニングコストが嵩んでしまうとともに、近年、地球温暖化の防止する目的で省エネ化による二酸化炭素の削減が求められており、空調設備などの大型設備は省エネ化の観点からも、不適である。   In the air dome proposed in Patent Document 3 or Patent Document 4, when diverting to an agricultural facility, it is desirable to control the temperature so that the temperature is suitable for the crop to be cultivated. In particular, the air dome is made of a resin film made of a material that allows sunlight to pass, and the room temperature rises in summer when the outside air temperature is high. Therefore, it is extremely important to efficiently dissipate the heat accumulated inside. . With regard to such temperature management, conventionally, in order to keep the room temperature, it has been generally performed to provide an air conditioning facility or a ventilation fan, but it is difficult to attach the ventilation fan to the resin fill constituting the air dome. At the same time, rainwater, pests, dust and the like enter from the ventilation part, so these measures are also required. In addition, when air conditioning equipment is installed, running costs increase, and in recent years there has been a demand for reduction of carbon dioxide by energy saving in order to prevent global warming. From the point of view, it is inappropriate.

本発明は上述した問題点に鑑みて成されたものであり、室温を保つための特別な空調設備を設けることなく、省エネ化を図り、かつ、内部にこもる熱を効率的に逃がすことが可能であるとともに、防水性、防虫性並びに防水性にも優れた換気手段を備えたエアドームを提供することを目的とする。   The present invention has been made in view of the above-mentioned problems, and can save energy and efficiently escape the heat accumulated inside without providing a special air conditioning facility for keeping room temperature. In addition, an object of the present invention is to provide an air dome equipped with ventilation means that is excellent in waterproofness, insect proofing, and waterproofness.

本発明の換気手段を備えたエアドームは、送風手段により送り込まれる空気により可撓性を有する樹脂フィルムをドーム型に保持するとともに、前記送風手段によりエアドーム内に供給される空気によってエアドーム内を陽圧に保つエアドームにおいて、
前記エアドームの頂部に多数の通気孔を有する換気用フィルムを配置するとともに、この換気用フィルムの内側に可撓性を有する開閉用フィルムを配置し、換気時には開閉用フィルムを開状態で保持することによって、通気孔から抜ける空気圧によって通気孔からの雨水や虫、塵挨などの侵入を防止するように構成するとともに、非換気時には前記開閉用フィルムをエアドームの内圧によって吸着させ、前記開閉用フィルムによって前記通気孔を塞いだ状態で保持したことを特徴とする。
 The air dome equipped with the ventilation means of the present invention holds the flexible resin film in the dome shape by the air sent by the blowing means, and positively pressurizes the inside of the air dome by the air supplied into the air dome by the blowing means. In the air dome that keeps
A ventilation film having a large number of ventilation holes is arranged on the top of the air dome, and a flexible opening / closing film is arranged inside the ventilation film, and the opening / closing film is held open during ventilation. In order to prevent rainwater, insects, dust and the like from entering through the air vent by the air pressure that escapes from the air vent , the opening / closing film is adsorbed by the internal pressure of the air dome when not ventilated, and the opening / closing film The vent hole is held in a closed state .

また、本発明の換気手段を備えたエアドームは、前記樹脂フィルムが太陽光を透過する透光性素材によって構成され、該樹脂フィルムで農業用施設を覆うエアドームとして用いることを特徴とする。
 Moreover, the air dome provided with the ventilation means of the present invention is characterized in that the resin film is made of a translucent material that transmits sunlight, and is used as an air dome that covers agricultural facilities with the resin film.

また、本発明の換気手段を備えたエアドームは、前記樹脂フィルムを外装膜と内装膜からなる２重構造とし、かつ、その外装膜と内装膜との間に複数の空気層を形成したことを特徴とする。
 In the air dome equipped with the ventilation means of the present invention, the resin film has a double structure composed of an exterior film and an interior film, and a plurality of air layers are formed between the exterior film and the interior film. Features.

本発明は、上記構成により、送風手段から送り込まれる空気によって樹脂フィルムを膨らませて農業用施設を覆うエアドームとすることによって、施工性に優れるとともに、屋根を支える支柱も不要であり、支柱などによる影も発生しないため、効率よく農作物を栽培することができる。   With the above configuration, the present invention has an air dome that covers the agricultural facility by inflating the resin film with the air sent from the air blowing means, so that the workability is excellent, and the column supporting the roof is unnecessary. Therefore, crops can be cultivated efficiently.

また、樹脂フィルムを構成する外装膜と内装膜との間に複数の空気層が形成され、この空気層による断熱効果によって、エアドーム内の温度管理が容易であるとともに、エアドームは、送風手段から送り込まれる空気の内部圧力を受けてドーム型に保持され、その内部圧力を利用してエアドームの頂部に配置した通気孔からエアドームの頂部にこもる熱、特に、外気温の高い夏季において太陽光によって暖められた空気を通気孔から外部へと効率的に逃がすことができる。   In addition, a plurality of air layers are formed between the exterior film and the interior film constituting the resin film, and the temperature control inside the air dome is easy due to the heat insulation effect of the air layer, and the air dome is fed from the blowing means. The air is held in a dome shape by receiving the internal pressure of the air, and the internal pressure is used to heat up the air dome from the vents located at the top of the air dome, particularly in the summer when the outside temperature is high, by sunlight. Air can be efficiently released from the air vent to the outside.

しかも、エアドームの換気時において、通気孔から抜ける空気圧によって通気孔から内部に侵入する雨水や害虫、細かな塵や埃が遮断され、エアドームの防水性、防虫性、防塵性を高めることができるとともに、開閉用フィルムによって換気用フィルムを必要に応じて開閉制御することができ、例えば、夜間あるいは外気温が低い冬季において通気孔を閉じることによって、エアドームの降温を防ぐことができ、結果として効率よく農業用施設全体の温度を容易に管理することができる。   Moreover, when the air dome is ventilated, rainwater, pests, fine dust and dirt that enter the interior from the air vent are blocked by the air pressure that escapes from the air vent, and the air dome can be improved in waterproofness, insect resistance, and dustproofness. The opening and closing film can be used to control the opening and closing of the ventilation film as necessary.For example, by closing the air vents at night or in winter when the outside air temperature is low, the temperature of the air dome can be prevented from falling. The temperature of the entire agricultural facility can be easily managed.

本発明の一実施例を示すエアドームの一部を切り欠いた斜視図である。It is the perspective view which notched a part of air dome which shows one Example of this invention. 同上、一部を拡大したエアドームの平面図である。It is a top view of the air dome which expanded a part same as the above. 同上、樹脂フィルムの概略を示す外装膜の一部を切り欠いた斜視図である。It is the perspective view which notched a part of exterior film | membrane which shows the outline of a resin film same as the above. 同上、エアドームの換気状態を示す概略説明図であり、図４（Ａ）は、換気状態、図４（Ｂ）は非換気状態を示している。It is a schematic explanatory drawing which shows the ventilation state of an air dome same as above, FIG. 4 (A) has shown the ventilation state, FIG.4 (B) has shown the non-ventilation state. 同上、換気状態を示す換気フィルムの拡大断面図である。It is an expanded sectional view of the ventilation film which shows a ventilation state same as the above. 同上、通気孔の開閉状態を示す概略説明図である。It is a schematic explanatory drawing which shows the open / close state of a vent hole same as the above.

以下、添付図面を用いて本発明の一実施例について説明する。   Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings.

図１は、この発明に係るエアドームの一部を切り欠いた斜視図であり、同図において、１は農作物を栽培する農業用施設、２は農業用施設１の周囲に設けた作業用通路であり、その作業用通路２を取り囲むようにドームフレーム３が設けられている。このドームフレーム３の内側にドームの外殻を構成する樹脂フィルム１０の周縁部分を配置し、ドームフレーム３の外側に設けた送風手段として複数の送風ファン４から送り込まれる空気により樹脂フィルム１０を膨らませる。これにより、前記ドームフレーム３によって樹脂フィルム１０の周縁が位置決めされ、かつ、樹脂フィルム１０に設けた複数の放射状のロープ５によって樹脂フィルム１０をドーム型に保持する。なお、ロープ５の末端は基礎あるいは設置面にアンカーなどによって固定され、農業用施設１を覆うエアドーム２０を構成している。また、本実施例では、エアドーム２０を水耕栽培による農業用施設１として用いており、養液を貯める円形状の水耕栽培水槽７の中央部に播種ユニット（図示せず）の供給エリア７Ａを設けるとともに、水耕栽培水槽７の外周部に収穫エリア７Ｂを設け、作業用ブリッジ８を通って供給エリア７Ａに播種ユニット７Ａに播種ユニットを供給し、水耕栽培水槽７に浸した播種ユニットを円周方向にゆっくりと回転移送しながら漸次外周方向に移動させて、育成した植物を前記収穫エリア７Ｂへと送って最終的に収穫エリア７Ｂから農作物を収穫する。なお、図１において符号９はエアドーム２０の出入り口である。   FIG. 1 is a perspective view in which a part of an air dome according to the present invention is cut away, in which 1 is an agricultural facility for cultivating agricultural products, and 2 is a work passage provided around the agricultural facility 1. The dome frame 3 is provided so as to surround the work passage 2. The peripheral portion of the resin film 10 constituting the outer shell of the dome is disposed inside the dome frame 3, and the resin film 10 is inflated by air sent from a plurality of blower fans 4 as a blowing means provided outside the dome frame 3. The Thereby, the periphery of the resin film 10 is positioned by the dome frame 3, and the resin film 10 is held in a dome shape by the plurality of radial ropes 5 provided on the resin film 10. The end of the rope 5 is fixed to the foundation or the installation surface with an anchor or the like, and constitutes an air dome 20 that covers the agricultural facility 1. Further, in this embodiment, the air dome 20 is used as an agricultural facility 1 by hydroponics, and a seeding unit (not shown) supply area 7A is provided at the center of a circular hydroponic tank 7 for storing nutrient solution. A harvesting area 7B is provided on the outer periphery of the hydroponics tank 7, a sowing unit 7A is supplied to the sowing unit 7A through the work bridge 8 and supplied to the feeding area 7A, and the sowing unit immersed in the hydroponics tank 7 Is gradually moved in the circumferential direction while slowly rotating in the circumferential direction, and the grown plants are sent to the harvesting area 7B to finally harvest the crop from the harvesting area 7B. In FIG. 1, reference numeral 9 denotes an entrance / exit of the air dome 20.

前記樹脂フィルム１０は、太陽光を透過する素材によって構成されるとともに、図３及び図４に示すように、外装膜１１と内装膜１２からなる２重構造とし、その外装膜１１と内装膜１２を例えば溶着などの適宜手段で部分的に貼り合わせて外装膜１１と内装膜１２との間に複数の空気層１３を形成している。なお、前記外装膜１１と内装膜１２との貼り合せ部１４は、断続的に形成されており、このように外装膜１１と内装膜１２を断続的に貼り合わせることによって各貼り合せ部１４の間に位置して隣接する空気層１３の間に連通部１５が形成され、一部の空気層１３に空気を供給することによって各連通部１５を通って各空気層１３に空気を供給され、樹脂フィルム１０全体に渡って空気層１３が形成される。   The resin film 10 is made of a material that transmits sunlight, and has a double structure including an exterior film 11 and an interior film 12 as shown in FIGS. 3 and 4, and the exterior film 11 and the interior film 12. A plurality of air layers 13 are formed between the exterior film 11 and the interior film 12 by partially bonding them together by appropriate means such as welding. In addition, the bonding part 14 of the said exterior film | membrane 11 and the interior film | membrane 12 is formed intermittently, and by sticking the exterior film | membrane 11 and the interior film | membrane 12 intermittently in this way, each bonding part 14 is attached. A communication portion 15 is formed between adjacent air layers 13 positioned between them, and air is supplied to each air layer 13 through each communication portion 15 by supplying air to some of the air layers 13, An air layer 13 is formed over the entire resin film 10.

１７は多数の通気孔１８を有する換気用フィルムであり、エアドーム２０の頂部に設けられている。本実施例では例えば図２に示すように、換気用フィルム１７に、４箇所の通気孔１８群を分散させて形成しているが、エアドーム２０の容積などに応じて通気孔１８の開口面積や開口率などは適宜設定すればよい。このエアドーム２０の頂部に設けた前記各通気孔１８からエアドーム２０内の空気を排気させることによって、特に、外気温の高い夏季において、エアドーム２０内にこもる熱を効率的に排気させてエアドーム２０内の温度上昇を抑える。さらに、図５に示すように、通気孔１８から抜ける空気圧Ｆによって通気孔１８から内部に侵入する雨水Ｍあるいは害虫、細かな塵や埃などを遮断してエアドーム２０の防水性、防虫性、防塵性を高めている。すなわち、エアドーム２０内は、送風ファン４から送り込まれる空気により前記通気孔１８から抜ける空気量を想定して陽圧に保たれており、通気孔１８から抜ける空気圧Ｆによってエアドーム２０内への雨水Ｍ、害虫、細かな塵や埃などを遮断するようにしている。   Reference numeral 17 denotes a ventilation film having a large number of ventilation holes 18 and is provided on the top of the air dome 20. In this embodiment, for example, as shown in FIG. 2, four ventilation holes 18 are dispersed in the ventilation film 17, but depending on the volume of the air dome 20, the opening area of the ventilation holes 18 What is necessary is just to set an aperture ratio etc. suitably. By exhausting the air in the air dome 20 from the air holes 18 provided at the top of the air dome 20, particularly in the summer when the outside air temperature is high, the heat accumulated in the air dome 20 is efficiently exhausted, and the inside of the air dome 20 is exhausted. Suppresses the temperature rise. Further, as shown in FIG. 5, rainwater M or pests, fine dust, dust, and the like that enter the inside through the air holes 18 are blocked by the air pressure F that passes through the air holes 18, thereby waterproofing, insectproofing, and dustproofing the air dome 20. Increases sex. That is, the inside of the air dome 20 is maintained at a positive pressure assuming the amount of air passing through the vent hole 18 by the air sent from the blower fan 4, and the rainwater M flowing into the air dome 20 by the air pressure F passing through the vent hole 18 is maintained. , Pests, fine dust and dust are cut off.

また、各換気用フィルム１７の内面側には、可撓性を有する開閉用フィルム１９が配置されている。この開閉用フィルム１９の一端部が換気用フィルム１７に溶着などして片持ち状に貼り合わせており、その自由端側には紐体１９ａが連結されている。この紐体１９ａを引っ張る（手動）ことによって、図６にて実線で示すように開閉用フィルム１９を換気用フィルム１７から強制的に引き離す。これにより、通気孔１８が開口してエアドーム２０の換気が成される。一方、紐体１９ａを緩めることによって、開閉用フィルム１９は、通気孔１８から抜ける空気圧Ｆによって、図６にて一点鎖線で示すように換気用フィルム１７に吸着され、通気孔１８が塞がれる。このように、紐体１７ａを操作することによって、通気孔１８を必要に応じて開閉制御することができ、例えば、夜間あるいは外気温は低いと冬季において通気孔１８を閉じることによって、エアドーム２０の温度管理が容易となる。さらに、通気孔１８を閉じた際、エアドーム２０内の気密を保てるため、送風ファン４から送り込まれる空気量を減らして省エネ運転に移行する。この場合、送風ファン４の制御は、例えば、エアドーム２０の内圧をセンサで検知して自動運転することも可能である。   A flexible opening / closing film 19 is disposed on the inner surface side of each ventilation film 17. One end of the opening / closing film 19 is bonded to the ventilation film 17 in a cantilever manner, and a string 19a is connected to the free end thereof. By pulling (manually) the string 19a, the opening / closing film 19 is forcibly pulled away from the ventilation film 17 as shown by a solid line in FIG. Thereby, the ventilation hole 18 opens and the air dome 20 is ventilated. On the other hand, by loosening the string body 19a, the opening / closing film 19 is adsorbed by the ventilation film 17 as shown by the one-dot chain line in FIG. . As described above, by operating the string body 17a, the vent hole 18 can be controlled to open and close as necessary. For example, when the air hole 18 is closed at night or in winter when the outside air temperature is low, Temperature management becomes easy. Further, when the air hole 18 is closed, the air dome 20 is kept airtight, so that the amount of air sent from the blower fan 4 is reduced and the energy saving operation is performed. In this case, the blower fan 4 can be controlled automatically by detecting the internal pressure of the air dome 20 with a sensor, for example.

以上のように、本実施例においては、送風ファン４から送り込まれる空気によって樹脂フィルム１０を膨らませて水耕栽培水槽７を覆うエアドーム２０とすることによって、施工性に優れ、工期を大幅に短縮化することができるとともに、屋根を支える支柱も不要であるため、エアドーム２０内に広い連続した空間を確保することができ、作業性にも優れるとともに、屋根全体が透光性を備えた樹脂フィルム１０であるから、支柱による影も発生しないため、効率よく農作物を栽培することができる。   As described above, in this embodiment, the resin film 10 is inflated by the air sent from the blower fan 4 to form the air dome 20 that covers the hydroponics tank 7, thereby providing excellent workability and greatly shortening the work period. In addition, since the supporting column for supporting the roof is not necessary, a wide continuous space can be secured in the air dome 20, the workability is excellent, and the resin film 10 in which the entire roof has translucency. Therefore, since the shadow by a support | pillar does not generate | occur | produce, a crop can be cultivated efficiently.

また、樹脂フィルム１０を構成する外装膜１１と内装膜１２との間に複数の空気層１３が形成され、この空気層１３による断熱効果によって、エアドーム２０内の温度管理も容易である。さらに、エアドーム２０は送風ファン４から送り込まれる空気の内部圧力を受けてドーム型に保持され、かつ、その内部圧力を利用してエアドーム２０の頂部に配置した通気孔１８からエアドーム２０の頂部（上部）にこもる熱、特に、外気温の高い夏季において太陽光によって暖められて空気を通気孔１８から外部に逃がして効率的に排気させることができる。このように、エアドーム２０の形状を保つために必要な送風ファン４を利用してエアドーム２０の換気を行うことができ、換気扇や空調設備といった特別なシステムも不要であり、極めて合理的な換気システムであるとともに、省エネ化にも付与できる。   In addition, a plurality of air layers 13 are formed between the exterior film 11 and the interior film 12 constituting the resin film 10, and the temperature control in the air dome 20 is easy due to the heat insulating effect of the air layers 13. Further, the air dome 20 is held in a dome shape by receiving the internal pressure of the air sent from the blower fan 4, and the top portion (upper part) of the air dome 20 from the vent hole 18 disposed on the top portion of the air dome 20 using the internal pressure. ) Heat, particularly in summer when the outside air temperature is high, it is warmed by sunlight, and the air can escape from the air vent 18 to the outside and be efficiently exhausted. In this way, the air dome 20 can be ventilated by using the blower fan 4 necessary for maintaining the shape of the air dome 20, and a special system such as a ventilation fan or air conditioning equipment is unnecessary, and an extremely rational ventilation system. It can also be given to energy saving.

しかも、エアドーム２０の換気時において、通気孔１８から抜ける空気圧Ｆによって通気孔１８から内部に侵入する雨水や害虫、細かな塵や埃が遮断され、エアドーム２０の防水性、防虫性、防塵性を高めることができ、かつ、各換気用フィルム１７の内面側に設けた開閉用フィルム１９によって必要に応じて簡単に開閉制御することができる。これにより、例えば、夜間あるいは外気温が低い冬季において通気孔１８を閉じることによって、エアドーム２０の降温を防ぐことができ、結果として効率よく農業用施設１全体の温度を容易に管理することができる。また、その開閉用フィルム１９の開閉は、送風ファン４から送り込まれる空気の内部圧力を利用するものであるから、省エネ化も達成できる。   In addition, when the air dome 20 is ventilated, rainwater, pests, fine dust and dirt entering the inside of the air hole 18 are blocked by the air pressure F that escapes from the air hole 18, and the air dome 20 is waterproof, insect-proof, and dust-proof. The opening and closing film 19 provided on the inner surface side of each ventilation film 17 can be easily controlled to open and close as required. Thereby, for example, by closing the air hole 18 at night or in the winter when the outside air temperature is low, the temperature of the air dome 20 can be prevented from being lowered, and as a result, the temperature of the entire agricultural facility 1 can be easily and efficiently managed. . Moreover, since the opening and closing of the opening and closing film 19 uses the internal pressure of the air sent from the blower fan 4, energy saving can also be achieved.

以上、本発明の一実施例について詳述したが、本発明は前記実施例に限定されるものではなく、本発明の要旨の範囲内で種々の変形実施が可能である。例えば、エアドーム２０の形状や通気孔１８の開口面積や開口率などは適宜選定すればよい。また、前記実施例では、農業用施設を覆うエアドームとして適用させた場合を示したが、農業用施設に限らず、園芸用施設、イベント用あるいは倉庫などにも適用可能である。   As mentioned above, although one Example of this invention was explained in full detail, this invention is not limited to the said Example, A various deformation | transformation implementation is possible within the range of the summary of this invention. For example, the shape of the air dome 20, the opening area of the vent hole 18, the opening ratio, etc. may be appropriately selected. Moreover, in the said Example, although the case where it applied as an air dome which covers the agricultural facility was shown, it is applicable not only to an agricultural facility but also to a gardening facility, an event, or a warehouse.

１ 農業用施設
４ 送風ファン（送風手段）
７ 水耕栽培水槽
１０ 樹脂フィルム
１１ 外装膜
１２ 内装膜
１３ 空気層
１７ 換気用フィルム
１８ 通気孔
１９ 開閉用フィルム
２０ エアドーム
1 Agricultural facilities 4 Blower (Blower)
7 Hydroponics tank 10 Resin film 11 Exterior film 12 Interior film 13 Air layer 17 Ventilation film 18 Vent hole 19 Opening / closing film 20 Air dome

Claims (3)

送風手段により送り込まれる空気により可撓性を有する樹脂フィルムをドーム型に保持するとともに、前記送風手段によりエアドーム内に供給される空気によってエアドーム内を陽圧に保つエアドームにおいて、
前記エアドームの頂部に多数の通気孔を有する換気用フィルムを配置するとともに、この換気用フィルムの内側に可撓性を有する開閉用フィルムを配置し、換気時には開閉用フィルムを開状態で保持することによって、通気孔から抜ける空気圧によって通気孔からの雨水や虫、塵挨などの侵入を防止するように構成するとともに、非換気時には前記開閉用フィルムをエアドームの内圧によって吸着させ、前記開閉用フィルムによって前記通気孔を塞いだ状態で保持したことを特徴とする換気手段を備えたエアドーム。 In the air dome that holds the resin film having flexibility by the air sent by the blowing means in a dome shape and keeps the inside of the air dome at a positive pressure by the air supplied into the air dome by the blowing means ,
A ventilation film having a large number of ventilation holes is arranged on the top of the air dome, and a flexible opening / closing film is arranged inside the ventilation film, and the opening / closing film is held open during ventilation. In order to prevent rainwater, insects, dust and the like from entering through the air vent by the air pressure that escapes from the air vent , the opening / closing film is adsorbed by the internal pressure of the air dome when not ventilated, and the opening / closing film An air dome provided with ventilation means, wherein the ventilation hole is held in a closed state . 前記樹脂フィルムが太陽光を透過する透光性素材によって構成され、該樹脂フィルムで農業用施設を覆うエアドームとして用いることを特徴とする請求項１記載の換気手段を備えたエアドーム。   2. The air dome provided with ventilation means according to claim 1, wherein the resin film is made of a translucent material that transmits sunlight, and is used as an air dome that covers agricultural facilities with the resin film. 前記樹脂フィルムを外装膜と内装膜からなる２重構造とし、かつ、その外装膜と内装膜との間に複数の空気層を形成したことを特徴とする請求項１又は２記載の換気手段を備えたエアドーム。
The ventilation means according to claim 1 or 2, wherein the resin film has a double structure including an exterior film and an interior film, and a plurality of air layers are formed between the exterior film and the interior film. Air dome provided.
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