WO2004014121A1 - Greenhouse - Google Patents

Greenhouse Download PDF

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Publication number
WO2004014121A1
WO2004014121A1 PCT/DE2003/002528 DE0302528W WO2004014121A1 WO 2004014121 A1 WO2004014121 A1 WO 2004014121A1 DE 0302528 W DE0302528 W DE 0302528W WO 2004014121 A1 WO2004014121 A1 WO 2004014121A1
Authority
WO
WIPO (PCT)
Prior art keywords
greenhouse
film
greenhouse according
roofing
light
Prior art date
Application number
PCT/DE2003/002528
Other languages
German (de)
French (fr)
Inventor
Siegfried Probst
Rudolf Meier
Joachim Boll
Original Assignee
Kautex Textron Gmbh & Co. Kg
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Kautex Textron Gmbh & Co. Kg filed Critical Kautex Textron Gmbh & Co. Kg
Priority to AU2003258467A priority Critical patent/AU2003258467A1/en
Priority to DE10393503T priority patent/DE10393503D2/en
Publication of WO2004014121A1 publication Critical patent/WO2004014121A1/en

Links

Classifications

    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G9/00—Cultivation in receptacles, forcing-frames or greenhouses; Edging for beds, lawn or the like
    • A01G9/14—Greenhouses
    • A01G9/1438—Covering materials therefor; Materials for protective coverings used for soil and plants, e.g. films, canopies, tunnels or cloches
    • 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

Definitions

  • the invention relates to a greenhouse, consisting of a supporting framework structure and a flexible and transparent roofing.
  • Such greenhouses are known with a cover made of transparent PE film instead of glass.
  • Glass coverings or glazing made of glass have the disadvantage that they are not sufficiently resistant to weathering. This problem arises in particular with hail since glass sheets are relatively brittle and fragile.
  • the invention is therefore an object of the invention to improve a greenhouse of the type mentioned in terms of the disadvantages described above.
  • PVC polyvinyl chloride
  • the PVC skin of the greenhouse according to the invention is thus mechanically higher loadable, therefore easier to attach and resistant to hail and high wind load.
  • Another advantage of the greenhouse skin according to the invention is the fact that it is self-extinguishing in the presence of fire, whereas PE burns independently.
  • the PVC film is UV stabilized to prevent yellowing.
  • Its thickness may be about 0.3 to 2.0 mm, preferably 0.5 to 1.4 mm.
  • the UV stabilization of the covering is chosen so that light wavelengths below the photosynthetically active region are largely shaded. That is, the clear plasticized PVC film used is designed to be an optimal light transmission, ie on average over 90%, in the wavelength range between 380 and 700 nm. The shorter wavelength range outside this window is shaded by appropriate adjustment of the UV stabilization, ie there the film preferably has an average spectral transmission rate of less than 10%.
  • the radiation reduction is effected by absorption in the film.
  • the greenhouse shown in the drawing consists of a framework structure 1, in the form of a braced skeleton, for example of light metal rods, which is covered with a transparent PVC skin 2 as roofing.
  • the PVC skin 2 may be formed one or more parts depending on the size of the greenhouse. This can be fastened to the frame structure 1 with appropriate fastening means, for example tapes, cords, Velcro and push-button connections or by edge clamping, possibly with clamping rails.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Soil Sciences (AREA)
  • Environmental Sciences (AREA)
  • Manufacture Of Macromolecular Shaped Articles (AREA)
  • Protection Of Plants (AREA)
  • Greenhouses (AREA)

Abstract

The invention relates to a greenhouse, comprising a supporting frame structure (1) and a flexible transparent cover, characterised in that a clear PVC film is used as cover.

Description

Gewächshaus Glasshouse
Die Erfindung betrifft ein Gewächshaus, bestehend aus einer tragenden Gerüststruktur und einer flexiblen und lichtdurchsichtigen Eindeckung.The invention relates to a greenhouse, consisting of a supporting framework structure and a flexible and transparent roofing.
Derartige Gewächshäuser sind mit einer Eindeckung aus durchsichtiger PE-Folie an Stelle von Glas bekannt. Glaseindeckungen bzw. Verscheibungen aus Glas sind mit dem Nachteil behaftet, dass diese nicht hinreichend unwettersicher sind. Dieses Prob- lern ergibt sich insbesondere bei Hagel, da Glasscheiben verhältnismäßig spröde und zerbrechlich sind.Such greenhouses are known with a cover made of transparent PE film instead of glass. Glass coverings or glazing made of glass have the disadvantage that they are not sufficiently resistant to weathering. This problem arises in particular with hail since glass sheets are relatively brittle and fragile.
Mittlerweile ist man deshalb dazu übergegangen, große Gewächshäuser bzw. Treibhäuser aus einem mit PE-Folie überzogenen Ske- lett zu erstellen. Die Lebensdauer der verwendeten Folie ist allerdings verhältnismäßig gering, und zwar wegen geringer UV- Stabilität. Die PE-Folie ist darüber hinaus nicht klarsichtig, sondern opak, was dadurch kompensiert wird, dass die Folie verhältnismäßig dünn ausgebildet ist. Dies wiederum ist mit dem Nachteil behaftet, dass die Folie nur geringen mechanischen Belastungen standhalten kann. Entsprechend aufwendig ist die mechanische Befestigung der Folie an der Gerüststruktur bzw. an dem Skelett des Gewächshauses.In the meantime, one has therefore begun to create large greenhouses or greenhouses from a PE foil-covered skeleton. However, the life of the film used is relatively low, due to low UV stability. The PE film is also not clear, but opaque, which is compensated by the fact that the film is made relatively thin. This in turn has the disadvantage that the film can withstand only low mechanical loads. The mechanical attachment of the film to the framework structure or to the skeleton of the greenhouse is correspondingly expensive.
Der Erfindung liegt daher die Aufgabe zugrunde, ein Gewächshaus der eingangs genannten Art hinsichtlich der zuvor beschriebenen Nachteile zu verbessern.The invention is therefore an object of the invention to improve a greenhouse of the type mentioned in terms of the disadvantages described above.
Die Aufgabe wird erfindungsgemäß durch die kennzeichnenden Merkmale von Anspruch 1 gelöst. Überraschenderweise hat sich herausgestellt, dass die Verwendung von klarsichtiger PVC-Folie zur Verscheibung bzw. Eindeckung von Gewächshäusern entscheidende Vorteile gegenüber der Verwendung von PE-Folie hat. Einerseits lässt sich PVC klarsichtig mit einer deutlich höheren UV- und Witterungsbeständigkeit herstellen. Bei PE (Polyethylen) ist UV-Lichtstabilisierung sehr aufwendig und trotzdem nur von verhältnismäßig kurzer Dauer. Die Folie versprödet nach verhältnismäßig kurzer Zeit.The object is achieved by the characterizing features of claim 1. Surprisingly, it has been found that the use of clear PVC film for the glazing or covering of greenhouses has decisive advantages over the use of PE film. On the one hand, PVC can be produced in a clear-sighted manner with a significantly higher UV and weathering resistance. In PE (polyethylene) UV light stabilization is very complicated and still only of relatively short duration. The film embrittles after a relatively short time.
Anders ist dies bei der Verwendung von PVC (Polyvinylchlorid) . Aufgrund der Klarsichtigkeit des Materials lässt sich die PVC- Folie auch in größerer Stärke verwenden. Überraschenderweise werden auch bessere Wärmeleitfähigkeitsbeiwerte erzielt, so dass insgesamt in einem erfindungsgemäßen Gewächshaus eine höhere Temperatur als in einem vergleichbaren Gewächshaus mit PE- Eindeckung erzielt werden kann, was sich ertragssteigernd auswirkt. Die PVC-Haut des Gewächshauses gemäß der Erfindung ist dadurch auch mechanisch höher belastbar, demzufolge einfacher zu befestigen und beständig gegen Hagel und hohe Windlast.This is different with the use of PVC (polyvinyl chloride). Due to the clarity of the material, the PVC film can also be used in greater thickness. Surprisingly, better thermal conductivity coefficients are achieved, so that a higher overall temperature in a greenhouse according to the invention than in a comparable greenhouse with PE roofing can be achieved, which increases the yield. The PVC skin of the greenhouse according to the invention is thus mechanically higher loadable, therefore easier to attach and resistant to hail and high wind load.
Ein weiterer Vorteil der erfindungsgemäßen Gewächshaus-Haut ist darin zu sehen, dass diese in Anwesenheit von Feuer selbstverlöschend ist, wohingegen PE selbstständig verbrennt.Another advantage of the greenhouse skin according to the invention is the fact that it is self-extinguishing in the presence of fire, whereas PE burns independently.
Vorzugsweise ist die PVC-Folie UV-stabilisiert, um dem Vergilben vorzubeugen.Preferably, the PVC film is UV stabilized to prevent yellowing.
Deren Dicke kann etwa 0,3 - 2,0 mm, vorzugsweise 0,5 - 1,4 mm betragen.Its thickness may be about 0.3 to 2.0 mm, preferably 0.5 to 1.4 mm.
Bei einer bevorzugten Variante des Gewächshauses gemäß der Erfindung ist die UV-Stabilisierung der Eindeckung so gewählt, dass Lichtwellenlängen unterhalb des photosynthetisch wirksamen Bereichs weitestgehend schattiert sind. D. h., dass die verwendete klarsichtige Weich-PVC-Folie so ausgelegt ist, dass sie eine optimale Lichttransmission, d. h. durchschnittlich über 90 %, im Wellenlängenbereich zwischen 380 und 700 nm aufweist. Der außerhalb dieses Fensters liegende kürzere Wellenbereich wird durch entsprechende Einstellung der UV-Stabilisierung schattiert, d. h. dort hat die Folie vorzugsweise eine durchschnittliche spektrale Transmissionsrate von weniger als 10 %.In a preferred variant of the greenhouse according to the invention, the UV stabilization of the covering is chosen so that light wavelengths below the photosynthetically active region are largely shaded. That is, the clear plasticized PVC film used is designed to be an optimal light transmission, ie on average over 90%, in the wavelength range between 380 and 700 nm. The shorter wavelength range outside this window is shaded by appropriate adjustment of the UV stabilization, ie there the film preferably has an average spectral transmission rate of less than 10%.
Die Strahlungsreduktion wird durch Absorption in der Folie bewirkt .The radiation reduction is effected by absorption in the film.
Die Erfindung wird nachstehend anhand eines in der Zeichnung dargestellten Ausführungsbeispiels erläutert.The invention will be explained below with reference to an embodiment shown in the drawing.
Das in der Zeichnung dargestellte Gewächshaus besteht aus einer Gerüststruktur 1, in Form eines verstrebten Skeletts, beispielsweise aus Leichtmetallstäben, das mit einer klarsichtigen PVC-Haut 2 als Eindeckung überzogen ist. Die PVC- Haut 2 kann je nach Größe des Gewächshauses ein- oder mehrteilig ausgebildet sein. Diese kann mit entsprechenden Be- festigungsmitteln, beispielsweise Bändern, Schnüren, Klett- und Druckknopfverbindungen oder durch randseitiges Einklemmen, evtl. mit Klemmschienen, an der Gerüststruktur 1 befestigt sein. The greenhouse shown in the drawing consists of a framework structure 1, in the form of a braced skeleton, for example of light metal rods, which is covered with a transparent PVC skin 2 as roofing. The PVC skin 2 may be formed one or more parts depending on the size of the greenhouse. This can be fastened to the frame structure 1 with appropriate fastening means, for example tapes, cords, Velcro and push-button connections or by edge clamping, possibly with clamping rails.

Claims

GewächshausPatentansprüche Greenhouse patent claims
1. Gewächshaus, bestehend aus einer tragenden Gerüststruktur (1) und einer flexiblen und lichtdurchlässigen Eindeckung, d a d u r c h g e k e n n z e i c h n e t , dass als Eindeckung eine klarsichtige Weich-PVC-Folie vorgesehen ist.1. Greenhouse consisting of a load-bearing framework structure (1) and a flexible and translucent roof covering, which is intended to be covered by a clear plasticised PVC film.
2. Gewächshaus nach Anspruch 2, d a d u r c h g e k e n n z e i c h n e t , dass die PVC-Folie UV-stabilisiert ist.2. Greenhouse according to claim 2, characterized in that the PVC film is UV-stabilized.
3. Gewächshaus nach einem der Ansprüche 1 oder 2, d a d u r c h g e k e n n z e i c h n e t , dass die Dicke der Folie etwa 0,3 - 1,8 mm, vorzugsweise 0,5 - 1,4 mm beträgt.3. Greenhouse according to one of claims 1 or 2, in that a thickness of the film is about 0.3-1.8 mm, preferably 0.5-1.4 mm.
4. Gewächshaus nach einem der Ansprüche 2 oder 3, d a d u r c h g e k e n n z e i c h n e t, dass die UV- Stabilisierung der Eindeckung so gewählt ist, dass Lichtwellenlängen unterhalb des photosynthetisch wirksamen Bereichs weitestgehend schattiert sind.4. Greenhouse according to one of claims 2 or 3, characterized in that the UV stabilization of the roofing is selected so that wavelengths of light below the photosynthetically active area are largely shaded.
5. Gewächshaus nach einem der Ansprüche 2 bis 4, • d a - d u r c h g e k e n n z e i c h n e t, dass die Eindeckung unterhalb einer Lichtwellenlänge von 380 nm eine durchschnittliche Transmissionsrate von < 10 % aufweist.5. Greenhouse according to one of claims 2 to 4, • da - characterized in that the roofing below a light wavelength of 380 nm has an average transmission rate of <10%.
6. Gewächshaus nach einem der Ansprüche 2 bis 5, d a - d u r c h g e k e n n z e i c h n e t, dass die Einde- ckung bei Lichtwellenlängen zwischen 380 und 700 nm eine durchschnittliche Transmissionsrate von mehr als 90 % aufweist. 6. Greenhouse according to one of claims 2 to 5, characterized - that the Einde- At light wavelengths between 380 and 700 nm has an average transmission rate of more than 90%.
PCT/DE2003/002528 2002-07-31 2003-07-26 Greenhouse WO2004014121A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AU2003258467A AU2003258467A1 (en) 2002-07-31 2003-07-26 Greenhouse
DE10393503T DE10393503D2 (en) 2002-07-31 2003-07-26 Glasshouse

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE20211812U DE20211812U1 (en) 2002-07-31 2002-07-31 Glasshouse
DE20211812.6 2002-07-31

Publications (1)

Publication Number Publication Date
WO2004014121A1 true WO2004014121A1 (en) 2004-02-19

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Application Number Title Priority Date Filing Date
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AU (1) AU2003258467A1 (en)
DE (2) DE20211812U1 (en)
WO (1) WO2004014121A1 (en)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2249559A5 (en) * 1972-09-14 1975-05-23 Filclair PVC covering for greenhouses etc - with UV reflecting, light impermeable strips preventing premature ageing of plastic over support poles
JPS53122541A (en) * 1977-03-28 1978-10-26 Nippon Carbide Kogyo Kk Cultivation of leaf vegetable of lily family
FR2417252A1 (en) * 1978-02-20 1979-09-14 Cellophane Sa TRANSPARENT THERMOPLASTIC COMPOSITE MATERIAL FOR THE CONSTRUCTION OF AGRICULTURAL GREENHOUSES
JPS5720324A (en) * 1980-07-10 1982-02-02 Mitsubishi Monsanto Chem Co Production of plastic film excellent in heat-retaining property
JPS57209948A (en) * 1981-06-19 1982-12-23 Mitsui Toatsu Chem Inc Agricultural pvc film
JPS58146216A (en) * 1982-02-23 1983-08-31 三井東圧化学株式会社 Agricultural covering material
US4895904A (en) * 1984-06-09 1990-01-23 Yael Allingham Plastic sheeting for greenhouse and the like
US6080688A (en) * 1993-04-06 2000-06-27 Ludvig Svensson B.V. Flame retardant, long-time UV-stabilized drapeable screen

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2249559A5 (en) * 1972-09-14 1975-05-23 Filclair PVC covering for greenhouses etc - with UV reflecting, light impermeable strips preventing premature ageing of plastic over support poles
JPS53122541A (en) * 1977-03-28 1978-10-26 Nippon Carbide Kogyo Kk Cultivation of leaf vegetable of lily family
FR2417252A1 (en) * 1978-02-20 1979-09-14 Cellophane Sa TRANSPARENT THERMOPLASTIC COMPOSITE MATERIAL FOR THE CONSTRUCTION OF AGRICULTURAL GREENHOUSES
JPS5720324A (en) * 1980-07-10 1982-02-02 Mitsubishi Monsanto Chem Co Production of plastic film excellent in heat-retaining property
JPS57209948A (en) * 1981-06-19 1982-12-23 Mitsui Toatsu Chem Inc Agricultural pvc film
JPS58146216A (en) * 1982-02-23 1983-08-31 三井東圧化学株式会社 Agricultural covering material
US4895904A (en) * 1984-06-09 1990-01-23 Yael Allingham Plastic sheeting for greenhouse and the like
US6080688A (en) * 1993-04-06 2000-06-27 Ludvig Svensson B.V. Flame retardant, long-time UV-stabilized drapeable screen

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
DATABASE WPI Section Ch Week 197848, Derwent World Patents Index; Class A97, AN 1978-86856A, XP002258931 *
DATABASE WPI Section Ch Week 198341, Derwent World Patents Index; Class A60, AN 1983-785331, XP002258930 *
PATENT ABSTRACTS OF JAPAN vol. 0060, no. 83 (M - 130) 21 May 1982 (1982-05-21) *
PATENT ABSTRACTS OF JAPAN vol. 0070, no. 61 (C - 156) 15 March 1983 (1983-03-15) *

Also Published As

Publication number Publication date
AU2003258467A1 (en) 2004-02-25
DE10393503D2 (en) 2005-06-23
DE20211812U1 (en) 2003-12-11

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