FR2687042A1 - Anti-snow device for horticultural greenhouses - Google Patents

Anti-snow device for horticultural greenhouses Download PDF

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Publication number
FR2687042A1
FR2687042A1 FR9201898A FR9201898A FR2687042A1 FR 2687042 A1 FR2687042 A1 FR 2687042A1 FR 9201898 A FR9201898 A FR 9201898A FR 9201898 A FR9201898 A FR 9201898A FR 2687042 A1 FR2687042 A1 FR 2687042A1
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FR
France
Prior art keywords
roof
plastic film
snow
shaft
trusses
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.)
Withdrawn
Application number
FR9201898A
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French (fr)
Inventor
Rabeu Andre
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to FR9201898A priority Critical patent/FR2687042A1/en
Publication of FR2687042A1 publication Critical patent/FR2687042A1/en
Withdrawn legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
    • E04D13/00—Special arrangements or devices in connection with roof coverings; Protection against birds; Roof drainage ; Sky-lights
    • E04D13/10—Snow traps ; Removing snow from roofs; Snow melters
    • E04D13/106—Snow removing devices
    • 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
    • A01G9/1407—Greenhouses of flexible synthetic material
    • 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

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental Sciences (AREA)
  • Buildings Adapted To Withstand Abnormal External Influences (AREA)
  • Greenhouses (AREA)

Abstract

The subject of the present invention is an anti-snow device for horticultural greenhouses. The device is intended for greenhouses of all types, the roof of which is made from a plastic film. It consists of a combination of shoes (1) which are equipped with cutting blades (2) and slide along guides installed under the roof, by means of cables (8) drawn by pulleys (7) actuated by a longitudinal shaft (6) situated in the top part of the main arch, the sections (profiles) being arranged on either side of the ridge of the greenhouse, between the trusses (5) of the roof frame, in such a manner that rotation of the said shaft makes it possible to cut the layer of snow transversely at the same time as the plastic film simultaneously, in the centre of each module of the greenhouse, over the entire length of the roof. It is intended for greenhouses of all types, the roof of which is formed from a plastic film.

Description

DISPOSITIF ANTI-NEIGE POUR SERRES HORTICOLES
La présente invention a pour objet un dispositif anti-neige pour serres horticoles
I1 est destiné aux serres de tous types dont la toiture est formée d'un film en matière plastique.ANTI-SNOW DEVICE FOR HORTICULTURAL GREENHOUSES
The present invention relates to an anti-snow device for horticultural greenhouses
I1 is intended for greenhouses of all types whose roof is formed by a plastic film.

La plus grande partie des serres horticoles, et en particulier les serres de type "chapelle", sont aujourd'hui constituées d'une ossature faite d'une charpente légère en tubes ou profilés métalliques recouverte d'un film plastique jouant le rôle de toiture. Most horticultural greenhouses, and in particular "chapel" greenhouses, today consist of a frame made of a light frame made of tubes or metal profiles covered with a plastic film playing the role of roofing. .

Cette ossature est formée de poteaux reliés par des poutres longitudinales et supportant des fermes transversales portant la toiture et composant une série de modules identiques.This framework is formed of posts connected by longitudinal beams and supporting transverse trusses carrying the roof and composing a series of identical modules.

Les charpentes, construites en séries importantes, sont calculees pour résister aux conditions atmosphériques rencontrées dans les régions ou elles sont implantées le plus fréquemment, c1est-à-dire en plaine, à relativement basse altitude. The frames, built in large series, are calculated to withstand the atmospheric conditions encountered in the regions where they are installed most frequently, that is to say in the plain, at relatively low altitude.

C'est la raison pour laquelle les modeles de serre disponibles sur le marché supportent en général très bien le vent ou la pluie, mais ne sont pas conçus pour resister à des surcharges importantes causées par la neige. This is the reason why the greenhouse models available on the market generally withstand wind or rain very well, but are not designed to withstand significant overloads caused by snow.

Or l'installation de serres en montagne se pratique de plus en plus, et il n1 est pas rare, lors de chutes de neige soudaines ou imprévues, que de nombreuses serres s'effondrent sous le poids d'une couche de neige importante, avant que l'on ait eu le temps de démonter la toiture, seul moyen d'éviter ce résultat
Dans ce cas la charpente, qui représente le plus gros investissement de la serre, est généralement irrécupérable.However, the installation of greenhouses in the mountains is practiced more and more, and it is not uncommon, during sudden or unexpected snowfall, that many greenhouses collapse under the weight of a significant layer of snow, before that we had time to dismantle the roof, the only way to avoid this result
In this case the frame, which represents the biggest investment of the greenhouse, is generally irrecoverable.

Le dispositif selon la présente invention a pour but de remedier à cet état de chose. En effet, il permet, en sacrifiant la toiture, aisément remplaçable à faible coût, de préserver la charpente. The device according to the present invention aims to remedy this state of affairs. Indeed, it allows, by sacrificing the roof, easily replaceable at low cost, to preserve the frame.

I1 est constitué par la combinaison de sabots munis de lames coupantes et coulissant le long de guides installés sous la toiture, par l'intermédiaire de câbles tirés par des poulies actionnees par un arbre longitudinal situé en partie haute de la chapelle, les profilés étant disposes de part et d'autre du faîte de la serre, entre les fermes de la charpente, de telle manière que la rotation dudit arbre permette de couper transversalement la couche de neige en même temps que le film plastique simultanément au milieu de chaque module de la serre, sur toute la largeur de la toiture. I1 is constituted by the combination of hooves provided with cutting blades and sliding along guides installed under the roof, by means of cables pulled by pulleys actuated by a longitudinal shaft situated in the upper part of the chapel, the profiles being arranged on either side of the greenhouse ridge, between the trusses of the frame, in such a way that the rotation of said tree makes it possible to cut the layer of snow transversely at the same time as the plastic film simultaneously in the middle of each module of the greenhouse, over the entire width of the roof.

Sur les dessins schématiques annexés, donnés à titre d'exemple non limitatif d'une des formes de réalisation de l'objet de l'invention:
la figure 1 représente en perspective une serre chapelle équipée du dispositif anti-neige,
et la figure 2 est une coupe verticale longitudinale suivant les flèches A-A de la figure 1.In the appended schematic drawings, given by way of nonlimiting example of one of the embodiments of the subject of the invention:
FIG. 1 is a perspective view of a chapel greenhouse equipped with the anti-snow device,
and FIG. 2 is a vertical longitudinal section along the arrows AA of FIG. 1.

Le dispositif, figures 1 et 2, est constitué de sabots 1 pourvus de lames coupantes 2 dirigées vers le haut et coulissant dans des profilés 3 en "C" installes sous le film plastique 4 formant la toiture, à mi distance entre les fermes 5 de la charpente et parallelement à ces dernières.  The device, Figures 1 and 2, consists of shoes 1 provided with cutting blades 2 directed upward and sliding in profiles 3 in "C" installed under the plastic film 4 forming the roof, midway between the trusses 5 of the frame and parallel to them.

Chaque module de la serre comporte deux profilés 3, allant du faîte de la toiture au point le plus bas de celle-ci, et équipé chacun d'un sabot 1. Each greenhouse module has two profiles 3, going from the roof ridge to the lowest point thereof, and each equipped with a shoe 1.

Un arbre 6 longitudinal horizontal, installé au sommet de la serre et courant sur toute la longueur de celle-ci, est équipé au droit de chaque paire de profilés 3 d'une poulie 7 sur laquelle s'enroule deux câbles 8 reliés à chacun des deux sabots 1. Ces derniers étant au repos situés à l'extrémité du profilé la plus éloignée de l'arbre 6. A horizontal longitudinal shaft 6, installed at the top of the greenhouse and running over the entire length thereof, is fitted to the right of each pair of profiles 3 with a pulley 7 on which is wound two cables 8 connected to each of two shoes 1. The latter being at rest located at the end of the profile furthest from the shaft 6.

Lorsque ledit arbre est mis en rotation, manuellement ou au moyen d'un moteur, tous les sabots 1 vont simultanément coulisser dans les profilés 3 vers le sommet de la toiture et la lame 2 va couper en même temps le film plastique 4 et la couche de neige 9. Les parties coupées dudit film plastique retomberont alors de part et d'autre des fermes 5, la neige tombant elle-même à terre en soulageant instantanément la totalité de la charpente de la surcharge qu'elle représentait. When said shaft is rotated, manually or by means of a motor, all the shoes 1 will simultaneously slide in the profiles 3 towards the top of the roof and the blade 2 will cut at the same time the plastic film 4 and the layer snow 9. The cut parts of said plastic film will then fall on either side of the trusses 5, the snow itself falling to the ground instantly relieving the entire frame of the overload it represented.

La mise en route de l'arbre 6 peut avantageusement être automatisée grâce à un capteur mesurant en permanence le poids porté par la toiture et faisant démarrer un moteur actionnant ledit arbre lorsque ce poids dépasse une certaine valeur. The start-up of the shaft 6 can advantageously be automated by virtue of a sensor permanently measuring the weight carried by the roof and starting a motor actuating said shaft when this weight exceeds a certain value.

On peut bien sûr imaginer d'autres moyens que ceux décrits pour provoquer le déplacement des sabots 1 porteurs des lames coupantes 2 sous le film plastique 4. One can of course imagine other means than those described to cause the displacement of the hooves 1 carrying the cutting blades 2 under the plastic film 4.

Le positionnement des divers éléments constitutifs donne à l'objet de l'invention un maximum d'effets utiles qui n1 avaient pas été, à ce jour, obtenus par des dispositifs similaires.  The positioning of the various constituent elements gives the object of the invention a maximum of useful effects which had not, to date, been obtained by similar devices.

Claims (4)

REVENDICATIONS caractérisé par la combinaison de sabots (1) munis de lames coupantes (2) verticales dirigées vers le haut et se déplaçant sous le film plastique (4) à mi distance entre les fermes (5) de la charpente et parallèlement à ces dernières, de telle manière que les lames coupantes portées par les sabots (1) puissent aller du point le plus bas de la toiture jusqu'à son sommet et couper en même temps le film plastique (4) et la couche de neige (9) portée par cette dernière sur toute la largeur de la toiture, en faisant retomber les parties coupées dudit film plastique de part et d'autre des fermes (5) pour provoquer la chute de la neige à terre, en soulageant ainsi la charpente de la surcharge qu'elle représentait.CLAIMS characterized by the combination of shoes (1) provided with vertical cutting blades (2) directed upwards and moving under the plastic film (4) halfway between the trusses (5) of the frame and parallel to them, in such a way that the cutting blades carried by the shoes (1) can go from the lowest point of the roof to its top and cut at the same time the plastic film (4) and the layer of snow (9) carried by the latter over the entire width of the roof, dropping the cut parts of said plastic film on either side of the trusses (5) to cause the snow to fall to the ground, thereby relieving the frame of the overload that she represented. 1". Dispositif anti-neige pour serres horticoles, destiné aux serres de tous types dont la toiture est formée d'un film (4) en matière plastique tendu sur les fermes (5) de la charpente, 1 ". Anti-snow device for horticultural greenhouses, intended for greenhouses of all types whose roof is formed by a plastic film (4) stretched over the trusses (5) of the frame, 2". Dispositif selon la revendication 1, se caractérisant par le fait que les sabots (1) coulissent dans des profilés (3) en "C" installés sous le film plastique (4) formant la toiture, par l'intermédiaire de câbles (8) tirés par des poulies (7) actionnées par un arbre (6) longitudinal situe en partie haute de la chapelle, sur toute sa longueur, lesdits profilés étant disposés, à raison de deux par module de serre, de part et d'autre du faîte de celle-ci, entre les fermes (5) de la charpente, de telle maniere que la rotation dudit arbre permette de couper transversalement la couche de neige (9) en même temps que le film plastique (4) simultanément au milieu de tous les modules et sur toute la largeur de la toiture.  2 ". Device according to claim 1, characterized in that the shoes (1) slide in profiles (3) in" C "installed under the plastic film (4) forming the roof, via cables ( 8) pulled by pulleys (7) actuated by a longitudinal shaft (6) located in the upper part of the chapel, over its entire length, said sections being arranged, two per greenhouse module, on either side from the top of the latter, between the trusses (5) of the frame, in such a way that the rotation of said shaft allows the snow layer (9) to be cut transversely at the same time as the plastic film (4) simultaneously in the middle of all modules and over the entire width of the roof. 3". Dispositif selon l'une quelconque des revendications précédentes, se caractérisant par le fait que 11 arbre (6) est mis en rotation par un moteur. 3 ". Device according to any one of the preceding claims, characterized in that the 11 shaft (6) is rotated by a motor. 4 . Dispositif selon la revendication 3, se caracterisant par le fait que la mise en route de l'arbre (6) rendue automatique grâce à un capteur mesurant en permanence le poids porté par la toiture et faisant demarrer un moteur actionnant ledit arbre lorsque ce poids dépasse une certaine valeur  4. Device according to claim 3, characterized in that the start-up of the shaft (6) made automatic by a sensor permanently measuring the weight carried by the roof and starting a motor actuating said shaft when this weight exceeds a certain value
FR9201898A 1992-02-12 1992-02-12 Anti-snow device for horticultural greenhouses Withdrawn FR2687042A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR9201898A FR2687042A1 (en) 1992-02-12 1992-02-12 Anti-snow device for horticultural greenhouses

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9201898A FR2687042A1 (en) 1992-02-12 1992-02-12 Anti-snow device for horticultural greenhouses

Publications (1)

Publication Number Publication Date
FR2687042A1 true FR2687042A1 (en) 1993-08-13

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Family Applications (1)

Application Number Title Priority Date Filing Date
FR9201898A Withdrawn FR2687042A1 (en) 1992-02-12 1992-02-12 Anti-snow device for horticultural greenhouses

Country Status (1)

Country Link
FR (1) FR2687042A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103125307A (en) * 2013-02-27 2013-06-05 张玉贵 Spray-type snow cleaning and dust removing double-cavity intermediate-ventilation arched sunlight greenhouse
CN111492858A (en) * 2020-05-18 2020-08-07 曹剑 From snow removing formula warmhouse booth structure
CN113228995A (en) * 2021-06-24 2021-08-10 黄奎 Big-arch shelter protection device for green house
CN114303723A (en) * 2021-12-24 2022-04-12 山东农业大学 Agricultural greenhouse and greenhouse using method

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103125307A (en) * 2013-02-27 2013-06-05 张玉贵 Spray-type snow cleaning and dust removing double-cavity intermediate-ventilation arched sunlight greenhouse
CN103125307B (en) * 2013-02-27 2015-07-01 张玉贵 Spray-type snow cleaning and dust removing double-cavity intermediate-ventilation arched sunlight greenhouse
CN111492858A (en) * 2020-05-18 2020-08-07 曹剑 From snow removing formula warmhouse booth structure
CN111492858B (en) * 2020-05-18 2021-10-29 湖州亿源科技发展有限公司 From snow removing formula warmhouse booth structure
CN113228995A (en) * 2021-06-24 2021-08-10 黄奎 Big-arch shelter protection device for green house
CN114303723A (en) * 2021-12-24 2022-04-12 山东农业大学 Agricultural greenhouse and greenhouse using method

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