FR2847765A1 - Leaf stripping method for viticulture, involves generating airflow upstream of cutter in airflow direction, to trim vegetation, where airflow is tangential to vegetation - Google Patents
Leaf stripping method for viticulture, involves generating airflow upstream of cutter in airflow direction, to trim vegetation, where airflow is tangential to vegetation Download PDFInfo
- Publication number
- FR2847765A1 FR2847765A1 FR0215040A FR0215040A FR2847765A1 FR 2847765 A1 FR2847765 A1 FR 2847765A1 FR 0215040 A FR0215040 A FR 0215040A FR 0215040 A FR0215040 A FR 0215040A FR 2847765 A1 FR2847765 A1 FR 2847765A1
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- FR
- France
- Prior art keywords
- vegetation
- air flow
- cutting
- cutting means
- airflow
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- 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.)
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Classifications
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- 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
- A01G17/00—Cultivation of hops, vines, fruit trees, or like trees
- A01G17/02—Cultivation of hops or vines
- A01G17/026—Machines for removing leaves of vines
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- Life Sciences & Earth Sciences (AREA)
- Botany (AREA)
- Environmental Sciences (AREA)
- Soil Working Implements (AREA)
Abstract
Description
PROCEDE D'EFFEUILLAGE ET DISPOSITIF POUR SA MISE EN OEUVREHATCHING PROCESS AND DEVICE FOR IMPLEMENTING IT
La présente invention se rapporte à un procédé d'effeuillage ainsi qu'à un dispositif pour sa mise en oeuvre. The present invention relates to a stripping process and to a device for its implementation.
L'effeuillage est pratiqué en viticulture afin de couper une partie de la végétation, notamment au niveau des grappes, de manière à favoriser le mrissement. Les dispositifs existants fonctionnent tous selon un principe sensiblement identique consistant à générer un flux d'aspiration redressant les feuilles en amont d'un outil de coupe afin de les couper. Ces dispositifs comprennent généralement une tête se déplaçant parallèlement au rang de vigne comportant 10 des moyens de coupe, sous forme par exemple d'une barre de coupe, ainsi que des moyens d'aspiration créant une dépression favorisant le redressement des feuilles afin de les couper. Leaf stripping is practiced in viticulture in order to cut part of the vegetation, in particular at the level of the bunches, so as to favor ripening. The existing devices all operate on a substantially identical principle consisting in generating a suction flow straightening the sheets upstream of a cutting tool in order to cut them. These devices generally comprise a head moving parallel to the row of vines comprising cutting means, in the form for example of a cutting bar, as well as suction means creating a depression favoring the straightening of the leaves in order to cut them. .
tans tous les cas, les moyens générant le flux d'aspiration sont disposés en aval par rapport aux moyens de coupe, selon le sens du flux, si bien que les éléments 15 coupés tels que les feuilles, brindilles ou analogues traversent lesdits moyens. En conséquence, il est nécessaire de prévoir des moyens d'aspiration sous forme de ventilateur à pâles robustes qui ont nécessairement un faible rendement. in all cases, the means generating the suction flow are arranged downstream relative to the cutting means, in the direction of the flow, so that the cut elements such as leaves, twigs or the like pass through said means. Consequently, it is necessary to provide suction means in the form of a robust paddle fan which necessarily have a low efficiency.
Par ailleurs, selon cette technique, il est nécessaire de prévoir des moyens d'aspiration au niveau de chaque tête d'effeuillage compte tenu du faible 20 rendement. Furthermore, according to this technique, it is necessary to provide suction means at each stripping head taking into account the low yield.
Aussi, la présente invention propose un nouveau procédé d'effeuillage visant à pallier les inconvénients des procédés et dispositifs de l'art antérieur. Also, the present invention provides a new stripping method aimed at overcoming the drawbacks of the methods and devices of the prior art.
A cet effet, l'invention a pour objet un procédé d'effeuillage consistant à créer un flux d'air susceptible de redresser la végétation à l'avant de moyens de coupe, caractérisé en ce que le flux d'air est généré en amont des moyens de coupe selon le sens d'écoulement dudit flux. De la sorte, les éléments coupés ne 5 traversent plus les moyens susceptibles de générer le flux d'air si bien qu'on peut utiliser des moyens spécifiques à haut rendement et ne prévoir qu'un seul générateur de flux pour plusieurs moyens de coupe. To this end, the subject of the invention is a stripping process consisting in creating an air flow capable of straightening the vegetation in front of cutting means, characterized in that the air flow is generated upstream cutting means in the direction of flow of said flow. In this way, the cut elements no longer pass through the means capable of generating the air flow, so that specific high-efficiency means can be used and only one flow generator can be provided for several cutting means.
Avantageusement, le flux d'air est sensiblement tangent à la végétation à l'avant des moyens de coupe. Ainsi, ce flux tangent permet d'agiter la végétation 10 et/ou de créer un flux d'entraînement, par effet venturi, permettant le redressement de la végétation à l'avant des moyens de coupe. Advantageously, the air flow is substantially tangent to the vegetation in front of the cutting means. Thus, this tangent flow makes it possible to agitate the vegetation 10 and / or to create a entrainment flow, by venturi effect, allowing the vegetation to straighten out in front of the cutting means.
Selon une autre caractéristique, une pression est exercée sur la végétation par des moyens de plaquage disposés à l'avant des moyens de coupe, le flux d'air étant susceptible d'agiter et/ou d'entraîner la végétation au droit de 15 l'espacement ménagé entre les moyens de plaquage et les moyens de coupe. According to another characteristic, pressure is exerted on the vegetation by plating means disposed in front of the cutting means, the air flow being capable of agitating and / or entraining the vegetation at right angles to 15 l space between the plating means and the cutting means.
Ainsi, la végétation plaquée tend à se redresser au droit des moyens de coupe grâce à ses propriétés élastiques naturelles. Thus, the plated vegetation tends to straighten up to the right of the cutting means thanks to its natural elastic properties.
L'invention propose également un dispositif pour la mise en oeuvre dudit procédé d'effeuillage. D'autres caractéristiques et avantages ressortiront de la description qui va suivre de l'invention, description donnée à titre d'exemple uniquement, en regard des dessins annexés sur lesquels; - la figure 1 est un schéma illustrant le procédé d'effeuillage selon l'invention, - la figure 2A est une vue en coupe transversale illustrant une partie d'une tête 25 d'effeuillage, et - la figure 2B est une vue en élévation latérale de la partie de la tête d'effeuillage représentée sur la figure 2A. The invention also provides a device for implementing said stripping process. Other characteristics and advantages will emerge from the description which follows of the invention, description given by way of example only, with reference to the appended drawings in which; - Figure 1 is a diagram illustrating the stripping method according to the invention, - Figure 2A is a cross-sectional view illustrating a part of a stripping head, and - Figure 2B is an elevational view lateral view of the part of the stripping head shown in FIG. 2A.
Sur la figure 1, on a représenté en 10 un rang de vigne et en 12 une tête d'effeuillage comportant des moyens 14 permettant de couper une partie de la végétation afin de favoriser le mrissement. In Figure 1, there is shown in 10 a row of vines and in 12 a stripping head comprising means 14 for cutting a part of the vegetation to promote ripening.
Selon l'invention, le procédé d'effeuillage consiste à générer un flux d'air à 5 partir de moyens 16, soufflants, disposés en amont des moyens 14 de coupe. According to the invention, the stripping method consists in generating an air flow from means 16, blowers, arranged upstream of the cutting means 14.
Ainsi, les éléments coupés tels que les feuilles, brindilles ou autres sont éjectées à l'arrière des moyens de coupe et ne traversent plus les moyens 16 générant le flux d'air. Par conséquent, il est possible de prévoir des moyens 16 sous forme d'un ventilateur à haut rendement, tel qu'un ventilateur à pales doubles formant 10 cage, les éléments coupés ne traversant plus lesdits moyens. Thus, the cut elements such as leaves, twigs or the like are ejected behind the cutting means and no longer pass through the means 16 generating the air flow. Consequently, it is possible to provide means 16 in the form of a high-efficiency fan, such as a double-blade fan forming a cage, the cut elements no longer passing through said means.
Par ailleurs, le fait de pouvoir utiliser un ventilateur à haut rendement permet de prévoir qu'un seul générateur de flux ou ventilateur pour plusieurs têtes d'effeuillage, le flux d'air étant acheminé au droit de chaque moyen de coupe grâce à des conduits flexibles. Furthermore, the fact of being able to use a high-efficiency fan makes it possible to provide for a single flow generator or fan for several stripping heads, the air flow being routed in line with each cutting means by means of ducts. flexible.
Avantageusement, le flux d'air généré est sensiblement tangent à la végétation à couper, à l'avant des moyens 14 de coupe. Ainsi, ce flux permet d'agiter la végétation à l'avant des moyens de coupe et/ou de créer un flux d'entraînement, par effet venturi, permettant le redressement de la végétation à l'avant des moyens de coupe. Advantageously, the air flow generated is substantially tangent to the vegetation to be cut, at the front of the cutting means 14. Thus, this flow makes it possible to agitate the vegetation at the front of the cutting means and / or to create a driving flow, by venturi effect, allowing the vegetation to be straightened at the front of the cutting means.
Selon une autre caractéristique de l'invention, une plaque 18 est disposée en avant des moyens 14 de coupe, un espacement 20 étant prévu entre la plaque 18 et les moyens 14, le flux d'air étant susceptible d'agiter et/ou d'entraîner la végétation au droit de cet espacement 20. According to another characteristic of the invention, a plate 18 is disposed in front of the cutting means 14, a space 20 being provided between the plate 18 and the means 14, the air flow being capable of agitating and / or d '' drive the vegetation to the right of this spacing 20.
La plaque 18 est susceptible d'exercer une pression sur la végétation si bien que 25 cette dernière par effet élastique tend à se redresser au niveau de l'espacement 20 améliorant la coupe. The plate 18 is capable of exerting pressure on the vegetation so that the latter by elastic effect tends to straighten out at the level of the spacing 20 improving the cut.
Par ailleurs, le flux d'air éjecté au niveau du bord de la plaque 18 délimitant l'espacement 20 crée une ondulation de la végétation, un creusement 22 puis par effet élastique de la végétation une crête 24 juste à l'avant des moyens 14 de coupe assurant la taille de la végétation. Furthermore, the air flow ejected at the edge of the plate 18 delimiting the spacing 20 creates an undulation of the vegetation, a digging 22 and then by elastic effect of the vegetation a crest 24 just in front of the means 14 of cutting ensuring the size of the vegetation.
Selon une autre caractéristique de l'invention, la vitesse du flux d'air à l'avant des moyens de coupe est augmentée afin d'accroître l'agitation de la végétation 5 et le flux d'entraînement par effet venturi. A cet effet, la section 26 du conduit canalisant le flux d'air et débouchant au niveau de l'espacement 20 est réduite. Selon un mode de réalisation préféré et illustré par les figures 2A et 2B, les moyens 14 de coupe comportent une barre de coupe 28 ainsi qu'un peigne 30 10 dont les fourches en saillie à l'avant de la barre de coupe 28 permettent de maintenir la végétation en position redressée améliorant la coupe. According to another characteristic of the invention, the speed of the air flow at the front of the cutting means is increased in order to increase the agitation of the vegetation 5 and the drive flow by the venturi effect. To this end, the section 26 of the duct channeling the air flow and opening at the level of the spacing 20 is reduced. According to a preferred embodiment and illustrated by FIGS. 2A and 2B, the cutting means 14 comprise a cutting bar 28 as well as a comb 30 10 whose forks projecting in front of the cutting bar 28 make it possible to keep the vegetation in an upright position improving the cut.
Selon un autre avantage, les moyens 14 de coupe comportent des moyens 32 de protection limitant l'accès à la barre de coupe à des éléments d'une certaine grosseur. Ainsi, les grappes sont préservées et ne sont pas endommagées par les 15 moyens 14 de coupe. Selon un mode de réalisation, ces moyens 32 de protection se présentent sous la forme d'une pluralité de tiges sensiblement parallèles entre elles dont l'espacement est adapté pour limiter l'accès aux moyens de coupe. Enfin, selon une autre caractéristique, un conduit 34 en forme de tuyère est 20 prévu en aval des moyens 14 de coupe assurant le guidage du flux d'air d'éjection et des éléments coupés. According to another advantage, the cutting means 14 include protection means 32 limiting access to the cutter bar to elements of a certain size. Thus, the clusters are preserved and are not damaged by the cutting means 14. According to one embodiment, these protection means 32 are in the form of a plurality of substantially parallel rods, the spacing of which is adapted to limit access to the cutting means. Finally, according to another characteristic, a duct 34 in the form of a nozzle is provided downstream of the cutting means 14 ensuring the guiding of the flow of ejection air and of the cut elements.
Claims (10)
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0215040A FR2847765B1 (en) | 2002-11-29 | 2002-11-29 | SLEEPING METHOD AND DEVICE FOR IMPLEMENTING IT |
PCT/FR2003/050142 WO2004049781A1 (en) | 2002-11-29 | 2003-11-28 | Leaf-stripping method, leaf-stripping head used for same and leaf stripper comprising said head |
AU2003295077A AU2003295077A1 (en) | 2002-11-29 | 2003-11-28 | Leaf-stripping method, leaf-stripping head used for same and leaf stripper comprising said head |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0215040A FR2847765B1 (en) | 2002-11-29 | 2002-11-29 | SLEEPING METHOD AND DEVICE FOR IMPLEMENTING IT |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2847765A1 true FR2847765A1 (en) | 2004-06-04 |
FR2847765B1 FR2847765B1 (en) | 2005-09-09 |
Family
ID=32309841
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR0215040A Expired - Fee Related FR2847765B1 (en) | 2002-11-29 | 2002-11-29 | SLEEPING METHOD AND DEVICE FOR IMPLEMENTING IT |
Country Status (1)
Country | Link |
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FR (1) | FR2847765B1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10184751B2 (en) | 2015-11-30 | 2019-01-22 | Maruzen Company Limited | Toy gun |
Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB733679A (en) * | 1953-05-05 | 1955-07-13 | Phillips Curtis Mcclellan | Improvements in or relating to grain harvesting machines |
FR2406384A1 (en) * | 1977-10-21 | 1979-05-18 | Dagnaud Jacques | Vine defoliator mounted at side of tractor - has inverted U=shaped frame with blower on one side directed towards cutting rotor on other side of vine row |
US4430849A (en) * | 1981-11-03 | 1984-02-14 | Powell Manufacturing Co. | Harvester for tea or the like |
DE3424664A1 (en) * | 1984-07-05 | 1986-04-10 | Maschinenfabrik Bermatingen GmbH & Co, 7775 Bermatingen | Ground-working machine |
US4757670A (en) * | 1986-04-21 | 1988-07-19 | Phillip Kinch | Agricultural crop defoliator |
EP0894429A1 (en) * | 1997-07-29 | 1999-02-03 | ERO-GERÄTEBAU GmbH | Trimming plant device |
DE29820759U1 (en) * | 1998-11-20 | 1999-02-18 | Lanz Franz | Device for pruning young plants in cultivation plates and potted plants |
FR2808964A1 (en) * | 2000-05-19 | 2001-11-23 | Pellenc Sa | Leaf stripper for vine leaves has stripping head with rotary open mesh drum having suction source and cutter |
CH692834A5 (en) * | 1998-09-25 | 2002-11-29 | Michel Monnard | Equipment for thinning out leaves of growing vines involves generating air flow directed towards row of plants, leaves being cut simultaneously ahead of air flow |
-
2002
- 2002-11-29 FR FR0215040A patent/FR2847765B1/en not_active Expired - Fee Related
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB733679A (en) * | 1953-05-05 | 1955-07-13 | Phillips Curtis Mcclellan | Improvements in or relating to grain harvesting machines |
FR2406384A1 (en) * | 1977-10-21 | 1979-05-18 | Dagnaud Jacques | Vine defoliator mounted at side of tractor - has inverted U=shaped frame with blower on one side directed towards cutting rotor on other side of vine row |
US4430849A (en) * | 1981-11-03 | 1984-02-14 | Powell Manufacturing Co. | Harvester for tea or the like |
DE3424664A1 (en) * | 1984-07-05 | 1986-04-10 | Maschinenfabrik Bermatingen GmbH & Co, 7775 Bermatingen | Ground-working machine |
US4757670A (en) * | 1986-04-21 | 1988-07-19 | Phillip Kinch | Agricultural crop defoliator |
EP0894429A1 (en) * | 1997-07-29 | 1999-02-03 | ERO-GERÄTEBAU GmbH | Trimming plant device |
CH692834A5 (en) * | 1998-09-25 | 2002-11-29 | Michel Monnard | Equipment for thinning out leaves of growing vines involves generating air flow directed towards row of plants, leaves being cut simultaneously ahead of air flow |
DE29820759U1 (en) * | 1998-11-20 | 1999-02-18 | Lanz Franz | Device for pruning young plants in cultivation plates and potted plants |
FR2808964A1 (en) * | 2000-05-19 | 2001-11-23 | Pellenc Sa | Leaf stripper for vine leaves has stripping head with rotary open mesh drum having suction source and cutter |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10184751B2 (en) | 2015-11-30 | 2019-01-22 | Maruzen Company Limited | Toy gun |
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Publication number | Publication date |
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FR2847765B1 (en) | 2005-09-09 |
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