WO2011114049A1 - Seed drill with a trailed chassis - Google Patents

Seed drill with a trailed chassis Download PDF

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Publication number
WO2011114049A1
WO2011114049A1 PCT/FR2011/050509 FR2011050509W WO2011114049A1 WO 2011114049 A1 WO2011114049 A1 WO 2011114049A1 FR 2011050509 W FR2011050509 W FR 2011050509W WO 2011114049 A1 WO2011114049 A1 WO 2011114049A1
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WO
WIPO (PCT)
Prior art keywords
lateral
section
frame
seeder according
lateral sections
Prior art date
Application number
PCT/FR2011/050509
Other languages
French (fr)
Inventor
Jean-Charles Audigie
Original Assignee
Kuhn S.A.
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 Kuhn S.A. filed Critical Kuhn S.A.
Priority to EP11713002A priority Critical patent/EP2547189A1/en
Publication of WO2011114049A1 publication Critical patent/WO2011114049A1/en

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Classifications

    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01B—SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
    • A01B73/00—Means or arrangements to facilitate transportation of agricultural machines or implements, e.g. folding frames to reduce overall width
    • A01B73/02—Folding frames
    • A01B73/06—Folding frames foldable about a vertical axis
    • A01B73/065—Folding frames foldable about a vertical axis to a position essentially forward of the axis, in relation to the direction of travel
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01C—PLANTING; SOWING; FERTILISING
    • A01C7/00—Sowing
    • A01C7/20—Parts of seeders for conducting and depositing seed
    • A01C7/208—Chassis; Coupling means to a tractor or the like; Lifting means; Side markers

Definitions

  • the present invention relates to the general technical field of agricultural machinery.
  • the invention relates to an agricultural machine such as a seed drill having a trailed frame consisting of a drawbar and a transverse bar perpendicular to the direction of advance on which sowing units are distributed, the transverse bar comprises a fixed central section equipped with wheels and two lateral sections extending on either side of said central section.
  • This agricultural machine is intended to sow seeds in the soil, for this purpose a tractor pulls a frame with a row of tools adapted to open the soil, deposit the seeds and fill the furrow, in a single operation.
  • the sowing units can optionally introduce fertilizer into the soil simultaneously with the sowing operation.
  • each sowing unit has a hopper and a dosing device.
  • the mounting of the sowing unit on the frame is done by means of a deformable parallelogram which allows it to move parallel to the ground.
  • the rotational speed of the metering device is advantageously proportional to the speed of advance of the drill.
  • lateral arms carrying sowing elements which arms are articulated from a central bar for support and are foldable along the frame drawn by pivoting.
  • the side arms are usually terminated by a wheel so as to provide an acceptable weight distribution for the work package.
  • a first disadvantage of this type of drill is that the folding arms are not always parallel to the ground, in fact the sowing units are not all located at the same level which poses a problem of arrangement of the elements and efficiency of the drill .
  • a second disadvantage related to the attachment of the arms rigidly on the central bar is that for a large deployment width of the tool the sowing elements do not always follow the relief of the field and can be totally ineffective in certain terrain configurations, especially when the field is sloping, the passage of a mound or any relief, in all these situations the outer wheel placed on the side arm will have the effect of lifting the tool as a whole and thus to clear the elements sowers of the optimal working configuration. Even when each lateral arm is mounted on the central bar via a transverse joint and the free end rests on the ground via a wheel, the sowing units carried by the corresponding lateral arm can not faithfully follow the profile of the ground.
  • the fastening of the lateral arms and the central bar thus greatly limits the possibilities of producing seed drills of large widths and hence the possibility of improving productivity related to the reduction in the number of passes to sow a field.
  • the invention thus aims to solve these main difficulties by proposing a new trailed chassis having independent lateral sections with respect to the central work member.
  • an important feature of the invention consists in that each lateral section is provided at each of its ends with a wheel and that each lateral section is articulated with the central section along at least two axes oriented in the direction of 'advanced.
  • the lateral sections provided with sowing elements can move vertically independently of the central section connected to the drawbar, in fact the machine can pass over terrain with various reliefs without losing its efficiency
  • sowing units are all at the same level with respect to the ground, so there is no more problem of positioning and adjustment necessary for all the elements are usable
  • FIG. 1 illustrates a top view of the trailed frame in working configuration in which the lateral sections are deployed and form a transverse bar with the central section.
  • Figure 2 is a rear view of the drill of Figure 1 on which the sowing elements are not shown.
  • Figure 3 is a close rear view of the drill, showing the central portion of the trailed frame.
  • FIG. 4 illustrates a view from above of the trailed frame in transport configuration in which the lateral sections are folded along the frame.
  • the drill according to the invention comprises a transverse bar (1) of large width on which are distributed sowing elements (2).
  • the transverse bar (1) is carried by a chassis trailed at the rear of a tractor, not shown in the figures and placed in the direction of advance indicated by the arrow 3, the transverse bar is perpendicular to the direction of travel of the tractor. tractor.
  • the frame of the drill consists of a support frame (4) carrying a hopper (5) containing the seeds and a drawbar (6) forming a support for the crossbar and for the various means ensuring the folding and deployment of the crossbar (1).
  • the transverse bar (1) is actually segmented into three independent elements:
  • the transverse bar (1) comprises a fixed central section (7) provided with wheels (9) and two lateral sections (8) extending from one side to the other.
  • each lateral section (8) is provided at each of its ends with a wheel (11) and each lateral section (8) articulated with the central section (7) according to at least two axes (10) oriented in the direction of advance (3) so as to place the lateral sections (8) substantially at the same height relative to the ground as the central section, as shown in FIGS. 2 and 3, this configuration being obtained when the drill is in working position.
  • each lateral section (8) is provided with two wheels (11) disposed respectively at each of its ends, the stability of the lateral sections is ensured and a good distribution of stresses.
  • Figures 2 and 3 illustrate the drill with the cross bar in the deployed position in a rear view, Figure 3 showing only the central portion of Figure 2.
  • the trailed chassis comprises in its central section (7) at least two wheels (9) to allow the movement of the machine both on the roads and in the fields, advantageously for seed drills of large widths it can be placed four wheels such that this is represented in the different figures.
  • each lateral section (8) can follow the orientation of the ground while remaining parallel during work because the pivoting around the two axes (10) is free.
  • These two axes (10) advantageously extend on either side of the inner wheel (11), that located close to the central section (7).
  • the sowing elements (2) are aligned allowing sowing over the entire width without offset given the direction of advance (3).
  • the wheels (11) of the lateral sections (8) are aligned with the wheels
  • the wheels extend between the sowing units (2), they are mounted at the rear of the crossbar (1).
  • the rotation of the lateral section (8) around the outer axis (10) is blocked by means of an actuator.
  • the actuator is advantageously a hydraulic cylinder. The blocking of this outer axis makes it possible to raise the inner wheel (11) of the ground and thus facilitate the folding. All the weight of the lateral section (8) is then transferred to the outer wheel (11).
  • the lateral sections (8) advantageously extend under the frame so that they can be folded along the frame.
  • the central section (7) also extends under the frame.
  • the lateral sections (8) and the central section (7) are arranged substantially at the same height with respect to the ground, which allows the sowing elements of the central section (7) to be aligned with the sowing elements of the lateral sections (8).
  • Each lateral section (8) is connected to the chassis via a respective link. This rod carries the axes
  • the inner axis (10) extends on the frame and the outer axis (10) extends on the lateral section (8).
  • the axes (10) are offset in height.
  • the connecting rod does not carry sowing elements (2).
  • the drill has a large working width, about 12 meters. Such a working width therefore requires a folding of the lateral sections for travel on roads and paths.
  • the chassis In its folded configuration, the chassis has a width of 3.50 meters which is consistent with the road gauge for France. This chassis principle could also be adapted to road jigs less than 3.50 meters.
  • the trailed frame comprises means for moving the lateral sections (8), which means for moving from a transport position to the working position and vice versa.
  • Figures 1, 2 and 3 show the drill in the working position
  • Figure 4 illustrates a top view of the transport position with the lateral sections (8) folded along the drawbar (6) and the frame (4).
  • each lateral section (8) is a jack (12), which jack is articulated by one end (13) with the drawbar (6) and by the other end on a hanging point (14). placed on the lateral section (8).
  • the anchoring point may advantageously be placed on an axis connecting a reinforcing arm (15) forming a connection with the bottom of the drawbar, in order to ensure a good distribution of the stresses during the movements of the lateral sections (8).
  • the trailed frame further comprises means for locking the lateral sections (8) in the working position. Which locking means are tie rods (16) connecting the drawbar or the frame (4) and each lateral section (8).
  • the tie rods (16) are shown in Figures 1 and 4 showing the top views of the drawn frame.
  • tie rods (16) are articulated so as to allow the displacement of the lateral sections (8) and comprise for each lateral section (8) three elements forming a double triangulation.
  • the tie rods (16) can be locked or unlocked manually or automatically and can then consist of cylinders controlled from the tractor.
  • the tie rods (16) When the lateral sections (8) are deployed under the action of the cylinder (12) the tie rods (16) also unfold, so that the lateral sections (8) are correctly positioned relative to the central section (7) and form the bar transverse (1). Two stops (17) are added on the central section (7) which allow the alignment of the lateral sections (8) with the said central section (7), when the jack (12) reaches the end of its travel and the deployment of sections side (8) is complete. The tie rods (16) are then locked to prevent any unwanted movement of the side parts and make the drill operational.
  • sowing units (2) are arranged at constant spacings on the crossbar (1) and are adjustable laterally.
  • the dimensions of the lateral sections (8) and the central section (7) may be more or less important and said sections may comprise a variable number of wheels without departing from the scope of the invention, even if it is desirable to limit the wheels to two side sections (8).
  • the jack (12), or the means for folding the lateral sections (8) can be positioned at different heights on the drawbar (6), or even possibly on the frame (4), and the tie rods (16) can be more or shorter and have variable anchoring points on the lateral sections (8), there may also be more tie rods than those described, without departing from the scope of the invention.
  • the sowing elements (2) can be chosen indifferently from those known, have or not a seed feed hopper or be connected to an external feed hopper, without departing from the scope of the invention.
  • the preferred folding mode is that in which the lateral sections (8) pivot in a horizontal plane to be positioned along the drawbar (6), it could be envisaged in a variant, even if this is less favorable, a folding of the sections lateral in a vertical plane, without departing from the scope of the invention.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Soil Sciences (AREA)
  • Environmental Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sowing (AREA)
  • Agricultural Machines (AREA)

Abstract

The present invention relates to a seed drill having a trailed chassis consisting of a drawbar (6) and of a crossbar (1) perpendicular to the direction of forward travel (3), on which crossbar seeding elements (2) are distributed, the crossbar (1) comprising a fixed central portion (7) fitted with wheels (9), and two lateral portions (8) extending one on each side of said central portion (7), characterized in that each lateral portion (8) is fitted at each of its ends with a wheel (11) and in that each lateral portion (8) is articulated to the central portion (7) about at least two axes (10) directed in the direction of forward travel (3).

Description

SEMOIR AVEC UN CHASSIS TRAINE  SEMOIR WITH A CHASSIS TRAINE
La présente invention se rapporte au domaine technique général du machinisme agricole. L'invention concerne une machine agricole telle qu'un semoir présentant un châssis traîné constitué d'un timon et d'une barre transversale perpendiculaire à la direction d'avance sur laquelle sont répartis des éléments semeurs, la barre transversale comporte un tronçon central fixe muni de roues et deux tronçons latéraux s'étendant de part et d'autre dudit tronçon central. The present invention relates to the general technical field of agricultural machinery. The invention relates to an agricultural machine such as a seed drill having a trailed frame consisting of a drawbar and a transverse bar perpendicular to the direction of advance on which sowing units are distributed, the transverse bar comprises a fixed central section equipped with wheels and two lateral sections extending on either side of said central section.
Cette machine agricole est destinée à semer des graines dans le sol, dans ce but un tracteur tire un châssis comportant une rangée d'outils adaptés pour ouvrir le sol, déposer les graines et reboucher le sillon, cela en une seule opération. Les éléments semeurs peuvent éventuellement introduire de l'engrais dans le sol simultanément avec l'opération de semis. This agricultural machine is intended to sow seeds in the soil, for this purpose a tractor pulls a frame with a row of tools adapted to open the soil, deposit the seeds and fill the furrow, in a single operation. The sowing units can optionally introduce fertilizer into the soil simultaneously with the sowing operation.
Outre le dispositif d'implantation chaque élément semeur possède une trémie et un dispositif de dosage. Le montage de l'élément semeur sur le châssis se fait au moyen d'un parallélogramme déformable qui lui permet de se déplacer parallèlement au sol. Afin de garantir un dosage homogène des graines, la vitesse de rotation du dispositif de dosage est avantageusement proportionnelle à la vitesse d'avance du semoir. In addition to the implantation device, each sowing unit has a hopper and a dosing device. The mounting of the sowing unit on the frame is done by means of a deformable parallelogram which allows it to move parallel to the ground. In order to guarantee a homogeneous dosage of the seeds, the rotational speed of the metering device is advantageously proportional to the speed of advance of the drill.
Pour des raisons de productivité il est souhaitable de réaliser des machines de grandes capacités qui permettent de semer sur une surface au sol la plus grande possible, soit donc une machine permettant un minimum de passages dans le champ, ces machines sont donc conçues avec des largeurs aussi grandes que cela est techniquement réalisable. For reasons of productivity, it is desirable to produce machines with large capacities that make it possible to sow on as large a surface as possible, ie a machine allowing a minimum of passages in the field, these machines are therefore designed with widths as large as this is technically feasible.
Ces machines de grandes largeurs posent des problèmes de transport pour les déplacer d'un espace de travail à un autre sur les voies publiques. La solution retenue pour des machines agricoles de ce type est de segmenter l'outil de travail en plusieurs éléments dont certains se replient afin de réduire la largeur de la machine dans sa configuration de transport. These large-width machines pose transport problems for moving them from one workspace to another on public roads. The solution adopted for agricultural machines of this type is to segment the work tool into several elements, some of which fold in order to reduce the width of the machine in its transport configuration.
Pour les semoirs traînés il est connu de placer des bras latéraux porteurs d'éléments semeurs, lesquels bras sont articulés depuis une barre centrale servant de support et sont repliables le long du châssis tracté par pivotement. Les bras latéraux sont usuellement terminés par une roue de manière à assurer une répartition de poids acceptable pour l'ensemble de travail. For trailed seeders it is known to place lateral arms carrying sowing elements, which arms are articulated from a central bar for support and are foldable along the frame drawn by pivoting. The side arms are usually terminated by a wheel so as to provide an acceptable weight distribution for the work package.
Un premier inconvénient de ce type de semoir est que les bras repliables ne sont pas toujours parallèles au sol, de fait les éléments semeurs ne sont pas tous situés au même niveau ce qui pose un problème d'agencement des éléments et d'efficacité du semoir. A first disadvantage of this type of drill is that the folding arms are not always parallel to the ground, in fact the sowing units are not all located at the same level which poses a problem of arrangement of the elements and efficiency of the drill .
Un deuxième inconvénient lié à la fixation des bras de manière rigide sur la barre centrale est que pour une grande largeur de déploiement de l'outil les éléments semeurs ne suivent plus toujours le relief du champ et peuvent être totalement inefficaces dans certaines configurations de terrain, notamment lorsque le champ est en pente, au passage d'une butte ou d'un relief quelconque, dans toutes ces situations la roue externe placée sur le bras latéral aura pour effet de soulever l'outil dans son ensemble et donc de dégager les éléments semeurs de la configuration optimale de travail. Même lorsque chaque bras latéral est monté sur la barre centrale via une articulation transversale et que l'extrémité libre s'appuie sur le sol via une roue, les éléments semeurs portés par le bras latéral correspondant ne peuvent pas suivre fidèlement le profil du terrain. A second disadvantage related to the attachment of the arms rigidly on the central bar is that for a large deployment width of the tool the sowing elements do not always follow the relief of the field and can be totally ineffective in certain terrain configurations, especially when the field is sloping, the passage of a mound or any relief, in all these situations the outer wheel placed on the side arm will have the effect of lifting the tool as a whole and thus to clear the elements sowers of the optimal working configuration. Even when each lateral arm is mounted on the central bar via a transverse joint and the free end rests on the ground via a wheel, the sowing units carried by the corresponding lateral arm can not faithfully follow the profile of the ground.
La solidarisation des bras latéraux et de la barre centrale limite donc fortement les possibilités de réalisation de semoirs de grandes largeurs et par là donc la possibilité d'amélioration de productivité liée à la diminution du nombre de passages pour semer un champ. L'invention a ainsi pour objectif de résoudre ces principales difficultés en proposant un nouveau châssis traîné disposant de tronçons latéraux indépendants par rapport à l'organe de travail central. The fastening of the lateral arms and the central bar thus greatly limits the possibilities of producing seed drills of large widths and hence the possibility of improving productivity related to the reduction in the number of passes to sow a field. The invention thus aims to solve these main difficulties by proposing a new trailed chassis having independent lateral sections with respect to the central work member.
A cet effet, une importante caractéristique de l'invention consiste en ce que chaque tronçon latéral est muni à chacune de ses extrémités d'une roue et que chaque tronçon latéral est articulé avec le tronçon central selon au moins deux axes orientés dans la direction d'avance. For this purpose, an important feature of the invention consists in that each lateral section is provided at each of its ends with a wheel and that each lateral section is articulated with the central section along at least two axes oriented in the direction of 'advanced.
Les avantages du châssis traîné selon l'invention sont multiples : The advantages of the trailed frame according to the invention are multiple:
- les tronçons latéraux munis d'éléments semeurs peuvent se déplacer verticalement indépendamment du tronçon central relié au timon, de fait la machine peut passer sur des terrains avec des reliefs variés sans perdre son efficacité, the lateral sections provided with sowing elements can move vertically independently of the central section connected to the drawbar, in fact the machine can pass over terrain with various reliefs without losing its efficiency,
- en raison du positionnement des tronçons latéraux, les éléments semeurs se trouvent tous au même niveau par rapport au sol, il n'y a donc plus de problème de positionnement et d'ajustement nécessaire pour que tous les éléments soient utilisables, - Due to the positioning of the lateral sections, the sowing units are all at the same level with respect to the ground, so there is no more problem of positioning and adjustment necessary for all the elements are usable,
- du fait que chaque tronçon latéral possède deux roues, et non pas une seule comme sur les semoirs connus, les contraintes mécaniques sont mieux réparties et les problèmes de maintenance réduits, - en raison des avantages précédents la dimension des tronçons latéraux peut être augmentée par rapport au matériel connu, ce qui se traduit par une plus grande largeur de traitement du champ en un seul passage, soit donc une réduction du nombre de déplacements du tracteur dans le champ et donc un gain de temps appréciable pour l'agriculteur. D'autres caractéristiques et avantages de l'invention se dégageront de la description qui va suivre en regard des dessins annexés qui ne sont donnés qu'à titre d'exemples non limitatifs. La figure 1 illustre une vue de dessus du châssis traîné en configuration de travail dans laquelle les tronçons latéraux sont déployés et forment une barre transversale avec le tronçon central. - Because each side section has two wheels, not one as on the known seeders, mechanical stresses are better distributed and maintenance problems reduced, - because of the previous advantages the dimension of the lateral sections can be increased by compared to the known material, which results in a greater width of treatment of the field in a single passage, thus a reduction of the number of movements of the tractor in the field and thus an appreciable saving of time for the farmer. Other features and advantages of the invention will become apparent from the description which follows with reference to the accompanying drawings which are given by way of non-limiting examples. Figure 1 illustrates a top view of the trailed frame in working configuration in which the lateral sections are deployed and form a transverse bar with the central section.
La figure 2 est une vue arrière du semoir de la figure 1 sur laquelle les éléments semeurs ne sont pas représentés. Figure 2 is a rear view of the drill of Figure 1 on which the sowing elements are not shown.
La figure 3 est une vue arrière rapprochée du semoir, montrant la partie centrale du châssis traîné. Figure 3 is a close rear view of the drill, showing the central portion of the trailed frame.
La figure 4 illustre une vue de dessus du châssis traîné en configuration de transport dans laquelle les tronçons latéraux sont repliés le long du châssis. Comme le montre la figure 1 le semoir selon l'invention comporte une barre transversale (1) de grande largeur sur laquelle sont répartis des éléments semeurs (2). FIG. 4 illustrates a view from above of the trailed frame in transport configuration in which the lateral sections are folded along the frame. As shown in Figure 1 the drill according to the invention comprises a transverse bar (1) of large width on which are distributed sowing elements (2).
La barre transversale (1) est portée par un châssis traîné à l'arrière d'un tracteur, non représenté sur les figures et placé dans la direction d'avance indiquée par la flèche 3, la barre transversale est perpendiculaire au sens de déplacement du tracteur. The transverse bar (1) is carried by a chassis trailed at the rear of a tractor, not shown in the figures and placed in the direction of advance indicated by the arrow 3, the transverse bar is perpendicular to the direction of travel of the tractor. tractor.
Le châssis du semoir est constitué d'un cadre support (4) porteur d'une trémie (5) contenant les graines et d'un timon (6) formant support pour la barre transversale et pour les différents moyens assurant le repliement et le déploiement de la barre transversale (1). The frame of the drill consists of a support frame (4) carrying a hopper (5) containing the seeds and a drawbar (6) forming a support for the crossbar and for the various means ensuring the folding and deployment of the crossbar (1).
La barre transversale (1) est segmentée en fait en trois éléments indépendants : The transverse bar (1) is actually segmented into three independent elements:
- un tronçon central (7) directement relié à l'extrémité du timon (6) et solidaire du châssis, - A central section (7) directly connected to the end of the drawbar (6) and secured to the frame,
- deux tronçons latéraux (8) articulés avec le tronçon central et comportant une latitude de déplacement dans le plan vertical. Les tronçons latéraux (8) et le tronçon central (7) sont porteurs des éléments semeurs (2) répartis à intervalles réguliers tout le long de la barre transversale (1), lorsque celle-ci est configurée en position de travail, c'est-à-dire dans la représentation de la figure 1. Selon l'invention la barre transversale (1) comporte un tronçon central (7) fixe muni de roues (9) et deux tronçons latéraux (8) s' étendant de part et d'autre dudit tronçon central, chaque tronçon latéral (8) est muni à chacune de ses extrémités d'une roue (11) et chaque tronçon latéral (8) articulé avec le tronçon central (7) selon au moins deux axes (10) orientés dans la direction d'avance (3) de manière à placer les tronçons latéraux (8) sensiblement à la même hauteur par rapport au sol que le tronçon central, tel que cela est représenté sur les figures 2 et 3, cette configuration étant obtenue lorsque le semoir est en position de travail. Comme chaque tronçon latéral (8) est muni de deux roues (11) disposées respectivement à chacune de ses extrémités, la stabilité des tronçons latéraux est assurée ainsi qu'une bonne répartition des contraintes. - Two lateral sections (8) articulated with the central section and having a latitude of displacement in the vertical plane. The lateral sections (8) and the central section (7) carry the sowing elements (2) distributed at regular intervals all along the transverse bar (1), when the latter is configured in the working position, it is that is to say in the representation of FIG. 1. According to the invention the transverse bar (1) comprises a fixed central section (7) provided with wheels (9) and two lateral sections (8) extending from one side to the other. other said central section, each lateral section (8) is provided at each of its ends with a wheel (11) and each lateral section (8) articulated with the central section (7) according to at least two axes (10) oriented in the direction of advance (3) so as to place the lateral sections (8) substantially at the same height relative to the ground as the central section, as shown in FIGS. 2 and 3, this configuration being obtained when the drill is in working position. As each lateral section (8) is provided with two wheels (11) disposed respectively at each of its ends, the stability of the lateral sections is ensured and a good distribution of stresses.
Les figures 2 et 3 illustrent le semoir avec la barre transversale en position déployée selon une vue arrière, la figure 3 montrant uniquement la partie centrale de la figure 2. Figures 2 and 3 illustrate the drill with the cross bar in the deployed position in a rear view, Figure 3 showing only the central portion of Figure 2.
Le châssis traîné comporte dans son tronçon central (7) au moins deux roues (9) pour permettre le déplacement de la machine à la fois sur les routes et dans les champs, avantageusement pour des semoirs de grandes largeurs il peut être placé quatre roues telles que cela est représenté sur les différentes figures. The trailed chassis comprises in its central section (7) at least two wheels (9) to allow the movement of the machine both on the roads and in the fields, advantageously for seed drills of large widths it can be placed four wheels such that this is represented in the different figures.
Grâce aux deux axes (10) et aux deux roues (11), chaque tronçon latéral (8) peut suivre l'orientation du sol en lui restant parallèle lors du travail car le pivotement autour des deux axes (10) est libre. Ces deux axes (10) s'étendent avantageusement de part et d'autre de la roue (11) intérieure, celle située proche du tronçon central (7). A la lumière de la figure 1, on remarque que les éléments semeurs (2) sont alignés permettant un semis sur toute la largeur sans décalage compte tenu de la direction d'avance (3). Les roues (11) des tronçons latéraux (8) sont alignées avec les rouesThanks to the two axes (10) and the two wheels (11), each lateral section (8) can follow the orientation of the ground while remaining parallel during work because the pivoting around the two axes (10) is free. These two axes (10) advantageously extend on either side of the inner wheel (11), that located close to the central section (7). In the light of Figure 1, it is noted that the sowing elements (2) are aligned allowing sowing over the entire width without offset given the direction of advance (3). The wheels (11) of the lateral sections (8) are aligned with the wheels
(9) du tronçon central (7). Les roues s'étendent entre les éléments semeurs (2), elles sont montées à l'arrière de la barre transversale (1). (9) of the central section (7). The wheels extend between the sowing units (2), they are mounted at the rear of the crossbar (1).
Pour le repliage, la rotation du tronçon latéral (8) autour de l'axe (10) extérieur est bloquée au moyen d'un actionneur. L'actionneur est avantageusement un vérin hydraulique. Le blocage de cet axe extérieur permet de relever la roue (11) intérieure du sol et ainsi faciliter le repliage. Tout le poids du tronçon latéral (8) est alors transféré sur la roue (11) extérieure. For folding, the rotation of the lateral section (8) around the outer axis (10) is blocked by means of an actuator. The actuator is advantageously a hydraulic cylinder. The blocking of this outer axis makes it possible to raise the inner wheel (11) of the ground and thus facilitate the folding. All the weight of the lateral section (8) is then transferred to the outer wheel (11).
Les tronçons latéraux (8) s'étendent avantageusement sous le châssis de manière à ce qu'ils puissent être repliés le long du châssis. Le tronçon central (7) s'étend également sous le châssis. Les tronçons latéraux (8) et le tronçon central (7) sont disposés sensiblement à la même hauteur par rapport au sol ce qui permet aux éléments semeurs du tronçon central (7) d'être alignés avec les éléments semeurs des tronçons latéraux (8) compte tenu de la direction d'avance (3). Chaque tronçon latéral (8) est relié au châssis via une bielle respective. Cette bielle porte les axesThe lateral sections (8) advantageously extend under the frame so that they can be folded along the frame. The central section (7) also extends under the frame. The lateral sections (8) and the central section (7) are arranged substantially at the same height with respect to the ground, which allows the sowing elements of the central section (7) to be aligned with the sowing elements of the lateral sections (8). considering the direction in advance (3). Each lateral section (8) is connected to the chassis via a respective link. This rod carries the axes
(10) . L'axe (10) intérieur s'étend sur le châssis et l'axe (10) extérieur s'étend sur le tronçon latéral (8). Les axes (10) sont décalés en hauteur. La bielle ne porte pas d'éléments semeurs (2). (10). The inner axis (10) extends on the frame and the outer axis (10) extends on the lateral section (8). The axes (10) are offset in height. The connecting rod does not carry sowing elements (2).
Le semoir présente une grande largeur de travail, environ 12 mètres. Une telle largeur de travail impose donc un repliement des tronçons latéraux pour les déplacements sur les routes et chemins. Dans sa configuration repliée, le châssis présente une largeur de 3,50 mètres qui est conforme au gabarit routier pour la France. Ce principe de châssis pourrait s'adapter aussi à des gabarits routiers inférieurs à 3,50 mètres. The drill has a large working width, about 12 meters. Such a working width therefore requires a folding of the lateral sections for travel on roads and paths. In its folded configuration, the chassis has a width of 3.50 meters which is consistent with the road gauge for France. This chassis principle could also be adapted to road jigs less than 3.50 meters.
Selon l'invention le châssis traîné comporte des moyens pour déplacer les tronçons latéraux (8), lesquels moyens permettant de passer d'une position de transport à la position de travail et inversement. Les figures 1, 2 et 3 montrent le semoir en position de travail, la figure 4 illustre en vue de dessus la position de transport avec les tronçons latéraux (8) repliés le long du timon (6) et du cadre (4). According to the invention the trailed frame comprises means for moving the lateral sections (8), which means for moving from a transport position to the working position and vice versa. Figures 1, 2 and 3 show the drill in the working position, Figure 4 illustrates a top view of the transport position with the lateral sections (8) folded along the drawbar (6) and the frame (4).
Avantageusement le moyen de déplacement de chaque tronçon latéral (8) est un vérin (12), lequel vérin est articulé par une extrémité (13) avec le timon (6) et par l'autre extrémité sur un point d'accroché (14) placé sur le tronçon latéral (8). Advantageously, the displacement means of each lateral section (8) is a jack (12), which jack is articulated by one end (13) with the drawbar (6) and by the other end on a hanging point (14). placed on the lateral section (8).
Le point d'ancrage peut avantageusement être placé sur un axe reliant un bras (15) de renforcement formant liaison avec le bas du timon, afin d'assurer une bonne répartition des contraintes lors des déplacements des tronçons latéraux (8). Selon l'invention le châssis traîné comporte en outre des moyens de verrouillage des tronçons latéraux (8) dans la position de travail. Lesquels moyens de verrouillage sont des tirants (16) reliant le timon ou le cadre (4) et chaque tronçon latéral (8). The anchoring point may advantageously be placed on an axis connecting a reinforcing arm (15) forming a connection with the bottom of the drawbar, in order to ensure a good distribution of the stresses during the movements of the lateral sections (8). According to the invention the trailed frame further comprises means for locking the lateral sections (8) in the working position. Which locking means are tie rods (16) connecting the drawbar or the frame (4) and each lateral section (8).
Les tirants (16) sont représentés sur les figures 1 et 4 illustrant les vues de dessus du châssis tiré. The tie rods (16) are shown in Figures 1 and 4 showing the top views of the drawn frame.
Avantageusement au sens de l'invention les tirants (16) sont articulés de manière à permettre le déplacement des tronçons latéraux (8) et comportent pour chaque tronçon latéral (8) trois éléments formant une double triangulation. Advantageously in the sense of the invention the tie rods (16) are articulated so as to allow the displacement of the lateral sections (8) and comprise for each lateral section (8) three elements forming a double triangulation.
Les tirants (16) peuvent être verrouillés ou déverrouillés manuellement ou automatiquement et peuvent alors être constitués de vérins commandés depuis le tracteur. The tie rods (16) can be locked or unlocked manually or automatically and can then consist of cylinders controlled from the tractor.
Lorsque les tronçons latéraux (8) sont déployés sous l'action du vérin (12) les tirants (16) se déplient également, afin que les tronçons latéraux (8) soient correctement positionnés par rapport au tronçon central (7) et forment la barre transversale (1). Il est ajouté sur le tronçon central (7) deux butées (17) qui permettent l'alignement des tronçons latéraux (8) avec ledit tronçon central (7), lorsque le vérin (12) arrive en bout de course et que le déploiement des tronçons latéraux (8) est complet. Les tirants (16) sont ensuite verrouillés pour éviter tout déplacement non souhaité des parties latérales et rendre le semoir opérationnel. When the lateral sections (8) are deployed under the action of the cylinder (12) the tie rods (16) also unfold, so that the lateral sections (8) are correctly positioned relative to the central section (7) and form the bar transverse (1). Two stops (17) are added on the central section (7) which allow the alignment of the lateral sections (8) with the said central section (7), when the jack (12) reaches the end of its travel and the deployment of sections side (8) is complete. The tie rods (16) are then locked to prevent any unwanted movement of the side parts and make the drill operational.
Afin de répartir de manière régulière les graines dans le champ les éléments semeurs (2) sont disposés à écartements constants sur la barre transversale (1) et sont réglables latéralement. In order to evenly distribute the seeds in the field the sowing units (2) are arranged at constant spacings on the crossbar (1) and are adjustable laterally.
Plusieurs variantes du châssis traîné sont possibles, les dimensions des tronçons latéraux (8) et du tronçon central (7) peuvent être plus ou moins importantes et lesdits tronçons peuvent comporter un nombre variable de roues sans sortir du cadre de l'invention, même s'il est souhaitable de limiter à deux les roues sur les tronçons latéraux (8). Several variants of the trailed frame are possible, the dimensions of the lateral sections (8) and the central section (7) may be more or less important and said sections may comprise a variable number of wheels without departing from the scope of the invention, even if it is desirable to limit the wheels to two side sections (8).
Le vérin (12), ou le moyen de repliement des tronçons latéraux (8), peut être positionné à différentes hauteurs sur le timon (6), ou même éventuellement sur le cadre (4), et les tirants (16) peuvent être plus ou moins longs et disposer de points d'ancrages variables sur les tronçons latéraux (8), il peut également y avoir plus de tirants que ceux décrits, sans sortir du cadre de l'invention. The jack (12), or the means for folding the lateral sections (8), can be positioned at different heights on the drawbar (6), or even possibly on the frame (4), and the tie rods (16) can be more or shorter and have variable anchoring points on the lateral sections (8), there may also be more tie rods than those described, without departing from the scope of the invention.
Les éléments semeurs (2) peuvent, être choisis indifféremment parmi ceux connus, disposer ou pas d'une trémie d'alimentation en graines ou, être reliés à une trémie d'alimentation externe, sans sortir du cadre de l'invention. The sowing elements (2) can be chosen indifferently from those known, have or not a seed feed hopper or be connected to an external feed hopper, without departing from the scope of the invention.
Le mode de repliement préféré est celui dans lequel les tronçons latéraux (8) pivotent dans un plan horizontal pour se positionner le long du timon (6), il pourrait être envisagé dans une variante, même si cela est moins favorable, un repliement des tronçons latéraux dans un plan vertical, sans sortir du cadre de l'invention. The preferred folding mode is that in which the lateral sections (8) pivot in a horizontal plane to be positioned along the drawbar (6), it could be envisaged in a variant, even if this is less favorable, a folding of the sections lateral in a vertical plane, without departing from the scope of the invention.
Bien entendu, l'invention n'est pas limitée aux modes de réalisation décrits et représentés à titre d'exemples, mais elle comprend aussi tous les équivalents techniques ainsi que leurs combinaisons. Of course, the invention is not limited to the embodiments described and represented by way of examples, but it also includes all the technical equivalents as well as their combinations.

Claims

REVENDICATIONS
1- Semoir présentant un châssis traîné constitué d'un timon (6) et d'une barre transversale (1) perpendiculaire à la direction d'avance (3) sur laquelle sont répartis des éléments semeurs (2), la barre transversale (1) comporte un tronçon central (7) fixe muni de roues (9) et deux tronçons latéraux (8) s'étendant de part et d'autre dudit tronçon central (7), caractérisé en ce que chaque tronçon latéral (8) est muni à chacune de ses extrémités d'une roue (11) et que chaque tronçon latéral (8) est articulé avec le tronçon central (7) selon au moins deux axes (10) orientés dans la direction d'avance (3). 2- Semoir selon la revendication 1, caractérisé en ce que chaque tronçon latéral (8) est relié au châssis via une bielle respective portant lesdits deux axes (10). 1- Seeder having a trailed frame consisting of a drawbar (6) and a transverse bar (1) perpendicular to the direction of advance (3) on which are distributed sowing units (2), the transverse bar (1 ) comprises a fixed central section (7) provided with wheels (9) and two lateral sections (8) extending on either side of said central section (7), characterized in that each lateral section (8) is provided with at each of its ends a wheel (11) and that each lateral section (8) is articulated with the central section (7) in at least two axes (10) oriented in the direction of advance (3). 2- Seeder according to claim 1, characterized in that each lateral section (8) is connected to the frame via a respective connecting rod carrying said two axes (10).
3- Semoir selon la revendication 1 ou 2, caractérisé en ce que l'axe intérieur s'étend sur le châssis et l'axe extérieur s'étend sur le tronçon latéral (8). 3- seed drill according to claim 1 or 2, characterized in that the inner axis extends on the frame and the outer axis extends on the lateral section (8).
4- Semoir selon l'une quelconque des revendications 1 à 3, caractérisé en ce que les deux axes (10) sont décalés en hauteur. 4- Seeder according to any one of claims 1 to 3, characterized in that the two axes (10) are offset in height.
5- Semoir selon l'une quelconque des revendications 1 à 4, caractérisé en ce que les deux axes (10) s'étendent de part et d'autre de la roue intérieure. 5- seed drill according to any one of claims 1 to 4, characterized in that the two axes (10) extend on either side of the inner wheel.
6- Semoir selon l'une quelconque des revendications 1 à 5, caractérisé en ce qu'il comporte des moyens pour déplacer les tronçons latéraux (8), lesquels moyens permettant de passer d'une position de transport à la position de travail et inversement. 6- Seeder according to any one of claims 1 to 5, characterized in that it comprises means for moving the lateral sections (8), which means for moving from a transport position to the working position and vice versa .
7- Semoir selon la revendication 6, caractérisé en ce que le moyen de déplacement de chaque tronçon latéral (8) est un vérin (12), lequel vérin (12) est articulé par une extrémité avec le timon (6) et par l'autre extrémité sur un point d'accroché (14) placé sur le tronçon latéral (8). 8- Semoir selon l'une quelconque des revendications 1 à 7, caractérisé en ce qu'il comporte des moyens de verrouillage des tronçons latéraux (8) dans la position de travail. 7- Seeder according to claim 6, characterized in that the displacement means of each lateral section (8) is a jack (12), which cylinder (12) is articulated by one end with the drawbar (6) and by the another end on a hanging point (14) placed on the lateral section (8). 8- Seeder according to any one of claims 1 to 7, characterized in that it comprises means for locking the lateral sections (8) in the working position.
9- Semoir selon la revendication 8, caractérisé en ce que les moyens de verrouillage sont des tirants (16) reliant le timon (6) ou le cadre (4) et chaque tronçon latéral (8). 9- Seeder according to claim 8, characterized in that the locking means are tie rods (16) connecting the drawbar (6) or the frame (4) and each lateral section (8).
10- Semoir selon la revendication 9, caractérisé en ce que les tirants (16) sont articulés de manière à permettre le déplacement des tronçons latéraux (8) et comportent pour chaque tronçon latéral (8) trois éléments formant une double triangulation. 10- Seeder according to claim 9, characterized in that the tie rods (16) are articulated so as to allow the displacement of the lateral sections (8) and comprise for each side section (8) three elements forming a double triangulation.
11- Semoir selon la revendication 9 ou 10, caractérisé en ce que les tirants (16) sont verrouillés ou déverrouillés automatiquement et sont constitués de vérins commandés depuis le tracteur agricole. 11- Seeder according to claim 9 or 10, characterized in that the tie rods (16) are locked or unlocked automatically and consist of cylinders controlled from the agricultural tractor.
12- Semoir selon l'une quelconque des revendications précédentes, caractérisé en ce que pour le repliage, la rotation de chaque tronçon latéral (8) autour de l'axe extérieur respectif est bloquée au moyen d'un actionneur. 12- seed drill according to any one of the preceding claims, characterized in that for folding, the rotation of each lateral section (8) around the respective outer axis is blocked by means of an actuator.
13- Semoir selon l'une quelconque des revendications précédentes, caractérisé en ce que les tronçons latéraux (8) s'étendent sous le châssis en configuration de transport. 13- Seeder according to any one of the preceding claims, characterized in that the lateral sections (8) extend under the frame in transport configuration.
PCT/FR2011/050509 2010-03-15 2011-03-14 Seed drill with a trailed chassis WO2011114049A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP11713002A EP2547189A1 (en) 2010-03-15 2011-03-14 Seed drill with a trailed chassis

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1051813 2010-03-15
FR1051813A FR2957221B1 (en) 2010-03-15 2010-03-15 SEMOIR WITH A CHASSIS TRAINE

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WO2011114049A1 true WO2011114049A1 (en) 2011-09-22

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FR (1) FR2957221B1 (en)
WO (1) WO2011114049A1 (en)

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FR2957221A1 (en) 2011-09-16
EP2547189A1 (en) 2013-01-23

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