WO1997015177A1 - Towed reversible plough with variable working width and device for recentering the frame to the return axis - Google Patents

Towed reversible plough with variable working width and device for recentering the frame to the return axis Download PDF

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Publication number
WO1997015177A1
WO1997015177A1 PCT/FR1996/001681 FR9601681W WO9715177A1 WO 1997015177 A1 WO1997015177 A1 WO 1997015177A1 FR 9601681 W FR9601681 W FR 9601681W WO 9715177 A1 WO9715177 A1 WO 9715177A1
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WO
WIPO (PCT)
Prior art keywords
axis
frame
parallelogram
offset
jack
Prior art date
Application number
PCT/FR1996/001681
Other languages
French (fr)
Inventor
Bernard Naud
Original Assignee
Charrues Naud
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 Charrues Naud filed Critical Charrues Naud
Priority to AU73089/96A priority Critical patent/AU7308996A/en
Priority to EP96934981A priority patent/EP0857014A1/en
Priority to RO98-00896A priority patent/RO117059B1/en
Priority to PL96326363A priority patent/PL326363A1/en
Priority to BR9611246-8A priority patent/BR9611246A/en
Publication of WO1997015177A1 publication Critical patent/WO1997015177A1/en
Priority to BG102406A priority patent/BG102406A/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
    • A01B15/00—Elements, tools, or details of ploughs
    • A01B15/14—Frames
    • A01B15/145—Frames the plough blades being connected to the plough beam for unisono adjustment of the furrow width

Definitions

  • the present invention relates to a mounted reversible plow of the variable working width type, provided with a device for refocusing the frame to facilitate the turning operation.
  • refocusing the frame for the turning operation may cause the offset and / or the working width to be adjusted per body.
  • the present invention provides an improvement which makes it possible to avoid, during the refocusing and turning operation, any modification of the offset and / or working width settings. This advantage also results in a reduction in the wear of the mechanisms and in particular of all the axes which make it possible to orient the plowing bodies and to maintain this orientation with respect to the frame which carries said bodies.
  • the plow consists of a frame provided with plowing bodies which are each articulated around an axis positioned vertically when the plow is in the normal working position, and which are connected together by a linkage which maintains parallel to each other, which frame is connected to the coupling and turning head by means of a drawbar, by means of a frame axis and a head axis each located at the 'one of the ends of said drawbar, which axes are mutually parallel and vertical when ia plow is in normal working position.
  • the drawbar is arranged near the axis longitudinal traction and constitutes the first side of the offset parallelogram which also comprises - a second side consisting of the transverse beam which is provided with the head axis of the drawbar, - a third side parallel to said drawbar, also articulated on said beam , and - a fourth side consisting of a crosspiece parallel to said beam.
  • the fourth side of the offset parallelogram serves as a starting point for another parallelogram, also deformable under the effect of a jack which makes it possible to adjust the slope and the working width between the bodies by tilting the frame relative to the longitudinal axis traction.
  • the offset parallelogram comprises, on its side parallel to the drawbar, a centering cylinder which is articulated on the support arm and which makes it possible to tilt said drawbar and any plow around the head axis.
  • the offset parallelogram comprises, between the sides adjacent to the drawbar, an intermediate cross member articulated substantially at mid-length of said drawbar, which cross member divides said parallelogram into two parallelograms: - a first parallelogram between the transverse beam and said intermediate cross member and
  • the first parallelogram comprises, arranged parallel to the drawbar, a side consisting of the refocusing cylinder which makes it possible to tilt the whole of the frame carried by said drawbar, relative to the head axis, in order to carry out a refocusing of said built on the turning axis without modifying the working width and offset settings.
  • the invention also relates to particular means associated with the offset parallelogram, which make it possible to carry out an automatic correction of the distance of the first body relative to the wheel of the tractor which rolls in the furrow, as the working width of the plow bodies changes.
  • the actuating cylinder of the offset parallelogram is articulated at one of its ends on the intermediate cross member by means of an axis located along the length of said intermediate cross member, and at its other end by means of d 'an axis mounted on a leg integral with the frame, the two axes of said actuating cylinder form with the axis of the frame, the vertices of a triangle whose side which corresponds to the leg of the frame has a fixed length, whose side constituted by the offset cylinder has a fixed or adjustable length as the case may be, and the third side of which has a variable length either under the effect of said offset cylinder, or under the effect of the tilt or width adjustment cylinder of work, which causes, simultaneously and advantageously, the offset correction.
  • the actuator for adjusting the working width is interposed between an axis mounted on a yoke fixed to the frame and an axis mounted on the central cross member opposite the axis of the frame.
  • FIG. 1 represents, in the form of a simplified functional diagram, a reversible plow of the type with variable working width, before refocusing its frame;
  • the plow shown diagrammatically in Figures 1 and 2 includes a coupling head 1 associated with the lifting arms of a tractor not shown.
  • This head is provided with an axis 2 on which a transverse beam 3 is articulated.
  • This beam 3 is manipulated by conventional turning means, not shown, which make it possible to make a U-turn around the axis 2.
  • the frame 4 of the plow is connected to the beam 3 by means of a drawbar 5.
  • This drawbar is articulated on the beam 3 by means of a head axis T arranged near the turning axis 2.
  • the frame 4 is articulated on the drawbar 5 around a frame axis B located at the other end of said drawbar.
  • the drawbar 5 carries the frame 4 and the various plowing bodies 6 mounted on said frame 4.
  • This type of reversible plow carried may include for example five or six plowing bodies.
  • Each plowing body 6 is articulated on the frame 4 by means of a body axis C, C1.
  • These axes C, C1 ..., make it possible to modify the difference Z between two bodies, that is to say the working width by adjusting the inclination V of the frame 4 relative to the longitudinal axis 7
  • the bodies remain parallel to each other by means of a rod 8 which interconnects the cranks 9 used to operate said bodies.
  • these bodies 6 are connected to the transverse beam 3 of the coupling head, by means of parallelograms: - a first parallelogram defined by the axes A, B, T, E, corresponds to the offset parallelogram, - a second parallelogram defined by the axes A, B, C, D corresponds to the superelevation parallelogram or for adjusting the working width, and - parallelograms defined by the frame 4, the rod 8 and the crank 9.
  • the parallelogram ABCD is materialized, for its first side BC, by a portion of the frame 4.
  • the second side CD consists of a crank 92 which is integral with the age 13 of the second body 62.
  • the third side AD consists of a connecting rod 11 which can be of adjustable length.
  • the CD side materialized by the crank 92 is parallel to the fourth side AB of the working width adjustment parallelogram.
  • the AB side is materialized by a cross member 16, common to the offset parallelogram and to the tilt adjustment parallelogram.
  • This cross 16 is parallel to the transverse beam 3 which constitutes the second TE side of the offset parallelogram.
  • the other two sides of this offset parallelogram consist of the drawbar 5 which forms the first side, and by a juxtaposition of two elements constituted for one of a jack 17 and for the other of a connecting rod 18 positioned in the alignment of the jack 17 which together form the third side.
  • This jack 17 and the connecting rod 18 constitute the side AE of the offset parallelogram. Maintaining the alignment of the jack 17 and the connecting rod 18, which are connected together by an axis F, is effected by means of an intermediate crosspiece 19 which is articulated on said axis F and, on the drawbar 5, by means of an axis G.
  • the ABTE offset parallelogram comprises two parallelograms: the ABGF parallelogram consisting of the cross member 16, of a portion corresponding for example to half of the drawbar 5, of an intermediate cross member 19 parallel to the cross member 16 and a connecting rod 18 parallel to the drawbar 5.
  • the second parallelogram EFGT consists of the jack 17 which is parallel to the drawbar 5, of the intermediate cross member 19, of the other portion of the drawbar 5 and of the beam 3.
  • the ABTE parallelogram makes it possible, depending on the type of tractor used to pull the plow and in particular depending on the track of the tractor, to adjust the distance X of the first body 61 relative to the wheel 20 of the tractor which rolls in the line.
  • This wheel 20 is located at a distance Y from the turning axis 2, that is to say at a distance which is equal to half of the track of the tractor.
  • the offset is adjusted by means of a jack 21 which modifies the geometry of the ABTE offset parallelogram.
  • This cylinder 21 is interposed between the intermediate cross member 19 and an arm 22 secured to the frame 4.
  • the jack 21 is mounted on an axis 23 and it is mounted on an axis 24 at its other end, integral with the arm 22.
  • the axis 23 is located along the length of the intermediate crosspiece 19.
  • the axis 24 is located at a distance from the axis B which is greater than or equal to that which separates the axis 23 from the axis G.
  • the working width Z that is to say the space between two bodies 6, is adjusted by adjusting the angle V made by the frame 4 with the longitudinal axis of traction 7.
  • This adjustment of the angle of the frame 4 is effected by means of a jack 25 interposed for example between a yoke 26 disposed on said frame 4 and for example, a tab 27 arranged at the end of the central crosspiece 16.
  • the jack 25 can also be mounted on the axis A and the axis 28 of the yoke 26.
  • the actuation of the jack 25 causes a deformation of the offset parallelogram by means of the arm 22 and of the jack 21.
  • the deformation of the triangle B, 23, 24 allows, as and when the working width is modified Z between the bodies 6, correct in the same direction the distance X between the first body 61 and the wheel 20 of the tractor which is positioned in the previous groove.
  • FIG. 2 represents the position of the frame 4 and the drawbar 5 after pivoting about the axis T, under the effect of the jack 17.
  • the jacks 21 and 25 remain blocked and they keep the geometry of the different parallelograms. This avoids operating the different axes of the mechanism for adjusting the working width and the offset.
  • This jack 17 simply has the function of varying the angle between the transverse beam 3 and the drawbar 5 to facilitate the turning operation of the frame of the plow.
  • FIG. 3 represents an alternative embodiment also presented in the form of a functional diagram.
  • the frame 4 is carried by the drawbar 5, which drawbar 5 is articulated on the beam 3 around d 'a head axis T and on the frame around a frame axis B.
  • the frame 4 comprises the bodies 6 which are connected together by a rod 8 and the cranks 9.
  • the bodies 6 are kept aligned with respect to the longitudinal axis 7 by means of the parallelograms ABCD and ABTE, and the parallelograms of the bodies' connection to each other.
  • the ABTE parallelogram or offset parallelogram includes the drawbar 5, ia beam 3, a jack 17 'parallel to the drawbar 5 which extends between the axes E and A and a cross member AB detailed below.
  • the parallelogram ABCD comprises the cross-member AB, detailed below, a portion of frame between B and C, a crank 92 between C and D, and a connecting rod 11 between A and B, which connecting rod can be adjustable, consisting of a turnbuckle.
  • the superelevation parallelogram ABCD deforms mainly under the effect of the actuator 25, which actuator varies the angle V between the frame and the longitudinal axis 7.
  • the offset parallelogram ABTE is deformable under the effect of a jack 21. This jack 21 is interposed between the drawbar 5 and in particular the axis G 'and the cross member AB.
  • the cross member AB which is common to the offset parallelogram and to the superelevation parallelogram, consists of an arm 22 secured to the frame 4, which extends between A and B.
  • This cross member AB is completed by a lever in the form of an organ rocker 30 which is articulated between its two ends, at an axis 31 located at the end of the arm 22.
  • This rocker extends on one side between axis 31 and axis A and on the other side between the axis 31 and an axis 32 associated with the end of the jack 21. In the middle position, the axes 31 and 32 are substantially on the line AB.
  • the ratio between the branch 33 of the rocker 30, located between the axis 31 and the axis A, and the branch 34 located between the axis 31 and the axis 32, is of the order of 2.
  • the axis 31 is located at a distance of B which is of the order of 2/3 of the distance AB.
  • the axis G ' is located along the length of the drawbar 5, substantially halfway between the axes B and T, offset towards the inside of the ABTE parallelogram, at a distance from the straight line BT which is of the order of the TE distance VA.
  • the axes A, G ', 32 form a triangle whose side formed by the rocker 30 has a fixed length.
  • the side formed by the jack 21 has a length which varies according to the adjustment of the offset and the side G'A has a length which varies under the effect of the jack 21 or under the effect of the jack 25 which is used for adjusting the working width.
  • an action of the jack 25 to modify the working width of the plow has an effect on the offset by varying the distance G'A.
  • an action on the jack 25 to increase the working width that is to say increase the angle V of the frame 4 relative to the axis 7, will modify the distance G'A in the direction d 'An increase which will have the effect of removing the plow from the wall 35 and especially to establish an offset, that is to say a distance X which corresponds substantially to the width Z between two consecutive bodies.
  • the side AE of the ABCE parallelogram comprises a jack 17 ′.
  • This actuator when actuated, rotates the entire plow around the axis T allowing the center of gravity of said plow to be moved to approach it from the longitudinal axis 7.
  • This action on the actuator 17 ' has no effect on the adjustment of the working width and on the adjustment of the offset.
  • the jack 21 which is used to adjust the offset can be replaced by a turnbuckle.

Abstract

The plough comprises, in the offset parallelogram ABTE, a jack which provides for the recentering of the frame with respect to the return axis, without modifying the adjustments of the working width and of the offset. This jack is one of the sides of the offset parallelogram. According to one embodiment, it is positioned between the transverse beam (3) and an axis (F) situated midway of the side AE of the offset parallelogram. The offset jack (21) is arranged between the intermediate traverse rod (19) which divides the offset parallelogram and an arm (22) of the frame (4), in order to provide for an automatic correction of the offset of the first body with respect to the tractor upon adjusting the working width.

Description

CHARRUE REVERSIBLE PORTEE A LARGEUR VARIABLE AVEC DISPOSITIF DE RECENTRAGE DU BATI SUR L'AXE DE RETOURNEMENTREVERSIBLE PLOW WIDTH WITH VARIABLE WIDTH WITH DEVICE FOR CENTERING THE FRAME ON THE TURNING AXIS
La présente invention concerne une charrue réversible portée du type à largeur de travail variable, munie d'un dispositif de recentrage du bâti pour faciliter l'opération de retournement.The present invention relates to a mounted reversible plow of the variable working width type, provided with a device for refocusing the frame to facilitate the turning operation.
Le retournement des charrues réversibles présente parfois des difficultés du fait de la longueur du bâti, lorsque le nombre de corps est important. Pour éviter une interférence entre l'extrémité arrière du bâti et le terrain, il est nécessaire de relever la charrue et en plus de la recentrer sur l'axe de retournement.The reversal of reversible plows sometimes presents difficulties due to the length of the frame, when the number of bodies is large. To avoid interference between the rear end of the frame and the ground, it is necessary to raise the plow and in addition to center it on the turning axis.
Dans le cas des charrues réversibles munies d'un dispositif permettant de régler la largeur de travail, le recentrage du bâti pour l'opération de retournement peut entraîner le déréglage du déport et/ou de la largeur de travail par corps.In the case of reversible plows fitted with a device making it possible to adjust the working width, refocusing the frame for the turning operation may cause the offset and / or the working width to be adjusted per body.
La présente invention propose un perfectionnement qui permet d'éviter, lors de l'opération de recentrage et de retournement, toute modification des réglages de déport et/ou de largeur de travail. De cet avantage, découle également une réduction de l'usure des mécanismes et en particulier de tous les axes qui permettent d'orienter les corps de labour et de maintenir cette orientation par rapport au bâti qui porte lesdits corps.The present invention provides an improvement which makes it possible to avoid, during the refocusing and turning operation, any modification of the offset and / or working width settings. This advantage also results in a reduction in the wear of the mechanisms and in particular of all the axes which make it possible to orient the plowing bodies and to maintain this orientation with respect to the frame which carries said bodies.
Selon l'invention, la charrue est constituée d'un bâti muni de corps de labour qui sont articulés chacun autour d'un axe positionné verticalement lorsque la charrue est en position normale de travail, et qui sont reliés entre eux par une tringierie qui les maintient parallèles les uns par rapport aux autres, lequel bâti est relié à la tête d'attelage et de retournement au moyen d'un timon, par l'intermédiaire d'un axe de bâti et d'un axe de tête situés chacun à l'une des extrémités dudit timon, lesquels axes sont parallèles entre eux et verticaux lorsque ia charrue est en position normale de travail. Le timon est disposé à proximité de l'axe longitudinal de traction et constitue le premier côté du parallélogramme de déport qui comprend par ailleurs - un deuxième côté constitué de la poutre transversale qui est munie de l'axe de tête du timon, - un troisième côté parallèle audit timon, articulé sur ladite poutre également, et - un quatrième côté constitué d'une traverse parallèle à ladite poutre. Le quatrième côté du parallélogramme de déport sert de départ pour un autre parallélogramme, déformable également sous l'effet d'un vérin qui permet de régler le dévers et la largeur de travail entre les corps en inclinant le bâti par rapport à l'axe longitudinal de traction. Ces deux parallélogrammes permettent de maintenir l'orientation de l'ensemble des corps de labour par rapport à l'axe longitudinal grâce à un autre système de parallélogramme disposé entre les différents corps de labour. Le parallélogramme de déport comporte, sur son côté parallèle au timon, un vérin de recentrage qui est articulé sur le bras support et qui permet de faire basculer ledit timon et toute ia charrue autour de l'axe de tête.According to the invention, the plow consists of a frame provided with plowing bodies which are each articulated around an axis positioned vertically when the plow is in the normal working position, and which are connected together by a linkage which maintains parallel to each other, which frame is connected to the coupling and turning head by means of a drawbar, by means of a frame axis and a head axis each located at the 'one of the ends of said drawbar, which axes are mutually parallel and vertical when ia plow is in normal working position. The drawbar is arranged near the axis longitudinal traction and constitutes the first side of the offset parallelogram which also comprises - a second side consisting of the transverse beam which is provided with the head axis of the drawbar, - a third side parallel to said drawbar, also articulated on said beam , and - a fourth side consisting of a crosspiece parallel to said beam. The fourth side of the offset parallelogram serves as a starting point for another parallelogram, also deformable under the effect of a jack which makes it possible to adjust the slope and the working width between the bodies by tilting the frame relative to the longitudinal axis traction. These two parallelograms make it possible to maintain the orientation of all the plowing bodies with respect to the longitudinal axis by means of another parallelogram system arranged between the different plowing bodies. The offset parallelogram comprises, on its side parallel to the drawbar, a centering cylinder which is articulated on the support arm and which makes it possible to tilt said drawbar and any plow around the head axis.
Selon un premier mode de réalisation, le parallélogramme de déport comprend, entre les côtés adjacents au timon, une traverse intermédiaire articulée sensiblement à mi-longueur dudit timon, laquelle traverse divise ledit parallélogramme en deux parallélogrammes : - un premier parallélogramme entre la poutre transversale et ladite traverse intermédiaire etAccording to a first embodiment, the offset parallelogram comprises, between the sides adjacent to the drawbar, an intermediate cross member articulated substantially at mid-length of said drawbar, which cross member divides said parallelogram into two parallelograms: - a first parallelogram between the transverse beam and said intermediate cross member and
- un second parallélogramme entre ladite traverse intermédiaire et la traverse commune au parallélogramme de déport et au parallélogramme de dévers. Le premier parallélogramme comporte, disposé parallèlement au timon, un côté constitué du vérin de recentrage qui permet d'effectuer un basculement de l'ensemble du bâti porté par ledit timon, par rapport à l'axe de tête, afin de réaliser un recentrage dudit bâti sur l'axe de retournement sans modifier les réglages de largeur de travail et de déport. L'invention concerne également des moyens particuliers associés au parallélogramme de déport, qui permettent de réaliser une correction automatique de la distance du premier corps par rapport à la roue du tracteur qui roule dans le sillon, au fur et à mesure de la modification de la largeur de travail des corps de labour.- A second parallelogram between said intermediate cross member and the cross member common to the offset parallelogram and to the superelevation parallelogram. The first parallelogram comprises, arranged parallel to the drawbar, a side consisting of the refocusing cylinder which makes it possible to tilt the whole of the frame carried by said drawbar, relative to the head axis, in order to carry out a refocusing of said built on the turning axis without modifying the working width and offset settings. The invention also relates to particular means associated with the offset parallelogram, which make it possible to carry out an automatic correction of the distance of the first body relative to the wheel of the tractor which rolls in the furrow, as the working width of the plow bodies changes.
Pour parvenir à ce résultat, le vérin de manoeuvre du parallélogramme de déport est articulé à l'une de ses extrémités sur la traverse intermédiaire au moyen d'un axe situé sur la longueur de ladite traverse intermédiaire, et à son autre extrémité au moyen d'un axe monté sur une patte solidaire du bâti, les deux axes dudit vérin de manoeuvre forment avec l'axe du bâti, les sommets d'un triangle dont le côté qui correspond à la patte du bâti a une longueur fixe, dont le côté constitué par le vérin de déport a une longueur fixe ou réglable selon le cas, et dont ie troisième côté a une longueur variable soit sous l'effet dudit vérin de déport, soit sous l'effet du vérin de réglage du dévers ou de la largeur de travail, qui provoque, simultanément et avantageusement, la correction de déport. Toujours selon l'invention, le vérin de réglage de la largeur de travail est interposé entre un axe monté sur une chape solidaire du bâti et un axe monté sur la traverse centrale à l'opposé de l'axe du bâti.To achieve this result, the actuating cylinder of the offset parallelogram is articulated at one of its ends on the intermediate cross member by means of an axis located along the length of said intermediate cross member, and at its other end by means of d 'an axis mounted on a leg integral with the frame, the two axes of said actuating cylinder form with the axis of the frame, the vertices of a triangle whose side which corresponds to the leg of the frame has a fixed length, whose side constituted by the offset cylinder has a fixed or adjustable length as the case may be, and the third side of which has a variable length either under the effect of said offset cylinder, or under the effect of the tilt or width adjustment cylinder of work, which causes, simultaneously and advantageously, the offset correction. Still according to the invention, the actuator for adjusting the working width is interposed between an axis mounted on a yoke fixed to the frame and an axis mounted on the central cross member opposite the axis of the frame.
L'invention sera encore détaillée à l'aide de la description suivante et des dessins annexés donnés à titre indicatif et dans lesquels : - la figure 1 représente, sous forme de schéma fonctionnel simplifié, une charrue réversible du type à largeur de travail variable, avant recentrage de son bâti ;The invention will be further detailed with the aid of the following description and of the appended drawings given by way of indication and in which: FIG. 1 represents, in the form of a simplified functional diagram, a reversible plow of the type with variable working width, before refocusing its frame;
- la figure 2 représente la charrue de la figure 1 lors de l'opération de recentrage du bâti sur l'axe de retournement ; - la figure 3 représente une variante de réalisation.- Figure 2 shows the plow of Figure 1 during the recentering operation of the frame on the turning axis; - Figure 3 shows an alternative embodiment.
La charrue représentée schematiquement figures 1 et 2, comporte une tête d'attelage 1 associée aux bras de relevage d'un tracteur non représenté. Cette tête est munie d'un axe 2 sur lequel est articulée une poutre transversale 3. Cette poutre 3 est manipulée par des moyens classiques de retournement, non représentés, qui permettent de réaliser un demi-tour autour de l'axe 2. Le bâti 4 de la charrue est relié à la poutre 3 au moyen d'un timon 5. Ce timon est articulé sur la poutre 3 au moyen d'un axe de tête T disposé à proximité de l'axe de retournement 2. Le bâti 4 est articulé sur le timon 5 autour d'un axe de bâti B situé à l'autre extrémité dudit timon. Le timon 5 porte le bâti 4 et les différents corps de labour 6 montés sur ledit bâti 4. Ce type de charrue réversible portée peut comporter par exemple cinq ou six corps de labour.The plow shown diagrammatically in Figures 1 and 2 includes a coupling head 1 associated with the lifting arms of a tractor not shown. This head is provided with an axis 2 on which a transverse beam 3 is articulated. This beam 3 is manipulated by conventional turning means, not shown, which make it possible to make a U-turn around the axis 2. The frame 4 of the plow is connected to the beam 3 by means of a drawbar 5. This drawbar is articulated on the beam 3 by means of a head axis T arranged near the turning axis 2. The frame 4 is articulated on the drawbar 5 around a frame axis B located at the other end of said drawbar. The drawbar 5 carries the frame 4 and the various plowing bodies 6 mounted on said frame 4. This type of reversible plow carried may include for example five or six plowing bodies.
Chaque corps de labour 6 est articulé sur le bâti 4 au moyen d'un axe de corps C, C1. Ces axes C, C1..., permettent de modifier l'écart Z entre deux corps, c'est-à-dire la largeur de travail par un réglage de l'inclinaison V du bâti 4 par rapport à l'axe longitudinal 7. Les corps restent parallèles entre eux au moyen d'une tringle 8 qui relie entre elles les manivelles 9 servant à manoeuvrer lesdits corps.Each plowing body 6 is articulated on the frame 4 by means of a body axis C, C1. These axes C, C1 ..., make it possible to modify the difference Z between two bodies, that is to say the working width by adjusting the inclination V of the frame 4 relative to the longitudinal axis 7 The bodies remain parallel to each other by means of a rod 8 which interconnects the cranks 9 used to operate said bodies.
Pour maintenir l'orientation des corps 6 par rapport au plan médian passant par l'axe 7, ces corps 6 sont reliés à la poutre transversale 3 de la tête d'attelage, au moyen de parallélogrammes : - un premier parallélogramme défini par les axes A, B, T, E, correspond au parallélogramme de déport, - un second parallélogramme défini par les axes A, B, C, D correspond au parallélogramme de dévers ou de réglage de la largeur de travail, et - des parallélogrammes définis par le bâti 4, la tringle 8 et la manivelle 9.To maintain the orientation of the bodies 6 relative to the median plane passing through the axis 7, these bodies 6 are connected to the transverse beam 3 of the coupling head, by means of parallelograms: - a first parallelogram defined by the axes A, B, T, E, corresponds to the offset parallelogram, - a second parallelogram defined by the axes A, B, C, D corresponds to the superelevation parallelogram or for adjusting the working width, and - parallelograms defined by the frame 4, the rod 8 and the crank 9.
Le parallélogramme ABCD est matérialisé, pour son premier côté BC, par une portion du bâti 4.The parallelogram ABCD is materialized, for its first side BC, by a portion of the frame 4.
Le second côté CD est constitué d'une manivelle 92 qui est solidaire de l'âge 13 du second corps 62.The second side CD consists of a crank 92 which is integral with the age 13 of the second body 62.
Le troisième côté AD est constitué d'une bielle 11 qui peut être de longueur réglable.The third side AD consists of a connecting rod 11 which can be of adjustable length.
Le côté CD matérialisé par la manivelle 92 est parallèle au quatrième côté AB du parallélogramme de réglage de largeur de travail. Le côté AB est matérialisé par une traverse 16, commune au parallélogramme de déport et au parallélogramme de réglage de dévers.The CD side materialized by the crank 92 is parallel to the fourth side AB of the working width adjustment parallelogram. The AB side is materialized by a cross member 16, common to the offset parallelogram and to the tilt adjustment parallelogram.
Cette traverse 16 est parallèle à la poutre transversale 3 qui constitue le second côté TE du parallélogramme de déport. Les deux autres côtés de ce parallélogramme de déport sont constitués par le timon 5 qui forme le premier côté, et par une juxtaposition de deux éléments constitués pour l'un d'un vérin 17 et pour l'autre d'une bielle 18 positionnée dans l'alignement du vérin 17 qui forment ensemble le troisième côté. Ce vérin 17 et la bielle 18 constituent le côté AE du parallélogramme de déport. Le maintien de l'alignement du vérin 17 et de la bielle 18, qui sont reliés entre eux par un axe F, s'effectue au moyen d'une traverse intermédiaire 19 qui est articulée sur ledit axe F et, sur le timon 5, au moyen d'un axe G. Ainsi, le parallélogramme de déport ABTE comprend deux parallélogramme : le parallélogramme ABGF constitué de la traverse 16, d'une portion correspondant par exemple à la moitié du timon 5, d'une traverse intermédiaire 19 parallèle à la traverse 16 et d'une bielle 18 parallèle au timon 5. Le second parallélogramme EFGT est constitué du vérin 17 qui est parallèle au timon 5, de ia traverse intermédiaire 19, de l'autre portion du timon 5 et de la poutre 3.This cross 16 is parallel to the transverse beam 3 which constitutes the second TE side of the offset parallelogram. The other two sides of this offset parallelogram consist of the drawbar 5 which forms the first side, and by a juxtaposition of two elements constituted for one of a jack 17 and for the other of a connecting rod 18 positioned in the alignment of the jack 17 which together form the third side. This jack 17 and the connecting rod 18 constitute the side AE of the offset parallelogram. Maintaining the alignment of the jack 17 and the connecting rod 18, which are connected together by an axis F, is effected by means of an intermediate crosspiece 19 which is articulated on said axis F and, on the drawbar 5, by means of an axis G. Thus, the ABTE offset parallelogram comprises two parallelograms: the ABGF parallelogram consisting of the cross member 16, of a portion corresponding for example to half of the drawbar 5, of an intermediate cross member 19 parallel to the cross member 16 and a connecting rod 18 parallel to the drawbar 5. The second parallelogram EFGT consists of the jack 17 which is parallel to the drawbar 5, of the intermediate cross member 19, of the other portion of the drawbar 5 and of the beam 3.
Le parallélogramme ABTE permet, en fonction du type de tracteur utilisé pour tirer ia charrue et notamment en fonction de la voie du tracteur, de régler l'écart X du premier corps 61 par rapport à la roue 20 du tracteur qui roule dans la raie. Cette roue 20 se situe à une distance Y de l'axe de retournement 2, c'est-à-dire à une distance qui est égale à la moitié de la voie du tracteur.The ABTE parallelogram makes it possible, depending on the type of tractor used to pull the plow and in particular depending on the track of the tractor, to adjust the distance X of the first body 61 relative to the wheel 20 of the tractor which rolls in the line. This wheel 20 is located at a distance Y from the turning axis 2, that is to say at a distance which is equal to half of the track of the tractor.
Le réglage du déport s'effectue au moyen d'un vérin 21 qui modifie la géométrie du parallélogramme de déport ABTE. Ce vérin 21 est interposé entre la traverse intermédiaire 19 et un bras 22 solidaire du bâti 4. Sur la traverse intermédiaire 19, le vérin 21 est monté sur un axe 23 et il est monté sur un axe 24 à son autre extrémité, solidaire du bras 22.The offset is adjusted by means of a jack 21 which modifies the geometry of the ABTE offset parallelogram. This cylinder 21 is interposed between the intermediate cross member 19 and an arm 22 secured to the frame 4. On the intermediate cross member 19, the jack 21 is mounted on an axis 23 and it is mounted on an axis 24 at its other end, integral with the arm 22.
L'axe 23 se situe sur la longueur de la traverse intermédiaire 19. L'axe 24 se situe à une distance de l'axe B qui est supérieure ou égale à celle qui sépare l'axe 23 de l'axe G.The axis 23 is located along the length of the intermediate crosspiece 19. The axis 24 is located at a distance from the axis B which is greater than or equal to that which separates the axis 23 from the axis G.
Le réglage de la largeur de travail Z, c'est-à-dire l'espace entre deux corps 6, s'effectue par un réglage de l'angle V que fait le bâti 4 avec l'axe longitudinal de traction 7. Ce réglage de l'angle du bâti 4 s'effectue au moyen d'un vérin 25 interposé par exemple entre une chape 26 disposée sur ledit bâti 4 et par exemple, une patte 27 aménagée à l'extrémité de la traverse centrale 16. Le vérin 25 peut être monté également sur l'axe A et l'axe 28 de la chape 26.The working width Z, that is to say the space between two bodies 6, is adjusted by adjusting the angle V made by the frame 4 with the longitudinal axis of traction 7. This adjustment of the angle of the frame 4 is effected by means of a jack 25 interposed for example between a yoke 26 disposed on said frame 4 and for example, a tab 27 arranged at the end of the central crosspiece 16. The jack 25 can also be mounted on the axis A and the axis 28 of the yoke 26.
La mise en action du vérin 25 provoque une déformation du parallélogramme de déport par l'intermédiaire du bras 22 et du vérin 21. La déformation du triangle B, 23, 24 permet, au fur et à mesure de la modification de la largeur de travail Z entre les corps 6, de corriger dans le même sens la distance X entre le premier corps 61 et la roue 20 du tracteur qui est positionnée dans le sillon précédent.The actuation of the jack 25 causes a deformation of the offset parallelogram by means of the arm 22 and of the jack 21. The deformation of the triangle B, 23, 24 allows, as and when the working width is modified Z between the bodies 6, correct in the same direction the distance X between the first body 61 and the wheel 20 of the tractor which is positioned in the previous groove.
Ces réglages du déport et de la largeur de travail s'effectuent en fonction du tracteur et en fonction de la nature du terrain par exemple. Ces réglages sont établis par l'opérateur en fonction des conditions de travail telles que des variations de la nature du terrain sur une grande parcelle.These adjustments of the offset and the working width are made according to the tractor and according to the nature of the ground for example. These settings are established by the operator based on working conditions such as variations in the nature of the terrain on a large plot.
Lorsque l'opérateur effectue à chaque extrémité de ses sillons une manoeuvre de retournement, il est préférable d'éviter de modifier tous ces réglages qui mettent en œuvre les différents mécanismes de réglage des angles.When the operator performs a turning maneuver at each end of his furrows, it is preferable to avoid modifying all these adjustments which implement the various angle adjustment mechanisms.
Lors de l'opération de retournement, compte-tenu de la longueur du bâti 4, il est souvent nécessaire pour éviter une interférence du bâti avec le sol, de recentrer ledit bâti sur l'axe de retournement. Ce recentrage s'effectue au moyen d'un pivotement du timon 5 porteur du bâti 4, autour de l'axe T situé sur la poutre transversale 3. Ce mouvement de recentrage est effectué au moyen du vérin 17 interposé entre la poutre transversale 3 et l'ensemble constitué par le timon 5, le bâti 4 et les moyens qui maintiennent la position de ces deux derniers l'un par rapport à l'autre, c'est-à-dire les vérins 21 et 25. La figure 2 représente la position du bâti 4 et du timon 5 après pivotement autour de l'axe T, sous l'effet du vérin 17. Après recentrage du bâti 4 par rapport à l'axe de retournement, la charrue peut être retournée par un pivotement de 180° autour de l'axe 2, en faisant passer la poutre 3 sous ledit axe.During the turning operation, taking into account the length of the frame 4, it is often necessary to avoid interference of the frame with the ground, to center said frame on the turning axis. This refocusing is carried out by means of a pivoting of the drawbar 5 carrying the frame 4, around the axis T located on the transverse beam 3. This refocusing movement is carried out by means of the jack 17 interposed between the transverse beam 3 and the assembly constituted by the drawbar 5, the frame 4 and the means which maintain the position of the latter two relative to each other, that is to say the jacks 21 and 25. FIG. 2 represents the position of the frame 4 and the drawbar 5 after pivoting about the axis T, under the effect of the jack 17. After refocusing the frame 4 relative to the turning axis, the plow can be turned over by a pivoting of 180 ° around the axis 2, passing the beam 3 under said axis.
Lors de cette manoeuvre, les vérins 21 et 25 restent bloqués et ils conservent la géométrie des différents parallélogrammes. On évite ainsi de faire fonctionner les différents axes du mécanisme de réglage de la largeur de travail et du déport.During this maneuver, the jacks 21 and 25 remain blocked and they keep the geometry of the different parallelograms. This avoids operating the different axes of the mechanism for adjusting the working width and the offset.
En position inactive, le vérin 17, comme représenté figure 1 , se comporte comme une bielle ; il maintient une distance constante entre les axes E et F. Ce vérin 17 a simplement pour fonction de faire varier l'angle entre la poutre transversale 3 et le timon 5 pour faciliter la manoeuvre de retournement du bâti de la charrue.In the inactive position, the jack 17, as shown in FIG. 1, behaves like a connecting rod; it maintains a constant distance between axes E and F. This jack 17 simply has the function of varying the angle between the transverse beam 3 and the drawbar 5 to facilitate the turning operation of the frame of the plow.
La figure 3 représente une variante de réalisation présentée également sous la forme de schéma fonctionnel. On retrouve, dans cette variante, la tête d'attelage 1 , l'axe de retournement 2 sur lequel est articulée la poutre transversale 3. Le bâti 4 est porté par le timon 5, lequel timon 5 est articulé sur la poutre 3 autour d'un axe de tête T et sur le bâti autour d'un axe de bâti B.FIG. 3 represents an alternative embodiment also presented in the form of a functional diagram. We find, in this variant, the coupling head 1, the turning axis 2 on which is articulated the transverse beam 3. The frame 4 is carried by the drawbar 5, which drawbar 5 is articulated on the beam 3 around d 'a head axis T and on the frame around a frame axis B.
Le bâti 4 comporte les corps 6 qui sont reliés entre eux par une tringle 8 et les manivelles 9. Le maintien des corps 6 alignés par rapport à l'axe longitudinal 7 s'effectue par l'intermédiaire des parallélogrammes ABCD et ABTE, et les parallélogrammes de liaison des corps entre eux.The frame 4 comprises the bodies 6 which are connected together by a rod 8 and the cranks 9. The bodies 6 are kept aligned with respect to the longitudinal axis 7 by means of the parallelograms ABCD and ABTE, and the parallelograms of the bodies' connection to each other.
Le parallélogramme ABTE ou parallélogramme de déport, comprend le timon 5, ia poutre 3, un vérin 17' parallèle au timon 5 qui s'étend entre les axes E et A et une traverse AB détaillée plus loin.The ABTE parallelogram or offset parallelogram includes the drawbar 5, ia beam 3, a jack 17 'parallel to the drawbar 5 which extends between the axes E and A and a cross member AB detailed below.
Le parallélogramme ABCD, dénommé parallélogramme de dévers, comprend la traverse AB, détaillée plus loin, une portion de bâti entre B et C, une manivelle 92 entre C et D, et une bielle 11 entre A et B, laquelle bielle peut être réglable, constituée d'un ridoir. Le parallélogramme de dévers ABCD se déforme principalement sous l'effet du vérin 25, lequel vérin fait varier l'angle V entre le bâti et l'axe longitudinal 7. Le parallélogramme de déport ABTE est déformable sous l'effet d'un vérin 21. Ce vérin 21 est interposé entre le timon 5 et en particulier l'axe G' et la traverse AB.The parallelogram ABCD, called the superelevation parallelogram, comprises the cross-member AB, detailed below, a portion of frame between B and C, a crank 92 between C and D, and a connecting rod 11 between A and B, which connecting rod can be adjustable, consisting of a turnbuckle. The superelevation parallelogram ABCD deforms mainly under the effect of the actuator 25, which actuator varies the angle V between the frame and the longitudinal axis 7. The offset parallelogram ABTE is deformable under the effect of a jack 21. This jack 21 is interposed between the drawbar 5 and in particular the axis G 'and the cross member AB.
La traverse AB qui est commune au parallélogramme de déport et au parallélogramme de dévers, est constituée d'un bras 22 solidaire du bâti 4, qui s'étend entre A et B. Cette traverse AB est complétée par un levier en forme d'organe basculeur 30 qui est articulé entre ses deux extrémités, au niveau d'un axe 31 situé à l'extrémité du bras 22. Ce basculeur s'étend d'un côté entre l'axe 31 et l'axe A et de l'autre côté entre l'axe 31 et un axe 32 associé à l'extrémité du vérin 21. En position médiane, les axes 31 et 32 sont sensiblement sur la ligne AB.The cross member AB which is common to the offset parallelogram and to the superelevation parallelogram, consists of an arm 22 secured to the frame 4, which extends between A and B. This cross member AB is completed by a lever in the form of an organ rocker 30 which is articulated between its two ends, at an axis 31 located at the end of the arm 22. This rocker extends on one side between axis 31 and axis A and on the other side between the axis 31 and an axis 32 associated with the end of the jack 21. In the middle position, the axes 31 and 32 are substantially on the line AB.
Le rapport entre la branche 33 du basculeur 30, située entre l'axe 31 et l'axe A, et la branche 34 située entre l'axe 31 et l'axe 32, est de l'ordre de 2. L'axe 31 est situé à une distance de B qui est de l'ordre des 2/3 de la distance AB.The ratio between the branch 33 of the rocker 30, located between the axis 31 and the axis A, and the branch 34 located between the axis 31 and the axis 32, is of the order of 2. The axis 31 is located at a distance of B which is of the order of 2/3 of the distance AB.
On remarque que l'axe G' est situé sur la longueur du timon 5, sensiblement à mi-distance des axes B et T, décalé vers l'intérieur du parallélogramme ABTE, à une distance de la droite BT qui est de l'ordre du VA de la distance TE.Note that the axis G 'is located along the length of the drawbar 5, substantially halfway between the axes B and T, offset towards the inside of the ABTE parallelogram, at a distance from the straight line BT which is of the order of the TE distance VA.
Les axes A, G', 32 forment un triangle dont le côté formé par le basculeur 30 a une longueur fixe.The axes A, G ', 32 form a triangle whose side formed by the rocker 30 has a fixed length.
Le côté formé par le vérin 21 a une longueur qui varie en fonction du réglage du déport et le côté G'A a une longueur qui varie sous l'effet du vérin 21 ou sous l'effet du vérin 25 qui sert au réglage de la largeur de travail.The side formed by the jack 21 has a length which varies according to the adjustment of the offset and the side G'A has a length which varies under the effect of the jack 21 or under the effect of the jack 25 which is used for adjusting the working width.
Ainsi, une action du vérin 25 pour modifier la largeur de travail de la charrue a une incidence sur le déport en faisant varier la distance G'A. Une action sur le vérin 25 qui a tendance à réduire la largeur de travail, c'est-à-dire à réduire l'angle V entre le bâti 4 et l'axe longitudinal 7, a tendance à réduire la distance G'A et à déplacer l'axe B et toute la charrue, vers ia muraille 35. A l'inverse, une action sur le vérin 25 pour augmenter la largeur de travail c'est-à-dire augmenter l'angle V du bâti 4 par rapport à l'axe 7, modifiera la distance G'A dans le sens d'un accroissement ce qui aura pour effet d'écarter la charrue de la muraille 35 et surtout d'établir un déport, c'est-à-dire une distance X qui correspond sensiblement à la largeur Z entre deux corps consécutifs.Thus, an action of the jack 25 to modify the working width of the plow has an effect on the offset by varying the distance G'A. An action on the jack 25 which tends to reduce the working width, that is to say to reduce the angle V between the frame 4 and the longitudinal axis 7, tends to reduce the distance G'A and to move the axis B and all the plow, towards the wall 35. Conversely, an action on the jack 25 to increase the working width, that is to say increase the angle V of the frame 4 relative to the axis 7, will modify the distance G'A in the direction d 'An increase which will have the effect of removing the plow from the wall 35 and especially to establish an offset, that is to say a distance X which corresponds substantially to the width Z between two consecutive bodies.
Pour effectuer un recentrage du bâti 4 par rapport à l'axe 7, le côté AE du parallélogramme ABCE comporte un vérin 17'. Ce vérin lorsqu'il est actionné, fait pivoter l'ensemble de la charrue autour de l'axe T permettant de déplacer le centre de gravité de ladite charrue pour l'approcher de l'axe longitudinal 7. Cette action sur le vérin 17' est sans effet sur le réglage de la largeur de travail et sur le réglage du déport.To refocus the frame 4 with respect to the axis 7, the side AE of the ABCE parallelogram comprises a jack 17 ′. This actuator when actuated, rotates the entire plow around the axis T allowing the center of gravity of said plow to be moved to approach it from the longitudinal axis 7. This action on the actuator 17 ' has no effect on the adjustment of the working width and on the adjustment of the offset.
A noter que le vérin 21 qui sert au réglage du déport peut être remplacé par un ridoir. Note that the jack 21 which is used to adjust the offset can be replaced by a turnbuckle.

Claims

- REVENDICATIONS - 1.- Charrue réversible portée à largeur de travail variable constituée d'un bâti (4) muni de corps de labour qui sont articulés autour d'un axe de corps C qui est vertical en position normale de travail, lequel bâti est relié à la tête d'attelage (1) au moyen d'un timon (5) par l'intermédiaire d'un axe de tête T et d'un axe de bâti B, lequel timon (5) est disposé à proximité de l'axe longitudinal de traction et constitue le côté d'un parallélogramme ABTE déformable au moyen d'un vérin (21) pour réaliser le déport latéral desdits corps de labour par rapport au tracteur, lequel parallélogramme est formé de la poutre transversale (3) qui porte l'axe de tête T, d'un côté AE qui est parallèle audit timon (5) et d'une traverse AB qui est parallèle à ladite poutre (3), laquelle traverse AB constitue un côté commun avec un second parallélogramme ABCD déformable également, sous l'effet d'un vérin (25) qui permet de régler le dévers et la largeur de travail entre les corps par modification de l'inclinaison du bâti (4) par rapport à l'axe longitudinal de traction, lesquels parallélogrammes permettent, en coopération avec une tringle (8) de maintenir l'orientation des corps de labour par rapport audit axe longitudinal (7), caractérisée en ce que le côté AE du parallélogramme de déport comporte un vérin de recentrage (17, 17'), qui est articulé sur l'axe E de la poutre transversale (3) pour réaliser un recentrage dudit bâti (4) et des corps, par pivotement de l'ensemble autour de l'axe de tête T, sans modification des réglages de la largeur de travail et/ou du déport.- CLAIMS - 1.- Reversible plow carried with variable working width consisting of a frame (4) provided with plowing bodies which are articulated around a body axis C which is vertical in normal working position, which frame is connected to the coupling head (1) by means of a drawbar (5) via a head pin T and a frame pin B, which drawbar (5) is arranged near the longitudinal axis of traction and constitutes the side of an ABTE parallelogram which can be deformed by means of a jack (21) to effect the lateral offset of said plowing bodies relative to the tractor, which parallelogram is formed of the transverse beam (3) which carries the head axis T, on one side AE which is parallel to said drawbar (5) and of a cross member AB which is parallel to said beam (3), which cross member AB constitutes a common side with a second deformable parallelogram ABCD also, under the effect of a jack (25) which makes it possible to adjust the superelevation and the working width between the bodies by modifying the inclination of the frame (4) relative to the longitudinal axis of traction, which parallelograms allow, in cooperation with a rod (8) to maintain the orientation of the plowing bodies by relative to said longitudinal axis (7), characterized in that the side AE of the offset parallelogram comprises a centering cylinder (17, 17 '), which is articulated on the axis E of the transverse beam (3) to perform a centering of said frame (4) and of the bodies, by pivoting the assembly around the head axis T, without modifying the settings of the working width and / or the offset.
2.- Charrue réversible portée selon la revendication 1 , caractérisée en ce que le parallélogramme de déport ABTE comprend, entre les côtés adjacents au timon (5), c'est-à-dire entre les côtés AB et TE, une traverse intermédiaire (19) articulée par exemple à mi-longueur dudit bras support, laquelle traverse divise ledit parallélogramme ABTE en deux parallélogrammes : - un premier parallélogramme TEFG entre la poutre (3) de la tête d'attelage et ladite traverse (19), et - un second parallélogramme GFAB entre la traverse (19) et la traverse centrale (16), lequel premier parallélogramme TEFG comporte, parallèlement au bras (5), un côté EF constitué du vérin (17) qui permet d'effectuer un basculement de l'ensemble du bâti (4) et du bras (5), autour de l'axe de tête T.2.- reversible plow carried according to claim 1, characterized in that the ABTE offset parallelogram comprises, between the sides adjacent to the drawbar (5), that is to say between the sides AB and TE, an intermediate crosspiece ( 19) articulated for example at mid-length of said support arm, which cross member divides said ABTE parallelogram into two parallelograms: - a first TEFG parallelogram between the beam (3) of the coupling head and said cross member (19), and - a second GFAB parallelogram between the crosspiece (19) and the central crosspiece (16), which first TEFG parallelogram comprises, parallel to the arm (5), an EF side consisting of the jack (17) which makes it possible to tilt the assembly of the frame (4) and the arm (5) around the head axis T.
3.- Charrue réversible portée selon la revendication 2, caractérisée en ce que le vérin (21) de manoeuvre du parallélogramme de déport est articulé à l'une de ses extrémités sur la traverse intermédiaire (19) au moyen d'un axe (23) situé sur la longueur de ladite traverse intermédiaire et, à son autre extrémité, au moyen d'un axe (24) monté sur une patte (22) solidaire du bâti (4), les axes B, (23), (24) définissent un triangle qui comporte un côté de longueur fixe, constitué par la patte (22), un côté de longueur réglable constitué par le vérin (21) et un côté B (23) de longueur variable sous l'effet du vérin (25).3.- reversible plow carried according to claim 2, characterized in that the actuator (21) for maneuvering the offset parallelogram is articulated at one of its ends on the intermediate crosspiece (19) by means of an axis (23 ) located along the length of said intermediate cross member and, at its other end, by means of a pin (24) mounted on a lug (22) integral with the frame (4), the axes B, (23), (24) define a triangle which has a fixed length side, constituted by the tab (22), an adjustable length side constituted by the jack (21) and a side B (23) of variable length under the effect of the jack (25) .
4.- Charrue réversible portée selon la revendication 3, caractérisée en ce que le vérin (25) de réglage de la largeur de travail est interposé entre une chape (26) solidaire du bâti (4) et un axe situé sur la traverse centrale (16), à proximité ou confondu avec l'axe A. 4.- reversible plow carried according to claim 3, characterized in that the jack (25) for adjusting the working width is interposed between a yoke (26) integral with the frame (4) and an axis located on the central crosspiece ( 16), close to or coincident with axis A.
PCT/FR1996/001681 1995-10-25 1996-10-25 Towed reversible plough with variable working width and device for recentering the frame to the return axis WO1997015177A1 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
AU73089/96A AU7308996A (en) 1995-10-25 1996-10-25 Towed reversible plough with variable working width and device for recentering the frame to the return axis
EP96934981A EP0857014A1 (en) 1995-10-25 1996-10-25 Towed reversible plough with variable working width and device for recentering the frame to the return axis
RO98-00896A RO117059B1 (en) 1995-10-25 1996-10-25 Towed reversible plough with variable working width having a device for recentering the frame to the return axis
PL96326363A PL326363A1 (en) 1995-10-25 1996-10-25 Pendant reversible plough with an apparatus aligning the plough frame axis in respect to that of rotation performed while reversing the plough
BR9611246-8A BR9611246A (en) 1995-10-25 1996-10-25 Reversibly supported plow of variable width with frame re-centering device on the return axis.
BG102406A BG102406A (en) 1995-10-25 1998-04-24 Towed reversible plough having alternating width and a device for repeated aligning of the frame towards the axis of reverse

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR95/12760 1995-10-25
FR9512760A FR2740293B1 (en) 1995-10-25 1995-10-25 REVERSIBLE PLOW WIDTH OF VARIABLE WIDTH WITH DEVICE FOR CENTERING THE FRAME ON THE TURNING AXIS

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WO1997015177A1 true WO1997015177A1 (en) 1997-05-01

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PCT/FR1996/001681 WO1997015177A1 (en) 1995-10-25 1996-10-25 Towed reversible plough with variable working width and device for recentering the frame to the return axis

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EP (1) EP0857014A1 (en)
AU (1) AU7308996A (en)
BG (1) BG102406A (en)
BR (1) BR9611246A (en)
CZ (1) CZ126898A3 (en)
FR (1) FR2740293B1 (en)
HU (1) HUP9900005A2 (en)
PL (1) PL326363A1 (en)
RO (1) RO117059B1 (en)
WO (1) WO1997015177A1 (en)

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FR2754970A1 (en) * 1996-10-25 1998-04-30 Naud Expl Charrues MULTISOCS PLOW WITH ADJUSTABLE WORKING WIDTH
WO2000002439A1 (en) * 1998-07-10 2000-01-20 Kverneland Klepp As Lateral adjustment mechanism for fully mounted plough

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GB0010796D0 (en) * 2000-05-05 2000-06-28 Kverneland Klepp As Adjustment mechanism for reversible plough
EP2569872B1 (en) 2010-05-11 2019-09-11 Orange Method for sending and receiving a multicarrier signal, corresponding transmitter, receiver, signal, and computer program

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FR2627931A1 (en) * 1988-03-02 1989-09-08 Bonnel Charrues PLOW WITH VARIABLE WORKING WIDTH
EP0358537A2 (en) * 1988-09-05 1990-03-14 Huard S.A. Multifurrow reversible plough having a device combining level adjustment, off-setting adjustment and width adjustment
DE29516595U1 (en) * 1995-10-20 1996-01-04 Lemken Kg plow

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GB2119614A (en) * 1982-05-10 1983-11-23 Kverneland As An agricultural implement
GB2122464A (en) * 1982-06-28 1984-01-18 Kverneland As An agricultural implement
DE3615298A1 (en) * 1986-05-06 1987-11-12 Gerhard Frost Gmbh & Co Maschi Plough with a setting of the front-furrow width and with a cutting-width setting for all the plough bodies
DE8631070U1 (en) * 1986-11-20 1987-02-26 Pflugfabrik Lemken Kg, 4234 Alpen, De
FR2627931A1 (en) * 1988-03-02 1989-09-08 Bonnel Charrues PLOW WITH VARIABLE WORKING WIDTH
EP0358537A2 (en) * 1988-09-05 1990-03-14 Huard S.A. Multifurrow reversible plough having a device combining level adjustment, off-setting adjustment and width adjustment
DE29516595U1 (en) * 1995-10-20 1996-01-04 Lemken Kg plow

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2754970A1 (en) * 1996-10-25 1998-04-30 Naud Expl Charrues MULTISOCS PLOW WITH ADJUSTABLE WORKING WIDTH
WO1998018308A1 (en) * 1996-10-25 1998-05-07 Charrues Naud Multi-share plough with adjustable working width
WO2000002439A1 (en) * 1998-07-10 2000-01-20 Kverneland Klepp As Lateral adjustment mechanism for fully mounted plough

Also Published As

Publication number Publication date
FR2740293A1 (en) 1997-04-30
RO117059B1 (en) 2001-10-30
BR9611246A (en) 1999-12-28
PL326363A1 (en) 1998-09-14
CZ126898A3 (en) 1998-10-14
BG102406A (en) 1999-01-29
AU7308996A (en) 1997-05-15
HUP9900005A2 (en) 1999-03-29
EP0857014A1 (en) 1998-08-12
FR2740293B1 (en) 1998-01-16

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