WO2005077137A2 - Plow system having plowshares - Google Patents

Plow system having plowshares Download PDF

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Publication number
WO2005077137A2
WO2005077137A2 PCT/FR2005/000091 FR2005000091W WO2005077137A2 WO 2005077137 A2 WO2005077137 A2 WO 2005077137A2 FR 2005000091 W FR2005000091 W FR 2005000091W WO 2005077137 A2 WO2005077137 A2 WO 2005077137A2
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WO
WIPO (PCT)
Prior art keywords
roller
age
plate
obstacle
vertical
Prior art date
Application number
PCT/FR2005/000091
Other languages
French (fr)
Other versions
WO2005077137A3 (en
Inventor
Marcel Dairon
Original Assignee
Etablissements Dairon Marcel
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Application filed by Etablissements Dairon Marcel filed Critical Etablissements Dairon Marcel
Publication of WO2005077137A2 publication Critical patent/WO2005077137A2/en
Publication of WO2005077137A3 publication Critical patent/WO2005077137A3/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
    • A01B17/00—Ploughs with special additional arrangements, e.g. means for putting manure under the soil, clod-crushers ; Means for breaking the subsoil
    • A01B17/004—Clod-crushers

Definitions

  • the present invention relates to a plow system in particular with plowshares and intended to be towed behind a tractor vehicle.
  • a system comprising a chassis coupled to the towing vehicle and comprising a beam inclined relative to the direction of advance of the towing vehicle, and at least two plowshares mounted on the inclined beam via respectively two support ages being offset laterally and longitudinally.
  • a compacting roller is provided behind the coulters transversely to the direction of advance of the towing vehicle, occupying practically the entire width of the coulters so as to flatten the soil raised and turned over by the coulters as the progress of the towing vehicle.
  • roller system is bulky in width and, therefore, relatively heavy and requires a towing vehicle of very high power.
  • Another drawback of this system is that it is used independently of the number of plowshares attached to the chassis towed to the towing vehicle, that is to say in the case for example of two plowshares, the roller part disposed laterally outside. grooves drawn by the coulters will not be active.
  • the roller encounters an obstacle, such as rocks, tree stump residues, tree branches, and the like, it is lifted so that it no longer performs its compaction function. plowed during this uplift phase.
  • the object of the present invention is to eliminate the above drawbacks by proposing a plow system intended to be towed behind a tractor vehicle, comprising a chassis coupled to the vehicle.
  • tractor and comprising a beam inclined with respect to the direction of advance of the tractor vehicle, and at least two plowing bodies, in particular plowshares, mounted on the inclined beam respectively by means of two support ages being offset laterally and longitudinally , and which is characterized in that it comprises at least two transverse soil compaction rollers fixed respectively to the two ages behind the plow bodies by being offset laterally so that each roller can flatten the strip of soil raised and turned over by the plow body with which the roller is associated.
  • the compacting rollers when viewed from behind, are adjacent and of a width so as to give the appearance of a single transverse roller.
  • Each roller is advantageously constituted by a tire of the semi-hollow type with a flexible tread.
  • Each support age of a plow body is fixed to the inclined beam of the chassis by being pivotally mounted on the beam around a transverse axis to allow the tilting of the plow body upwards when it meets an obstacle so to avoid damaging the plow body.
  • a hydraulic cylinder is interposed between the inclined beam of the chassis and the age to automatically bring the plow body back to its working position after passing the obstacle.
  • Each support age of a ploughshare in the shape of a ploughshare comprises a longitudinal vertical plate connected at its upper part to the beam inclined by the transverse pivot axis and the front part of which carries a vertical coulter, the plate comprising a clearance arched behind the vertical coulter, starting substantially from the upper end level of this coulter so that the clearance can deflect any obstacle, such as residue from stumps, branches or others, in the flow of plowed soil during the work of the corresponding plow body which is integral with the face of the vertical plate located opposite the beam inclined behind the vertical coulter.
  • a longitudinal vertical plate is fixed to the inclined beam being adjacent to the pivoting vertical plate so as to provide lateral reinforcement of the pivoting plate.
  • Each compacting roller is rotatably mounted on a transverse shaft fixed to the end of a rigid age bar by means of parallel articulated links forming a deformable parallelogram allowing the lifting of the roller relative to the corresponding age when 'he encounters an obstacle.
  • the lower link has at its end opposite to that located on the roller side a spout limiting the downward pivoting of the link by coming to bear under the rigid age bar.
  • the chassis is in the shape of a right triangle whose inclined beam forms the hypotenuse and one of the adjacent beam-shaped sides extends longitudinally and carries a vertical equilateral triangular plate mounted madly around a transverse axis, the plate triangular comprising three pneumatic wheels mounted idly respectively at the three vertices of the triangular plate so that two of the idler wheels laterally support the chassis on the ground and the triangular plate can rotate on itself when one of the wheels meets an obstacle.
  • the chassis is fixed to the rear of the towing vehicle by a three-point hitch.
  • Figure 3 is a top view of the plow system according to arrow III of Figure 1;
  • Figure 4 is a partial perspective view along arrow IV of Figure 1;
  • Figure 5 is a perspective view along arrow V of Figure 4 showing the mode of articulation of a compacting roller at a support age of a share;
  • Figure 6 is a view similar to that of Figure 5 and showing the lifting of the roller when it encounters an obstacle.
  • the reference 1 designates the chassis of a plow intended to be fixed to the rear of a tractor vehicle, not shown, by a conventional three-point coupling device 2a, 2b and 2c.
  • the chassis 1 has a top view substantially in the form of a right triangle whose hypotenuse 3 consists of a beam inclined relative to the direction of advance A of the towing vehicle and one of the sides adjacent to the beam 3 is also constituted by a beam 4 parallel to the direction of advance A of this vehicle.
  • the two beams 3, 4 are connected to each other by a cross member 5 constituting the third side of the chassis 1 and extending transversely to the direction of advance A of the towing vehicle.
  • the cross member 5 of the chassis 1 carries the three yokes 6 forming part of the three-point hitching device of the chassis 1 to the towing vehicle.
  • the inclined beam 3 carries a certain number of plowing bodies 7 preferably with coulters and in this case three in number, although a different number could be provided.
  • the plowshares 7 are mounted on the inclined beam 3 by means of three support ages 8 respectively, being offset laterally and longitudinally.
  • the plow is further equipped in the present case with three transverse rollers 9 for soil compaction fixed respectively to the three ages 8 behind the plowshares 7 while being offset laterally so that each roller 9 can flatten the strip of earth raised and turned upside down by the moldboard 10 of the ploughshare 7 with which the roller 9 is associated.
  • each roller 9 is constituted by a tire of the semi-hollow type with flexible tread, known per se allowing excellent re-pressing of the soil and producing a self-cleaning effect thus preventing the earth from adhering to the tread.
  • Each age 8 of support for a ploughshare 7 is fixed to the inclined beam 3 of the chassis 1 while being pivotally mounted to this beam around a transverse axis 11 to allow the ploughshare to tilt upwards when it encounters an obstacle , such as rocks, residue from stumps, branches, so as to avoid damaging the ploughshare, the latter returning to its working position once the obstacle has been overcome.
  • an obstacle such as rocks, residue from stumps, branches, so as to avoid damaging the ploughshare, the latter returning to its working position once the obstacle has been overcome.
  • Each support age 8 of a ploughshare 7 comprises a longitudinal vertical plate 12, the lower front part of which carries a vertical coulter 13 and a second plate 14 approximately in the shape of an inverted L fixed to the plate 12 parallel to it by the intermediate transverse spacers 15 so that the upper part of the plate 12 and the end of the small branch of the inverted L of the plate 14 are pivotally mounted on the inclined beam 3 around the transverse axis 11.
  • the plates 12 and 14, which extend parallel to the direction of advance A of the towing vehicle, are fixed to the inclined beam 3 by means of an assembly 16 forming both a flange for fixing to the beam 3 and a yoke hinge plates 12, 14 of the corresponding age 8.
  • Each assembly 16 may be constituted by a rigid longitudinal plate 17 fixed to the inclined beam 3 by bolts 18 and a rigid longitudinal plate 19 secured by welding the inclined beam 3 and adjacent to the pivoting plate 12 while being in sliding contact with the latter, the plate 19 making it possible to laterally reinforce the pivoting plate 12 so that it resists the forces of transverse deformation during the work of the corresponding coulter 7.
  • Each coulter 7 is fixed by welding to the face of the corresponding pivoting plate 12 located opposite the inclined beam 3 behind the vertical coulter 13.
  • a hydraulic cylinder of double-acting design 20 is used with simple effect and is interposed between the age 8 of support of a share 7 and the inclined beam 3 so as to automatically return the share 7 to its working position after the latter has passed an obstacle having raised it upwards around the pivot axis 11.
  • Each cylinder 20 has its cylinder mounted pivoting about a transverse axis 21 fixed between the plates 17 and 19 and its rod end pivotally connected to a transverse axis 22 fixed between the two pivoting plates 12, 14. During the upward pivoting of the pivoting plates 12, 14, the cylinder body 20 approaches the pivot axis 11.
  • Each compacting roller 9 is rotatably mounted on a transverse support shaft 23 which is fixed to one end of an inclined rigid bar 24 by means of articulated links forming a deformable parallelogram 25 allowing the lifting of the roller 9 when it encounters an obstacle.
  • the inclined rigid bar 24 is joined by welding the lower parts of the two pivoting plates 12, 14 of age 8 and carries at its rear free end two rigid arms 26 in the form of a plate extending upwards and fixed by welding to the bar 24 at their lower ends.
  • Two parallel links 27 have two of their ends situated on the same side pivotally mounted respectively with two upper and lower transverse axes 28 fixed between the two parallel rigid arms 26.
  • Two other parallel rigid plate-shaped arms 29 are fixed at their ends lower by welding to the bar 23 extending upward perpendicularly relative to the latter.
  • the two links 27 have their ends opposite to the pivot axes 28 also mounted so as to pivot respectively to two upper and lower axes 30 fixed between the two arms 29.
  • the rigid arms 26, 29 and the links 27 extend respectively in planes vertical parallel to the forward direction A of the towing vehicle when the chassis 1 is coupled to the latter.
  • the three rollers 9 are offset laterally so that the internal lateral face of the rim of the roller 9 furthest to the left in view of this figure is substantially in the same vertical plane as the lateral face external of the rim of the intermediate roller 9, the internal lateral face of which is also substantially in the same vertical plane as the external lateral face of the rim of the rearmost roller 9.
  • the rollers 9 when seen from the rear as indicated by the arrow B, these give the appearance of a single transverse roller.
  • the chassis 1 moves in the direction of advance A, the soil raised and turned over by the three moldboards 10 of the plowshares 7 is compacted respectively by the three rollers 9 located immediately at the outlet of the plowshares 7.
  • each roller 9 can pivot upwards relative to the associated coulters 7 when it encounters an obstacle.
  • the downward movement of each roller 9 is limited by a beak-shaped part 27a of the lower link 27 and produced at its end opposite the arms 29, being located below the longitudinal axis of the link 27, the beak which can come to bear on the underside of the end of the rigid bar 24 as shown in FIG. 5.
  • each pivoting plate 12 of an age 8 for supporting a ploughshare 7 comprises a hollowed out part or arcuate clearance 12a made behind the vertical coulter 13 above it, starting substantially from the upper end level of this coulter.
  • the clearance 12a of the vertical coulter 13 has the function of allowing foreign bodies, such as residue from stumps, branches, mulching, to flow away as the plow works, being entrained by the flow of plowed soil, thus avoiding any vertical jam.
  • the optimum flow is obtained as soon as the upper vertical part of the coulter 13 is at or slightly below the level of the natural soil so that the clearance 12a deflects any aforementioned obstacle in the flow of plowed soil.
  • the frame 1 is supported laterally opposite the three rollers 9 by a set of three pneumatic wheels 31, two of which are supported on the ground.
  • the three wheels 31 are mounted idle respectively at the three ends or vertices of a vertical plate 32 substantially in the shape of an equilateral triangle itself mounted idly around a transverse axis 33 of the beam longitudinal 4 of the chassis 1.
  • the rotary support axis 33 of the plate 32 is fixed to the beam 4 below the latter by a fixing flange 34 with parallel vertical plates 34a fixed to the beam 4 on each side of the latter by transverse bolts 35.
  • the chassis comprises associated with the longitudinal beam 4 at least one support stand 35 which can be immobilized by a locking screw 37 in a sheath 36 secured by welding of the external face of the beam 4 perpendicular to its longitudinal axis.
  • the stand 35 is raised upwards through the sheath 36 and locked in this position by the locking screw 37.
  • the compacting rollers 9 can be mounted in the same manner as precisely described in rear respectively of plowing discs of a plow instead of plowshares. Each compacting roller 9 can be easily removed from the support age 8 by removing the pivot pins 28 held between the two arms 26 by removable pins 28a.

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Soil Sciences (AREA)
  • Environmental Sciences (AREA)
  • Soil Working Implements (AREA)

Abstract

The invention concerns a plow system having plowshares. The system is characterized by having at least two soil packing transversal rollers (9) respectively fixed to two supporting plow beams (8) of bodies (7) situated therebehind while being laterally offset in such a manner that each roller (9) can flatten a furrow slice raised and turned by the body (7) to which the roller (9) is associated. The invention is for use in the field of agriculture.

Description

'Système de charrue à socs" 'Coulter plow system "
La présente invention concerne un système de charrue notamment à socs et destiné à être remorqué derrière un véhicule tracteur. On connaît un tel système comprenant un châssis attelé au véhicule tracteur et comportant une poutre inclinée par rapport au sens d'avancement du véhicule tracteur, et au moins deux socs de labour montés sur la poutre inclinée par l'intermédiaire respectivement de deux âges de support en étant décalés latéralement et longitudinalement . Un rouleau de tassement est prévu en arrière des socs transversalement à la direction d'avancement du véhicule tracteur en occupant pratiquement toute la largeur des socs de manière à aplanir la terre soulevée et retournée par les socs au fur et à mesure de l'avancement du véhicule tracteur. L'inconvénient d'un tel système à rouleau est qu'il est encombrant en largeur et, par conséquent, relativement lourd et nécessite un véhicule tracteur de très forte puissance. Ce système a pour autre inconvénient qu'il est utilisé indépendamment du nombre de socs fixés au châssis remorqué au véhicule tracteur, c'est-à-dire dans le cas par exemple de deux socs de labour, la partie de rouleau disposée latéralement en dehors des sillons tracés par les socs ne sera pas active. Enfin, lorsque le rouleau rencontre un obstacle, tel que des roches, des résidus de souches d'arbres, des branches d'arbres, et autres, il est soulevé de sorte qu'il n'accomplit plus sa fonction de tassement de la terre labourée pendant cette phase de soulèvement . La présente invention a pour but d'éliminer les inconvénients ci-dessus en proposant un système de charrue destiné à être remorqué derrière un véhicule tracteur, comprenant un châssis attelé au véhicule tracteur et comportant une poutre inclinée par rapport au sens d'avancement du véhicule tracteur, et au moins deux corps de labour, notamment a socs, montés sur la poutre inclinée par l'intermédiaire respectivement de deux âges de support en étant décalés latéralement et longitudinalement , et qui est caractérisé en ce qu'il comprend au moins deux rouleaux transversaux de tassement du sol fixés respectivement aux deux âges en arrière des corps de labour en étant décalés latéralement de manière que chaque rouleau puisse aplanir la bande de terre soulevée et retournée par le corps de labour auquel est associé le rouleau. Les rouleaux de tassement, lorsque vus en arrière, sont adjacents et d'une largeur de manière à donner l'apparence d'un rouleau transversal unique. Chaque rouleau est avantageusement constitué par un pneumatique du type semi-creux à bande de roulement souple . Chaque âge de support d'un corps de labour est fixé à la poutre inclinée du châssis en étant monté pivotant à la poutre autour d'un axe transversal pour permettre le basculement vers le haut du corps de labour lorsqu'il rencontre un obstacle de manière à éviter d'abîmer le corps de labour. Un vérin hydraulique est interposé entre la poutre inclinée du châssis et l'âge pour ramener automatiquement le corps de labour à sa position de travail après avoir dépassé l'obstacle. Chaque âge de support d'un corps de labour en forme de soc comprend une plaque verticale longitudinale reliée à sa partie supérieure à la poutre inclinée par l'axe transversal de pivotement et dont la partie avant porte un coutre vertical, la plaque comportant un dégagement arqué réalisé en arrière du coutre vertical en partant sensiblement du niveau d'extrémité supérieure de ce coutre de manière que le dégagement puisse dévier tout obstacle, tel que résidus de souches, branches ou autres, dans le flux de terre labourée lors du travail du corps de labour correspondant qui est solidaire de la face de la plaque verticale située à l'opposé de la poutre inclinée en arrière du coutre vertical. Une plaque verticale longitudinale est fixée à la poutre inclinée en étant adjacente à la plaque verticale pivotante de manière à assurer un renforcement latéral de la plaque pivotante. Chaque rouleau de tassement est monté a rotation sur un arbre transversal fixé à l'extrémité d'une barre rigide de l'âge par l'intermédiaire de biellettes parallèles articulées formant un parallélogramme déformable permettant le soulèvement du rouleau relativement à l'âge correspondant lorsqu'il rencontre un obstacle. La biellette inférieure comporte à son extrémité opposée à celle située côté rouleau un bec limitant le pivotement vers le bas de la biellette en venant en appui sous la barre rigide de l'âge. Le châssis est en forme de triangle rectangle dont la poutre inclinée en constitue l'hypoténuse et l'un des côtés adjacents en forme de poutre s'étend longitudinalement et porte une plaque triangulaire équilatérale verticale montée folle autour d'un axe transversal, la plaque triangulaire comportant trois roues à pneumatiques montées folles respectivement aux trois sommets de la plaque triangulaire de manière que deux des roues folles supportent latéralement le châssis sur le sol et la plaque triangulaire puisse tourner sur elle-même lorsque l'une des roues rencontre un obstacle. Le châssis est fixé à l'arrière du véhicule tracteur par un dispositif d'attelage à trois points. L'invention sera mieux comprise, et d'autres buts, caractéristiques, détails et avantages de celle-ci apparaîtront plus clairement dans la description explicative qui va suivre faite en référence aux dessins schématiques annexés donnés uniquement à titre d'exemple illustrant un mode de réalisation de l'invention et dans lesquels : la figure 1 est une vue de trois-quarts en perspective du système de charrue conforme à 1 ' invention ; la figure 2 est une vue en perspective de côté du système de charrue suivant la flèche II de la figureThe present invention relates to a plow system in particular with plowshares and intended to be towed behind a tractor vehicle. Such a system is known comprising a chassis coupled to the towing vehicle and comprising a beam inclined relative to the direction of advance of the towing vehicle, and at least two plowshares mounted on the inclined beam via respectively two support ages being offset laterally and longitudinally. A compacting roller is provided behind the coulters transversely to the direction of advance of the towing vehicle, occupying practically the entire width of the coulters so as to flatten the soil raised and turned over by the coulters as the progress of the towing vehicle. The disadvantage of such a roller system is that it is bulky in width and, therefore, relatively heavy and requires a towing vehicle of very high power. Another drawback of this system is that it is used independently of the number of plowshares attached to the chassis towed to the towing vehicle, that is to say in the case for example of two plowshares, the roller part disposed laterally outside. grooves drawn by the coulters will not be active. Finally, when the roller encounters an obstacle, such as rocks, tree stump residues, tree branches, and the like, it is lifted so that it no longer performs its compaction function. plowed during this uplift phase. The object of the present invention is to eliminate the above drawbacks by proposing a plow system intended to be towed behind a tractor vehicle, comprising a chassis coupled to the vehicle. tractor and comprising a beam inclined with respect to the direction of advance of the tractor vehicle, and at least two plowing bodies, in particular plowshares, mounted on the inclined beam respectively by means of two support ages being offset laterally and longitudinally , and which is characterized in that it comprises at least two transverse soil compaction rollers fixed respectively to the two ages behind the plow bodies by being offset laterally so that each roller can flatten the strip of soil raised and turned over by the plow body with which the roller is associated. The compacting rollers, when viewed from behind, are adjacent and of a width so as to give the appearance of a single transverse roller. Each roller is advantageously constituted by a tire of the semi-hollow type with a flexible tread. Each support age of a plow body is fixed to the inclined beam of the chassis by being pivotally mounted on the beam around a transverse axis to allow the tilting of the plow body upwards when it meets an obstacle so to avoid damaging the plow body. A hydraulic cylinder is interposed between the inclined beam of the chassis and the age to automatically bring the plow body back to its working position after passing the obstacle. Each support age of a ploughshare in the shape of a ploughshare comprises a longitudinal vertical plate connected at its upper part to the beam inclined by the transverse pivot axis and the front part of which carries a vertical coulter, the plate comprising a clearance arched behind the vertical coulter, starting substantially from the upper end level of this coulter so that the clearance can deflect any obstacle, such as residue from stumps, branches or others, in the flow of plowed soil during the work of the corresponding plow body which is integral with the face of the vertical plate located opposite the beam inclined behind the vertical coulter. A longitudinal vertical plate is fixed to the inclined beam being adjacent to the pivoting vertical plate so as to provide lateral reinforcement of the pivoting plate. Each compacting roller is rotatably mounted on a transverse shaft fixed to the end of a rigid age bar by means of parallel articulated links forming a deformable parallelogram allowing the lifting of the roller relative to the corresponding age when 'he encounters an obstacle. The lower link has at its end opposite to that located on the roller side a spout limiting the downward pivoting of the link by coming to bear under the rigid age bar. The chassis is in the shape of a right triangle whose inclined beam forms the hypotenuse and one of the adjacent beam-shaped sides extends longitudinally and carries a vertical equilateral triangular plate mounted madly around a transverse axis, the plate triangular comprising three pneumatic wheels mounted idly respectively at the three vertices of the triangular plate so that two of the idler wheels laterally support the chassis on the ground and the triangular plate can rotate on itself when one of the wheels meets an obstacle. The chassis is fixed to the rear of the towing vehicle by a three-point hitch. The invention will be better understood, and other objects, characteristics, details and advantages thereof will appear more clearly in the explanatory description which follows, made with reference to the appended schematic drawings given solely by way of example. illustrating an embodiment of the invention and in which: FIG. 1 is a perspective three-quarter view of the plow system according to the invention; Figure 2 is a perspective side view of the plow system according to arrow II in Figure
1 ; la figure 3 est une vue de dessus du système de charrue suivant la flèche III de la figure 1 ; la figure 4 est une vue partielle en perspective suivant la flèche IV de la figure 1 ; la figure 5 est une vue en perspective suivant la flèche V de la figure 4 représentant le mode d'articulation d'un rouleau de tassement à un âge de support d ' un soc ; et la figure 6 est une vue semblable à celle de la figure 5 et représentant le soulèvement du rouleau lorsqu'il rencontre un obstacle. En se reportant aux figures, la référence 1 désigne le châssis d'une charrue destiné à être fixé à l'arrière d'un véhicule tracteur, non représenté, par un dispositif d'attelage classique à trois points 2a, 2b et 2c. Le châssis 1 présente en vue de dessus sensiblement la forme d'un triangle rectangle dont l'hypoténuse 3 est constituée par une poutre inclinée par rapport au sens d'avance A du véhicule tracteur et l'un des côtés adjacents à la poutre 3 est également constitué par une poutre 4 parallèle au sens d'avance A de ce véhicule. Les deux poutres 3, 4 sont reliées l'une à l'autre par une traverse 5 constituant le troisième côté du châssis 1 et s 'étendant transversalement au sens d'avance A du véhicule tracteur. La traverse 5 du châssis 1 porte les trois chapes 6 faisant parties du dispositif d'attelage relevable à trois points du châssis 1 au véhicule tracteur. La poutre inclinée 3 porte un certain nombre de corps de labour 7 de préférence à socs et dans le cas présent au nombre de trois, bien qu'un nombre différent pourrait être prévu. Les socs 7 sont montés sur la poutre inclinée 3 par 1 ' intermédiaire respectivement de trois âges de support 8 en étant décalés latéralement et longitudinalement. Selon l'invention, la charrue est en outre équipée dans le cas présent de trois rouleaux transversaux 9 de tassement du sol fixés respectivement aux trois âges 8 en arrière des socs 7 en étant décalés latéralement de manière que chaque rouleau 9 puisse aplanir la bande de terre soulevée et retournée par le versoir 10 du soc 7 auquel est associé le rouleau 9. De préférence, chaque rouleau 9 est constitué par un pneumatique du type semi -creux à bande de roulement souple, connu en soi permettant un excellent réappuyage du sol et produisant un effet autonettoyant empêchant ainsi la terre d'adhérer à la bande de roulement. Chaque âge 8 de support d'un soc 7 est fixé à la poutre inclinée 3 du châssis 1 en étant monté pivotant à cette poutre autour d'un axe transversal 11 pour permettre le basculement vers le haut du soc 7 lorsqu'il rencontre un obstacle, tel que des roches, des résidus de souches, des branches, de manière à éviter d'abîmer le soc, ce dernier revenant à sa position de travail une fois l'obstacle dépassé. Chaque âge de support 8 d ' un soc 7 comprend une plaque verticale longitudinale 12 dont la partie inférieure avant porte un coutre vertical 13 et une deuxième plaque 14 approximativement en forme de L inversé solidaire de la plaque 12 parallèlement à celle- ci par l'intermédiaire d' entretoises transversales 15 de manière que la partie supérieure de la plaque 12 et l'extrémité de la petite branche du L inversé de la plaque 14 soient montées pivotantes à la poutre inclinée 3 autour de l'axe transversal 11. Les plaques 12 et 14, qui s'étendent parallèlement au sens d'avance A du véhicule tracteur, sont fixées à la poutre inclinée 3 par l'intermédiaire d'un ensemble 16 formant à la fois bride de fixation à la poutre 3 et chape d'articulation des plaques 12, 14 de l'âge correspondant 8. Chaque ensemble 16 peut être constitué par une plaque rigide longitudinale 17 fixée à la poutre inclinée 3 par des boulons 18 et une plaque rigide longitudinale 19 solidaire par soudage de la poutre inclinée 3 et adjacente à la plaque pivotante 12 en étant en contact glissant avec cette dernière, la plaque 19 permettant de renforcer latéralement la plaque pivotante 12 pour qu'elle résiste aux efforts de déformation transversale lors du travail du soc correspondant 7. Chaque soc 7 est fixé par soudage à la face de la plaque pivotante correspondante 12 située à l'opposé de la poutre inclinée 3 en arrière du coutre vertical 13. Un vérin hydraulique de conception à double effet 20 est utilisé à simple effet et est interposé entre l'âge 8 de support d'un soc 7 et la poutre inclinée 3 de manière à ramener automatiquement le soc 7 à sa position de travail après que ce dernier a dépassé un obstacle l'ayant soulevé vers le haut autour de l'axe de pivotement 11. Chaque vérin 20 a son cylindre monté pivotant autour d'un axe transversal 21 fixé entre les plaques 17 et 19 et son extrémité de tige reliée de manière pivotante à un axe transversal 22 fixé entre les deux plaques pivotantes 12, 14. Lors du pivotement ascendant des plaques pivotantes 12, 14, le corps du vérin 20 se rapproche de l'axe de pivotement 11. Chaque rouleau de tassement 9 est monté à rotation sur un arbre transversal de support 23 qui est fixé à une extrémité d'une barre rigide inclinée 24 par l'intermédiaire de biellettes articulées formant un parallélogramme deformable 25 permettant le soulèvement du rouleau 9 lorsqu'il rencontre un obstacle. La barre rigide inclinée 24 est solidaire par soudage des parties inférieures des deux plaques pivotantes 12, 14 de l'âge 8 et porte à son extrémité libre arrière deux bras rigides 26 en forme de plaque s 'étendant vers le haut et fixés par soudage à la barre 24 à leurs extrémités inférieures. Deux biellettes parallèles 27 ont deux de leurs extrémités situées d'un même côté montées pivotantes respectivement à deux axes transversaux supérieur et inférieur 28 fixés entre les deux bras rigides parallèles 26. Deux autres bras rigides parallèles en forme de plaque 29 sont fixés à leurs extrémités inférieures par soudage à la barre 23 en s 'étendant vers le haut perpendiculairement relativement à cette dernière. Les deux biellettes 27 ont leurs extrémités opposées aux axes de pivotement 28 montées également de manière pivotante respectivement à deux axes supérieur et inférieur 30 fixés entre les deux bras 29. Les bras rigides 26, 29 et les biellettes 27 s'étendent respectivement dans des plans verticaux parallèles au sens avance A du véhicule tracteur lorsque le châssis 1 est attelé à ce dernier. Comme cela ressort mieux de la figure 3, les trois rouleaux 9 sont décalés latéralement de telle manière que la face latérale interne de la jante du rouleau 9 le plus à gauche au vue de cette figure soit sensiblement dans le même plan vertical que la face latérale externe de la jante du rouleau intermédiaire 9 dont la face latérale interne est sensiblement également dans le même plan vertical que la face latérale externe de la jante du rouleau 9 le plus en arrière. De la sorte, lorsque les rouleaux 9 sont vus de l'arrière comme indiqué par la flèche B, ceux-ci donnent l'apparence d'un rouleau transversal unique. Ainsi, lorsque le châssis 1 se déplace dans le sens d'avancement A, la terre soulevée et retournée par les trois versoirs 10 des socs 7 est tassée respectivement par les trois rouleaux 9 situés immédiatement en sortie des socs 7. Pendant le travail de la charrue, les socs 7 peuvent pivoter vers le haut autour de leurs axes de pivotement respectifs 11 indépendamment les uns des autres lorsqu'ils rencontrent un obstacle sur leur trajectoire et chaque rouleau 9 peut pivoter vers le haut relativement aux socs associés 7 lorsqu'il rencontre un obstacle . Le débattement vers le bas de chaque rouleau 9 est limité par une partie en forme de bec 27a de la biellette inférieure 27 et réalisé à son extrémité opposée aux bras 29 en étant situé en dessous de l'axe longitudinal de la biellette 27, le bec pouvant venir en appui sur la face inférieure de l'extrémité de la barre rigide 24 comme représenté en figure 5. Par ailleurs, chaque plaque pivotante 12 d'un âge 8 de support d'un soc 7 comporte une partie évidée ou dégagement arqué 12a réalisé en arrière du coutre vertical 13 au dessus de celui-ci en partant sensiblement du niveau d'extrémité supérieure de ce coutre. Le dégagement 12a du coutre vertical 13 a pour fonction de laisser s'écouler au fur et à mesure du travail de la charrue les corps étrangers, tels que résidus de souches, branches, mulching, se trouvant entraînés par le flux de la terre labourée, évitant de la sorte tout bourrage vertical. L'écoulement optimum est obtenu dès que la partie verticale supérieur du coutre 13 est au niveau ou légèrement inférieur au niveau du sol naturel de façon que le dégagement 12a dévie tout obstacle susmentionné dans le flux de terre labourée. Lors de son déplacement dans le sens A, le châssis 1 est supporté latéralement à l'opposé des trois rouleaux 9 par un ensemble à trois roues à pneumatiques 31 dont deux entre elles sont en appui sur le sol. Les trois roues 31 sont montées folles respectivement aux trois extrémités ou sommets d'une plaque verticale 32 sensiblement en forme de triangle équilatéral elle-même montée folle autour d'un axe transversal 33 de la poutre longitudinal 4 du châssis 1. Comme mieux représenté aux figures 2 et 3 , l'axe rotatif de support 33 de la plaque 32 est fixé à la poutre 4 en dessous de cette dernière par une bride de fixation 34 à plaques verticales parallèles 34a fixées à la poutre 4 de chaque côté de celle-ci par des boulons transversaux 35. Lorsque l'une des roues 31, par exemple la roue avant, rencontre un obstacle, tel que des rochers, lors du déplacement dans le sens A du châssis 1, l'ensemble des trois roues 31 pivote autour de l'axe de rotation 33 de la plaque 32 dans le sens contraire des aiguilles d'une montre en considérant la figure 2 de manière à amener la roue supérieure 31 en appui sur le sol, la deuxième roue arrière qui était précédemment en appui sur le sol occupant alors une position supérieure inactive. La charrue est représentée aux figures en position inactive de transport et pour assurer sa stabilité, le châssis comporte associée à la poutre longitudinale 4 au moins une béquille d'appui 35 pouvant être immobilisée par une vis de blocage 37 dans un fourreau 36 solidaire par soudage de la face externe de la poutre 4 perpendiculairement à son axe longitudinal. En position d'utilisation de la charrue, la béquille 35 est remontée vers le haut au travers du fourreau 36 et bloquée à cette position par la vis de blocage 37. Les rouleaux de tassement 9 peuvent être montés de la même manière que précisément décrite en arrière respectivement de disques de labourage d'une charrue au lieu et place des socs. Chaque rouleau de tassement 9 peut être aisément démonté de l'âge de support 8 par retrait des axes de pivotement 28 maintenus entre les deux bras 26 par des goupilles amovibles 28a. 1; Figure 3 is a top view of the plow system according to arrow III of Figure 1; Figure 4 is a partial perspective view along arrow IV of Figure 1; Figure 5 is a perspective view along arrow V of Figure 4 showing the mode of articulation of a compacting roller at a support age of a share; and Figure 6 is a view similar to that of Figure 5 and showing the lifting of the roller when it encounters an obstacle. Referring to the figures, the reference 1 designates the chassis of a plow intended to be fixed to the rear of a tractor vehicle, not shown, by a conventional three-point coupling device 2a, 2b and 2c. The chassis 1 has a top view substantially in the form of a right triangle whose hypotenuse 3 consists of a beam inclined relative to the direction of advance A of the towing vehicle and one of the sides adjacent to the beam 3 is also constituted by a beam 4 parallel to the direction of advance A of this vehicle. The two beams 3, 4 are connected to each other by a cross member 5 constituting the third side of the chassis 1 and extending transversely to the direction of advance A of the towing vehicle. The cross member 5 of the chassis 1 carries the three yokes 6 forming part of the three-point hitching device of the chassis 1 to the towing vehicle. The inclined beam 3 carries a certain number of plowing bodies 7 preferably with coulters and in this case three in number, although a different number could be provided. The plowshares 7 are mounted on the inclined beam 3 by means of three support ages 8 respectively, being offset laterally and longitudinally. According to the invention, the plow is further equipped in the present case with three transverse rollers 9 for soil compaction fixed respectively to the three ages 8 behind the plowshares 7 while being offset laterally so that each roller 9 can flatten the strip of earth raised and turned upside down by the moldboard 10 of the ploughshare 7 with which the roller 9 is associated. Preferably, each roller 9 is constituted by a tire of the semi-hollow type with flexible tread, known per se allowing excellent re-pressing of the soil and producing a self-cleaning effect thus preventing the earth from adhering to the tread. Each age 8 of support for a ploughshare 7 is fixed to the inclined beam 3 of the chassis 1 while being pivotally mounted to this beam around a transverse axis 11 to allow the ploughshare to tilt upwards when it encounters an obstacle , such as rocks, residue from stumps, branches, so as to avoid damaging the ploughshare, the latter returning to its working position once the obstacle has been overcome. Each support age 8 of a ploughshare 7 comprises a longitudinal vertical plate 12, the lower front part of which carries a vertical coulter 13 and a second plate 14 approximately in the shape of an inverted L fixed to the plate 12 parallel to it by the intermediate transverse spacers 15 so that the upper part of the plate 12 and the end of the small branch of the inverted L of the plate 14 are pivotally mounted on the inclined beam 3 around the transverse axis 11. The plates 12 and 14, which extend parallel to the direction of advance A of the towing vehicle, are fixed to the inclined beam 3 by means of an assembly 16 forming both a flange for fixing to the beam 3 and a yoke hinge plates 12, 14 of the corresponding age 8. Each assembly 16 may be constituted by a rigid longitudinal plate 17 fixed to the inclined beam 3 by bolts 18 and a rigid longitudinal plate 19 secured by welding the inclined beam 3 and adjacent to the pivoting plate 12 while being in sliding contact with the latter, the plate 19 making it possible to laterally reinforce the pivoting plate 12 so that it resists the forces of transverse deformation during the work of the corresponding coulter 7. Each coulter 7 is fixed by welding to the face of the corresponding pivoting plate 12 located opposite the inclined beam 3 behind the vertical coulter 13. A hydraulic cylinder of double-acting design 20 is used with simple effect and is interposed between the age 8 of support of a share 7 and the inclined beam 3 so as to automatically return the share 7 to its working position after the latter has passed an obstacle having raised it upwards around the pivot axis 11. Each cylinder 20 has its cylinder mounted pivoting about a transverse axis 21 fixed between the plates 17 and 19 and its rod end pivotally connected to a transverse axis 22 fixed between the two pivoting plates 12, 14. During the upward pivoting of the pivoting plates 12, 14, the cylinder body 20 approaches the pivot axis 11. Each compacting roller 9 is rotatably mounted on a transverse support shaft 23 which is fixed to one end of an inclined rigid bar 24 by means of articulated links forming a deformable parallelogram 25 allowing the lifting of the roller 9 when it encounters an obstacle. The inclined rigid bar 24 is joined by welding the lower parts of the two pivoting plates 12, 14 of age 8 and carries at its rear free end two rigid arms 26 in the form of a plate extending upwards and fixed by welding to the bar 24 at their lower ends. Two parallel links 27 have two of their ends situated on the same side pivotally mounted respectively with two upper and lower transverse axes 28 fixed between the two parallel rigid arms 26. Two other parallel rigid plate-shaped arms 29 are fixed at their ends lower by welding to the bar 23 extending upward perpendicularly relative to the latter. The two links 27 have their ends opposite to the pivot axes 28 also mounted so as to pivot respectively to two upper and lower axes 30 fixed between the two arms 29. The rigid arms 26, 29 and the links 27 extend respectively in planes vertical parallel to the forward direction A of the towing vehicle when the chassis 1 is coupled to the latter. As can be seen more clearly from FIG. 3, the three rollers 9 are offset laterally so that the internal lateral face of the rim of the roller 9 furthest to the left in view of this figure is substantially in the same vertical plane as the lateral face external of the rim of the intermediate roller 9, the internal lateral face of which is also substantially in the same vertical plane as the external lateral face of the rim of the rearmost roller 9. In this way, when the rollers 9 are seen from the rear as indicated by the arrow B, these give the appearance of a single transverse roller. Thus, when the chassis 1 moves in the direction of advance A, the soil raised and turned over by the three moldboards 10 of the plowshares 7 is compacted respectively by the three rollers 9 located immediately at the outlet of the plowshares 7. During the plow work, the coulters 7 can pivot upwards around their respective pivot axes 11 independently of each other when they encounter an obstacle in their path and each roller 9 can pivot upwards relative to the associated coulters 7 when it encounters an obstacle. The downward movement of each roller 9 is limited by a beak-shaped part 27a of the lower link 27 and produced at its end opposite the arms 29, being located below the longitudinal axis of the link 27, the beak which can come to bear on the underside of the end of the rigid bar 24 as shown in FIG. 5. Furthermore, each pivoting plate 12 of an age 8 for supporting a ploughshare 7 comprises a hollowed out part or arcuate clearance 12a made behind the vertical coulter 13 above it, starting substantially from the upper end level of this coulter. The clearance 12a of the vertical coulter 13 has the function of allowing foreign bodies, such as residue from stumps, branches, mulching, to flow away as the plow works, being entrained by the flow of plowed soil, thus avoiding any vertical jam. The optimum flow is obtained as soon as the upper vertical part of the coulter 13 is at or slightly below the level of the natural soil so that the clearance 12a deflects any aforementioned obstacle in the flow of plowed soil. During its movement in direction A, the frame 1 is supported laterally opposite the three rollers 9 by a set of three pneumatic wheels 31, two of which are supported on the ground. The three wheels 31 are mounted idle respectively at the three ends or vertices of a vertical plate 32 substantially in the shape of an equilateral triangle itself mounted idly around a transverse axis 33 of the beam longitudinal 4 of the chassis 1. As best represented in FIGS. 2 and 3, the rotary support axis 33 of the plate 32 is fixed to the beam 4 below the latter by a fixing flange 34 with parallel vertical plates 34a fixed to the beam 4 on each side of the latter by transverse bolts 35. When one of the wheels 31, for example the front wheel, encounters an obstacle, such as rocks, during movement in the direction A of the chassis 1, the set of three wheels 31 pivots around the axis of rotation 33 of the plate 32 counterclockwise while considering FIG. 2 so as to bring the upper wheel 31 to bear on the ground, the second rear wheel which was previously in contact with the ground, then occupying an inactive upper position. The plow is shown in the figures in the inactive transport position and to ensure its stability, the chassis comprises associated with the longitudinal beam 4 at least one support stand 35 which can be immobilized by a locking screw 37 in a sheath 36 secured by welding of the external face of the beam 4 perpendicular to its longitudinal axis. In the position of use of the plow, the stand 35 is raised upwards through the sheath 36 and locked in this position by the locking screw 37. The compacting rollers 9 can be mounted in the same manner as precisely described in rear respectively of plowing discs of a plow instead of plowshares. Each compacting roller 9 can be easily removed from the support age 8 by removing the pivot pins 28 held between the two arms 26 by removable pins 28a.

Claims

REVEND I CAT IONS RESELL I CAT IONS
1. Système de charrue destiné à être remorqué derrière un véhicule tracteur, comprenant un châssis (1) attelé au véhicule tracteur et comportant une poutre (3) inclinée par rapport au sens d'avancement (A) du véhicule tracteur, et au moins deux corps de labour (7) , notamment à socs, montés sur la poutre inclinée (3) par l'intermédiaire respectivement de deux âges de support (8) en étant décalés latéralement et longitudinalement, caractérisé en ce qu'il comprend au moins deux rouleaux transversaux (9) de tassement du sol fixés respectivement aux deux âges (8) en arrière des corps de labour (7) en étant décalés latéralement de manière que chaque rouleau (9) puisse aplanir la bande de terre soulevée et retournée par le corps de labour (7) auquel est associé le rouleau (9) . 1. Plow system intended to be towed behind a towing vehicle, comprising a chassis (1) coupled to the towing vehicle and comprising a beam (3) inclined with respect to the direction of advance (A) of the towing vehicle, and at least two plow body (7), in particular with plowshares, mounted on the inclined beam (3) respectively via two support ages (8) being offset laterally and longitudinally, characterized in that it comprises at least two rollers transverse (9) soil compaction fixed respectively to the two ages (8) behind the plowing bodies (7) being offset laterally so that each roller (9) can flatten the strip of soil raised and returned by the body plowing (7) with which the roller (9) is associated.
2. Système selon la revendication 1, caractérisé en ce que les rouleaux de tassement (9) , lorsque vus en arrière, sont adjacents et d'une largeur de manière à donner l'apparence d'un rouleau transversal unique. 2. System according to claim 1, characterized in that the compacting rollers (9), when viewed from behind, are adjacent and of a width so as to give the appearance of a single transverse roller.
3. Système selon la revendication 1 ou 2, caractérisé en ce que chaque rouleau (9) est constitué par un pneumatique du type semi-creux à bande de roulement souple. 3. System according to claim 1 or 2, characterized in that each roller (9) is constituted by a tire of the semi-hollow type with flexible tread.
4. Système selon l'une des revendications précédentes, caractérisé en ce que chaque âge (8) de support d'un corps de labour (7) est fixé à la poutre inclinée (3) du châssis (1) en étant monté pivotant à la poutre (3) autour d'un axe transversal (11) pour permettre le basculement vers le haut du corps de labour (7) lorsqu'il rencontre un obstacle de manière à éviter d'abîmer le corps de labour (7) . 4. System according to one of the preceding claims, characterized in that each age (8) of support for a plowing body (7) is fixed to the inclined beam (3) of the chassis (1) by being pivotally mounted at the beam (3) around a transverse axis (11) to allow the tilting of the plow body (7) upwards when it encounters an obstacle so as to avoid damaging the plow body (7).
5. Système selon la revendication 4, caractérisé en ce qu'un vérin hydraulique (20) est interposé entre la poutre inclinée (3) du châssis (1) et l'âge (8) pour ramener automatiquement le corps de labour (7) à sa position de travail après avoir dépassé l'obstacle. 5. System according to claim 4, characterized in that a hydraulic cylinder (20) is interposed between the inclined beam (3) of the frame (1) and the age (8) for automatically return the plow body (7) to its working position after passing the obstacle.
6. Système selon l'une des revendications précédentes, caractérisé en ce que chaque âge (8) de support d'un corps de labour en forme de soc (7) comprend une plaque verticale longitudinale (12) reliée à sa partie supérieure à la poutre inclinée (3) par l'axe transversal de pivotement (11) et dont la partie avant porte un coutre vertical (13), la plaque (12) comportant un dégagement arqué (12a) réalisé en arrière du coutre vertical (13) en partant sensiblement du niveau d'extrémité supérieure de ce coutre de manière que le dégagement (12a) puisse dévier tout obstacle, tel que résidus de souches, branches ou autres, dans le flux de terre labourée lors du travail du corps de labour correspondant (7) solidaire de la face de la plaque verticale (12) située à l'opposé de la poutre inclinée (3) en arrière du coutre vertical (13) . 6. System according to one of the preceding claims, characterized in that each age (8) of support for a ploughshare in the form of a ploughshare (7) comprises a longitudinal vertical plate (12) connected at its upper part to the beam inclined (3) by the transverse pivot axis (11) and the front part of which carries a vertical coulter (13), the plate (12) comprising an arcuate clearance (12a) produced behind the vertical coulter (13) in starting substantially from the upper end level of this coulter so that the clearance (12a) can deflect any obstacle, such as residue from stumps, branches or the like, in the flow of plowed soil during the work of the corresponding plow body (7 ) integral with the face of the vertical plate (12) located opposite the inclined beam (3) behind the vertical coulter (13).
7. Système selon la revendication 6, caractérisé en ce qu'une plaque verticale longitudinale (19) est fixée à la poutre inclinée (3) en étant adjacente à la plaque verticale pivotante (12) de manière à assurer un renforcement latéral de la plaque pivotante (12) . 7. System according to claim 6, characterized in that a longitudinal vertical plate (19) is fixed to the inclined beam (3) being adjacent to the pivoting vertical plate (12) so as to provide lateral reinforcement of the plate pivoting (12).
8. Système selon l'une des revendications précédentes, caractérisé en ce que chaque rouleau de tassement (9) est monté à rotation sur un arbre transversal (23) fixé à l'extrémité d'une barre rigide (24) de l'âge (8) par l'intermédiaire de biellettes parallèles articulées (27) formant un parallélogramme deformable (25) permettant le soulèvement du rouleau (9) relativement à l'âge correspondant lorsqu'il rencontre un obstacle . 8. System according to one of the preceding claims, characterized in that each compacting roller (9) is rotatably mounted on a transverse shaft (23) fixed to the end of a rigid bar (24) of age (8) by means of articulated parallel links (27) forming a deformable parallelogram (25) allowing the lifting of the roller (9) relative to the corresponding age when it encounters an obstacle.
9. Système selon la revendication 8, caractérisé en ce que la biellette inférieure (27) du parallélogramme deformable (25) comporte à son extrémité opposée à celle située côté rouleau (9) un bec (27a) limitant le pivotement vers le bas de la biellette (27) en venant en appui sous la barre rigide (24) de l'âge (8) . 9. System according to claim 8, characterized in that the lower link (27) of the deformable parallelogram (25) has at its end opposite to that located on the roller side (9) a spout (27a) limiting the pivoting down the link (27) coming to bear under the rigid bar (24) of age (8).
10. Système selon l'une des revendications précédentes, caractérisé en ce que le châssis (1) est en forme de triangle rectangle dont la poutre inclinée (3) en constitue l'hypoténuse et l'un des côtés adjacents en forme de poutre (4) s'étend longitudinalement et porte une plaque triangulaire équilatérale verticale (32) montée folle autour d'un axe transversal (33), la plaque triangulaire (32) comportant trois roues à pneumatiques (31) montées folles respectivement aux trois sommets de la plaque triangulaire (32) de manière que deux des roues folles (31) supportent latéralement le châssis (1) sur le sol et la plaque triangulaire (32) puisse tourner sur elle-même lorsque l'une des roues (31) rencontre un obstacle . 10. System according to one of the preceding claims, characterized in that the frame (1) is in the form of a right triangle whose inclined beam (3) constitutes the hypotenuse and one of the adjacent sides in the form of a beam ( 4) extends longitudinally and carries a vertical equilateral triangular plate (32) mounted loosely around a transverse axis (33), the triangular plate (32) comprising three pneumatic wheels (31) mounted idly respectively at the three peaks of the triangular plate (32) so that two of the idler wheels (31) laterally support the frame (1) on the ground and the triangular plate (32) can turn on itself when one of the wheels (31) encounters an obstacle .
11. Système selon l'une des revendications précédentes, caractérisé en ce que le châssis (1) est fixé à l'arrière du véhicule tracteur par un dispositif d'attelage relevable à trois points (2a, 2b, 2c). 11. System according to one of the preceding claims, characterized in that the chassis (1) is fixed to the rear of the tractor vehicle by a three-point hitching device (2a, 2b, 2c).
PCT/FR2005/000091 2004-01-19 2005-01-14 Plow system having plowshares WO2005077137A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0400448A FR2865101B1 (en) 2004-01-19 2004-01-19 PLOWING SYSTEM WITH SOCS.
FR0400448 2004-01-19

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WO2005077137A3 WO2005077137A3 (en) 2009-01-15

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FR2917568B1 (en) * 2007-06-22 2012-12-07 Cooperative Agricole Et Forestiere Sud Atlantique MULTIFUNCTIONAL MACHINE FOR SOIL WORKING.
FR3104375B1 (en) * 2019-12-11 2022-03-11 Kuhn Huard S A S Plow with at least one additional tillage device
RU207224U1 (en) * 2021-08-02 2021-10-18 Федеральное государственное бюджетное образовательное учреждение высшего образования "Ульяновский государственный аграрный университет имени П.А. Столыпина" COMBINED TILLAGE UNIT

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DE347046C (en) * 1922-01-13 Stock Motorpflug A G Arrangement of soil packers on plows
DE508832C (en) * 1930-10-02 Hermann Glatz Plow with attached crusher roller
US2511067A (en) * 1947-07-31 1950-06-13 H E Vaughan Cultivating attachment for plows
US3901326A (en) * 1965-09-13 1975-08-26 Geurts Inc Earthworking implement tool assembly
FR2346951A1 (en) * 1976-04-09 1977-11-04 Rigaux Roger Reversible plough with clod crushers - having support arms pivoted onto main beam for rotation through 360 degrees
EP0181039A2 (en) * 1984-11-09 1986-05-14 C. van der Lely N.V. A plough
DE3705952A1 (en) * 1986-09-16 1988-09-08 Amazonen Werke Dreyer H Ground roller
DE3906503C1 (en) * 1989-03-01 1990-07-19 Georg 8941 Egg De Steuer Soil-working appliance

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE347046C (en) * 1922-01-13 Stock Motorpflug A G Arrangement of soil packers on plows
DE508832C (en) * 1930-10-02 Hermann Glatz Plow with attached crusher roller
US2511067A (en) * 1947-07-31 1950-06-13 H E Vaughan Cultivating attachment for plows
US3901326A (en) * 1965-09-13 1975-08-26 Geurts Inc Earthworking implement tool assembly
FR2346951A1 (en) * 1976-04-09 1977-11-04 Rigaux Roger Reversible plough with clod crushers - having support arms pivoted onto main beam for rotation through 360 degrees
EP0181039A2 (en) * 1984-11-09 1986-05-14 C. van der Lely N.V. A plough
DE3705952A1 (en) * 1986-09-16 1988-09-08 Amazonen Werke Dreyer H Ground roller
DE3906503C1 (en) * 1989-03-01 1990-07-19 Georg 8941 Egg De Steuer Soil-working appliance

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FR2865101A1 (en) 2005-07-22
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