FR2976155A1 - Farm tractor, has frame part located in front of driver's post, and sliding beam set with respect to central beam, where front portion of sliding beam is hinged and articulated around axis and bears front wheels and tool holder - Google Patents

Farm tractor, has frame part located in front of driver's post, and sliding beam set with respect to central beam, where front portion of sliding beam is hinged and articulated around axis and bears front wheels and tool holder Download PDF

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Publication number
FR2976155A1
FR2976155A1 FR1101732A FR1101732A FR2976155A1 FR 2976155 A1 FR2976155 A1 FR 2976155A1 FR 1101732 A FR1101732 A FR 1101732A FR 1101732 A FR1101732 A FR 1101732A FR 2976155 A1 FR2976155 A1 FR 2976155A1
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France
Prior art keywords
sliding beam
sliding
front portion
post
wheels
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Pending
Application number
FR1101732A
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French (fr)
Inventor
Pierre Bouhours
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BOUHOURS ET CIE
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BOUHOURS ET CIE
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Publication date
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Priority to FR1101732A priority Critical patent/FR2976155A1/en
Publication of FR2976155A1 publication Critical patent/FR2976155A1/en
Pending legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62DMOTOR VEHICLES; TRAILERS
    • B62D49/00Tractors
    • B62D49/06Tractors adapted for multi-purpose use
    • B62D49/0678Tractors of variable track width or wheel base
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01BSOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
    • A01B51/00Undercarriages specially adapted for mounting-on various kinds of agricultural tools or apparatus
    • A01B51/02Undercarriages specially adapted for mounting-on various kinds of agricultural tools or apparatus propelled by a motor
    • A01B51/026Undercarriages specially adapted for mounting-on various kinds of agricultural tools or apparatus propelled by a motor of the automotive vehicle type, e.g. including driver accommodation

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Soil Sciences (AREA)
  • Environmental Sciences (AREA)
  • Agricultural Machines (AREA)

Abstract

The tractor has two driving aft wheels (2), a motor (3) and a driver's post (4) resting on a frame, where a part of the frame is located in front of the post. The part includes a central beam formed by an axial box beam (1) that is integrated with the frame. A sliding beam (9) is set with respect to the central beam, where a front portion of the sliding beam is hinged and articulated around an axis (11). The front portion bears front wheels (13) and a parallelogram shaped tool holder (14). An end of a jack is connected to the sliding beam, and another end of the jack is secured with box beam.

Description

Tracteur agricole à châssis relevable et réglable en longueur avec porte outillage avant L'invention concerne un tracteur à vocation agricole, permettant de travailler à l'avancement avec les outils devant le conducteur, éventuellement une pluralité d'outils, et de monter ceux -ci sans outillage annexe. The invention relates to an agricultural tractor, to work with the tools in front of the driver, possibly a plurality of tools, and to mount these tools. without auxiliary tools.

On connaît les tracteurs agricoles classiques, universellement utilisés, comportant un châssis court monobloc avec deux roues et le moteur à l'avant, la cabine, deux roues motrices arrière et des porte- outils à l'arrière montés en porte à faux. Ces tracteurs présentent tous les inconvénients majeurs suivants : -pour surveiller ses outils, le conducteur est obligé de travailler en regardant vers l'arrière ; d'une part cette position peu ergonomique est à l'origine de nombreuses pathologies professionnelles de la colonne vertébrale ; d'autre part, le fait de regarder vers l'arrière ne favorise pas la conduite et l'attention à porter aux obstacles éventuels, ni la qualité du travail et en particulier la rectitude des andains ou des sillons. - les masses sont mal réparties : il est nécessaire de lester l'avant du tracteur, pour éviter que sous l'effet du couple de renversement généré par le grand diamètre des roues arrières motrices et des efforts dus à la plongée vers l'arrière des outils de labour dans le sol en particulier, le tracteur ne se cabre et se renverse vers l'arrière ; ces accidents sont fréquents. - pour y pallier, les constructeurs surchargeant en conséquence l'avant du tracteur, le résultat est une consommation accrue et une détérioration plus profonde des sols. -enfin le montage des outils doit souvent être effectué avec des moyens annexes d'approche latérale de ceux-ci de leur emplacement de montage sous le porte- outils. Du fait du déséquilibre et de la tendance au renversement, on ne peut monter en général qu'un seul outil, obligeant à de multiples interventions et à des passages répétés sur la même zone de travail. Conventional agricultural tractors, universally used, are known, comprising a short one-piece chassis with two wheels and the engine at the front, the cab, two rear drive wheels and rear tool carriers mounted cantilever. These tractors have all the following major drawbacks: - to monitor his tools, the driver is forced to work looking backwards; on the one hand, this un ergonomic position is at the origin of many occupational pathologies of the spine; on the other hand, looking back does not favor the conduct and attention to be given to possible obstacles, nor the quality of the work and in particular the straightness of windrows or furrows. - the masses are poorly distributed: it is necessary to ballast the front of the tractor, to avoid that under the effect of the reversal torque generated by the large diameter of the rear wheel drive and efforts due to the dive backwards plowing tools in the ground in particular, the tractor does not pitch and tilts backwards; these accidents are frequent. - to overcome this, builders overloading the front of the tractor, the result is increased consumption and deeper deterioration of the soil. Finally, the assembly of the tools must often be carried out with ancillary means of lateral approach thereof from their mounting location under the tool holder. Because of the imbalance and the tendency to overturn, a single tool can usually be mounted, requiring multiple interventions and repeated passages on the same work area.

Afin de pallier ces inconvénients très graves, et qui n'ont pas trouvé de solution dans la configuration classique on a réalisé un tracteur de configuration entièrement nouvelle. Le tracteur selon l'invention comporte en combinaison : -un châssis fixe portant les roues arrières, le moteur et la cabine ; Il est solidaire d'un train roulant abaissable par exemple au moyen d'un ou plusieurs vérins hydrauliques, et articulé en avant des masses principales, c'est à dire le moteur et la cabine .Ce train roulant peut être télescopique ; ce châssis est formé d'une structure destinée à recevoir les éléments listés ci-dessus, et est prolongé vers l'avant par un longeron central formé d'une poutre maîtresse caisson de longueur suffisante pour permettre le coulissement et la reprise des efforts d'une prolongation ajustable en position longitudinale. -une poutre coulissante par rapport à la poutre maîtresse caisson formant le longeron central , de préférence à l'intérieur de celle-ci sur une longueur suffisante pour assurer le guidage et la rigidité de l'ensemble ainsi formé; l'avant de cette poutre coulissante est formé d'un segment articulé relevable portant les roues avant du tracteur et le porte -outils. Ce segment de poutre articulé relevable est actionné par exemple par un vérin à commande manuelle ou hydraulique dont une extrémité est liée au segment articulé relevable, et l'autre à la partie de la poutre coulissante, de préférence à sa partie supérieure. Selon une autre caractéristique de l'invention, le déplacement de la poutre coulissante est obtenu par l'action d'un vérin hydraulique, solidaire par une extrémité de la poutre maîtresse caisson axiale, et agissant par son autre extrémité sur cette poutre coulissante. Ce vérin pourra être indifféremment situé à l'intérieur ou à l'extérieur de la poutre maîtresse caisson axiale. Selon encore une autre caractéristique de l'invention , l'une de ces poutres est revêtue d'un produit favorisant le glissement, par exemple du téflon. In order to overcome these very serious drawbacks, and which have not found a solution in the conventional configuration, an entirely new configuration tractor has been realized. The tractor according to the invention comprises in combination: a fixed frame carrying the rear wheels, the engine and the cabin; It is secured to a drivetrain lowering for example by means of one or more hydraulic cylinders, and articulated forward masses, ie the engine and the cabin .This running gear can be telescopic; this frame is formed of a structure intended to receive the elements listed above, and is extended forward by a central spar formed of a box main beam of sufficient length to allow the sliding and the resumption of efforts of an adjustable extension in longitudinal position. a beam sliding relative to the box main beam forming the central spar, preferably inside thereof for a length sufficient to ensure the guiding and rigidity of the assembly thus formed; the front of this sliding beam is formed of a hinged articulated segment carrying the front wheels of the tractor and the tool holder. This hinged articulated beam segment is actuated for example by a manually operated cylinder or hydraulic one end of which is connected to the hinged articulated segment, and the other to the portion of the sliding beam, preferably at its upper part. According to another characteristic of the invention, the displacement of the sliding beam is obtained by the action of a hydraulic cylinder, secured by one end of the axial box girder, and acting at its other end on this sliding beam. This jack can be indifferently located inside or outside the axial box girder. According to yet another characteristic of the invention, one of these beams is coated with a product promoting sliding, for example Teflon.

Ces poutres peuvent être de section rectangulaire ou cylindrique, sans modifier l'invention. Les dessins annexés , donnés à titre d'exemple non limitatif, permettront de mieux comprendre les caractéristiques du tracteur et de son châssis selon l'invention. La figure 1 est une vue latérale du tracteur en position de travail La figure 2 est une vue de dessus du tracteur (figure 1 selon AA) La figure 3 est une vue latérale du tracteur avec la poutre avant relevable en position haute On a représenté sur la figure 1 une vue latérale d'un tracteur et de son châssis selon l'invention. Celui-ci comporte : Un châssis structuré autour d'un longeron central poutre caisson 1 supportant les roues arrières 2, le moteur 3 et le poste de conduite 4. Cette poutre caisson axiale 1 est solidaire de deux béquilles 5 à sa partie avant comportant des roues 6, articulées par rapport à cette poutre 1 autour d'axes 7 et relevables par des vérins hydrauliques 8 liés d'une part aux béquilles 5 et d'autre part à la poutre 1.Ces béquilles 5 sont relevées. A l'intérieur de la poutre 1, est montée une poutre coulissante 9 , dont la partie avant 10, est relevable vers le haut autour d'un axe d' articulation 11.Le relevage de cette partie avant 10 est obtenu par exemple par un vérin hydraulique 12 dont une extrémité est solidaire de la partie avant 10 et l'autre extrémité de la poutre coulissante 9. Cette partie avant 10 de la poutre coulissante 9, porte les roues avant 13 du tracteur et en dessous les parallélogrammes porte outils de type connu 14. These beams may be of rectangular or cylindrical section, without modifying the invention. The accompanying drawings, given by way of non-limiting example, will provide a better understanding of the characteristics of the tractor and its chassis according to the invention. Figure 1 is a side view of the tractor in the working position; Figure 2 is a top view of the tractor (Figure 1 according to AA); Figure 3 is a side view of the tractor with the front beam raised in a raised position; Figure 1 a side view of a tractor and its frame according to the invention. This comprises: A chassis structured around a central beam box girder 1 supporting the rear wheels 2, the engine 3 and the driving position 4. This axial box beam 1 is secured to two stands 5 at its front portion comprising wheels 6, articulated with respect to this beam 1 about axes 7 and liftable by hydraulic cylinders 8 linked on the one hand to the crutches 5 and on the other hand to the beam 1.These crutches 5 are raised. Inside the beam 1 is mounted a sliding beam 9, the front part 10 of which can be raised upwards about an axis of articulation 11. The lifting of this front part 10 is obtained for example by a hydraulic cylinder 12, one end of which is secured to the front part 10 and the other end of the sliding beam 9. This front part 10 of the sliding beam 9, carries the front wheels 13 of the tractor and below the parallelograms type tool holders known 14.

On a représenté sur la figure 2 une vue de dessus selon AA (figl) du tracteur et de son châssis selon l'invention. La partie arrière du châssis structuré autour de la poutre axiale 1, porte les roues 2. Les roues 6, portées par les béquilles 5, sont relevables par les vérins 8, solidaires du châssis. La poutre coulissante 9, comporte à sa partie avant supérieure un support 15 d'articulation du vérin 12, dont l'autre extrémité est solidaire de la poutre avant relevable 10. Celle -ci porte de chaque coté les roues avant 13 et à sa partie inférieure le parallélogramme porte-outils 14. On a représenté sur la figure 3 une vue latérale du tracteur et de son châssis, avec la poutre avant 10 relevée, les roues 13 ne s'appuyant plus au sol. Pour l'équilibre de l'ensemble, les 40 béquilles 5 ont été abaissées, leurs roues 6 s'appuyant au sol. On constate que dans cette configuration, le tracteur peut s'avancer au dessus des outils 16 déposés au sol préalablement dans l'axe du châssis (poutre axiale 1) du tracteur, ce qui permet, après que le tracteur se soit avancé, de les solidariser du parallélogramme porte outils 14 sans manipulation ou outillage annexe, après avoir affalé la poutre relevable 10 au dessus d'eux. There is shown in Figure 2 a top view along AA (figl) of the tractor and its frame according to the invention. The rear part of the chassis structured around the axial beam 1, carries the wheels 2. The wheels 6, carried by the legs 5, are lifted by the cylinders 8, integral with the frame. The sliding beam 9, has at its upper front part a support 15 for articulating the jack 12, the other end of which is secured to the front lifting beam 10. The latter carries on each side the front wheels 13 and its part The parallelogram of the tool carrier 14 is shown below. FIG. 3 shows a side view of the tractor and its chassis with the front beam raised, the wheels 13 no longer resting on the ground. For the balance of all, the 40 crutches 5 were lowered, their wheels 6 resting on the ground. It is found that in this configuration, the tractor can advance above the tools 16 deposited on the ground previously in the axis of the chassis (axial beam 1) of the tractor, which allows, after the tractor is advanced, the fastening the parallelogram tool holder 14 without handling or auxiliary tools, after slumping the luffing beam 10 above them.

On a également représenté un vérin 17 solidaire de la poutre fixe 1 et de la poutre coulissante 9. La nouveauté et les avantages du tracteur selon l'invention ressortent à l'évidence de la description et des dessins ci-dessus . Les outils 16 étant placés devant le conducteur dans la cabine 4, celui -ci n'a pas à se retourner pour suivre leur action, et sa position est ergonomique ; de plus , regardant devant lui, la qualité du travail, la rectitude des déplacements et la sécurité sont assurées. Les outils 16 étant placés entre les roues arrières 2 et les roues avant 13 d'une part, les masses principales (moteur 3, cabine 4, châssis 1,poutre coulissante 9 )étant également placées sur le quadrilatère d'appui défini par les roues, ainsi que la réaction des outils 16, le cabrage et le renversement ne sont plus possibles, même sur terrain montant. II n'y a donc pas à surcharger l'ensemble, ce qui réduit la consommation et la dégradation des sols ; Enfin le montage des outils 16 est simplifié, et du fait de l'allongement possible par coulissement de 9 dans la poutre 1 on peut monter plusieurs outils alignés travaillant en séquence simultanément (désherbant thermique sur le rang, semis, binage inter-rang et dépôt de fertilisant par exemple mais non limitativement. Ceci concourt à la productivité, à l'économie de carburant et à la préservation des sols. There is also shown a cylinder 17 secured to the fixed beam 1 and the sliding beam 9. The novelty and advantages of the tractor according to the invention are evident from the description and drawings above. The tools 16 being placed in front of the driver in the cabin 4, it does not have to turn to follow their action, and its position is ergonomic; moreover, looking ahead, the quality of work, the straightness of travel and security are assured. The tools 16 being placed between the rear wheels 2 and the front wheels 13 on the one hand, the main masses (motor 3, cabin 4, chassis 1, sliding beam 9) are also placed on the support quadrilateral defined by the wheels , as well as the reaction of the tools 16, the pitching and the reversal are no longer possible, even on the ground. There is therefore no need to overload the whole, which reduces the consumption and degradation of the soil; Finally the assembly of the tools 16 is simplified, and because of the possible elongation by sliding of 9 in the beam 1 can be mounted several aligned tools working in sequence simultaneously (thermal weed on the row, sowing, hoe inter-row and deposit fertilizer, for example but not exclusively, which contributes to productivity, fuel economy and soil conservation.

Claims (5)

REVENDICATIONS1) Tracteur agricole comportant deux roues arrières motrices, un moteur et un poste de conduite reposant sur un châssis, caractérisé en ce que la partie du châssis situé à l'avant du poste de conduite 4 est constitué : -d'un longeron central 1 formé d'une poutre caisson solidaire du châssis -d'une poutre coulissante 9 par rapport à ce longeron central 1, la partie avant 10 de cette poutre coulissante 9 étant relevable et articulée autour d'un axe 11, cette partie avant 10 portant les roues avant 13 ainsi que les parallélogrammes porte - outils 14. CLAIMS1) Agricultural tractor comprising two rear wheel drive, a motor and a driving position resting on a frame, characterized in that the portion of the frame located at the front of the driving position 4 consists of: -a central spar 1 formed of a box beam secured to the frame -a sliding beam 9 relative to the central spar 1, the front portion 10 of the sliding beam 9 being liftable and articulated about an axis 11, this front portion 10 carrying the front wheels 13 and parallelograms 14. 2) Tracteur agricole selon la revendication 1, caractérisé en ce que des béquilles 5 por-10 tant des roues 6 relevables sont articulées par rapport à des axes 7 solidaires du châ sis longeron central 1. 2) agricultural tractor according to claim 1, characterized in that crutches 5 por-10 as louvers 6 are hinged relative to the axes 7 integral with the ch s sis central spar 1. 3) Tracteur agricole selon la revendication 1, caractérisé en ce que la poutre coulissante 9 est reliée à un vérin 17 par une extrémité, l'autre extrémité du vérin étant solidaire de la poutre caisson 1. 15 3) agricultural tractor according to claim 1, characterized in that the sliding beam 9 is connected to a cylinder 17 at one end, the other end of the cylinder being secured to the box beam 1. 15 4) Tracteur agricole selon la revendication 1, caractérisé en ce que la partie avant 10 rele vable de la poutre coulissante 9 est solidaire d'un vérin 12 dont l'autre extrémité est solidaire de la partie coulissante 9. 4) agricultural tractor according to claim 1, characterized in that the front portion 10 rele vable of the sliding beam 9 is integral with a cylinder 12 whose other end is integral with the sliding portion 9. 5) Tracteur agricole selon la revendication 1, caractérisé en ce que la poutre coulissante 9 a une section extérieure identi que à la section intérieure de la poutre caisson 1. 20 5) agricultural tractor according to claim 1, characterized in that the sliding beam 9 has an outer section identi than the inner section of the box beam 1. 20
FR1101732A 2011-06-07 2011-06-07 Farm tractor, has frame part located in front of driver's post, and sliding beam set with respect to central beam, where front portion of sliding beam is hinged and articulated around axis and bears front wheels and tool holder Pending FR2976155A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR1101732A FR2976155A1 (en) 2011-06-07 2011-06-07 Farm tractor, has frame part located in front of driver's post, and sliding beam set with respect to central beam, where front portion of sliding beam is hinged and articulated around axis and bears front wheels and tool holder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1101732A FR2976155A1 (en) 2011-06-07 2011-06-07 Farm tractor, has frame part located in front of driver's post, and sliding beam set with respect to central beam, where front portion of sliding beam is hinged and articulated around axis and bears front wheels and tool holder

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FR2976155A1 true FR2976155A1 (en) 2012-12-14

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FR1101732A Pending FR2976155A1 (en) 2011-06-07 2011-06-07 Farm tractor, has frame part located in front of driver's post, and sliding beam set with respect to central beam, where front portion of sliding beam is hinged and articulated around axis and bears front wheels and tool holder

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2284265A1 (en) * 1974-09-16 1976-04-09 Agrostroj Jicin Np Self-propelled agricultural machine for sugar-beet culture - has support with vertical pin to which is pivot mounted a bar
US4611683A (en) * 1981-07-23 1986-09-16 Hilmer Elwyn P Farm tractor
US4693331A (en) * 1986-04-23 1987-09-15 Hiniker Company Tractor boom
DE102005037389A1 (en) * 2005-08-08 2007-02-15 Horst Schwab Gmbh Multi-purpose working device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2284265A1 (en) * 1974-09-16 1976-04-09 Agrostroj Jicin Np Self-propelled agricultural machine for sugar-beet culture - has support with vertical pin to which is pivot mounted a bar
US4611683A (en) * 1981-07-23 1986-09-16 Hilmer Elwyn P Farm tractor
US4693331A (en) * 1986-04-23 1987-09-15 Hiniker Company Tractor boom
DE102005037389A1 (en) * 2005-08-08 2007-02-15 Horst Schwab Gmbh Multi-purpose working device

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