FR2854121A1 - High clearance tractor for use in vineyard, has jack, frame, sleeve and beam to vary wheel-base between trains, where each wheel of rear trains is associated to positioning unit which is bound to orientation of front wheel - Google Patents
High clearance tractor for use in vineyard, has jack, frame, sleeve and beam to vary wheel-base between trains, where each wheel of rear trains is associated to positioning unit which is bound to orientation of front wheel Download PDFInfo
- Publication number
- FR2854121A1 FR2854121A1 FR0305111A FR0305111A FR2854121A1 FR 2854121 A1 FR2854121 A1 FR 2854121A1 FR 0305111 A FR0305111 A FR 0305111A FR 0305111 A FR0305111 A FR 0305111A FR 2854121 A1 FR2854121 A1 FR 2854121A1
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- wheel
- wheelbase
- wheels
- chassis
- track
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B35/00—Axle units; Parts thereof ; Arrangements for lubrication of axles
- B60B35/001—Axles of the portal type, i.e. axles designed for higher ground clearance
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B35/00—Axle units; Parts thereof ; Arrangements for lubrication of axles
- B60B35/02—Dead axles, i.e. not transmitting torque
- B60B35/10—Dead axles, i.e. not transmitting torque adjustable for varying track
- B60B35/1036—Dead axles, i.e. not transmitting torque adjustable for varying track operated with power assistance
- B60B35/1054—Dead axles, i.e. not transmitting torque adjustable for varying track operated with power assistance hydraulically
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B35/00—Axle units; Parts thereof ; Arrangements for lubrication of axles
- B60B35/02—Dead axles, i.e. not transmitting torque
- B60B35/10—Dead axles, i.e. not transmitting torque adjustable for varying track
- B60B35/1072—Dead axles, i.e. not transmitting torque adjustable for varying track by transversally movable elements
- B60B35/109—Dead axles, i.e. not transmitting torque adjustable for varying track by transversally movable elements the element is an axle part
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D21/00—Understructures, i.e. chassis frame on which a vehicle body may be mounted
- B62D21/14—Understructures, i.e. chassis frame on which a vehicle body may be mounted of adjustable length or width
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D33/00—Superstructures for load-carrying vehicles
- B62D33/06—Drivers' cabs
- B62D33/063—Drivers' cabs movable from one position into at least one other position, e.g. tiltable, pivotable about a vertical axis, displaceable from one side of the vehicle to the other
- B62D33/0636—Drivers' cabs movable from one position into at least one other position, e.g. tiltable, pivotable about a vertical axis, displaceable from one side of the vehicle to the other displaceable along a linear path
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D49/00—Tractors
- B62D49/06—Tractors adapted for multi-purpose use
- B62D49/0607—Straddle tractors, used for instance above vine stocks, rows of bushes, or the like
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D49/00—Tractors
- B62D49/06—Tractors adapted for multi-purpose use
- B62D49/0678—Tractors of variable track width or wheel base
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D7/00—Steering linkage; Stub axles or their mountings
- B62D7/06—Steering linkage; Stub axles or their mountings for individually-pivoted wheels, e.g. on king-pins
- B62D7/14—Steering linkage; Stub axles or their mountings for individually-pivoted wheels, e.g. on king-pins the pivotal axes being situated in more than one plane transverse to the longitudinal centre line of the vehicle, e.g. all-wheel steering
- B62D7/142—Steering linkage; Stub axles or their mountings for individually-pivoted wheels, e.g. on king-pins the pivotal axes being situated in more than one plane transverse to the longitudinal centre line of the vehicle, e.g. all-wheel steering specially adapted for particular vehicles, e.g. tractors, carts, earth-moving vehicles, trucks
- B62D7/144—Steering linkage; Stub axles or their mountings for individually-pivoted wheels, e.g. on king-pins the pivotal axes being situated in more than one plane transverse to the longitudinal centre line of the vehicle, e.g. all-wheel steering specially adapted for particular vehicles, e.g. tractors, carts, earth-moving vehicles, trucks for vehicles with more than two axles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D7/00—Steering linkage; Stub axles or their mountings
- B62D7/06—Steering linkage; Stub axles or their mountings for individually-pivoted wheels, e.g. on king-pins
- B62D7/14—Steering linkage; Stub axles or their mountings for individually-pivoted wheels, e.g. on king-pins the pivotal axes being situated in more than one plane transverse to the longitudinal centre line of the vehicle, e.g. all-wheel steering
- B62D7/15—Steering linkage; Stub axles or their mountings for individually-pivoted wheels, e.g. on king-pins the pivotal axes being situated in more than one plane transverse to the longitudinal centre line of the vehicle, e.g. all-wheel steering characterised by means varying the ratio between the steering angles of the steered wheels
- B62D7/1554—Steering linkage; Stub axles or their mountings for individually-pivoted wheels, e.g. on king-pins the pivotal axes being situated in more than one plane transverse to the longitudinal centre line of the vehicle, e.g. all-wheel steering characterised by means varying the ratio between the steering angles of the steered wheels comprising a fluid interconnecting system between the steering control means of the different axles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B2360/00—Materials; Physical forms thereof
- B60B2360/14—Physical forms of metallic parts
- B60B2360/144—Tubes, i.e. being hollow
- B60B2360/1444—Tubes, i.e. being hollow of rectangular cross section
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
- B60Y2200/00—Type of vehicle
- B60Y2200/20—Off-Road Vehicles
- B60Y2200/22—Agricultural vehicles
- B60Y2200/221—Tractors
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Body Structure For Vehicles (AREA)
Abstract
Description
La présente invention a pour objet un dispositif deThe present invention relates to a device for
tracteur enjambeur.straddle tractor.
Les tracteurs enjambeurs sont utilisés essentiellement dans les vignes, ils peuvent rouler dans les routes de vignes en 5 enjambant un ou plusieurs rangs de végétation, ce qui leur permet de traiter en un passage plusieurs desdits rangs. Straddle tractors are mainly used in the vineyards, they can roll in the vineyard roads by spanning one or more rows of vegetation, which allows them to treat in one pass several of said rows.
De manière traditionnelle un tracteur porte les outils en porte-à-faux à l'avant ou à l'arrière, éventuellement sur les côtés. Traditionally, a tractor carries the tools overhanging at the front or rear, possibly on the sides.
On connaît également des tracteurs enjambeurs qui portent les outils sous le châssis, entre le train avant et le train arrière. Cette configuration, qui est la plus efficace puisqu'elle est la plus équilibrée, est toutefois limitée au type d'outil à utiliser, et plus particulièrement à la taille de 15 celui-ci. Straddle tractors are also known which carry the tools under the chassis, between the front axle and the rear axle. This configuration, which is the most effective since it is the most balanced, is however limited to the type of tool to be used, and more particularly to the size thereof.
En effet, seuls les outils de petite taille peuvent être adaptés sur les tracteurs enjambeurs actuellement connus. Afin de pouvoir utiliser des outils de plus grande taille, il serait bien entendu possible de concevoir des tracteurs enjambeurs à 20 empattement surdimensionné, mais se serait au détriment de la facilité de maniement hors utilisation de ces outils. Indeed, only small tools can be adapted on currently known straddle tractors. In order to be able to use larger tools, it would of course be possible to design straddle tractors with an oversized wheelbase, but would be to the detriment of the ease of handling when these tools are not used.
Par ailleurs, le positionnement d'un outil sous le châssis entre le train avant et le train arrière, présente parfois des inconvénients, notamment en ce qu'il est difficile au conducteur 25 de surveiller le travail dudit outil. Furthermore, the positioning of a tool under the chassis between the front axle and the rear axle sometimes has drawbacks, in particular in that it is difficult for the driver to monitor the work of said tool.
On connaît déjà des tracteurs classiques et des tracteurs enjambeurs à voie variable tels que ceux décrits dans les documents FR 1.427.919, FR 2. 611.639, US 4.109.747 et FR 2.673.592, ils restent toutefois d'un usage limité. Conventional tractors and variable track straddle tractors such as those described in documents FR 1,427,919, FR 2,611,639, US 4,109,747 and FR 2,673,592 are already known, but they remain of limited use.
On connaît également des tracteurs comportant des moyens permettant de faire varier leur empattement pour par exemple, en le réduisant, faciliter les manoeuvres. Tractors are also known comprising means making it possible to vary their wheelbase, for example, by reducing it, to facilitate maneuvers.
C'est le cas par exemple du tracteur décrit dans le document FR 2.157.172, o une roue avant directrice est portée 35 par une poutre montée pivotante autour d'un vertical, en sorte de pouvoir rapprocher ladite roue avant directrice des roues arrière motrices. This is the case, for example, of the tractor described in document FR 2,157,172, where a steerable front wheel is carried by a beam mounted to pivot about a vertical, so that said steerable front wheel can be brought closer to the rear drive wheels. .
C'est également le cas du véhicule décrit dans le document WO 98/38958, dont le châssis est constitué de deux poutres se 5 croisant et articulées l'une à l'autre, et qui portent une roue à chacune de leur extrémité, la variation de l'angle que font entre elles les poutres, permettant de faire varier l'empattement. This is also the case of the vehicle described in document WO 98/38958, the chassis of which consists of two beams crossing each other and articulated to each other, and which carry a wheel at each of their ends, the variation of the angle between the beams, allowing the wheelbase to be varied.
On connaît également des véhicules dont les roues sont 10 portées par des bras pivotants permettant de rapprocher ou d'éloigner les roues les unes des autres, c'est par exemple le cas du véhicule décrit dans le document BE 1.009.973. Vehicles are also known, the wheels of which are carried by pivoting arms enabling the wheels to be brought closer or further apart from each other, this is for example the case of the vehicle described in document BE 1,009,973.
L'inconvénient de tous ces véhicules réside en ce que la variation de l'empattement implique systématiquement une 15 variation de la voie avant et/ou arrière, ce qui est incompatible avec une utilisation dans les vignes. The disadvantage of all these vehicles is that the variation in the wheelbase systematically involves a variation in the front and / or rear track, which is incompatible with use in the vineyards.
La présente invention a pour but de proposer un dispositif de tracteur enjambeur permettant de remédier aux divers inconvénients précités. The object of the present invention is to propose a straddle tractor device which makes it possible to remedy the various aforementioned drawbacks.
Le dispositif de tracteur enjambeur objet de la présente invention se caractérise essentiellement en ce qu'il comporte des moyens permettant de faire varier l'empattement entre un train avant comportant une roue, et un ou deux trains arrière de deux roues, pour une voie donnée du ou desdits trains arrière. The straddle tractor device which is the subject of the present invention is essentially characterized in that it comprises means making it possible to vary the wheelbase between a front axle comprising a wheel, and one or two rear axle assemblies of two wheels, for a given track of said rear axle (s).
Selon un mode de réalisation particulier du dispositif tracteur enjambeur selon l'invention, il comporte un châssis comprenant essentiellement deux poutres longitudinales parallèles auxquelles sont solidarisés le ou les trains arrière, et sur lesquelles peut coulisser le train avant. According to a particular embodiment of the straddle tractor device according to the invention, it comprises a chassis essentially comprising two parallel longitudinal beams to which the rear axle (s) are secured, and on which the front axle can slide.
Selon une caractéristique additionnelle du dispositif tracteur enjambeur selon l'invention, il comporte des moyens permettant de faire varier la voie des roues arrière indépendamment de la variation de l'empattement. According to an additional characteristic of the straddle tractor device according to the invention, it comprises means making it possible to vary the track of the rear wheels independently of the variation in the wheelbase.
Selon mode de réalisation particulier du dispositif de 35 tracteur enjambeur selon l'invention, un train arrière comprend deux poutres transversales parallèles, à l'extrémité de chacune desquelles est solidarisée une roue, et qui sont aptes à être déplacées en coulissement, indépendamment l'une de l'autre en sorte d'éloigner ou de rapprocher du châssis central la roue que chacune d'elles porte. According to a particular embodiment of the straddle tractor device according to the invention, a rear axle comprises two parallel transverse beams, at the end of each of which is secured a wheel, and which are capable of being displaced in sliding, independently of the one of the other so as to distance or bring closer to the central chassis the wheel that each of them carries.
Selon une autre caractéristique additionnelle du dispositif tracteur enjambeur selon l'invention, les roues avant et arrière sont motrices et directrices, chacune des roues arrière étant associée à un moyen de positionnement en pivotement apte à être asservi à l'orientation de la roue avant, à la longueur de 10 l'empattement et à la largeur de la voie. According to another additional characteristic of the straddle tractor device according to the invention, the front and rear wheels are driving and steering, each of the rear wheels being associated with a pivoting positioning means capable of being slaved to the orientation of the front wheel, the length of the wheelbase and the width of the track.
Selon un mode de réalisation particulier du dispositif de tracteur enjambeur selon l'invention, le moyen de positionnement en pivotement d'une roue arrière asservi à l'orientation de la roue avant et à la longueur de l'empattement et à la largeur de 15 la voie, consiste en des moyens aptes à faire pivoter ladite roue arrière commandés par un calculateur enregistrant, par l'intermédiaire de capteurs, la position angulaire de la roue avant et les dimensions de la voie arrière et de l'empattement. According to a particular embodiment of the straddle tractor device according to the invention, the means for pivoting positioning of a rear wheel subject to the orientation of the front wheel and to the length of the wheelbase and to the width of 15 the track consists of means capable of rotating said rear wheel controlled by a computer recording, via sensors, the angular position of the front wheel and the dimensions of the rear track and the wheelbase.
De manière avantageuse, les moyens aptes à faire pivoter 20 les roues arrière consistent en des vérins reliant le châssis à des platines montées pivotantes sur le châssis et portant chacune une roue. Advantageously, the means able to pivot the rear wheels consist of jacks connecting the chassis to plates pivotally mounted on the chassis and each carrying a wheel.
Selon une autre caractéristique additionnelle du dispositif tracteur enjambeur selon l'invention, il comporte des moyens 25 aptes à permettre le déplacement d'une cabine de pilotage par rapport aux roues arrière indépendamment de la variation de l'empattement. According to another additional characteristic of the straddle tractor device according to the invention, it comprises means 25 capable of allowing the displacement of a cockpit relative to the rear wheels independently of the variation in the wheelbase.
Un dispositif de tracteur enjambeur selon l'invention permet l'adaptation sous le châssis entre les roues avant et 30 arrière de tous les outils de traitement actuellement connus, avec possibilité de surveiller aisément le travail réalisé par lesdits outils. A straddle tractor device according to the invention allows adaptation under the chassis between the front and rear wheels of all the currently known processing tools, with the possibility of easily monitoring the work carried out by said tools.
D'autre part, l'asservissement du positionnement en pivotement de chacune des roues arrière autorise une parfaite 35 maîtrise de la direction du dispositif de tracteur enjambeur selon l'invention, ce qui en facilite le maniement notamment dans les vignes. On the other hand, the enslavement of the pivoting positioning of each of the rear wheels allows perfect control of the direction of the straddle tractor device according to the invention, which facilitates handling in particular in the vineyards.
On notera que par ailleurs, de manière avantageuse, chacune des roues avant et arrière est reliée au châssis par 5 l'intermédiaire de vérins indépendants afin de permettre un contrôle de la garde au sol. It will be noted that, moreover, advantageously, each of the front and rear wheels is connected to the chassis by means of independent jacks in order to allow control of the ground clearance.
Les avantages et les caractéristiques du dispositif selon l'invention, ressortiront plus clairement de la description qui suit et qui se rapporte au dessin annexé, lequel en représente 10 un mode de réalisation non limitatif. The advantages and characteristics of the device according to the invention will emerge more clearly from the description which follows and which refers to the appended drawing, which represents a non-limiting embodiment thereof.
Dans le dessin annexé : - la figure 1 représente une vue schématique partielle de côté d'un dispositif de tracteur enjambeur selon l'invention. In the accompanying drawing: - Figure 1 shows a partial schematic side view of a straddle tractor device according to the invention.
- la figure 2 représente une vue schématique partielle de 15 dessus du même dispositif. - Figure 2 shows a partial schematic view from above of the same device.
- la figure 3 représente une vue schématique partielle de face du même dispositif. - Figure 3 shows a partial schematic front view of the same device.
- la figure 4 représente une vue schématique d'une partie du même dispositif. - Figure 4 shows a schematic view of part of the same device.
- les figures 5a, 5b et 5c représentent des vues schématiques du positionnement des roues lors d'un changement de direction selon la configuration du dispositif selon l'invention. - Figures 5a, 5b and 5c show schematic views of the positioning of the wheels when changing direction according to the configuration of the device according to the invention.
En référence aux figures 1, 2 et 3, on peut voir qu'un 25 dispositif de tracteur enjambeur selon l'invention repose sur cinq roues, réparties en un train avant 1 comprenant une roue avant 10, et deux trains arrière 2 et 3 de deux roues, respectivement 20 et 21, et 30 et 31. With reference to FIGS. 1, 2 and 3, it can be seen that a straddle tractor device according to the invention rests on five wheels, distributed in a front axle 1 comprising a front wheel 10, and two rear axles 2 and 3 of two wheels, respectively 20 and 21, and 30 and 31.
Les roues 10, 20, 21, 30 et 31 sont motrices par 30 l'intermédiaire de moteurs hydrauliques respectivement 11, 22, 23, 32 et 33, et directrices par l'intermédiaire de systèmes qui seront décrits plus loin. The wheels 10, 20, 21, 30 and 31 are driven by hydraulic motors 11, 22, 23, 32 and 33, respectively, and steered by systems which will be described later.
Le dispositif de tracteur enjambeur selon l'invention comporte un châssis 4 comprenant essentiellement un cadre 40 et 35 deux poutres longitudinales 41, ainsi que deux ensembles mobiles 42 et 43 constitués chacun de deux poutres parallèles 44 reliées par une poutre transversale 45. The straddle tractor device according to the invention comprises a chassis 4 essentially comprising a frame 40 and 35 two longitudinal beams 41, as well as two movable assemblies 42 and 43 each consisting of two parallel beams 44 connected by a transverse beam 45.
Les deux ensembles 42 et 43 peuvent coulisser sur le cadre et les deux poutres longitudinales 41, perpendiculairement à 5 ces dernières, par l'intermédiaire de leurs poutres parallèles 44, en sorte que les poutres transversales 45 de chacun des ensembles 42 et 43 puissent, sous l'action de vérins 46 équipant chacune des poutres 44, s'éloigner ou se rapprocher l'une de l'autre et par là même du cadre 40 et les deux poutres 41. Les 10 poutres 45 des ensembles 42 et 43, portant respectivement les roues 20 et 30, et 21 et 31, on comprendra que l'actionnement des vérins 46 permet de faire varier la voie arrière du dispositif de tracteur-enjambeur selon l'invention. The two sets 42 and 43 can slide on the frame and the two longitudinal beams 41, perpendicular to the latter 5, by means of their parallel beams 44, so that the transverse beams 45 of each of the sets 42 and 43 can, under the action of jacks 46 fitted to each of the beams 44, move away from or approach one of the other and thereby the frame 40 and the two beams 41. The 10 beams 45 of the sets 42 and 43, bearing the wheels 20 and 30 and 21 and 31 respectively, it will be understood that the actuation of the jacks 46 makes it possible to vary the rear track of the tractor-straddle device according to the invention.
On comprendra également que le fait de faire coulisser les 15 poutres 44 sur le cadre 40 permet non seulement de faire varier la voie, mais également de réduire la largeur hors-tout de l'ensemble du dispositif de tracteur selon l'invention, permettant ainsi de réduire l'encombrement de celui-ci. It will also be understood that the fact of sliding the beams 44 on the frame 40 not only makes it possible to vary the track, but also to reduce the overall width of the entire tractor device according to the invention, thus allowing to reduce the size thereof.
D'autre part, le train avant 1 est monté mobile en 20 coulissement sur, le cadre 40 et les poutres longitudinales 41 sous l'action d'un vérin 12, ce qui permet de faire varier l'empattement entre les trains avant 1 et arrière 2 indépendamment de la largeur de la voie arrière. On the other hand, the front axle 1 is movably mounted to slide on, the frame 40 and the longitudinal beams 41 under the action of a jack 12, which makes it possible to vary the wheelbase between the front axle 1 and rear 2 regardless of the width of the rear track.
Le train avant 1 comporte ainsi un bâti 13 monté 25 coulissant, par l'intermédiaire de manchons 14, sur les poutres 41, et guidé par l'intermédiaire de coulisses 15 qui lui sont solidarisées par l'intermédiaire d'oreilles 16, et qui sont aptes à glisser sur des poutrelles longitudinales 47 du cadre 4, sur les côtés internes de celles-ci. The front axle 1 thus comprises a frame 13 mounted 25 sliding, by means of sleeves 14, on the beams 41, and guided by means of slides 15 which are secured to it by means of ears 16, and which are able to slide on longitudinal beams 47 of the frame 4, on the internal sides thereof.
On notera que la figure 4 représente un détail du train avant 1, en l'occurrence on peut y voir une partie d'une poutrelle 47 et une coulisse 15 et, partiellement, une oreille 16. It will be noted that FIG. 4 represents a detail of the front axle 1, in this case one can see a part of a beam 47 and a slide 15 and, partially, an ear 16.
Le châssis 4 porte également, inférieurement un berceau 17 35 apte à porter un ensemble de motorisation, non représenté, et supérieurement une cabine de pilotage 5, laquelle est montée coulissante dans le sens longitudinal sur le cadre 4, et plus exactement sur deux poutrelles 47 de celui-ci, sous l'action d'un vérin 50. The chassis 4 also carries, below a cradle 17 35 capable of carrying a motorization assembly, not shown, and above a cockpit 5, which is slidably mounted in the longitudinal direction on the frame 4, and more exactly on two beams 47 of the latter, under the action of a jack 50.
On peut ainsi voir sur la figure 4 un détail du système de 5 maintien et de coulissement de la cabine de pilotage 5, en l'occurrence une extrémité d'une traverse 51 supportant la cabine 5 et apte à glisser sur une poutrelle 47 par l'intermédiaire d'un patin 52, et munie d'un moyen 53 de maintien et de guidage, qui enveloppe la poutrelle 47 du côté 10 externe de celle-ci, laquelle est ainsi prise entre ce moyen 53 de maintien et de guidage et la coulisse 16. We can thus see in Figure 4 a detail of the system 5 for holding and sliding the cockpit 5, in this case one end of a cross member 51 supporting the cabin 5 and capable of sliding on a beam 47 by l intermediate of a shoe 52, and provided with a means 53 for holding and guiding, which envelops the beam 47 on the external side thereof, which is thus caught between this means 53 for holding and guiding and the slide 16.
Le dispositif de tracteur enjambeur selon l'invention permet donc de disposer un outil sous son châssis 4, en arrière de la roue avant 10, quelle que soit la taille dudit outil, ou 15 plus exactement en adaptant les dimensions du tracteur enjambeur à celles de cet outil, ce qui permet des conditions de travail optimales. The straddle tractor device according to the invention therefore makes it possible to have a tool under its chassis 4, behind the front wheel 10, whatever the size of said tool, or more precisely by adapting the dimensions of the straddle tractor to those of this tool, which allows optimal working conditions.
La possibilité de déplacer la cabine de pilotage 5 sur le châssis 4, ce qui est réalisable indépendamment des dimensions 20 de l'empattement alors que celui-ci est fixé en fonction des caractéristiques dimensionnelles de l'outil de travail, permet au conducteur de se positionner de façon idéale afin de surveiller l'exécution du travail. Il est d'ailleurs parfaitement possible au conducteur de déplacer la cabine de 25 pilotage 5 en cours d'utilisation du dispositif de tracteur enjambeur selon l'invention, afin de changer de position d'observation. The possibility of moving the cockpit 5 on the chassis 4, which is possible independently of the dimensions 20 of the wheelbase while the latter is fixed as a function of the dimensional characteristics of the working tool, allows the driver to ideally positioned to monitor the execution of the work. It is moreover perfectly possible for the driver to move the cockpit 5 during use of the straddle tractor device according to the invention, in order to change the observation position.
La variation de l'empattement et/ou de la voie arrière pose le problème du changement de direction. En effet, pour un angle 30 de braquage donné de la roue avant, le rayon de braquage de celle-ci et celui des roues arrière varient selon la longueur de l'empattement et la largeur de la voie, le dispositif de tracteur enjambeur selon l'invention est équipé d'un système permettant d'aboutir à ce résultat comme cela apparaît sur les 35 figures 5a, 5b et 5c. The variation in the wheelbase and / or the rear track poses the problem of change of direction. Indeed, for a given turning angle 30 of the front wheel, the turning radius of the latter and that of the rear wheels vary according to the length of the wheelbase and the width of the track, the straddle tractor device according to the The invention is equipped with a system for achieving this result as shown in Figures 5a, 5b and 5c.
On peut ainsi voir sur la figure 5a le cas d'un empattement élargi maximum et d'une voie réduite, sur la figure 5b, le cas d'un empattement et d'une voie élargis, et sur la figure 5c, le cas d'un empattement et d'une voie réduits. We can thus see in Figure 5a the case of a maximum widened wheelbase and a reduced track, in Figure 5b, the case of a widened wheelbase and a track, and in Figure 5c, the case of '' a reduced wheelbase and track.
Sur le dispositif de tracteur enjambeur selon l'invention chacune des roues arrière 20, 21, 30 et 31, est équipée d'un moyen permettant d'en faire varier de manière indépendante l'angle de braquage, et qui consiste en un vérin respectivement 24, 25, 34 et 35, visibles sur les figures 1 et 2, solidarisé 10 entre une poutre 45 et une platine, respectivement 26, 27, 36 et 37, visibles sur les figures 1 et 3, montée en pivotement sur cette dernière et portant la roue, respectivement 20, 21, 30 et 31, tandis qu'un calculateur, non représenté, recueille des données concernant l'angle de braquage de la roue avant 10 et, 15 par l'intermédiaire de capteurs de positionnement, non représentés, la longueur de l'empattement et la largeur de la voie, afin de commander le fonctionnement de chacun des vérins 24, 25, 34 et 35. On the straddle tractor device according to the invention, each of the rear wheels 20, 21, 30 and 31 is equipped with means making it possible to vary the steering angle thereof independently, and which consists of a cylinder respectively. 24, 25, 34 and 35, visible in Figures 1 and 2, joined 10 between a beam 45 and a plate, respectively 26, 27, 36 and 37, visible in Figures 1 and 3, pivotally mounted on the latter and carrying the wheel, respectively 20, 21, 30 and 31, while a computer, not shown, collects data concerning the steering angle of the front wheel 10 and, via positioning sensors, not shown , the length of the wheelbase and the width of the track, in order to control the operation of each of the jacks 24, 25, 34 and 35.
De manière avantageuse, les vérins 24, 25, 34 et 35 peuvent 20 être utilisés à d'autres fins, ainsi, par exemple, lors d'un déplacement en dévers, alors que la roue avant 10 est relativement alignée, il est possible de réaliser un léger braquage des roues arrière 20, 21, 30 et 31, toutes dans le même sens vers le haut de la pente, afin de compenser un éventuel 25 glissement de l'arrière. Advantageously, the jacks 24, 25, 34 and 35 can be used for other purposes, thus, for example, when traveling on a slope, while the front wheel 10 is relatively aligned, it is possible to slightly turn the rear wheels 20, 21, 30 and 31, all in the same direction towards the top of the slope, in order to compensate for any slippage in the rear.
D'autre part, on notera que les liaisons entre les roues 10, 20, 21, 30 et 31, et plus particulièrement entre les blocs moteurs 22, 23, 32 et 33 de celles-ci et respectivement le bâti 13 du train avant 1 et les poutres 45 des ensembles mobiles 42 30 et 43, sont réalisées par l'intermédiaire uniquement de vérins, indépendants mais aptes à être activés de manière organisée, ce qui autorise à modifier la garde au sol, et, éventuellement lors d'un déplacement en dévers, que le châssis 4 conserve une certaine horizontalité. On the other hand, it will be noted that the connections between the wheels 10, 20, 21, 30 and 31, and more particularly between the engine blocks 22, 23, 32 and 33 thereof and respectively the frame 13 of the front axle 1 and the beams 45 of the mobile assemblies 42 30 and 43, are produced by means of jacks only, independent but capable of being activated in an organized manner, which allows the ground clearance to be modified, and, possibly during a movement on a slope, the chassis 4 retains a certain horizontality.
Claims (9)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0305111A FR2854121B1 (en) | 2003-04-25 | 2003-04-25 | TRAPPER DEVICE STACKER |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0305111A FR2854121B1 (en) | 2003-04-25 | 2003-04-25 | TRAPPER DEVICE STACKER |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2854121A1 true FR2854121A1 (en) | 2004-10-29 |
| FR2854121B1 FR2854121B1 (en) | 2006-04-21 |
Family
ID=33104405
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR0305111A Expired - Fee Related FR2854121B1 (en) | 2003-04-25 | 2003-04-25 | TRAPPER DEVICE STACKER |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR2854121B1 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090038186A1 (en) * | 2007-08-06 | 2009-02-12 | Extendquip, Llc | Extendable frame work vehicle |
| CN102642791A (en) * | 2012-05-02 | 2012-08-22 | 厦门市嘉盛工程机械有限公司 | Balance sliding device of block material loader |
| WO2015090618A2 (en) | 2013-12-20 | 2015-06-25 | Multitooltrac Bv | Dynamically variable track width and electrically driven work in sight tractor and method of gps steering |
| FR3026713A1 (en) * | 2014-10-01 | 2016-04-08 | Renault Sa | COMMON STRUCTURE FOR MANUFACTURING A PLURALITY OF MODELS OF DIFFERENT WIDTHS OF A VEHICLE |
| CN105774405A (en) * | 2016-04-30 | 2016-07-20 | 富锦市立兴植保机械制造有限公司 | Special mechanical transmission telescopic door type axle of high-ground-clearance machinery |
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| US3899037A (en) * | 1973-07-16 | 1975-08-12 | Paul A Yuker | Chassis apparatus for all terrain vehicles |
| FR2700915A1 (en) * | 1993-02-02 | 1994-08-05 | Jacquet Sa | Straddle tractor with underslung implement |
| US6199769B1 (en) * | 2000-02-02 | 2001-03-13 | Equipment Technologies, Inc. | Apparatus and method for operating an adjustable-width axle assembly of a crop sprayer |
| FR2823174A1 (en) * | 2001-04-06 | 2002-10-11 | Pascal Oury | Straddle tractor for vine work comprises chassis supporting rear wheel and straddle unit and has lateral beam carrying offset arm at front end supporting steering wheel offset toward working plane |
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2003
- 2003-04-25 FR FR0305111A patent/FR2854121B1/en not_active Expired - Fee Related
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3899037A (en) * | 1973-07-16 | 1975-08-12 | Paul A Yuker | Chassis apparatus for all terrain vehicles |
| FR2700915A1 (en) * | 1993-02-02 | 1994-08-05 | Jacquet Sa | Straddle tractor with underslung implement |
| US6199769B1 (en) * | 2000-02-02 | 2001-03-13 | Equipment Technologies, Inc. | Apparatus and method for operating an adjustable-width axle assembly of a crop sprayer |
| FR2823174A1 (en) * | 2001-04-06 | 2002-10-11 | Pascal Oury | Straddle tractor for vine work comprises chassis supporting rear wheel and straddle unit and has lateral beam carrying offset arm at front end supporting steering wheel offset toward working plane |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090038186A1 (en) * | 2007-08-06 | 2009-02-12 | Extendquip, Llc | Extendable frame work vehicle |
| EP2185381A1 (en) * | 2007-08-06 | 2010-05-19 | Extendquip, Llc | Extendable frame work vehicle |
| EP2185381A4 (en) * | 2007-08-06 | 2011-04-06 | Extendquip Llc | Extendable frame work vehicle |
| CN101808849B (en) * | 2007-08-06 | 2012-10-03 | 伊克斯坦德奎普有限公司 | Extendable frame work vehicle |
| US8602153B2 (en) | 2007-08-06 | 2013-12-10 | Extendquip Llc | Extendable frame work vehicle |
| CN102642791A (en) * | 2012-05-02 | 2012-08-22 | 厦门市嘉盛工程机械有限公司 | Balance sliding device of block material loader |
| WO2015090618A2 (en) | 2013-12-20 | 2015-06-25 | Multitooltrac Bv | Dynamically variable track width and electrically driven work in sight tractor and method of gps steering |
| NL1040560C2 (en) * | 2013-12-20 | 2015-06-30 | Multitooltrac B V | Dynamically variable track width and electrically driven work in sight tractor and method of steering. |
| WO2015090618A3 (en) * | 2013-12-20 | 2015-09-11 | Multitooltrac Bv | Dynamically variable track width and electrically driven work in sight tractor and method of gps steering |
| FR3026713A1 (en) * | 2014-10-01 | 2016-04-08 | Renault Sa | COMMON STRUCTURE FOR MANUFACTURING A PLURALITY OF MODELS OF DIFFERENT WIDTHS OF A VEHICLE |
| CN105774405A (en) * | 2016-04-30 | 2016-07-20 | 富锦市立兴植保机械制造有限公司 | Special mechanical transmission telescopic door type axle of high-ground-clearance machinery |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2854121B1 (en) | 2006-04-21 |
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