EP1585699B1 - Material handling vehicle - Google Patents

Material handling vehicle Download PDF

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Publication number
EP1585699B1
EP1585699B1 EP03813633A EP03813633A EP1585699B1 EP 1585699 B1 EP1585699 B1 EP 1585699B1 EP 03813633 A EP03813633 A EP 03813633A EP 03813633 A EP03813633 A EP 03813633A EP 1585699 B1 EP1585699 B1 EP 1585699B1
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EP
European Patent Office
Prior art keywords
vehicle
telescopic arm
wheels
vehicle according
seat
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EP03813633A
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German (de)
French (fr)
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EP1585699A1 (en
Inventor
Stéphane BERNIGAUD
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Modules Associes
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Modules Associes
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66FHOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F9/00Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
    • B66F9/06Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks
    • B66F9/065Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks non-masted
    • B66F9/0655Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks non-masted with a telescopic boom
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02FDREDGING; SOIL-SHIFTING
    • E02F3/00Dredgers; Soil-shifting machines
    • E02F3/04Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/28Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
    • E02F3/283Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets with a single arm pivoted directly on the chassis
    • E02F3/286Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets with a single arm pivoted directly on the chassis telescopic or slidable

Definitions

  • the present invention relates to a load handling vehicle, hereinafter referred to as a "specified type of vehicle", which comprises a structure having a load transporting device at a front end of the vehicle, a lifting device for lifting the device for transporting loads, a power unit for generating the power required for the load transport device and the propulsion device, a propulsion device comprising a pair of large front wheels and ground contact placed at because of one on each side of the vehicle and a pair of small rear wheels intended to be in contact with the ground and each placed on one side of the vehicle, a seat for the operator.
  • the realization of the material handling vehicle of the specified type comprises a telescopic beam pivotally mounted on the supporting structure in a rear end region of the beam, upwards or downwards under the action of the motor device in a plane extending in the front-rear direction of the vehicle, the arm having a load carrying accessory, in its front end region, the front wheels of contact with the ground, large dimensions being driven by the engine power unit and the rear ground contact wheels being steered, the load lifting device being arranged substantially in the median axis of the vehicle, the seat being offset on one side of this central axis, the group motor power being installed on the other side of this median axis.
  • Rear ground contact wheels may not be driven by the engine power unit.
  • the axis of the crankshaft of the engine is substantially perpendicular to the median plane x-x 'front-rear of the vehicle and placed as far back as possible, in front of rear wheels.
  • the telescopic arm can be installed along the seat, above the engine power group and in the down position on the inside of a front wheel, and the load lifting device in the center line of the vehicle. .
  • the driver's seat may be shifted 450 mm from the center line, partially covering the load lifting device located in this axis.
  • the telescopic arm being offset by about 150 mm on the other side of the central axis and allowing the passage of the arm next to a front wheel.
  • the vehicle preferably has a width of less than 1800 mm.
  • the engine power group may cause the wheels by a hydraulic device.
  • the pivot axis of the arm can occupy a position behind the axis of rotation of the rear wheels.
  • the present embodiment makes it possible to achieve the aforementioned object by producing a machine with small dimensions whose width may be less than 1800 mm, the length of less than 2600 mm and a height of less than 2300 mm.
  • This result is obtained by the arrangement of the load lifting device in the central axis, the telescopic arm interposed between the driver's seat and the opposite front wheel, the engine power unit installed perpendicular to the axis of the vehicle and partially under the arrow.
  • Such a vehicle is relatively narrow, has large front wheels while visibility to the front of the driver is not superfluously reduced by elements of the vehicle.
  • FIGS 1 to 5 show a load vehicle type of a telescopic forklift, generally 1.
  • the vehicle 1 has a front end 11 and an end Rear 12.
  • Two large ground front wheels 13 are placed in the front end region and are opposite in the width direction of the vehicle so that they are each on one side of the vehicle.
  • Two rear ground contact wheels 14 are placed in a rear end region of the vehicle and are also spaced along the width of the vehicle so that they are each on one side of the vehicle.
  • the rear wheels 14 are mounted on a conventional suspension axle 16 and are not driven by the engine. They are directed via a steering cylinder 17 of conventional installation.
  • the front wheels 13 are driven by a set of reducers 18 and hydraulic motors 19 of conventional design. This assembly could be replaced by a bridge driven by a hydraulic motor.
  • a seat 20 is offset from the median plane x-x 'of the vehicle in the opposite direction to the arm 30 and the power group 60 defined below.
  • An operator seat 20 may be disposed within an operator compartment 21, in which a steering wheel 22 and conventional pedal and joystick controls of the vehicle are placed.
  • This compartment 21 cabin type has several openings that can be glazed or not.
  • An access door may or may not be fitted in this compartment.
  • This assembly can be linked to the supporting structure by elastic suspensions.
  • the load lifting device comprises a single telescopic arm 30 pivotally mounted on the structure 50 in a rear region 12 of the arm so that it has a vertical pivoting movement under the control of the load lifting device in a plane which extends in the front-rear direction of the vehicle, parallel to the central plane xx 'of the vehicle and offset from this plane in the direction of the width.
  • the arm 30 is articulated on the structure 50 about a horizontal axis 62, also located in the rear region 12 of the structure 50.
  • the telescopic arm 30 is composed at its front end 31 of a load accessory support 32 hinged about the axis 33 integral with the telescopic arm.
  • the rotation of the accessory support is ensured by a tilt cylinder 34 placed substantially in the median axis x-x 'of the vehicle and fixed on the accessory support by the articulation 35, and the telescopic arm by the articulation 36.
  • the telescopic arm 30 is pivoted upwards and downwards by a lift cylinder 37 connected at 38 by an axis to the telescopic arm 30 and by an axis 39 to the structure 50.
  • This position of the telescopic arm 30 allows the installation of large front wheels 13.
  • the load lifting device (tilt cylinder 34 and lifting cylinder 37) is completed by a compensation cylinder 40 fixed on the arm 30 by the articulation 41 and on the structure 50 by the articulation 42.
  • This jack 40 connected to the tilt cylinder 34 by hydraulic pipes and by a suitable definition angularly maintains the accessory support relative to the horizontal during the lifting function.
  • the compensation function installed is of the classic type.
  • This compensation cylinder 40 is installed in the plane of the lift cylinder 37.
  • the three jacks of the load lifting device namely the tilt, tilt and compensating jacks 34, are located substantially in the center plane xx 'of the machine.
  • the engine power group 60 is installed on the opposite to the seat of the driver, and partly under the arm 30, its crankshaft axis 61 being disposed substantially perpendicular to the median axis x-x '.
  • This group of engine power 60 can have as energy source fuel, but also the gas (natural or propane) or electricity delivered by batteries.
  • This group of engine power is arranged transversely allowing a natural accessibility of the engine 60 and the hydraulic members 70 and 75 located under the structure 50 and the cabin 21.
  • the supporting structure 50 comprises a central beam 51 reconstituted by assembling welded sheets 52 and forming a closed section 53 of great torsional inertia, and ensuring good maintenance of the load when the latter is lifted.
  • the section of the central beam is substantially square.
  • the power motor 60 is connected to the front wheels 13 by a hydraulic transmission comprising a pump 70, one or more hydraulic motors 18, various sensors and actuators, all managed by an electronic assembly.
  • This hydraulic transmission will come from a manufacturer of this type of components.
  • Hydraulic distributors controlled from the control station 21 will distribute the power delivered by the pump 75 on the selected cylinders. This transmission will be carried out using trade components.
  • the noise sources (radiator suction 91, air filter, exhaust 90), will be installed on the opposite side to the cabin.
  • Figure 7 describes a variant of the previous vehicle and consists in making the rear wheels drive and steering.
  • the hydraulic transmission of the power of the engine 60 to the rear wheels 14 will be via hydraulic motors 72 and 73 gearboxes installed on the pivoting portion of the wheels 14. This hydraulic transmission will take up some of the components of the translation of the front wheels 13.

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  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Transportation (AREA)
  • Geology (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Forklifts And Lifting Vehicles (AREA)
  • Body Structure For Vehicles (AREA)
  • Control And Other Processes For Unpacking Of Materials (AREA)
  • Vehicle Step Arrangements And Article Storage (AREA)
  • Medicines Containing Plant Substances (AREA)
  • General Details Of Gearings (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)

Abstract

The truck has a single lengthwise telescopic arm (30) mounted on the rear end of a supporting structure (50) so it can be pivoted on a vertical direction with the aid of power cylinders (34, 37, 40) and has its forward end fitted with load-handling equipment. The supporting structure comprises a vehicle with large-diameter front wheels (13) driven by its engine (60), and smaller diameter steerable rear wheels (14). The power cylinders are located in line with the vehicle's lengthwise median axis, and a control cab (21) with a seat (20) is located on the opposite side to the engine.

Description

La présente invention concerne un véhicule de manutention de charges, appelé dans la suite « véhicule de type spécifié », qui comprend une structure possédant un dispositif de transport de charges placé à une extrémité avant du véhicule, un dispositif de relevage destiné à soulever le dispositif de transport de charges, un groupe de puissance moteur destiné à produire la puissance nécessaire au dispositif de transport de charges et au dispositif de propulsion, un dispositif de propulsion comprenant une paire de roues avant de grandes dimensions et de contact avec le sol, placées à raison d'une de chaque côté du véhicule et une paire de roues arrières de petites dimensions destinées à être en contact avec le sol et placées chacune d'un côté du véhicule, un siège pour l'opérateur.The present invention relates to a load handling vehicle, hereinafter referred to as a "specified type of vehicle", which comprises a structure having a load transporting device at a front end of the vehicle, a lifting device for lifting the device for transporting loads, a power unit for generating the power required for the load transport device and the propulsion device, a propulsion device comprising a pair of large front wheels and ground contact placed at because of one on each side of the vehicle and a pair of small rear wheels intended to be in contact with the ground and each placed on one side of the vehicle, a seat for the operator.

Un tel véhicule est connu du document EP-A-0 987 213.Such a vehicle is known from EP-A-0 987 213.

L'invention concerne en particulier un véhicule du type spécifié qui convient à la manutention de charges industrielles, habituellement dans les entrepôts ou dans d'autres situations dans lesquelles le véhicule risque de disposer d'un espace limité de manoeuvre. Jusqu'à présent, on trouve deux types de véhicules :

  • un tel véhicule comprenant un dispositif de mât vertical, placé à l'avant du véhicule et devant le siège conducteur, et un accessoire de manutention. Dans de tels véhicules, la visibilité du conducteur vers l'avant est réduite par la structure du mât vertical et ce mât en position repliée occupe une hauteur considérable et peut interdire l'accès des entrepôts ayant des accès peu dégagés en hauteur.
  • un tel véhicule comprenant un bras télescopique situé sur le côté de la machine et avant un dispositif de transport de charges sur son extrémité avant. Ce dispositif comprend un bras télescopique situé au-dessus d'une roue avant: Dans de tels véhicules; les roues avant sont de petites tailles entraînant une pression importante au niveau du contact des roues avant avec le sol et un manque de motricité en terrain difficile. L'invention a donc pour objet la réalisation d'un véhicule de manutention de matériaux ne présentant pas les inconvénients précités ou au moins en réduisant l'acuité.
In particular, the invention relates to a vehicle of the specified type suitable for the handling of industrial loads, usually in warehouses or other situations in which the vehicle may have limited maneuvering space. So far, there are two types of vehicles:
  • such a vehicle comprising a vertical mast device, placed at the front of the vehicle and in front of the driver's seat, and a handling accessory. In such vehicles, the forward visibility of the driver is reduced by the structure of the vertical mast and the mast in the folded position occupies a considerable height and can prohibit access to warehouses with access to little height clearance.
  • such a vehicle comprising a telescopic arm located on the side of the machine and before a load transport device on its front end. This device comprises a telescopic arm located above a front wheel: In such vehicles; the front wheels are small in size causing significant pressure at the front wheel contact with the ground and a lack of traction in difficult terrain. The invention therefore has object the realization of a material handling vehicle does not have the aforementioned drawbacks or at least reducing acuity.

Dans un premier aspect la réalisation du véhicule de manutention de matériaux du type spécifié comporte une poutre télescopique montée de manière pivotante sur la structure porteuse dans une région d'extrémité arrière de la poutre, vers le haut ou vers le bas sous l'action du dispositif moteur dans un plan qui s'étend dans la direction avant-arrière du véhicule, le bras ayant un accessoire de transport de charges, dans sa région d'extrémité avant, les roues avant de contact avec le sol, de grandes dimensions étant entraînées par le groupe de puissance moteur et les roues arrières de contact avec le sol étant directrices, le dispositif de relevage de charges étant disposé sensiblement dans l'axe médian du véhicule, le siège étant décalé d'un côté de cet axe médian, le groupe de puissance moteur étant installé de l'autre côté de cet axe médian.In a first aspect the realization of the material handling vehicle of the specified type comprises a telescopic beam pivotally mounted on the supporting structure in a rear end region of the beam, upwards or downwards under the action of the motor device in a plane extending in the front-rear direction of the vehicle, the arm having a load carrying accessory, in its front end region, the front wheels of contact with the ground, large dimensions being driven by the engine power unit and the rear ground contact wheels being steered, the load lifting device being arranged substantially in the median axis of the vehicle, the seat being offset on one side of this central axis, the group motor power being installed on the other side of this median axis.

Les roues arrières de contact avec le sol peuvent ne pas être entraînées par le groupe de puissance moteur.Rear ground contact wheels may not be driven by the engine power unit.

L'axe du vilebrequin du moteur est sensiblement perpendiculaire au plan médian x-x' avant-arrière du véhicule et placé le plus en arrière possible, devant des roues arrières.The axis of the crankshaft of the engine is substantially perpendicular to the median plane x-x 'front-rear of the vehicle and placed as far back as possible, in front of rear wheels.

De cette manière le bras télescopique peut être installé le long du siège, au-dessus du groupe de puissance moteur et en position basse sur le côté intérieur d'une roue avant, et le dispositif de relevage de charges dans l'axe médian du véhicule.In this way the telescopic arm can be installed along the seat, above the engine power group and in the down position on the inside of a front wheel, and the load lifting device in the center line of the vehicle. .

Par exemple, le siège du conducteur pourra être décalé de 450 mm de l'axe médian, en recouvrant en partie le dispositif de relevage de charges situé dans cet axe. Le bras télescopique étant décalé d'environ 150 mm de l'autre côté de l'axe médian et permettant le passage du bras à côté d'une roue avant.For example, the driver's seat may be shifted 450 mm from the center line, partially covering the load lifting device located in this axis. The telescopic arm being offset by about 150 mm on the other side of the central axis and allowing the passage of the arm next to a front wheel.

Le véhicule a de préférence une largeur inférieure à 1 800 mm. Le groupe de puissance moteur peut entraîner les roues par un dispositif hydraulique.The vehicle preferably has a width of less than 1800 mm. The engine power group may cause the wheels by a hydraulic device.

L'axe de pivotement du bras peut occuper une position se trouvant derrière l'axe de rotation des roues arrières.The pivot axis of the arm can occupy a position behind the axis of rotation of the rear wheels.

Ainsi la présente réalisation permet d'atteindre l'objet précité par réalisation d'une machine peu encombrante dont la largeur peut être inférieure à 1 800 mm, la longueur de moins de 2 600 mm et de hauteur de moins de 2 300 mm. Ce résultat est obtenu par la disposition du dispositif de relevage de charge dans l'axe médian, du bras télescopique intercalé entre le siège conducteur et la roue avant opposé, du groupe de puissance moteur installé perpendiculairement à l'axe du véhicule et partiellement sous la flèche.Thus, the present embodiment makes it possible to achieve the aforementioned object by producing a machine with small dimensions whose width may be less than 1800 mm, the length of less than 2600 mm and a height of less than 2300 mm. This result is obtained by the arrangement of the load lifting device in the central axis, the telescopic arm interposed between the driver's seat and the opposite front wheel, the engine power unit installed perpendicular to the axis of the vehicle and partially under the arrow.

Un tel véhicule est relativement étroit, possède des roues avant de grandes dimensions alors que la visibilité vers l'avant du conducteur n'est pas réduite de manière superflue par des éléments du véhicule.Such a vehicle is relatively narrow, has large front wheels while visibility to the front of the driver is not superfluously reduced by elements of the vehicle.

D'autres caractéristiques et avantages de l'invention seront mieux compris à la lecture de la description d'exemple de réalisation faite en référence aux dessins annexés:

  • La figure 1 est une vue en élévation latérale d'un véhicule de manutention de charges selon l'invention.
  • La figure 2 est une vue latérale du côté opposé à la figure 1.
  • La figure 3 est une vue de dessus du véhicule selon l'invention.
  • La figure 4 est une vue avant du véhicule selon l'invention.
  • La figure 5 est une vue arrière du véhicule selon l'invention.
  • La figure 6 est une vue en coupe transversale au niveau de l'axe moteur.
  • La figure 7 est une variante du véhicule proposé.
Other characteristics and advantages of the invention will be better understood on reading the description of exemplary embodiment given with reference to the accompanying drawings:
  • Figure 1 is a side elevational view of a load handling vehicle according to the invention.
  • Figure 2 is a side view of the side opposite to Figure 1.
  • Figure 3 is a top view of the vehicle according to the invention.
  • Figure 4 is a front view of the vehicle according to the invention.
  • Figure 5 is a rear view of the vehicle according to the invention.
  • Figure 6 is a cross-sectional view at the motor axis.
  • Figure 7 is a variant of the proposed vehicle.

On se réfère aux figures 1 à 5 qui représentent un véhicule de charges de type d'un chariot élévateur télescopique, portant la référence générale 1. Le véhicule 1 possède une extrémité avant 11 et une extrémité arrière 12. Deux roues avant 13 de contact avec le sol de grandes dimensions sont placées dans la région d'extrémité avant et sont opposées dans la direction de la largeur du véhicule afin qu'elles se trouvent chacune d'un côté du véhicule. Deux roues arrières 14 de contact avec le sol sont placées dans une région d'extrémité arrière du véhicule et sont aussi espacées suivant la largeur du véhicule afin qu'elles se trouvent chacune d'un côté du véhicule.Referring to Figures 1 to 5 which show a load vehicle type of a telescopic forklift, generally 1. The vehicle 1 has a front end 11 and an end Rear 12. Two large ground front wheels 13 are placed in the front end region and are opposite in the width direction of the vehicle so that they are each on one side of the vehicle. Two rear ground contact wheels 14 are placed in a rear end region of the vehicle and are also spaced along the width of the vehicle so that they are each on one side of the vehicle.

Les roues arrières 14 sont montées sur un essieu 15 de suspension classique 16 et elles ne sont pas entraînées par le moteur. Elles sont directrices par l'intermédiaire d'un vérin de direction 17 d'installation classique.The rear wheels 14 are mounted on a conventional suspension axle 16 and are not driven by the engine. They are directed via a steering cylinder 17 of conventional installation.

Les roues avant 13 sont entraînées par un ensemble de réducteurs 18 et de moteurs hydrauliques 19 de conception classique. Cet ensemble pourrait être remplacé par un pont entraîné par un moteur hydraulique.The front wheels 13 are driven by a set of reducers 18 and hydraulic motors 19 of conventional design. This assembly could be replaced by a bridge driven by a hydraulic motor.

Un siège 20 est décalé du plan médian x-x' du véhicule dans le sens opposé au bras 30 et au groupe de puissance 60 définis ci-après.A seat 20 is offset from the median plane x-x 'of the vehicle in the opposite direction to the arm 30 and the power group 60 defined below.

Un siège 20 destiné à l'opérateur peut être disposé à l'intérieur d'un compartiment d'opérateur 21, dans lequel est placé un volant 22 et des commandes classiques de pédales et de manettes du véhicule.An operator seat 20 may be disposed within an operator compartment 21, in which a steering wheel 22 and conventional pedal and joystick controls of the vehicle are placed.

Ce compartiment 21 de type cabine possède plusieurs ouvertures qui peuvent être vitrées ou non. Une porte d'accès peut ou non être aménagée dans ce compartiment. Cet ensemble peut être lié à la structure porteuse par des suspensions élastiques.This compartment 21 cabin type has several openings that can be glazed or not. An access door may or may not be fitted in this compartment. This assembly can be linked to the supporting structure by elastic suspensions.

Le dispositif de relevage de charges comporte un bras télescopique 30 unique monté de manière pivotante sur la structure 50 dans une région arrière 12 du bras afin qu' il présente un mouvement de pivotement vertical sous la commande du dispositif de relevage de charge dans un plan qui s'étend dans la direction avant-arrière du véhicule, parallèle au plan central x-x' du véhicule et décalé de ce plan dans le sens de la largeur. Pour cela, le bras 30 est articulé sur la structure 50 autour d'un axe horizontal 62, placé également dans la région arrière 12 de la structure 50. Ce bras télescopique 30, s'étendant parallèlement au plan médian X-X' du côté opposé au compartiment opérateur 21, est décalé par rapport au plan central x-x' afin que sa projection soit située de façon générale à l'intérieur des roues avant et laisse une place disponible pour l'installation du compartiment opérateur 21 et le dispositif de relevage de charges sur un côté de ce bras.The load lifting device comprises a single telescopic arm 30 pivotally mounted on the structure 50 in a rear region 12 of the arm so that it has a vertical pivoting movement under the control of the load lifting device in a plane which extends in the front-rear direction of the vehicle, parallel to the central plane xx 'of the vehicle and offset from this plane in the direction of the width. For this, the arm 30 is articulated on the structure 50 about a horizontal axis 62, also located in the rear region 12 of the structure 50. This telescopic arm 30, extending parallel to the median plane XX 'on the opposite side of the operator compartment 21, is offset relative to the central plane xx' so that its projection is located from generally within the front wheels and leaves a space available for the installation of the operator compartment 21 and the load lifting device on one side of this arm.

Le bras télescopique 30 est composé en son extrémité avant 31 d'un support accessoires de charges 32 articulé autour de l'axe 33 solidaire du bras télescopique. La rotation du support accessoire est assurée par un vérin d'inclinaison 34 placé sensiblement dans l'axe médian x-x' du véhicule et fixé sur le support accessoires par l'articulation 35, et le bras télescopique par l'articulation 36.The telescopic arm 30 is composed at its front end 31 of a load accessory support 32 hinged about the axis 33 integral with the telescopic arm. The rotation of the accessory support is ensured by a tilt cylinder 34 placed substantially in the median axis x-x 'of the vehicle and fixed on the accessory support by the articulation 35, and the telescopic arm by the articulation 36.

Le bras télescopique 30 est mis en pivotement vers le haut et vers le bas par un vérin de relevage 37 raccordé en 38 par un axe au bras télescopique 30 et par un axe 39 à la structure 50.The telescopic arm 30 is pivoted upwards and downwards by a lift cylinder 37 connected at 38 by an axis to the telescopic arm 30 and by an axis 39 to the structure 50.

Cette position du bras télescopique 30 autorise l'installation de roues avant 13 de grandes dimensions.This position of the telescopic arm 30 allows the installation of large front wheels 13.

Le dispositif de relevage de charges (vérin d'inclinaison 34 et vérin de relevage 37) est complété par un vérin de compensation 40 fixé sur le bras 30 par l'articulation 41 et sur la structure 50 par l'articulation 42. Ce vérin 40, relié au vérin d'inclinaison 34 par des tuyauteries hydrauliques et par une définition adaptée maintient angulairement le support accessoires par rapport à l'horizontale pendant la fonction de relevage. La fonction compensation installée est de type classique. Ce vérin de compensation 40 est installé dans le plan du vérin de relevage 37. Ainsi les 3 vérins du dispositif de relevage de charges, soit les vérins d'inclinaison 34, de relevage 37 et de compensation 40 sont situés sensiblement dans le plan médian x-x' de la machine.The load lifting device (tilt cylinder 34 and lifting cylinder 37) is completed by a compensation cylinder 40 fixed on the arm 30 by the articulation 41 and on the structure 50 by the articulation 42. This jack 40 , connected to the tilt cylinder 34 by hydraulic pipes and by a suitable definition angularly maintains the accessory support relative to the horizontal during the lifting function. The compensation function installed is of the classic type. This compensation cylinder 40 is installed in the plane of the lift cylinder 37. Thus, the three jacks of the load lifting device, namely the tilt, tilt and compensating jacks 34, are located substantially in the center plane xx 'of the machine.

Le groupe de puissance moteur 60 est installé du côté opposé au siège du conducteur, et en partie sous le bras 30, son axe de vilebrequin 61 étant disposé sensiblement perpendiculairement à l'axe médian x-x'. Ce groupe de puissance moteur 60 peut avoir comme source d'énergie le fuel, mais aussi le gaz (naturel ou propane) ou l'électricité délivrée par des batteries. Ce groupe de puissance moteur est disposé transversalement permettant une accessibilité naturelle du moteur 60 et des organes hydrauliques 70 et 75 situés sous la structure 50 et la cabine 21.The engine power group 60 is installed on the opposite to the seat of the driver, and partly under the arm 30, its crankshaft axis 61 being disposed substantially perpendicular to the median axis x-x '. This group of engine power 60 can have as energy source fuel, but also the gas (natural or propane) or electricity delivered by batteries. This group of engine power is arranged transversely allowing a natural accessibility of the engine 60 and the hydraulic members 70 and 75 located under the structure 50 and the cabin 21.

La structure porteuse 50 comporte une poutre centrale 51 reconstituée par assemblage de tôles 52 soudées et formant une section fermée 53 de grande inertie de torsion, et assurant un bon maintien de la charge lorsque celle-ci est levée. Dans l'exemple considéré, la section de la poutre centrale est sensiblement carré.The supporting structure 50 comprises a central beam 51 reconstituted by assembling welded sheets 52 and forming a closed section 53 of great torsional inertia, and ensuring good maintenance of the load when the latter is lifted. In the example considered, the section of the central beam is substantially square.

Sur cette poutre sont soudées les fixations 39 du vérin de relevage 37, celles 42 du vérin de compensation 40, la fixation 62 du bras 30, les supports de la cabine 21 ou du siège 20, les supports du groupe de puissance moteur 60, la suspension 16 des roues arrières 14, les supports des roues avant 13, ainsi que les fixations des composants nécessaires au fonctionnement et à la sécurité de ce type de véhicule.On this beam are welded the fasteners 39 of the lift cylinder 37, those 42 of the compensation cylinder 40, the attachment 62 of the arm 30, the supports of the booth 21 or the seat 20, the supports of the engine power unit 60, the suspension 16 of the rear wheels 14, the supports of the front wheels 13, and the fasteners of the components necessary for the operation and safety of this type of vehicle.

Pour la transmission de puissance de translation, le moteur de puissance 60 est raccordé aux roues avant motrices 13 par une transmission hydraulique comprenant une pompe 70, un ou plusieurs moteurs hydrauliques 18, différents capteurs et actionneurs, le tout géré par un ensemble électronique.For the translational power transmission, the power motor 60 is connected to the front wheels 13 by a hydraulic transmission comprising a pump 70, one or more hydraulic motors 18, various sensors and actuators, all managed by an electronic assembly.

Cette transmission hydraulique proviendra d'un fabricant de ce type de composants.This hydraulic transmission will come from a manufacturer of this type of components.

Pour la transmission de puissance au dispositif de relevage de charge, sera installée derrière la pompe de translation 70, une pompe hydraulique 75. Des distributeurs hydrauliques commandés depuis le poste de commande 21 distribueront la puissance délivrée par cette pompe 75 sur les vérins sélectionnés. Cette transmission sera réalisée à l'aide de composants du commerce.For the power transmission to the load lifting device, will be installed behind the translation pump 70, a hydraulic pump 75. Hydraulic distributors controlled from the control station 21 will distribute the power delivered by the pump 75 on the selected cylinders. This transmission will be carried out using trade components.

De façon générale, les sources de bruit (aspiration radiateurs 91, filtre à air, échappement 90), seront installées du côté opposé à la cabine.In general, the noise sources (radiator suction 91, air filter, exhaust 90), will be installed on the opposite side to the cabin.

La figure 7 décrit une variante du véhicule précédent et consiste à rendre les roues arrières motrices et directrices. La transmission hydraulique de la puissance du moteur 60 aux roues arrières 14 se fera par l'intermédiaire de moteurs hydrauliques 72 et de réducteurs 73 installées sur la partie pivotante des roues 14. Cette transmission hydraulique reprendra une partie des composants de la translation des roues avant 13.Figure 7 describes a variant of the previous vehicle and consists in making the rear wheels drive and steering. The hydraulic transmission of the power of the engine 60 to the rear wheels 14 will be via hydraulic motors 72 and 73 gearboxes installed on the pivoting portion of the wheels 14. This hydraulic transmission will take up some of the components of the translation of the front wheels 13.

Claims (6)

  1. - A material handling vehicle (1) including a structure (50) provided with two front wheels (13) driven by a motor (19) and with two steered rear wheels (14), said structure (50) bearing an operator compartment (21) which comprises a seat (20) shifted relatively to the median plane X-X' of the vehicle and a jointed telescopic arm (30) at the rear of the vehicle and extending parallel to the median plane X-X' on the opposite side to the operator compartment (21), characterized in that it comprises a central beam (51) on which the required actuators (34,37,40) for lifting the telescopic arm (30) are firmly attached, so that said actuators (34, 37, 40) extend in the median plane X-X' of the vehicle.
  2. - The vehicle according to claim 1, characterized in that the central beam (51) consists of sheet metal (52) welded while forming a substantially closed section.
  3. - The vehicle according to any of claims 1 or 2, characterized in that the steered rear wheels (14) have a diameter less than that of the front wheels (13) of the vehicle.
  4. - The vehicle according to any of the preceding claims, characterized in that it comprises a power motor unit (60) positioned on the opposite side to the seat (21) of the driver and in part under the telescopic arm (30) so that the axis of its crankshaft (61) is positioned substantially perpendicular to the median plane X-X'.
  5. - The vehicle according to claim 4, characterized in that the power motor unit (60) is connected to the driven front wheels (13) through a hydraulic transmission.
  6. - The vehicle according to any of claims 4 or 5, characterized in that the power motor unit (60) is connected to the rear wheels (14) through a hydraulic transmission.
EP03813633A 2002-12-18 2003-12-18 Material handling vehicle Expired - Lifetime EP1585699B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR0216068 2002-12-18
FR0216068A FR2849009B1 (en) 2002-12-18 2002-12-18 SEMI-INDUSTRIAL CARRIER, WITH VARIABLE RANGE, FOR THE HANDLING OF MATERIALS
PCT/FR2003/003797 WO2004056691A1 (en) 2002-12-18 2003-12-18 Material handling vehicle

Publications (2)

Publication Number Publication Date
EP1585699A1 EP1585699A1 (en) 2005-10-19
EP1585699B1 true EP1585699B1 (en) 2007-05-09

Family

ID=32406143

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03813633A Expired - Lifetime EP1585699B1 (en) 2002-12-18 2003-12-18 Material handling vehicle

Country Status (7)

Country Link
EP (1) EP1585699B1 (en)
AT (1) ATE361895T1 (en)
AU (1) AU2003300660A1 (en)
DE (1) DE60313806T2 (en)
ES (1) ES2287576T3 (en)
FR (1) FR2849009B1 (en)
WO (1) WO2004056691A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2477760B (en) * 2010-02-11 2015-06-03 Bamford Excavators Ltd Working machine
GB2477759B (en) 2010-02-11 2015-02-18 Bamford Excavators Ltd Working machine
FR3027614B1 (en) * 2014-10-22 2016-12-23 R M S Rondeau Metallerie Service ADAPTABLE TERRAIN DEVICE ON THE APRON OF A TELESCOPIC TROLLEY
FR3043997B1 (en) * 2015-11-24 2018-07-27 Manitou Bf HANDLING VEHICLE

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2790568A (en) * 1955-06-30 1957-04-30 Vernon G Mandt Swing-type material moving machine
GB2292931B (en) * 1992-06-30 1996-10-02 Caterpillar Inc Material handling machine
CA2153955C (en) * 1994-07-15 2005-01-11 John Moses Material-handling vehicle
GB9717892D0 (en) * 1997-08-23 1997-10-29 Jcb Special Products Ltd Skid steer loader vehicle
GB9807530D0 (en) * 1998-04-09 1998-06-10 Bamford Excavators Ltd Material-handling vehicle
IT1304978B1 (en) * 1998-09-10 2001-04-05 Merlo Ind Metalmecc VEHICLE USABLE AS LIFT AND AGRICULTURAL TRACTOR.
US6425453B1 (en) * 2000-12-08 2002-07-30 Clark Equipment Company Transmission on all wheel steer power machine
FR2827589B1 (en) * 2001-07-20 2003-12-05 Bobcat France Sa COMPACT LIFT TRUCK

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
FR2849009B1 (en) 2005-12-30
ATE361895T1 (en) 2007-06-15
DE60313806T2 (en) 2008-01-24
AU2003300660A1 (en) 2004-07-14
EP1585699A1 (en) 2005-10-19
DE60313806D1 (en) 2007-06-21
FR2849009A1 (en) 2004-06-25
ES2287576T3 (en) 2007-12-16
WO2004056691A1 (en) 2004-07-08

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