FR2581636A1 - Lifting-truck equipment enabling the load to be lifted and advanced - Google Patents

Lifting-truck equipment enabling the load to be lifted and advanced Download PDF

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Publication number
FR2581636A1
FR2581636A1 FR8507167A FR8507167A FR2581636A1 FR 2581636 A1 FR2581636 A1 FR 2581636A1 FR 8507167 A FR8507167 A FR 8507167A FR 8507167 A FR8507167 A FR 8507167A FR 2581636 A1 FR2581636 A1 FR 2581636A1
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France
Prior art keywords
arm
arms
lifting
load
equipment
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Granted
Application number
FR8507167A
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French (fr)
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FR2581636B1 (en
Inventor
Bernard Audureau
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AUDUREAU SA
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AUDUREAU SA
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Publication date
Application filed by AUDUREAU SA filed Critical AUDUREAU SA
Priority to FR8507167A priority Critical patent/FR2581636B1/en
Publication of FR2581636A1 publication Critical patent/FR2581636A1/en
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Publication of FR2581636B1 publication Critical patent/FR2581636B1/en
Expired legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01D—HARVESTING; MOWING
    • A01D87/00—Loaders for hay or like field crops
    • A01D87/0053—Tractor-mounted loaders
    • A01D87/0069—Tractor-mounted loaders mounted on the tractor but having their own lifting device
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, 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
    • B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
    • B66F9/06—Devices 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
    • B66F9/065—Devices 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
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/28—Dredgers; 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
    • E02F3/36—Component parts
    • E02F3/38—Cantilever beams, i.e. booms;, e.g. manufacturing processes, forms, geometry or materials used for booms; Dipper-arms, e.g. manufacturing processes, forms, geometry or materials used for dipper-arms; Bucket-arms

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Civil Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Transportation (AREA)
  • Mining & Mineral Resources (AREA)
  • General Engineering & Computer Science (AREA)
  • Environmental Sciences (AREA)
  • Geology (AREA)
  • Forklifts And Lifting Vehicles (AREA)

Abstract

Articulated arm assembly intended for lifting-truck equipment and for enabling a load to be lifted and advanced on forks which are kept horizontal by a hydraulic compensation system. The narrow assembly can be mounted easily in the axis of the supporting machine. The supporting arm 6 and the advancing jack 4 may be mounted easily via the support 9 onto the front of the machine.

Description

L'invention a pour objet l'équipement de chariots elévéteurs, afin de leur permettre non seulement d'élaver une charge, mais aussi de pouvoir avancer cette charge par rapport à la machine porteuse. Dans les deux mouvements levage et avancee, les fourches portant la charge doivent rester horizontales. Le mécanisme permettant cette horizontalité est appelé compensation. Le mouvement d'avance a déjà été réalise de différentes façons, la plus correcte étant l'équipement de chariots avec un bras téléscopique qui assure à lui seul les deux fonctions.The invention relates to the equipment of forklifts, in order to allow them not only to remove a load, but also to be able to advance this load relative to the carrying machine. In both lifting and advancing movements, the forks carrying the load must remain horizontal. The mechanism allowing this horizontality is called compensation. The advance movement has already been carried out in different ways, the most correct being the equipment of trolleys with a telescopic arm which alone performs the two functions.

Une autre manière de réaliser les fonctions levage et avancée existe en la combinaison de deux ensembles de bras, l'ensemble de bras réalisant le levage étant porté par un autre ensemble de bras réalisant l'avancée. Dans ce dernier cas, la compensation est réalisée, soit par un ensemble de biellettes formant des parallélogrammes déformables, soit par un moyen hydraulique.Another way of carrying out the lifting and advanced functions exists in the combination of two sets of arms, the set of arms carrying out the lifting being carried by another set of arms carrying out the advancement. In the latter case, the compensation is carried out either by a set of rods forming deformable parallelograms, or by hydraulic means.

La compensation hydraulique peut être réalisée à l'aide d'un vérin auppîdmentaire qui est actionné par le bras et dont le volume du liquide déplacé alimente le vérin assurant l'horizontalité, ou par le vérin qui assuré le mouvement du bras et dont la capacité est calculée pour assurer la compensation du vérin qui assure l'horizontalité. C'est dans cette dernier catégorie de compensation que se situe l'invention.Hydraulic compensation can be achieved using an additional cylinder which is actuated by the arm and the volume of the displaced liquid feeds the cylinder ensuring the horizontality, or by the cylinder which ensures the movement of the arm and whose capacity is calculated to compensate the cylinder which ensures horizontality. It is in this latter category of compensation that the invention is situated.

I1 a déjà été réalisé des machines avec des ensembles de bras et compensations hydrauliques permettant levage st avancée. Ces machines sont équipées d'une cabine centrale et les bras se déplacent de chaque cbté de la cabine. De ce fait, les bras sont éloignés les uns des autres et sont par cela même difficiles à relier pour les solidariser par paires. TDut l'ensemble a tendance à se gauchir ce qui rend les liaisons entre paires de bras très fragiles. Le plus souvent, les vérins qui actionnent ces paires de bras arrivent en fin de eourse les uns après les autres.Dans ces machines, l'ensemble des bras porteurs ou d'avancée, pour éviter d'obstruer les issues de la chbine, est articulé à l'arrière da calle-ci, soit, trèe loin du pont porteur, et nécessite un chassis important. Par contre, l'ansemble des bras de levage, qui est articulé à l'arrière sur l'ensemble des bras d'avancée et qui porte à l'avant la charge, se déplace de chaque côté de la cabine et dans certaines conditions peut être très dangereux. (phénomène de ciseillement). I1 has already been made machines with sets of arms and hydraulic compensations allowing lifting st advanced. These machines are equipped with a central cabin and the arms move from each side of the cabin. Therefore, the arms are distant from each other and are therefore difficult to connect to secure them in pairs. TDut the whole tends to warp which makes the connections between pairs of arms very fragile. Most often, the actuators which actuate these pairs of arms arrive at the end of the race one after the other. In these machines, all of the carrying or advancing arms, to avoid obstructing the exits of the machine, is articulated at the rear of this one, that is to say, very far from the carrying bridge, and requires a large chassis. On the other hand, the set of lifting arms, which is articulated at the rear on the set of advancing arms and which carries the load at the front, moves on each side of the cabin and under certain conditions can to be very dangerous. (shear phenomenon).

L'invention a pour but principal de permettre le levage et l'avancée d'une charge par un système de bras articulés adaptable sur tous les chariots porteurs, ensemble de largeur très réduite permettant son positionnement dans l'axe de la tachine de base.The main purpose of the invention is to allow the lifting and advancement of a load by a system of articulated arms adaptable to all carrying carriages, a set of very reduced width allowing its positioning in the axis of the basic tachine.

UN autre but de l'invention est de réaliser des bras fabriqués en forme de caissons et de positionner les vérins qui assurent les mouvements dans l'axe de ces bras, tout ceci afin d'éviter le ddhan- chement du système.Another object of the invention is to produce arms manufactured in the form of boxes and to position the jacks which ensure the movements in the axis of these arms, all of this in order to avoid the rearrangement of the system.

Un autre but de l'invention est d'articuler le bras porteur dit d'avancée à l'avant de la machine, (sur la pont porteur dans le cas d'une basse de tracteur agricols) d'éviter un chassis coôteux, et de libérer toute la partie arrière du véhicule porteur afin de permettre l'accessibilité aux organas moteurs.Another object of the invention is to articulate the so-called forward carrying arm at the front of the machine, (on the carrying bridge in the case of an agricultural tractor bass) to avoid a costly chassis, and to free the entire rear part of the carrier vehicle to allow accessibility to the engine organs.

Un dernier but, qui est à la base de l'invention et qui vise la sécurité du conducteur, est de permettre l'installation de la cabine à côté du système de bras et laisser l'accès de la cabine entièrement libéré, en évitant tout phénomène de cissillement.A final object, which is the basis of the invention and which aims at the safety of the driver, is to allow the installation of the cabin next to the arm system and leave the access to the cabin completely free, avoiding all shearing phenomenon.

Pour mieux faire apprécier l'invention, on donnera un exemple de réalisation et on es raporters aux dessins annexés : - La figure I reprsente une vue en élévation du système de bras, - La figure 2 représenta une vus de dessus. To better appreciate the invention, we will give an exemplary embodiment and we are related to the accompanying drawings: - Figure I shows an elevational view of the arm system, - Figure 2 shows a top view.

Les deux bras constituant la base de l'invention sont formes chacun de deux bras caissons reliés entre eux par d'autres caissons. Ils ont chacun une grande rigidité et sont de ce fait presque indéformables.The two arms constituting the base of the invention are each formed of two box arms connected together by other boxes. They each have great rigidity and are therefore almost undeformable.

Les vérins sont positionnés dans l'axe des bras , Fig 2. Pour les deux raisons précédentes, le déhanchement de l'ensemble de bras est supprimé.The cylinders are positioned in the axis of the arms, Fig 2. For the two preceding reasons, the wobbling of the arm assembly is eliminated.

Les deux bras du système sont positionnés l'un au dessus de l'autre, et sont de petite largeur, Fig 1 et 2.The two arms of the system are positioned one above the other, and are of small width, Fig 1 and 2.

Le bras dtevancée 6 S et le vérin qui l'actionne 8 sont articulés sur un support 11. Ce support de dimensions très réduites peut être facilement fixé sur le pont porteur du véhicule de base (par exemple pont arrière d'un tracteur agricole). The dtevancée 6S arm and the actuator which actuates it 8 are articulated on a support 11. This support of very reduced dimensions can be easily fixed on the carrying deck of the base vehicle (for example rear deck of an agricultural tractor).

Dans l'exemple de réalisation donné, le bras de levage 1 articulé en 2 est actionné par le vérin 3. LA chanbre avant du vérin 3 est relié à la chambre arrière du vérin 4 , ce qui permet la compensation du porte fourchas 5 et assura
Le bras de levage I est articulé en 2 sur un deuxième bras 6 qui permet an s'inclinent vers l'avant l'avancée et une légère élévation du bras 1.In the example of embodiment given, the lifting arm 1 articulated in 2 is actuated by the jack 3. THE front shaft of the jack 3 is connected to the rear chamber of the jack 4, which allows the compensation of the fork carrier 5 and ensures
The lifting arm I is articulated in 2 on a second arm 6 which allows a forward tilt and a slight elevation of the arm 1.

Le bras d'avancée 6 est actionné par le vérin 8 qui le fait bassculer vers l'avant auteur de l'articulation 9
La chambre arrière du vérin B est reliée à la chambre arrière du vérin 7, et permet d'assurer la compensation, c'est à dire de conserver a la biellette 10 qui est articulée en 2 et qui est solidaire des vérins 3 et 7 par l'axe 12, l'angle initial qu'elle fait avec la verticale.The advancement arm 6 is actuated by the actuator 8 which causes it to tilt forwards, author of the articulation 9
The rear chamber of the actuator B is connected to the rear chamber of the actuator 7, and makes it possible to ensure compensation, that is to say to keep a link 10 which is articulated at 2 and which is integral with the actuators 3 and 7 by axis 12, the initial angle it makes with the vertical.

Dans ce mouvaient tout l'ensemble bras de levage avance donc sans changer d'inclinaison et les fourches restent horizontales. In this movement the whole lifting arm advance therefore without changing the inclination and the forks remain horizontal.

Claims (4)

REVENDICATIONS 1. Equipement adaptable aux chariots élévateurs de machines porteuses tels que tracteurs agricoles à transmissions mécaniques, hydrodynemiques ou hydrostatiques, en particulier pour l'élévation d'une charge et son avancée par l'intermédiaire de bras articulés à compensation hydrauliqus équipement caractérisé en ce que les bras (1 st 6) constituant cet équipement, sont de faible largeur, réalisés sous forme de caissons indéformables ; le bras (1) tant un bras de levage, le bras (6) étant d'un bras d'avancée.1. Equipment adaptable to forklifts of load-bearing machines such as agricultural tractors with mechanical, hydrodynamic or hydrostatic transmissions, in particular for lifting a load and its advance by means of articulated arms with hydraulic compensation equipment characterized in that the arms (1 st 6) constituting this equipment, are of small width, produced in the form of non-deformable boxes; the arm (1) being a lifting arm, the arm (6) being of an advancing arm. 2. Equipement selon le revendication (1) caractérisé en ce que le bras porteur est disposé parallélement et au dessus du bras d'avancée (6).2. Equipment according to claim (1) characterized in that the support arm is arranged parallel and above the advancement arm (6). 3. Equipement selon l'une quelconque des revendications (1) et (2) caractérisé en ce que les vérins (3, 4, 7, 8) qui actiennent les bras (1) et (6) sont placés dans l'axe longitudinal des dits bras, et sont reliée deux par deux (7 et 8) (3 et 4) afin de permettre de conserver hydrauliquement l'horizontabilité de la charge portée par le bras de levage (1).3. Equipment according to any one of claims (1) and (2) characterized in that the jacks (3, 4, 7, 8) which actuate the arms (1) and (6) are placed in the longitudinal axis said arms, and are connected two by two (7 and 8) (3 and 4) in order to hydraulically maintain the horizontality of the load carried by the lifting arm (1). 4. Equipement salon l'uns quelconque des revendications fct ( 3) caracté- risé en ce que l'ensemble des bras est articulé par l'intermédiaire du bras porteur (6) et du vérin d'avancée (4) b l'avant de la machine directement sur le pont porteur, par l'intermédiaire d'un support (il) 4. Salon equipment any one of the claims fct (3) characterized in that the set of arms is articulated by means of the support arm (6) and the advancement cylinder (4) b the front of the machine directly on the carrying bridge, via a support (it)
FR8507167A 1985-05-07 1985-05-07 LIFT TRUCK EQUIPMENT FOR LIFTING AND ADVANCING THE LOAD Expired FR2581636B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR8507167A FR2581636B1 (en) 1985-05-07 1985-05-07 LIFT TRUCK EQUIPMENT FOR LIFTING AND ADVANCING THE LOAD

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8507167A FR2581636B1 (en) 1985-05-07 1985-05-07 LIFT TRUCK EQUIPMENT FOR LIFTING AND ADVANCING THE LOAD

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FR2581636A1 true FR2581636A1 (en) 1986-11-14
FR2581636B1 FR2581636B1 (en) 1988-05-06

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FR8507167A Expired FR2581636B1 (en) 1985-05-07 1985-05-07 LIFT TRUCK EQUIPMENT FOR LIFTING AND ADVANCING THE LOAD

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Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1372650A (en) * 1963-08-09 1964-09-18 Faucheux Ets Front loader with great penetrating power and instant coupling to the tractor
US3257014A (en) * 1964-09-14 1966-06-21 Sturdivant Ag Mobile loader
FR1588920A (en) * 1967-09-21 1970-03-16
FR2102032A5 (en) * 1970-08-27 1972-03-31 Texaco Development Corp
FR2379657A1 (en) * 1977-02-02 1978-09-01 Int Harvester Co Portal boom for tractor loading shovel - has box section legs with round hollow section bars welded into pressed holes in faces
FR2398850A1 (en) * 1977-07-07 1979-02-23 Caterpillar Tractor Co BUCKET JOINT MECHANISM OF A HYDRAULIC EXCAVATOR
US4266909A (en) * 1979-01-29 1981-05-12 Westendorf Manufacturing Co. Means for hydraulic self-leveling of a loader bucket
US4345873A (en) * 1980-06-02 1982-08-24 Wymore Roger S Material handling vehicle
FR2520715A1 (en) * 1982-01-29 1983-08-05 Cadillon Fork lift truck - has articulated telescopic arms which enable fork to be manipulated

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1372650A (en) * 1963-08-09 1964-09-18 Faucheux Ets Front loader with great penetrating power and instant coupling to the tractor
US3257014A (en) * 1964-09-14 1966-06-21 Sturdivant Ag Mobile loader
FR1588920A (en) * 1967-09-21 1970-03-16
FR2102032A5 (en) * 1970-08-27 1972-03-31 Texaco Development Corp
FR2379657A1 (en) * 1977-02-02 1978-09-01 Int Harvester Co Portal boom for tractor loading shovel - has box section legs with round hollow section bars welded into pressed holes in faces
FR2398850A1 (en) * 1977-07-07 1979-02-23 Caterpillar Tractor Co BUCKET JOINT MECHANISM OF A HYDRAULIC EXCAVATOR
US4266909A (en) * 1979-01-29 1981-05-12 Westendorf Manufacturing Co. Means for hydraulic self-leveling of a loader bucket
US4345873A (en) * 1980-06-02 1982-08-24 Wymore Roger S Material handling vehicle
FR2520715A1 (en) * 1982-01-29 1983-08-05 Cadillon Fork lift truck - has articulated telescopic arms which enable fork to be manipulated

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Publication number Publication date
FR2581636B1 (en) 1988-05-06

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