EP2678264B1 - Device for moving a load around by pushing and pulling and handling vehicle equipped with such a device - Google Patents

Device for moving a load around by pushing and pulling and handling vehicle equipped with such a device Download PDF

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Publication number
EP2678264B1
EP2678264B1 EP20120710764 EP12710764A EP2678264B1 EP 2678264 B1 EP2678264 B1 EP 2678264B1 EP 20120710764 EP20120710764 EP 20120710764 EP 12710764 A EP12710764 A EP 12710764A EP 2678264 B1 EP2678264 B1 EP 2678264B1
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EP
European Patent Office
Prior art keywords
load
handling
handling vehicle
telescopic
actuators
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Not-in-force
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EP20120710764
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German (de)
French (fr)
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EP2678264A1 (en
Inventor
Pierre Marcelli
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Rotobloc-PSP SARL
ROTOBLOC PSP SARL
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Rotobloc-PSP SARL
ROTOBLOC PSP SARL
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Publication of EP2678264A1 publication Critical patent/EP2678264A1/en
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Publication of EP2678264B1 publication Critical patent/EP2678264B1/en
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    • 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
    • B66F9/075—Constructional features or details
    • B66F9/12—Platforms; Forks; Other load supporting or gripping members
    • B66F9/19—Additional means for facilitating unloading
    • B66F9/195—Additional means for facilitating unloading for pushing the load

Definitions

  • the present invention relates to a device for transferring a load by pushing and pulling in the same plane, called a transfer plane, this device being intended to be mounted on a handling machine for transferring a tool, a mold, a metal mass or similar, of said handling machine to a table and vice versa, said handling machine comprising load-bearing means, and said device comprising at least one handling arm provided at its free end with coupling means intended to cooperate with means of transport.
  • complementary coupling provided on said load, said handling arm being coupled to actuating means for being displaced between at least one retracted position and an extended position and vice versa, between which said coupling means move in a plane parallel to said transfer plan.
  • the present invention also relates to a handling machine comprising load-bearing means and equipped with a transfer device.
  • the publication WO 97/38934 of the same applicant proposes a pulling device provided with an articulated arm which passes from a folded position to an extended position, whose joints are synchronized to ensure a rectilinear and stable trajectory without guidance, this arm being able to lodge at the inside the mast of a forklift so as to be located at the rear of the sliding apron so as not to penalize the useful length of the forks of the truck.
  • this device although greatly improving the known push-pull devices, still has certain disadvantages: in particular, the load is nevertheless deported to the front of Forks with a value of 200 to 300 mm, the visibility through the deck is difficult since the rickshaw arm is implanted in this area, and the thrust force is variable as it depends on the angle of opening of the arm.
  • the publication GB 651,215 proposes a handling machine provided with a pusher in the form of a vertical plate disposed at the front of the mast and moved horizontally, parallel to the forks, by two parallel cylinders arranged outside the handling machine , above guide rails in which rollers circulate, for guiding horizontal translation of said pusher.
  • This solution is not optimal for many reasons.
  • the pusher penalizes visibility through the apron. It is also limited to the unloading mode of the forks because it is not coupled to the load to be able to work in loading mode. Its stroke is limited to the length of the rod cylinders which are simple cylinders not telescopic.
  • the need to combine cylinders and guide rails increases the manufacture of such a configuration and creates a hyperstatic system.
  • the present invention aims to provide a solution to the problems mentioned above by proposing a transfer device of simple and economical design, adaptable to any standard deck and easy to integrate with any handling gear, ergonomic and leaving the driver of the machine to handling all the visibility through the deck, this device can also deploy a large and constant force allowing it to push loads on both forks and tables not provided with rolling members, on a race that can s' extend beyond the length of the forks.
  • the invention relates to a transfer device of the kind indicated in the preamble, characterized in that the actuating means comprise at least one telescopic actuator carried by at least one fastening flange, said fastening flange being intended to be coupled to said load carrier means so that said telescopic actuator extends substantially parallel to the transfer plane and is disposed outside said engine of handling, in that said telescopic actuator comprises at least two stages nested one inside the other so as to be able to develop a total stroke equal to at least twice the length of each stage and in that said telescopic actuator constitutes the means translational guiding said handling arm in said plane parallel to said transfer plane.
  • the transfer device is disposed entirely outside the handling machine. It penalizes only very little the load volume of the load carrier means and does not obstruct the visibility of the operator through said machine.
  • the fact of using a telescopic actuator provides a large stroke depending on the number of stages with a reduced size actuator.
  • the device comprises at least two telescopic actuators each carried by at least one fastening flange, said actuators being parallel to each other and spaced from each other by a distance enabling them to be mounted. outside said handling machine, and at least two handling arms each coupled to an actuator, said handling arms being interconnected by a force cross member carrying the coupling means.
  • the corresponding stages of the two telescopic actuators may be interconnected by connecting crosspieces.
  • the cross member and the connecting cross members have complementary shapes allowing their nesting nesting in the retracted position.
  • the telescopic actuators are telescopic cylinders with double telescopic effect at least two stages and the handling arms are merged with the rods of said cylinders.
  • the telescopic actuators are double-acting cylinders and the handling arms are rails coupled to said cylinders by a transmission arranged to constitute a hauling system and selected from the group comprising the pinions and chain, the pulleys. and toothed belt.
  • the fastening flanges can be mounted on a common mounting beam intended to be fixed to said load carrier means of the handling machine, these fastening flanges being arranged to hold said actuators by means of a rigid connection, pivoting or rotary .
  • each fastening flange may constitute a rotation axis hinge parallel to said transfer plane.
  • said fixing flange is intended to be fixed to said load carrier means of the handling machine.
  • the transfer device may comprise hooking means for coupling said transfer device to said table. It can also carry load forks.
  • the invention relates to a handling machine of the type indicated in the preamble and characterized in that it is equipped with said transfer device as defined above, arranged so that each telescopic actuator is disposed at the outside of said handling machine and extends substantially parallel to the transfer plane.
  • the load-bearing means of the handling machine comprise a mast carrying a load-bearing apron and the transfer device is fixed to the load-bearing apron.
  • this transfer device can carry load forks directly.
  • the load carrier means of the handling machine comprise a lifting table and the transfer device is fixed to said lifting table.
  • the load-bearing means of the handling machine comprise a motorized carriage and the transfer device is fixed to said motorized carriage.
  • the transfer device 10, 20, 60, 100 is arranged to transfer a load 1, a tool, a mold, a metal mass or the like, of a handling machine 30, 40, 50 to a table 2 belonging or not to a machine 3 such as a press, a console 4 or the like, and vice versa.
  • a machine 3 such as a press, a console 4 or the like
  • the handling machine 30, 40, 50 may be of different types and comprises, in basic version, a technical compartment 31 supported by wheels 32 and load carrier means generally movable at least in the vertical direction.
  • these load-bearing means may comprise either a vertical mast 33 integral with the technical compartment 31, carrying a load carrying deck 34 alone (cf. Fig. 1A and 1B , 4A, 4B ) or a load carrying deck 34 associated with forks 35 (cf. Fig. 2A and 2B , 6 ), or a lifting table 36 (cf. Fig. 3A and 3B ), or a motorized horizontal carriage (not shown).
  • This machine handling 30, 40, 50 can be moved by an operator by means of a handle 37 or constitute a self-propelled vehicle driven by an operator (not shown).
  • the transfer device 10, 20, 60, 100 of the invention constitutes an accessory that can be mounted on any type of handling machine 30, 40, 50 and adapting to any type of use and application. It makes it possible to move a load 1 by pushing and pulling in the same plane, called the transfer plane P, generally confused with the plane of the table 2, making it possible to unload and load the load 1. It comprises, for this purpose, the minus one and, in the examples shown, two parallel actuators 11, 21, which have the particularity of being telescopic, and which are coupled to the load carrier means of the handling machine 30, 40, 50 so that s' extending substantially parallel to said transfer plane P.
  • Telescopic actuator is called any actuator having at least two stages nested one inside the other and capable of deploying a total stroke equal to at least twice the length of a stage.
  • Telescopic actuator is called any actuator having at least two stages nested one inside the other and capable of deploying a total stroke equal to at least twice the length of a stage.
  • the thrust force can be very high, especially to move a load 1 on a table 2 not equipped with rolling members, and can easily reach 10 tons.
  • These actuators 11, 21 are further arranged parallel to each other and spaced from each other by a distance D allowing them to be mounted outside the handling machine, on either side of the Technical compartment 31.
  • a single actuator may be sufficient to move a load. In this case, the load must be guided either laterally or in the thrust axis of the actuator.
  • the transfer device 10, 20, 60, 100 is completed by two handling arms 12, 22 extending the actuators 11, 21 or forming an integral part of said actuators as explained below, and interconnected by a cross beam of force 13.
  • the free ends of the handling arms 12, 22 are fixed to said crossbar 13 by a rigid mechanical connection, so without play, to ensure a synchronous movement of the actuators 11, 21 without phase shift or offsetting.
  • the crossbar 13 carries the coupling means 14 complementary to the coupling means 5 fixed to the load 1.
  • these coupling means 14 form a hooking system provided with cylindrical bayonets 15, tenons shoulders or the like, which are housed in hooks double opening, that is to say open upwards and downwards, coupling means 5 of the load 1.
  • These coupling means 14, 5 are advantageous since they allow to hang and unhook the load 1 during the rising and falling phases of the load carrier means of the handling machine with respect to said load. Thus, they do not require any specific mechanism and do not require any source of energy. In addition, they guarantee the safety of the operators, since the displacement of the load 1 can be done only if the coupling means 14 and 5 are hooked.
  • the transfer device 10, 20, 60, 100 is carried by a mounting beam 16, 160 intended to be fixed on the load-bearing means, such as the deck 34 of the handling machine 30, 40 (cf. Fig. 1 , 2 , 4 , 5 , 6 ), the lifting table 36 of the handling machine 50 (cf. Fig. 3 ) or the motorized carriage in a variant not shown.
  • the mounting cross-member 16, 160 has at its lateral ends two fastening flanges 17 in which the actuators 11, 21 are mounted. Depending on the needs and variant embodiments, these fastening flanges 17 can ensure that the actuators 11, 21 are held by a rigid link, rotating or spherical depending on the degrees of freedom that one wishes to give them.
  • the mounting beam 16, 160 may have different sections according to the load carrier means.
  • the transfer device 10, 20 When the transfer device 10, 20 is to be mounted on a load carrying deck 34, it may have a flat C-shaped section to be able to hook on the standard horizontal sections 38 of said deck 34.
  • the mounting crosspiece 16 When the transfer device 10 , 20 must be mounted on a lifting table 36 or a motorized trolley (not shown), the mounting crosspiece 16 may have a single flat section fixed by welding or any other rigid fixing means on the edge of the table. It is also possible to directly mount the fastening flanges 17 on the load-bearing means of the handling machine, without resorting to the cross mounting 16.
  • the actuators 11 consist of two-stage double-acting telescopic cylinders.
  • the number of stages is of course not limited and more than two stages can be provided depending on the travel of the load 1.
  • the body of the cylinder 11 is fixed in the mounting bearings 17 of the mounting crosspiece 16, 160 and the free end of the rod of the cylinders 11 is fixed on the cross beam 13.
  • the rod of the cylinders 11 forms, in this case, said handling arms 12.
  • This type of actuator has several advantages: in the retracted position the actuators 11 occupy a reduced space corresponding substantially to the length of the body of the cylinders; in extended position, they deploy a stroke substantially equal to X times that of the length of the body of the cylinders, X corresponding to the number of stages of the actuators; and their pushing and pulling force is large and constant on the stroke deployed by each stage of the actuators.
  • These actuators 11 are hydraulically powered by the hydraulic reserve and the control unit of the handling equipment or by a dedicated central and embedded on said machine.
  • the handling machine 30 has only its load carrying deck 34, without fork, to be able to bind directly to the edge of a table 2 press 3 with hooks 18 which fit into a groove 6 provided in the table 2, so as not to move during the transfers of the load 1.
  • the transfer device 10 is hooked to the load carrying deck 34 and can be brought to a height such that the coupling means 14 are aligned with the complementary coupling means 5 of the load 1.
  • This device is otherwise located opposite a console 4 and allows to move the load 1, for example a press tool, in the transfer plane P, from the table 2 to the console 4 and vice versa, in the direction of the double arrow F, the actuators 11 passing through the press 3.
  • the table 2, the 3, the console 4 and the load 1, as well as the actuators 11 in extended position, are represented in short broken lines on the Figure 1B .
  • This handling machine 30 equipped with its transfer device 10 can be versatile and thus be suitable for several presses to change the press tools for example.
  • the handling machine 40 has forks 35 associated with the load carrying deck 34, to be able to carry a load 1 for example between a store and a press 3 and vice versa.
  • the transfer device 10 is hooked on the load carrying deck 34 just above the forks 35 and only impinges on the useful surface of the forks 35 of a value limited to the depth of the crossbar of force 13, about five centimeters, which is quite acceptable.
  • the handling machine 40 is moved in the axis of the machine 3 and the forks 35 in the transfer plane P, their free ends against the edge of the table 2.
  • the transfer device 10 can thus move the load 1 in the transfer plane P of the forks 35 to the press table 2 and vice versa, in the direction of the double arrow F, the actuators 11 remaining outside the press 3.
  • the table 2, the press 3 and the load 1, as well as the actuators 11 in extended position, are represented in short broken lines on the Figure 2B .
  • the handling machine 50 comprises a scissor lift table 36, in place of the forks 35 and the load carrying deck 34, to be able to transport a load 1, for example, between a magazine and a press 3.
  • the transfer device 10 is fixed to the edge of the lifting table 36 and only impinges on the useful surface of this table by a value corresponding to the depth of the crossbar force 13.
  • the handling machine 50 is brought into the axis of the machine 3 and the lifting table 36 in the transfer plane P. It is coupled to the edge of the table 2 by hooks 39 nested in a groove 6, or by any equivalent means, so as not to move during transfers.
  • the transfer device 10 can thus move the load 1 in the transfer plane P of the lifting table 36 to the press table 2 and vice versa, in the direction of the double arrow F, the actuators 11 remaining outside the the press 3.
  • the table 2, the press 3 and the load 1, as well as the actuators 11 in extended position, are represented in short broken lines on the figure 3B .
  • the transfer device 100 substantially corresponds to that of the Figures 2A and 2B , except that the mounting beam 160 carries the forks 35.
  • the figure 5 illustrates another embodiment of the transfer device 20 embedded on a forklift truck 35.
  • the actuators 21 are no longer, as in the previous examples, telescopic double-acting cylinders, but double-acting cylinders coupled to telescopic handling arms 22 at least one stage and, in the example shown, two stages, by means of a transmission arranged to form a hauling system.
  • This transmission may comprise a chain 23 and two pinions 24, a toothed belt and two pulleys, or any other similar transmission.
  • the number of gears varies according to the number of stages of the telescopic handling arm 22.
  • the actuators 21 occupy a reduced space limited substantially to the length of the body of the cylinders and, in extended position, these actuators 21 combined with the telescopic handling arms 22 deploy a stroke substantially equal to twice that of the length of the body of the cylinders.
  • Each actuator 21 comprises a fixed part fixed to the deck 34 by fixing clamps (not shown), formed by the body of the jack 210, a fixed rail 220 and the fixed attachment point 230 of the chain 23. It comprises a part intermediate, movable relative to the fixed part, formed by the cylinder rod 211, an intermediate telescopic rail 221 and the two pinion pins 24. It comprises a distal portion, movable relative to the intermediate portion, formed by a telescopic rail mobile 222, the force cross member 13 carrying the coupling means 14 and the movable attachment point 231 of the chain 23.
  • the rod 211 of the cylinder 21 exits the body 210, it causes the rotation of the chain 23 which moves a double stroke the telescopic handling arm 22.
  • FIGS. 6 and 7 show another embodiment of a transfer device 60 according to the invention providing improvements to the transfer devices 10, 20 described above.
  • the corresponding stages two actuators 11 are interconnected by connecting crosspieces 61, 62 so as to make each relevant stage rigid.
  • each actuator 11 is pivotally mounted about a horizontal axis of rotation A and parallel to the transfer plane P for the purpose. to be able to unhook and hook the load 1 by simply lifting the actuators 11, without moving the deck 34 vertically.
  • this axis of rotation A is defined by a hinge 63 provided on a fastening flange 64 arranged to fix the body of the actuator 11 on the deck 34 at the rear of the second connecting beam 62.
  • the lifting movement of the actuators 11 can be carried out manually by the operator or by means of a lifting actuator 65 hooked with a part at a fixed point of the deck 34 and at a central point 66 of the second connecting beam 62 (cf. Fig. 6 ).

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

Description

Domaine technique :Technical area :

La présente invention concerne un dispositif de transfert d'une charge par poussée et traction dans un même plan, appelé plan de transfert, ce dispositif étant destiné à être monté sur un engin de manutention pour transférer un outil, un moule, une masse métallique ou similaire, dudit engin de manutention à une table et inversement, ledit engin de manutention comportant des moyens porte-charge, et ledit dispositif comportant au moins un bras de manutention pourvu à son extrémité libre de moyens d'attelage destinés à coopérer avec des moyens d'attelage complémentaires prévus sur ladite charge, ledit bras de manutention étant couplé à des moyens d'actionnement pour être déplacé entre au moins une position rétractée et une position étendue et inversement, entre lesquelles lesdits moyens d'attelage se déplacent dans un plan parallèle audit plan de transfert. La présente invention concerne également un engin de manutention comportant des moyens porte-charge et équipé d'un dispositif de transfert.The present invention relates to a device for transferring a load by pushing and pulling in the same plane, called a transfer plane, this device being intended to be mounted on a handling machine for transferring a tool, a mold, a metal mass or similar, of said handling machine to a table and vice versa, said handling machine comprising load-bearing means, and said device comprising at least one handling arm provided at its free end with coupling means intended to cooperate with means of transport. complementary coupling provided on said load, said handling arm being coupled to actuating means for being displaced between at least one retracted position and an extended position and vice versa, between which said coupling means move in a plane parallel to said transfer plan. The present invention also relates to a handling machine comprising load-bearing means and equipped with a transfer device.

Technique antérieure :Prior art:

La publication WO 97/38934 du même demandeur propose un dispositif tire-pousse pourvu d'un bras articulé qui passe d'une position repliée à une position étendue, dont les articulations sont synchronisées pour garantir une trajectoire rectiligne et stable sans guidage, ce bras pouvant se loger à l'intérieur du mât d'un chariot élévateur de manière à se situer à l'arrière du tablier coulissant pour ne pas pénaliser la longueur utile des fourches du chariot. Toutefois, ce dispositif, bien qu'améliorant considérablement les dispositifs tire-pousse connus, présente encore certains inconvénients : notamment, la charge est malgré tout déportée sur le devant des fourches d'une valeur de 200 à 300 mm, la visibilité à travers le tablier est difficile puisque le bras tire-pousse est implanté dans cette zone, et l'effort de poussée est variable étant donné qu'il dépend de l'angle d'ouverture du bras.The publication WO 97/38934 of the same applicant proposes a pulling device provided with an articulated arm which passes from a folded position to an extended position, whose joints are synchronized to ensure a rectilinear and stable trajectory without guidance, this arm being able to lodge at the inside the mast of a forklift so as to be located at the rear of the sliding apron so as not to penalize the useful length of the forks of the truck. However, this device, although greatly improving the known push-pull devices, still has certain disadvantages: in particular, the load is nevertheless deported to the front of Forks with a value of 200 to 300 mm, the visibility through the deck is difficult since the rickshaw arm is implanted in this area, and the thrust force is variable as it depends on the angle of opening of the arm.

La publication GB 651 215 propose un engin de manutention pourvu d'un poussoir se présentant sous la forme d'une plaque verticale disposée à l'avant du mât et déplacée horizontalement, parallèlement aux fourches, par deux vérins parallèles disposés à l'extérieur de l'engin de manutention, au dessus de rails de guidage dans lesquels circulent des galets, servant au guidage en translation horizontale dudit poussoir. Cette solution n'est pas optimale pour de multiples raisons. Le poussoir pénalise la visibilité à travers le tablier. Il est de plus limité au mode déchargement des fourches car il n'est pas attelé à la charge pour pouvoir travailler en mode chargement. Sa course est limitée à la longueur de la tige des vérins qui sont des vérins simples non télescopiques. Enfin, la nécessité dé combiner des vérins et des rails de guidage renchérit la fabrication d'une telle configuration et crée un système hyperstatique.The publication GB 651,215 proposes a handling machine provided with a pusher in the form of a vertical plate disposed at the front of the mast and moved horizontally, parallel to the forks, by two parallel cylinders arranged outside the handling machine , above guide rails in which rollers circulate, for guiding horizontal translation of said pusher. This solution is not optimal for many reasons. The pusher penalizes visibility through the apron. It is also limited to the unloading mode of the forks because it is not coupled to the load to be able to work in loading mode. Its stroke is limited to the length of the rod cylinders which are simple cylinders not telescopic. Finally, the need to combine cylinders and guide rails increases the manufacture of such a configuration and creates a hyperstatic system.

Exposé de invention :Invention:

La présente invention vise à apporter une solution aux problèmes évoqués ci-dessus en proposant un dispositif de transfert de conception simple et économique, adaptable sur tout tablier normalisé et intégrable facilement à tout engin de manutention, ergonomique et laissant au conducteur de l'engin de manutention toute la visibilité à travers le tablier, ce dispositif pouvant en plus déployer une force importante et constante lui permettant de pousser des charges aussi bien sur des fourches que sur des tables non pourvues d'organes de roulement, sur une course qui peut s'étendre au-delà de la longueur des fourches.The present invention aims to provide a solution to the problems mentioned above by proposing a transfer device of simple and economical design, adaptable to any standard deck and easy to integrate with any handling gear, ergonomic and leaving the driver of the machine to handling all the visibility through the deck, this device can also deploy a large and constant force allowing it to push loads on both forks and tables not provided with rolling members, on a race that can s' extend beyond the length of the forks.

Dans ce but, l'invention concerne un dispositif de transfert du genre indiqué en préambule, caractérisé en ce que les moyens d'actionnement comportent au moins un actionneur télescopique porté par au moins une bride de fixation, cette bride de fixation étant destinée à être couplée auxdits moyens porte-charge dé sorte que ledit actionneur télescopique s'étende sensiblement parallèlement au plan de transfert et soit disposé à l'extérieur dudit engin de manutention, en ce que ledit actionneur télescopique comporte au moins deux étages imbriqués l'un dans l'autre de sorte à pouvoir développer une course totale égale au moins à deux fois la longueur de chaque étage et en ce que ledit actionneur télescopique constitue les moyens de guidage en translation dudit bras de manutention dans ledit plan parallèle audit plan de transfert.For this purpose, the invention relates to a transfer device of the kind indicated in the preamble, characterized in that the actuating means comprise at least one telescopic actuator carried by at least one fastening flange, said fastening flange being intended to be coupled to said load carrier means so that said telescopic actuator extends substantially parallel to the transfer plane and is disposed outside said engine of handling, in that said telescopic actuator comprises at least two stages nested one inside the other so as to be able to develop a total stroke equal to at least twice the length of each stage and in that said telescopic actuator constitutes the means translational guiding said handling arm in said plane parallel to said transfer plane.

Ainsi, le dispositif de transfert est disposé entièrement à l'extérieur de l'engin de manutention. Il ne pénalise que très peu le volume de chargement des moyens porte-charge et n'obstrue pas la visibilité de l'opérateur à travers ledit engin. De plus, le fait d'utiliser un actionneur télescopique permet de disposer d'une course importante en fonction du nombre d'étages avec un actionneur d'encombrement réduit.Thus, the transfer device is disposed entirely outside the handling machine. It penalizes only very little the load volume of the load carrier means and does not obstruct the visibility of the operator through said machine. In addition, the fact of using a telescopic actuator provides a large stroke depending on the number of stages with a reduced size actuator.

Dans une forme de réalisation préférée, le dispositif comporte au moins deux actionneurs télescopiques portés chacun par au moins une bride de fixation, lesdits actionneurs étant parallèles entre eux et écartés l'un de l'autre d'une distance leur permettant d'être montés à l'extérieur dudit engin de manutention, et au moins deux bras de manutention chacun couplé à un actionneur, lesdits bras de manutention étant reliés entre eux par une traverse de force portant les moyens d'attelage.In a preferred embodiment, the device comprises at least two telescopic actuators each carried by at least one fastening flange, said actuators being parallel to each other and spaced from each other by a distance enabling them to be mounted. outside said handling machine, and at least two handling arms each coupled to an actuator, said handling arms being interconnected by a force cross member carrying the coupling means.

De manière avantageuse, les étages correspondant des deux actionneurs télescopiques peuvent être reliés entre eux par des traverses de liaison. Dans ce cas, la traverse de force et les traverses de liaison présentent des formes complémentaires permettant leur emboîtement gigogne en position rétractée.Advantageously, the corresponding stages of the two telescopic actuators may be interconnected by connecting crosspieces. In this case, the cross member and the connecting cross members have complementary shapes allowing their nesting nesting in the retracted position.

Dans une première forme de réalisation, les actionneurs télescopiques sont des vérins télescopiques à double effet télescopiques à au moins deux étages et les bras de manutention sont confondus avec les tiges desdits vérins.In a first embodiment, the telescopic actuators are telescopic cylinders with double telescopic effect at least two stages and the handling arms are merged with the rods of said cylinders.

Dans une seconde forme de réalisation, les actionneurs télescopiques sont des vérins à double effet et les bras de manutention sont des rails couplés auxdits vérins par une transmission agencée pour constituer un système à mouflage et choisie dans le groupe comportant les pignons et chaîne, les poulies et courroie crantée.In a second embodiment, the telescopic actuators are double-acting cylinders and the handling arms are rails coupled to said cylinders by a transmission arranged to constitute a hauling system and selected from the group comprising the pinions and chain, the pulleys. and toothed belt.

Les brides de fixation peuvent être montées sur une traverse de montage commune destinée à être fixée auxdits moyens porte-charge de l'engin de manutention, ces brides de fixation étant agencées pour maintenir lesdits actionneurs au moyen d'une liaison rigide, pivotante ou rotative.The fastening flanges can be mounted on a common mounting beam intended to be fixed to said load carrier means of the handling machine, these fastening flanges being arranged to hold said actuators by means of a rigid connection, pivoting or rotary .

Selon les variantes de réalisation, chaque bride de fixation peut constituer une charnière d'axe de rotation parallèle audit plan de transfert. Dans ce cas, ladite bride de fixation est destinée à être fixée auxdits moyens porte-charge de l'engin de manutention.According to the variant embodiments, each fastening flange may constitute a rotation axis hinge parallel to said transfer plane. In this case, said fixing flange is intended to be fixed to said load carrier means of the handling machine.

Selon les applications, le dispositif de transfert peut comporter des moyens d'accrochage destinés à coupler ledit dispositif de transfert à ladite table. Il peut aussi porter des fourches porte-charge.According to the applications, the transfer device may comprise hooking means for coupling said transfer device to said table. It can also carry load forks.

Dans ce but également, l'invention concerne un engin de manutention du genre indiqué en préambule et caractérisé en ce qu'il est équipé dudit dispositif de transfert tel que défini ci-dessus, agencé de sorte que chaque actionneur télescopique soit disposé à l'extérieur dudit engin de manutention et s'étende sensiblement parallèlement au plan de transfert.For this purpose also, the invention relates to a handling machine of the type indicated in the preamble and characterized in that it is equipped with said transfer device as defined above, arranged so that each telescopic actuator is disposed at the outside of said handling machine and extends substantially parallel to the transfer plane.

Dans une première forme de réalisation, les moyens porte-charge de l'engin de manutention comportent un mât portant un tablier porte-charge et le dispositif de transfert est fixé au tablier porte-charge. Selon le cas, ce dispositif de transfert peut porter directement des fourches porte-charge.In a first embodiment, the load-bearing means of the handling machine comprise a mast carrying a load-bearing apron and the transfer device is fixed to the load-bearing apron. Depending on the case, this transfer device can carry load forks directly.

Dans une deuxième forme de réalisation, les moyens porte-charge de l'engin de manutention comportent une table élévatrice et le dispositif de transfert est fixé à ladite table élévatrice.In a second embodiment, the load carrier means of the handling machine comprise a lifting table and the transfer device is fixed to said lifting table.

Dans une troisième forme de réalisation, les moyens porte-charge de l'engin de manutention comportent un chariot motorisé et le dispositif de transfert est fixé audit chariot motorisé.In a third embodiment, the load-bearing means of the handling machine comprise a motorized carriage and the transfer device is fixed to said motorized carriage.

Rescription sommaire des dessins :Summary summary of drawings:

La présente invention et ses avantages apparaîtront mieux dans la description suivante d'un mode de réalisation donné à titre d'exemple non limitatif, en référence aux dessins annexés, dans lesquels:

  • la figure 1A est une vue en perspective d'un premier type d'engin de manutention sans fourche, équipé d'un dispositif de transfert selon l'invention, et la figure 1B est une vue de face montrant l'implantation dudit engin de manutention accosté à une table de presse,
  • la figure 2A est une vue en perspective d'un deuxième type d'engin de manutention avec fourches, équipé d'un dispositif de transfert selon l'invention, et la figure 2B est une vue de face montrant l'implantation dudit engin de manutention devant une table de presse,
  • la figure 3A est une vue en perspective d'un troisième type d'engin de manutention avec table élévatrice, équipé d'un dispositif de transfert selon l'invention, et la figure 3B est une vue de face montrant l'implantation dudit engin de manutention devant une table de presse,
  • la figure 4A est une vue en perspective d'une première variante de réalisation du dispositif de transfert selon l'invention, et la figure 4B est une vue en perspective montrant l'implantation dudit dispositif de transfert sur un engin de manutention à fourches,
  • la figure 5 est une vue en perspective montrant l'implantation d'une deuxième variante de réalisation du dispositif de transfert sur un engin dé manutention à fourches,
  • la figure 6 est une vue de côté d'un engin de manutention à fourches devant une table de presse, équipé d'une troisième variante de réalisation du dispositif de transfert,
  • la figure 7A est une vue en perspective du dispositif de transfert implanté sur l'engin de la figure 6, et
  • la figure 7B est une vue agrandie du détail B de la figure 7A.
The present invention and its advantages will appear better in the following description of an embodiment given by way of non-limiting example, with reference to the appended drawings, in which:
  • the Figure 1A is a perspective view of a first type of forklift-equipped handling equipment, equipped with a transfer device according to the invention, and the Figure 1B is a front view showing the implantation of said handling equipment docked at a press table,
  • the Figure 2A is a perspective view of a second type of handling machine with forks, equipped with a transfer device according to the invention, and the Figure 2B is a front view showing the implantation of said handling machine in front of a press table,
  • the figure 3A is a perspective view of a third type of handling machine with lifting table, equipped with a transfer device according to the invention, and the figure 3B is a front view showing the implantation of said handling machine in front of a press table,
  • the Figure 4A is a perspective view of a first embodiment of the transfer device according to the invention, and the Figure 4B is a perspective view showing the implantation of said transfer device on a forklift,
  • the figure 5 is a perspective view showing the implementation of a second embodiment of the transfer device on a forklift,
  • the figure 6 is a side view of a forklift in front of a press table, equipped with a third embodiment of the transfer device,
  • the Figure 7A is a perspective view of the transfer device implanted on the machine of the figure 6 , and
  • the Figure 7B is an enlarged view of detail B of the Figure 7A .

Illustrations de l'invention et différentes manières de réaliser l'invention :Illustrations of the invention and different ways of carrying out the invention:

En référence aux figures, le dispositif de transfert 10, 20, 60, 100 est agencé pour transférer une charge 1, un outil, un moule, une masse métallique ou similaire, d'un engin de manutention 30, 40, 50 à une table 2 appartenant ou non à une machine 3 telle qu'une presse, une console 4 ou similaire, et inversement. Ces exemples ne sont pas limitatifs.With reference to the figures, the transfer device 10, 20, 60, 100 is arranged to transfer a load 1, a tool, a mold, a metal mass or the like, of a handling machine 30, 40, 50 to a table 2 belonging or not to a machine 3 such as a press, a console 4 or the like, and vice versa. These examples are not limiting.

L'engin de manutention 30, 40, 50 peut être de différents types et comporte, en version de base, un compartiment technique 31 supporté par des roues 32 et des moyens porte-charge généralement mobiles au moins dans le sens vertical. Selon le type d'engin de manutention et ses applications, ces moyens porte-charge peuvent comporter soit un mât 33 vertical solidaire du compartiment technique 31, portant un tablier porte-charge 34 seul (cf. fig. 1A et 1B, 4A, 4B) ou un tablier porte-charge 34 associé à des fourches 35 (cf. fig. 2A et 2B, 6), soit une table élévatrice 36 (cf. fig. 3A et 3B), soit un chariot horizontal motorisé (non représenté). Cet engin de manutention 30, 40, 50 peut être déplacé par un opérateur au moyen d'une poignée 37 ou constituer un véhicule autotracté conduit par un opérateur (version non représentée).The handling machine 30, 40, 50 may be of different types and comprises, in basic version, a technical compartment 31 supported by wheels 32 and load carrier means generally movable at least in the vertical direction. Depending on the type of handling machine and its applications, these load-bearing means may comprise either a vertical mast 33 integral with the technical compartment 31, carrying a load carrying deck 34 alone (cf. Fig. 1A and 1B , 4A, 4B ) or a load carrying deck 34 associated with forks 35 (cf. Fig. 2A and 2B , 6 ), or a lifting table 36 (cf. Fig. 3A and 3B ), or a motorized horizontal carriage (not shown). This machine handling 30, 40, 50 can be moved by an operator by means of a handle 37 or constitute a self-propelled vehicle driven by an operator (not shown).

Le dispositif de transfert 10, 20, 60, 100 de l'invention constitue un accessoire pouvant être monté sur tout type d'engin de manutention 30, 40, 50 et s'adaptant à tout type d'utilisation et d'application. Il permet de déplacer une charge 1 par poussée et traction dans un même plan, appelé plan de transfert P, confondu généralement avec le plan de la table 2, permettant de décharger et de charger la charge 1. Il comporte, à cet effet, au moins un et, dans les exemples représentés, deux actionneurs 11, 21 parallèles, qui ont la particularité d'être télescopiques, et qui sont couplés aux moyens porte-charge de l'engin de manutention 30, 40, 50 de sorte à s'étendre sensiblement parallèlement audit plan de transfert P. On appelle actionneur télescopique tout actionneur comportant au moins deux étages imbriqués l'un dans l'autre et capable de déployer une course totale égale à au moins deux fois la longueur d'un étage. Ainsi en se déplaçant entre au moins une position rétractée et une position étendue et inversement, ils déplacent la charge 1 dans le plan de transfert P avec une force de poussée et de traction constante, par étage, puisque l'effort exercé par ces actionneurs est parallèle au plan de transfert P. La force de poussée peut être très élevée, notamment pour déplacer une charge 1 sur une table 2 non équipée d'organes de roulement, et peut atteindre aisément les 10 tonnes. Ces actionneurs 11, 21 sont de plus disposés parallèlement entre eux et écartés l'un de l'autre d'une distance D leur permettant d'être montés à l'extérieur de l'engin de manutention, de part et d'autre du compartiment technique 31. Selon les applications, un seul actionneur peut suffire pour déplacer une charge. Dans ce cas, la charge doit être guidée soit latéralement, soit dans l'axe de poussée de l'actionneur.The transfer device 10, 20, 60, 100 of the invention constitutes an accessory that can be mounted on any type of handling machine 30, 40, 50 and adapting to any type of use and application. It makes it possible to move a load 1 by pushing and pulling in the same plane, called the transfer plane P, generally confused with the plane of the table 2, making it possible to unload and load the load 1. It comprises, for this purpose, the minus one and, in the examples shown, two parallel actuators 11, 21, which have the particularity of being telescopic, and which are coupled to the load carrier means of the handling machine 30, 40, 50 so that s' extending substantially parallel to said transfer plane P. Telescopic actuator is called any actuator having at least two stages nested one inside the other and capable of deploying a total stroke equal to at least twice the length of a stage. Thus, by moving between at least one retracted position and an extended position and vice versa, they move the load 1 in the transfer plane P with a constant thrust and traction force, per stage, since the force exerted by these actuators is parallel to the transfer plane P. The thrust force can be very high, especially to move a load 1 on a table 2 not equipped with rolling members, and can easily reach 10 tons. These actuators 11, 21 are further arranged parallel to each other and spaced from each other by a distance D allowing them to be mounted outside the handling machine, on either side of the Technical compartment 31. Depending on the application, a single actuator may be sufficient to move a load. In this case, the load must be guided either laterally or in the thrust axis of the actuator.

Le dispositif de transfert 10, 20, 60, 100 est complété par deux bras de manutention 12, 22 prolongeant les actionneurs 11, 21 ou faisant partie intégrante desdits actionneurs comme expliqué plus loin, et reliés entre eux par une traverse de force 13. Les extrémités libres des bras de manutention 12, 22 sont fixées à ladite traverse de force 13 par une liaison mécanique rigide, donc sans jeu, afin de garantir un déplacement synchrone des actionneurs 11, 21 sans déphasage, ni désaxage. La traverse de force 13 porte des moyens d'attelage 14 complémentaires aux moyens d'attelage 5 fixés sur la charge 1. Dans les exemples représentés, ces moyens d'attelage 14 forment un système d'accrochage pourvu de baïonnettes cylindriques 15, de tenons épaulés ou similaires, qui se logent dans des crochets à double ouverture, c'est-à-dire ouverts vers le haut et vers le bas, des moyens d'attelage 5 de la charge 1. Ces moyens d'attelage 14, 5 sont avantageux puisqu'ils permettent d'accrocher et de décrocher la charge 1 pendant les phases de montée et de descente des moyens porte-charges de l'engin de manutention par rapport à ladite charge. Ainsi, ils ne nécessitent aucun mécanisme spécifique et ne requièrent aucune source d'énergie. De plus, ils garantissent la sécurité des opérateurs, puisque le déplacement de la charge 1 ne peut se faire que si les moyens d'attelage 14 et 5 sont accrochés.The transfer device 10, 20, 60, 100 is completed by two handling arms 12, 22 extending the actuators 11, 21 or forming an integral part of said actuators as explained below, and interconnected by a cross beam of force 13. The free ends of the handling arms 12, 22 are fixed to said crossbar 13 by a rigid mechanical connection, so without play, to ensure a synchronous movement of the actuators 11, 21 without phase shift or offsetting. The crossbar 13 carries the coupling means 14 complementary to the coupling means 5 fixed to the load 1. In the examples shown, these coupling means 14 form a hooking system provided with cylindrical bayonets 15, tenons shoulders or the like, which are housed in hooks double opening, that is to say open upwards and downwards, coupling means 5 of the load 1. These coupling means 14, 5 are advantageous since they allow to hang and unhook the load 1 during the rising and falling phases of the load carrier means of the handling machine with respect to said load. Thus, they do not require any specific mechanism and do not require any source of energy. In addition, they guarantee the safety of the operators, since the displacement of the load 1 can be done only if the coupling means 14 and 5 are hooked.

Dans les exemples représentés, le dispositif de transfert 10, 20, 60, 100 est porté par une traverse de montage 16, 160 destinée à se fixer sur les moyens porte-charge, tels que le tablier 34 de l'engin de manutention 30, 40 (cf. fig. 1, 2, 4, 5, 6), la table élévatrice 36 de l'engin de manutention 50 (cf. fig. 3) ou le chariot motorisé dans une variante non représentée. La traverse de montage 16, 160 comporte à ses extrémités latérales deux brides de fixation 17 dans lesquelles sont montés les actionneurs 11, 21. Selon les besoins et variantes de réalisation, ces brides de fixation 17 peuvent assurer un maintien des actionneurs 11, 21 par une liaison rigide, rotative ou sphérique selon les degrés de liberté que l'on souhaite leur donner. La traverse de montage 16, 160 peut avoir des sections différentes selon les moyens porte-charge. Lorsque le dispositif de transfert 10, 20 doit être monté sur un tablier porte-charge 34, elle peut avoir une section en forme de C plat pour pouvoir s'accrocher sur les profilés horizontaux 38 normalisés dudit tablier 34. Lorsque le dispositif de transfert 10, 20 doit être monté sur une table élévatrice 36 ou un chariot motorisé (non représenté), la traverse de montage 16 peut avoir une section plate simple, fixée par soudure ou tout autre moyen de fixation rigide sur le bord de la table. On peut également prévoir de monter directement les brides de fixation 17 sur les moyens porte-charge de l'engin de manutention, sans avoir recours à la traverse de montage 16.In the examples shown, the transfer device 10, 20, 60, 100 is carried by a mounting beam 16, 160 intended to be fixed on the load-bearing means, such as the deck 34 of the handling machine 30, 40 (cf. Fig. 1 , 2 , 4 , 5 , 6 ), the lifting table 36 of the handling machine 50 (cf. Fig. 3 ) or the motorized carriage in a variant not shown. The mounting cross-member 16, 160 has at its lateral ends two fastening flanges 17 in which the actuators 11, 21 are mounted. Depending on the needs and variant embodiments, these fastening flanges 17 can ensure that the actuators 11, 21 are held by a rigid link, rotating or spherical depending on the degrees of freedom that one wishes to give them. The mounting beam 16, 160 may have different sections according to the load carrier means. When the transfer device 10, 20 is to be mounted on a load carrying deck 34, it may have a flat C-shaped section to be able to hook on the standard horizontal sections 38 of said deck 34. When the transfer device 10 , 20 must be mounted on a lifting table 36 or a motorized trolley (not shown), the mounting crosspiece 16 may have a single flat section fixed by welding or any other rigid fixing means on the edge of the table. It is also possible to directly mount the fastening flanges 17 on the load-bearing means of the handling machine, without resorting to the cross mounting 16.

Dans les exemples illustrés aux figures 1 à 4, 6 et 7, les actionneurs 11 sont constitués de vérins à double effet télescopiques à deux étages. Le nombre d'étages n'est bien entendu pas limité et on peut prévoir plus de deux étages selon la course à parcourir par la charge 1. Le corps du vérin 11 est fixé dans les paliers de montage 17 de la traverse de montage 16, 160 et l'extrémité libre de la tige des vérins 11 est fixée sur la traverse de force 13. La tige des vérins 11 forme, dans ce cas, lesdits bras de manutention 12. Ce type d'actionneurs présente plusieurs avantages : en position rétractée, les actionneurs 11 occupent un encombrement réduit correspondant sensiblement à la longueur du corps des vérins ; en position étendue, ils déploient une course égale sensiblement à X fois celle de la longueur du corps des vérins, X correspondant au nombre d'étages des actionneurs ; et leur force de poussée et de traction est importante et constante sur la course déployée par chaque étage des actionneurs. Ces actionneurs 11 sont alimentés hydrauliquement par la réserve hydraulique et le boîtier de commande de l'engin de manutention ou par une centrale dédiée et embarquée sur ledit engin.In the examples illustrated in Figures 1 to 4 , 6 and 7 the actuators 11 consist of two-stage double-acting telescopic cylinders. The number of stages is of course not limited and more than two stages can be provided depending on the travel of the load 1. The body of the cylinder 11 is fixed in the mounting bearings 17 of the mounting crosspiece 16, 160 and the free end of the rod of the cylinders 11 is fixed on the cross beam 13. The rod of the cylinders 11 forms, in this case, said handling arms 12. This type of actuator has several advantages: in the retracted position the actuators 11 occupy a reduced space corresponding substantially to the length of the body of the cylinders; in extended position, they deploy a stroke substantially equal to X times that of the length of the body of the cylinders, X corresponding to the number of stages of the actuators; and their pushing and pulling force is large and constant on the stroke deployed by each stage of the actuators. These actuators 11 are hydraulically powered by the hydraulic reserve and the control unit of the handling equipment or by a dedicated central and embedded on said machine.

Dans la réalisation illustrée aux figures 1A et 1B, l'engin de manutention 30 ne comporte que son tablier porte-charge 34, sans fourche, pour pouvoir s'atteler directement au bord d'une table 2 de presse 3 grâce à des crochets 18 qui s'emboîtent dans une rainure 6 prévue dans la table 2, de sorte à ne pas bouger pendant les transferts de la charge 1. Bien entendu tout autre moyen d'attelage équivalent est possible. Dans cette configuration, le dispositif de transfert 10 est accroché au tablier porte-charge 34 et peut être amené à une hauteur telle que les moyens d'attelage 14 soient alignés avec les moyens d'attelage complémentaires 5 de la charge 1. Ce dispositif est par ailleurs situé à l'opposé d'une console 4 et permet de déplacer la charge 1, par exemple un outil de presse, dans le plan de transfert P, de la table 2 à la console 4 et inversement, dans le sens de la flèche double F, les actionneurs 11 traversant la presse 3. La table 2, la presse 3, la console 4 et la charge 1, de même que les actionneurs 11 en position étendue, sont représentés en traits interrompus courts sur la figure 1B. Cet engin de manutention 30 équipé de son dispositif de transfert 10 peut être polyvalent et convenir ainsi à plusieurs presses pour changer les outils de presse par exemple.In the embodiment illustrated in Figures 1A and 1B , the handling machine 30 has only its load carrying deck 34, without fork, to be able to bind directly to the edge of a table 2 press 3 with hooks 18 which fit into a groove 6 provided in the table 2, so as not to move during the transfers of the load 1. Of course any other equivalent coupling means is possible. In this configuration, the transfer device 10 is hooked to the load carrying deck 34 and can be brought to a height such that the coupling means 14 are aligned with the complementary coupling means 5 of the load 1. This device is otherwise located opposite a console 4 and allows to move the load 1, for example a press tool, in the transfer plane P, from the table 2 to the console 4 and vice versa, in the direction of the double arrow F, the actuators 11 passing through the press 3. The table 2, the 3, the console 4 and the load 1, as well as the actuators 11 in extended position, are represented in short broken lines on the Figure 1B . This handling machine 30 equipped with its transfer device 10 can be versatile and thus be suitable for several presses to change the press tools for example.

Dans la réalisation illustrée aux figures 2A et 2B, l'engin de manutention 40 comporte des fourches 35 associées au tablier porte-charge 34, pour pouvoir transporter une charge 1 par exemple entre un magasin et une presse 3 et inversement. Dans cette configuration, le dispositif de transfert 10 est accroché sur le tablier porte-charge 34 juste au-dessus des fourches 35 et n'empiète sur la surface utile des fourches 35 que d'une valeur limitée à la profondeur de la traverse de force 13, soit environ cinq centimètres, ce qui est tout à fait acceptable. Pour charger et décharger la presse 3, l'engin de manutention 40 est amené dans l'axe de la machine 3 et les fourches 35 dans le plan de transfert P, leurs extrémités libres contre le bord de la table 2. Le dispositif de transfert 10 peut ainsi déplacer la charge 1 dans le plan de transfert P des fourches 35 à la table 2 de presse 3 et inversement, dans le sens de la flèche double F, les actionneurs 11 restant à l'extérieur de la presse 3. La table 2, la presse 3 et la charge 1, de même que les actionneurs 11 en position étendue, sont représentés en traits interrompus courts sur la figure 2B.In the embodiment illustrated in Figures 2A and 2B , the handling machine 40 has forks 35 associated with the load carrying deck 34, to be able to carry a load 1 for example between a store and a press 3 and vice versa. In this configuration, the transfer device 10 is hooked on the load carrying deck 34 just above the forks 35 and only impinges on the useful surface of the forks 35 of a value limited to the depth of the crossbar of force 13, about five centimeters, which is quite acceptable. To load and unload the press 3, the handling machine 40 is moved in the axis of the machine 3 and the forks 35 in the transfer plane P, their free ends against the edge of the table 2. The transfer device 10 can thus move the load 1 in the transfer plane P of the forks 35 to the press table 2 and vice versa, in the direction of the double arrow F, the actuators 11 remaining outside the press 3. The table 2, the press 3 and the load 1, as well as the actuators 11 in extended position, are represented in short broken lines on the Figure 2B .

Dans la réalisation illustrée aux figures 3A et 3B, l'engin de manutention 50 comporte une table élévatrice 36 à ciseau, en lieu et place des fourches 35 et du tablier porte-charge 34, pour pouvoir transporter une charge 1, par exemple, entre un magasin et une presse 3. Dans cette configuration, le dispositif de transfert 10 est fixé au bord de la table élévatrice 36 et n'empiète sur la surface utile de cette table que d'une valeur correspondant à la profondeur de la traverse de force 13. Pour charger et décharger la presse 3, l'engin de manutention 50 est amené dans l'axe de la machine 3 et la table élévatrice 36 dans le plan de transfert P. Elle est attelée au bord de la table 2 par des crochets 39 emboîtés dans une rainure 6, ou par tout moyen équivalent, de sorte à ne pas bouger pendant les transferts. Le dispositif de transfert 10 peut ainsi déplacer la charge 1 dans le plan de transfert P de la table élévatrice 36 à la table 2 de presse 3 et inversement, dans le sens de la flèche double F, les actionneurs 11 restant à l'extérieur de la presse 3. La table 2, la presse 3 et la charge 1, de même que les actionneurs 11 en position étendue, sont représentés en traits interrompus courts sur la figure 3B.In the embodiment illustrated in Figures 3A and 3B , the handling machine 50 comprises a scissor lift table 36, in place of the forks 35 and the load carrying deck 34, to be able to transport a load 1, for example, between a magazine and a press 3. In this configuration, the transfer device 10 is fixed to the edge of the lifting table 36 and only impinges on the useful surface of this table by a value corresponding to the depth of the crossbar force 13. To load and unload the press 3 , the handling machine 50 is brought into the axis of the machine 3 and the lifting table 36 in the transfer plane P. It is coupled to the edge of the table 2 by hooks 39 nested in a groove 6, or by any equivalent means, so as not to move during transfers. The transfer device 10 can thus move the load 1 in the transfer plane P of the lifting table 36 to the press table 2 and vice versa, in the direction of the double arrow F, the actuators 11 remaining outside the the press 3. The table 2, the press 3 and the load 1, as well as the actuators 11 in extended position, are represented in short broken lines on the figure 3B .

Dans l'exemple de réalisation illustré aux figures 4A et 4B, le dispositif de transfert 100 correspond sensiblement à celui des figures 2A et 2B, sauf que la traverse de montage 160 porte les fourches 35.In the exemplary embodiment illustrated in Figures 4A and 4B , the transfer device 100 substantially corresponds to that of the Figures 2A and 2B , except that the mounting beam 160 carries the forks 35.

La figure 5 illustre une autre forme de réalisation du dispositif de transfert 20 embarqué sur un engin de manutention 40 à fourches 35. Les actionneurs 21 ne sont plus, comme dans les exemples précédents, des vérins à double effet télescopiques, niais des vérins à double effet couplés à des bras de manutention 22 télescopiques à au moins un étage et, dans l'exemple représenté, à deux étages, au moyen d'une transmission agencée pour former un système à mouflage. Cette transmission peut comporter une chaîne 23 et deux pignons 24, une courroie crantée et deux poulies, ou toute autre transmission similaire. Le nombre de pignons varie en fonction du nombre d'étages du bras de manutention télescopique 22.The figure 5 illustrates another embodiment of the transfer device 20 embedded on a forklift truck 35. The actuators 21 are no longer, as in the previous examples, telescopic double-acting cylinders, but double-acting cylinders coupled to telescopic handling arms 22 at least one stage and, in the example shown, two stages, by means of a transmission arranged to form a hauling system. This transmission may comprise a chain 23 and two pinions 24, a toothed belt and two pulleys, or any other similar transmission. The number of gears varies according to the number of stages of the telescopic handling arm 22.

Le résultat obtenu est le même, à savoir qu'en position rétractée, les actionneurs 21 occupent un encombrement réduit limité sensiblement à la longueur du corps des vérins et, qu'en position étendue, ces actionneurs 21 combinés aux bras de manutention 22 télescopiques déploient une course égale sensiblement à deux fois celle de la longueur du corps des vérins.The result obtained is the same, namely in the retracted position, the actuators 21 occupy a reduced space limited substantially to the length of the body of the cylinders and, in extended position, these actuators 21 combined with the telescopic handling arms 22 deploy a stroke substantially equal to twice that of the length of the body of the cylinders.

Chaque actionneur 21 comporte une partie fixe fixée au tablier 34 par des brides de fixation (non représentées), formée par le corps du vérin 210, un rail fixe 220 et le point d'attache fixe 230 de la chaîne 23. Il comporte une partie intermédiaire, mobile par rapport à la partie fixe, formée par la tige du vérin 211, un rail télescopique intermédiaire 221 et les deux axes de pignons 24. Il comporte une partie distale, mobile par rapport à la partie intermédiaire, formée par un rail télescopique mobile 222, la traverse de force 13 portant les moyens d'attelage 14 et le point d'attache mobile 231 de la chaîne 23. Ainsi, lorsque la tige 211 du vérin 21 sort du corps 210, elle entraîne la rotation de la chaîne 23 qui déplace d'une course double le bras de manutention 22 télescopique.Each actuator 21 comprises a fixed part fixed to the deck 34 by fixing clamps (not shown), formed by the body of the jack 210, a fixed rail 220 and the fixed attachment point 230 of the chain 23. It comprises a part intermediate, movable relative to the fixed part, formed by the cylinder rod 211, an intermediate telescopic rail 221 and the two pinion pins 24. It comprises a distal portion, movable relative to the intermediate portion, formed by a telescopic rail mobile 222, the force cross member 13 carrying the coupling means 14 and the movable attachment point 231 of the chain 23. Thus, when the rod 211 of the cylinder 21 exits the body 210, it causes the rotation of the chain 23 which moves a double stroke the telescopic handling arm 22.

Les figures 6 et 7 montrent un autre mode de réalisation d'un dispositif de transfert 60 selon l'invention apportant des perfectionnements aux dispositifs de transfert 10, 20 décrits ci-dessus. Pour assurer le déplacement synchronisé des différents étages de deux actionneurs télescopiques 11 fonctionnant en parallèle, sans prévoir le montage d'accessoires complexes et onéreux tels que des diviseurs de débit hydrauliques, des systèmes électroniques de comptage (course) et de comparaison, les étages correspondant des deux actionneurs 11 sont liés entre eux par des traverses de liaison 61, 62 de manière à rendre rigide chaque étage concerné. Dans l'exemple représenté dans les figures 7A et 7B, les extrémités des tiges ou bras de manutention 12 du premier étage sont fixées entre elles par la traverse de force 13 qui porte les moyens d'attelage 14, les extrémités des tiges 12' du deuxième étage sont fixées entre elles par une première traverse de liaison 61, et les extrémités du corps des actionneurs 11 sont fixées entre elles par une seconde traverse de liaison 62 non fixée au tablier 34. En position rentrée ou rétractée des actionneurs 11, ces différentes traverses 13, 61, 62 s'emboitent les unes dans les autres en gigogne de manière à occuper un minimum d'encombrement (cf. fig. 7B).The Figures 6 and 7 show another embodiment of a transfer device 60 according to the invention providing improvements to the transfer devices 10, 20 described above. To ensure the synchronized movement of the different stages of two telescopic actuators 11 operating in parallel, without providing for the mounting of complex and expensive accessories such as hydraulic flow dividers, electronic counting (stroke) and comparison systems, the corresponding stages two actuators 11 are interconnected by connecting crosspieces 61, 62 so as to make each relevant stage rigid. In the example shown in Figures 7A and 7B , the ends of the rods or the handling arms 12 of the first stage are fixed together by the crossbar 13 which carries the coupling means 14, the ends of the rods 12 'of the second stage are fixed together by a first cross member link 61, and the ends of the body of the actuators 11 are fixed to each other by a second crossmember 62 not fixed to the deck 34. In the retracted position of the actuators 11, the various crosspieces 13, 61, 62 fit together. in others in a trundle so as to occupy a minimum of space (cf. Fig. 7B ).

Dans ce mode de réalisation, le corps de chaque actionneur 11 est monté pivotant autour d'un axe de rotation A horizontal et parallèle au plan de transfert P dans le but de pouvoir décrocher et accrocher la charge 1 en soulevant simplement les actionneurs 11, sans déplacer verticalement le tablier 34. Dans l'exemple illustré, cet axe de rotation A est défini par une articulation 63 prévue sur une bride de fixation 64 agencée pour fixer le corps de l'actionneur 11 sur le tablier 34 à l'arrière de la seconde traverse de liaison 62. Le mouvement de levée des actionneurs 11 peut être réalisé manuellement par l'opérateur ou au moyen d'un actionneur de levage 65 accroché d'une part à un point fixe du tablier 34 et à un point central 66 de la seconde traverse de liaison 62 (cf. fig. 6).In this embodiment, the body of each actuator 11 is pivotally mounted about a horizontal axis of rotation A and parallel to the transfer plane P for the purpose. to be able to unhook and hook the load 1 by simply lifting the actuators 11, without moving the deck 34 vertically. In the illustrated example, this axis of rotation A is defined by a hinge 63 provided on a fastening flange 64 arranged to fix the body of the actuator 11 on the deck 34 at the rear of the second connecting beam 62. The lifting movement of the actuators 11 can be carried out manually by the operator or by means of a lifting actuator 65 hooked with a part at a fixed point of the deck 34 and at a central point 66 of the second connecting beam 62 (cf. Fig. 6 ).

Possibilités d'application industrielle :Possibilities of industrial application:

Il ressort clairement de cette description que l'invention permet d'atteindre les buts fixés, à savoir un dispositif de transfert de charge simple, économique, performant, peu encombrant et ergonomique, pouvant s'adapter aisément sur tout type d'engin de manutention et pour tout type d'application.It is clear from this description that the invention achieves the goals, namely a simple load transfer device, economical, efficient, compact and ergonomic, can easily adapt to any type of handling equipment and for any type of application.

La présente invention n'est pas limitée aux exemples de réalisation décrits mais s'étend à toute modification et variante évidentes pour un homme du métier tout en restant dans l'étendue de la protection définie dans les revendications annexées.The present invention is not limited to the embodiments described but extends to any modification and variation obvious to a person skilled in the art while remaining within the scope of protection defined in the appended claims.

Claims (14)

  1. Device (10, 20, 60, 100) for moving a load (1) by pushing and pulling in a same plane called transfer plane (P), this device being intended to be mounted on a handing vehicle (30, 40, 50) to transfer a tool, a die, a metal mass or similar from said handling vehicle on a table (2, 3) and vice-versa, said handling vehicle comprising load-carrying means (33-36), and said device comprising at least one handling arm (12, 22) provided at its free end with coupling means (14) intended to co-operate with complementary coupling means (5) provided on said load (1), said handling arm being coupled with driving means (11, 21) to be moved between at least one retracted position and one extended position and vice-versa, between which said coupling means (14) are moving in a plane parallel to said transfer plane (P), characterized in that said driving means comprise at least one telescopic actuator (11, 21) carried by at least one fastening flange (17, 64), this fastening flange being intended to be coupled with said load-bearing means so that said telescopic actuator extends substantially parallel to said transfer plane (P) and is arranged outside of said handling vehicle, in that said telescopic actuator (11, 21) comprises at least two stages nested in each other in order to be able to develop a total stroke at least equal to twice the length of every stage, and in that said telescopic actuator (11, 21) forms the guiding means for the translation of said handling arm (12, 22) in said plane parallel to said transfer plane (P).
  2. Device according to claim 1, characterized in that it comprises at least two telescopic actuators (11, 21) carried each by at least one fastening flange (17, 64), said actuators being parallel to each other and separated from each other by a distance (D) that allows them to be mounted outside of said handling vehicle, and in that said load moving device comprises at least two handling arms (12, 22), each coupled with a telescopic actuator (11, 21), said handling arms being linked to each other by a force transmission crossbeam (13) that carries said coupling means (14) complementary to those provided on the load (1) to be moved.
  3. Device according to claim 2, characterized in that the corresponding stages of the two telescopic actuators (11, 21) are linked to each other by connecting crossbeams (61, 62) and in that said force transmission crossbeam (13) and said connecting crossbeams (61, 62) have complementary shapes that allow nesting them into each other in retracted position.
  4. Device according to any of claims 1 and 2, characterized in that each telescopic actuator (11) is made of a double-acting telescopic cylinder with at least two stages and in that each handling arm (12) corresponds to the rod of said cylinder.
  5. Device according to any of claims 1 and 2, characterized in that each telescopic actuator (21) is made of a double-acting cylinder and in that every handling arm (22) is made of at least one rail coupled with said cylinder through a transmission (23, 24) arranged to form a hauling system and chosen in the group including pinions (24) and a chain (23) or timing pulleys and a timing belt.
  6. Device according to any of claims 1 and 2, characterized in that each fastening flange (17) is mounted on a common supporting crossbeam (16, 160) intended to be fastened to said load-bearing means of the handling vehicle.
  7. Device according to any of claims 1 and 2, characterized in that each fastening flange (64) forms a hinge (63) of a rotational axis (A) parallel to said transfer plane (P) and is intended to be fastened to said load-bearing means of the handling vehicle.
  8. Device according to claim 1, characterized in that it comprises attachment means (18) intended to couple temporarily said load moving device with said table (2).
  9. Device according to claim 6, characterized in that said supporting crossbeam (160) carries load-bearing forks (35).
  10. Handling vehicle (30, 40, 50) comprising load-bearing means, characterized in that it is equipped with a load moving device (10, 20, 60, 100) according to any of the previous claims, arranged so that every telescopic actuator (11, 21) is arranged outside of said handling vehicle and extends substantially parallel to said transfer plane (P).
  11. Handling vehicle according to claim 10, characterized in that the load-bearing means include a mast (33) carrying a load-bearing support (34) and in that said load moving device (10, 20, 60, 100) is fastened to said load-bearing support (34).
  12. Handling vehicle according to claim 11, characterized in that said load moving device (100) carries load-bearing forks (35).
  13. Handling vehicle according to claim 10, characterized in that said load-bearing means include a lifting table (36) and in that said load moving device (10) is fastened to said lifting table (36).
  14. Handling vehicle according to claim 10, characterized in that said load-bearing means include a motorized carriage and in that said load moving device is fastened to said motorized carriage.
EP20120710764 2011-02-25 2012-02-22 Device for moving a load around by pushing and pulling and handling vehicle equipped with such a device Not-in-force EP2678264B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1151570A FR2972003B1 (en) 2011-02-25 2011-02-25 DEVICE FOR TRANSFERRING A PUSHED AND TRACTION LOAD AND HANDLING EQUIPMENT EQUIPPED WITH SUCH A DEVICE
PCT/FR2012/000067 WO2012114003A1 (en) 2011-02-25 2012-02-22 Device for moving a load around by pushing and pulling and handling vehicle equipped with such a device

Publications (2)

Publication Number Publication Date
EP2678264A1 EP2678264A1 (en) 2014-01-01
EP2678264B1 true EP2678264B1 (en) 2015-05-06

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Application Number Title Priority Date Filing Date
EP20120710764 Not-in-force EP2678264B1 (en) 2011-02-25 2012-02-22 Device for moving a load around by pushing and pulling and handling vehicle equipped with such a device

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EP (1) EP2678264B1 (en)
FR (1) FR2972003B1 (en)
WO (1) WO2012114003A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITTV20130144A1 (en) * 2013-09-12 2015-03-13 Italcarrelli S R L SELF PROPELLED VEHICLE FOR THE HANDLING OF TROLLEY STANDS
KR102252875B1 (en) * 2019-04-12 2021-05-17 장진만 Agricultural forklift for seperating easily cargo
CN113334346B (en) * 2021-06-30 2022-04-01 安徽机电职业技术学院 Automatic change transport industrial robot

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB651215A (en) * 1947-01-03 1951-03-14 Clark Equipment Co Improvements in or relating to industrial trucks
US4606690A (en) * 1984-05-08 1986-08-19 Nabisco Brands, Inc. Method and apparatus for load transfer
DE3620964A1 (en) * 1986-06-23 1988-01-14 Guethle Maschinenbau Gmbh & Co Device for transferring heavy loads from one place of storage to another
FR2747381B1 (en) 1996-04-12 1998-06-19 Pierre Marcelli DEVICE FOR TRANSFERING A LOAD BY PUSHING AND TRACTION IN THE SAME PLANE
GB2417022A (en) * 2004-08-12 2006-02-15 Wilmat Handling Company Ltd Mortuary tray retriever
DE102008046174A1 (en) * 2008-09-06 2009-05-20 Daimler Ag Floor conveying device i.e. supply trolley, for e.g. transporting welding tool, has transporting unit including containment unit that is movable from locking position to release position, using forced controller

Also Published As

Publication number Publication date
FR2972003A1 (en) 2012-08-31
EP2678264A1 (en) 2014-01-01
WO2012114003A1 (en) 2012-08-30
FR2972003B1 (en) 2013-03-22

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