EP2192239A1 - Device for coupling and uncoupling an equipment item or a tool to the jib of a civil engineering and/or handling machine. - Google Patents

Device for coupling and uncoupling an equipment item or a tool to the jib of a civil engineering and/or handling machine. Download PDF

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Publication number
EP2192239A1
EP2192239A1 EP09306151A EP09306151A EP2192239A1 EP 2192239 A1 EP2192239 A1 EP 2192239A1 EP 09306151 A EP09306151 A EP 09306151A EP 09306151 A EP09306151 A EP 09306151A EP 2192239 A1 EP2192239 A1 EP 2192239A1
Authority
EP
European Patent Office
Prior art keywords
control
tool
equipment
axis
hooks
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP09306151A
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German (de)
French (fr)
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EP2192239B1 (en
Inventor
M. Valéry Dorguin
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Individual
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Individual
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Publication of EP2192239A1 publication Critical patent/EP2192239A1/en
Application granted granted Critical
Publication of EP2192239B1 publication Critical patent/EP2192239B1/en
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Anticipated expiration legal-status Critical

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Classifications

    • 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
    • E02F3/3604—Devices to connect tools to arms, booms or the like
    • E02F3/3609—Devices to connect tools to arms, booms or the like of the quick acting type, e.g. controlled from the operator seat
    • E02F3/3618—Devices to connect tools to arms, booms or the like of the quick acting type, e.g. controlled from the operator seat with two separating hooks
    • 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
    • E02F3/3604—Devices to connect tools to arms, booms or the like
    • E02F3/3609—Devices to connect tools to arms, booms or the like of the quick acting type, e.g. controlled from the operator seat
    • E02F3/3622—Devices to connect tools to arms, booms or the like of the quick acting type, e.g. controlled from the operator seat with a hook and a locking element acting on a pin
    • 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
    • E02F3/3604—Devices to connect tools to arms, booms or the like
    • E02F3/3609—Devices to connect tools to arms, booms or the like of the quick acting type, e.g. controlled from the operator seat
    • E02F3/3659—Devices to connect tools to arms, booms or the like of the quick acting type, e.g. controlled from the operator seat electrically-operated
    • 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
    • E02F3/3604—Devices to connect tools to arms, booms or the like
    • E02F3/3609—Devices to connect tools to arms, booms or the like of the quick acting type, e.g. controlled from the operator seat
    • E02F3/3663—Devices to connect tools to arms, booms or the like of the quick acting type, e.g. controlled from the operator seat hydraulically-operated
    • 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
    • E02F3/3604—Devices to connect tools to arms, booms or the like
    • E02F3/3609—Devices to connect tools to arms, booms or the like of the quick acting type, e.g. controlled from the operator seat
    • E02F3/3668—Devices to connect tools to arms, booms or the like of the quick acting type, e.g. controlled from the operator seat where engagement is effected by a mechanical lever or handle
    • 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
    • E02F3/3604—Devices to connect tools to arms, booms or the like
    • E02F3/3609—Devices to connect tools to arms, booms or the like of the quick acting type, e.g. controlled from the operator seat
    • E02F3/3672—Devices to connect tools to arms, booms or the like of the quick acting type, e.g. controlled from the operator seat where disengagement is effected by a mechanical lever or handle

Definitions

  • the invention relates to a device for coupling and decoupling an equipment or a tool to an arrow of a civil engineering machine and / or handling.
  • the document EP 0 273 828-B1 describes a quick coupling device for equipment of civil engineering and handling equipment, and in particular for excavator, loader or other equipment used in public works, forestry or handling.
  • This device has, however, the disadvantage that the hydraulic lock for maintaining the connection between the tool and the boom of the machine is likely to yield in the case of a hydraulic failure.
  • EP 0.594.486-B1 discloses a quick coupler device for civil engineering and handling equipment avoiding the use of a hydraulic power circuit for locking.
  • This device is satisfactory and provides an automatic lock and automatic play catch.
  • These quick fasteners of known type include an interface intended to remain attached to the civil engineering or handling machine, and an interface intended to remain attached to the tool.
  • couplers have been provided to be mounted at the boom end of public works or civil engineering machinery. These couplers comprise links to the boom of the civil engineering or public works machine, and an adjustable interface for entering the axes of a tool or equipment.
  • the seizure of the axes of a tool or equipment is effected by two hooks which deviate from one another by making an input by the interior space to the axes of the tool or the tool. 'equipment.
  • a first object of the invention is to provide a new coupling device allowing a change of equipment or tool without being linked to a particular supplier.
  • a second object of the invention is to provide a security for holding the tool or equipment on the boom of the machine during work.
  • a third object of the invention is to allow the release and removal of a tool or equipment even in case of hydraulic failure of the civil engineering or handling machine to which the tool is intended.
  • the document WO 2007/038960 A1 discloses a quick coupling safety device, the main component of which is a small threaded shaft, whose two loose and unthreaded ends are mounted in two bearings.
  • a non-threaded end of the small threaded shaft is secured to a hexagonal nut, which prevents its axial movement, but not its rotation.
  • the other non-threaded end of the small shaft, turning crazy in its bearing, is connected to a toothed wheel.
  • the axial connection between the toothed wheel and the other non-threaded end of the small threaded shaft is provided by detachable means for releasing the small threaded shaft for maintenance.
  • the toothed wheel is driven by another toothed wheel of smaller diameter, thus constituting a speed reducer, actuated by an electric motor, hydraulic or pneumatic.
  • a speed reducer actuated by an electric motor, hydraulic or pneumatic.
  • the bearing on the other end of the small threaded shaft is on a support secured to a horizontal plate welded to two vertical plates. These vertical plates are welded to another top horizontal plate and another lower horizontal plate; these vertical plates thus constitute the framework of the quick coupling device.
  • These vertical dishes are finally vertically connected by the support plate of the bearing, in which the end of the small threaded shaft rotates.
  • the small threaded shaft rotates in a nut consisting of a single tapered parallelepiped casing.
  • This nut is secured to two vertical plates forming inferiorly movable hooks.
  • Each lower plate forming a movable hook is provided with a flat vertical surface sliding on a surface of a fixed vertical plate of the coupling device, with a horizontal surface sliding on a surface of a fixed horizontal plate of the device. coupling, and another horizontal surface sliding on another surface of a fixed horizontal plate of the coupling device.
  • the nut can only translate along the small threaded shaft, without rotating about the axis of the threaded small shaft, being welded along its vertical side surfaces to the vertical plates that form the slidingly movable hooks.
  • the small threaded shaft rotates only around its own axis and is not subject to translational motion. On the contrary, the nut is subjected to the translation movement without turning, moving in this way the movable hooks to bring them in the attachment position of the axes of the tool.
  • the movement of the nut on the small threaded shaft is irreversible, because it moves in both directions only when the small threaded shaft rotates in the direction conjugated to that of the movement of the nut: for example a clockwise rotation of the nut.
  • small threaded shaft causes a advancement of the nut, while the counterclockwise rotation of the small threaded shaft causes a withdrawal of the nut.
  • the irreversibility of the device is related to the operation of the small threaded shaft axially moving the nut in which it rotates.
  • the sliding stress between the vertical surfaces of the nut and the internal surfaces of the fixed vertical plates of the coupling device transmits the forces to the fixed structure of the coupling device.
  • Unexpected detachments of the tool of the coupling device are impossible because of the presence of the nut which does not allow unscrewing of the small threaded shaft secured to the nut screw 16, thereby avoiding the unexpected opening of movable hooks.
  • a fourth object of the invention is to provide a new improved coupling device of simple and economical construction, compact, short, light and compact, to take different types of buckets or tools, in the normal direction working, but also to take them in the opposite direction, in position called chouleur or hilling.
  • the invention relates to a device for coupling and decoupling an equipment or a tool to an arrow of a civil engineering machine and / or handling, comprising a body carrying an actuator assembly for moving a first hook, preferably movable, bringing it closer or away from at least a second hook, preferably fixed, to take or release the tool or equipment, wherein the actuator assembly includes a dual-control displacement mechanism so to use a command in case of failure of the other command, wherein the first command of the actuator assembly is a mechanical drive with manual drive of the moving mechanism, and wherein the second command of the actuator assembly is a command motorized mechanism of the displacement mechanism, characterized by mounting in alignment of the manual drive mechanical control, the movement mechanism and the motor control ed.
  • a coupling and decoupling device comprises a body 1 consisting of a central portion 100 of base and two side lugs 1a breakthroughs of several passages 1b, 1c, for axes not shown mounting on an arrow of civil engineering machine or public works not shown.
  • Each end 1f thick flange 1e is shaped fixed hook 1f.
  • the device also comprises an actuator assembly 2 mounted integral with the base 100 of the body 1 and extending longitudinally and parallel to the base 100 of the body 1.
  • This actuator assembly 2 is intended to actuate a double-controlled displacement mechanism 3.
  • the first control of the displacement mechanism 3 is preferably a mechanical drive 4 with manual drive mounted at the end of the displacement mechanism 3, while the second control of the displacement mechanism 3 is preferably a motorized drive also mounted at the end of the mechanism. 3 of displacement.
  • the first mechanical drive 4 with manual drive is preferably a control adapted to be actuated by a tool or a key or equivalent means.
  • control 4 comprises a terminal conformation 4a adapted to be driven by a key-type tool or an equivalent means, for example a crank.
  • the second motorized control can be an electric motor control, but is preferably a control comprising a motor driven by a fluid, preferably a hydraulic motor directly mounted at the end of the displacement mechanism and coaxially with this movement mechanism. .
  • the displacement mechanism 3 is preferably a screw-actuated translation mechanism, advantageously constituted by a central screw 3 of large diameter cooperating with a nut 6 having a movable hook-shaped end 6a.
  • the large diameter central screw 3 is mounted in appropriate bearings, or in bearings 3a, 3b.
  • the central screw 3 of large diameter is adapted to be rotated in one direction or the other, either by the manual control 4 and its conformation 4a, or by the motorized control 5, preferably consisting of a hydraulic motor 5 fed by two hydraulic lines 5a, 5b.
  • the approximation or removal of the fixed hooks 1f and mobile 6a can be obtained simply and ergonomically by either actuating the hydraulic motor 5, or by using the manual control 4, in both directions rotation can be used.
  • the preferred embodiment of the invention has several advantages.
  • the device in case of hydraulic failure, the device remains in its state without any modification, so that the coupling or decoupling is always ensured and maintained according to the chosen position in which the device is located.
  • the device according to the invention can be adapted to a wide range of tools, because the length of the central screw 3 of large diameter can be chosen to cover a large amplitude of movement, while the opening of hooks 1f and 6a can be chosen according to an opening taper allowing the insertion of a wide range of diameters of axes of tools or equipment.
  • Hydraulic hoses 5a, 5b are intended to be connected to the hydraulic power circuit of a civil engineering machine and / or handling not shown.
  • a casing 8 is provided in the upper part to protect the hydraulic motor 5, while a thick sheet 9 is provided in the lower part for the fairing of the hydraulic motor 5, thereby providing protection for the hydraulic motor 5.
  • front inner side surfaces of the two thick flanges 1e laterally protect the hydraulic motor 5 during work.
  • a deflector 101 of protection may finally be provided in the lower part of the front to protect the remaining accessible portion of the hydraulic motor 5.
  • the sheet 9 of large thickness is also provided to guide a not shown mounting axis of a not shown equipment or tool and to prevent the lateral bending inward of the fixed hooks 1f, ensuring their against-support and maintaining their gap during work.
  • the rear internal lateral surfaces of the two thick flanges 1e guide the movable hook 6a, ensuring its counter-support during work, while the lower edges of the two thick flanges 1e allow to guide a not shown mounting axis of a piece of equipment or tool not shown.
  • the hydraulic hoses 5a, 5b are connected to the hydraulic power circuit of the civil engineering machine and / or handling not shown in detail.
  • the hydraulic motor 5 is mounted by means of four fastening screws 5c to the body 1 of the device, so as to position the hydraulic motor 5 between the two fixed hooks 1f, thus ensuring the protection of the hydraulic motor 5 on each side by means of the thick plates 1e in which the hooks 1f are cut.
  • the manual control conformation 4a 4 of the central screw 3 of large diameter is preferably located on the opposite side to the hydraulic motor 5 relative to the central screw 3 of large diameter, and coaxially to their alignment.
  • the centers of the fixed hooks 1f and mobile 6a are preferably aligned parallel to the alignment of the manual control conformation 4a 4, the central screw 3 of large diameter and hydraulic motor 5, so as to pass the parallel efforts by the central screw 3 of large diameter.
  • the lower edges of the two thick flanges 1e for guiding an unrepresented mounting shaft of an equipment or tool not shown have the same spacing as the fixed hooks 1f, thus avoiding lateral force or slippage during work or docking equipment or tool not shown.
  • FIG. 3 a device according to the invention is shown in position of docking by insertion in the space between two axes 10a, 10b of the attachment portion 11 of a tool or equipment of civil engineering or handling.
  • the device according to the invention is compatible with different spacings or distances of the axes 10a, 10b and different bucket attachment parts 11 by the addition of diabolos 102a on the axis 10a and 102b on the axis 10b, to adapt them to the dimensions of the hooks 1f.
  • the fixed hooks 1f and movable 6a moved closer to each other by a distance less than the spacing of the axes 10a, 10b have conformations that release a space allowing the insertion of the beam 103 represented in dotted lines, or a reinforcement structure 104 of a bucket or similar tool.
  • the hydraulic motor 5 is then actuated in a direction corresponding to the distance of the fixed hooks 1f and mobile 6a to finally reach the position of the figure 4 .
  • the calibration valve of the hydraulic motor 5 opens and the hydraulic motor 5 s 'stop and stop.
  • the manual control 4 can be used, and this safely.
  • the only location where the hydraulic motor 5 is possibly not protected corresponds to the direction of insertion of the hydraulic motor 5 for mounting with screws 5c.
  • the axis diameters 10a may be different from the axis diameters 10b and finally the form released between the fixed hooks 1f and the slider 6 of the movable hook 6a allow in combination to take the bucket in the normal direction of work, but also to take it in the other direction, in position said chouleur or ridging
  • the approximation of the hooks serves to release the tool or equipment, while the distance of the hooks is used to take the tool or equipment.
  • the invention also covers the solution known as "grasping the outside of the axes", which is less widespread than the embodiment described, because of its larger size.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Load-Engaging Elements For Cranes (AREA)
  • Feeding Of Workpieces (AREA)
  • Actuator (AREA)
  • Shovels (AREA)

Abstract

The device has a body (1) holding an actuator assembly (2) for displacing a mobile hook (6a) by moving closer to or away from a fixed hook (1f) for gripping or releasing a tool of an equipment. The assembly has a displacement mechanism (3) with double control for utilization of a control in case of failure of another control. The former control is a mechanical control (4) with manual driving of the mechanism, and the latter control is a motorized control i.e. hydraulic motor (5), of the mechanism. The mechanism and the motorized control are assembled by aligning the mechanical control.

Description

L'invention concerne un dispositif de couplage et découplage d'un équipement ou d'un outil à une flèche de machine de génie civil et/ou de manutention.The invention relates to a device for coupling and decoupling an equipment or a tool to an arrow of a civil engineering machine and / or handling.

Le document EP 0 273 828-B1 décrit un dispositif d'attache rapide pour équipement d'engin de génie civil et de manutention, et notamment pour des équipements de pelle hydraulique, de chargeur ou autre utilisé en travaux publics, forestage ou manutention.The document EP 0 273 828-B1 describes a quick coupling device for equipment of civil engineering and handling equipment, and in particular for excavator, loader or other equipment used in public works, forestry or handling.

Ce dispositif présente, cependant, l'inconvénient selon lequel le verrou hydraulique destiné à assurer le maintien de la liaison entre l'outil et la flèche de la machine est susceptible de céder dans le cas d'une défaillance hydraulique.This device has, however, the disadvantage that the hydraulic lock for maintaining the connection between the tool and the boom of the machine is likely to yield in the case of a hydraulic failure.

Le document EP 0.594.486-B1 décrit un dispositif d'attache rapide pour équipement d'engin de génie civil et de manutention évitant l'utilisation d'un circuit hydraulique de puissance pour le verrouillage.The document EP 0.594.486-B1 discloses a quick coupler device for civil engineering and handling equipment avoiding the use of a hydraulic power circuit for locking.

Ce dispositif donne satisfaction et permet d'obtenir un verrouillage automatique et un rattrapage de jeu automatique.This device is satisfactory and provides an automatic lock and automatic play catch.

Ces dispositifs d'attache rapide de type connu comportent une interface destinée à demeurer solidaire de la machine de génie civil ou de manutention, et une interface destinée à rester solidaire de l'outil.These quick fasteners of known type include an interface intended to remain attached to the civil engineering or handling machine, and an interface intended to remain attached to the tool.

Ces dispositions présentent l'inconvénient de nécessiter une paire d'interfaces spécifiques et de prévoir un parc d'équipements ou d'outils portant des interfaces compatibles avec l'interface solidaire de la machine de génie civil ou de travaux publics.These provisions have the disadvantage of requiring a pair of specific interfaces and to provide a fleet of equipment or tools bearing interfaces compatible with the interface of the civil engineering machine or public works.

Pour remédier à cet inconvénient, des coupleurs ont été prévus pour être montés à l'extrémité de flèche de machine de travaux publics ou de génie civil. Ces coupleurs comportent des liaisons à la flèche de la machine de génie civil ou de travaux publics, et une interface ajustable permettant de saisir les axes d'un outil ou d'un équipement.To overcome this drawback, couplers have been provided to be mounted at the boom end of public works or civil engineering machinery. These couplers comprise links to the boom of the civil engineering or public works machine, and an adjustable interface for entering the axes of a tool or equipment.

Généralement, la saisie des axes d'un outil ou d'un équipement s'effectue par deux crochets qui s'écartent l'un de l'autre en effectuant une saisie par l'espace intérieur aux axes de l'outil ou de l'équipement.Generally, the seizure of the axes of a tool or equipment is effected by two hooks which deviate from one another by making an input by the interior space to the axes of the tool or the tool. 'equipment.

Cette solution permet d'obtenir un montage facile, rapide et sûr pour les changements d'outils, en évitant de fixer à demeure sur l'outil ou sur l'équipement une interface spécifique à un fournisseur particulier.This solution makes it easy, fast and safe to install tool changes, avoiding the need for a specific vendor-specific interface on the tool or equipment.

Un premier but de l'invention est de fournir un nouveau dispositif de couplage permettant un changement d'équipement ou d'outil sans être lié à un fournisseur particulier.A first object of the invention is to provide a new coupling device allowing a change of equipment or tool without being linked to a particular supplier.

Un deuxième but de l'invention est de fournir une sécurité de maintien de l'outil ou de l'équipement sur la flèche de la machine en cours de travail.A second object of the invention is to provide a security for holding the tool or equipment on the boom of the machine during work.

Un troisième but de l'invention est de permettre le dégagement et l'enlèvement d'un outil ou d'un équipement même en cas de panne hydraulique de la machine de génie civil ou de manutention à laquelle l'outil est destiné.A third object of the invention is to allow the release and removal of a tool or equipment even in case of hydraulic failure of the civil engineering or handling machine to which the tool is intended.

Le document WO 2007/038960 A1 décrit un dispositif de sécurité d'accouplement rapide, dont le composant principal est un petit arbre fileté, dont les deux extrémités folles et non filetées sont montées dans deux paliers. Un embout non fileté du petit arbre fileté est solidaire d'un écrou hexagonal, qui évite son mouvement axial, mais non sa rotation. L'autre embout non fileté du petit arbre, tournant fou dans son palier, est relié à une roue dentée. Le raccordement axial entre la roue dentée et l'autre embout non fileté du petit arbre fileté est assuré par des moyens détachables permettant de libérer le petit arbre fileté pour maintenance. La roue dentée est mue par une autre roue dentée d'un plus petit diamètre, en constituant ainsi un réducteur de vitesse, actionné par un moteur électrique, hydraulique ou pneumatique. En cas de panne du système qui actionne le réducteur de vitesse, il est possible d'actionner manuellement le système de sûreté du dispositif d'accouplement rapide, à l'aide d'une clé appropriée appliquée sur l'écrou hexagonal du petit arbre fileté. Le palier de l'autre extrémité du petit arbre fileté est sur un support solidaire d'un plat horizontal soudé à deux plats verticaux. Ces plats verticaux sont soudés à un autre plat horizontal supérieur et à un autre plat horizontal inferieur ; ces plats verticaux constituent ainsi l'ossature du dispositif d'accouplement rapide. Ces plats verticaux sont finalement reliés verticalement par le plat d'appui du palier, dans lequel l'extrémité du petit arbre fileté tourne. Le petit arbre fileté tourne dans un écrou composé d'un unique boîtier parallélépipédique taraudé. Cet écrou est solidaire de deux plats verticaux formant inférieurement les crochets mobiles. Chaque plat formant inférieurement un crochet mobile est pourvu d'une surface verticale plate coulissant sur une surface d'un plat vertical fixe du dispositif d'accouplement, d'une surface horizontale coulissant sur une surface d'un plat horizontal fixe du dispositif d'accouplement, et d'une autre surface horizontale coulissant sur une autre surface d'un plat horizontal fixe du dispositif d'accouplement. L'écrou peut seulement effectuer un mouvement de translation le long du petit arbre fileté, sans tourner autour de l'axe du petit arbre fileté, en étant soudé le long de ses surfaces verticales latérales aux plats verticaux qui forment les crochets mobiles astreints à coulisser sur les surfaces verticales des plats verticaux fixes du dispositif d'accouplement. Le petit arbre fileté tourne seulement autour de son propre axe et n'est pas soumis au mouvement de translation. Au contraire, l'écrou est soumis au mouvement de translation sans tourner, en déplaçant de cette façon les crochets mobiles pour les amener en position d'accrochage des axes de l'outil. Le mouvement de l'écrou sur le petit arbre fileté est irréversible, parce qu'il se déplace dans les deux sens seulement quand le petit arbre fileté tourne dans le sens conjugué à celui du mouvement de l'écrou : par exemple une rotation horaire du petit arbre fileté provoque un avancement de l'écrou, tandis que la rotation antihoraire du petit arbre fileté provoque un retrait de l'écrou. Par conséquent, l'irréversibilité du dispositif est lié au fonctionnement du petit arbre fileté déplaçant axialement l'écrou dans lequel il tourne. La contrainte de coulissement entre les surfaces verticales de l'écrou, et les surfaces internes des plats verticaux fixes du dispositif d'accouplement transmet les efforts à la structure fixe du dispositif d'accouplement. Les détachements inattendus de l'outil du dispositif d'accouplement sont impossibles en raison de la présence de l'écrou qui ne permet pas un dévissage du petit arbre fileté solidarisé à la vis 16 d'écrou, en évitant ainsi l'ouverture inattendue des crochets mobiles.The document WO 2007/038960 A1 discloses a quick coupling safety device, the main component of which is a small threaded shaft, whose two loose and unthreaded ends are mounted in two bearings. A non-threaded end of the small threaded shaft is secured to a hexagonal nut, which prevents its axial movement, but not its rotation. The other non-threaded end of the small shaft, turning crazy in its bearing, is connected to a toothed wheel. The axial connection between the toothed wheel and the other non-threaded end of the small threaded shaft is provided by detachable means for releasing the small threaded shaft for maintenance. The toothed wheel is driven by another toothed wheel of smaller diameter, thus constituting a speed reducer, actuated by an electric motor, hydraulic or pneumatic. In case of failure of the system which actuates the speed reducer, it is possible to manually operate the safety system of the quick coupling device, using a suitable key applied to the hexagonal nut of the small threaded shaft . The bearing on the other end of the small threaded shaft is on a support secured to a horizontal plate welded to two vertical plates. These vertical plates are welded to another top horizontal plate and another lower horizontal plate; these vertical plates thus constitute the framework of the quick coupling device. These vertical dishes are finally vertically connected by the support plate of the bearing, in which the end of the small threaded shaft rotates. The small threaded shaft rotates in a nut consisting of a single tapered parallelepiped casing. This nut is secured to two vertical plates forming inferiorly movable hooks. Each lower plate forming a movable hook is provided with a flat vertical surface sliding on a surface of a fixed vertical plate of the coupling device, with a horizontal surface sliding on a surface of a fixed horizontal plate of the device. coupling, and another horizontal surface sliding on another surface of a fixed horizontal plate of the coupling device. The nut can only translate along the small threaded shaft, without rotating about the axis of the threaded small shaft, being welded along its vertical side surfaces to the vertical plates that form the slidingly movable hooks. on the vertical surfaces of the vertical fixed plates of the coupling device. The small threaded shaft rotates only around its own axis and is not subject to translational motion. On the contrary, the nut is subjected to the translation movement without turning, moving in this way the movable hooks to bring them in the attachment position of the axes of the tool. The movement of the nut on the small threaded shaft is irreversible, because it moves in both directions only when the small threaded shaft rotates in the direction conjugated to that of the movement of the nut: for example a clockwise rotation of the nut. small threaded shaft causes a advancement of the nut, while the counterclockwise rotation of the small threaded shaft causes a withdrawal of the nut. Therefore, the irreversibility of the device is related to the operation of the small threaded shaft axially moving the nut in which it rotates. The sliding stress between the vertical surfaces of the nut and the internal surfaces of the fixed vertical plates of the coupling device transmits the forces to the fixed structure of the coupling device. Unexpected detachments of the tool of the coupling device are impossible because of the presence of the nut which does not allow unscrewing of the small threaded shaft secured to the nut screw 16, thereby avoiding the unexpected opening of movable hooks.

Un quatrième but de l'invention est de fournir un nouveau dispositif de couplage perfectionné, de construction simple et économique, compact, court, léger et d'encombrement réduit, permettant de prendre différents types de godets ou d'outils, dans le sens normal de travail, mais aussi de les prendre dans l'autre sens, en position dite chouleur ou buttage.A fourth object of the invention is to provide a new improved coupling device of simple and economical construction, compact, short, light and compact, to take different types of buckets or tools, in the normal direction working, but also to take them in the opposite direction, in position called chouleur or hilling.

L'invention a pour objet un dispositif de couplage et découplage d'un équipement ou d'un outil à une flèche de machine de génie civil et/ou de manutention, comportant un corps portant un ensemble actionneur pour déplacer un premier crochet, de préférence mobile, en le rapprochant ou en l'éloignant d'au moins un deuxième crochet, de préférence fixe, pour prendre ou relâcher l'outil ou l'équipement, dans lequel l'ensemble actionneur comporte un mécanisme de déplacement à double commande de manière à utiliser une commande en cas de défaillance de l'autre commande, dans lequel la première commande de l'ensemble actionneur est une commande mécanique à entraînement manuel du mécanisme de déplacement, et dans lequel la deuxième commande de l'ensemble actionneur est une commande motorisée du mécanisme de déplacement, caractérisé par un montage en alignement de la commande mécanique à entraînement manuel, du mécanisme de déplacement et de la commande motorisée.The invention relates to a device for coupling and decoupling an equipment or a tool to an arrow of a civil engineering machine and / or handling, comprising a body carrying an actuator assembly for moving a first hook, preferably movable, bringing it closer or away from at least a second hook, preferably fixed, to take or release the tool or equipment, wherein the actuator assembly includes a dual-control displacement mechanism so to use a command in case of failure of the other command, wherein the first command of the actuator assembly is a mechanical drive with manual drive of the moving mechanism, and wherein the second command of the actuator assembly is a command motorized mechanism of the displacement mechanism, characterized by mounting in alignment of the manual drive mechanical control, the movement mechanism and the motor control ed.

Selon d'autres caractéristiques alternatives de l'invention :

  • les crochets fixes et mobile sont de préférence disposés parallèlement à l'alignement de la commande mécanique à entraînement manuel, du mécanisme de déplacement et de la commande motorisée., de manière à faire passer les efforts parallèlement par le mécanisme de déplacement.
  • le mécanisme de déplacement comporte une vis centrale apte à être entraînée à une extrémité par un moteur et à l'autre extrémité par une conformation destinée à coopérer avec un outil du genre clé ou équivalent.
  • le dispositif comporte deux flasques épais de guidage d'un axe de montage d'un équipement ou outil dont les extrémités sont conformées en crochets fixes pour l'autre axe de montage de l'équipement ou outil.
  • le dispositif peut être un dispositif de saisie par l'intérieur d'un axe de montage d'un équipement ou outil et d'un autre axe de montage de l'équipement ou outil.
  • le dispositif peut être un dispositif de saisie par l'extérieur d'un axe de montage d'un équipement ou outil et d'un autre axe de montage de l'équipement ou outil.
  • la commande motorisée du mécanisme de déplacement est protégée en partie supérieure par un carter ou une tôle de forte épaisseur prévue pour son carénage, ainsi que latéralement par deux crochets fixes.
  • la première commande mécanique à entraînement manuel est disposée du côté du premier crochet de préférence mobile et la deuxième commande motorisée du mécanisme de déplacement est disposée du côté du deuxième crochet de préférence fixe.
  • la deuxième commande de l'ensemble actionneur est une commande à moteur entraîné par un fluide, de préférence un moteur hydraulique.
According to other alternative features of the invention:
  • the fixed and movable hooks are preferably arranged parallel to the alignment of the manual drive mechanical control, the displacement mechanism and the motorized control, so as to pass the forces parallel by the movement mechanism.
  • the displacement mechanism comprises a central screw adapted to be driven at one end by a motor and at the other end by a conformation intended to cooperate with a tool of the key or equivalent kind.
  • the device comprises two thick flanges guiding a mounting axis of an equipment or tool whose ends are shaped in fixed hooks for the other axis of mounting of the equipment or tool.
  • the device can be an input device from the inside of a mounting axis of an equipment or tool and another axis of mounting the equipment or tool.
  • the device can be an input device from the outside of a mounting axis of an equipment or tool and another axis of mounting of the equipment or tool.
  • the motorized control of the movement mechanism is protected in the upper part by a housing or a thick sheet provided for its fairing, and laterally by two fixed hooks.
  • the first manual drive mechanical control is arranged on the side of the first preferably movable hook and the second motorized control of the moving mechanism is arranged on the side of the second preferably fixed hook.
  • the second control of the actuator assembly is a motor drive driven by a fluid, preferably a hydraulic motor.

L'invention sera mieux comprise grâce à la description qui va suivre donnée à titre d'exemple non limitatif en référence aux dessins annexés dans lesquels :

  • La figure 1 représente schématiquement une vue en élévation latérale avec coupe selon la ligne I-I de la figure 2 d'un dispositif selon l'invention.
  • La figure 2 représente schématiquement une vue de face avec coupe selon la ligne II-II de la figure 1 d'un dispositif selon l'invention.
  • La figure 3 représente schématiquement un outil ou équipement de génie civil avec un dispositif selon l'invention en position d'accostage des axes de maintien d'un outil ou équipement de génie civil.
  • La figure 4 représente schématiquement un outil ou équipement de génie civil avec un dispositif selon l'invention en position de préhension et de maintien sur une flèche de machine de génie civil ou de travaux publics non représentée.
The invention will be better understood from the following description given by way of nonlimiting example with reference to the accompanying drawings in which:
  • The figure 1 schematically represents a side elevational view with section along the line II of the figure 2 of a device according to the invention.
  • The figure 2 schematically represents a front view with section along the line II-II of the figure 1 of a device according to the invention.
  • The figure 3 schematically represents a tool or civil engineering equipment with a device according to the invention in the docking position of the holding axes of a tool or civil engineering equipment.
  • The figure 4 schematically represents a tool or civil engineering equipment with a device according to the invention in the gripping position and holding on an arrow of civil engineering machine or public works not shown.

En référence aux figures 1 à 4, les éléments identiques ou fonctionnellement équivalents sont repérés par des chiffres de référence identiques.With reference to Figures 1 to 4 identical or functionally equivalent elements are identified by identical reference numerals.

Sur la figure 1, un dispositif de couplage et de découplage selon l'invention comporte un corps 1 constitué d'une partie centrale 100 d'embase et de deux oreilles latérales 1a percées de plusieurs passages 1b, 1c, pour des axes non représentés de montage sur une flèche de machine de génie civil ou de travaux publics non représentée.On the figure 1 , a coupling and decoupling device according to the invention comprises a body 1 consisting of a central portion 100 of base and two side lugs 1a breakthroughs of several passages 1b, 1c, for axes not shown mounting on an arrow of civil engineering machine or public works not shown.

Sur la partie centrale 100 d'embase sont également fixés deux flasques épais 1e.On the central portion 100 of base are also fixed two thick flanges 1e.

Chaque extrémité 1f de flasque épais 1e est conformée en crochet fixe 1f.Each end 1f thick flange 1e is shaped fixed hook 1f.

Le dispositif comporte également un ensemble actionneur 2 monté solidaire de l'embase 100 du corps 1 et s'étendant longitudinalement et parallèlement à l'embase 100 du corps 1.The device also comprises an actuator assembly 2 mounted integral with the base 100 of the body 1 and extending longitudinally and parallel to the base 100 of the body 1.

Cet ensemble actionneur 2 est destiné à actionner un mécanisme 3 de déplacement à double commande.This actuator assembly 2 is intended to actuate a double-controlled displacement mechanism 3.

La première commande du mécanisme 3 de déplacement est de préférence une commande mécanique 4 à entraînement manuel montée en bout du mécanisme 3 de déplacement, tandis que la deuxième commande du mécanisme 3 de déplacement est de préférence une commande 5 motorisée également montée en bout du mécanisme 3 de déplacement.The first control of the displacement mechanism 3 is preferably a mechanical drive 4 with manual drive mounted at the end of the displacement mechanism 3, while the second control of the displacement mechanism 3 is preferably a motorized drive also mounted at the end of the mechanism. 3 of displacement.

La première commande mécanique 4 à entraînement manuel est de préférence une commande apte à être actionnée par un outil ou une clé ou un moyen équivalent.The first mechanical drive 4 with manual drive is preferably a control adapted to be actuated by a tool or a key or equivalent means.

A cet effet, la commande 4 comporte une conformation terminale 4a apte à être entraînée par un outil du genre clé ou ou un moyen équivalent, par exemple une manivelle.For this purpose, the control 4 comprises a terminal conformation 4a adapted to be driven by a key-type tool or an equivalent means, for example a crank.

La deuxième commande 5 motorisée peut être une commande à moteur électrique, mais est de préférence une commande comportant un moteur entraîné par un fluide, de préférence un moteur hydraulique 5 directement monté en bout du mécanisme 3 de déplacement et coaxialement à ce mécanisme 3 de déplacement.The second motorized control can be an electric motor control, but is preferably a control comprising a motor driven by a fluid, preferably a hydraulic motor directly mounted at the end of the displacement mechanism and coaxially with this movement mechanism. .

Le mécanisme 3 de déplacement est de préférence un mécanisme de translation actionné par vissage, constitué avantageusement par une vis centrale 3 de gros diamètre coopérant avec un écrou 6 présentant une extrémité en forme de crochet mobile 6a.The displacement mechanism 3 is preferably a screw-actuated translation mechanism, advantageously constituted by a central screw 3 of large diameter cooperating with a nut 6 having a movable hook-shaped end 6a.

La vis centrale 3 de gros diamètre est montée dans des paliers appropriés, ou dans des roulements 3a, 3b.The large diameter central screw 3 is mounted in appropriate bearings, or in bearings 3a, 3b.

Ainsi, la vis centrale 3 de gros diamètre est apte à être entraînée en rotation dans un sens ou dans l'autre, soit par la commande manuelle 4 et sa conformation 4a, soit par la commande motorisée 5, constituée de préférence par un moteur hydraulique 5 alimenté par deux conduites hydrauliques 5a, 5b.Thus, the central screw 3 of large diameter is adapted to be rotated in one direction or the other, either by the manual control 4 and its conformation 4a, or by the motorized control 5, preferably consisting of a hydraulic motor 5 fed by two hydraulic lines 5a, 5b.

Lorsque la vis centrale 3 de gros diamètre est entraînée par le moteur hydraulique 5 coaxial dans un premier sens de rotation, correspondant à l'écartement du crochet mobile 6a par rapport aux crochets fixes 1f, les crochets fixes 1f et mobile 6a peuvent s'écarter l'un de l'autre jusqu'à une course maximale correspondant à la préhension d'un outil ou d'un équipement non représenté.When the central screw 3 of large diameter is driven by the coaxial hydraulic motor 5 in a first direction of rotation, corresponding to the spacing of the movable hook 6a relative to the fixed hooks 1f, the fixed hooks 1f and mobile 6a can move away. from one another until a maximum stroke corresponding to the grip of a tool or equipment not shown.

Lorsque le sens du fluide hydraulique passant par les conduites hydrauliques 5a, 5b est inversé, les crochets fixes 1f et mobile 6a se rapprochent l'un de l'autre jusqu'à la position la plus rapprochée représentée à la figure 1.When the direction of the hydraulic fluid passing through the hydraulic lines 5a, 5b is reversed, the fixed hooks 1f and movable 6a approach each other to the nearest position shown in FIG. figure 1 .

Ainsi, grâce à l'invention, le rapprochement ou l'éloignement des crochets fixes 1f et mobile 6a peut être obtenu de manière simple et ergonomique soit par actionnement du moteur hydraulique 5, soit par utilisation de la commande manuelle 4, dans les deux sens de rotation utilisables.Thus, thanks to the invention, the approximation or removal of the fixed hooks 1f and mobile 6a can be obtained simply and ergonomically by either actuating the hydraulic motor 5, or by using the manual control 4, in both directions rotation can be used.

Le mode préféré de réalisation de l'invention présente plusieurs avantages.The preferred embodiment of the invention has several advantages.

Du fait que le système par vissage de l'écrou 6 portant un crochet mobile 6a est un système irréversible, les efforts exercés par le travail de l'outil sur le crochet mobile 6a ne provoquent pas le déplacement accidentel du crochet mobile 6a, en évitant ainsi tout risque de dégagement indésirable de l'outil ou équipement de génie civil ou de manutention.Because the system by screwing the nut 6 carrying a movable hook 6a is an irreversible system, the forces exerted by the work of the tool on the movable hook 6a do not cause the accidental movement of the movable hook 6a, avoiding thus any risk of undesirable release of the tool or equipment of civil engineering or handling.

Egalement, en cas de défaillance hydraulique, le dispositif reste dans son état sans aucune modification, de sorte que le couplage ou le découplage est toujours assuré et maintenu selon la position choisie dans laquelle se trouve le dispositif.Also, in case of hydraulic failure, the device remains in its state without any modification, so that the coupling or decoupling is always ensured and maintained according to the chosen position in which the device is located.

En cas de défaillance hydraulique, dans le cas où on souhaite changer de mode de préhension ou de découplage de l'outil, il est toujours possible d'agir sur le dispositif à l'aide de la commande manuelle 4, pour coupler ou découpler l'outil de la flèche de la machine, à laquelle l'outil ou équipement est destiné.In case of hydraulic failure, in the case where it is desired to change the gripping or decoupling mode of the tool, it is still possible to act on the device using the manual control 4, to couple or uncouple the tool of the arrow of the machine, to which the tool or equipment is intended.

Le fait de prévoir un moteur hydraulique 5 opérant par vissage en lieu et place de vérins ou d'actionneurs électriques ou hydrauliques linéaires ou rotatifs permet d'éviter le dégagement intempestif de l'outil ou équipement, en cas de rupture de liaison électrique ou de flexible hydraulique, ou permet d'éviter l'emploi de clapets de sécurité et de prévention contre les ruptures de flexibles hydrauliques.The fact of providing a hydraulic motor 5 operating by screwing instead of cylinders or actuators electric or hydraulic linear or rotary avoids the inadvertent release of the tool or equipment, in case of breakage of electrical connection or hydraulic hose, or avoids the use of safety valves and prevention against hydraulic hose breaks.

Etant donné que les moteurs hydrauliques présentent généralement de légères fuites internes, le couple résistant pouvant être opposé par un moteur hydraulique 5 à l'action de vissage exercée par une clé ou un outil sur l'extrémité 4a est faible, de sorte qu'il est toujours possible de coupler ou de découpler un équipement ou outil en agissant sur la rotation de la vis centrale 3 de gros diamètre.Since the hydraulic motors generally have slight internal leakage, the resistant torque that can be opposed by a hydraulic motor 5 to the screwing action exerted by a wrench or a tool on the end 4a is small, so that It is always possible to couple or uncouple an equipment or tool by acting on the rotation of the central screw 3 of large diameter.

Au contraire, dans le cas de vérins ou actionneurs hydrauliques de l'art antérieur, équipés de clapets de sécurité contre la rupture des flexibles, l'effort résistant engendré par le blocage du fluide hydraulique est trop important pour permettre un couplage et un découplage manuel sans intervention sur le circuit hydraulique ou sans risque d'endommagement des joints d'étanchéité hydrauliques des actionneurs correspondants.On the contrary, in the case of cylinders or hydraulic actuators of the prior art, equipped with safety valves against the rupture of the hoses, the resisting force generated by the blocking of the hydraulic fluid is too great to allow manual coupling and decoupling. without intervention on the hydraulic circuit or without risk of damage of the hydraulic seals of the corresponding actuators.

Ainsi, grâce à l'invention, une sécurité parfaite est apportée lors des opérations de couplage et de découplage d'un équipement ou d'un outil, ainsi que pendant le travail de cet équipement ou de cet outil, tout en permettant l'utilisation de vérins ou actionneurs hydrauliques, contrairement aux préjugés de l'homme du métier.Thus, thanks to the invention, perfect safety is provided during the coupling and decoupling operations of an equipment or a tool, as well as during the work of this equipment or tool, while allowing the use hydraulic cylinders or actuators, contrary to the prejudices of the skilled person.

En outre, le dispositif selon l'invention peut être adapté à une large gamme d'outils, du fait que la longueur de la vis centrale 3 de gros diamètre peut être choisie pour couvrir une grande amplitude de débattement, tandis que l'ouverture des crochets 1f et 6a peut être choisie selon une conicité d'ouverture permettant l'insertion d'une large gamme de diamètres d'axes d'outils ou d'équipements.
Des flexibles hydrauliques 5a, 5b sont destinés à être reliés au circuit de puissance hydraulique d'une machine de génie civil et/ou de manutention non représentée.In addition, the device according to the invention can be adapted to a wide range of tools, because the length of the central screw 3 of large diameter can be chosen to cover a large amplitude of movement, while the opening of hooks 1f and 6a can be chosen according to an opening taper allowing the insertion of a wide range of diameters of axes of tools or equipment.
Hydraulic hoses 5a, 5b are intended to be connected to the hydraulic power circuit of a civil engineering machine and / or handling not shown.

Un carter 8 est prévu en partie supérieure pour protéger le moteur hydraulique 5, tandis qu'une tôle 9 de forte épaisseur est prévue en partie inférieure pour le carénage du moteur hydraulique 5, en assurant ainsi la protection du moteur hydraulique 5.A casing 8 is provided in the upper part to protect the hydraulic motor 5, while a thick sheet 9 is provided in the lower part for the fairing of the hydraulic motor 5, thereby providing protection for the hydraulic motor 5.

En outre, les surfaces latérales internes avant des deux flasques épais 1e protègent latéralement le moteur hydraulique 5 en cours de travail.In addition, the front inner side surfaces of the two thick flanges 1e laterally protect the hydraulic motor 5 during work.

Un déflecteur 101 de protection peut enfin être prévu en partie inférieure avant pour protéger la partie restant accessible du moteur hydraulique 5.A deflector 101 of protection may finally be provided in the lower part of the front to protect the remaining accessible portion of the hydraulic motor 5.

La tôle 9 de forte épaisseur est également prévue pour guider un axe de montage non représenté d'un équipement ou outil non représenté et pour empêcher la flexion latérale vers l'intérieur des crochets fixes 1f, en assurant leur contre-appui et en maintenant leur écartement en cours de travail.The sheet 9 of large thickness is also provided to guide a not shown mounting axis of a not shown equipment or tool and to prevent the lateral bending inward of the fixed hooks 1f, ensuring their against-support and maintaining their gap during work.

Les surfaces latérales internes arrière des deux flasques épais 1e guident le crochet mobile 6a, en assurant son contre-appui en cours de travail, tandis que les bords inférieurs des deux flasques épais 1e permettent de guider un axe de montage non représenté d'un équipement ou outil non représenté.The rear internal lateral surfaces of the two thick flanges 1e guide the movable hook 6a, ensuring its counter-support during work, while the lower edges of the two thick flanges 1e allow to guide a not shown mounting axis of a piece of equipment or tool not shown.

Sur les figures 1 et 2, deux axes 7 sont engagés dans les passages 1b et 1c des deux oreilles 1a, pour fixer le dispositif selon l'invention à la flèche d'une machine de génie civil et/ou de manutention non représentée en détail.On the Figures 1 and 2 two axes 7 are engaged in the passages 1b and 1c of the two lugs 1a, for fixing the device according to the invention to the boom of a civil engineering machine and / or handling not shown in detail.

Les flexibles hydrauliques 5a, 5b sont reliés au circuit de puissance hydraulique de la machine de génie civil et/ou de manutention non représentée en détail.The hydraulic hoses 5a, 5b are connected to the hydraulic power circuit of the civil engineering machine and / or handling not shown in detail.

Le moteur hydraulique 5 est monté par l'intermédiaire de quatre vis 5c de solidarisation au corps 1 du dispositif, de manière à positionner le moteur hydraulique 5 entre les 2 crochets fixes 1f, en assurant ainsi la protection du moteur hydraulique 5 de chaque côté grâce aux tôles de forte épaisseur 1e dans lesquelles les crochets 1f sont découpés.The hydraulic motor 5 is mounted by means of four fastening screws 5c to the body 1 of the device, so as to position the hydraulic motor 5 between the two fixed hooks 1f, thus ensuring the protection of the hydraulic motor 5 on each side by means of the thick plates 1e in which the hooks 1f are cut.

La conformation 4a de commande manuelle 4 de la vis centrale 3 de gros diamètre est située de préférence du côté opposé au moteur 5 hydraulique par rapport à la vis centrale 3 de gros diamètre, et coaxialement à leur alignement.The manual control conformation 4a 4 of the central screw 3 of large diameter is preferably located on the opposite side to the hydraulic motor 5 relative to the central screw 3 of large diameter, and coaxially to their alignment.

Les centres des crochets fixes 1f et mobile 6a sont de préférence alignés parallèlement à l'alignement de la conformation 4a de commande manuelle 4, de la vis centrale 3 de gros diamètre et du moteur 5 hydraulique, de manière à faire passer les efforts parallèlement par la vis centrale 3 de gros diamètre.The centers of the fixed hooks 1f and mobile 6a are preferably aligned parallel to the alignment of the manual control conformation 4a 4, the central screw 3 of large diameter and hydraulic motor 5, so as to pass the parallel efforts by the central screw 3 of large diameter.

Le fait de passer les efforts par la vis centrale 3 de gros diamètre, et non par la structure comme pour le document W02007/038960A1 , permet d'avoir une partie mobile 6 plus compacte, et donc un dispositif plus court et plus résistant, moins encombrant et plus léger.The fact of passing the forces by the central screw 3 of large diameter, and not by the structure as for the document W02007 / 038960A1 , allows to have a mobile part 6 more compact, and therefore a device shorter and more resistant, less bulky and lighter.

Les bords inférieurs des deux flasques épais 1e de guidage d'un axe de montage non représenté d'un équipement ou outil non représenté présentent le même écartement que les crochets fixes 1f, en évitant ainsi un effort ou un glissement latéral en cours de travail ou d'accostage d'un équipement ou outil non représenté.The lower edges of the two thick flanges 1e for guiding an unrepresented mounting shaft of an equipment or tool not shown have the same spacing as the fixed hooks 1f, thus avoiding lateral force or slippage during work or docking equipment or tool not shown.

Sur la figure 3, un dispositif selon l'invention est représenté en position d'accostage par insertion dans l'espace compris entre deux axes 10a, 10b de la partie d'attache 11 d'un outil ou équipement de génie civil ou de manutention.On the figure 3 , a device according to the invention is shown in position of docking by insertion in the space between two axes 10a, 10b of the attachment portion 11 of a tool or equipment of civil engineering or handling.

Dans cette position, les crochets fixes 1f et mobile 6a sont rapprochés l'un de l'autre d'une distance inférieure à l'écartement des axes 10a, 10b.In this position, the fixed hooks 1f and mobile 6a are brought closer to each other by a distance less than the spacing of the axes 10a, 10b.

Le dispositif selon l'invention est compatible avec différents entraxes ou écartements des axes 10a, 10b et différentes parties d'attache 11 de godets par l'ajout de diabolos 102a sur l'axe 10a et 102b sur l'axe 10b, pour les adapter aux dimensions des crochets 1f.The device according to the invention is compatible with different spacings or distances of the axes 10a, 10b and different bucket attachment parts 11 by the addition of diabolos 102a on the axis 10a and 102b on the axis 10b, to adapt them to the dimensions of the hooks 1f.

Les crochets fixes 1f et mobile 6a rapprochés l'un de l'autre d'une distance inférieure à l'écartement des axes 10a, 10b présentent des conformations libérant un espace permettant l'insertion de la poutre 103 représentée en traits pointillés, ou d'une structure de renfort 104 d'un godet ou outil similaire.The fixed hooks 1f and movable 6a moved closer to each other by a distance less than the spacing of the axes 10a, 10b have conformations that release a space allowing the insertion of the beam 103 represented in dotted lines, or a reinforcement structure 104 of a bucket or similar tool.

On actionne ensuite le moteur hydraulique 5 dans un sens correspondant à l'éloignement des crochets fixes 1f et mobile 6a pour aboutir finalement à la position de la figure 4.The hydraulic motor 5 is then actuated in a direction corresponding to the distance of the fixed hooks 1f and mobile 6a to finally reach the position of the figure 4 .

Sur la figure 4, les deux crochets coniques 1f et 6a sont engagés par leurs bords tangents sur les axes 10a, 10b qu'ils maintiennent fermement.On the figure 4 , the two tapered hooks 1f and 6a are engaged by their tangent edges on the axes 10a, 10b that they hold firmly.

On peut prévoir sur ledit circuit hydraulique d'alimentation du moteur hydraulique 5 une soupape de tarage permettant de limiter l'effort exercé sur les axes 10a, 10b par les crochets de maintien 1f et 6a.It can be provided on said hydraulic supply circuit of the hydraulic motor 5 a setting valve to limit the force exerted on the axes 10a, 10b by the holding hooks 1f and 6a.

Lorsque l'effort d'écartement imposé par le vissage de la vis centrale 3 de gros diamètre dans l'écrou 6 devient trop important ou dépasse une limite prédéterminée, la soupape de tarage du moteur hydraulique 5 s'ouvre et le moteur hydraulique 5 s'arrête et s'immobilise.When the separation force imposed by the screwing of the central screw 3 of large diameter in the nut 6 becomes too large or exceeds a predetermined limit, the calibration valve of the hydraulic motor 5 opens and the hydraulic motor 5 s 'stop and stop.

Du fait que le système vis/écrou a été choisi pour obtenir l'irréversibilité de l'écrou 6 par rapport à la vis centrale 3 de gros diamètre, l'arrêt du moteur hydraulique 5 conduit simplement au maintien de la position et ne permet aucun desserrage ou aucun découplage de l'outil 11.Because the screw / nut system has been chosen to obtain the irreversibility of the nut 6 relative to the central screw 3 of large diameter, stopping the hydraulic motor 5 simply leads to the maintenance of the position and allows no loosening or no decoupling of the tool 11.

Dans le cas où un flexible hydraulique vient à se rompre, ou dans le cas où la soupape de tarage reste bloquée en position ouverte, il est possible de débloquer la vis centrale 3 de gros diamètre et l'écrou 6 par action sur la conformation 4a au moyen d'une clé ou d'un moyen équivalent.In the case where a hydraulic hose is broken, or in the case where the calibration valve remains locked in the open position, it is possible to release the central screw 3 of large diameter and the nut 6 by action on the conformation 4a by means of a key or equivalent means.

Ainsi, grâce au mécanisme de déplacement à double commande selon l'invention, il est toujours possible d'utiliser une commande en cas de défaillance de l'autre commande.Thus, thanks to the dual control displacement mechanism according to the invention, it is always possible to use a command in case of failure of the other command.

En cas de défaillance hydraulique, la commande manuelle 4 peut être utilisée, et ceci en toute sécurité.In case of hydraulic failure, the manual control 4 can be used, and this safely.

Le seul emplacement où le moteur hydraulique 5 n'est éventuellement pas protégé correspond au sens d'insertion du moteur hydraulique 5 pour son montage à l'aide des vis 5c.The only location where the hydraulic motor 5 is possibly not protected corresponds to the direction of insertion of the hydraulic motor 5 for mounting with screws 5c.

Cependant, en cas de travaux particulièrement difficiles ou dangereux, selon une variante non représentée de l'invention, on peut prévoir le capot additionnel 101 pour protéger l'extrémité distale du moteur hydraulique 5.However, in the case of particularly difficult or dangerous work, according to a not shown variant of the invention, it is possible to provide the additional cover 101 to protect the distal end of the hydraulic motor 5.

Le fait de prévoir les crochets fixes 1f de la même largeur sur toute leur longueur, ainsi que la possibilité de prendre différents diamètres d'axes 10a et 10b, les diamètres d'axes 10a pouvant être différents des diamètres d'axes 10b et enfin la forme dégageante entre les crochets fixes 1f et le coulisseau 6 du crochet mobile 6a permettent en combinaison de prendre le godet dans le sens normal de travail, mais aussi de le prendre dans l'autre sens, en position dite chouleur ou buttageThe fact of providing the fixed hooks 1f of the same width over their entire length, as well as the possibility of taking different diameters of axes 10a and 10b, the axis diameters 10a may be different from the axis diameters 10b and finally the form released between the fixed hooks 1f and the slider 6 of the movable hook 6a allow in combination to take the bucket in the normal direction of work, but also to take it in the other direction, in position said chouleur or ridging

L'invention décrite en référence à un mode de réalisation préféré de saisie par l'intérieur des axes ne lui est nullement limitée, mais couvre au contraire toute modification de forme et toute variante de réalisation définies dans le cadre des revendications annexées.The invention described with reference to a preferred embodiment of input from the inside of the axes is in no way limited thereto, but on the contrary covers any modification of form and any variant of embodiment defined in the context of the appended claims.

Dans ce mode de réalisation préféré décrit de saisie par l'intérieur des axes, le rapprochement des crochets sert à relâcher l'outil ou l'équipement, tandis que l'éloignement des crochets sert à prendre l'outil ou l'équipement.In this preferred embodiment of grasping the interior of the axes, the approximation of the hooks serves to release the tool or equipment, while the distance of the hooks is used to take the tool or equipment.

L'invention couvre cependant également la solution dite « saisie par l'extérieur des axes », moins répandue que le mode de réalisation décrit, à cause de son encombrement plus important.The invention, however, also covers the solution known as "grasping the outside of the axes", which is less widespread than the embodiment described, because of its larger size.

Dans cette solution de saisie par l'extérieur des axes, le rapprochement des crochets sert à prendre l'outil ou l'équipement, tandis que l'éloignement des crochets sert à relâcher l'outil ou l'équipement.In this solution of input from the outside of the axes, the approximation of the hooks is used to take the tool or equipment, while the distance of the hooks is used to release the tool or equipment.

Claims (9)

Dispositif de couplage et découplage d'un équipement ou d'un outil à une flèche de machine de génie civil et/ou de manutention, comportant un corps (1) portant un ensemble (2) actionneur pour déplacer un premier crochet (6a), de préférence mobile, en le rapprochant ou en l'éloignant d'au moins un deuxième crochet (1f), de préférence fixe, pour prendre ou relâcher l'outil ou l'équipement, dans lequel l'ensemble actionneur (2) comporte un mécanisme (3) de déplacement à double commande de manière à utiliser une commande (4 ou 5) en cas de défaillance de l'autre commande (5 ou 4), dans lequel la première commande (4) de l'ensemble actionneur (2) est une commande (4) mécanique à entraînement manuel du mécanisme (3) de déplacement, et dans lequel la deuxième commande (5) de l'ensemble actionneur (2) est une commande (5) motorisée du mécanisme (3) de déplacement, caractérisé par un montage en alignement de la commande (4) mécanique à entraînement manuel, du mécanisme (3) de déplacement et de la commande (5) motorisée.Device for coupling and uncoupling an equipment or a tool to an arrow of a civil engineering and / or handling machine, comprising a body (1) carrying an assembly (2) actuator for moving a first hook (6a), preferably movable, bringing it closer to or away from at least a second hook (1f), preferably fixed, to take or release the tool or equipment, wherein the actuator assembly (2) comprises a mechanism (3) of dual control movement so as to use a control (4 or 5) in case of failure of the other control (5 or 4), wherein the first control (4) of the actuator assembly (2 ) is a mechanical control (4) with manual drive of the movement mechanism (3), and wherein the second control (5) of the actuator assembly (2) is a motorized control (5) of the displacement mechanism (3). , characterized by an alignment arrangement of the manual drive mechanical control (4), the mechanism (3) for moving and motorized control (5). Dispositif selon la revendication 1, caractérisé par le fait que les crochets fixes (1f) et mobile (6a) sont de préférence disposés parallèlement à l'alignement de la commande (4) mécanique à entraînement manuel, du mécanisme (3) de déplacement et de la commande (5) motorisée., de manière à faire passer les efforts parallèlement par le mécanisme (3) de déplacement.Device according to claim 1, characterized in that the fixed (1f) and movable (6a) hooks are preferably arranged parallel to the alignment of the manual drive mechanical control (4), the movement mechanism (3) and the control (5) motor., so as to pass the parallel forces by the mechanism (3) displacement. Dispositif selon la revendication 1 ou 2, caractérisé par le fait que le mécanisme (3) de déplacement comporte une vis centrale (3) apte à être entraînée à une extrémité par un moteur (5) et à l'autre extrémité par une conformation (4a) destinée à coopérer avec un outil du genre clé ou équivalent.Device according to claim 1 or 2, characterized in that the mechanism (3) for moving comprises a central screw (3) adapted to be driven at one end by a motor (5) and at the other end by a conformation ( 4a) intended to cooperate with a tool of the key or equivalent kind. Dispositif selon la revendication 1 ou 2, caractérisé par le fait que le dispositif comporte deux flasques épais (1e) de guidage d'un axe de montage d'un équipement ou outil, dont les extrémités sont conformées en crochets fixes (1f) pour l'autre axe de montage de l'équipement ou outil.Device according to claim 1 or 2, characterized in that the device comprises two thick flanges (1e) for guiding a mounting axis of an equipment or tool, the ends of which are shaped as fixed hooks (1f) for other axis of assembly of the equipment or tool. Dispositif selon la revendication 1 ou 2, caractérisé par le fait que le dispositif est un dispositif de saisie par l'intérieur d'un axe (10a) de montage d'un équipement ou outil et d'un autre axe (10b) de montage de l'équipement ou outil.Device according to claim 1 or 2, characterized in that the device is a device for grasping the interior of an axis (10a) for mounting an equipment or tool and another axis (10b) for mounting the equipment or tool. Dispositif selon la revendication 1 ou 2, caractérisé par le fait que le dispositif est un dispositif de saisie par l'extérieur d'un axe de montage d'un équipement ou outil et d'un autre axe de montage de l'équipement ou outil.Device according to claim 1 or 2, characterized in that the device is an input device from the outside of a mounting axis of an equipment or tool and another axis of mounting the equipment or tool . Dispositif selon la revendication 1 ou 2, caractérisé par le fait que la commande (5) motorisée du mécanisme (3) de déplacement est protégée en partie supérieure par un carter (8) ou une tôle (9) de forte épaisseur prévue pour son carénage, ainsi que latéralement par deux crochets (1f) fixes.Device according to claim 1 or 2, characterized in that the motorized control (5) of the movement mechanism (3) is protected in the upper part by a casing (8) or a thick sheet (9) provided for its fairing. as well as laterally by two fixed hooks (1f). Dispositif selon la revendication 1 ou 2, caractérisé par le fait que la première commande (4) mécanique à entraînement manuel est disposée du côté du premier crochet (6a) de préférence mobile et par le fait que la deuxième commande (5) motorisée du mécanisme (3) de déplacement est disposée du côté du deuxième crochet (1f) de préférence fixe.Device according to claim 1 or 2, characterized in that the first manual drive mechanical control (4) is arranged on the side of the first preferably movable hook (6a) and in that the second motorized control (5) of the mechanism (3) is disposed on the side of the second hook (1f) preferably fixed. Dispositif selon la revendication 1 ou 2, caractérisé par le fait que la deuxième commande (5) de l'ensemble actionneur (2) est une commande (5) à moteur entraîné par un fluide, de préférence un moteur hydraulique.Device according to claim 1 or 2, characterized in that the second control (5) of the actuator assembly (2) is a motor driven control (5) driven by a fluid, preferably a hydraulic motor.
EP09306151A 2008-12-01 2009-11-27 Device for coupling and uncoupling an equipment item or a tool to/from the jib of a civil engineering and/or handling machine Not-in-force EP2192239B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0858171A FR2939159A1 (en) 2008-12-01 2008-12-01 DEVICE FOR COUPLING AND DECOUPLING EQUIPMENT OR TOOL TO A CIVIL ENGINE MACHINE ARROW AND / OR HANDLING

Publications (2)

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EP2192239A1 true EP2192239A1 (en) 2010-06-02
EP2192239B1 EP2192239B1 (en) 2011-07-20

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EP09306151A Not-in-force EP2192239B1 (en) 2008-12-01 2009-11-27 Device for coupling and uncoupling an equipment item or a tool to/from the jib of a civil engineering and/or handling machine

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EP (1) EP2192239B1 (en)
AT (1) ATE517213T1 (en)
ES (1) ES2371198T3 (en)
FR (1) FR2939159A1 (en)

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Publication number Priority date Publication date Assignee Title
WO2016198638A1 (en) * 2015-06-12 2016-12-15 Lehnhoff Hartstahl Gmbh & Co. Kg Quick-change device

Families Citing this family (1)

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Publication number Priority date Publication date Assignee Title
DE202021101016U1 (en) 2020-10-05 2022-01-07 Kinshofer Gmbh Quick coupler for construction machinery tools

Citations (4)

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Publication number Priority date Publication date Assignee Title
GB2251592A (en) * 1990-12-01 1992-07-15 Roberts & Griffiths Attachment means
DE9405014U1 (en) * 1994-03-24 1994-05-26 Leh, Karl Heinz Josef, 55765 Birkenfeld Attachable mounting and fastening device for a tool, an excavator bucket or the like can be attached to the extension arm of a tillage tool, excavator or the like.
DE29705609U1 (en) * 1997-04-02 1997-07-24 Leh, Karl Heinz Josef, 55765 Birkenfeld Safety device for a quick coupling of a working attachment on tillage equipment
WO2007038960A1 (en) * 2005-10-03 2007-04-12 Cos.Mec S.R.L. Safety system to avoid unexpected release of an implement from a quick coupling device connected to a working arm of an earth-moving vehicle.

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2251592A (en) * 1990-12-01 1992-07-15 Roberts & Griffiths Attachment means
DE9405014U1 (en) * 1994-03-24 1994-05-26 Leh, Karl Heinz Josef, 55765 Birkenfeld Attachable mounting and fastening device for a tool, an excavator bucket or the like can be attached to the extension arm of a tillage tool, excavator or the like.
DE29705609U1 (en) * 1997-04-02 1997-07-24 Leh, Karl Heinz Josef, 55765 Birkenfeld Safety device for a quick coupling of a working attachment on tillage equipment
WO2007038960A1 (en) * 2005-10-03 2007-04-12 Cos.Mec S.R.L. Safety system to avoid unexpected release of an implement from a quick coupling device connected to a working arm of an earth-moving vehicle.

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016198638A1 (en) * 2015-06-12 2016-12-15 Lehnhoff Hartstahl Gmbh & Co. Kg Quick-change device
DE102015210860A1 (en) * 2015-06-12 2016-12-15 Lehnhoff Hartstahl Gmbh & Co. Kg Quick coupler
US10934680B2 (en) 2015-06-12 2021-03-02 Lehnhoff Hartstahl Gmbh Quick-change device

Also Published As

Publication number Publication date
EP2192239B1 (en) 2011-07-20
ES2371198T3 (en) 2011-12-28
ATE517213T1 (en) 2011-08-15
FR2939159A1 (en) 2010-06-04

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