EP1473415B1 - Gesicherte hydraulische Verriegelungsvorrichtung für Schnellwechselvorrichtungen und dazu gehörende hydraulische Verbindungen für einen Koppler. - Google Patents

Gesicherte hydraulische Verriegelungsvorrichtung für Schnellwechselvorrichtungen und dazu gehörende hydraulische Verbindungen für einen Koppler. Download PDF

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Publication number
EP1473415B1
EP1473415B1 EP04356058A EP04356058A EP1473415B1 EP 1473415 B1 EP1473415 B1 EP 1473415B1 EP 04356058 A EP04356058 A EP 04356058A EP 04356058 A EP04356058 A EP 04356058A EP 1473415 B1 EP1473415 B1 EP 1473415B1
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EP
European Patent Office
Prior art keywords
hydraulic
cylinder
pressure
tool
chambers
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.)
Expired - Lifetime
Application number
EP04356058A
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English (en)
French (fr)
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EP1473415A1 (de
Inventor
René Sieffert
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Ateliers de Constructions du Beaujolais
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Ateliers de Constructions du Beaujolais
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Publication of EP1473415A1 publication Critical patent/EP1473415A1/de
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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
    • E02F3/3613—Devices to connect tools to arms, booms or the like of the quick acting type, e.g. controlled from the operator seat with means for absorbing any play therebetween
    • 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
    • E02F3/365—Devices to connect tools to arms, booms or the like of the quick acting type, e.g. controlled from the operator seat with redundant latching means, e.g. for safety purposes
    • 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
    • E02F3/3654—Devices to connect tools to arms, booms or the like of the quick acting type, e.g. controlled from the operator seat with energy coupler, e.g. coupler for hydraulic or electric lines, to provide energy to drive(s) mounted on the tool
    • 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
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/20—Drives; Control devices
    • E02F9/22—Hydraulic or pneumatic drives
    • E02F9/2264—Arrangements or adaptations of elements for hydraulic drives
    • E02F9/2275—Hoses and supports therefor and protection therefor

Definitions

  • the present invention relates to a secure hydraulic locking device for quick coupler and an associated hydraulic connection device.
  • the system is particularly intended for mounting tools such as buckets, pliers, hammers, on the arm or boom of a machine such as a hydraulic excavator.
  • the locking device allows the quick mounting of a tool at the end of the arm or the boom of a machine by a simple approach of the coupler until the contact of the tool.
  • the disassembly or disconnection is done by a voluntary action of the driver on the unlocking system by the control of a solenoid valve.
  • the latching devices of existing quick fastener systems on the market generally employ springs which hold a latch in a given position, such as in JP-A-2003021116 , or by the express action of the driver on one of the locking members. Unlocking is done manually or using a hydraulic actuator.
  • a first problem that the invention aims to solve is that of providing a secure hydraulic locking device for quick fasteners, of simple design, and of compact structure.
  • the pressures and the ratio of the sections of the two chambers of the locking jack and / or the safety jack are set so as to obtain a residual force on the rod, making it possible to make up any games of the lock and / or the device of the lock. safety and now this one / these in closed position.
  • the front chambers of the locking and safety cylinders have a determined section, making it possible to obtain a residual force on the rod, holding the latch, respectively the closing device in the closed position, when the device is locked, the chambers before the cylinders being either connected to the accumulator by means of the valve, or connected directly to the cover.
  • the front chamber When the device is locked, the front chamber is connected to the accumulator, or in another configuration, connected to the hydraulic cover, this depending on the needs of efforts of the locking device.
  • the pressure limiter associated with the accumulator is calibrated at a pressure lower than hydraulic pressure source, allowing the play of the sections in the two cylinders to unlock the system, the force obtained on the front chamber being greater than the force of the accumulator on the rear chamber.
  • the safety cylinder is subjected to the same pressure and section conditions, this safety cylinder limiting the stroke of the lock by acting directly on the rod of the locking cylinder or on an associated part.
  • a sequence valve is mounted on the duct supplying the front chambers of the cylinders putting said chambers in communication with the accumulator when the pressure is below a predetermined pressure and putting these chambers in communication with the duct. supplying the hydraulic pressure of the machine through the solenoid valve when the pressure exceeds this determined value. From this pressure level, the position of the sequence valve is modified and allows to feed the front chambers of locking and safety cylinders.
  • a throttle is placed on the conduit disposed between the sequence valve and the front chamber of the locking cylinder. This feature allows an offset in the supply of the front chambers of the locking cylinder and the safety cylinder, allowing actuation of the locking cylinder after the safety cylinder is moved to the open position.
  • the hydraulic connection device allows on the same principle to establish the hydraulic connections between the coupler and the tool, to pass the hydraulic power of the carrier to the tool.
  • the actuator of the connection module comprises a hollow rod allowing one or more passages of hydraulic lines.
  • Each line receives in the rod at its front end, a connector of known type and at the other end the connection to the pressure line of the wearer.
  • the tool side is the conjugate connector of known type.
  • the actuator moves under the action of the pressures released by the accumulator once the coupler / tool contact is made, and makes the hydraulic connection.
  • This device comprises at least one selection module disposed between the different pressure lines and the rear chambers of the cylinders, making it possible, during operation of the apparatus, to supply the rear chambers with the greatest of the pressures of the lines. connected. As the pressure increases one of the connected lines, the separation force of the connectors increases. This line pressure is then diverted into the rear chamber of the cylinder of connection by means of pressure switches so that the holding force developed by the cylinder is always related to the pressure of the lines to be connected.
  • this device comprises, on the supply line of the rear chamber (s) of the cylinders, a valve controlled at the opening allowing, in the disconnection phase, to reduce the pressure of the pressure lines and from the rear chamber of the cylinder, to that of the accumulator and thus to be able to disconnect under optimal conditions, and in that the hydraulic cylinder of the hydraulic connection module is supplied in the disconnection phase on the front chamber side by the pressure of the pump which drives a flap.
  • the body of the connection module comprises faces and fluid passages allowing a modular design without external connections, directly ensuring the passage of fluids and the fixing of a module to the other. This is an elegant way to solve the multiplicity of combinations of sizes and number of lines to connect.
  • the rod of the cylinder comprises a piston eccentric with respect to the rod, thus allowing immobilization in rotation of the rod relative to the body.
  • This immobilization is essential to allow the supply of the connectors of the actuator opposite those of the tool. Eccentration or any ovoid form assimilated, allows this immobilization in an optimal compactness.
  • each tool-side connector is flexibly mounted in its housing to adapt the alignment.
  • the combination of the secure locking device and the hydraulic connection device allows the manufacturer to have a complete function, realizing by simple approach of the coupler on the tool the locking and the realization of the hydraulic connections.
  • the combination of these two devices is achieved either by the juxtaposition of the two devices or by its integration, the drawer, the position detector, the control solenoid valve and even the accumulator may be common.
  • the figure 1 represents the lower end of the arm 2 of a machine, such as a shovel, equipped with a coupler 3 for mounting a tool 4 consisting of a hydraulic hammer whose upper end is shown in the drawing.
  • the tool is equipped with a connecting device 5 comprising a shaft 6 intended to engage in a cradle 7 of the coupler, the locking being achieved by means of a cam 8 mounted on a shaft 9.
  • the figure 2 represents an embodiment of the invention, wherein a locking jack 10 acts on the axis 8 of a cam 9 forming a latch.
  • a safety jack 12 acts on the same kinematic chain and comes to secure the locking by the contact between a wedge 13 carried by the rod of the jack and a stop 14 secured to the axis 8.
  • the figure 3 represents the hydraulic circuit in the normal working position, the accumulator 15 being in connection with the front and rear chambers of the locking cylinder 10 and the safety cylinder 12.
  • the pressure in the accumulator, and the ratio of the piston sections in both cylinders are established so as to obtain a residual force on the rod of the cylinders. It is this residual effort that will keep the lock in position and constantly come catch up with the game.
  • the figure 4 illustrates the start of unlocking.
  • the solenoid valve 22 is switched so as to feed the device from the hydraulic pressure source 23.
  • the pressure limiter 17 re-charges the accumulator 15 under pressure, so as to have, for the next working phase, the reserve hydraulic pressure required.
  • the sequence valve 16 switches and is used to feed the front chambers of the cylinders 10 and 12, the front chamber of the cylinder 12 being fed before the front chamber of the locking cylinder 10 due to the presence of a throttle 25 on the supply line of the latter chamber.
  • the safety cylinder 12 being retracted, allows to release the stroke of the locking cylinder 10.
  • the volume of hydraulic fluid in the chamber located on the side opposite the rod is taken by the accumulator 15.
  • the rod of the locking cylinder moves in a re-entry direction.
  • the driving pressure rod side increases the pressure on the side of the accumulator, until possibly reach the pressure given by the overpressure limiter 18.
  • the figure 5 represents the device in the end unlocking position.
  • the locking cylinder 10 continues its stroke, and comes to release the tool relative to the coupler.
  • the hydraulic control 19 identifying the coupler / tool contact is released by decoupling the tool and the coupler.
  • the drawer associated with the control 7 cuts the supply circuit of the safety jack 12.
  • the figure 6 represents the device in decoupled position.
  • the control solenoid valve 22 goes into the rest position, with connection of the return to the cover, and the sequence valve 16 passes the locking jack 10 back to the floating position, the two front and rear chambers of this cylinder being connected again. with the accumulator 15. Under the effect of the differential sections, the rod of the cylinder spring.
  • the identification of the relative position of the coupler and the hydraulic control 19 could be different and constituted for example by an inductive sensor coupled to a solenoid valve instead of the direct hydraulic control, or by indexing magnet, a magnet moving the hydraulic control spool when the coupler comes into contact with the tool.
  • the contact surfaces of the safety device including the wedge 13 at the end of the jack 12 are positioned so that a force on the cam does not directly transmit the force on the actuator.
  • the effort is taken directly by the structure and the system is mechanically irreversible thanks to the shapes of the surfaces in contact. This can be achieved by a wedge, the interposition of a pin or a teton working in shear.
  • the figure 7 represents an alternative to the supply of locking cylinders and safety, the front chamber of the two cylinders being connected to the hydraulic cover in the locking position, and the pressure of the carrier in the unlocked position, the other operating phase remaining identical.
  • the efforts involved here are more important than in the previous figures.
  • the second device of this invention makes it possible to pass the hydraulic energy from the carrier to the tool, such as a hatch bucket, an adjustable bucket or any other accessory requiring hydraulic energy.
  • the connection of the pressure lines L1 to Ln is made by the juxtaposition of the sufficient number of connection modules 28 which comprise a connector 32 - coupler side - and a connector 33 - tool side - of known type.
  • the connector 33 is fixedly mounted on the tool via an elastic suspension 34, the connector 32 being mounted on the rod 36 movable in translation of a jack 27.
  • an actuator 27 comprises a hollow piston 36 inside which is (are) fixed (the) connector (s) 32, mounted inside a cylinder 37, delimiting with it two chambers eccentric 38 and 39.
  • the eccentricity is obtained by the offset machining of the faces of the liner and the piston 35 relative to the axis of the rod, and aims to ensure proper angular positioning of the connectors 32 relative to the connectors 33 .
  • these chambers are connected by hoses to the hydraulic device according to the invention, this connection being able to be carried out alternately and successively with an accumulator 29, or with the hydraulic cover 24.
  • the two parts to be connected are brought face to face at the moment of mating coupler and tool, without the hydraulic connectors 32, 33 are in contact.
  • the chamber 38 of the actuator 27 is connected to the accumulator of pressurized fluid and the chamber 39 is connected to the tank 24.
  • the chamber 39 is supplied with pressurized fluid, and a valve 50 located between the chamber 38 and the accumulator 29 is controlled so as to reduce in lines L i the pressure up to the level of the limiter (18,35) the spacing of the connector 32 and the connector 33 being once the pressure of the chamber 39 greater than that of the chamber 38.
  • the flow being virtually zero at the time of disconnection, the pressure drop in the lines L i is instantaneous, but imperative to ensure the lifetime of the connectors 32 and 33. This operation is performed before the coupler / tool mechanical connection is unlocked.
  • Each module is an independent element and can be designed to allow the transmission from one module to another of the pressure information used to control the actuators. It is also possible to make the connection of other energy sources such as electric or pneumatic energies, by replacing the hydraulic connectors 32 and 33 by their hydraulic or pneumatic equivalents.
  • the connectors 33 on the tool side are mounted flexibly with the aid of a suspension 34, on a body whose outer shapes 61 allow the attachment of one module to the other, and whose central part consists of a part cylindrical 60 guiding the outer portion of the cylinder rod 27 and centering in the inner part the connectors 33. It retracts in use to allow connection parts 32 and 33, while ensuring their centering, and in disconnection phase, it provides a flat surface easy to clean.
  • connection modules can be done either parallel to the axis of rotation of the coupler relative to the tool, or perpendicular thereto, or in another direction, since the connectors are not set up only after coupling of the coupler and the tool.
  • the figure 11 represents the two preceding devices, in which the same elements are designated by the same references as before, furthermore comprising a jack 27 for actuating the hydraulic connection module designated by the general reference 28.
  • the jack 27 is powered to make the connection from the accumulator 15 through the hydraulic control 19 identifying the contact coupler / tool.

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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)
  • Fluid-Pressure Circuits (AREA)
  • Clamps And Clips (AREA)
  • Earth Drilling (AREA)
  • Shovels (AREA)
  • Automatic Tool Replacement In Machine Tools (AREA)

Claims (11)

  1. Gesicherte hydraulische Verriegelungsvorrichtung für einen Schnellverschluss zwischen dem Kuppler eines Tragarms einer Maschine und einem Werkzeug, umfassend:
    - mindestens einen hydraulischen Verriegelungszylinder (10), dessen Kolbenstangenende mit einem Riegel (26) versehen ist, der zum Zusammenwirken mit dem Werkzeug gedacht ist,
    - mindestens einen hydraulischen Sicherheitszylinder (12), dessen Kolbenstangenende dazu gedacht ist, in der geschlossenen Position des Riegels mit der Kolbenstange des Verriegelungszylinders oder mit einem damit verbundenen Teil zusammenzuwirken, um den Lauf des Riegels mechanisch zu begrenzen, und
    dadurch gekennzeichnet, dass sie Folgendes umfasst:
    - einen hydraulischen Druckspeicher (15), der mindestens mit den hinteren Kammern der Verriegelungs- (10) und Sicherheits- (12) Zylinder verbunden ist, und einen Schieber (19), der die Herstellung der Verbindung des Speichers (15) mit der hinteren Kammer des Sicherheitszylinders (12) in der verriegelten Position der Vorrichtung sicherstellt und diese Verbindung in der entriegelten Position unterbricht,
    - einen Stellungsdetektor, der in der Lage ist, die gekuppelte Position des Kupplers an dem Werkzeug zu erkennen und der den Schieber (19) steuert,
    - ein Elektrosteuerventil (22), das während des Entriegelns aus der hydraulischen Druckquelle (23) der Maschine Folgendes versorgen kann: die vorderen Kammern der Verriegelungs- (10) und Sicherheits- (12) Zylinder, so wie den hydraulischen Druckspeicher (15), und sicherstellen kann, dass der Drucküberschuss aus der hinteren Kammer des Verriegelungszylinders (10) an den Öltank (24) gelegt wird.
  2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, dass die Drücke und das Öffnungsverhältnis der beiden Kammern des Verriegelungszylinders (10) und/oder des Sicherheitszylinders (12) derart festgelegt sind, dass eine Eigenspannung an der Kolbenstange erzielt wird, die es ermöglicht, eventuelles Spiel des Riegels und/oder der Sicherheitsvorrichtung auszugleichen und diese(n) in der geschlossenen Position zu halten.
  3. Vorrichtung nach einem der Ansprüche 1 und 2, dadurch gekennzeichnet, dass die vorderen Kammern der Verriegelungs- und Sicherheitszylinder (10) und (12) einen bestimmten Querschnitt aufweisen, der es ermöglicht, an der Kolbenstange eine Eigenspannung zu erzielen, die den Riegel (26) bzw. die Schließvorrichtung in der geschlossenen Position hält, wenn die Vorrichtung verriegelt ist, wobei die vorderen Kammern der Zylinder (10) und (12) entweder mit dem Speicher über das Ventil (16) oder direkt mit dem Tank verbunden sind.
  4. Vorrichtung nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass ein Sequenzventil (16) auf der Leitung, welche die vorderen Kammern der Zylinder (10, 12) versorgt, montiert ist und die Verbindung der Kammern mit dem Speicher (15) herstellt, wenn der Druck geringer als ein bestimmter Druck ist, und die Verbindung dieser Kammern mit der Zufuhrleitung des hydraulischen Drucks der Maschine über das Elektroventil herstellt, wenn der Druck diesen bestimmten Wert übersteigt.
  5. Vorrichtung nach Anspruch 4, dadurch gekennzeichnet, dass eine Verengung (25) an der Leitung angebracht ist, die zwischen dem Sequenzventil (16) und der vorderen Kammer des Verriegelungszylinders (10) angeordnet ist.
  6. Modulare hydraulische Anschlussvorrichtung (28) zum Schnellverschluss zwischen dem Kuppler eines Tragarms einer Maschine und einem Werkzeug, dadurch gekennzeichnet, dass sie Folgendes umfasst:
    - mindestens einen Hydraulikzylinder (27), der sich seitens des Kupplers befinden kann, dessen Kolbenstangenende mit mindestens einem Hydraulikanschluss (32) bekannter Art verbunden ist, der dazu gedacht ist, um mit einem Hydraulikanschluss (33) zusammenzuwirken, der sich werkzeugseitig befinden kann, wobei die vordere Kammer des Zylinders mit dem Öltank (24) verbunden ist,
    - einen hydraulischen Druckspeicher (29), der mit der hinteren Kammer (38) des Hydraulikzylinders (27) verbunden ist, und einen Schieber (19), der in der verriegelten Position der Vorrichtung die Herstellung der Verbindung des Speichers mit der hinteren Kammer des Zylinders (27) sicherstellt und diese Verbindung in der entriegelten Position unterbricht,
    - einen Stellungsdetektor, der in der Lage ist, die gekuppelte Position des Kupplers auf dem Werkzeug zu erkennen, und den Schieber (19) steuert, wobei diese Erfassung beispielsweise über einen Taster oder einen Induktionsgeber erfolgen kann,
    - ein Elektrosteuerventil (22), das während des Entriegelns aus der hydraulischen Druckquelle (23) der Maschine Folgendes versorgen kann: die vorderen Kammern des Zylinders (27) sowie den hydraulischen Druckspeicher (15, 29), und sicherstellen kann, dass der Drucküberschuss aus der hinteren Kammer des Verriegelungszylinders (10) an den Öltank (24) gelegt wird.
  7. Vorrichtung nach Anspruch 6, dadurch gekennzeichnet, dass sie mindestens ein Auswahlmodul (40) umfasst, das zwischen den verschiedenen Druckleitungen (L1, L2, ..., L4) und der hinteren Kammer (38) des Zylinders (27) angeordnet ist und es ermöglicht, während des Betriebs des Geräts die Versorgung der hinteren Kammer (38) mit dem größten der Drücke aus den angeschlossenen Leitungen durchzuführen.
  8. Vorrichtung nach Anspruch 7, dadurch gekennzeichnet, dass sie auf der Versorgungsleitung der hinteren Kammer (38) des Zylinders (27) eine öffnungsgesteuerte Klappe (50) umfasst, die es in der Trennphase ermöglicht, den Druck der Druckleitungen (L1, L2, ..., L4) und der hinteren Kammer des Zylinders auf denjenigen des Speichers (29) zu reduzieren und somit für eine Abtrennung unter idealen Bedingungen zu sorgen, und dass der Hydraulikzylinder (27) des hydraulischen Anschlussmoduls (28) in der Trennphase auf Seiten der vorderen Kammer mit dem Druck der Pumpe (23) versorgt wird, die eine Klappe (50) steuert.
  9. Vorrichtung nach einem der Ansprüche 6 bis 8, dadurch gekennzeichnet, dass der Zylinder (27) einerseits einen Hohlkolben (36) umfasst, der mindestens einen Anschluss (32) trägt, der in einem Zylinder (37) montiert ist, mit dem er zwei Kammern begrenzt, die eine Kraft entwickeln, die mindestens gleich den Trennkräften ist, die auf die Anschlüsse im Gebrauch zurückzuführen sind, wobei die Kammern (38, 39) bei mehreren Anschlüssen im Verhältnis zur Achse des Kolbens versetzt sein können, um den Kolben (36) im Verhältnis zum Körper (37) drehmäßig festzulegen, und andererseits Bohrungen in dem Körper (37), die den Durchgang der Steuerhydraulik von einem Modul zum anderen ohne externe Kupplungselemente sicherstellen.
  10. Vorrichtung nach Anspruch 6 bis 9, dadurch gekennzeichnet, dass das Anschlussmodul, das sich auf Seiten des Werkzeugs befinden kann, einerseits Befestigungsseiten (61), welche die Modularität ermöglichen, und andererseits ein bewegliches zylindrisches Teil (60), das in der abgetrennten Position eine ebene Oberfläche bereitstellt und sich in der Anschlussphase, nachdem es das Zentrieren der Kolbenstange (36) im Verhältnis zu den Anschlüssen (33) sichergestellt hat, zurückzieht, umfasst.
  11. Vorrichtung nach den ganzen Ansprüchen 1 und 6, dadurch gekennzeichnet, dass die gesicherte Verriegelungsvorrichtung mit der hydraulischen Anschlussvorrichtung als eine einzige Entität gekuppelt oder daran angrenzend ist, um einen mechanischen und hydraulischen Anschluss eines Werkzeugs auf einem Kuppler sicherzustellen.
EP04356058A 2003-04-30 2004-04-28 Gesicherte hydraulische Verriegelungsvorrichtung für Schnellwechselvorrichtungen und dazu gehörende hydraulische Verbindungen für einen Koppler. Expired - Lifetime EP1473415B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0305377 2003-04-30
FR0305377A FR2854415B1 (fr) 2003-04-30 2003-04-30 Dispositif securise de verrouillage hydraulique d'attaches rapides et de connexions hydrauliques associees, entre le coupleur d'un bras porteur d'un engin et un outil

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Publication Number Publication Date
EP1473415A1 EP1473415A1 (de) 2004-11-03
EP1473415B1 true EP1473415B1 (de) 2011-06-08

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EP04356058A Expired - Lifetime EP1473415B1 (de) 2003-04-30 2004-04-28 Gesicherte hydraulische Verriegelungsvorrichtung für Schnellwechselvorrichtungen und dazu gehörende hydraulische Verbindungen für einen Koppler.

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EP (1) EP1473415B1 (de)
AT (1) ATE512258T1 (de)
ES (1) ES2367888T3 (de)
FR (1) FR2854415B1 (de)

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Publication number Priority date Publication date Assignee Title
AT7773U1 (de) * 2004-02-23 2005-08-25 Wimmer Alois Ing Anordnung zum verbinden von energieleitungen, insbesondere druckleitungen
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EP2426266B1 (de) * 2010-09-07 2018-10-17 Caterpillar Work Tools B. V. Kupplungsanordnung
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ES2367888T3 (es) 2011-11-10
FR2854415B1 (fr) 2005-07-08
EP1473415A1 (de) 2004-11-03
ATE512258T1 (de) 2011-06-15
FR2854415A1 (fr) 2004-11-05

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