EP1239087A1 - Accouplement rapide - Google Patents

Accouplement rapide Download PDF

Info

Publication number
EP1239087A1
EP1239087A1 EP02005070A EP02005070A EP1239087A1 EP 1239087 A1 EP1239087 A1 EP 1239087A1 EP 02005070 A EP02005070 A EP 02005070A EP 02005070 A EP02005070 A EP 02005070A EP 1239087 A1 EP1239087 A1 EP 1239087A1
Authority
EP
European Patent Office
Prior art keywords
quick coupling
energy
quick
coupling
guide
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
EP02005070A
Other languages
German (de)
English (en)
Other versions
EP1239087B2 (fr
EP1239087B1 (fr
Inventor
Rolf Mieger
Thomas Zitterbart
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Liebherr Hydraulikbagger GmbH
Original Assignee
Liebherr Hydraulikbagger GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=26008732&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP1239087(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Priority claimed from DE10159417A external-priority patent/DE10159417C2/de
Application filed by Liebherr Hydraulikbagger GmbH filed Critical Liebherr Hydraulikbagger GmbH
Publication of EP1239087A1 publication Critical patent/EP1239087A1/fr
Application granted granted Critical
Publication of EP1239087B1 publication Critical patent/EP1239087B1/fr
Publication of EP1239087B2 publication Critical patent/EP1239087B2/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

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
    • E02F3/3663—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
    • E02F3/3654—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
    • 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
    • E02F9/2267—Valves or distributors
    • 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
    • E02F9/2271—Actuators and supports therefor and protection therefor
    • 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 quick coupling for coupling a Tool on the boom of a hydraulic excavator and the like, with a boom-side quick coupling part and a tool-side quick coupling part, which can be locked together via a pair of spaced locking axes are, as well as an energy circuit coupling, in particular hydraulic coupling, for coupling a tool-side power connection to a boom side Power connection, the power circuit coupling on the boom side Has energy coupling part and a tool-side energy coupling part, the on the quick coupling part on the boom side or the quick coupling part on the tool side are arranged so that they automatically couple with each other, as soon as the two quick coupling parts around a first of the two locking axes be pivoted into their locking position.
  • Swivel type quick couplings are widely used in hydraulic excavators because they can easily and quickly change different tools such as hydraulic grippers, Grave clearing spoons, gripping tongs and the like are allowed.
  • For coupling only needs one of the two locking axes positioned and engaged to be brought.
  • This can advantageously be a cross bolt that is in a hook-shaped eyelet is attached to the opposite coupling part.
  • the boom-side coupling part relative to the tool to the already in Engaged locking axis are pivoted, thereby the locking position to find in which the second locking axis are locked can.
  • the latter is usually formed by a pair of locking bolts, the apart and in corresponding locking holes on the opposite Can retract the quick coupling part.
  • Such a swivel type quick coupling is known from WO 91/01414, in which an automatic hydraulic coupling is provided, which when swiveling together of the two quick coupling parts automatically one on the boom side Coupling the energy circuit with an energy circuit on the tool side.
  • One of the two Energy coupling parts can be moved on the corresponding quick coupling part mounted to the circular movement of the quick coupling parts when swiveling together compensate.
  • the present invention is therefore based on the object of an improved To create a quick connector of the type mentioned, the disadvantages of the stand avoids technology and further develops the latter in an advantageous manner.
  • an improved arrangement of the energy coupling is to be created, a leak-free and trouble-free coupling of the boom and tool side Energy circles allowed.
  • the energy coupling parts are moved exactly linearly on one another.
  • a linear guide is provided for the energy coupling parts that the Energy coupling parts against the circular swivel movement to a Relative movement to each other along a straight line forces.
  • To compensate To enable the pivoting movement is at least one of the two energy coupling parts on the corresponding quick coupling part movable relative to this stored.
  • the movably mounted energy coupling part pivots when Movement of the quick coupling parts is compensated and moves exactly that between the two energy coupling parts there is an exactly linear movement he follows.
  • the linear guide has at least one on the boom side Guide element and at least one tool-side guide element, which come into engagement with one another when the energy circuit coupling is closed before the two energy circuit coupling parts, in particular their connection connectors, engage with each other.
  • the linear guide arrives at the Swiveling movement of the two quick coupling parts around the already locked one first locking axis as the energy coupling parts in and out of engagement.
  • the guide elements of the linear guide engage before the Connection connectors of the energy coupling parts, so that the linear guide of the Energy coupling parts is ensured from the start. There can be no canting take place and a precise linear movement over the entire coupling distance of the energy coupling parts is ensured.
  • the guide elements the linear guidance of the actual energy coupling elements d. H. the connector pieces separately formed components. However, they are preferred firmly arranged on the energy coupling parts or they can be molded onto them his.
  • the linear guide can basically be designed differently. Possibly can be a link guide for the movably mounted energy coupling part or be provided for the movably mounted energy coupling parts. It can also a cam-like control of the movement of the movable energy coupling parts be provided. In a further development of the invention, however, are preferred at least as guide elements on one of the energy coupling parts a guide pin and at least one on the other energy coupling part Guide hole provided.
  • the guide pin slides when it is pushed together the energy coupling parts fit precisely into the complementary guide bore, thereby ensuring a linear movement.
  • a Pair of spaced guide pins and associated guide holes provided the connection connectors between the guide bolts or guide holes can be arranged.
  • the guide bolts extend with its longitudinal axis parallel to the direction in which the connection connectors can be pushed together.
  • connection connectors the Energy coupling parts known female and male connector pieces have that can be pushed into each other.
  • the guide pin or pins of the linear guide preferably have a special one Shaping that is tilted when inserted into the complementary guide hole prevented.
  • each of the guide bolts can be rounded Head, a cylindrical guide section and a constriction have provided between the head and the cylindrical guide portion is.
  • the guide pin has one opposite reduced diameter to the head or to the guide section.
  • the rounded head can also be inserted into the guide hole with a slight angular offset be inserted. Alignment or compensation of the angular misalignment takes place when the cylindrical guide surface axially spaced from the bolt head also comes into engagement with the guide bore.
  • At least one of the two energy coupling parts is relative to the associated one Quick coupling part movably supported.
  • the mobility of the storage of the corresponding energy coupling part is preferably multi-axis.
  • the storage of the energy coupling part at least one tilting movement about a to the first locking axis parallel axis and a movement in a direction perpendicular to allow the first locking axis. It preferably also allows one Sliding movement parallel to the first locking axis and / or a tilting movement about a tilt axis perpendicular to the first locking axis.
  • the Arrangement of the energy coupling parts made cheaper due to coarser tolerances become.
  • one of the two energy coupling parts is on one Spring device, in particular mounted on a pair of compression springs.
  • the compression springs can be rigidly attached to the corresponding quick coupling part and jointly carry the corresponding energy coupling part.
  • a limitation of the spring travel in the direction of the clutch movement is provided his.
  • a pressure tappet can be provided on which the movable power coupling part is tiltable and / or slidably seated on.
  • the plunger preferably has a rounded head which is approximately centric between the spring elements of the spring device on the energy coupling part can attack.
  • the pressure tappet presses in the final stage of the coupling movement the two energy coupling parts securely and firmly on top of each other.
  • the ram can be variable in length.
  • the Pressure plunger must be resilient to avoid damage and a Allow tolerances to be compensated, the spring constant of the pressure plunger much harder than that of the resilient mounting of the energy coupling part can be.
  • the pressure tappet can be used as a hydraulic tappet be trained, d. H. it is in its extended position by pressure medium extendable or preloadable. This can preferably towards the end of Coupling movement or after the energy coupling parts have completely moved together given greater pressure on the movably mounted energy coupling part be so that the energy coupling parts reliably in their retracted Be held.
  • the hydraulic pressure with which the pressure tappet is used is particularly advantageous holds the two energy coupling parts together, to the respective operating conditions customized.
  • the force that holds the energy coupling parts together always chosen so large that the parts are held together at all times without play become.
  • the maximum force is not constantly used, that would be sufficient to hold the parts together under all operating conditions.
  • the latter is disadvantageous in the case of a solution by means of a spring. Should he The pressure tappet must hold the energy coupling parts together with spring force alone the spring must be dimensioned so large that it is the energy coupling parts under all conditions holds together, so that far too large forces over long distances would work.
  • the pressure force can be advantageous can be varied.
  • the pressure tappet can be supplied with pressure medium from one of the pressure medium circuits to be coupled, ie the pressure tappet is acted upon by the pressure fluid which is coupled to the tool and passed on via the energy coupling.
  • the holding force increases depending on the working pressure of the tool.
  • the area ratio between the effective cylinder effective area of the pressure tappet, which is acted upon by the pressure medium, to the effective connector area, that is to say the effective flow cross-section leading through the coupling, which is acted upon by pressure medium perpendicular to the coupling direction in the area of the connectors is greater chosen as 1.
  • An advantageous embodiment may be that the area ratio of about 5/4.
  • the holding force exerted by the pressure tappet is always greater than the maximum force that the energy coupling tries to push apart. If the operating pressure in the pressure medium lines to be coupled increases, the force acting on the pressure tappet and thus the holding force also increases.
  • Several pressure medium connectors are usually provided. Likewise, several plungers can be provided. In this case, the ratio of the sum of the effective cylinder effective areas and the sum of the connector areas is selected in the manner described above.
  • the cylinder of the pressure ram or can Cylinder of the pressure tappet with several, in particular all, pressure medium lines of the pressure medium circuit to be coupled can be brought into flow connection. Is preferably between the pressure medium lines and the cylinder or cylinders switched a valve arrangement, which ensures that always that of Pressure medium lines, which has the highest pressure, in connection with the pressure tappet stands. This ensures that the plunger is always sufficient with the great pressure is applied.
  • the pressure medium lines can be used as a valve arrangement be connected in pairs via shuttle valves, so that The greater pressure always prevails, so to speak.
  • the pressure tappet can come from different sections of the pressure medium circuit be fed. It is possible to connect the pressure medium circuit on the boom side with the Connecting plunger.
  • the fluid connectors are usually with leakage protection provided so that the pressure tappet can already be operated, if the connectors are not yet connected, by extending the Tappet the connectors are connected.
  • the cylinder or cylinders from the tool-side pressure medium circuit fed here i.e. they are only pressurized when the Energy circuit coupling and especially their fluid connectors moved together are and have the connectors coupled.
  • the energy circuit coupling parts can also be provided in relation to the swiveling movement of the quick coupling delayed start up. This can be achieved simply by the hydraulic actuation of the pressure ram is carried out with a time delay.
  • a separate hydraulic circuit for actuating the pressure tappet can be provided his.
  • the movably mounted energy coupling part and thus the pressure tappet can always be arranged on the boom side. In development of the invention, however they are provided on the tool side.
  • the pressure plunger is provided with a pressure cap on the front has a flat face so that it is full and flat on the main flat energy coupling part can sit on.
  • the pressure cap and plunger complement each other have curved surfaces with which they sit on one another, so that the Can tilt the pressure cap on the plunger itself and still a flat connection is provided.
  • a positive Locking of the two energy coupling parts can be provided.
  • the guide pin of the linear guide to lock when this is inserted into the complementary guide hole is.
  • a movable cross bolt can be provided which is mounted in the energy coupling part, the said guide hole having.
  • the locking cross bolt can preferably be acted upon hydraulically.
  • the cross bolt with the constriction of the guide bolt interact, d. H. if the guide pin is completely in the The guide hole is retracted, the locking cross pin becomes tangential to Guide hole retracted so that it protrudes into the guide hole, and in the area where the constriction of the guide pin is located.
  • a separate latch for positive locking Locking of the two energy coupling parts in their coupled Position should be provided.
  • a locking flap is preferably provided.
  • the latch can be actuated by a preferably hydraulically operated actuating cylinder be provided.
  • the latch can be spring loaded so that it fits into its locking position is biased. As a result, the actuating means only needs can be operated to unlock.
  • a pre-centering for the two energy coupling parts when swiveling the quick coupling parts together intended aligns the two energy coupling parts Before intervening the linear guide so far that the corresponding Guide elements of the linear guide can interlock as intended.
  • the pre-centering can be designed differently. It preferably has one Couple sliding together when swiveling the quick coupling parts Centering surfaces, one of which is on the movably mounted energy coupling part is provided. The other of the interacting centering surfaces can be provided on the other energy coupling part. In development of the invention it can be arranged on the opposite quick coupling part. In particular, they are arranged such that they engage before the linear guide devices.
  • a swivel guide in addition to the pre-centering, a swivel guide be provided, which ensures that the two quick coupling parts only in their target orientation to each other, d. H. if the first locking axis is working properly is aligned, can be pivoted together.
  • the Swivel guide prevents damage to the hydraulic coupling when moving together of the quick coupling parts with offset. In the latter case, the Connection pieces or the guide bolts of the energy coupling parts also with Drive offset on one another and cause damage.
  • the swivel guide preferably has provided on the massive swivel coupling parts themselves Guide surfaces on, if the quick coupling parts are properly aligned when swiveling together about the first locking axis glide past or slide on each other.
  • the guide surfaces advantageously prevent it especially when the energy coupling parts are already engaged have come together, moving the two quick coupling halves to each other before the second locking axis is locked. Such an offset would inevitably result in damage to the energy coupling.
  • the guide surfaces can be designed in such a way that, as soon as they are pushed over one another are, with the first, hook-shaped locking axis cooperate, so that an offset or slipping of the Quick coupling halves to each other is prevented.
  • the energy circuit coupling an assembly unit that can be retrofitted to the two quick coupling parts. It is not an integral part of the quick coupler.
  • the energy circuit coupling is preferably designed such that already existing ones Quick couplers can be retrofitted.
  • the energy circuit coupling outside the locking axes of the two quick coupling parts is not difficult to access between the two locking axes, but can e.g. B. can be easily reached for cleaning. moreover it is not the one that is prone to collecting dirt and dirt Clearance between the two locking axes.
  • the energy circuit coupling is within abutting surfaces the quick coupling part on the tool side and / or the cantilever side Quick coupling part arranged, in particular such that in the separate Condition of the two coupling parts, the energy circuit coupling parts are not knock on the floor when the corresponding quick coupling part hits the floor is discontinued.
  • the two quick coupling parts can each two spaced, substantially perpendicular to the locking axes support pieces have and the energy coupling parts between two belonging together Support pieces can be arranged transversely to these. They are protected Area between the vertical support pieces of the quick coupling parts.
  • the carrier pieces of the quick coupling parts slide in the area the locking axes one inside the other or one above the other.
  • the quick coupling part on the boom side is free of a base plate extending parallel to the locking axes the energy coupling part would be arranged. This avoids that Place the coupling part on the boom side with its base plate on the ground the energy coupling part arranged thereon is pressed into the ground.
  • the two energy coupling parts are each in the essentially plate-shaped.
  • the male or female connector pieces already mentioned which form the power connections. Can be spaced from this the guide bolts or guide bores are rigidly attached or incorporated his.
  • the quick coupling 1 shown in the figures has a quick coupling part on the boom side 2, which is pivotable on the arm 3 of a boom of a hydraulic excavator is attached and via a swivel tab not shown in itself in a known manner about the pivot axis 4 perpendicular to the longitudinal axis of the stem 3 can be pivoted.
  • the quick coupling 1 also has a tool side Quick coupling part 5, which is connected to a hydraulic excavator tool. This can e.g. B. a gripping tool with a rotary mechanism 6, the hydraulic can be actuated.
  • the two parts 2 and 5 of the quick coupling 1 are connected to one another via two parallel, spaced locking axes 7 and 8 lockable with each other.
  • the locking axes 7 and 8 extend, as shown in Figure 1, in parallel to the pivot axis 4, about which the quick coupling 1 pivots relative to the handle 3 can be.
  • the first of the two locking axes 7 is on the one hand on the tool side Quick coupling part 5 provided cross bolts 9 and a pair locking hook 10 provided on the quick coupling part 2 on the boom side educated.
  • the locking hooks 10 can be hooked onto the cross bolt 9, so that this is gripped by the locking hook 10 and the tool side Quick coupling part 5 can be raised.
  • the locking hooks 10 open to one side, hook-shaped recesses that the Cross bolt 9 surrounded half-shell.
  • the hook recesses are there open to the side of the quick coupling part 2, that of the second locking axis 8 is turned away.
  • the second locking axis 8 is moved apart Locking bolt pair 11 and an associated pair of locking holes 12 formed.
  • the locking pin pair 11 is on the cantilever quick coupling part 2 arranged and can by itself known drive mechanism, preferably hydraulic, retracted and extended become.
  • the locking holes 12 are in the quick coupling part on the tool side 5 trained.
  • both have the boom side Quick coupling part 2 as well as the quick coupling part on the tool side 5 spaced apart, substantially vertical support pieces that are spaced differently from one another, so that the carrier plates of the cantilever side Quick coupling part 2 between the carrier plates of the tool side Quick coupling part 5 can retract.
  • the two quick coupling parts 2 and 5 are pivoted together so far, that the locking bolt pair 11 and the associated locking holes 12 are aligned. Then the locking bolts 11 are preferred moved apart by hydraulic actuation so that they enter the Retract locking holes 12. Through the two locking axes 7 and 8, the two quick coupling parts 2 and 5 are firmly locked together.
  • the two massive quick coupling parts 2 and 5 each have a guide surface 46 and 47 (see FIG 11), which can only be pushed over or over each other, when the first locking axis 7 is properly aligned.
  • the guide surfaces 46 and 47 can be designed such that they act centering, i. H. the two Press quick coupling parts 2 and 5 into the correctly aligned position, when they are swung together.
  • the quick coupling is used to supply power to the drive elements on the tool side 1 a hydraulic clutch 13 is assigned, which has a hydraulic circuit on the boom side connects to a hydraulic circuit on the tool side.
  • a hydraulic clutch 13 is assigned, which has a hydraulic circuit on the boom side connects to a hydraulic circuit on the tool side.
  • the Rotating mechanism 1 according to Figure 1 can be operated hydraulically. It can additional drive elements and, accordingly, several hydraulic circuits are provided and be coupled.
  • the hydraulic clutch 13 comprises two energy coupling parts 14 and 15, on the one hand on the boom-side quick coupling part 2 and on the other hand on the tool-side quick coupling part 5 are mounted.
  • the energy coupling parts 14 and 15 are respectively between the vertical support pieces 16 of the quick coupling part on the boom side 2 or the vertical support pieces 17 of the quick coupling part on the tool side 5 arranged. This protects you. Stand in particular they do not have the quick coupling parts 2 or 5 such that the energy coupling parts 14 or 15 would be pressed into the ground if the corresponding Quick coupling parts 2 are placed on the floor.
  • Both power coupling parts 14 and 15 hold a plurality of power line couplings together. They are each designed as a connector block in which a plurality of connector pieces 18 are combined. As Figure 7 shows each of the two energy coupling parts 14 and 15 has a plate-shaped carrier piece 19 and 20, which are each transverse to the corresponding quick coupling part 2 or 5 extends. Sit perpendicular to the support pieces 19 and 20 the connector pieces 18 that can be pushed together and the hydraulic Effect fluid connection.
  • the connector pieces 18 can be known per se Connector pieces to be female and male type.
  • this is on the boom side Quick coupling part 2 arranged energy coupling part 14 fixed, d. H. it is rigid relative to the quick coupling part 2. That on the tool side Quick coupling part 5 attached energy coupling part 15 is on this movably mounted.
  • FIG. 4 and FIG. 7 show, the entire energy coupling part is seated 15 on a spring arrangement 21, which in the embodiment shown there are four compression springs arranged in a rectangle.
  • the compression springs 22 are on the one hand attached to angle plates which on the vertical support pieces 17 of tool-side quick coupling part 5 are arranged (see FIG. 7). on the other hand are the cylindrical spring elements 22 with the support piece 20 of the energy coupling part 15 connected, preferably screwed.
  • the springs 22 have sufficient height and elasticity so that the energy coupling part 15 can be moved or tilted in multiple axes.
  • the spring arrangement 21 forms a multi-axis movable bearing for the energy coupling part 15, so that this an offset to the opposite energy coupling part 14, in particular compensate due to the swiveling movement of the quick coupling parts 2 and 5 can.
  • the two energy coupling parts run 14 and 15 automatically by the swiveling movement of the quick coupling parts 2 and 5 in sync with them.
  • the energy coupling parts 14 and 15 experience a circular path movement about the first locking axis 7. Since the connector pieces 18 on the two energy coupling parts 14 and 15 but must be moved linearly, the pivoting movement of the Energy coupling parts 14 and 15 balanced by the spring assembly 21.
  • the hydraulic clutch 13 is one Assigned linear guide 23, which ensures that the energy coupling parts 14th and 15 exactly along the pivoting movement of the quick coupling parts 2 and 5 to be driven on a straight line.
  • the linear guide 23 consists of the drawn embodiment from a pair of guide bolts 24 and associated Guide bores 25 into which the guide pins 24 mentioned when moving together retract the two energy coupling parts 14 and 15. Force you thereby the springs 22 to a deflection to the pivot movement component to compensate. In addition, offset due to tolerances at the Assembly also compensated.
  • the guide bolts 24 are rigid with the carrier piece 19 of the energy coupling part 15 connected and are perpendicular to this to the opposite Energy coupling part 14 forward.
  • Each guide pin 24 is substantially cylindrical educated. In particular, however, each guide pin 24 has one rounded head 26, a cylindrical guide portion 27 and one in between lying constriction 28 that the bolt head 26 from the cylindrical Guide section 27 separates. Due to the special design of the guide bolts 24 tilting is prevented during insertion into the guide bores 25. How Figure 20 shows the outer surface of the guide pin 24 in the area of Head 26 be rounded in a spherical shape. The spherical rounding goes into the Constriction 28 over.
  • the cylindrical Shaft part or guide section 27 has a conical bevel that in the area from 5 to 15 degrees, preferably about 10 degrees.
  • the special shape the guide pin, in particular the spherical shape of the head, allows tilt-free Insert the guide bolts into the opposite guide holes.
  • the guide bores 25 can be in the area of their opening cross section a cross-sectional broadening in the form of a phase, a rounding or have the like to facilitate threading (see FIG. 4).
  • the guide holes 25 and guide bushings 28 made of suitable Formed material used in the boom-side power coupling part 14 are.
  • a pre-centering 29 for pre-centering the two Energy coupling parts 14 and 15 can be provided relative to each other.
  • Figure 10 shows an example of such a pre-centering 29.
  • this can be movable stored energy coupling part 15 have a centering surface 30.
  • on the other hand can have a cam-shaped centering surface on the opposite quick coupling part 31 may be provided on which the centering surface 30 of the energy coupling part 15 slides when the two quick coupling parts 2 and 5 move together become.
  • the pre-centering causes the two energy coupling parts 14 and 15 in an at least roughly aligned position to each other are when they are bumped into each other.
  • an actuator is preferably provided, which is on the last stretch the swiveling movement of the quick coupling parts 2 and 5 becomes active and the two energy coupling parts 14 and 15 press completely against each other.
  • a plunger 32 on which the spring-loaded Energy coupling part 15 is seated (see FIG. 6). Because the springs are sufficiently elastic to compensate for the swivel movement or offset, these could be give way and be squeezed so that it doesn't become a complete Coupling of the hydraulic clutch comes.
  • the plunger 32 acts as a limiter for the spring travel of the spring bearing.
  • the head of the pressure ram 32 preferably slightly rounded, so that even with a slight inclination of the movably mounted energy coupling part 15 is as centrally seated as possible is reached on the plunger 32.
  • the plunger 32 can also be resilient be trained.
  • the pressure tappet 32 can be displaced longitudinally mounted bolt, which is by means of a compression spring 43, which is in the form of a Disc spring pack can be formed, is biased.
  • the spring hardness of the Pressure plunger 32 is advantageously much larger than that of the spring arrangement 21 for the movable mounting of one energy coupling part 15.
  • the energy coupling part 15 is seated towards the end of the movement together on the plunger 32.
  • the pressure tappet 32 can, according to an alternative embodiment of the Invention be a hydraulically operated ram.
  • the arrangement can be reversed be d.
  • the movably mounted energy coupling part is preferred arranged on the boom-side quick coupling part 2, so that the pressure tappet can be supplied by the hydraulic system on the boom side. With the hydraulically extendable Pressure plunger can particularly towards the end of the coupling movement an increased force can be applied.
  • FIGs 15 to 18 show an advantageous embodiment of the hydraulic clutch with hydraulically operated ram.
  • the energy coupling parts are basic movably or resiliently mounted in the manner described above, so that on the foregoing description is referred to.
  • the Pressure plunger retracted so far in its starting position that between the plate-shaped carrier piece 19 and the end face of the pressure plunger 32 is air.
  • the energy clutch therefore first threads with the aid of the springs 22 or the one applied thereby Force.
  • the linear guide ensures that the two energy coupling parts to drive perpendicular to each other. This creates an elastic Deformation of the stored springs, as shown in Figure 16.
  • the hydraulic ram 32 is provided, the centric presses against the support piece 19 so that it is full against the boom side Carrier piece 20 is pressed.
  • the pressure tappet 32 comprises a piston-cylinder unit consisting of a plunger 60 and one of the plungers 60 displaceably leading cylinder liner 61 there.
  • the cylinder liner 61 is fluid-tight in the tool-fixed carrier piece 62 of the energy coupling screwed.
  • the plunger 60 has a spring assembly 63 biased, namely in its extended position, in which it by means of a Paragraph 64 drives against a cylinder liner-side paragraph.
  • a spring assembly 63 disc springs of suitable strength can be provided.
  • the disc springs are like this dimensioned so that they give way when the energy coupling parts are moved together can.
  • the play-free, firm holding together under all operating conditions is achieved by the hydraulic action on the plunger 60. This is via a pressure fluid bore 65 of the plunger 60 or a pressure chamber 66 connected to the hydraulic lines of the tool.
  • FIG. 18 shows in the illustrated embodiment, four pressure medium lines 67, 68, 69, 70 by means of the connectors 71 of the power coupling from the boom side to the tool side of the quick coupler.
  • the tool-side pressure medium lines 67 to 70 are all connected to the pressure chamber 66 of the pressure tappet 32.
  • the pressure medium lines 67 to 70 are each in pairs via shuttle valves 72, 73 and 74 combined.
  • the shuttle valves in the form of double check valves ensure that the pressure medium lines 67 to 70 are located always penetrates the pressure medium line that has the highest pressure.
  • In the pressure chamber 66 of the pressure plunger 32 is always the pressure that is the largest of the pressure prevailing in the pressure medium lines 67 to 70.
  • the effective area of the plunger which causes its actuating force, is included larger than the sum of the cross-sectional areas of the connectors 71. In connection with the circuit that always gives the greatest pressure to the plunger is thereby ensures that the cohesive force is always greater than that of the Pressures in the connectors cause forces that separate the energy coupling want.
  • a pressure cap 75 is seated on the face of the plunger 60, which has a substantially flat end face. This ensures that it always lies flat against the carrier plate 19 and excessive surface pressures, how they would occur with a point contact, avoided are.
  • the connecting surfaces are 76, with which the end face of the plunger 60 and the pressure cap 75 each other touch, rotationally symmetrical rounded surfaces, so that a tilting movement between the pressure cap and the plunger 60 is possible. Still is also the contact between the plunger 60 and the pressure cap 75 flat.
  • the cross bolt 48 is such arranged that it can enter tangentially into the guide bore 25, and to be precise in the area in which the constriction 28 of the guide bolt 24 lies comes when the guide pin is fully inserted.
  • the cross bolt can have 48 sections of different diameters. If the bolt has a large diameter section in the guide hole 25 inserted, the guide pin 24 is locked. Will the cross bolt 48 with a section of tapered diameter in the guide bore 25 inserted, the guide pin 24 can be pushed in and out.
  • the cross pin 48 is preferably hydraulically actuated. If necessary it is biased into its locking position by means of a spring, so that a hydraulic actuation only for unlocking.
  • a bolt 49 can be provided, which the energy coupling parts 14 and 15 interlocked with one another in a positive manner (see FIG. 14).
  • the bolt 49 can be designed as a rocker arm, which by a Pivot axis 51 is pivotally mounted on the energy coupling part 14. On at one end it has a cranked hook with which it has a locking projection 52 engage behind on the opposite energy coupling part 15 can.
  • the bolt 49 is preferably locked in its locking by means of a spring 50 Prestressed position.
  • a hydraulic cylinder 53 is on the bolt 49 articulated in order to pivot its unlocking position (see FIG. 14).
  • the hydraulic cylinder 53 is arranged on the boom side in order to connect to the one there Hydraulic system to be permanently connected.
  • FIG 8 shows an alternative storage of the energy coupling parts 14 and 15.
  • both parts of the energy coupling are movably supported. That on the boom side
  • the quick coupling part 2 fastened energy coupling part 14 sits about a transverse axis 33 pivotable on a swivel bracket 34.
  • the swivel bracket is in turn a pivot axis 35 parallel to the transverse axis 33 and spaced apart therefrom pivotally mounted on the quick coupling part 2. If necessary, by means of a spring device ensures a neutral position of the energy coupling part 14 become.
  • the second energy coupling part 15, that on the tool-side quick coupling part 5 is attached, is also movably mounted. In the drawn version it is mounted to be longitudinally displaceable, in a plane that is parallel to the first locking axis 7 of the quick coupler 1. According to FIG. 8, this is second energy coupling part 15 movable from left to right. It is from the Springs 35 held in its neutral position.
  • FIG. 9 shows an alternative movable mounting of the tool provided Energy coupling part 15. It sits on a swivel bracket 36 which is around a Transverse axis 37 to the first locking axis 7 and pivotable away from this is.
  • the energy coupling part 15 itself sits on the swivel tab 36 around the Tilt axis 38 also pivotable.
  • the tilt axis 38 extends parallel to Axis 37, as shown in Figure 9.
  • springs 39 By means of springs 39, the energy coupling part 15 in held in its neutral position on the swivel tab 36.
  • FIG. 10 shows a further alternative mounting of the energy coupling part 14, which is attached to the quick coupling part 2 on the boom side. It is tiltable a cross bolt 40 which extends parallel to the first locking axis 7.
  • the energy coupling part 14 is slidably mounted on the bolt 40. It has an elongated hole 41 so that it can be moved transversely to the bolt 40.
  • the energy coupling part 14 is in its neutral position by means of a spring 42 held.
  • the pre-centering 29 already described is provided, which pre-centers the energy coupling part 14 when it is on the opposite one Energy coupling part 15 is driven when the two quick coupling parts 2 and 5 are pivoted together.
  • the Reference numerals 46 and 47 also designate the corresponding guide surfaces here.
  • the lock also locks with the quick coupler the hydraulic clutch guaranteed.
  • the hydraulic clutch 13 in particular due to the arrangement and positioning shown Existing quick couplers can be retrofitted because they are not integrated, but instead is adapted. The positioning of the hydraulic clutch 13 enables good accessibility for maintenance and repair.
  • a plurality of hydraulic lines can be integrated into a single one Coupling block can be summarized.
  • a stop 80 can be provided. As FIG. 19 shows, the stop 80 can be formed by two projections against which the spring-mounted carrier plate 19 moves when pulling apart.
  • the stops 80 are preferred centered, i.e. the line you define goes through the center of the guide bolts 24 of the energy coupling.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Quick-Acting Or Multi-Walled Pipe Joints (AREA)
  • Shovels (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)
EP02005070.4A 2001-03-09 2002-03-06 Attache rapide Expired - Lifetime EP1239087B2 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE10111485 2001-03-09
DE10111485 2001-03-09
DE10159417 2001-12-04
DE10159417A DE10159417C2 (de) 2001-03-09 2001-12-04 Schnellkupplung

Publications (3)

Publication Number Publication Date
EP1239087A1 true EP1239087A1 (fr) 2002-09-11
EP1239087B1 EP1239087B1 (fr) 2012-01-18
EP1239087B2 EP1239087B2 (fr) 2017-01-18

Family

ID=26008732

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02005070.4A Expired - Lifetime EP1239087B2 (fr) 2001-03-09 2002-03-06 Attache rapide

Country Status (8)

Country Link
US (1) US6813851B2 (fr)
EP (1) EP1239087B2 (fr)
JP (1) JP4102578B2 (fr)
CN (1) CN1246540C (fr)
CA (1) CA2374679C (fr)
CZ (1) CZ303239B6 (fr)
PL (1) PL200100B1 (fr)
RU (1) RU2235829C2 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1813730A2 (fr) * 2006-01-25 2007-08-01 Wilhelm Stoll Maschinenfabrik GmbH Chargeur frontal et cabine pour tracteur
DE102006020871B4 (de) * 2005-07-23 2009-02-26 Zeppelin Baumaschinen Gmbh Nachrüstbare Schnellkupplung für fernbetätigte Werkzeuge
DE202019101747U1 (de) * 2019-03-27 2020-06-30 Kinshofer Gmbh Schnellwechsler für Baumaschinenwerkzeuge
DE102019126439A1 (de) * 2019-10-01 2021-04-01 Liebherr-Werk Bischofshofen Gmbh Arbeitsgerät, insbesondere Radlader
DE102020110523A1 (de) 2020-04-17 2021-10-21 Liebherr-Hydraulikbagger Gmbh Schnellkupplung mit Zentriervorrichtung
EP4353910A1 (fr) 2022-10-12 2024-04-17 Liebherr-France SAS Machine de travail avec dispositif d'accouplement pour conduites transportant des fluides et procédé pour établir un état de fonctionnement d'une machine de travail
EP4357538A1 (fr) 2022-10-21 2024-04-24 Liebherr-Hydraulikbagger GmbH Godet d'excavatrice

Families Citing this family (47)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1023841C2 (nl) * 2003-07-07 2005-01-10 Eurosteel B V Snelwisselsysteem, alsmede graafbak met een dergelijk systeem.
DE102004037459A1 (de) * 2004-08-02 2006-02-23 Liebherr-Hydraulikbagger Gmbh Hydraulikschnellkupplung
DE102006023420B4 (de) * 2006-05-17 2013-02-28 Lehnhoff Hartstahl Gmbh & Co. Kg Schnellwechselvorrichtung
US7984575B2 (en) 2007-07-05 2011-07-26 Caterpillar Inc. Quick coupler assembly
US7686563B2 (en) * 2007-08-23 2010-03-30 1708828 Ontario Ltd. O/A Horst Welding Coupling apparatus for releasably coupling hydraulically powered work implements to a work vehicle
AT506554B1 (de) * 2008-03-20 2011-11-15 Alois Ing Wimmer Kupplungsvorrichtung mit einer einrichtung zum automatischen verbinden von energieleitungen
FR2933155B1 (fr) * 2008-06-30 2010-08-27 Staubli Sa Ets Ensemble de connexion et procede de connexion d'un tel ensemble
CN102272386B (zh) * 2008-11-27 2014-06-11 卡特彼勒作业机具有限公司 作业工具联结机构
US8469623B2 (en) * 2009-04-01 2013-06-25 Caterpillar Work Tools B.V. Quick coupling device
FR2946061B1 (fr) * 2009-05-29 2011-06-17 Klac Industrie Dispositif de securite pour attache rapide destinee a fixer un outil a l'extremite du bras d'une pelle hydraulique ou analogue.
EP2426267B1 (fr) * 2010-09-07 2020-12-30 Caterpillar Work Tools B. V. Agencement de couplage
EP2426266B1 (fr) 2010-09-07 2018-10-17 Caterpillar Work Tools B. V. Agencement de couplage
CN102330815B (zh) * 2011-05-24 2014-09-10 浙江吉利汽车研究院有限公司 动力连接器
DE102011053800A1 (de) * 2011-09-20 2013-03-21 Invite GmbH Haltegestell für eine Multikupplung zum Befüllen und/oder Entleeren eines Chemieanlagencontainers
US8974137B2 (en) 2011-12-22 2015-03-10 Caterpillar Inc. Quick coupler
US8684623B2 (en) 2012-05-30 2014-04-01 Caterpillar Inc. Tool coupler having anti-release mechanism
US9217235B2 (en) 2012-05-30 2015-12-22 Caterpillar Inc. Tool coupler system having multiple pressure sources
US8869437B2 (en) 2012-05-30 2014-10-28 Caterpillar Inc. Quick coupler
US9228314B2 (en) 2013-05-08 2016-01-05 Caterpillar Inc. Quick coupler hydraulic control system
US20150275466A1 (en) 2013-07-16 2015-10-01 Clark Equipment Company Implement interface
WO2015009335A1 (fr) * 2013-07-16 2015-01-22 Clark Equipment Company Interface d'accessoire
FI2902582T4 (fi) * 2014-01-29 2023-03-27 Mastokokoonpano ja menetelmä työkoneyksikön liittämiseksi mastokokoonpanon mastovaunuun
WO2015199081A1 (fr) 2014-06-26 2015-12-30 株式会社小松製作所 Coupleur rapide
SE539425C2 (sv) 2014-09-03 2017-09-19 Ytf Sweden Ab Snabbkoppling för fastkoppling av ett hydraulmanövrerat verktyg/redskap på en grävmaskin
CN104767041B (zh) * 2015-04-01 2016-12-07 苏州华旃航天电器有限公司 一种具有快速锁线结构的连接器
CN104831766A (zh) * 2015-05-07 2015-08-12 吴军香 一种电力驱动挖掘机用摆臂
DE102015216060A1 (de) * 2015-08-21 2017-02-23 Mts Maschinentechnik Schrode Ag Verbindungsanordnung
USD897377S1 (en) * 2016-05-09 2020-09-29 Indexator Rotator Systems Ab Rotator
EP3502354B1 (fr) * 2016-08-18 2021-05-12 Daemo Engineering Co., Ltd. Dispositif à sécurité intégrée pour raccord rapide
WO2018074937A1 (fr) * 2016-10-21 2018-04-26 Doherty Engineered Attachments Limited Ensemble de couplage et élément de fixation comprenant un élément de couplage
US10676324B2 (en) 2017-03-05 2020-06-09 Thomas A Weeks Plug and play tool connection
KR101809005B1 (ko) * 2017-07-04 2017-12-15 황윤국 크레인 사용 안전유닛을 구비하는 버킷 링크
FR3072981B1 (fr) * 2017-10-26 2021-03-19 Groupe Mecalac Dispositif de connexion automatique entre un outil et un porte-outil d'engin de chantier ou de travaux publics
US11255070B2 (en) 2018-06-15 2022-02-22 Clark Equipment Company Hydraulic coupling
GB2580380B (en) * 2019-01-08 2021-07-21 Hiltec Designs Ltd Coupler with power connection system
CN109555177B (zh) * 2019-01-25 2023-10-17 北京科技大学 一种液压自动快速切换对接平台
US11453993B2 (en) 2019-06-17 2022-09-27 Caterpillar Inc. Quick coupler with hydraulic coupling manifold
CN110725825B (zh) * 2019-11-20 2021-01-05 北京科技大学 一种多自由度自动定心装置、液压快换装置及救援装备
KR102403764B1 (ko) * 2020-04-14 2022-05-31 대모 엔지니어링 주식회사 퀵 체인지 오일퀵장치의 결합구조체
DE102020118938B3 (de) * 2020-07-17 2021-07-29 OilQuick Deutschland KG Schnellwechselsystem zum Wechseln von Anbaugeräten an einer Baumaschine
KR102237537B1 (ko) * 2020-09-15 2021-04-07 대모 엔지니어링 주식회사 퀵 체인지 디바이스
KR102226954B1 (ko) * 2020-09-18 2021-03-11 유제록 중장비 또는 산업용 기계와 작업장치 자동 연결장치의 자동 유압 연결장치
KR102226956B1 (ko) * 2020-09-18 2021-03-11 유제록 중장비 또는 산업용 기계와 작업장치의 유압 퀵커플러 자동 결합장치
KR102226955B1 (ko) * 2020-09-18 2021-03-11 유제록 중장비 또는 산업용 기계와 작업장치 연결 장치용 유압라인 자동 연결장치
KR102597983B1 (ko) * 2021-05-25 2023-11-07 주식회사 주현 자동 오일퀵 시스템
KR102360704B1 (ko) * 2021-08-25 2022-02-08 유제록 중장비용 회전링크 연결장치의 유압포트 구조
KR102368581B1 (ko) * 2021-08-25 2022-02-25 유제록 중장비용 회전링크 연결장치

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3243066A (en) * 1964-01-20 1966-03-29 Caterpillar Tractor Co Quick change means for loader attachments
GB1490087A (en) * 1974-11-06 1977-10-26 Martin W Work implement couplings
WO1991001414A1 (fr) 1989-07-18 1991-02-07 John Ieodor Sonerud Accouplement de systemes d'entrainement a un accessoire d'excavateur
US5108252A (en) * 1988-04-04 1992-04-28 Gilmore Transportation Services, Inc. Quick-disconnect coupling for a machine having a boom and a stick
FR2676765A1 (fr) * 1991-05-22 1992-11-27 Koehl Jean Marie Dispositif d'accouplement mecanique, hydraulique et electrique de maniere instantanee, automatique, commandee a distance.
DE29810118U1 (de) 1998-06-05 1998-10-29 Scherhaufer-Kremmer, Helmut, 85356 Freising Arbeitsmaschine
US5829337A (en) * 1997-08-28 1998-11-03 Caterpillar Inc. Method and apparatus for coupling a fluid-powered implement to a work machine
EP0976962A2 (fr) * 1998-07-29 2000-02-02 WEC Co. Connecteur à conduits multiples

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8125814U1 (de) * 1981-09-04 1981-12-03 Liebherr-Hydraulikbagger Gmbh, 7951 Kirchdorf Kupplung zum ankuppeln von arbeitsgeraeten an stiele von hydraulikbaggern
SE468320C (sv) † 1991-02-26 1998-01-26 Chrial Engineering Handelsbola Hydrauliskt kopplingsarrangemang
SE467742B (sv) * 1991-09-06 1992-09-07 Sonerud John Teodor Anordning foer snabbkoppling av ett redskap till en graevmaskin med samtidig anslutning till ett drivsystem
FR2684120B1 (fr) † 1991-11-27 1998-08-07 Emily Ets Systeme d'accouplement et de desaccouplement d'un chargeur a commande hydraulique pour tracteurs agricoles ou autres.
SE510139C3 (sv) † 1996-02-23 1999-05-25 Thure Ekman Hopkopplingsanordning vid en mobil foersta enhet och en till denna hopkopplingsbar andra enhet
US5727342A (en) * 1996-04-18 1998-03-17 Wain-Roy, Inc. Hydraulic latch pin assembly for coupling a tool to a construction equipment
DE19751292C1 (de) 1997-11-19 1999-02-18 Robert Riedlberger Vorrichtung zum Schutz von Verbindungselementen an Baugeräten vor Schmutz und Spritzwasser
US6428265B1 (en) * 2000-10-30 2002-08-06 Gilmore Industries, Inc. Power coupling mounting for a quick-disconnect coupling on a heavy-duty machine

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3243066A (en) * 1964-01-20 1966-03-29 Caterpillar Tractor Co Quick change means for loader attachments
GB1490087A (en) * 1974-11-06 1977-10-26 Martin W Work implement couplings
US5108252A (en) * 1988-04-04 1992-04-28 Gilmore Transportation Services, Inc. Quick-disconnect coupling for a machine having a boom and a stick
WO1991001414A1 (fr) 1989-07-18 1991-02-07 John Ieodor Sonerud Accouplement de systemes d'entrainement a un accessoire d'excavateur
FR2676765A1 (fr) * 1991-05-22 1992-11-27 Koehl Jean Marie Dispositif d'accouplement mecanique, hydraulique et electrique de maniere instantanee, automatique, commandee a distance.
US5829337A (en) * 1997-08-28 1998-11-03 Caterpillar Inc. Method and apparatus for coupling a fluid-powered implement to a work machine
DE29810118U1 (de) 1998-06-05 1998-10-29 Scherhaufer-Kremmer, Helmut, 85356 Freising Arbeitsmaschine
EP0976962A2 (fr) * 1998-07-29 2000-02-02 WEC Co. Connecteur à conduits multiples

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006020871B4 (de) * 2005-07-23 2009-02-26 Zeppelin Baumaschinen Gmbh Nachrüstbare Schnellkupplung für fernbetätigte Werkzeuge
EP1813730A2 (fr) * 2006-01-25 2007-08-01 Wilhelm Stoll Maschinenfabrik GmbH Chargeur frontal et cabine pour tracteur
EP1813730A3 (fr) * 2006-01-25 2007-11-14 Wilhelm Stoll Maschinenfabrik GmbH Chargeur frontal et cabine pour tracteur
US11441290B2 (en) 2019-03-27 2022-09-13 Kinshofer Gmbh Quick-hitch for construction vehicle tools
DE202019101747U1 (de) * 2019-03-27 2020-06-30 Kinshofer Gmbh Schnellwechsler für Baumaschinenwerkzeuge
DE102019126439A1 (de) * 2019-10-01 2021-04-01 Liebherr-Werk Bischofshofen Gmbh Arbeitsgerät, insbesondere Radlader
EP3800299A1 (fr) 2019-10-01 2021-04-07 Liebherr-Werk Bischofshofen GmbH Équipement, en particulier chargeur sur roues
DE102020110523A1 (de) 2020-04-17 2021-10-21 Liebherr-Hydraulikbagger Gmbh Schnellkupplung mit Zentriervorrichtung
US20210324600A1 (en) * 2020-04-17 2021-10-21 Liebherr-Hydraulikbagger Gmbh Quick coupling having a centering device
EP3901378A1 (fr) 2020-04-17 2021-10-27 Liebherr-Hydraulikbagger GmbH Accouplement rapide pourvu de dispositif de centrage
US11970833B2 (en) * 2020-04-17 2024-04-30 Liebherr-Hydraulikbagger Gmbh Quick coupling having a centering device
EP4353910A1 (fr) 2022-10-12 2024-04-17 Liebherr-France SAS Machine de travail avec dispositif d'accouplement pour conduites transportant des fluides et procédé pour établir un état de fonctionnement d'une machine de travail
DE102022126522A1 (de) 2022-10-12 2024-04-18 Liebherr-France Sas Arbeitsmaschine mit Kupplungsvorrichtung für fluidführende Leitungen
EP4357538A1 (fr) 2022-10-21 2024-04-24 Liebherr-Hydraulikbagger GmbH Godet d'excavatrice
DE102022127836A1 (de) 2022-10-21 2024-05-02 Liebherr-Hydraulikbagger Gmbh Baggerlöffel

Also Published As

Publication number Publication date
CA2374679C (fr) 2009-02-10
CZ303239B6 (cs) 2012-06-13
EP1239087B2 (fr) 2017-01-18
CA2374679A1 (fr) 2002-09-09
JP2002348905A (ja) 2002-12-04
CZ2002828A3 (cs) 2002-10-16
PL200100B1 (pl) 2008-12-31
US20020157287A1 (en) 2002-10-31
EP1239087B1 (fr) 2012-01-18
CN1375601A (zh) 2002-10-23
RU2235829C2 (ru) 2004-09-10
US6813851B2 (en) 2004-11-09
PL352565A1 (en) 2002-09-23
CN1246540C (zh) 2006-03-22
JP4102578B2 (ja) 2008-06-18

Similar Documents

Publication Publication Date Title
EP1239087B1 (fr) Attache rapide
DE10159417C2 (de) Schnellkupplung
DE102006023420B4 (de) Schnellwechselvorrichtung
EP2857594B1 (fr) Système de chargeur frontal avec un mechanism de verrouillage
EP2812134B1 (fr) Outil de cintrage pourvu d'un dispositif de sécurité
DE4132889C2 (fr)
EP3715535B1 (fr) Dispositif de changement rapide pour outils de machines de construction
DE4003201C2 (de) Schnellkupplungsvorrichtung für Schmiede- und Transportmanipulatoren
EP0116684B1 (fr) Presse avec des guides de transfert échangeables simultanément avec les outils
EP0963688B1 (fr) Machine de travail
DE2640840C2 (fr)
CH699404A1 (de) Energieträgerkupplung, sowie Kupplung mit Energieträgerkupplung.
DE102004014824B4 (de) Schnellwechselvorrichtung mit einer hydraulischen Kupplung für die Medien an einem Baugerät
EP1388616A1 (fr) Dispositif pour accoupler et découpler les embouts de conduites d'alimentation en fluide
DE3020788C2 (de) Innenverschlußeinrichtung für einen Weichenantrieb
DE102020110523A1 (de) Schnellkupplung mit Zentriervorrichtung
DE10106363C1 (de) Pressenkopf für das Verbinden von Rohrleitungen
AT411839B (de) Frontlader
AT411838B (de) Frontlader
DE2359163A1 (de) Greifvorrichtung fuer langgestreckte koerper, die in aufnahmeoeffnungen eingesetzt und aus diesen herausgezogen werden sollen, insbesondere fuer brennelemente und regelstaebe in einem kernreaktor
DE102016108897B4 (de) Verbindungseinrichtung zum Verbinden eines Zugfahrzeugs mit einem Anhänger
DE10100449B4 (de) Schnellwechsler für Mehrschalengreifer
EP0601992B1 (fr) Commande d'aiguillage avec cylindre de commande hydraulique
DE2263839B2 (de) Verriegelungsvorrichtung zum lösbaren Verbinden des Mähtisches am Schrägförderkanal eines Mähdreschers
DE3518581A1 (de) Werkzeugwechseleinrichtung

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

17P Request for examination filed

Effective date: 20020722

AKX Designation fees paid

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

17Q First examination report despatched

Effective date: 20070704

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: AT

Ref legal event code: REF

Ref document number: 541992

Country of ref document: AT

Kind code of ref document: T

Effective date: 20120215

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

Ref country code: NL

Ref legal event code: T3

REG Reference to a national code

Ref country code: SE

Ref legal event code: TRGR

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 50215351

Country of ref document: DE

Effective date: 20120315

REG Reference to a national code

Ref country code: IE

Ref legal event code: FD4D

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120419

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120518

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120118

PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120118

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120118

Ref country code: MC

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20120331

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PLAX Notice of opposition and request to file observation + time limit sent

Free format text: ORIGINAL CODE: EPIDOSNOBS2

26 Opposition filed

Opponent name: CATERPILLAR INC.

Effective date: 20121018

REG Reference to a national code

Ref country code: DE

Ref legal event code: R026

Ref document number: 50215351

Country of ref document: DE

Effective date: 20121018

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20120331

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20120331

PLAF Information modified related to communication of a notice of opposition and request to file observations + time limit

Free format text: ORIGINAL CODE: EPIDOSCOBS2

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120429

REG Reference to a national code

Ref country code: AT

Ref legal event code: MM01

Ref document number: 541992

Country of ref document: AT

Kind code of ref document: T

Effective date: 20120306

PLBB Reply of patent proprietor to notice(s) of opposition received

Free format text: ORIGINAL CODE: EPIDOSNOBS3

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20120306

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120118

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20120306

PLAB Opposition data, opponent's data or that of the opponent's representative modified

Free format text: ORIGINAL CODE: 0009299OPPO

PLAY Examination report in opposition despatched + time limit

Free format text: ORIGINAL CODE: EPIDOSNORE2

R26 Opposition filed (corrected)

Opponent name: CATERPILLAR INC.

Effective date: 20121018

PLAH Information related to despatch of examination report in opposition + time limit modified

Free format text: ORIGINAL CODE: EPIDOSCORE2

PLBC Reply to examination report in opposition received

Free format text: ORIGINAL CODE: EPIDOSNORE3

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 15

RIC2 Information provided on ipc code assigned after grant

Ipc: E02F 3/36 20060101ALI20160503BHEP

Ipc: E02F 9/22 20060101AFI20160503BHEP

PUAH Patent maintained in amended form

Free format text: ORIGINAL CODE: 0009272

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: PATENT MAINTAINED AS AMENDED

27A Patent maintained in amended form

Effective date: 20170118

AK Designated contracting states

Kind code of ref document: B2

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

REG Reference to a national code

Ref country code: DE

Ref legal event code: R102

Ref document number: 50215351

Country of ref document: DE

REG Reference to a national code

Ref country code: SE

Ref legal event code: RPEO

REG Reference to a national code

Ref country code: NL

Ref legal event code: FP

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 16

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 17

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 20210323

Year of fee payment: 20

Ref country code: FI

Payment date: 20210325

Year of fee payment: 20

Ref country code: FR

Payment date: 20210323

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 20210322

Year of fee payment: 20

Ref country code: DE

Payment date: 20210325

Year of fee payment: 20

Ref country code: BE

Payment date: 20210320

Year of fee payment: 20

Ref country code: GB

Payment date: 20210323

Year of fee payment: 20

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20210331

Year of fee payment: 20

REG Reference to a national code

Ref country code: DE

Ref legal event code: R071

Ref document number: 50215351

Country of ref document: DE

REG Reference to a national code

Ref country code: NL

Ref legal event code: MK

Effective date: 20220305

REG Reference to a national code

Ref country code: GB

Ref legal event code: PE20

Expiry date: 20220305

REG Reference to a national code

Ref country code: BE

Ref legal event code: MK

Effective date: 20220306

REG Reference to a national code

Ref country code: FI

Ref legal event code: MAE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION

Effective date: 20220305

REG Reference to a national code

Ref country code: SE

Ref legal event code: EUG