EP0580000B1 - Quick coupling - Google Patents

Quick coupling Download PDF

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Publication number
EP0580000B1
EP0580000B1 EP93110637A EP93110637A EP0580000B1 EP 0580000 B1 EP0580000 B1 EP 0580000B1 EP 93110637 A EP93110637 A EP 93110637A EP 93110637 A EP93110637 A EP 93110637A EP 0580000 B1 EP0580000 B1 EP 0580000B1
Authority
EP
European Patent Office
Prior art keywords
crosshead
quick change
arrangement according
locking
change arrangement
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
EP93110637A
Other languages
German (de)
French (fr)
Other versions
EP0580000A1 (en
Inventor
Georg Fengler
Jürgen Irrgang
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.)
CNH Industrial Baumaschinen GmbH
CNH Industrial Italia SpA
Original Assignee
O&K Orenstein and Koppel 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
Application filed by O&K Orenstein and Koppel GmbH filed Critical O&K Orenstein and Koppel GmbH
Publication of EP0580000A1 publication Critical patent/EP0580000A1/en
Application granted granted Critical
Publication of EP0580000B1 publication Critical patent/EP0580000B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • E02F3/3631—Devices to connect tools to arms, booms or the like of the quick acting type, e.g. controlled from the operator seat with a hook and a transversal locking element

Definitions

  • the invention relates to a quick-change device for attachments to be relocated to the lifting frame of a carrier vehicle according to the generic part of the first claim.
  • an adapter for front loader attachments is known, with which a tool, such as a shovel or fork, can be coupled to a vehicle body.
  • the adapter can be used for coupling tools of various types and sizes.
  • the adapter includes side brackets and a middle bracket, which are rigidly connected to each other by a support frame and are rotatably connected in a straight line with a pair of lifting arms and a rotating arm protruding from the vehicle body. Disadvantages of this adapter are essentially seen in that a relatively complex construction is created here through the use of diverse components, which ultimately results in a not inconsiderable increase in weight.
  • DE-A 32 00 800 shows a loading shovel arrangement for the optional pivoting forward or sideways, with a shovel arm and a shovel carrier which can be detachably coupled to an up and down and swiveling support frame of a shovel loader by means of upper and lower coupling elements.
  • this is connected to the carrier vehicle in such a way that the shovel is hooked in at the top and hydraulically actuable bolts can be inserted into the corresponding eyelets in the area of the crossmember.
  • the disadvantage here is that a further level must be provided in the area of the traverse for the locking device, so that its constructional effort increases.
  • the goal underlying the subject matter of the invention is seen in a weight reduction compared to the St.d.T. to design a quick-change device that is as simple as possible, the essential actuating elements of which are provided in a protected form.
  • the pair of tie rod links can be arranged near the tie rod, it being easy to see for the driver of the carrier vehicle during the changing process.
  • the locking mechanism is actuated hydraulically, and the necessary hydraulic lines can be permanently installed at the transition of the mast into the area of the quick-change device, since the traverse does not perform any relative movement.
  • the locking cylinder, the locking bolts and the guides and seals that interact with them are arranged absolutely protected inside the crossmember and are therefore no longer exposed to the soiling or damage that normally occurs.
  • FIG. 1 shows the mast 1 together with a shovel-shaped attachment 2 of a carrier vehicle, not shown.
  • the lifting frame 1 is formed from two lifting arms 3, which are arranged essentially parallel to one another, one ends of which are mounted on the carrier vehicle (not shown).
  • the other ends 4 take a tubular cross member 5 between them, which is shown in more detail in FIG.
  • a pair of tie rod links 6, which is provided in the region of its free end 7 with bolt-shaped lugs 8, which engage in corresponding eyes 9 of the shovel-shaped attachment 2, engages on the tubular traverse 5.
  • a tie rod 10 is articulated between the tie rod pair 6, which is connected to a further lever 11, at the free end of which a cylinder (tilt cylinder), not shown, engages.
  • This lever 11 in turn has a pivot point 12 which is mounted via a further lever 13 between the lifting arms 3 of the mast 1.
  • the cross member 5 is stationary in the axis of rotation 14 of the attachment 2, i.e. not rotatable, arranged
  • Figure 2 shows a partial view of the mast 1 with the lifting arms 3, the pair of tie rods 6, the crossbar 5, the link 10, the bolt-shaped lugs 8 and the levers 11 and 13. Furthermore, the bearing area 15, on which the mast 1 with the carrier vehicle, not shown, can be connected.
  • Figure 3 shows a partial representation of the tubular crossmember 5, which is equipped in its interior 16 with the following components: a locking cylinder 17, locking bolts 18,19, piston rods 20,21, guides 22,23 for the locking bolts 18,19 and O-rings 24, 25, 26, 27 as sealing elements between the guides 22, 23 and the locking bolts 18, 19.
  • the locking bolts 18, 19 are in the area their free ends 28, 29 are chamfered, in order to be easier to insert into the corresponding recesses of the respective attachment 2 in this way.
  • two bearing areas 31, 32 are provided approximately halfway up, which serve to accommodate the pair of tension links 6.
  • the crossmember 5 is provided in the axis of rotation 14 of the attachment 2 (not shown further here), but the crossmember 5 cannot be rotated. Accordingly, the hydraulic connection 33 can also be provided stationary at a specific point 34 of the crossmember 5.
  • the hydraulic lines 35 and 36 for supplying the corresponding pressure medium are indicated.

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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)
  • Forklifts And Lifting Vehicles (AREA)
  • Vehicle Body Suspensions (AREA)
  • Forging (AREA)
  • Paper (AREA)
  • Excavating Of Shafts Or Tunnels (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Handcart (AREA)
  • Vehicle Cleaning, Maintenance, Repair, Refitting, And Outriggers (AREA)
  • Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)

Abstract

A quick coupling is proposed for attachments (2) to be displaced on the lifting frame (1) of a carrier vehicle, the lifting frame (1) being formed from two lifting arms (3) running essentially parallel to one another. The lifting arms (3) are mounted at one end on the carrier vehicle and the other ends (4) of the lifting arms (3) accommodate between them a hollow body designed as a crosspiece (5). A drawbar link pair (6) is mounted on the crosspiece (5) in an articulated manner. The free end of the drawbar link pair (6) can be connected to elements of the respective attachment (2) and in the area of its extension interacts with at least one drawbar mounted in an articulated manner. The drawbar in turn can be connected to further components provided in the area of the lifting frame (1), and the locking device for locking the lifting frame to the respective attachment is provided inside the hollow body. <IMAGE>

Description

Die Erfindung betrifft eine Schnellwechselvorrichtung für an dem Hubgerüst eines Trägerfahrzeuges zu verlagernde Anbaugeräte gemäß gattungsbildendem Teil des ersten Patentanspruches.The invention relates to a quick-change device for attachments to be relocated to the lifting frame of a carrier vehicle according to the generic part of the first claim.

Durch die DE-OS 39 24 313 ist ein Adapter für Frontladeranbaugeräte bekannt, mit dem ein Werkzeug, wie beispielsweise eine Schaufel oder eine Gabel an einem Fahrzeugkörper gekoppelt werden kann. Der Adapter kann für die Koppelung von Werkzeugen unterschiedlichster Art und Größe verwendet werden. Der Adapter beinhalten Seitenkonsolen sowie eine mittlere Konsole, die durch einen Stützrahmen starr miteinander verbunden sind und in Geradeausrichtung mit einem Hubarmpaar und einem vom Fahrzeugkörper hervorstehenden Dreharm drehbar verbunden sind. Nachteile dieses Adapters werden im wesentlichen dann gesehen, daß hier durch den Einsatz vielfältiger Bauelemente eine verhältnismäßig aufwendige Konstruktion geschaffen wird, die sich letztendlich in einer nicht unbeträchtlichen Gewichtserhöhung bemerkbar macht.From DE-OS 39 24 313 an adapter for front loader attachments is known, with which a tool, such as a shovel or fork, can be coupled to a vehicle body. The adapter can be used for coupling tools of various types and sizes. The adapter includes side brackets and a middle bracket, which are rigidly connected to each other by a support frame and are rotatably connected in a straight line with a pair of lifting arms and a rotating arm protruding from the vehicle body. Disadvantages of this adapter are essentially seen in that a relatively complex construction is created here through the use of diverse components, which ultimately results in a not inconsiderable increase in weight.

Der DE-A 32 00 800 ist eine Ladeschaufelanordnung für die wahlweise Verschwenkung vorwärts oder seitwärts zu entnehmen, mit einer Schaufelarme und einem Schaufelträger, der an einem auf- und abbewegbaren und nach vome schwenkbaren Trägerrahmen eines Schaufelladers lösbar durch obere und untere Koppelelemente ankoppelbar ist. Bei Koppelelementen an einem Schnellwechselrahmen, der eine obere Einhakverbindung und untere Ösen aufweist, wird dieser dergestalt mit dem Trägerfahrzeug verbunden, daß die Schaufel oben eingehakt wird und hydraulisch betätigbare Bolzen im Bereich der Traverse in die korrespondierenden Ösen einbringbar sind. Nachteilig ist hier festzustellen, daß für die Verriegelungseinrichtung eine weitere Ebene im Bereich der Traverse vorgesehen werden muß, so daß sich deren konstruktiver Aufwand erhöht.DE-A 32 00 800 shows a loading shovel arrangement for the optional pivoting forward or sideways, with a shovel arm and a shovel carrier which can be detachably coupled to an up and down and swiveling support frame of a shovel loader by means of upper and lower coupling elements. In the case of coupling elements on a quick-change frame which has an upper hooking connection and lower eyelets, this is connected to the carrier vehicle in such a way that the shovel is hooked in at the top and hydraulically actuable bolts can be inserted into the corresponding eyelets in the area of the crossmember. The disadvantage here is that a further level must be provided in the area of the traverse for the locking device, so that its constructional effort increases.

Das dem Erfindungsgegenstand zugrunde liegende Ziel wird darin gesehen, bei einer Gewichtsreduzierung gegenüber dem St.d.T. eine möglichst einfach bauende Schnellwechselvorrichtung zu konzipieren, deren wesentliche Betätigungselemente in geschützter Form vorgesehen sind.The goal underlying the subject matter of the invention is seen in a weight reduction compared to the St.d.T. to design a quick-change device that is as simple as possible, the essential actuating elements of which are provided in a protected form.

Dieses Ziel wird erfindungsgemäß durch die im Kennzeichen des ersten Patentanspruches angegebenen Merkmale erreicht.This goal is achieved according to the invention by the features specified in the characterizing part of the first claim.

Mit der rohrförmig ausgebildeten Traverse, die vorzugsweise im Bereich der Drehachse des jeweiligen Anbaugerätes vorgesehen ist, werden folgende wesentliche Funktionen erfüllt:

  • das tragende Teil des Hubgerüstes ist fest eingeschweißt,
  • innerhalb der Rohrtraverse werden sowohl der Verriegelungszylinder als auch die Verriegelungsbolzen samt Führungen und Dichtelemente aufgenommen,
  • außerhalb der Rohrtraverse wird auf dem Außendurchmesser das Zuglenkerpaar nahe der Zugstange gelagert.
The following essential functions are fulfilled with the tubular crossmember, which is preferably provided in the area of the axis of rotation of the respective attachment:
  • the load-bearing part of the mast is welded in,
  • The locking cylinder as well as the locking bolts, including guides and sealing elements, are accommodated within the tubular crossbeam.
  • outside of the tubular traverse, the pair of tension links is mounted on the outside diameter near the tie rod.

Die Bewegung des Anbaugerätes wird durch das außerhalb der Rohrtraverse angeordnete Zugstangenlenkerpaar herbeigeführt, wobei diese Bewegung durch die starr mit den Hubarmen verbundene Traverse nicht mitgemacht wird. Infolge des konstruktiven Aufbaus kann gegenüber herkömmlichen Schnellwechseleinrichtungen eine beträchtliche Gewichtsersparnis erreicht werden, wobei infolge der geometrischen Verhältnisse der einzelnen Bauteile zueinander nur verhältnismäßig geringe Gewichte bewegt werden und ihre Lage verändern müssen. Somit wird ein verbesserter Wirkungsgrad bei lediglich geringer Schwerpunktverlagerung realisiert.The movement of the attachment is brought about by the pair of tie rods arranged outside the tubular traverse, this movement not being accompanied by the crossbar rigidly connected to the lifting arms. As a result of the structural design, considerable weight savings can be achieved compared to conventional quick-change devices, with only relatively small weights being moved due to the geometrical relationships of the individual components and having to change their position. This results in an improved efficiency with only a slight shift in the center of gravity.

Infolge der Lagerung des Zugstangenlenkerpaares unmittelbar auf der Rohrtraverse kann das Zugstangenlenkerpaar nahe der Zugstange angeordnet werden, wobei es für den Fahrer des Trägerfahrzeuges beim Wechselvorgang gut einsehbar ist. Die Verriegelung wird hydraulisch betätigt, wobei die notwendigen hydraulischen Leitungen am Übergang des Hubgerüstes in den Bereich der Schnellwechselvorrichtung fest installiert werden können, da die Traverse keine Relativbewegung durchführt. Der Verriegelungszylinder, die Verriegelungsbolzen sowie die damit zusammenwirkenden Führungen und Dichtungen sind absolut geschützt innerhalb der Traverse angeordnet und sind somit den normalerweise auftretenden Verschmutzungen oder Beschädigungen nicht mehr ausgesetzt.As a result of the mounting of the pair of tie rod links directly on the tubular traverse, the pair of tie rod links can be arranged near the tie rod, it being easy to see for the driver of the carrier vehicle during the changing process. The locking mechanism is actuated hydraulically, and the necessary hydraulic lines can be permanently installed at the transition of the mast into the area of the quick-change device, since the traverse does not perform any relative movement. The locking cylinder, the locking bolts and the guides and seals that interact with them are arranged absolutely protected inside the crossmember and are therefore no longer exposed to the soiling or damage that normally occurs.

Die Erfindung ist anhand eines Ausführungsbeispieles in der Zeichnung dargestellt und wird wie folgt beschrieben. Es zeigen:

Figur 1 -
Hubgerüst eines nicht weiter dargestellten Trägerfahrzeuges mit einem als Schaufel ausgebildeten Anbaugerät
Figur 2 -
Teildarstellung des Hubgerüstes
Figur 3 -
Teildarstellung der Traverse samt Verriegelungseinrichtung.
The invention is illustrated in the drawing using an exemplary embodiment and is described as follows. Show it:
Figure 1 -
Mast of a carrier vehicle, not shown, with an attachment designed as a shovel
Figure 2 -
Partial representation of the mast
Figure 3 -
Partial representation of the traverse including locking device.

Figur 1 zeigt das Hubgerüst 1 samt schaufelförmigem Anbaugerät 2 eines nicht weiter dargestellten Trägerfahrzeuges. Das Hubgerüst 1 wird gebildet aus zwei Hubarmen 3, die im wesentlichen parallel zueinander angeordnet sind, deren eine Enden am nicht weiter dargestellten Trägerfahrzeug gelagert sind. Die anderen Enden 4 nehmen eine rohrförmig ausgebildete Traverse 5 zwischen sich auf, die in Figur 3 näher dargestellt ist. An der Rohrtraverse 5 greift ein Zugstangenlenkerpaar 6 an, das im Bereich seines freien Endes 7 mit bolzenförmigen Ansätzen 8 versehen ist, die in entsprechende Augen 9 des schaufelförmigen Anbaugerätes 2 eingreifen. Im Bereich seiner Erstreckung ist zwischen dem Zugstangenlenkerpaar 6 eine Zugstange 10 gelenkig gelagert, die mit einem weiteren Hebel 11 verbunden ist, an dessen freien Ende ein nicht weiter dargestellter Zylinder (Kippzylinder) angreift. Dieser Hebel 11 weist wiederum einen Schwenkpunkt 12 auf, der über einen weiteren Hebel 13 zwischen den Hubarmen 3 des Hubgerüstes 1 gelagert ist. Die Traverse 5 ist hierbei in der Drehachse 14 des Anbaugerätes 2 stationär, d.h. nicht verdrehbar, angeordnet.Figure 1 shows the mast 1 together with a shovel-shaped attachment 2 of a carrier vehicle, not shown. The lifting frame 1 is formed from two lifting arms 3, which are arranged essentially parallel to one another, one ends of which are mounted on the carrier vehicle (not shown). The other ends 4 take a tubular cross member 5 between them, which is shown in more detail in FIG. A pair of tie rod links 6, which is provided in the region of its free end 7 with bolt-shaped lugs 8, which engage in corresponding eyes 9 of the shovel-shaped attachment 2, engages on the tubular traverse 5. In the area of its extension, a tie rod 10 is articulated between the tie rod pair 6, which is connected to a further lever 11, at the free end of which a cylinder (tilt cylinder), not shown, engages. This lever 11 in turn has a pivot point 12 which is mounted via a further lever 13 between the lifting arms 3 of the mast 1. The cross member 5 is stationary in the axis of rotation 14 of the attachment 2, i.e. not rotatable, arranged.

Figur 2 zeigt als Teildarstellung ausschließlich das Hubgerüst 1 mit den Hubarmen 3, dem Zugstangenlenkerpaar 6, der Traverse 5, dem Zuglenker 10, den bolzenförmigen Ansätzen 8 sowie den Hebeln 11 und 13. Ferner erkennbar ist der Lagerbereich 15, an welchem das Hubgerüst 1 mit dem nicht weiter dargestellten Trägerfahrzeug verbindbar ist.Figure 2 shows a partial view of the mast 1 with the lifting arms 3, the pair of tie rods 6, the crossbar 5, the link 10, the bolt-shaped lugs 8 and the levers 11 and 13. Furthermore, the bearing area 15, on which the mast 1 with the carrier vehicle, not shown, can be connected.

Figur 3 zeigt als Teildarstellung die rohrförmig ausgebildete Traverse 5, die in ihrem Innenbereich 16 mit folgenden Bauteilen bestückt ist: einem Verriegelungszylinder 17, Verriegelungsbolzen 18,19, Kolbenstangen 20,21, Führungen 22,23 für die Verriegelungsbolzen 18,19 sowie O-Ringe 24,25,26,27 als Dichtelemente zwischen den Führungen 22,23 und den Verriegelungsbolzen 18,19. Die Verriegelungsbolzen 18,19 sind im Bereich ihrer freien Enden 28,29 angeschrägt ausgebildet, um auf diese Art und Weise leichter in die korrespondierenden Ausnehmungen des jeweiligen Anbaugerätes 2 einführbar zu sein.Figure 3 shows a partial representation of the tubular crossmember 5, which is equipped in its interior 16 with the following components: a locking cylinder 17, locking bolts 18,19, piston rods 20,21, guides 22,23 for the locking bolts 18,19 and O-rings 24, 25, 26, 27 as sealing elements between the guides 22, 23 and the locking bolts 18, 19. The locking bolts 18, 19 are in the area their free ends 28, 29 are chamfered, in order to be easier to insert into the corresponding recesses of the respective attachment 2 in this way.

Am Außendurchmesser 30 der Traverse 5 sind etwa auf halber Höhe zwei Lagerbereiche 31,32 vorgesehen, die zur Aufnahme des Zuglenkerpaares 6 dienen. Die Traverse 5 ist, wie bereits angesprochen, in der Drehachse 14 des hier nicht weiter dargestellten Anbaugerätes 2 vorgesehen, wobei die Traverse 5 jedoch nicht verdrehbar ist. Demzufolge kann der Hydraulikanschluß 33 an einer bestimmten Stelle 34 der Traverse 5 ebenfalls stationär vorgesehen werden. Angedeutet sind die Hydraulikleitungen 35 und 36 zur Zufuhr des entsprechenden Druckmediums.On the outer diameter 30 of the crossmember 5, two bearing areas 31, 32 are provided approximately halfway up, which serve to accommodate the pair of tension links 6. As already mentioned, the crossmember 5 is provided in the axis of rotation 14 of the attachment 2 (not shown further here), but the crossmember 5 cannot be rotated. Accordingly, the hydraulic connection 33 can also be provided stationary at a specific point 34 of the crossmember 5. The hydraulic lines 35 and 36 for supplying the corresponding pressure medium are indicated.

Claims (6)

  1. Quick change arrangement for attachment devices (2) to be mounted on the lifting structure (1) of a carrier vehicle, the lifting structure (1) being formed by two lifting arms (3) that extend substantially parallel with one another, which are mounted at one end (15) on the carrier vehicle and the other ends of which receive between them a crosshead (5) that co-operates with a locking device, on which crosshead there is mounted in articulated manner a pair of connecting rod levers (6), the free ends (7) of which are connectable to elements (9) of the attachment device (2) in question, and which somewhere along its length co-operates with at least one articulatedly mounted connecting rod (10) which is in turn connectable to further components (11) provided in the region of the lifting structure (1), the locking device being formed by at least one hydraulically operable locking cylinder (17) which co-operates with at least one locking bolt (18, 19) guided in the region of the crosshead (5), characterised in that
    - the crosshead (5) is of tubular construction and is connected non-rotatably to the lifting arms (3) of the lifting structure (1), and
    - the crosshead (5) is arranged on the axis (14) of rotation of the attachment device (2) in question.
  2. Quick change arrangement according to claim 1, characterised by a double-acting hydraulic cylinder (17), each of the piston rods (20, 21) of which is connected to a respective locking bolt (18, 19).
  3. Quick change arrangement according to claims 1 and 2, characterised in that the respective guide (22, 23) for each of the locking bolts (18, 19) is provided in the respective end region of the crosshead (5).
  4. Quick change arrangement according to claims 1 to 3, characterised by sealing elements (24-27) provided in the region of the guides (22, 23).
  5. Quick change arrangement according to claims 1 to 4, characterised in that at least one hydraulic connection (33) is provided somewhere (34) along the length of the crosshead (5).
  6. Quick change arrangement according to claims 1 to 5, characterised in that the crosshead (5) is constructed to have on its outer diameter (30) two bearing regions (31, 32), provided approximately half way along its length, for receiving the pair of connecting rod levers (6).
EP93110637A 1992-07-18 1993-07-03 Quick coupling Expired - Lifetime EP0580000B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4223734A DE4223734C2 (en) 1992-07-18 1992-07-18 Quick change device
DE4223734 1992-07-18

Publications (2)

Publication Number Publication Date
EP0580000A1 EP0580000A1 (en) 1994-01-26
EP0580000B1 true EP0580000B1 (en) 1996-09-25

Family

ID=6463567

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93110637A Expired - Lifetime EP0580000B1 (en) 1992-07-18 1993-07-03 Quick coupling

Country Status (4)

Country Link
EP (1) EP0580000B1 (en)
AT (1) ATE143439T1 (en)
DE (2) DE4223734C2 (en)
DK (1) DK0580000T3 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9315868U1 (en) * 1993-10-18 1995-02-16 Liebherr-Hydraulikbagger GmbH, 88457 Kirchdorf clutch
KR200271162Y1 (en) * 1999-05-11 2002-04-10 이원해 coupler for excavator
BRPI0912188A2 (en) 2008-05-07 2015-10-06 Attachment Technologies Inc zero-displacement charger coupling system and components.
DE102019117715A1 (en) 2018-06-29 2020-01-02 Liebherr-Werk Bischofshofen Gmbh working machine
USD1026968S1 (en) 2022-11-04 2024-05-14 Deere & Company Loader carrier for implements

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3200800C2 (en) * 1982-01-13 1986-08-14 Kramer-Werke GmbH, 7770 Überlingen Shovel loader
DE3716911A1 (en) * 1987-05-20 1988-12-08 Weyhausen Gmbh & Co Kg Maschin Working vehicle with a set of interchangeable implements and a quick-change device for the implements
DE3808313A1 (en) * 1988-03-12 1989-09-28 Kramer Werke Gmbh WORK VEHICLE, IN PARTICULAR LOADER
US4984957A (en) * 1988-08-08 1991-01-15 Kubota, Ltd. Work-implement adapter for front loader
DE4102370A1 (en) * 1990-02-12 1991-08-14 Walter Fritzel Excavator with bucket secured by quick action coupling - which is actuated by compressed air stored in hollow outer arm
DE4010224C2 (en) * 1990-03-30 1994-05-19 Porsche Ag Quick change device

Also Published As

Publication number Publication date
ATE143439T1 (en) 1996-10-15
DK0580000T3 (en) 1996-11-11
DE4223734C2 (en) 1996-04-18
EP0580000A1 (en) 1994-01-26
DE59303944D1 (en) 1996-10-31
DE4223734A1 (en) 1994-01-20

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