EP1329559A2 - Quick coupling device for work machines - Google Patents

Quick coupling device for work machines Download PDF

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Publication number
EP1329559A2
EP1329559A2 EP03400001A EP03400001A EP1329559A2 EP 1329559 A2 EP1329559 A2 EP 1329559A2 EP 03400001 A EP03400001 A EP 03400001A EP 03400001 A EP03400001 A EP 03400001A EP 1329559 A2 EP1329559 A2 EP 1329559A2
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EP
European Patent Office
Prior art keywords
locking
quick
hydraulic
change device
aligned
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.)
Withdrawn
Application number
EP03400001A
Other languages
German (de)
French (fr)
Other versions
EP1329559A3 (en
Inventor
Thomas Sauer
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.)
Caterpillar Inc
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Individual
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
Priority claimed from DE2002100836 external-priority patent/DE10200836A1/en
Application filed by Individual filed Critical Individual
Publication of EP1329559A2 publication Critical patent/EP1329559A2/en
Publication of EP1329559A3 publication Critical patent/EP1329559A3/en
Withdrawn legal-status Critical Current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
    • E02F3/3627—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 longitudinal locking element
    • 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
    • E02F3/3636—Devices to connect tools to arms, booms or the like of the quick acting type, e.g. controlled from the operator seat using two or four movable transversal pins
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
    • E02F3/36—Component parts
    • E02F3/3604—Devices to connect tools to arms, booms or the like
    • E02F3/3609—Devices to connect tools to arms, booms or the like of the quick acting type, e.g. controlled from the operator seat
    • E02F3/3654—Devices to connect tools to arms, booms or the like of the quick acting type, e.g. controlled from the operator seat with energy coupler, e.g. coupler for hydraulic or electric lines, to provide energy to drive(s) mounted on the tool
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
    • E02F3/36—Component parts
    • E02F3/3604—Devices to connect tools to arms, booms or the like
    • E02F3/3609—Devices to connect tools to arms, booms or the like of the quick acting type, e.g. controlled from the operator seat
    • E02F3/3663—Devices to connect tools to arms, booms or the like of the quick acting type, e.g. controlled from the operator seat hydraulically-operated

Definitions

  • the invention relates to quick couplers for connecting tools Machines with simultaneous connection of hydraulic lines.
  • the invention is based on the object Hydraulic coupling elements in the locking parts of the quick coupler to integrate, and thus a secure, protected and centered at the same time Ensure coupling of work equipment and hydraulic lines.
  • the Locking parts thus form an external protection against dirt and Damage to the hydraulic coupling elements and lead to a correctly positioned merging of them in the course of the Locking way.
  • One or more can be per locking part Hydraulic couplings and lines can be integrated.
  • the quick changer can have one or more locking parts. The shape and the Any location for the locking parts in the quick coupler.
  • the hydraulic coupling elements of the quick coupler and the attachments can be fixed, elastic or spring loaded.
  • the hydraulic clutch elements correspond to usual matching male / female Clutch parts.
  • the quick coupler 1 shown for loading machines is through cylinder 4 hydraulically lockable, but it can also be mechanically or be operated electromagnetically.
  • an implement e.g. a High tip bucket to be picked up with the quick coupler 1 one grabs the hook 15 of the upper quick coupler holder 3 Bucket holder 2.
  • the parts brought to the system are then locked by the hydraulic cylinder 4 by the First move the locking bolt 5 into the locking openings 13.
  • the way of the locking bolts 5 is limited by the stop 39.
  • the counter-coupling member 25 is with Spring force 26 constantly pressed against the locking bolt 5, so that too an occurring movement between attachment and quick coupler is balanced.
  • the counter-coupling elements can also without Spring-loaded, fixed or flexible storage. The hydraulic connection is therefore securely closed. Due to the internal construction of the Hydraulic coupling elements minimize the risk of external damage and ensures a centered moving together. As a rule, an inlet 17 and an outlet 16 are sufficient for a loader a hydraulic work function of the attachment. However, it can also Locking parts (Fig.6, Fig.7) used with multiple couplings to enable multiple hydraulic work functions. It can also use multiple locking parts with single couplings become.
  • the invention is for excavator quick couplers in FIGS. 4 and 5 presented in a self-explanatory manner.

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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)
  • Shovels (AREA)

Abstract

The quick change mechanism (1) has two side pieces (12) joined by crossbars. The top crossbar (3) projects outside the side pieces and may be engaged by hooks (15) on frame pieces (14) on the loading tool (2). The lower crossbar (11) supports a hydraulic locking system (4,5) and has a hydraulic plug-in system (13,24). Flexible and rigid hydraulic lines (7,8,16,17,21) are connected to the system.

Description

Die Erfindung betrifft Schnellwechsler zur Verbindung von Arbeitsgeräten an Arbeitsmaschinen unter gleichzeitigem Verbinden von Hydraulikleitungen.The invention relates to quick couplers for connecting tools Machines with simultaneous connection of hydraulic lines.

Bei Bagger- und Laderarbeiten ist der Austausch von diversen Arbeitsgeräten z.B. Schwenklöffeln, Hochkippschaufeln, Traggabelausrüstungen, Fräsen, Hydraulikhämmern oder Kombischaufeln immer mehr üblich geworden. Es ist oft notwendig, diese Arbeitsgeräte mehrmals am Tag zu wechseln, was den Fahrer zwingt, entweder die dazugehörigen Hydraulikschläuche manuell zu verbinden und zu lösen, oder einen Schnellwechsler mit gleichzeitigem Hydraulikschlauchkuppler zu verwenden. Solche Systeme sind z.B. aus den Patentschriften DE 69210405 T 2 und WO 97/30231 bekannt.
Nachteilig an diesen Schnellwechslern ist die aufwendige Bauweise der Hydraulikkupplungsorgane, welche auf die bewegbaren Schnellwechslerverriegelungsteile angebracht sind. Die Hydraulikkupplungsorgane sind bei dieser Anbauweise, durch Baustellenschmutz und äußeren Beschädigungen in ihrer Funktion gefährdet. Die Probleme des Verkanntens und Verklemmens während des Ver- und Entriegelungvorganges durch die paralell aufgebauten und verlaufenden Bewegungen sind nachteilig. Baustellenschmutz, der sich hauptsächlich auf den Hydraulikkupplungsorganen der Anbaugeräte absetzt kann beim Kuppeln derselben in das Hydrauliksystem der Arbeitsmaschine gelangen und zu Pumpenschäden führen.In the case of excavator and loader work, the exchange of various tools, such as swivel spoons, high-tip buckets, carrying fork equipment, milling, hydraulic hammers or combination buckets, has become more and more common. It is often necessary to change these implements several times a day, which forces the driver to either connect and disconnect the associated hydraulic hoses manually, or to use a quick coupler with a hydraulic hose coupler at the same time. Such systems are known, for example, from the patent specifications DE 69210405 T 2 and WO 97/30231.
A disadvantage of these quick couplers is the complex construction of the hydraulic coupling elements which are attached to the movable quick coupler locking parts. The function of the hydraulic coupling elements in this type of installation is endangered by dirt on the construction site and external damage. The problems of jamming and jamming during the locking and unlocking process due to the parallel and moving movements are disadvantageous. Construction site dirt that mainly settles on the hydraulic coupling elements of the attachments can get into the hydraulic system of the working machine when coupling them and lead to pump damage.

Ausgehend hiervon liegt der Erfindung die Aufgabe zugrunde die Hydraulikkupplungsorgane in den Verriegelungsteilen des Schnellwechslers zu integrieren, und somit eine gleichzeitig sichere, geschützte und zentrierte Kupplung von Arbeitsgerät und Hydraulikleitungen zu gewährleisten. Die Verriegelungsteile bilden somit einen äußeren Schutz gegen Schmutz und Beschädigung der Hydraulikkupplungsorgane und führen zwangsweise zu einer korrekt positionierten Zusammenführung derselben im Laufe des Verriegelungsweges. Pro Verriegelungsteil können eine oder mehrere Hydraulikkupplungen und Leitungen integriert sein. Der Schnellwechsler kann ein oder mehrere Verriegelungsteile aufweisen. Die Form und der Anbringungsplatz der Verriegelungsteile im Schnellwechsler sind beliebig. Die Hydraulikkupplungsorgane des Schnellwechslers und der Anbaugeräte können fix, elastisch oder gefedert gelagert sein. Die Hydraulikkupplungsorgane entsprechen üblichen zusammenpassenden männlichen / weiblichen Kupplungsteilen. Proceeding from this, the invention is based on the object Hydraulic coupling elements in the locking parts of the quick coupler to integrate, and thus a secure, protected and centered at the same time Ensure coupling of work equipment and hydraulic lines. The Locking parts thus form an external protection against dirt and Damage to the hydraulic coupling elements and lead to a correctly positioned merging of them in the course of the Locking way. One or more can be per locking part Hydraulic couplings and lines can be integrated. The quick changer can have one or more locking parts. The shape and the Any location for the locking parts in the quick coupler. The hydraulic coupling elements of the quick coupler and the attachments can be fixed, elastic or spring loaded. The hydraulic clutch elements correspond to usual matching male / female Clutch parts.

Die Erfindung ist in verschiedenen Ausführungsvarianten in den Zeichnungen dargestellt und wird im Folgenden unter Bezugnahme auf die Zeichnungen näher beschrieben.

  • Fig.1 zeigt einen hydraulisch betätigten Schnellwechsler für Lader mit den erfindungsgemäßen Bauteilen, den in den Verriegelungsteilen innenliegenden Hydraulikleitungen und Hydraulikkupplungsorganen. Die Aufnahmehalterungen des Laderanbaugerätes sind mit den gegenseitig angehörigen Hydraulikkupplungsorganhalterungen ersichtlich.
  • Fig.2 zeigt den Verriegelungshydraulikzylinder des Schnellwechslers der Fig.1 im Halbschnitt.
  • Fig.3 zeigt die Verriegelungsaufnahme des Laderanbaugerätes der Fig.1 im Querschnitt mit den aufnehmenden Hydraulikkupplungsorganen in federnd gelagerter Ausführung.
  • Fig.4 zeigt einen hydraulisch betätigten Schnellwechsler für Bagger mit den erfindungsgemäßen Bauteilen der in den Verriegelungsteilen innenliegenden Hydraulikleitungen und Hydraulikkupplungsorganen, teilweise im Schnitt.
  • Fig.5 zeigt ein zum Schnellwechsler der Fig.4 dazupassendes Baggeranbaugerät, mit den in der Verriegelungsaufnahme befindlichen Hydraulikkupplungsorganen in elastisch gelagerter Bauweise, teilweise im Schnitt gezeichnet.
  • Fig.6 zeigt einen Verriegelungsbolzen mit mehrfach innenliegenden Hydraulikleitungen und Hydraulikkupplungen.
  • Fig.7 zeigt einen Verriegelungskeil mit mehrfach innenliegenden Hydraulikleitungen und Hydraulikkupplungen.
    • The invention is shown in different embodiment variants in the drawings and is described in more detail below with reference to the drawings.
  • 1 shows a hydraulically operated quick coupler for loaders with the components according to the invention, the hydraulic lines and hydraulic coupling elements located in the locking parts. The mounting brackets of the loader attachment can be seen with the mutually associated hydraulic coupling member brackets.
  • Figure 2 shows the locking hydraulic cylinder of the quick coupler of Figure 1 in half section.
  • 3 shows the locking receptacle of the loader attachment of FIG. 1 in cross section with the receiving hydraulic coupling elements in a spring-mounted design.
  • 4 shows a hydraulically actuated quick coupler for excavators with the components according to the invention of the hydraulic lines and hydraulic coupling members located in the locking parts, partly in section.
  • FIG. 5 shows an excavator attachment suitable for the quick coupler of FIG. 4, with the hydraulic coupling elements in the locking receptacle in an elastically mounted construction, partly drawn in section.
  • Fig. 6 shows a locking bolt with multiple internal hydraulic lines and hydraulic couplings.
  • Fig. 7 shows a locking wedge with multiple internal hydraulic lines and hydraulic couplings.

    • Die Erfindung wird anhand der Figuren 1 bis 3 erklärt.The invention is explained on the basis of FIGS. 1 to 3.

    Der abgebildete Schnellwechsler 1 für Lademaschinen ist durch Zylinder 4 hydraulisch verriegelbar, er kann aber auch mechanisch oder elektromagnetisch betätigbar sein. Sobald ein Arbeitsgerät, z.B. eine Hochkippschaufel mit dem Schnellwechsler 1 aufgenommen werden soll, ergreift man mit der oberen Schnellwechsleraufnahme 3 die Haken 15 der Schaufelaufnahme 2. Die zur Anlage gebrachten Teile werden daraufhin durch den Hydraulik-zylinder 4 verriegelt, indem sich die Verriegelungsbolzen 5 zunächst in die Verriegelungsöffnungen 13 bewegen. Derart positioniert und zentriert stoßen die innenliegenden (weibl.) Hydr. - kupplungsorgane 24 der sich weiterbewegenden Verriegelungsbolzen 5 auf die passenden Gegenkupplungsorgane 25 (männl.) der Kupplungseinheit 18 des Anbaugerätes. Der Weg der Verriegelungsbolzen 5 wird durch den Anschlag 39 begrenzt. Das Gegenkupplungsorgan 25 wird mit Federkraft 26 ständig gegen den Verriegelungsbolzen 5 gepreßt, so daß auch ein auftretendes Bewegungsspiel zwischen Anbaugerät und Schnellwechsler ausgeglichen wird. Die Gegenkupplungsorgane können auch ohne Federkraftlagerung, fix oder flexibel gelagert sein. Die Hydraulikverbindung ist somit sicher geschlossen. Durch die innenliegende Bauweise der Hydraulikkupplungsorgane ist eine äußere Beschädigungsgefahr minimiert und ein zentriertes Zusammenfahren gewährleistet. In der Regel reichen bei einem Lader ein Zufluß 17 und ein Abfluß 16 für eine hydraulische Arbeitsfunktion des Anbaugerätes. Es können jedoch auch Verriegelungsteile (Fig.6, Fig.7) mit Mehrfachkupplungen verwendet werden, um mehrere hydraulische Arbeitsfunktionen zu ermöglichen. Es können auch mehrere Verriegelungsteile mit Einfachkupplungen verwendet werden.The quick coupler 1 shown for loading machines is through cylinder 4 hydraulically lockable, but it can also be mechanically or be operated electromagnetically. As soon as an implement, e.g. a High tip bucket to be picked up with the quick coupler 1 one grabs the hook 15 of the upper quick coupler holder 3 Bucket holder 2. The parts brought to the system are then locked by the hydraulic cylinder 4 by the First move the locking bolt 5 into the locking openings 13. Positioned and centered in this way, the inner (female) Hydr. - coupling members 24 of the locking bolts moving 5 on the matching counter-coupling elements 25 (male) Coupling unit 18 of the attachment. The way of the locking bolts 5 is limited by the stop 39. The counter-coupling member 25 is with Spring force 26 constantly pressed against the locking bolt 5, so that too an occurring movement between attachment and quick coupler is balanced. The counter-coupling elements can also without Spring-loaded, fixed or flexible storage. The hydraulic connection is therefore securely closed. Due to the internal construction of the Hydraulic coupling elements minimize the risk of external damage and ensures a centered moving together. As a rule, an inlet 17 and an outlet 16 are sufficient for a loader a hydraulic work function of the attachment. However, it can also Locking parts (Fig.6, Fig.7) used with multiple couplings to enable multiple hydraulic work functions. It can also use multiple locking parts with single couplings become.

    Die Erfindung ist für Baggerschnellwechsler in den Fig.4 und Fig.5 selbsterklärend dargestellt.The invention is for excavator quick couplers in FIGS. 4 and 5 presented in a self-explanatory manner.

    Claims (6)

    Schnellwechselvorrichtung (1,31) für Arbeitsmaschinen z.B. Lader und Bagger, zum Verriegeln eines Anbaugerätes z.B. einer Hochkippschaufel und zum gleichzeitigem Verbinden von Hydraulikleitungen (7,8 und 16,17), dadurch gekennzeichnet, daß sich die Hydraulikkupplungsorgane (21,24) in den beweglichen Verriegelungsteilen (5,36,37) befinden.Quick-change device (1.31) for working machines, e.g. loaders and excavators, for locking an attachment, e.g. a high-tip bucket, and for connecting hydraulic lines (7, 8 and 16, 17) at the same time, characterized in that the hydraulic coupling members (21, 24) are located in the movable locking parts (5,36,37). Schnellwechselvorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Verriegelungsteile (5,36,37) hydraulisch (4) betätigt werden.Quick-change device according to claim 1, characterized in that the locking parts (5, 36, 37) are actuated hydraulically (4). Schnellwechselvorrichtung an Anbaugeräten, dadurch gekennzeichnet, daß sich die aufnehmenden Hydraulikkupplungseinheiten (18) fluchtend hinter den Verriegelungsöffnungen (13) befinden.Quick-change device on attachments, characterized in that the receiving hydraulic coupling units (18) are aligned behind the locking openings (13). Schnellwechselvorrichtung an Anbaugeräten nach Anspruch 3, dadurch gekennzeichnet, daß die Hydraulikkupplungen (25) in der fluchtenden Verriegelungseinheit (18) flexibel (35) gehalten werden.Quick-change device on attachments according to claim 3, characterized in that the hydraulic couplings (25) are held flexibly (35) in the aligned locking unit (18). Schnellwechselvorrichtung an Anbaugeräten nach Anspruch 3, dadurch gekennzeichnet, daß die Hydraulikkupplungen (25) in den fluchtenden Verriegelungseinheiten (18) mit Federkraft (26) einen Federweg (A) erhalten, die ein mögliches Spiel zwischen Anbaugerät und Schnellwechsler legalisiert, bzw. eine ungenaue Verriegelungsendposition (39) des Verriegelungteiles (5,36,37) ausgleicht.Quick-change device on attachments according to claim 3, characterized in that the hydraulic couplings (25) in the aligned locking units (18) with spring force (26) receive a spring travel (A) which legalises a possible play between the attachment and quick-changer, or an inaccurate locking end position (39) of the locking part (5,36,37) compensates. Schnellwechselvorrichtung an Anbaugeräten nach Anspruch 3, dadurch gekennzeichnet, daß sich die fluchtenden Verriegelungseinheiten (18) in offener oder halboffener Bauweise befinden.Quick-change device on attachments according to claim 3, characterized in that the aligned locking units (18) are of open or semi-open construction.
    EP03400001A 2002-01-08 2003-01-02 Quick coupling device for work machines Withdrawn EP1329559A3 (en)

    Applications Claiming Priority (2)

    Application Number Priority Date Filing Date Title
    DE2002100836 DE10200836A1 (en) 2002-01-08 2002-01-08 Rapid tool changing mechanism for excavator, bulldozer or mechanical loader includes quick release couplings for hydraulic lines at sides of mounting frame
    DE10200836 2002-01-08

    Publications (2)

    Publication Number Publication Date
    EP1329559A2 true EP1329559A2 (en) 2003-07-23
    EP1329559A3 EP1329559A3 (en) 2003-10-29

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    EP03400001A Withdrawn EP1329559A3 (en) 2002-01-08 2003-01-02 Quick coupling device for work machines

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    Cited By (15)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    EP1473415A1 (en) * 2003-04-30 2004-11-03 Ateliers de Construction du Beaujolais Secure hydraulic locking device for quick coupling apparatus and for hydraulic connexions associated therewith, for a coupler.
    EP1566490A1 (en) * 2004-02-23 2005-08-24 WIMMER, Alois Arrangement for connecting energy conduits, particularly pressure conduits
    DE102004014824A1 (en) * 2004-03-24 2005-10-06 Lehnhoff Hartstahl Gmbh & Co Quick coupling device for the media on a construction equipment
    EP1840276A2 (en) * 2006-03-27 2007-10-03 Baumaschinentechnik Gesellschaft m.b.H. Quick coupler for construction machine
    WO2010062166A1 (en) * 2008-11-27 2010-06-03 Caterpillar Work Tools B.V. Work tool coupling arrangement
    CN101892682A (en) * 2010-07-28 2010-11-24 江苏柳工机械有限公司 Quick-change device for loader accessory
    DE202010003410U1 (en) 2010-03-10 2011-08-02 Jürgen Nagler Device for tool change in hydraulic excavators
    DE102010045842A1 (en) 2010-09-09 2012-03-15 Thomas Sauer Quick change device for use in hydraulic excavator to receive e.g. crane bucket, has rotating device completely or partially integrated within natural quick-change unit frame, where frame and rotating device housing form unit
    DE202011110652U1 (en) 2011-10-05 2015-06-03 Caterpillar Work Tools B. V. demolition device
    AT505238B1 (en) * 2007-06-13 2016-03-15 Martin Holding Gmbh CLUTCH
    CN109577405A (en) * 2018-12-11 2019-04-05 徐州徐工特种工程机械有限公司 A kind of hydraulic quick-changing mechanism of accessory
    EP3789540A1 (en) * 2019-09-05 2021-03-10 Karl Mauch Machine
    EP3862490A2 (en) 2020-02-10 2021-08-11 Kramer-Werke GmbH Mobile working machine with a tool holding device for holding a working tool
    DE102021200268A1 (en) 2021-01-13 2022-07-14 Kässbohrer Geländefahrzeug Aktiengesellschaft slope grooming vehicle
    DE102022121104A1 (en) 2022-08-22 2024-02-22 emtec Engineering & Maschinentechnik GmbH Coupling device and mobile work machine

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    WO1997030231A1 (en) 1996-02-19 1997-08-21 Soneruds Maskin Ab Coupling device for connecting an implement to a working machine
    US20010035217A1 (en) 1998-07-29 2001-11-01 Woods Equipment Company, Delaware Corporation Adjustably sealed multi-line fluid coupler

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    SE9600570D0 (en) * 1996-02-16 1996-02-16 Aaloe Maskiner Ab A combined valve housing and quick coupling
    US5829337A (en) * 1997-08-28 1998-11-03 Caterpillar Inc. Method and apparatus for coupling a fluid-powered implement to a work machine
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    Patent Citations (3)

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    Publication number Priority date Publication date Assignee Title
    DE69210405T2 (en) 1991-09-06 1996-12-05 John Teodor Sonerud QUICK COUPLING DEVICE FOR HYDRAULIC LINES
    WO1997030231A1 (en) 1996-02-19 1997-08-21 Soneruds Maskin Ab Coupling device for connecting an implement to a working machine
    US20010035217A1 (en) 1998-07-29 2001-11-01 Woods Equipment Company, Delaware Corporation Adjustably sealed multi-line fluid coupler

    Cited By (23)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    EP1473415A1 (en) * 2003-04-30 2004-11-03 Ateliers de Construction du Beaujolais Secure hydraulic locking device for quick coupling apparatus and for hydraulic connexions associated therewith, for a coupler.
    EP1566490A1 (en) * 2004-02-23 2005-08-24 WIMMER, Alois Arrangement for connecting energy conduits, particularly pressure conduits
    DE102004014824B4 (en) * 2004-03-24 2019-08-01 Lehnhoff Hartstahl Gmbh Quick-change device with a hydraulic coupling for the media on a construction equipment
    DE102004014824A1 (en) * 2004-03-24 2005-10-06 Lehnhoff Hartstahl Gmbh & Co Quick coupling device for the media on a construction equipment
    EP1840276A2 (en) * 2006-03-27 2007-10-03 Baumaschinentechnik Gesellschaft m.b.H. Quick coupler for construction machine
    EP1840276A3 (en) * 2006-03-27 2008-06-11 Baumaschinentechnik Gesellschaft m.b.H. Quick coupler for construction machine
    AT505238B1 (en) * 2007-06-13 2016-03-15 Martin Holding Gmbh CLUTCH
    WO2010062166A1 (en) * 2008-11-27 2010-06-03 Caterpillar Work Tools B.V. Work tool coupling arrangement
    DE202010003410U1 (en) 2010-03-10 2011-08-02 Jürgen Nagler Device for tool change in hydraulic excavators
    CN101892682A (en) * 2010-07-28 2010-11-24 江苏柳工机械有限公司 Quick-change device for loader accessory
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