EP0674053B1 - Quick-action coupling for excavator attachment - Google Patents
Quick-action coupling for excavator attachment Download PDFInfo
- Publication number
- EP0674053B1 EP0674053B1 EP95104275A EP95104275A EP0674053B1 EP 0674053 B1 EP0674053 B1 EP 0674053B1 EP 95104275 A EP95104275 A EP 95104275A EP 95104275 A EP95104275 A EP 95104275A EP 0674053 B1 EP0674053 B1 EP 0674053B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- holding
- mounting fixture
- tool
- jaw
- arm
- 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
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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
- E02F3/3622—Devices to connect tools to arms, booms or the like of the quick acting type, e.g. controlled from the operator seat with a hook and a locking element acting on a pin
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
- E02F3/36—Component parts
- E02F3/3604—Devices to connect tools to arms, booms or the like
- E02F3/3609—Devices to connect tools to arms, booms or the like of the quick acting type, e.g. controlled from the operator seat
- E02F3/364—Devices to connect tools to arms, booms or the like of the quick acting type, e.g. controlled from the operator seat using wedges
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
- E02F3/36—Component parts
- E02F3/3604—Devices to connect tools to arms, booms or the like
- E02F3/3609—Devices to connect tools to arms, booms or the like of the quick acting type, e.g. controlled from the operator seat
- E02F3/3663—Devices to connect tools to arms, booms or the like of the quick acting type, e.g. controlled from the operator seat hydraulically-operated
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
- E02F3/36—Component parts
- E02F3/3604—Devices to connect tools to arms, booms or the like
- E02F3/3609—Devices to connect tools to arms, booms or the like of the quick acting type, e.g. controlled from the operator seat
- E02F3/3668—Devices to connect tools to arms, booms or the like of the quick acting type, e.g. controlled from the operator seat where engagement is effected by a mechanical lever or handle
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
- E02F3/36—Component parts
- E02F3/3604—Devices to connect tools to arms, booms or the like
- E02F3/3609—Devices to connect tools to arms, booms or the like of the quick acting type, e.g. controlled from the operator seat
- E02F3/3672—Devices to connect tools to arms, booms or the like of the quick acting type, e.g. controlled from the operator seat where disengagement is effected by a mechanical lever or handle
Definitions
- the invention relates to a cantilever arm Soil cultivation tool, excavator or the like.
- Attachable Holding and fastening device for a tool, one Excavator bucket or the like, the tool two at a distance and parallel mounting tabs with two each has opposite through openings into which for connecting the tool to the extension arm Connecting bolts in the associated recesses of the Cantilever arm can be used, and the receiving and Fastening device also two in the distance and parallel mounting tabs with two each mutually opposite passage openings into the Connection of the mounting and fastening device with the Cantilever arm connecting bolts in the assigned recesses of the cantilever arm can be used, and two in cross section in Essential U-shaped jaws for those in the Mounting tabs of the tool inserted connecting bolts has, the mouths opening with each other opposite in the receiving and fastening device are arranged and a receiving mouth with one arm in the direction slidable and fixable in the other mouth Guides of the receiving and fastening device arranged is.
- This tool change is time-consuming and always involves two Operator ahead, namely the operator, the boom arm in the appropriate position to the tool, and a second operator who uses the connecting bolts.
- AU-B-633 242 is a generic device known, in which a front jaw and a rear Recording slot are provided, the opening down is directed while the mouth open to the front is. Furthermore, this device is slidable Sled with a locking hook available, the Opening is directed towards the rear. To connect one The front connecting bolt is now in the tool attached to the front opening mouth, then the rear connecting pin in the open Inserted slot and there with the locking hook of the sled locked.
- the object of the invention is a propose generic device that a play-free Guaranteed fit of the tool to be picked up.
- the clamping screw acts as a real clamping element, since this the connecting bolt to be tensioned between the lower one Leg of the U-shaped mounting mouth and the side wall wedged itself as the top clamping surface, with the amazing Result that such a reversal of the power flow in the mobile Mouth in the side wall can no longer take place and thus game is excluded.
- the Back pressure plate firmly in the receiving and Fastening device arranged.
- the counter pressure plate designed as a pivoting locking plate in the release position.
- the slidable mouth with the Piston rod of a hydraulically operated cylinder connected.
- the movable jaw is advantageous connected in such a way with a prestressed spring that the Jaw by the force of the preloaded spring in Release position is moved.
- FIGS. 2 and 3 show, one according to the invention Recording and fastening device 2 at a distance parallel mutually standing receiving tabs 1 and 2 have opposite through openings 3.
- Through openings 3 are in a known manner Connecting bolts can be used, the assigned recesses reach through an excavator arm, not shown, so that the mounting and fastening device with the excavator arm connected is.
- the recording and Fastening device with a front receiving mouth 4 essentially U-shaped cross section and a rear Receiving mouth 5 with a substantially U-shaped Cross section, the openings of the two receiving mouths 4 and 5 are directed in opposite directions.
- the rear Receiving mouth 5 an arm 6, which in a guide 7 Recording and fastening device slidably held is.
- FIG. 4 further shows, there is a recess 8 in the arm 6 arranged with an internal thread in which a clamping screw 9 is held screwable.
- the clamping screw 9 is rotatable held in a locking plate 10, which in turn is pivotable is, like this the double arrow designated 11 in FIG. 5 displays.
- FIGS. 1 and 2 show, that is sliding rear mouth 5 with the piston rod 12 one hydraulically actuated pressure cylinder 13 connected.
- the movable mouth 5 is so with a biased Spring 14 connected that it is biased by the force of Spring is moved to the release position.
- a Excavator bucket 15 also two at a distance and parallel mutually extending receiving tabs 16, each with two opposite openings in the Connection bolts 17 are used in a known manner.
- the clamping screw 9 When using the recording and Fastening device, the clamping screw 9 is loosened and the locking plate 10 pivoted to the left in which it can slide between the guides 7, as shown in Fig. 5th is shown.
- the biased spring 14 that slidable receiving mouth 5 in the direction of the front Recording mouth 4 moved to the release position. Subsequently the cradle with the front jaw 4 in the front connecting bolt 17 of the excavator bucket 15 hooked, as shown in Fig. 1.
- the locking plate 10 is after right by 90 ° in the position shown in Figs. 4 and 5 pivoted, in which it rests on the guides 7.
- the clamping screw 9 By Tightening the clamping screw 9 is a secure connection guaranteed.
- the receiving and Fastening device also with tools different distance between the connecting bolts 17th applicable.
- the receiving mouths 4, 5 are themselves widened towards its opening in a wedge shape. This means that a safe, backlash-free fit is guaranteed because the locating bolts jam in the receiving mouths.
- FIG. 2 further shows that the receiving mouth 5 at an angle of approx. 15 ° to the connecting line of the Muzzle 4 and 5 inclined downwards the receiving and fastening device is arranged.
- the Hydraulic cylinder further up in the intake and Fastening device may be arranged so that between a free space is created for the reception mouths. This makes possible the inclusion of tools between the Studs hump or the like. have, as shown in FIG. 2 shows.
- the aim of this invention is to address this recognized disadvantage eliminate and develop a quick change device which is a quick change for marketable unchanged Tools.
- the usual tools on the market are in the Usually two hinge pins between two side plates as Articulation points for a quick-change device for Available. Usually extends between the Hinge pin is a stiffening plate with its highest Survey on the direct connecting line of the Hinge pin centers protrudes.
- the Hinge pin diameters and positions can be found in the the usual tools available on the market Areas fluctuate, and are also subject to the same Types not inconsiderable fluctuations.
- these boundary conditions are elegant Execution and arrangement of the components of the Quick-change device is taken into account and lead to a solution that is amazing for a very large Number of common tools can be used.
- the mouth can be wedge-shaped, different Bolt diameters are gripped, the bolts not strike the back of the mouth by one To achieve adjustment effect in the event of pin wear.
- the special embodiment of the mouth causes that in Operation of soil cultivation tools when inserting the quick-change device on the Bolts can dodge into the corners of the mouth and one Mismatch is prevented by the effect of dirt.
- the movable mouth that acts on the second hinge pin is designed according to the invention so that the actuating means, Hydraulic cylinder with return spring and tension screw in are inclined so that the usual Reinforcement plates on the tools between the Pivot pins are not an obstacle when coupling.
- the thread of the clamping screw is through a shaft seal protected against external influences.
- the movable mouth is wedge-shaped designs and clamps the hinge pin between the wedge and Housing.
- the orientation of the actuating means was changed According to the invention chosen so that the actuating force direction acts towards the center of the bolt and still the guide arm together with the wedge from a single part consists.
- Control element e.g. hydraulic cylinder
- clamping screw leads to the following advantages: If the remote control fails Control element, the tool remains securely locked.
- the quick-change device remains functional, i.e. According to the invention, tools can this arrangement continues to be solved by the device and can also be coupled again.
- the bias spring cleverly arranged so that on the one hand the Tension screw does not buckle when opening the lock is claimed, and that on the other hand, the locking of the Tool supported by the remote control is not from the spring, because when locking due to imprecise Positioning it is necessary to use the pre-positioned tool to pull into position.
- a remote control with Clamping screw resulting difficulty that an operator Must adjust the clamping screw by long distances, synonymous with many turns on the turnbuckle before that remote-controlled actuating element (e.g. hydraulic cylinder) can use is achieved according to the invention in that a locking plate is pivotally arranged so that one the clamping screw in and out of engagement in no time can bring to e.g. hydraulically adjustable.
- actuating element e.g. hydraulic cylinder
- a disc spring between the tension screw head and the locking plate additionally serves according to the invention, the clamping screw keep under tension to loosen the screw prevent and additionally serves the externally visible Spring travel of the disc spring as a visual control for the Operator, who then correctly pre-tensioned the screw, when the full spring travel of the disc spring is being used has been.
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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)
- Earth Drilling (AREA)
- Shovels (AREA)
Abstract
Description
Die Erfindung betrifft eine am Auslegerarm eines Bodenbearbeitungswerkzeuges, Baggers od. dgl. befestigbare Aufnahme- und Befestigungsvorrichtung für ein Werkzeug, einen Baggerlöffel od. dgl., wobei das Werkzeug zwei im Abstand und parallel zueinander stehende Aufnahmelaschen mit jeweils zwei einander gegenüberliegenden Durchtrittsöffnungen hat, in die zur Verbindung des Werkzeuges mit dem Auslegerarm Verbindungsbolzen in zugeordneten Ausnehmungen des Auslegerarmes einsetzbar sind, und wobei die Aufnahme- und Befestigungsvorrichtung gleichfalls zwei im Abstand und parallel zueinander stehende Aufnahmelaschen mit jeweils zwei einander gegenüberliegenden Durchtrittsöffnungen, in die zur Verbindung der Aufnahme- und Befestigungsvorrichtung mit dem Auslegerarm Verbindungsbolzen in die zugeordneten Ausnehmungen des Auslegerarmes einsetzbar sind, und zwei im Querschnitt im Wesentlichen U-förmige Aufnahmemäuler für die in die Aufnahmelaschen des Werkzeuges eingesetzte Verbindungsbolzen hat, wobei die Aufnahmemäuler mit ihrer Öffnung einander entgegengesetzt in der Aufnahme- und Befestigungsvorrichtung angeordnet sind und ein Aufnahmemaul mit einem Arm in Richtung auf das andere Aufnahmemaul verschiebbar und festlegbar in Führungen der Aufnahme- und Befestigungsvorrichtung angeordnet ist. The invention relates to a cantilever arm Soil cultivation tool, excavator or the like. Attachable Holding and fastening device for a tool, one Excavator bucket or the like, the tool two at a distance and parallel mounting tabs with two each has opposite through openings into which for connecting the tool to the extension arm Connecting bolts in the associated recesses of the Cantilever arm can be used, and the receiving and Fastening device also two in the distance and parallel mounting tabs with two each mutually opposite passage openings into the Connection of the mounting and fastening device with the Cantilever arm connecting bolts in the assigned recesses of the cantilever arm can be used, and two in cross section in Essential U-shaped jaws for those in the Mounting tabs of the tool inserted connecting bolts has, the mouths opening with each other opposite in the receiving and fastening device are arranged and a receiving mouth with one arm in the direction slidable and fixable in the other mouth Guides of the receiving and fastening device arranged is.
Es gibt eine Vielzahl von Werkzeugen, die jeweils nach Baustellenbedingungen täglich mehrmals gewechselt werden müssen. Dazu sind am Werkzeug zwei im Abstand zueinander stehende Aufnahmelaschen mit jeweils zwei einander gegenüberliegenden Durchtrittsöffnungen vorgesehen. Zur Verbindung des Werkzeuges mit dem Auslegerarm werden dann durch die Durchtrittsöffnungen der Aufnahmelaschen des Werkzeuges und die zugeordneten Ausnehmungen des Auslegerarmes Verbindungsbolzen eingesetzt.There are a variety of tools, each according to Construction site conditions can be changed several times a day have to. For this purpose, two are at a distance from each other on the tool standing mounting tabs with two each other opposite passage openings provided. For The tool is then connected to the extension arm by the passage openings of the receiving tabs of the tool and the associated recesses of the cantilever arm Connection bolts inserted.
Dieser Werkzeugwechsel ist zeitraubend und setzt stets zwei Bediener voraus, nämlich einmal den Führer, der den Auslegerarm in die entsprechende Position zum Werkzeug bringt, und ein zweiter Bediener, der die Verbindungsbolzen einsetzt.This tool change is time-consuming and always involves two Operator ahead, namely the operator, the boom arm in the appropriate position to the tool, and a second operator who uses the connecting bolts.
Es sind weiterhin unterschiedliche Schnellwechselsysteme bekannt, die das Wechseln von Werkzeugen erleichtern, die jedoch nicht mit den herkömmlichen Werkzeugen verwendet werden können, sondern es sind jeweils auf das Schnellwechselsystem angepaßte Werkzeuge notwendig.There are still different quick change systems known to facilitate changing tools that however, cannot be used with conventional tools can, but they are each on the quick change system adapted tools necessary.
Aus der AU-B-633 242 ist eine gattungsgemäße Vorrichtung bekannt, bei der ein vorderes Aufnahmemaul und ein hinterer Aufnahmeschlitz vorgesehen sind, dessen Öffnung nach unten gerichtet ist, während das Aufnahmemaul nach vorne geöffnet ist. Weiterhin ist bei dieser Vorrichtung ein verschiebbarer Schlitten mit einem Verriegelungshaken vorhanden, dessen Öffnung nach hinten gerichtet ist. Zur Verbindung eines Werkzeuges wird nunmehr der vordere Verbindungsbolzen in das nach vorne geöffnete vordere Aufnahmemaul eingehängt, anschließend der hintere Verbindungsbolzen in den nach offenen Aufnahmeschlitz geschoben und dort mit dem Verriegelungshaken des Schlittens verriegelt. AU-B-633 242 is a generic device known, in which a front jaw and a rear Recording slot are provided, the opening down is directed while the mouth open to the front is. Furthermore, this device is slidable Sled with a locking hook available, the Opening is directed towards the rear. To connect one The front connecting bolt is now in the tool attached to the front opening mouth, then the rear connecting pin in the open Inserted slot and there with the locking hook of the sled locked.
Dies erfolgt dadurch, daß der Schlitten durch Drehung des Bolzens in die Verriegelungsstellung gebracht wird und mit einem Verriegelungsstift gesichert wird. Durch diese Verriegelungsvorrichtung kann kein spielfreier Sitz des Werkzeuges gewährleistet werden, da dazu die Verbindungsbolzen des aufzunehmenden Werkzeuges genau den Abstand zwischen dem vorderen Aufnahmemaul und dem hinteren Aufnahmeschlitz haben müßten. Auch der Verschleiß der Verbindungsbolzen und der Aufnahmemäuler kann bei dieser Verriegelungsvorrichtung nicht ausgeglichen werden, um einen spielfreien Sitz zu gewährleisten.This is done by rotating the carriage Bolt is brought into the locked position and with a locking pin is secured. Through this Locking device can not fit the game without play Tool can be guaranteed because of the connecting bolts of the tool to be picked up exactly the distance between the front mounting mouth and the rear mounting slot ought to. Also the wear of the connecting bolts and the Mouths of this locking device cannot be balanced to ensure a play-free fit guarantee.
Aus dem Dokument WO-A-93 05 251 ist weiterhin eine gattungsgemäße Vorrichtung bekannt, die zwei im Wesentlichen U-förmige ausgebildete Aufnahmemäuler hat, wobei ein Aufnahmemaul in den Seitenwänden der Vorrichtung festgelegt ist und das andere Aufnahmemaul so verschiebbar in den Seitenwänden angeordnet ist, daß das U-förmige Aufnahmemaul den aufzunehmenden Verbindungsbolzen in einem Formschluß oben, unten und entgegengesetzt zur Verriegelungsbewegung umschließt. Durch einen Druckzylinder können die beiden Verbindungsbolzen des Werkzeuges aufgenommen werden, dabei bleibt durch die ungünstige Umschließung der Verbindungsbolzen, oben, unten und entgegen der Verriegelungsbewegung ein Spiel zwischen beweglichem Aufnahmemaul und Seitenwand bestehen, da das bewegliche Aufnahmemaul in einer Linearführung geführt werden muß, die an den Seitenwänden befestigt ist. Das Spiel wird durch die ungünstige Anordnung des Maules deshalb ermöglich, weil je nach Beanspruchung des Werkzeuges eine Umkehr im Kraftfluß vom Verbindungsbolzen, über das Aufnahmemaul, über die Linearführung in die Seitenwände stattfindet. Zusätzlich ist bei der Ausführung der im Wesentlichen U-förmigen Mäuler als - an die Bolzenkontur angepasste Rundungen (WO-A-93 05 251) -, eine spielfreie Aufnahme des Werkzeuges nicht möglich, da eine Passung in dieser Form spielbehaftet sein muss. From document WO-A-93 05 251 there is also one Generic device known, the two essentially Has a U-shaped receiving mouth, one Receiving mouth is set in the side walls of the device and the other mouth so slidable in the side walls is arranged that the U-shaped receiving mouth connecting bolts to be received in a positive connection at the top, encloses below and opposite to the locking movement. The two connecting bolts can be connected by a pressure cylinder of the tool can be included, while the unfavorable enclosure of the connecting bolts, top, bottom and against the locking movement a game between moveable mounting mouth and side wall exist because the movable jaws are guided in a linear guide must, which is attached to the side walls. The game will due to the unfavorable arrangement of the mouth, because depending on the load on the tool, a reversal in the Power flow from the connecting bolt, over the receiving mouth, over the linear guidance takes place in the side walls. In addition is in the execution of the essentially U-shaped mouth as - curves adapted to the bolt contour (WO-A-93 05 251) -, a play-free holder for the tool not possible, because a fit in this form involves play have to be.
Demgegenüber besteht die Aufgabe der Erfindung darin, eine gattungsgemäße Vorrichtung vorzuschlagen, die einen spielfreien Sitz des aufzunehmenden Werkzeuges gewährleistet.In contrast, the object of the invention is a propose generic device that a play-free Guaranteed fit of the tool to be picked up.
Diese Aufgabe wird dadurch gelöst, daß in einer Ausnehmung mit Innengewinde des Armes des verschiebbaren Aufnahmemauls eine Spannschraube schraubbar eingesetzt ist, die drehbar in einer Gegendruckplatte der Aufnahme- und Befestigungsvorrichtung gehalten ist.This object is achieved in that in a recess Internal thread of the arm of the slidable receiving jaw one Clamping screw is used, which is rotatable in one Counter pressure plate of the mounting and fastening device is held.
Somit wirkt die Spannschraube als echtes Spannelement, da diese den zu spannenden Verbindungsbolzen zwischen dem unteren Schenkel des U-förmigen Aufnahmemaules und der Seitenwand selbst als obere Spannfläche einkeilt, mit dem erstaunlichen Ergebnis, daß so eine Umkehr des Kraftflusses im beweglichen Aufnahmemaul in die Seitenwand nicht mehr stattfinden kann und somit Spiel ausgeschlossen ist.Thus, the clamping screw acts as a real clamping element, since this the connecting bolt to be tensioned between the lower one Leg of the U-shaped mounting mouth and the side wall wedged itself as the top clamping surface, with the amazing Result that such a reversal of the power flow in the mobile Mouth in the side wall can no longer take place and thus game is excluded.
Bei einer vorteilhaften Ausführungsform ist die Gegendruckplatte fest in der Aufnahme- und Befestigungsvorrichtung angeordnet.In an advantageous embodiment, the Back pressure plate firmly in the receiving and Fastening device arranged.
Bei einer bevorzugten Ausführungsform ist die Gegendruckplatte als in Freigabestellung schwenkbare Riegelplatte ausgebildet.In a preferred embodiment, the counter pressure plate designed as a pivoting locking plate in the release position.
Vorzugsweise ist das verschiebbare Aufnahmemaul mit der Kolbenstange eines hydraulisch betätigbaren Zylinders verbunden. Vorteilhaft ist das verschiebbare Aufnahmemaul derart mit einer vorgespannten Feder verbunden, daß das Aufnahmemaul durch die Kraft der vorgespannten Feder in Freigabestellung bewegt ist. Preferably, the slidable mouth with the Piston rod of a hydraulically operated cylinder connected. The movable jaw is advantageous connected in such a way with a prestressed spring that the Jaw by the force of the preloaded spring in Release position is moved.
Die Erfindung ist in den Zeichnungen beispielhaft dargestellt. Es zeigen:
- Fig. 1
- die Aufnahme- und Befestigungsvorrichtung in teilweiser Verbindung mit einem Baggerlöffel, in Seitenansicht
- Fig. 2
- die Aufnahme- und Befestigungsvorrichtung in Verbindung mit einem Baggerlöffel, in Seitenansicht
- Fig. 3
- die Vorrichichtung nach Fig. 2 in Rückansicht,
- Fig. 4
- ein Detail der Aufnahme- und Befestigungsvorrichtung in Seitenansicht und
- Fig. 5
- ein Detail der Aufnahme- und Befestigungsvorrichtung in Rückansicht.
- Fig. 1
- the mounting and fastening device in partial connection with an excavator bucket, in side view
- Fig. 2
- the mounting and fastening device in connection with an excavator bucket, in side view
- Fig. 3
- 2 in rear view,
- Fig. 4
- a detail of the receiving and fastening device in side view and
- Fig. 5
- a detail of the receiving and fastening device in rear view.
Wie die Figuren 2 und 3 zeigen, hat eine erfindungsgemäße
Aufnahme- und Befestigungsvorrichtung 2 im Abstand parallel
zueinander stehende Aufnahmelaschen 1 und 2, die einander
gegenüberliegende Durchtrittsöffnungen 3 haben. In diese
Durchtrittsöffnungen 3 sind in bekannter Weise
Verbindungsbolzen einsetzbar, die zugeordnete Ausnehmungen
eines nicht dargestellten Baggerarmes durchgreifen, so daß
die Aufnahme- und Befestigungsvorrichtung mit dem Baggerarm
verbunden ist. As FIGS. 2 and 3 show, one according to the invention
Recording and
Wie die Figuren weiter zeigen, hat die Aufnahme- und
Befestigungsvorrichtung ein vorderes Aufnahmemaul 4 mit
im wesentlichen U-förmigem Querschnitt und ein hinteres
Aufnahmemaul 5 mit gleichfalls im wesentlichen U-förmigem
Querschnitt, wobei die Öffnungen der beiden Aufnahmemäuler 4
und 5 einander entgegengesetzt gerichtet sind.As the figures further show, the recording and
Fastening device with a front receiving
Wie insbesondere die Fig. 4 zeigt, hat das hintere
Aufnahmemaul 5 einen Arm 6, der in einer Führung 7 der
Aufnahme- und Befestigungsvorrichtung verschiebbar gehalten
ist.As particularly shown in FIG. 4, the rear
Receiving
Wie die Fig. 4 weiter zeigt, ist im Arm 6 eine Ausnehmung 8
mit Innengewinde angeordnet, in der eine Spannschraube 9
schraubbar gehalten ist. Die Spannschraube 9 ist drehbar
in einer Riegelplatte 10 gehalten, die ihrerseits schwenkbar
ist, wie dies der in Fig. 5 mit 11 bezeichnete Doppelpfeil
anzeigt.As FIG. 4 further shows, there is a
Wie insbesondere die Fig. 1 und 2 zeigen, ist das
verschiebbare hintere Maul 5 mit der Kolbenstange 12 eines
hydraulisch betätigbaren Druckzylinders 13 verbunden.As in particular FIGS. 1 and 2 show, that is
sliding
Das verschiebbare Maul 5 ist derart mit einer vorgespannten
Feder 14 verbunden, daß es durch die Kraft der vorgespannten
Feder in Freigabestellung bewegt ist.The
Wie insbesondere die Fig. 1 - 3 zeigen, hat ein
Baggerlöffel 15 gleichfalls zwei im Abstand und parallel
zueinander verlaufende Aufnahmelaschen 16 mit jeweils zwei
einander gegenüberliegenden Durchtrittsöffnungen, in die
in bekannter Weise Verbindungsbolzen 17 eingesetzt sind. As particularly shown in FIGS. 1-3, a
Bei Verwendung der erfindungsgemäßen Aufnahme- und
Befestigungsvorrichtung wird die Spannschraube 9 gelöst
und die Riegelplatte 10 nach links geschwenkt, in der sie
zwischen den Führungen 7 gleiten kann, wie dies in Fig. 5
dargestellt ist. Durch die vorgespannte Feder 14 wird das
verschiebbare Aufnahmemaul 5 in Richtung auf das vordere
Aufnahmemaul 4 in Freigabestellung bewegt. Anschließend
wird die Aufnahmevorrichtung mit dem vorderen Aufnahmemaul 4
in den vorderen Verbindungsbolzens 17 des Baggerlöffels 15
eingehängt, wie dies in Fig. 1 dargestellt ist.When using the recording and
Fastening device, the
Nunmehr wird durch die entsprechende Betätigung des nicht
dargestellten Auslegerarms durch den Bediener die Aufnahme- und
Befestigungsvorrichtung nach unten auf den
Baggerlöffel 15 geschwenkt und der Druckzylinder 13 betätigt,
so daß das hintere Aufnahmemaul 5 in Schließstellung bewegt
wird, in der es in den hinteren Verbindungsbolzen 17 des
Baggerlöffels 15 eingreift, wie dies die Fig. 2 zeigt.Now by pressing the appropriate button the
Cantilever arm shown by the operator and the
Fastening device down on the
Zur Sicherung der Verbindung wird die Riegelplatte 10 nach
rechts um 90° in die in Fig. 4 und 5 gezeigte Stellung
geschwenkt, in der sie auf den Führungen 7 aufliegt. Durch
Anziehen der Spannschraube 9 wird so eine sichere Verbindung
gewährleistet.To secure the connection, the
Findet die Aufnahme- und Befestigungsvorrichtung aus
Kostengründen Verwendung ohne hydraulisch betätigbaren
Druckzylinder, so ist die Riegelplatte 10 in der in
Fig. 4 und 5 dargestellten Stellung fest mit den Führungen 7
verbunden, so daß eine Betätigung des verschiebbaren
Aufnahmemaules 5 lediglich mit Hilfe der Spannschraube 9
erfolgen kann. Find out the mounting and fastening device
Cost reasons use without hydraulically operated
Printing cylinder, the
Durch das verschiebbare Aufnahmemaul 5 ist die Aufnahme- und
Befestigungsvorrichtung auch bei Werkzeugen mit
unterschiedlichem Abstand der Verbindungsbolzen 17
einsetzbar.Due to the displaceable receiving
Wie die Figuren zeigen, sind die Aufnahmemäuler 4, 5 sich
zu ihrer Öffnung hin keilförmig verbreiternd ausgebildet.
Dadurch wird bei Aufnahme eines Werkzeuges ein sicherer,
spielfreier Sitz gewährleistet, da sich die Aufnahmebolzen
in den Aufnahmemäulern verklemmen.As the figures show, the
Insbesondere die Fig. 2 zeigt weiter, daß das Aufnahmemaul 5
in einem Winkel von ca. 15° zur Verbindungslinie der
Aufnahmemäuler 4 und 5 nach unten geneigt verschiebbar in
der Aufnahme- und Befestigungsvorrichtung angeordnet ist.
Durch diese winkelförmige Anordnung kann der
Hydraulikzylinder weiter oberhalb in der Aufnahme- und
Befestigungsvorrichtung angeordnet sein, so daß zwischen
den Aufnahmemäulern ein Freiraum entsteht. Dies ermöglicht
die Aufnahme auch von Werkzeugen, die zwischen den
Aufnahmebolzen Höcker od.dgl. aufweisen, wie dies die Fig. 2
zeigt.In particular, FIG. 2 further shows that the receiving
Für Bodenarbeitsgeräte wie Bagger od.dgl. sind am Markt einige Schnellwechselvorrichtungen zu erhalten, die das Austauschen eines Bodenbearbeitungswerkzeuges vereinfachen und erleichtern sollen. Allen bekannten Lösungen ist gemeinsam, daß dazu die marktgängigen Werkzeuge, die von vielen verschiedenen Herstellern zu beziehen sind, speziell für die jeweilige Schnellwechselvorrichtung umgebaut werden müssen oder aber die jeweilige Schnellwechselvorrichtung nur für Werkzeuge einsetzbar sind, die speziell für diese Vorrichtungen gebaut wurden.For soil working equipment such as excavators or the like. are on the market to get some quick-change devices which is replacing a tillage tool simplify and facilitate. All known solutions has in common that the marketable tools that are available from many different manufacturers, specially modified for the respective quick-change device must be or the respective Quick-change device can only be used for tools, built specifically for these devices.
Ziel dieser Erfindung ist es diesen erkannten Nachteil zu beseitigen, und eine Schnellwechselvorrichtung zu entwickeln, die eine Schnellwechslung für marktgängige unveränderte Werkzeuge ermöglicht.The aim of this invention is to address this recognized disadvantage eliminate and develop a quick change device which is a quick change for marketable unchanged Tools.
An den üblichen marktgängigen Werkzeugen, stehen in der Regel zwei Gelenkbolzen zwischen zwei Seitenplatten als Anlenkpunkte für eine Schnellwechselvorrichtung zur Verfügung. In der Regel erstreckt sich zwischen den Gelenkbolzen ein Versteifungsblech, das mit seiner höchsten Erhebung über die direkte Verbindungslinie der Gelenkbolzenmittelpunkte hinausragt. Die Gelenkbolzen-Durchmesser und Positionen können bei den üblichen auf dem Markt erhältlichen Werkzeugen in weiten Bereichen schwanken, und unterliegen auch bei gleichen Baumustern nicht unerheblichen Schwankungen.The usual tools on the market are in the Usually two hinge pins between two side plates as Articulation points for a quick-change device for Available. Usually extends between the Hinge pin is a stiffening plate with its highest Survey on the direct connecting line of the Hinge pin centers protrudes. The Hinge pin diameters and positions can be found in the the usual tools available on the market Areas fluctuate, and are also subject to the same Types not inconsiderable fluctuations.
Erfindungsgemäß werden diese Randbedingungen durch geschickte Ausführung und Anordnung der Bauteile der Schnellwechselvorrichtung berücksichtigt, und führen zu einer Lösung, die erstaunlicher Weise für eine sehr große Zahl von marktgängigen Werkzeugen einsetzbar ist. Durch die Ausbildung des Mauls können keilförmige, verschiedene Bolzen-Durchmesser gegriffen werden, wobei die Bolzen nicht an die Rückwand des Maules anschlagen um einen Nachstelleffekt bei Bolzenabnutzung zu erreichen. Die besondere Ausführungsform des Maules bewirkt, daß der im Betrieb von Bodenbearbeitungswerkzeugen anfallende Schmutz beim Einschieben der Schnellwechselvorrichtung auf den Bolzen in die Ecken des Maules ausweichen kann und eine Fehlkupplung durch Schmutzeinwirkung verhindert wird. According to the invention, these boundary conditions are adept Execution and arrangement of the components of the Quick-change device is taken into account and lead to a solution that is amazing for a very large Number of common tools can be used. By the formation of the mouth can be wedge-shaped, different Bolt diameters are gripped, the bolts not strike the back of the mouth by one To achieve adjustment effect in the event of pin wear. The special embodiment of the mouth causes that in Operation of soil cultivation tools when inserting the quick-change device on the Bolts can dodge into the corners of the mouth and one Mismatch is prevented by the effect of dirt.
Das bewegliche Maul, das auf den zweiten Gelenkbolzen wirkt, ist erfindungsgemäß so ausgeführt, daß die Betätigungsmittel, Hydraulikzylinder mit Rückstellfeder und Spannschraube in einem Winkel von ca. 15° so geneigt sind, daß die üblichen Verstärkungsbleche auf den Werkzeugen zwischen den Gelenkbolzen beim Kuppeln kein Hinderniss darstellen.The movable mouth that acts on the second hinge pin is designed according to the invention so that the actuating means, Hydraulic cylinder with return spring and tension screw in are inclined so that the usual Reinforcement plates on the tools between the Pivot pins are not an obstacle when coupling.
Das Gewinde der Spannschraube ist durch einen Wellendichtring gegen äußere Einflüsse geschützt. Um einen günstigen Kraftfluß zu erreichen, ist das bewegliche Maul keilförmig gestaltet und klemmt den Gelenkbolzen zwischen Keil und Gehäuse ein. Die Ausrichtung der Betätigungsmittel wurde erfindungsgemäß so gewählt, daß die Betätigungskraft-Richtung in Richtung auf den Bolzenmittelpunkt wirkt und trotzdem der Führungsarm zusammen mit dem Keil aus einem Einzelteil besteht.The thread of the clamping screw is through a shaft seal protected against external influences. To a cheap one To reach the flow of force, the movable mouth is wedge-shaped designs and clamps the hinge pin between the wedge and Housing. The orientation of the actuating means was changed According to the invention chosen so that the actuating force direction acts towards the center of the bolt and still the guide arm together with the wedge from a single part consists.
Die erfindungsgemäße Kombination von fernbedienbarem Stellelement (z.B. Hydraulikzylinder) und Spannschraube führt zu folgenden Vorteilen: Bei Ausfall des fernbedienten Stellelementes bleibt das Werkzeug sicher verriegelt. Zusätzlich bleibt die Schnellwechselvorrichtung weiterhin funktionsfähig, d.h. erfindungsgemäß können Werkzeuge bei dieser Anordnung weiterhin von der Vorrichtung gelöst und auch wieder angekuppelt werden. Dabei ist die Vorspannfeder geschickterweise so angeordnet, daß zum einen die Spannschraube beim öffnen der Verriegelung nicht auf Knicken beansprucht wird, und daß zum anderen, das Verriegeln des Werkzeuges von dem fernbedienbaren Stellelement unterstützt wird, nicht von der Feder, da beim Verriegeln durch ungenaues Positionieren es notwendig ist, das vorpositionierte Werkzeug in Position zu ziehen. Die sich bei der beschriebenen Kombination von fernbedienbarem Stellelement mit Spannschraube ergebene Schwierigkeit, daß ein Bediener die Spannschraube um große Wege verstellen muß, gleichbedeutend mit vielen Umdrehungen an der Spannschraube, bevor das fernbedienbare Stellemement (z.B. Hydraulkizylinder) einsetzen kann, ist erfindungsgemäß dadurch gelöst, daß eine Riegelplatte schwenkbar so angeordnet ist, daß man die Spannschraube im Handumdrehen in- und außer Eingriff bringen kann, um dann z.B. hydraulisch zu verstellen.The combination of remote control according to the invention Control element (e.g. hydraulic cylinder) and clamping screw leads to the following advantages: If the remote control fails Control element, the tool remains securely locked. In addition, the quick-change device remains functional, i.e. According to the invention, tools can this arrangement continues to be solved by the device and can also be coupled again. Here is the bias spring cleverly arranged so that on the one hand the Tension screw does not buckle when opening the lock is claimed, and that on the other hand, the locking of the Tool supported by the remote control is not from the spring, because when locking due to imprecise Positioning it is necessary to use the pre-positioned tool to pull into position. Which is described in the Combination of a remote control with Clamping screw resulting difficulty that an operator Must adjust the clamping screw by long distances, synonymous with many turns on the turnbuckle before that remote-controlled actuating element (e.g. hydraulic cylinder) can use is achieved according to the invention in that a locking plate is pivotally arranged so that one the clamping screw in and out of engagement in no time can bring to e.g. hydraulically adjustable.
Eine Tellerfeder zwischen Spannschraubenkopf und Riegelplatte dient zusätzlich erfindungsgemäß dazu, die Spannschraube unter Vorspannung zu halten, um ein Lösen der Schraube zu verhindern und zusätzlich dient der von außen sichtbare Federweg der Tellerfeder als optische Kontrolle für den Bediener, der die Schraube dann richtig vorgespannt hat, wenn gerade der volle Federweg der Tellerfeder ausgenutzt wurde.A disc spring between the tension screw head and the locking plate additionally serves according to the invention, the clamping screw keep under tension to loosen the screw prevent and additionally serves the externally visible Spring travel of the disc spring as a visual control for the Operator, who then correctly pre-tensioned the screw, when the full spring travel of the disc spring is being used has been.
Claims (8)
- Holding and mounting fixture for a tool, excavating shovel or the like, adapted to be mounted on the boom arm of an earthworking tool, excavator or the like, the tool having two holding brackets spaced apart from and parallel to one another, with two respective mutually opposed through-holes into which connecting pins can be inserted in associated recesses in the boom arm to join the tool to the boom arm, and the holding and mounting fixture likewise having holding brackets (1, 2) spaced apart from and parallel to one another, with two respective mutually opposed through-holes (3) into which connecting pins can be inserted in the associated recesses in the boom arm to join the holding and mounting fixture to the boom arm, and having two holding jaws (4, 5) of substantially U-shaped cross-section for the connecting pins (17) inserted into the holding brackets (16) of the tool (15), the holding jaws being arranged with their openings opposite one another in the holding and mounting fixture and one holding jaw (5) being arranged in guides (7) of the holding and mounting fixture with one arm displaceable and lockable in the direction of the other holding jaw (4), characterised in that screwed into an internally threaded recess (8) in the arm (6) of the displaceable holding jaw (5) is a lockscrew (9) which is held so as to be able to rotate in a counterpressure plate (10) of the holding and mounting fixture.
- Holding and mounting fixture according to claim 1, characterised in that the counterpressure plate (10) is permanently disposed in the holding and mounting fixture.
- Holding and mounting fixture according to either of claims 1 and 2, characterised in that the counterpressure plate (10) is in the form of a bolt plate adapted to be swivelled into the release position.
- Holding and mounting fixture according to any of claims 1 to 3, characterised in that the displaceable holding jaw (5) is joined to the piston rod (12) of a hydraulically operated pressure cylinder (13) arranged in the holding and mounting fixture.
- Holding and mounting fixture according to claim 4, characterised in that the displaceable holding jaw (5) is joined to a pretensioned spring (14) in such a way that the force of the pretensioned spring moves the holding jaw into the release position.
- Holding and mounting fixture according to any of claims 1 to 5, characterised in that the holding jaws (4, 5) are so constructed as to broaden out cuneiformly towards their opening.
- Holding and mounting fixture according to any of claims 1 to 5, characterised in that the holding jaw (5) is arranged in the holding and mounting fixture in a manner enabling it to be displaced downwardly at an angle to the line connecting the holding jaws (4, 5).
- Holding and mounting fixture according to claim 7, characterised in that the angle between the line connecting the holding jaws (4, 5) and the direction of displacement of the holding jaw (5) is approx. 15°.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SI9530378T SI0674053T1 (en) | 1994-03-24 | 1995-03-23 | Quick-action coupling for excavator attachment |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE4410194A DE4410194A1 (en) | 1994-03-24 | 1994-03-24 | Attachable mounting and fastening device for a tool, an excavator bucket or the like can be attached to the extension arm of a tillage tool, excavator or the like. |
| DE4410194 | 1994-03-24 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP0674053A2 EP0674053A2 (en) | 1995-09-27 |
| EP0674053A3 EP0674053A3 (en) | 1996-04-24 |
| EP0674053B1 true EP0674053B1 (en) | 1999-12-01 |
Family
ID=6513725
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP95104275A Expired - Lifetime EP0674053B1 (en) | 1994-03-24 | 1995-03-23 | Quick-action coupling for excavator attachment |
Country Status (8)
| Country | Link |
|---|---|
| EP (1) | EP0674053B1 (en) |
| AT (1) | ATE187220T1 (en) |
| DE (2) | DE4410194A1 (en) |
| DK (1) | DK0674053T3 (en) |
| ES (1) | ES2139767T3 (en) |
| GR (1) | GR3032345T3 (en) |
| PT (1) | PT674053E (en) |
| SI (1) | SI0674053T1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007058545A1 (en) * | 2005-11-15 | 2007-05-24 | J B Sales International Limited | Bucket fabrication |
| DE202013002103U1 (en) | 2013-03-06 | 2013-04-11 | Marc Patrick Meyer | Device for connecting components for the simultaneous transmission of force and medium |
| CN108431334A (en) * | 2015-12-07 | 2018-08-21 | 韦奇洛克设备有限公司 | locking device for quick connector |
| US11208785B2 (en) | 2018-12-12 | 2021-12-28 | Caterpillar Inc. | Tool coupling arrangement having zero offset |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19507896A1 (en) * | 1995-03-07 | 1995-10-26 | Frank Von Wolff | Quick change attachment with adaptor for dredger tools |
| AT403490B (en) * | 1996-01-15 | 1998-02-25 | Franz Winkelbauer | CLUTCH DEVICE |
| DE29601727U1 (en) * | 1996-02-02 | 1996-08-01 | Nagler Juergen | Tool changing device for hydraulic excavators |
| WO1998046835A1 (en) * | 1997-04-14 | 1998-10-22 | Baumaschinentechnik Gesellschaft Mbh | Device for attaching interchangeable items of equipment rapidly, for an excavator |
| AT409323B (en) * | 2000-12-15 | 2002-07-25 | Auer Landmaschb Ges M B H | Apparatus for shifting wood |
| DE102010006692A1 (en) | 2010-02-02 | 2011-08-04 | Meyer, Runald, 55496 | Apparatus for connection of bundle of hydraulic passages to hydraulic operable excavator tool, has quick change adaptor and socket cross member equipped with sockets of hydraulic high-speed connectors |
| DE102015225498A1 (en) | 2015-12-16 | 2017-06-22 | Oilquick Deutschland Gmbh | QUICK CHANGE SYSTEM WITH MECHANICAL SAFETY DEVICE FOR UNINTENDED DISSOLUTION OF A WORK EQUIPMENT |
| CN107130657A (en) * | 2017-04-30 | 2017-09-05 | 经海波 | A kind of excavator snap joint |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2494001A1 (en) * | 1980-11-13 | 1982-05-14 | Kodak Pathe | PACKAGING FOR SHEET BATTERY PARTICULARLY PHOTOSENSITIVE FILMS |
| WO1988001322A1 (en) * | 1986-08-18 | 1988-02-25 | Paul Owen Jones | Improved hitch |
| JPS6393934A (en) * | 1986-10-03 | 1988-04-25 | スチユア−ト．アレキサンダ−．エセツクス | Connection assembly for construction machine |
| FR2670520A1 (en) * | 1990-12-17 | 1992-06-19 | Esco Sa | Improved device for rapidly fixing a work tool onto an arm of a machine, particularly a civil engineering machine |
| EP0468771B1 (en) * | 1990-07-25 | 1995-03-01 | Japanic Corporation | A construction machine accessory coupling mechanism |
| NL9101150A (en) | 1991-07-02 | 1993-02-01 | Verachtert Bv | COUPLER. |
| SE467742B (en) * | 1991-09-06 | 1992-09-07 | Sonerud John Teodor | DEVICE FOR QUICK CONNECTION OF A TOOL TO AN EXCAVATOR WITH CONNECTING TO A DRIVE SYSTEM |
| DE9405014U1 (en) * | 1994-03-24 | 1994-05-26 | Leh Karl Heinz Josef | Attachable mounting and fastening device for a tool, an excavator bucket or the like can be attached to the extension arm of a tillage tool, excavator or the like. |
-
1994
- 1994-03-24 DE DE4410194A patent/DE4410194A1/en not_active Ceased
-
1995
- 1995-03-23 DK DK95104275T patent/DK0674053T3/en active
- 1995-03-23 DE DE59507299T patent/DE59507299D1/en not_active Expired - Lifetime
- 1995-03-23 PT PT674053T patent/PT674053E/en unknown
- 1995-03-23 AT AT95104275T patent/ATE187220T1/en active
- 1995-03-23 ES ES95104275T patent/ES2139767T3/en not_active Expired - Lifetime
- 1995-03-23 SI SI9530378T patent/SI0674053T1/en unknown
- 1995-03-23 EP EP95104275A patent/EP0674053B1/en not_active Expired - Lifetime
-
2000
- 2000-01-13 GR GR20000400041T patent/GR3032345T3/en not_active IP Right Cessation
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007058545A1 (en) * | 2005-11-15 | 2007-05-24 | J B Sales International Limited | Bucket fabrication |
| DE202013002103U1 (en) | 2013-03-06 | 2013-04-11 | Marc Patrick Meyer | Device for connecting components for the simultaneous transmission of force and medium |
| CN108431334A (en) * | 2015-12-07 | 2018-08-21 | 韦奇洛克设备有限公司 | locking device for quick connector |
| CN108431334B (en) * | 2015-12-07 | 2021-07-30 | 韦奇洛克设备有限公司 | Locking device for quick connector |
| US11208785B2 (en) | 2018-12-12 | 2021-12-28 | Caterpillar Inc. | Tool coupling arrangement having zero offset |
Also Published As
| Publication number | Publication date |
|---|---|
| EP0674053A3 (en) | 1996-04-24 |
| EP0674053A2 (en) | 1995-09-27 |
| DE59507299D1 (en) | 2000-01-05 |
| SI0674053T1 (en) | 2000-06-30 |
| ES2139767T3 (en) | 2000-02-16 |
| DE4410194A1 (en) | 1995-10-05 |
| PT674053E (en) | 2000-04-28 |
| DK0674053T3 (en) | 2000-05-29 |
| ATE187220T1 (en) | 1999-12-15 |
| GR3032345T3 (en) | 2000-04-27 |
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