WO1989005240A1 - Coupling system - Google Patents

Coupling system Download PDF

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Publication number
WO1989005240A1
WO1989005240A1 PCT/EP1987/000757 EP8700757W WO8905240A1 WO 1989005240 A1 WO1989005240 A1 WO 1989005240A1 EP 8700757 W EP8700757 W EP 8700757W WO 8905240 A1 WO8905240 A1 WO 8905240A1
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WO
WIPO (PCT)
Prior art keywords
coupling system
coupling
loading platform
arm
towing vehicle
Prior art date
Application number
PCT/EP1987/000757
Other languages
German (de)
French (fr)
Inventor
Rolf Grimm
Hubert Diemer
Original Assignee
Mafi-Transport-Systeme 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 Mafi-Transport-Systeme Gmbh filed Critical Mafi-Transport-Systeme Gmbh
Priority to PCT/EP1987/000757 priority Critical patent/WO1989005240A1/en
Publication of WO1989005240A1 publication Critical patent/WO1989005240A1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60D—VEHICLE CONNECTIONS
    • B60D1/00—Traction couplings; Hitches; Draw-gear; Towing devices
    • B60D1/24—Traction couplings; Hitches; Draw-gear; Towing devices characterised by arrangements for particular functions
    • B60D1/42—Traction couplings; Hitches; Draw-gear; Towing devices characterised by arrangements for particular functions for being adjustable
    • B60D1/46—Traction couplings; Hitches; Draw-gear; Towing devices characterised by arrangements for particular functions for being adjustable vertically
    • B60D1/465—Traction couplings; Hitches; Draw-gear; Towing devices characterised by arrangements for particular functions for being adjustable vertically comprising a lifting mechanism, e.g. for coupling while lifting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60P—VEHICLES ADAPTED FOR LOAD TRANSPORTATION OR TO TRANSPORT, TO CARRY, OR TO COMPRISE SPECIAL LOADS OR OBJECTS
    • B60P1/00—Vehicles predominantly for transporting loads and modified to facilitate loading, consolidating the load, or unloading
    • B60P1/04—Vehicles predominantly for transporting loads and modified to facilitate loading, consolidating the load, or unloading with a tipping movement of load-transporting element
    • B60P1/16—Vehicles predominantly for transporting loads and modified to facilitate loading, consolidating the load, or unloading with a tipping movement of load-transporting element actuated by fluid-operated mechanisms
    • B60P1/18—Vehicles predominantly for transporting loads and modified to facilitate loading, consolidating the load, or unloading with a tipping movement of load-transporting element actuated by fluid-operated mechanisms with relative displacement of the wheel axles

Definitions

  • the invention relates to a coupling system between a towing vehicle and a mobile loading platform, in particular between an industrial truck and a roller pallet.
  • Coupling systems of this type are used inter alia. used on tractors, such as floor conveyors, with the aid of which trailers, such as loading platforms or the like, have to be moved by pulling or pushing. By means of the coupling systems mentioned, a detachable connection between the towing vehicle and trailer is to be established. Coupling systems already in use are characterized in particular by constructively complex and thus costly designs.
  • the object of the invention is to provide mobile loading platforms, in particular so-called roller pallets, to a towing vehicle by means of a coupling system which is as compact as possible, e.g. to detachably couple and lift an industrial truck so that a transport unit for loads of all kinds can be formed in connection with the towing vehicle.
  • the coupling system is formed by a plurality of articulated components, at least one of which can be changed in length, with one corner point of the coupling system being displaced on the towing vehicle and another corner point as a holding element arranged on the loading platform side for the positive connection of the towing vehicle and loading platform is trained.
  • a structurally simple coupling system is designed, by means of which the loading pallet, such as the rolling pallet, can be easily raised and safely coupled to a towing vehicle
  • the coupling system is preferably formed from three components which are connected to one another in their corner regions and are arranged in the manner of a triangle of forces. The system is therefore statically flawless.
  • the use of a coupling system that exceeds three components, of which at least one can be changed in length is also covered by the scope of protection.
  • variable-length component is designed as a piston-cylinder unit, which can preferably be operated hydraulically, and which is articulated in the region of its two end regions in each case with the one end of a coupling arm and the one end of a supporting arm, the free ends of the coupling arm and the supporting arm, the forming the third corner point, are also articulated together.
  • the piston-cylinder unit is arranged in the area of the towing vehicle and can be changed in length at a predetermined angle in the direction of the loading platform to be accommodated.
  • the corner point on the towing vehicle side formed by one end of the piston-cylinder unit and one end of the support arm can be moved by means of a freely movable one , cardanic device, preferably by a spherical pin, relocated to the towing vehicle. This ensures that the loading platform can move freely when cornering, climbing or sloping.
  • the coupling arm in a hook shape, with its tapering end with the. Free end of the piston-cylinder unit is connected and in the region of its other end, outside the connection to the support arm, the holding element is formed.
  • the holding element is formed by a thickening of the coupling arm in the area of its connection to the tag arm, which forms a support surface for one end of the loading platform, a horizontally extending supporting bolt connected to the loading platform being provided in this area of the loading platform below the thickening , which engages in a corresponding recess in the thickened area of the coupling arm.
  • the coupling arm is tilted around its hinge point (corner point between the support arm and the coupling arm) and the hook-shaped end comes into contact with the support bolts of the loading platform in the area of its thickening provided with the recess mentioned .
  • the support surface which, according to a further idea of the invention, is formed by a separate element with an approximately angular cross-section connected to the coupling arm, comes to rest on the contact surface of the loading platform, whereupon upon further extension of the hydraulic cylinder, since there is now frictional connection, the loading platform is raised.
  • the loading platform can now be moved (pull and push) as it is now firmly connected to the towing vehicle by the triangle of forces and because it is provided with wheels at one end.
  • the reverse process (lowering and disengaging) is accomplished by shortening the hydraulic cylinder.
  • the invention is illustrated by a schematic diagram and is described as follows.
  • the coupling system 1 according to the invention is arranged between a towing vehicle 3 which can be moved on wheels 2 and a loading platform 5 which can be moved on rollers 4.
  • the coupling system 1 essentially consists of three components 6, 7 and 8, which are articulatedly connected to one another 9, 10 and 11
  • Component 6 is formed by a hydraulically actuated piston-cylinder unit
  • component 7 is designed as a coupling arm
  • component 8 is designed as a supporting arm
  • components 6 - 8 are arranged such that a triangle of forces with the corner points A, B, and C.
  • the coupling arm 7 is inclined and adjusted in height about its articulation point C by extension, or by extending the hydraulic cylinder 6 along its force axis 12.
  • the support arm 8 can be pivoted about the articulation point A with a radius that corresponds to its length.
  • the coupling system 1 has a holding element 13, which is used for the non-positive connection of the towing vehicle 3 and loading platform 5 serves.
  • the corner point A (articulation point A) formed by the components 6 and 8 is displaced relative to the towing vehicle 3 by means of a cardanic device 14 (spherical pin) which is freely movable on all sides.
  • the holding element 13 is formed by the following elements:
  • the coupling arm 7 is hook-shaped. In the area of its tapered end 15 bent towards the towing vehicle 3, it is connected 10 to the hydraulic cylinder 6 (pivot point B). Its other end 16 bent towards the loading platform 5 is thickened.
  • a recess 17 is provided which interacts with a support bolt 18 which runs transversely to the direction of travel and is firmly connected to the loading platform 5. Furthermore, this end 16 of the coupling arm 7 is formed into a vertical support surface IS in order to be supported on a contact surface 20 located on the loading platform and thus to produce the non-positive connection.
  • the support surface 19 is preferably formed by an element 21 which is approximately angular in cross section and which is connected to the thickened end 16.
  • the coupling arm 7 is inclined about its articulation point C and the thickened end 16 comes to rest on the carrying bolt 17 of the loading platform 5.
  • the support surface 21 of the coupling arm comes through a further extension of the hydraulic cylinder 6 7 on the contact surface 20 of the loading platform 5 for planting, whereupon the loading platform 5 is raised when the hydraulic cylinder is further extended, since there is now a frictional connection.
  • the loading platform 5 since it is now firmly connected to the towing vehicle 3 by the triangle of forces 6 - 8 with the articulation points 9 - 11 (A - C), can be moved as desired.
  • the reverse process (lowering and disengaging) is accomplished by shortening the hydraulic cylinder.

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  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Body Structure For Vehicles (AREA)

Abstract

A novel coupling system between a traction vehicle and a loading platform consists of several hindgedly linked components (6-8) which preferably form a triangle of forces and at least one (6) of which has an adjustable length. One apex (A) of the triangular forces (1) is also hindgerdly linked to the traction vehicle (3), while an other apex (C) is designed as a holding element (13) on the side of the holding platform where it cooperates with a lifting lug (18) or similar.

Description

Kupplungssystem Coupling system
Die Erfindung betrifft ein Kupplungssystem zwischen einem Zugfahrzeug und einer fahrbaren Ladeplattform, insbesondere zwischen einem Flurförderzeug und einer Rollpalette .The invention relates to a coupling system between a towing vehicle and a mobile loading platform, in particular between an industrial truck and a roller pallet.
Derartige Kupplungssyteme werden u.a. bei Zugmaschinen, wie Flurförderern eingesetzt, mit deren Hilfe Anhänger, wie Ladeplattformen oder dgl. durch Ziehen oder Schieben bewegt werden müssen. Mittels der angesprochenen Kupplungssysteme soll somit eine lösbare Verbindung zwischen Zugfahrzeug und Anhänger hergestellt werden. Bereits eingesetzte Kupplungssyεteme zeichnen sich insbesondere durch konstruktiv aufwendige und somit kostspielige Bauweisen aus.Coupling systems of this type are used inter alia. used on tractors, such as floor conveyors, with the aid of which trailers, such as loading platforms or the like, have to be moved by pulling or pushing. By means of the coupling systems mentioned, a detachable connection between the towing vehicle and trailer is to be established. Coupling systems already in use are characterized in particular by constructively complex and thus costly designs.
Der Erfindung liegt die Aufgabe zugrunde, fahrbare Ladeplattformen, insbesondere sogenannte Rollpaletten mittels eines möglichst kompakt bauenden Kupplungssystemes an ein Zugfahrzeug, wie z.B. ein Flurförderzeug lösbar anzukuppeln und anzuheben, damit in Verbindung mit dem Zugfahrzeug eine Transporteinheit für Ladungen aller Art gebildet werden kann.The object of the invention is to provide mobile loading platforms, in particular so-called roller pallets, to a towing vehicle by means of a coupling system which is as compact as possible, e.g. to detachably couple and lift an industrial truck so that a transport unit for loads of all kinds can be formed in connection with the towing vehicle.
Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß das Kupplungssystem durch mehrere, gelenkig miteinander verbundene Bauteile gebildet ist, von denen mindestens eines längenveränderbar ist, wobei ein Eckpunkt des Kupplungssystemes am Zugfahrzeug verlagert und ein weiterer Eckpunkt als ladeplattformseitig angeordnetes Halteelement zur kraftschlüssigen Verbindung von Zugfahrzeug und Ladeplattform ausgebildet ist. Infolge der Verwendung mehrerer gelenkig miteinander verbundener, teilweise längenveränderlicher Bauteile ird eir konstruktiv einfaches, Kupplungssystem konzipiert, mittels welchem die Ladepalette, wie z.B. Rollpalette, problemlos angehoben und sicher an ein Zugfahrzeug angekuppelt werden ka Vorzugsweise wird das Kupplungssystem aus drei, gelenkig in ihren Eckbereichen miteinander verbundenen Bauteilen gebildet, die nach Art eines Kräftedreieckes angeordπ-et sind. Das System ist somit statisch einwandfrei bestimmt. Alternativ ist - je nach Anwendungsfall - der Einsatz eines drei Bauteile überschreitenden Kupplungssystemes, von denen mindestens eins längenveränderbar ist, vom Schutzumfang mit abgedeckt.This object is achieved in that the coupling system is formed by a plurality of articulated components, at least one of which can be changed in length, with one corner point of the coupling system being displaced on the towing vehicle and another corner point as a holding element arranged on the loading platform side for the positive connection of the towing vehicle and loading platform is trained. As a result of the use of several articulated, partially length-adjustable components, a structurally simple coupling system is designed, by means of which the loading pallet, such as the rolling pallet, can be easily raised and safely coupled to a towing vehicle The coupling system is preferably formed from three components which are connected to one another in their corner regions and are arranged in the manner of a triangle of forces. The system is therefore statically flawless. Alternatively, depending on the application, the use of a coupling system that exceeds three components, of which at least one can be changed in length, is also covered by the scope of protection.
Das längenveränderliche Bauteils ist als Kolben-Zylindereinheit ausgebildet, die vorzugsweise hydraulisch betätigbar ist, und die irr Bereich ihrer beiden Endbereiche gelenkig jeweils mit dem einen Ende eines Kupplungsarmes sowie dem einen Ende eines Tragarmes verbunden ist, wobei die freien Enden von Kupplungsarm und Tragarm, den dritten Eckpunkt bildend, ebenfalls gelenkig miteinander verbunden sind.The variable-length component is designed as a piston-cylinder unit, which can preferably be operated hydraulically, and which is articulated in the region of its two end regions in each case with the one end of a coupling arm and the one end of a supporting arm, the free ends of the coupling arm and the supporting arm, the forming the third corner point, are also articulated together.
Einem weiteren Gedanken der Erfindung gemäß ist die Kolben-Zylindereinheit im Bereich des Zugfahrzeuges angeordnet und unter einem vorgegebenen Winkel in Richtung der aufzunehmenden Ladeplattform längenveränderbar Der durch das eine Ende der Kolben-Zylindereinheit sowie einem Ende des Tragarmes gebildete zugfahrzeugseitige Eckpunkt, ist mittels einer frei beweglichen, kardanischen Einrichtung, vorzugsweise durch einen kugelförmig ausgebildeten Zapfen, gegenüber dem Zugfahrzeug verlagert. Somit ist eine freie Beweglichkeit der Ladeplattform bei Kurven- bzw. Steigungs- oder Neigungsfahrt gewährleistet.According to a further idea of the invention, the piston-cylinder unit is arranged in the area of the towing vehicle and can be changed in length at a predetermined angle in the direction of the loading platform to be accommodated. The corner point on the towing vehicle side formed by one end of the piston-cylinder unit and one end of the support arm can be moved by means of a freely movable one , cardanic device, preferably by a spherical pin, relocated to the towing vehicle. This ensures that the loading platform can move freely when cornering, climbing or sloping.
Um eine optimale Geometrie beim Kuppeln bzw. Anheben der Ladeplattform zu erhalten, wird darüberhinaus vorgeschlagen, den Kupplungsarm hakenförmig auszubilden, wobei sein sich verjüngendes Ende mit der. freien Ende der Kolben-Zylindereinheit verbunden ist und im Bereich seines anderen Endes, außerhalb der Verbindung mit dem Tragarm, das Halteelement gebildet wird. Vorzugsweise wird das Halteelement durch eine Verdickung des Kupplungsarmes im Bereich seiner Verbindung mit dem Tagarm gebildet, die eine Auflagefläche für das eine Ende der Ladeplattform bildet, wobei in diesem Bereich der Ladeplattform unterhalb der Verdickung ein sich horizontal erstreckender, mit der Ladeplattform verbundener Tragbolzen vorgesehen ist, der in eine korrespondierende Ausnehmung im verdickten Bereich des Kupplungsarmes eingreift.In order to obtain an optimal geometry when coupling or lifting the loading platform, it is also proposed to design the coupling arm in a hook shape, with its tapering end with the. Free end of the piston-cylinder unit is connected and in the region of its other end, outside the connection to the support arm, the holding element is formed. Preferably, the holding element is formed by a thickening of the coupling arm in the area of its connection to the tag arm, which forms a support surface for one end of the loading platform, a horizontally extending supporting bolt connected to the loading platform being provided in this area of the loading platform below the thickening , which engages in a corresponding recess in the thickened area of the coupling arm.
Wird nun der Hydraulikzylinder in seiner Kraftachse in der Länge verstellt (verlängert) , wird der Kupplungsarm um seinen Gelenkpunkt (Eckpunkt zwischen Tragarm und Kupplungsarm) geneigt und das hakenförmige Ende kommt im Bereich seiner mit der angesprochenen Ausnehmung versehenen Verdickung zur Anlage an den Tragbolzen der Ladeplattform. Durch weitere Verlängerung des Hydralulikzylinders kommt die Stützfläche, die, einem weiteren Gedanken der Erfindung gemäß, durch ein separates mit dem Kupplungsarm verbundenes, im Querschnitt etwa winkelförmiges Element gebildet wird, an der Anlagefläche der Ladeplattform zur Anlage, worauf dann bei weiterer Verlängerung des Hydraulikzylinders , da nunmehr Kraftschluß besteht, die Ladeplattform angehoben wird.If the length of the hydraulic cylinder in its force axis is adjusted (extended), the coupling arm is tilted around its hinge point (corner point between the support arm and the coupling arm) and the hook-shaped end comes into contact with the support bolts of the loading platform in the area of its thickening provided with the recess mentioned . By further extending the hydralulic cylinder, the support surface, which, according to a further idea of the invention, is formed by a separate element with an approximately angular cross-section connected to the coupling arm, comes to rest on the contact surface of the loading platform, whereupon upon further extension of the hydraulic cylinder, since there is now frictional connection, the loading platform is raised.
Nachdem eine beliebige gewünschte Höhe erreicht ist, kann die Ladeplattform, da sie nunmehr durch das Kräftedreieck fest mit dem Zugfahrzeug verbunden ist, und da sie an einem Ende mit Laufrädern versehen ist, beliebig verfahren werden (ziehen und schieben) . Der umgekehrte Vorgang (absenken und auskuppeln) wird durch Verkürzen des Hydraulikzylinders bewirkt.After any desired height has been reached, the loading platform can now be moved (pull and push) as it is now firmly connected to the towing vehicle by the triangle of forces and because it is provided with wheels at one end. The reverse process (lowering and disengaging) is accomplished by shortening the hydraulic cylinder.
Die Erfindung ist anhand einer Prinzipskizze dargestellt und wird wie folgt beschrieben. Das erfindungsgemäße Kupplungssystem 1 ist zwischen einem auf Rädern 2 verfahrbaren Zugfahrzeug 3 und einer auf Rollen 4 verfahrbaren Ladeplattform 5 angeordnet". . Das Kupplungssystem 1 besteht im wesentlichen aus drei Bauteilen 6,7 und 8, die gelenkig miteinander verbunden sind 9,10 und 11. Das Bauteil 6 wird durch eine hydraulisch betätigbare Kolben-Zylindereinheit gebildet; das Bauteil 7 ist als Kupplungsarm und das Bauteil 8 ist als Tragarm ausgebildet. Die Bauteile 6 - 8 sind dergestalt angeordnet, daß ein Kräftedreieck mit der Eckpunkten A,B, und C gebildet wird. Durch Verlängerung, d.r durch Ausfahren des Hydraulikzylinders 6 entlang seiner Kraftachse 12 wird der Kupplungsarm 7 um seinen Gelenkpunkt C geneigt und in seiner Höhe verstellt. Der Tragarm 8 ist um den Gelenkpunkt A mit einem Radius , der seiner Länge entspricht, schwenkbar. Im Bereich der Ladeplattform 5 weist das Kupplungssystem 1 ein Halteelement 13 auf, das zur kraftschlüssigen Verbindung von Zugfahrzeug 3 und Ladeplattform 5 dient. Der durch die Bauteile 6 und 8 gebildete Eckpunkt A (Gelenkpunkt A) ist gegenüber dem Zugfahrzeug 3 mittels einer allseitig frei beweglichen kardanischen Einrichtung 14 (kugelförmiger Zapfen) verlagert. Das Halteelement 13 ist durch folgende Elemente gebildet: Der Kupplungsarm 7 ist hakenförmig ausgebildet. Im Bereich seines sich verjüngenden zum Zugfahrzeug 3 hin abgebogenen Endes 15 ist er mit dem Hydraulikzylinder 6 verbunden 10 (Gelenkpunkt B) . Sein anderes, zur Ladeplattfrom 5 abgebogenes Ende 16 ist verdickt ausgebildet. Im unteren Bereich der Verdickung 16 ist eine Ausπehmung 17 vorgesehen, die mit einem quer zur Fahrtrichtung verlaufenden, mit der Ladeplattform 5 fest verbundenen Tragbolzen 18 zusammenwirkt. Des weiterer ist dieses Ende 16 des Kupplungsarmes 7 zu einer vertikalen Stützfläche IS ausgebildet, um sich an einer an der Ladeplattform befindlichen Anlagefläche 20 abzustützen und damit den Kraftschluß herzustellen. Die Stützfläche 19 ist hierbei vorzugsweise durch ein im Querschnitt etwa winkelförmiges Element 21 gebildet, welches mit dem verdickten Ende 16 verbunden ist.The invention is illustrated by a schematic diagram and is described as follows. The coupling system 1 according to the invention is arranged between a towing vehicle 3 which can be moved on wheels 2 and a loading platform 5 which can be moved on rollers 4. The coupling system 1 essentially consists of three components 6, 7 and 8, which are articulatedly connected to one another 9, 10 and 11 Component 6 is formed by a hydraulically actuated piston-cylinder unit, component 7 is designed as a coupling arm and component 8 is designed as a supporting arm, components 6 - 8 are arranged such that a triangle of forces with the corner points A, B, and C. The coupling arm 7 is inclined and adjusted in height about its articulation point C by extension, or by extending the hydraulic cylinder 6 along its force axis 12. The support arm 8 can be pivoted about the articulation point A with a radius that corresponds to its length. In the area of the loading platform 5, the coupling system 1 has a holding element 13, which is used for the non-positive connection of the towing vehicle 3 and loading platform 5 serves. The corner point A (articulation point A) formed by the components 6 and 8 is displaced relative to the towing vehicle 3 by means of a cardanic device 14 (spherical pin) which is freely movable on all sides. The holding element 13 is formed by the following elements: The coupling arm 7 is hook-shaped. In the area of its tapered end 15 bent towards the towing vehicle 3, it is connected 10 to the hydraulic cylinder 6 (pivot point B). Its other end 16 bent towards the loading platform 5 is thickened. In the lower region of the thickening 16, a recess 17 is provided which interacts with a support bolt 18 which runs transversely to the direction of travel and is firmly connected to the loading platform 5. Furthermore, this end 16 of the coupling arm 7 is formed into a vertical support surface IS in order to be supported on a contact surface 20 located on the loading platform and thus to produce the non-positive connection. The support surface 19 is preferably formed by an element 21 which is approximately angular in cross section and which is connected to the thickened end 16.
Zur besseren Verdeutlichung des Erfindungsgegenstandes wird seine Funktion nochmals kurz beschrieben:For a better clarification of the subject matter of the invention, its function is briefly described again:
Wird der Hydraulikzylinder 6 entlang seiner Kraftachse 12 in der Länge verstellt, wird der Kupplungsarm 7 um seinen Gelenkpunkt C geneigt und das verdickte Ende 16 kommt zur Anlage an dem Tragbolzen 17 der Ladeplattform 5. Durch weitere Verlängerung des Hydraulikzylinders 6 kommt die Stützfläche 21 des Kupplungsarmes 7 an der Anlagefläche 20 der Ladeplattform 5 zur Anlage, worauf dann bei weiterer Verlängerung des Hydraulikzylinders, da nunmehr ein Kraftschluß besteht, die Ladeplattform 5 angehoben wird. Nachdem eine gewünschte Hubhöhe erreicht ist, kann die Ladeplattform 5, da sie nunmehr durch das Kräftedreieck 6 - 8 mit den Gelenkpunkten 9 - 11 (A - C) fest mit dem Zugfahrzeug 3 verbunden ist, beliebig verfahren werden. Der umgekehrte Vorgang (Absenken und Auskuppeln) wird durch Verkürzen des Hydraulikzylinders bewirkt . If the hydraulic cylinder 6 is adjusted in length along its force axis 12, the coupling arm 7 is inclined about its articulation point C and the thickened end 16 comes to rest on the carrying bolt 17 of the loading platform 5. The support surface 21 of the coupling arm comes through a further extension of the hydraulic cylinder 6 7 on the contact surface 20 of the loading platform 5 for planting, whereupon the loading platform 5 is raised when the hydraulic cylinder is further extended, since there is now a frictional connection. After a desired lifting height has been reached, the loading platform 5, since it is now firmly connected to the towing vehicle 3 by the triangle of forces 6 - 8 with the articulation points 9 - 11 (A - C), can be moved as desired. The reverse process (lowering and disengaging) is accomplished by shortening the hydraulic cylinder.

Claims

"Patentansprüche "Claims
1. Kupplungssystem zwischen einem Zugfahrzeug und einer fahrbaren Ladeplattform, insbesondere zwischen- einem kraftbetriebenen Fluförderzeug und einer Rollpalette, dadurch gekennzeichnet, daß das Kupplungssystem (1) durch mehrere, gelenkig miteinande: verbundene Bauteile (6 - 8) gebildet ist, von denen mindestens eins längenveränderbar ist (6) , wobei ein Eckpunkt (A) des Kupplungssystems (1) am Zugfahrzeug (3) verlagert und ein weiterer Eckpunkt (C) als ladeplattformseitig angeordnetes Halteelement (13) zur kraftschlüssigen Verbindung von Zugfahrzeug (3) und Ladeplattform (5) ausgebildet ist.1. Coupling system between a towing vehicle and a mobile loading platform, in particular between a powered truck and a roller pallet, characterized in that the coupling system (1) is formed by several, articulated with each other: connected components (6 - 8), of which at least one Can be changed in length (6), a corner point (A) of the coupling system (1) being moved on the towing vehicle (3) and a further corner point (C) as a holding element (13) on the loading platform side for the non-positive connection of the towing vehicle (3) and loading platform (5) is trained.
2. Kupplungsεyste nach Anspruch 1, dadurch gekennzeichnet daß das Kupplungssystem (1) aus drei, gelenkig2. Coupling system according to claim 1, characterized in that the coupling system (1) consists of three, articulated
(9 - 11) in ihren Eckbereichen (A - C) miteinander verbundenen Bauteilen (6 - 8) gebildet ist, die nach Art eines Kräftedreiecks angeordnet sind.(9 - 11) in their corner regions (A - C) interconnected components (6 - 8) are formed, which are arranged in the manner of a triangle of forces.
3. Kuppluπgssystem nach den Ansprüche 1 und 2, dadurch gekennzeichnet, daß das längenveränderliche Bauteil (6) als Kolben-Zylindereinheit ausgebildet ist, welche im Bereich ihrer beiden Endbereiche gelenkig jeweils mit dem einen Ende eines Kupplungsarmes (7) sowie dem einen Ende eines Tragarmes (8) verbunden ist (9,11) wobei die freien Enden von Kupplungsarm (7) und Tragarm (8) den dritten Eckpunkt (B) bildend, ebenfalls gelenkig miteinander verbunden sind (10).3. Coupling system according to claims 1 and 2, characterized in that the variable-length component (6) is designed as a piston-cylinder unit, which is articulated in the region of its two end regions in each case with one end of a coupling arm (7) and one end of a support arm (8) is connected (9, 11), the free ends of the coupling arm (7) and support arm (8) forming the third corner point (B), are also connected to one another in an articulated manner (10).
4. Kupplungssystem nach den Ansprüchen 1 bis 3, dadurch gekennzeichnet, daß die Kolben-Zyliήdereinheit (6) hydraulisch betätigbar ist. f4. Coupling system according to claims 1 to 3, characterized in that the piston-cylinder ή dereinheit (6) is hydraulically actuated. f
5. Kupplungssystem nach den Ansprüchen 1 bis 4, dadurch gekennzeichnet, daß die Kolben-Zylindereinheit (6) , im Bereich des Zugfahrzeuges (3) angeordnet und unter einem vorgegebenen Winkel in Richtung der aufzunehmenden Ladeplattform (5) längenveränderbar ist .5. Coupling system according to claims 1 to 4, characterized in that the piston-cylinder unit (6), arranged in the region of the towing vehicle (3) and can be changed in length at a predetermined angle in the direction of the loading platform (5).
6. Kupplungssystem nach den Ansprüchen 1 bis 5, dadurch gekennzeichnet, daß der zugfahrzeugseitige Eckpunkt (A) mittels einer freibeweglichen kardanischen Einrichtung (14) gegenüber dem Zugfahrzeug (3) verlagert ist.6. Coupling system according to claims 1 to 5, characterized in that the corner point (A) on the towing vehicle side is displaced by means of a freely movable cardanic device (14) relative to the towing vehicle (3).
7. Kupplungssystem nach den Ansprüchen 1 bis 6, dadurch gekennzeichnet, daß der Kupplungsarm (7) hakenförmig ausgebildet ist, wobei sein sich verjüngendes Ende (15) mit dem freien Ende der Kolben-Zylindereinheit (6) verbunden ist und im Bereich seines anderen Endes (16) außerhalb der Verbindung (11) mit dem Tragarm (8) das Halteelement (13) gebildet wird.7. Coupling system according to claims 1 to 6, characterized in that the coupling arm (7) is hook-shaped, its tapered end (15) being connected to the free end of the piston-cylinder unit (6) and in the region of its other end (16) outside the connection (11) with the support arm (8), the holding element (13) is formed.
8. Kupplungssystem nach den Ansprüchen 1 bis 7, dadurch gekennzeichnet, daß das Halteelement (13) durch eine Verdickung (16) des Kupplungsarmes (7) im Bereich seiner Verbindung (11) mit dem Tragarm (8) gebildet ist, die eine Stützfläche (19) für das eine Ende der Ladeplattform (5) bildet, wobei in diesem Bereich der Ladeplattform (5) unterhalb der Verdickung (16) ein sich horizontal erstreckender mit der Ladeplattform (5) verbundener Tragbolzen (18) vorgesehen ist, der in eine korrespondierende Ausnehmung (17) im verdickten Bereich (16) αes Kupplungsarmes (7) eingreift. 8. Coupling system according to claims 1 to 7, characterized in that the holding element (13) by a thickening (16) of the coupling arm (7) in the region of its connection (11) with the support arm (8) is formed, which has a support surface ( 19) for one end of the loading platform (5), wherein in this area of the loading platform (5) below the thickening (16) a horizontally extending support bolt (18) is provided which is connected to the loading platform (5) and which fits into a corresponding one Recess (17) engages in the thickened area (16) of the coupling arm (7).
9. Kupplungssystem nach den Ansprüchen 1 bis 8, dadurch gekennzeichnet, daß die Stützfläche (19) durch ein separates, mit dem Kupplungsarm (7) verbundenes im Querschnitt etwa winkelförmiges Element (21) gebildet ist. 9. Coupling system according to claims 1 to 8, characterized in that the support surface (19) by a separate, with the coupling arm (7) connected in cross-section approximately angular element (21) is formed.
PCT/EP1987/000757 1987-12-04 1987-12-04 Coupling system WO1989005240A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/EP1987/000757 WO1989005240A1 (en) 1987-12-04 1987-12-04 Coupling system

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Application Number Priority Date Filing Date Title
PCT/EP1987/000757 WO1989005240A1 (en) 1987-12-04 1987-12-04 Coupling system

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WO1989005240A1 true WO1989005240A1 (en) 1989-06-15

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PCT/EP1987/000757 WO1989005240A1 (en) 1987-12-04 1987-12-04 Coupling system

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0788902A1 (en) * 1996-02-07 1997-08-13 Koninklijke Nooteboom Trailers B.V. Multi-section trailer
DE19755262A1 (en) * 1997-12-12 1999-06-17 Claas Selbstfahr Erntemasch Agricultural towing vehicle

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB606688A (en) * 1944-11-08 1948-08-18 Ferguson Harry Inc Improvements in trailer hitches
US3139289A (en) * 1963-01-21 1964-06-30 Atlas Hoist & Body Inc Tractor with elevatable fifth-wheel
CH480221A (en) * 1969-03-19 1969-10-31 Mattille & Fils S A A Vehicle consisting of a tractor unit and a semi-trailer
DE1921477A1 (en) * 1969-04-26 1970-11-12 Kamag Maschb Gmbh & Co Device for connecting a loading frame to a tractor unit
FR2359021A1 (en) * 1976-07-23 1978-02-17 Mafi Transport Systeme Gmbh HITCHING DEVICE FOR SEMI-TRAILER TRACTOR

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB606688A (en) * 1944-11-08 1948-08-18 Ferguson Harry Inc Improvements in trailer hitches
US3139289A (en) * 1963-01-21 1964-06-30 Atlas Hoist & Body Inc Tractor with elevatable fifth-wheel
CH480221A (en) * 1969-03-19 1969-10-31 Mattille & Fils S A A Vehicle consisting of a tractor unit and a semi-trailer
DE1921477A1 (en) * 1969-04-26 1970-11-12 Kamag Maschb Gmbh & Co Device for connecting a loading frame to a tractor unit
FR2359021A1 (en) * 1976-07-23 1978-02-17 Mafi Transport Systeme Gmbh HITCHING DEVICE FOR SEMI-TRAILER TRACTOR

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0788902A1 (en) * 1996-02-07 1997-08-13 Koninklijke Nooteboom Trailers B.V. Multi-section trailer
DE19755262A1 (en) * 1997-12-12 1999-06-17 Claas Selbstfahr Erntemasch Agricultural towing vehicle

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