EP0927698A1 - Transversely movable working apparatus on wheels - Google Patents

Transversely movable working apparatus on wheels Download PDF

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Publication number
EP0927698A1
EP0927698A1 EP97119266A EP97119266A EP0927698A1 EP 0927698 A1 EP0927698 A1 EP 0927698A1 EP 97119266 A EP97119266 A EP 97119266A EP 97119266 A EP97119266 A EP 97119266A EP 0927698 A1 EP0927698 A1 EP 0927698A1
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EP
European Patent Office
Prior art keywords
vehicle frame
axle
axis
implement
articulated
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP97119266A
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German (de)
French (fr)
Other versions
EP0927698B1 (en
Inventor
Hans Schaeff
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.)
Schaeff Terex GmbH and Co KG
Original Assignee
Karl Schaeff GmbH and Co Maschinenfabrik
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 Karl Schaeff GmbH and Co Maschinenfabrik filed Critical Karl Schaeff GmbH and Co Maschinenfabrik
Priority to EP19970119266 priority Critical patent/EP0927698B1/en
Priority to DE59707518T priority patent/DE59707518D1/en
Publication of EP0927698A1 publication Critical patent/EP0927698A1/en
Application granted granted Critical
Publication of EP0927698B1 publication Critical patent/EP0927698B1/en
Anticipated expiration legal-status Critical
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
    • B66F9/06—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks
    • B66F9/075—Constructional features or details
    • B66F9/07545—Overhead guards
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
    • B66F9/06—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks
    • B66F9/065—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks non-masted
    • B66F9/0655—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks non-masted with a telescopic boom
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
    • B66F9/06—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks
    • B66F9/075—Constructional features or details
    • B66F9/07568—Steering arrangements

Definitions

  • the invention relates to a transversely movable implement that can be driven on wheels with a first axle attached to a rigid vehicle frame.
  • Such devices are, for example, telehandlers with a telescopic extendable and upward swiveling mast, on which one normally attached fork with other tools such as light material shovels, Crane hooks, clamps, etc. can be replaced.
  • Telescopic handlers are used to pick up a load and with the help to transport the complex tire chassis to another location.
  • these devices work almost stationary, if the considerable Range and height of your telescopic arm is used, for example to bring a load to a construction site at a height of 10 meters and there to drop off at a specific point.
  • the device must be supported and leveled across uneven terrain across the vehicle's longitudinal axis so that the steeply adjustable telescopic mast including its Load approximately in the vertical plane containing the vehicle's longitudinal axis remains.
  • a load in the considerable given when the telescopic mast is extended Move the distance laterally by approximately ⁇ 0.5 m, for example to enter a side opening in a building.
  • Fork carrier To accomplish this transverse movement of the load, it is known as Fork carrier to provide a hydraulically operated cross slide, the Guides are attached to the telescopic mast end. Because of the weight of cross slides, guides and drive means, however, is reduced Payload, which is particularly evident in telescopic hoists of up to 10 meters disadvantageously restrictive noticeable.
  • a support device which can be lowered from the end of the vehicle frame known, the vertical lifting stamp fixed to the vehicle frame and one laying on the timetable according to the intended one Gravity radius has curved beams. Because the one with the jacks firmly connected upper part of the bar divided in the longitudinal direction is slidably mounted on the lower part and both beam parts are motorized are movable relative to one another, the vehicle can be moved through on it the support device raised end in approximately the length of the beam Swivel the specified angle sideways.
  • US-PS 4 923 361 is a transverse movement device for a forklift known, the vehicle frame via a rear steering wheel pair and supported by two front wheels mounted on rigid axles is. On the underside of two that extend from to over the front wheels Forks are located around the tines Axle swiveling support legs, the free end of which is articulated Footplate carries. When the fork is raised, a Cross movement of each fork tine a support leg by pedal operation folded into an end position determined by a stop, in which its Extension direction forms an acute angle with the vertical.
  • the invention is based on the object of being on wheels Mobile transverse moving implement of the type mentioned above to provide with a simplified device for transverse movement of the implement.
  • the second axis of the implement is on your vehicle frame is slidably arranged with respect to seen the vehicle frame can perform a circular shift.
  • the second axis of the implement is on your vehicle frame is slidably arranged with respect to seen the vehicle frame can perform a circular shift.
  • both axes of the implement are with respect to those specified by the rigid vehicle frame Longitudinal vehicle axis aligned to each other. If necessary, a Transverse displacement along the second axis, which is arranged to be displaceable a circular slide path, i.e.
  • the two axes of the implement are always aligned parallel to each other, but the center shifts the movably arranged axis with respect to the vehicle center axis and the distance between the two axes is reduced.
  • the transverse shift the working device with the movably arranged second axis all wheels attached to the axles firmly on the ground stands is with the transverse displacement of the movably arranged second Axis a transverse movement of the implement through a small angle of connected up to 5 °.
  • the invention are thus for transverse movement of the Work tools no additional support devices for lifting the Front axle and moving the vehicle more necessary.
  • Much more the function of the support device according to the invention is displaceable by the arranged second axis adopted.
  • the second axis is by means of a parallel core arranged on the vehicle frame.
  • the parallel links are advantageous by means of an associated pivot actuating means about vertical axes swiveling.
  • This Design according to the invention ensures a particularly stable arrangement the second axis on the rigid vehicle frame.
  • the ends are on the vehicle frame articulated parallel linkage articulated at the other end on an axle beam, in which the second axis is centered and about a longitudinal axis of the implement is rotatably mounted.
  • This configuration of the invention Implement is the second axis for cross-slope compensation of the implement adjustable in a conventional manner.
  • the second axis is turned to compensate for the bank by means of a hydraulic cylinder.
  • FIG 1 shows as a working device 1 according to the invention a wheeled Telescopic handler with a rigid vehicle frame 4.
  • a pendulum-suspended rear axle 2 is fastened as the first axle 2 (Axle pivot bearing 18) and as a second axis 3 a front axle 3 arranged transversely to describe a circular shift.
  • the exact functioning of the front axle 3 arranged according to the invention is explained in detail below with reference to FIGS. 2 and 3.
  • the telehandler also has one of the vehicle frames 4 carried vehicle body 5, to which a rear counterweight 6 and a telescopic arm 7 belong.
  • the telescopic arm 7 has on the vehicle body a horizontal bearing axis 8 and has a first extension 9 and optionally a second extension 10 and an extension nose 11.
  • On the push-out nose 11 can be actuated by means of a tilt cylinder 13 tiltable tool carrier 12 with a replaceable tool, here a stacker fork 14 is provided, with a forked one on the stacker fork 14 Last 15 is indicated.
  • the telescopic arm that can be extended up to approx. 10 meters 7 extends next to a driver's cab 17 and can by a or two arm cylinders 16 vertically up to a very steep course of maximum can be adjusted approx. 70 °.
  • the transverse displacement takes place
  • Linkage of the front axle 3 to the vehicle frame 4 by means of parallel core 24, which in the illustrated embodiments one end by means of vertical bolts 27, 28 on the vehicle frame 4 and at the other end by means of vertical bolts 29, 30 on one the front axle 3 receiving axle beams 40, 45 are articulated and in their basic position form the extension of the outer wall of the vehicle frame 4.
  • a hydraulic actuating cylinder as a pivot actuating means 26 26 provided diagonally in the by the parallel link 24, the Vehicle frame 4 and the front axle 3 given rectangle and is hinged to the bolts 27, 30.
  • the arrangement of the actuating cylinder 26 is however, not limited to the diagonal articulation shown, but other arrangements are also possible.
  • angle ⁇ becomes between the vehicle longitudinal center axis 20 the basic position of the implement 1 (see FIG. 2) and the vehicle longitudinal center axis 21 of the implement 1 in the pivoted state (see FIG. 3).
  • the vehicle's longitudinal center axis lies 21 due to the transverse displacement of the front axle 3 next to the center of the front axle 3, but is still vertical to the front axle 3, since there is a transverse displacement of the front axle 3 according to the invention is a circular shift, i.e. by one Parallel displacement at which a given point on the front axle 3 describes a beisbahn, the center of which on one of the articulation points 27, 28 of the parallel link 24 on the straight line connecting the vehicle frame 4 lies.
  • Figure 3 shows in addition to the indicated by the pivoting of the vehicle frame 4 given vehicle longitudinal central axis 21 also a vehicle longitudinal central axis 22, the pivoting of the vehicle frame 4th by the angle ⁇ in the opposite direction by extending the Actuating cylinder 26 corresponds to the basic position of Figure 2.
  • the wheels roll by pivoting the Vehicle frame slightly on the ground.
  • the invention is not limited to use in a telehandler, but is also suitable for use in other work equipment.
  • the swivel angle ⁇ can also be greater than 5 ° to get voted. This can be done, for example, by adjusting the length the stroke of the actuating cylinder in relation to the length of the parallel link take place because with longer parallel core even with smaller deflections same pivot angle can be achieved.
  • the use of longer parallel links has an advantageous effect in that a larger swivel angle can be reached with low transverse forces acting on the vehicle frame are.

Abstract

The second axle (3) is arranged on the vehicle frame (4) by means of parallel link bars (24), pivotable around vertical axes by pivot operation devices (26). The parallel link bars are linked at one end to the vehicle frame (4) and at the other end to an axle bearer (40) in which the second axle (3) is rigidly screwed. In the axle bearer the second axle can be positioned centrally and rotatably located around a longitudinal axis of the work apparatus.

Description

Die Erfindung betrifft ein auf Rädern fahrbares querbewegliches Arbeitsgerät mit einer an einem starren Fahrzeugrahmen befestigten ersten Achse. Derartige Geräte sind beispielsweise Teleskopstapler mit einem teleskopisch ausfahrbaren und aufwärts schwenkbaren Mast, an dem eine normalerweise angebrachte Staplergabel durch andere Werkzeuge wie Leichtgutschaufeln, Kranhaken, Klammern usw. ausgewechselt werden kann.The invention relates to a transversely movable implement that can be driven on wheels with a first axle attached to a rigid vehicle frame. Such devices are, for example, telehandlers with a telescopic extendable and upward swiveling mast, on which one normally attached fork with other tools such as light material shovels, Crane hooks, clamps, etc. can be replaced.

Teleskopstapler werden eingesetzt, um eine Last aufzunehmen und mit Hilfe des aufwendigen Reifenfahrwerks an einen anderen Ort zu transportieren. Andererseits arbeiten diese Geräte quasi stationär, wenn die beträchtliche Reichweite und -höhe ihres Teleskoparmes ausgenutzt wird, um beispielsweise ein Ladegut in 10 Meter Höhe an eine Baustelle zu bringen und dort an genau bestimmter Stelle abzusetzen. In diesen Fällen muß das Gerät abgestützt und auf unebenem Gelände quer zur Fahrzeuglängsachse horizontiert werden, damit der steil stellbare Teleskopmast einschließlich seiner Last etwa in der die Fahrzeuglängsachse enthaltenden senkrechten Ebene verbleibt. Obwohl eine das Arbeitsgerät bedienende Person schnell Übung darin entwickelt, das Lade- oder Entladeziel genau anzufahren und die erforderliche Abstützung vorzunehmen, verbleibt als schwierigere Vorgabe, eine Last in der bei ausgefahrenem Teleskopmast gegebenen erheblichen Entfernung um ungefähr ± 0,5 m seitlich zu bewegen, um sie beispielsweise an einem Hochbau in eine seitlich begrenzte Öffnung einzufahren.Telescopic handlers are used to pick up a load and with the help to transport the complex tire chassis to another location. On the other hand, these devices work almost stationary, if the considerable Range and height of your telescopic arm is used, for example to bring a load to a construction site at a height of 10 meters and there to drop off at a specific point. In these cases, the device must be supported and leveled across uneven terrain across the vehicle's longitudinal axis so that the steeply adjustable telescopic mast including its Load approximately in the vertical plane containing the vehicle's longitudinal axis remains. Although a person operating the implement quickly exercises developed to approach the loading or unloading target precisely and the required Support remains as a more difficult requirement, a load in the considerable given when the telescopic mast is extended Move the distance laterally by approximately ± 0.5 m, for example to enter a side opening in a building.

Um diese Querbewegung der Last zu bewerkstelligen, ist es bekannt, als Gabelträger einen hydraulisch betätigten Querschlitten vorzusehen, dessen Führungen am Teleskopmastende angebracht sind. Aufgrund des Gewichts von Querschlitten, Führungen und Antriebsmitteln verringert sich jedoch die Nutzlast, was sich vor allem bei Teleskophüben von bis zu 10 Metern in nachteiliger Weise einschränkend bemerkbar macht.To accomplish this transverse movement of the load, it is known as Fork carrier to provide a hydraulically operated cross slide, the Guides are attached to the telescopic mast end. Because of the weight of cross slides, guides and drive means, however, is reduced Payload, which is particularly evident in telescopic hoists of up to 10 meters disadvantageously restrictive noticeable.

Um ein Schwerlast-Transportfahrzeug unter beengten Verhältnissen ohne Vor- und Rückwärtsfahrt auf der Stelle seitwärts zu schwenken, ist aus der DE 23 60 825 C2 eine vom Ende des Fahrzeugrahmens absenkbare Abstützeinrichtung bekannt, die am Fahrzeugrahmen feste senkrechte Hubstempel und eine sich auf das Fahrplanum auflegenden, entsprechend dem beabsichtigten Schwerkradius gekrümmten Balken aufweist. Da der mit den Hubstempeln fest verbundene Oberteil des in Längsrichtung geteilten Balkens auf dem Unterteil verschiebbar gelagert ist und beide Balkenteile motorisch relativ zueinander bewegbar sind, läßt sich das Fahrzeug an seinem durch die Abstützeinrichtung angehobenen Ende in einem etwa durch die Balkenlänge vorgegebenen Winkel seitwärts schwenken.To a heavy duty transport vehicle in cramped conditions without Swinging forwards and backwards sideways on the spot is out of the DE 23 60 825 C2 a support device which can be lowered from the end of the vehicle frame known, the vertical lifting stamp fixed to the vehicle frame and one laying on the timetable according to the intended one Gravity radius has curved beams. Because the one with the jacks firmly connected upper part of the bar divided in the longitudinal direction is slidably mounted on the lower part and both beam parts are motorized are movable relative to one another, the vehicle can be moved through on it the support device raised end in approximately the length of the beam Swivel the specified angle sideways.

Aus der US-PS 4 923 361 ist eine Querbewegungseinrichtung für einen Gabelstapler bekannt, dessen Fahrzeugrahmen über ein rückwärtiges Lenkradpaar sowie über zwei auf Starrachsen gelagerte Vorderräder abgestützt ist. An der Unterseite zweier sich nach vom bis über die Vorderräder erstreckender Gabelzinken befinden sich um in Zinkenrichtung verlaufende Achsen schwenkbare Stützbeine, deren freies Ende eine gelenkig gelagerte Fußplatte trägt. Bei angehobener Staplergabel wird zur Durchführung einer Querbewegung von jedem Gabelzinken ein Stützbein durch Pedalbetätigung in eine durch einen Anschlag bestimmte Endstellung abgeklappt, in der seine Erstreckungsrichtung mit der Senkrechten einen spitzen Winkel bildet. Wenn durch kraftbetätigtes Absenken der Staplergabel die schrägstehenden Stützbeine mit ihren Fußplatten in Bodenkontakt kommen, verlieren die dadurch teilweise entlasteten Vorderräder ihre Bodenhaftung und führen zusammen mit dem vorderen Ende des Fahrzeugrahmens eine begrenzte Querbewegung aus, bis mit zunehmender Schrägstellung der sich in Richtung ihrer eingeklappten waagerechten Ruhestellung bewegenden Stützbeine der Reibschluß der Fußplatten mit dem Boden endet. Um Querbewegungen in entgegengesetzten Richtungen auszuführen, sind an beiden Gabelzinken jeweils zwei entgegengesetzt schrägstellbare Stützbeine vorgesehen, von denen je nach beabsichtigter Bewegungsrichtung ein Stützbein durch Pedalbetätigung abgeklappt wird.From US-PS 4 923 361 is a transverse movement device for a forklift known, the vehicle frame via a rear steering wheel pair and supported by two front wheels mounted on rigid axles is. On the underside of two that extend from to over the front wheels Forks are located around the tines Axle swiveling support legs, the free end of which is articulated Footplate carries. When the fork is raised, a Cross movement of each fork tine a support leg by pedal operation folded into an end position determined by a stop, in which its Extension direction forms an acute angle with the vertical. If the inclined ones are caused by the power-operated lowering of the fork Support legs with their foot plates come into contact with the floor, they lose it in some cases, front wheels relieve their grip and bring them together limited transverse movement with the front end of the vehicle frame off until the angle of inclination increases towards her retracted horizontal rest moving legs of the Friction between the footplates and the floor ends. To cross movements in Execute opposite directions on both forks two oppositely inclined support legs are provided, one of which Depending on the intended direction of movement, a support leg by pedaling is folded down.

Ausgehend hiervon liegt der Erfindung die Aufgabe zugrunde, ein auf Rädern fahrbares querbewegliches Arbeitsgerät der vorstehend benannten Art mit vereinfachter Einrichtung zur Querbewegung des Arbeitsgeräts bereitzustellen.Proceeding from this, the invention is based on the object of being on wheels Mobile transverse moving implement of the type mentioned above to provide with a simplified device for transverse movement of the implement.

Zur Lösung dieser Aufgabe wird ein auf Rädern fahrbares querbewegliches Arbeitsgerät mit den Merkmalen des Anspruchs 1 vorgeschlagen. Erfindungsgemäß wird demnach die zweite Achse des Arbeitsgeräts derart an dein Fahrzeugrahmen querverschieblich angeordnet, daß sie in Bezug auf den Fahrzeugrahmen gesehen eine Kreisschiebung ausführen kann. Durch diese Maßnahme wird eine Querbeweglichkeit des Arbeitsgerätes ohne zusätzliche Abstützeinrichtungen zur Anhebung der Vorderachse gewährleistet. Im normalen Betrieb des Arbeitsgerätes sind beide Achsen des Arbeitsgerätes bezüglich der durch den starren Fahrzeugrahmen vorgegebenen Fahrzeuglängsachse mittig zueinander ausgerichtet. Bei Bedarf erfolgt eine Querverschiebung der verschieblich angeordneten zweiten Achse entlang einer Kreisschiebungsbahn, d.h. die beiden Achsen des Arbeitsgerätes sind stets parallel zueinander ausgerichtet, jedoch verlagert sich der Mittelpunkt der beweglich angeordneten Achse bezüglich der Fahrzeugmittelachse und der Abstand der beiden Achsen verringert sich. Da jedoch bei der Querverschiebung der beweglich angeordneten zweiten Achse das Arbeitsgerät mit sämtlichen an den Achsen angebrachten Rädern fest auf dem Untergrund steht, ist mit der Querverschiebung der beweglich angeordneten zweiten Achse eine Querbewegung des Arbeitsgeräts um einen kleinen Winkel von bis zu 5° verbunden. Erfindungsgemäß sind somit zur Querbewegung des Arbeitsgeräts keine zusätzlichen Abstützeinrichtungen zum Anheben der Vorderachse und Verschieben des Fahrzeugs mehr notwendig. Vielmehr wird die Funktion der Abstützeinrichtung erfindungsgemäß durch die querverschieblich angeordnete zweite Achse übernommen. Ein wesentlicher Vorteil des vorgeschlagenen Arbeitsgerätes liegt darin, daß die Querverschiebung nicht mehr nur bei einer angehobenen Achse (und somit festgelegtem Arbeitsgerät) erfolgen kann, sondern nunmehr auch im rollenden Zustand des Arbeitsgeräts möglich ist.To solve this problem, a wheeled mobile is Tool proposed with the features of claim 1. According to the invention accordingly, the second axis of the implement is on your vehicle frame is slidably arranged with respect to seen the vehicle frame can perform a circular shift. By this measure is a transverse mobility of the implement without additional Support devices for lifting the front axle guaranteed. In normal operation of the implement, both axes of the implement are with respect to those specified by the rigid vehicle frame Longitudinal vehicle axis aligned to each other. If necessary, a Transverse displacement along the second axis, which is arranged to be displaceable a circular slide path, i.e. the two axes of the implement are always aligned parallel to each other, but the center shifts the movably arranged axis with respect to the vehicle center axis and the distance between the two axes is reduced. However, because of the transverse shift the working device with the movably arranged second axis all wheels attached to the axles firmly on the ground stands, is with the transverse displacement of the movably arranged second Axis a transverse movement of the implement through a small angle of connected up to 5 °. According to the invention are thus for transverse movement of the Work tools no additional support devices for lifting the Front axle and moving the vehicle more necessary. Much more the function of the support device according to the invention is displaceable by the arranged second axis adopted. An essential one The advantage of the proposed implement is that the transverse displacement no longer only with a raised axis (and thus fixed Tool) can now take place, but now also in a rolling state of the implement is possible.

In Ausgestaltung der Erfindung ist die zweite Achse mittels Parallellenkern an dem Fahrzeugrahmen angeordnet. Vorteilhafterweise sind die Parallellenker mittels eines zugeordneten Schwenkbetätigungsmittels um Vertikalachsen schwenkbar.In an embodiment of the invention, the second axis is by means of a parallel core arranged on the vehicle frame. The parallel links are advantageous by means of an associated pivot actuating means about vertical axes swiveling.

In weiterer Ausgestaltung der Erfindung sind die einenends an dem Fahrzeugrahmen angelenkten Parallellenker anderenends an einem Achsträger angelenkt, in welchem die zweite Achse starr verschraubt angeordnet ist. Diese erfindungsgemäße Ausgestaltung gewährleistet eine besonders stabile Anordnung der zweiten Achse an dem starren Fahrzeugrahmen.In a further embodiment of the invention, the ends of the vehicle frame articulated parallel linkage articulated at the other end on an axle beam, in which the second axis is rigidly screwed. This Design according to the invention ensures a particularly stable arrangement the second axis on the rigid vehicle frame.

In anderer Ausgestaltung der Erfindung sind die einenends an dem Fahrzeugrahmen angelenkten Parallellenker anderenends an einem Achsträger angelenkt, in welchem die zweite Achse mittig und um eine Längsachse des Arbeitsgeräts drehbar gelagert ist. Durch diese Ausgestaltung des erfindungsgemäßen Arbeitsgeräts ist die zweite Achse zu einem Querneigungsausgleich des Arbeitsgeräts in an sich bekannter Weise verstellbar. Vorteilhafterweise erfolgt die Drehbetätigung der zweiten Achse zum Querneigungsausgleich mittels eines Hydraulikzylinders.In another embodiment of the invention, the ends are on the vehicle frame articulated parallel linkage articulated at the other end on an axle beam, in which the second axis is centered and about a longitudinal axis of the implement is rotatably mounted. This configuration of the invention Implement is the second axis for cross-slope compensation of the implement adjustable in a conventional manner. Advantageously the second axis is turned to compensate for the bank by means of a hydraulic cylinder.

Die Erfindung ist anhand von Ausführungsbeispielen in der Zeichnung schematisch dargestellt und wird im folgenden unter Bezugnahme auf die Zeichnung näher erläutert.

Figur 1
zeigt als erstes Ausführungsbeispiel eines erfindungsgemäßen Ar-beitsgeräts einen Teleskopstapler mit aufgenommener Last in Seitenansicht mit querverschiebbarer und mittig drehbar gelagerter Vorderachse.
Figur 2
zeigt eine Draufsicht auf das Fahrgestell eines zweiten Ausführungsbeispieles eines erfindungsgemäßen Arbeitsgeräts mit starr verschraubter querverschiebbarer Vorderachse in Grundstellung.
Figur 3
zeigt das Fahrgestell der Figur 2 in Draufsicht mit seitlich verschwenktem Fahrzeugrahmen.
Figur 4
zeigt eine Vorderansicht des Fahrgestells des Teleskopstaplers der Figur 1 aufgeneigtem Untergrund.
The invention is shown schematically in the drawing using exemplary embodiments and is explained in more detail below with reference to the drawing.
Figure 1
shows as a first embodiment of a working device according to the invention a telescopic forklift with a loaded load in side view with cross-displaceable and centrally rotatably mounted front axle.
Figure 2
shows a plan view of the chassis of a second embodiment of an implement according to the invention with rigidly screwed cross-displaceable front axle in the basic position.
Figure 3
shows the chassis of Figure 2 in plan view with the vehicle frame pivoted sideways.
Figure 4
shows a front view of the chassis of the telehandler of Figure 1 inclined underground.

Figur 1 zeigt als erfindungsgemäßes Arbeitsgerät 1 einen auf Rädern fahrbaren Teleskopstapler mit einem starren Fahrzeugrahmen 4. An dem Fahrzeugrahmen 4 ist als erste Achse 2 eine pendelnd aufgehängte Hinterachse 2 befestigt (Achspendellagerung 18) sowie als zweite Achse 3 eine Vorderachse 3 querverschieblich zur Beschreibung einer Kreisschiebung angeordnet. Die genaue Funktionsweise der erfindungsgemäß angeordneten Vorderachse 3 wird nachstehend unter Bezugnahme auf die Figuren 2 und 3 ausführlich erläutert.Figure 1 shows as a working device 1 according to the invention a wheeled Telescopic handler with a rigid vehicle frame 4. On the vehicle frame 4, a pendulum-suspended rear axle 2 is fastened as the first axle 2 (Axle pivot bearing 18) and as a second axis 3 a front axle 3 arranged transversely to describe a circular shift. The exact functioning of the front axle 3 arranged according to the invention is explained in detail below with reference to FIGS. 2 and 3.

Der Teleskopstapler verfügt des weiteren über einen von dem Fahrzeugrahmen 4 getragenen Fahrzeugaufbau 5, zu dem ein rückwärtiges Gegengewicht 6 und ein Teleskoparm 7 gehören. Der Teleskoparm 7 hat am Fahrzeugaufbau eine waagerechte Lagerachse 8 und verfügt über einen ersten Ausschub 9 und wahlweise einen zweiten Ausschub 10 sowie eine Ausschubnase 11. An der Ausschubnase 11 ist ein mittels eines Kippzylinders 13 betätigbarer kippbarer Werkzeugträger 12 mit einem auswechselbaren Werkzeug, hier einer Staplergabel 14, vorgesehen, wobei auf der Staplergabel 14 eine aufgenommene Last 15 angedeutet ist. Der bis ca. 10 Meter ausfahrbare Teleskoparm 7 erstreckt sich neben einer Fahrerkabine 17 und kann durch ein oder zwei Armzylinder 16 vertikal bis in einen sehr steilen Verlauf von maximal ca. 70° verstellt werden.The telehandler also has one of the vehicle frames 4 carried vehicle body 5, to which a rear counterweight 6 and a telescopic arm 7 belong. The telescopic arm 7 has on the vehicle body a horizontal bearing axis 8 and has a first extension 9 and optionally a second extension 10 and an extension nose 11. On the push-out nose 11 can be actuated by means of a tilt cylinder 13 tiltable tool carrier 12 with a replaceable tool, here a stacker fork 14 is provided, with a forked one on the stacker fork 14 Last 15 is indicated. The telescopic arm that can be extended up to approx. 10 meters 7 extends next to a driver's cab 17 and can by a or two arm cylinders 16 vertically up to a very steep course of maximum can be adjusted approx. 70 °.

Wie aus der Draufsicht der Figuren 2 und 3 erkennbar ist, erfolgt die querverschiebliche Anlenkung der Vorderachse 3 an dem Fahrzeugrahmen 4 mittels Parallellenkern 24, die in den dargestellten Ausführungsbeispielen einenends mittels vertikalen Bolzen 27, 28 an dem Fahrzeugrahmen 4 und anderenends mittels vertikalen Bolzen 29, 30 an einem die Vorderachse 3 aufnehmenden Achsträger 40, 45 angelenkt sind und in ihrer Grundstellung die Verlängerung der Außenwandung des Fahrzeugrahmens 4 bilden.As can be seen from the top view of FIGS. 2 and 3, the transverse displacement takes place Linkage of the front axle 3 to the vehicle frame 4 by means of parallel core 24, which in the illustrated embodiments one end by means of vertical bolts 27, 28 on the vehicle frame 4 and at the other end by means of vertical bolts 29, 30 on one the front axle 3 receiving axle beams 40, 45 are articulated and in their basic position form the extension of the outer wall of the vehicle frame 4.

Bei dem in den Figuren 2 und 3 dargestellten Ausführungsbeispiel ist die Vorderachse 3 in dem Achsträger 40 mittels Schrauben 41 starr verschraubt, während in dem Ausführungsbeispiel der Figuren 1 und 4 die Vorderachse 3 in dem Achsträger 45 mittig und um eine Längsachse des Arbeitsgeräts 1 drehbar gelagert ist.In the embodiment shown in Figures 2 and 3 is the Front axle 3 rigidly screwed in the axle support 40 by means of screws 41, while in the exemplary embodiment in FIGS. 1 and 4 the front axle 3 in the axle support 45 in the center and about a longitudinal axis of the implement 1 is rotatably mounted.

Zur Betätigung der Parallellenker 24 und somit zur Querbewegung des Arbeitsgerätes 1 ist als Schwenkbetätigungmittel 26 ein hydraulischer Stellzylinder 26 vorgesehen, der diagonal in dem durch die Parallellenker 24, den Fahrzeugrahmen 4 und die Vorderachse 3 gegebenen Rechteck verläuft und an den Bolzen 27, 30 angelenkt ist. Die Anordnung des Stellzylinders 26 ist jedoch nicht auf die dargestellte diagonale Anlenkung beschränkt, sondern es sind auch andere Anordnungen möglich. To actuate the parallel link 24 and thus to move the implement transversely 1 is a hydraulic actuating cylinder as a pivot actuating means 26 26 provided diagonally in the by the parallel link 24, the Vehicle frame 4 and the front axle 3 given rectangle and is hinged to the bolts 27, 30. The arrangement of the actuating cylinder 26 is however, not limited to the diagonal articulation shown, but other arrangements are also possible.

Bei einer Betätigung des Stellzylinders 26 im Sinne einer Verkürzung, wie dies in den Figuren 2 und 3 dargestellt ist, erfolgt durch ein Verschwenken der Parallellenker 24 eine Querverschiebung der Vorderachse 3 im Sinne einer Kreisschiebung in Fahrerblickrichtung nach links. Entsprechend ist mit einer Betätigung des Stellzylinders 26 im Sinne einer Verlängerung eine Querverschiebung der Vorderachse 3 in Fahrerblickrichtung nach rechts verbunden.When actuating the actuating cylinder 26 in the sense of a shortening, such as this is shown in Figures 2 and 3, is done by pivoting the parallel link 24 a transverse displacement of the front axle 3 in the sense a circle shift in the driver's eye direction to the left. Accordingly, with an actuation of the actuating cylinder 26 in the sense of an extension Transverse shift of the front axle 3 in the driver's eye direction to the right connected.

Da das Arbeitsgerät 1 mit den Rädern 20 der Hinterachse und den Rädern 21 der Vorderachse 3 fest auf dem Untergrund aufsteht, bewirkt die Querverschiebung der Vorderachse 3 ein Verschwenken des Fahrzeugrahmens 4 bezüglich der Auflagepunkte der Räder 20, 21. Die Verschwenkung des Fahrzeugrahmens 4 erfolgt dabei um einen Winkel α, der bei dem dargestellten Ausführungsbeispiels eines Teleskopstaplers bis ca. 5° beträgt. Der Winkel α wird, wie aus Figur 3 ersichtlich, zwischen der Fahrzeuglängsmittelachse 20 der Grundstellung des Arbeitsgeräts 1 (vgl. Figur 2) und der Fahrzeuglängsmittelachse 21 des Arbeitsgeräts 1 in verschwenktem Zustand (vgl. Figur 3) gemessen. Während in der Grundstellung des Arbeitsgeräts 1 die Fahrzeuglängsmittelachse 20 durch den Mittelpunkt der Hinterachse 2 sowie den Mittelpunkt der Vorderachse 3 verläuft, liegt die Fahrzeuglängsmittelachse 21 aufgrund der Querverschiebung der Vorderachse 3 neben dem Mittelpunkt der Vorderachse 3, steht jedoch nach wie vor senkrecht zur Vorderachse 3, da es sich bei der Querverschiebung der Vorderachse 3 erfindungsgemäß um eine Kreisschiebung handelt, d.h. um eine Parallelverschiebung, bei welcher ein gegebener Punkt der Vorderachse 3 eine beisbahn beschreibt, deren Mittelpunkt auf einer die Anlenkpunkte 27, 28 der Parallellenker 24 an dem Fahrzeugrahmen 4 verbindenden Gerade liegt.Since the implement 1 with the wheels 20 of the rear axle and the wheels 21 of the front axle 3 stands firmly on the ground, causes the transverse displacement the front axle 3 a pivoting of the vehicle frame 4th with respect to the contact points of the wheels 20, 21. The pivoting of the Vehicle frame 4 takes place by an angle α, which in the illustrated Embodiment of a telehandler is up to about 5 °. Of the As can be seen from FIG. 3, angle α becomes between the vehicle longitudinal center axis 20 the basic position of the implement 1 (see FIG. 2) and the vehicle longitudinal center axis 21 of the implement 1 in the pivoted state (see FIG. 3). While in the basic position of the implement 1 the vehicle longitudinal center axis 20 through the center of the rear axle 2 and the center of the front axle 3, the vehicle's longitudinal center axis lies 21 due to the transverse displacement of the front axle 3 next to the center of the front axle 3, but is still vertical to the front axle 3, since there is a transverse displacement of the front axle 3 according to the invention is a circular shift, i.e. by one Parallel displacement at which a given point on the front axle 3 describes a beisbahn, the center of which on one of the articulation points 27, 28 of the parallel link 24 on the straight line connecting the vehicle frame 4 lies.

Figur 3 zeigt neben der durch die eingezeichnete Verschwenkung des Fahrzeugrahmens 4 gegebenen Fahrzeugslängsmittelachse 21 auch eine Fahrzeuglängsmittelachse 22, die einer Verschwenkung des Fährzeugrahmens 4 um den Winkel α in die entgegengesetzte Richtung durch Verlängerung des Stellzylinders 26 aus der Grundstellung der Figur 2 entspricht.Figure 3 shows in addition to the indicated by the pivoting of the vehicle frame 4 given vehicle longitudinal central axis 21 also a vehicle longitudinal central axis 22, the pivoting of the vehicle frame 4th by the angle α in the opposite direction by extending the Actuating cylinder 26 corresponds to the basic position of Figure 2.

Wie in Figur 3 angedeutet, rollen die Räder durch die Verschwenkung des Fahrzeugrahmens geringfügig auf dem Untergrund.As indicated in Figure 3, the wheels roll by pivoting the Vehicle frame slightly on the ground.

Bei dem in den Figuren 1 und 4 dargestellten Ausführungsbeispiel ist die Vorderachse 3 in dem Achsträger 45 mittig und um eine Längsachse des Arbeitsgeräts 1 drehbar gelagert, d.h. pendelnd angeordnet. Dazu nimmt der Achsträger 45 die Vorderachse 3 mittels Lagerzapfen 42 auf. Mittels eines zwischen dem Achsträger 45 und der Vorderachse 3 angelenkten Hydraulikzylinders 46 kann somit ein an sich bekannter Querneigungsausgleich der Vorderachse 3 erfolgen, wenn das Arbeitsgerät 1 auf einem zur Lotrechten geneigten Untergrund 19 steht.In the embodiment shown in Figures 1 and 4 is the Front axis 3 in the axle support 45 in the center and around a longitudinal axis of the implement 1 rotatably mounted, i.e. arranged swinging. To do this, the Axle carrier 45 on the front axle 3 by means of journal 42. By means of a between the axle carrier 45 and the front axle 3 articulated hydraulic cylinder 46 can thus be a known cross-slope compensation Front axle 3 take place when the implement 1 is on a perpendicular inclined surface 19 stands.

Die Erfindung beschränkt sich nicht auf die Verwendung in einem Teleskopstapler, sondern eignet sich auch zum Einsatz in anderen Arbeitsgeräten. Je nach Anwendung kann der Verschwenkwinkel α auch größer als 5° gewählt werden. Dies kann beispielsweise durch eine Abstimmung der Länge des Hubwegs des Stellzylinders in Bezug auf die Länge der Parallellenker erfolgen, da bei längeren Parallellenkern bereits bei kleineren Auslenkungen gleiche Verschwenkwinkel erreicht werden. Die Verwendung längerer Parallellenker wirkt sich insofern vorteilhaft aus, als größere Verschwenkwinkel mit geringen an dem Fahrzeugrahmen angreifenden Querkräften erreichbar sind.The invention is not limited to use in a telehandler, but is also suitable for use in other work equipment. Depending on the application, the swivel angle α can also be greater than 5 ° to get voted. This can be done, for example, by adjusting the length the stroke of the actuating cylinder in relation to the length of the parallel link take place because with longer parallel core even with smaller deflections same pivot angle can be achieved. The use of longer parallel links has an advantageous effect in that a larger swivel angle can be reached with low transverse forces acting on the vehicle frame are.

Claims (5)

Auf Rädern fahrbares querbewegliches Arbeitsgerät, insbesondere Teleskopstapler, mit einer an einem starren Fahrzeugrahmen (4) befestigten ersten Achse (2), gekennzeichnet durch eine an dem Fahrzeugrahmen (4) querverschieblich zur Beschreibung einer Kreisschiebung angeordneten zweiten Achse (3).Wheeled traversable implement, in particular Telescopic stacker, with one attached to a rigid vehicle frame (4) first axle (2), characterized by a on the vehicle frame (4) arranged transversely to describe a circular shift second axis (3). Arbeitsgerät nach Anspruch 1, dadurch gekennzeichnet, daß die zweite Achse (3) mittels Parallellenker (24) an dem Fahrzeugrahmen (4) angeordnet ist.Tool according to claim 1, characterized in that the second axle (3) is arranged on the vehicle frame (4) by means of parallel links (24) is. Arbeitsgerät nach Anspruch 2, dadurch gekennzeichnet, daß die Parallellenker (24) mittels eines zugeordneten Schwenkbetätigungsmittels (26) um Vertikalachsen schwenkbar sind.Tool according to claim 2, characterized in that the parallel link (24) by means of an associated swivel actuating means (26) are pivotable about vertical axes. Arbeitsgerät nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die einenends an dem Fahrzeugrahmen (4) angelenkten Parallellenker (24) anderenends an einem Achsträger (40) angelenkt sind, in welchem die zweite Achse (3) starr verschraubt angeordnet ist.Tool according to one of claims 1 to 3, characterized in that that the parallel links articulated at one end to the vehicle frame (4) (24) are articulated at the other end to an axle support (40), in which the second axis (3) is arranged rigidly screwed. Arbeitsgerät nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die einenends an dem Fahrzeugrahmen (4) angelenkten Parallellenker (24) anderenends an einem Achsträger (45) angelenkt sind in welchem die zweite Achse (3) mittig und um eine Längsachse des Arbeitsgeräts (1) drehbar gelagert ist.Tool according to one of claims 1 to 3, characterized in that that the parallel links articulated at one end to the vehicle frame (4) (24) are articulated at the other end to an axle support (45) in which the second axis (3) in the center and around a longitudinal axis of the implement (1) is rotatably mounted.
EP19970119266 1997-11-04 1997-11-04 Transversely movable working apparatus on wheels Expired - Lifetime EP0927698B1 (en)

Priority Applications (2)

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EP19970119266 EP0927698B1 (en) 1997-11-04 1997-11-04 Transversely movable working apparatus on wheels
DE59707518T DE59707518D1 (en) 1997-11-04 1997-11-04 Transversely movable implement that can be moved on wheels

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP19970119266 EP0927698B1 (en) 1997-11-04 1997-11-04 Transversely movable working apparatus on wheels

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EP0927698A1 true EP0927698A1 (en) 1999-07-07
EP0927698B1 EP0927698B1 (en) 2002-06-12

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Cited By (2)

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FR2788759A1 (en) * 1999-01-27 2000-07-28 Sambron DEVICE FOR CONTROLLING THE MOVEMENT OF A CARRIER STRUCTURE OF A ROLLING MACHINE AND A ROLLING MACHINE INCORPORATING THE SAME
ITMO20100061A1 (en) * 2010-03-10 2011-09-11 C M C S R L Societa Unipersonal E SELF PROPELLED MACHINE WITH INTEGRATED LATERAL DISPLACEMENT, LEVELING AND ANTI-TILTING DEVICE

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GB2121363A (en) * 1982-06-03 1983-12-21 Merlo Ind Metalmecc Wheeled vehicle with chassis movable relative to one of the axles
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EP0228208A1 (en) * 1985-12-27 1987-07-08 Kidde, Inc. Forklift variable reach mechanism
US4923361A (en) 1988-05-02 1990-05-08 Skf Nova Ab Device for moving at least a part of a vehicle in a sideward direction
EP0701963A1 (en) * 1994-09-14 1996-03-20 Manitou Bf Motorised lift truck with telescopic arm

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2360825A1 (en) 1973-12-06 1975-06-19 Lorenz Kesting METHOD AND DEVICE FOR MANIPULATING TRANSPORT VEHICLES FOR IN PARTICULAR MONOLITHIC REINFORCED CONCRETE ROOM CELLS
US4039094A (en) * 1975-12-23 1977-08-02 Fulton Industries, Inc. Aerial lift platform with extendable wheels
US4082197A (en) * 1976-10-12 1978-04-04 Caterpillar Tractor Co. Articulated high lift vehicle
US4135597A (en) * 1977-12-29 1979-01-23 Allis-Chalmers Corporation Chassis oscillation control on an articulated vehicle
GB2121363A (en) * 1982-06-03 1983-12-21 Merlo Ind Metalmecc Wheeled vehicle with chassis movable relative to one of the axles
FR2573278A1 (en) * 1984-11-20 1986-05-23 Fontan Sarl Ets Self-propelled between-row tool holder with a trapezoidal coupler articulated on the tool holder on the one hand and on a module, particularly a grape harvester, on the other hand
EP0228208A1 (en) * 1985-12-27 1987-07-08 Kidde, Inc. Forklift variable reach mechanism
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EP0701963A1 (en) * 1994-09-14 1996-03-20 Manitou Bf Motorised lift truck with telescopic arm

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2788759A1 (en) * 1999-01-27 2000-07-28 Sambron DEVICE FOR CONTROLLING THE MOVEMENT OF A CARRIER STRUCTURE OF A ROLLING MACHINE AND A ROLLING MACHINE INCORPORATING THE SAME
EP1024108A1 (en) 1999-01-27 2000-08-02 Sambron Device for the transposition-control of a carrying structure of a vehicule
ITMO20100061A1 (en) * 2010-03-10 2011-09-11 C M C S R L Societa Unipersonal E SELF PROPELLED MACHINE WITH INTEGRATED LATERAL DISPLACEMENT, LEVELING AND ANTI-TILTING DEVICE
WO2011110906A1 (en) * 2010-03-10 2011-09-15 C.M.C. S.R.L. - Società Unipersonale Self -moving operating machine with integrated lateral movement and leveling device

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EP0927698B1 (en) 2002-06-12
DE59707518D1 (en) 2002-07-18

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