EP1541520B2 - mobile crane - Google Patents

mobile crane Download PDF

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Publication number
EP1541520B2
EP1541520B2 EP04022087.3A EP04022087A EP1541520B2 EP 1541520 B2 EP1541520 B2 EP 1541520B2 EP 04022087 A EP04022087 A EP 04022087A EP 1541520 B2 EP1541520 B2 EP 1541520B2
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EP
European Patent Office
Prior art keywords
vehicle
supports
crane
mobile crane
accordance
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP04022087.3A
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German (de)
French (fr)
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EP1541520B1 (en
EP1541520A1 (en
Inventor
Hans-Dieter Willim
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.)
Liebherr Werk Ehingen GmbH
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Liebherr Werk Ehingen GmbH
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Priority claimed from DE20319660U external-priority patent/DE20319660U1/en
Application filed by Liebherr Werk Ehingen GmbH filed Critical Liebherr Werk Ehingen GmbH
Publication of EP1541520A1 publication Critical patent/EP1541520A1/en
Publication of EP1541520B1 publication Critical patent/EP1541520B1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
    • B66C23/62—Constructional features or details
    • B66C23/72—Counterweights or supports for balancing lifting couples
    • B66C23/78—Supports, e.g. outriggers, for mobile cranes
    • B66C23/80—Supports, e.g. outriggers, for mobile cranes hydraulically actuated
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
    • B66C23/62—Constructional features or details

Definitions

  • the invention relates to a vehicle crane consisting of a vehicle with chassis and attached supports, which can be moved from a folded transport position into a deployed working position, a revolving stage and a buildable on the revolving crane structure.
  • a crane will be in the DE-U-94 12 217 and the DE-A-2 017 058 disclosed.
  • a vehicle crane While usually a vehicle crane consists of a vehicle with fixed rotating platform and built on the turntable telescopic boom, it is already known in large vehicle cranes, which are designed as a lattice or telescopic crane to separate the lattice or Telekranteil from the rest of the vehicle to be able to meet the maximum axle loads of 12 t during transport. Only at the construction site in use, the grid or Telekranteil, which is transported separately to the place of use, mounted. Such previously known large vehicle cranes therefore consist of a vehicle with attached supports that can be moved from a folded transport position to a deployed working position and a revolving stage.
  • the object of the invention is to increase the crane size, taking into account the maximum axle load of 12 t and the legally permissible total height even further.
  • a vehicle crane with the combination of the features of claim 1.
  • a vehicle crane which consists of a vehicle with chassis and attached supports that are movable from a folded transport position into a deployed working position, a revolving stage and a buildable on the revolving crane structure, the chassis with supports designed such that this maximum permissible height in the transport state, for example, the permissible height of 4m, fully exploit.
  • a larger support base can be selected, whereby the crane can lift very high loads with comparatively low ballast.
  • This reduction of the necessary ballast leads to great advantages, especially in rapidly changing locations.
  • the weight of the ballast to be transported can be reduced, so that also here the transport costs can be reduced.
  • the revolving stage is detachably coupled to the vehicle so that it can be separated from the vehicle for road transport. This ensures that the height of the revolving stage does not take up even a part of the vehicle height, so that the attached supports, which can be moved from a folded transport position to a deployed working position, can fully exploit the maximum permissible height in the transport state.
  • the vehicle has four supports pivotally mounted on its chassis. These four supports can be pivotable via piston-cylinder arrangements.
  • the four supports are telescopic in length, so that the support base can be further increased.
  • the articulation points of the supports are arranged in the central region of the chassis, wherein the free ends of the supports are aligned in the transport position respectively in the direction of the driver's cab or the vehicle rear.
  • the rear supports are not only pivotable in a transport and working position, but also in a position between these two end positions in which the support base of the crane to the rear - especially when erecting the boom - can be improved. This results in erecting the boom a very high stall torque. After complete erection of the boom then the supports can be further pivoted into a working position, so that a uniform support in a 360 ° pivoting range is ensured here.
  • the supports In the transport position, the supports can essentially occupy the space between the chassis and the overall height of the vehicle.
  • the revolving stage can be connected to the vehicle with a quick connection.
  • a fast construction and removal of the revolving stages is possible.
  • FIG. 1 10 is a vehicle crane according to an embodiment of the present invention.
  • the vehicle crane consists of a vehicle 12 with in the representation according to FIG. 1 in working position unfolded supports 14, 16, 18 and 20.
  • the supports 14, 16, 18 and 20 are telescopic. They are each pivoted about hydraulic piston cylinder assemblies 22 from the transport position to a working position.
  • the mounted supports are supported in the transport position via hydraulically extendable outriggers 24 on the ground.
  • the vehicle crane 10 consists of a vehicle 12, which is designed as 8-axle. In front of the chassis with the eight axles a driver's cab 26 is arranged. Above the chassis with the eight axles, the supports 14, 16, 18 and 20 are pivoted in the central region of the vehicle 12. In the central region of the vehicle 12, a rotating crane 28 is arranged, on which a revolving stage 30 (see. FIG. 3 and FIG. 5 ) can be placed.
  • the legal total height for the vehicle is 12 4 m.
  • the hinged supports 14, 16, 18 and 20 are telescopic, wherein, as in the FIGS. 2, 3 and 4 shown, are formed box-shaped with a substantially rectangular cross-section.
  • the vehicle 12 moves without patch turntable and built-up crane structure to the site.
  • the revolving stage 30 optionally after previous assembly of attachments, such as catwalks 32 and a rise not shown here (see. FIG. 5 ) placed on the turntable 28.
  • the touchdown is done by a separate vehicle crane 50.
  • the vehicle crane takes the turntable 30 of a low loader. After appropriate driving away of the low loader, the large vehicle crane 10 is positioned at right angles to the vehicle crane 50 and the turntable 30 is lowered and connected via a quick connection or quick connection not shown here with the chassis frame.
  • the serving for mounting crane 50 positions its support under the folding spaces of the large vehicle crane 10.
  • the catwalks 32 and possibly other attachments such as a rise or the like can be connected via bolts with the turntable 30 before it is then placed together with these attachments on the large vehicle crane 10 and connected to this via the quick connection.
  • the crane body can then be bolted to the revolving stage.
  • the vehicle crane 10 Due to the high folding supports the vehicle crane 10 reaches a very high rigidity, so that much higher loads can be achieved.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Jib Cranes (AREA)

Description

Die Erfindung betrifft einen Fahrzeugkran bestehend aus einem Fahrzeug mit Fahrgestell und angebauten Stützen, die von einer angeklappten Transportstellung in eine ausgeklappte Arbeitsstellung verfahrbar sind, einer Drehbühne und einem auf der Drehbühne aufbaubaren Kranaufbau. Ein solcher Kran wird in der DE-U-94 12 217 und der DE-A-2 017 058 offenbart.The invention relates to a vehicle crane consisting of a vehicle with chassis and attached supports, which can be moved from a folded transport position into a deployed working position, a revolving stage and a buildable on the revolving crane structure. Such a crane will be in the DE-U-94 12 217 and the DE-A-2 017 058 disclosed.

Während üblicherweise ein Fahrzeugkran aus einem Fahrzeug mit fest aufgebauter Drehbühne und auf der Drehbühne aufgebautem Teleskopausleger besteht, ist es bei großen Fahrzeugkranen, die als Gitter- oder Telekrane ausgeführt sind, bereits bekannt geworden, den Gitter- oder Telekranteil vom übrigen Fahrzeug zu trennen, um so die maximalen Achslasten von 12 t während des Transports einhalten zu können. Erst auf der Baustelle im Einsatz wird der Gitter- bzw. Telekranteil, der getrennt zum Einsatzort transportiert wird, montiert. Derartige vorbekannte große Fahrzeugkrane bestehen demnach aus einem Fahrzeug mit angebauten Stützen, die von einer angeklappten Transportstellung in eine ausgeklappte Arbeitsstellung verfahrbar sind und einer Drehbühne.While usually a vehicle crane consists of a vehicle with fixed rotating platform and built on the turntable telescopic boom, it is already known in large vehicle cranes, which are designed as a lattice or telescopic crane to separate the lattice or Telekranteil from the rest of the vehicle to be able to meet the maximum axle loads of 12 t during transport. Only at the construction site in use, the grid or Telekranteil, which is transported separately to the place of use, mounted. Such previously known large vehicle cranes therefore consist of a vehicle with attached supports that can be moved from a folded transport position to a deployed working position and a revolving stage.

Aufgabe der Erfindung ist es, die Krangröße unter Beachtung der maximalen Achslast von 12 t und der gesetzlich zulässigen Gesamthöhe noch weiter zu steigern.The object of the invention is to increase the crane size, taking into account the maximum axle load of 12 t and the legally permissible total height even further.

Diese Aufgabe wird durch einen Fahrzeugkran mit der Kombination der Merkmale des Anspruchs 1 gelöst. Erfindungsgemäß wird hier bei einem Fahrzeugkran, der aus einem Fahrzeug mit Fahrgestell und angebauten Stützen, die von einer angeklappten Transportstellung in eine ausgeklappte Arbeitsstellung verfahrbar sind, eine Drehbühne und einem auf der Drehbühne aufbaubaren Kranaufbau, das Fahrgestell mit Stützen derart gestaltet, dass diese die maximale zulässige Höhe im Transportzustand, beispielsweise die zulässige Höhe von 4m, vollständig ausnutzen. Hierdurch ergeben sich sehr große Höhen für die Stütze. Hierdurch kann eine größere Stützbasis gewählt werden, wodurch der Kran sehr hohe Lasten mit vergleichsweise geringem Ballast heben kann. Diese Verringerung des notwendigen Ballasts führt insbesondere bei rasch wechselnden Einsatzstellen zu großen Vorteilen. Darüber hinaus kann das Gewicht des zu transportierenden Ballasts verringert werden, so dass auch hier die Transportkosten verringert werden können.This object is achieved by a vehicle crane with the combination of the features of claim 1. According to the invention is here in a vehicle crane, which consists of a vehicle with chassis and attached supports that are movable from a folded transport position into a deployed working position, a revolving stage and a buildable on the revolving crane structure, the chassis with supports designed such that this maximum permissible height in the transport state, for example, the permissible height of 4m, fully exploit. This results in very large heights for the support. As a result, a larger support base can be selected, whereby the crane can lift very high loads with comparatively low ballast. This reduction of the necessary ballast leads to great advantages, especially in rapidly changing locations. In addition, the weight of the ballast to be transported can be reduced, so that also here the transport costs can be reduced.

Bevorzugte Ausgestaltungen der Erfindung ergeben sich aus den sich an den Hauptanspruch anschließenden Unteransprüchen.Preferred embodiments of the invention will become apparent from the subsequent claims to the main claim.

Vorteilhaft ist die Drehbühne mit dem Fahrzeug derart abnehmbar gekoppelt, dass sie zum Straßentransport vom Fahrzeug trennbar ist. Hierdurch wird gewährleistet, dass die Höhe der Drehbühne nicht auch noch einen Teil der Fahrzeughöhe in Anspruch nimmt, so dass die angebauten Stützen, die von einer angeklappten Transportstellung in eine ausgeklappte Arbeitsstellung verfahrbar sind, die maximale zulässige Höhe im Transportzustand vollständig ausnutzen können.Advantageously, the revolving stage is detachably coupled to the vehicle so that it can be separated from the vehicle for road transport. This ensures that the height of the revolving stage does not take up even a part of the vehicle height, so that the attached supports, which can be moved from a folded transport position to a deployed working position, can fully exploit the maximum permissible height in the transport state.

Vorteilhaft weist das Fahrzeug vier an seinem Chassis ausschwenkbar gelagerte Stützen auf. Diese vier Stützen können über Kolben-Zylinderanordnungen verschwenkbar sein.Advantageously, the vehicle has four supports pivotally mounted on its chassis. These four supports can be pivotable via piston-cylinder arrangements.

Besonders vorteilhaft sind die vier Stützen in ihrer Länge teleskopierbar, sodass die Stützbasis noch weiter vergrößert werden kann.Particularly advantageously, the four supports are telescopic in length, so that the support base can be further increased.

Gemäß einer vorteilhaften Ausgestaltung der Erfindung sind die Anlenkpunkte der Stützen im mittleren Bereich des Chassis angeordnet, wobei die freien Enden der Stützen in Transportstellung jeweils in Richtung der Fahrerkabine bzw. des Fahrzeughecks ausgerichtet sind.According to an advantageous embodiment of the invention, the articulation points of the supports are arranged in the central region of the chassis, wherein the free ends of the supports are aligned in the transport position respectively in the direction of the driver's cab or the vehicle rear.

Hier ist es insbesondere von Vorteil, wenn die hinteren Stützen nicht nur in eine Transport- und Arbeitsstellung schwenkbar sind, sondern zusätzlich in eine Stellung zwischen diesen beiden Endstellungen, in der die Stützbasis des Krans nach hinten - insbesondere beim Aufrichten des Auslegers - verbesserbar ist. Hierdurch ergibt sich beim Aufrichten des Auslegers ein sehr hohes Standmoment. Nach vollständigem Aufrichten des Auslegers können dann die Stützen weiter in eine Arbeitsstellung verschwenkt werden, sodass hier eine gleichmäßige Abstützung in einem 360° Schwenkbereich sichergestellt ist.Here, it is particularly advantageous if the rear supports are not only pivotable in a transport and working position, but also in a position between these two end positions in which the support base of the crane to the rear - especially when erecting the boom - can be improved. This results in erecting the boom a very high stall torque. After complete erection of the boom then the supports can be further pivoted into a working position, so that a uniform support in a 360 ° pivoting range is ensured here.

Die Stützen können in Transportstellung im wesentlichen den Raum zwischen Fahrwerk und Gesamthöhe des Fahrzeugs einnehmen.In the transport position, the supports can essentially occupy the space between the chassis and the overall height of the vehicle.

Gemäß einer weiteren vorteilhaften Ausgestaltung der Erfindung ist die Drehbühne mit einer Schnellverbindung mit dem Fahrzeug verbindbar. Hierdurch ist ein schnelles Aufbauen und Abnehmen der Drehbühnen ermöglicht.According to a further advantageous embodiment of the invention, the revolving stage can be connected to the vehicle with a quick connection. As a result, a fast construction and removal of the revolving stages is possible.

Weitere Anbauteile der Drehbühne, wie beispielsweise seitliche Laufstege und/oder ein Aufstieg an diese Laufstege sind über Bolzen mit der Drehbühne verbindbar und können daher auch getrennt von der Drehbühne transportiert werden.Other attachments of the revolving stage, such as lateral walkways and / or an ascent to these catwalks are connected by bolts with the revolving stage and can therefore be transported separately from the revolving stage.

Weitere Einzelheiten und Vorteile der Erfindung ergeben sich aus einem in der Zeichnung dargestellten Ausführungsbeispiel. Es zeigen:

Figur 1:
eine Draufsicht auf einen Fahrzeugkran gemäß einer Ausführungsvariante der vorliegenden Erfindung in Arbeitsstellung,
Figur 2:
eine perspektivische Darstellung des Fahrzeugkrans gemäß Figur 1, ebenfalls in Transportstellung
Figur 3:
eine Seitendarstellung des Fahrzeugkrans mit einem gegenüber der Figur 2 variierten Kranaufbau,
Figur 4:
eine Seitendarstellung des Fahrzeugkrans gemäß Figur 4 ohne Drehbühne in Transportstellung und
Figur 5:
einen Fahrzeugkran gemäß Figur 4 von der Heckseite, während die Drehbühne mit einem Hilfsfahrzeugkran aufgesetzt.
Further details and advantages of the invention will become apparent from an embodiment shown in the drawing. Show it:
FIG. 1:
a top view of a vehicle crane according to an embodiment of the present invention in working position,
FIG. 2:
a perspective view of the vehicle crane according to FIG. 1 , also in transport position
FIG. 3:
a side view of the vehicle crane with a relation to the FIG. 2 varied crane construction,
FIG. 4:
a page representation of the vehicle crane according to FIG. 4 without turntable in transport position and
FIG. 5:
a vehicle crane according to FIG. 4 from the stern side, while the revolving stage is fitted with an auxiliary vehicle crane.

In Figur 1 ist mit 10 ein Fahrzeugkran nach einer Ausführungsform der vorliegenden Erfindung bezeichnet. Der Fahrzeugkran besteht aus einem Fahrzeug 12 mit in der Darstellung gemäß Figur 1 in Arbeitsstellung ausgeklappten Stützen 14, 16, 18 und 20. Wie in Figur 1 dargestellt, sind die Stützen 14, 16, 18 und 20 teleskopierbar. Sie werden jeweils über Hydraulikkolbenzylinderanordnungen 22 von der Transportstellung in eine Arbeitsstellung verschwenkt.In FIG. 1 10 is a vehicle crane according to an embodiment of the present invention. The vehicle crane consists of a vehicle 12 with in the representation according to FIG. 1 in working position unfolded supports 14, 16, 18 and 20. As in FIG. 1 shown, the supports 14, 16, 18 and 20 are telescopic. They are each pivoted about hydraulic piston cylinder assemblies 22 from the transport position to a working position.

In den Darstellungen gemäß der Figur 2 und 3 wird deutlich, dass die angebauten Stützen in der Transportstellung über hydraulisch ausfahrbare Abstützfüße 24 auf dem Boden abgestützt sind. Insbesondere den Figuren 3 und 4 ist zu entnehmen, dass der Fahrzeugkran 10 aus einem Fahrzeug 12 besteht, das als 8-Achser ausgeführt ist. Vor dem Fahrwerk mit den acht Achsen ist eine Fahrerkabine 26 angeordnet. Oberhalb des Fahrwerks mit den acht Achsen sind im mittleren Bereich des Fahrzeugs 12 die Stützen 14, 16, 18 und 20 schwenkbar angelenkt. Im Mittelbereich des Fahrzeugs 12 ist ein Drehkran 28 angeordnet, auf dem eine Drehbühne 30 (vgl. Figur 3 und Figur 5) aufsetzbar ist.In the representations according to the FIGS. 2 and 3 It is clear that the mounted supports are supported in the transport position via hydraulically extendable outriggers 24 on the ground. In particular the Figures 3 and 4 It can be seen that the vehicle crane 10 consists of a vehicle 12, which is designed as 8-axle. In front of the chassis with the eight axles a driver's cab 26 is arranged. Above the chassis with the eight axles, the supports 14, 16, 18 and 20 are pivoted in the central region of the vehicle 12. In the central region of the vehicle 12, a rotating crane 28 is arranged, on which a revolving stage 30 (see. FIG. 3 and FIG. 5 ) can be placed.

In Deutschland ist die gesetzlich zugelassene Gesamthöhe für das Fahrzeug 12 4 m. Diese kann bei der Gestaltung des Fahrzeugkrans 10 gemäß der vorliegenden Erfindung vollständig für die Stützen 14, 16, 18 und 20 sowie das Fahrgestell ausgenützt werden. Hierdurch kann für die entsprechenden Stützen 14, 16, 18 und 20 eine sehr große Höhe ausgenutzt werden. Aufgrund des insgesamt zur Verfügung stehenden Raumes können aber auch die Räder des Fahrwerks mit einer höheren Tragkraft vorgesehen werden. Im hier dargestellten Beispielfall sind Räder mit der Größe 18.00 R25 gewählt, so dass der Kran auf der Baustelle auch mit aufgesetzter Drehbühne, Ballast und einem Teil des Auslegers verfahrbar ist. Die anklappbaren Stützen 14, 16, 18 und 20 sind teleskopierbar, wobei sie, wie in den Figuren 2, 3 und 4 dargestellt, kastenförmig mit im wesentlichen rechteckigen Querschnitt ausgebildet sind.In Germany, the legal total height for the vehicle is 12 4 m. This can be fully exploited in the design of the vehicle crane 10 according to the present invention for the supports 14, 16, 18 and 20 and the chassis. As a result, a very large amount can be utilized for the corresponding supports 14, 16, 18 and 20. Due to the total available space but also the wheels of the chassis can be provided with a higher load capacity. In the example shown here, wheels with a size of 18.00 R25 are selected, so that the crane can be moved on the construction site with the turntable, ballast and part of the jib attached. The hinged supports 14, 16, 18 and 20 are telescopic, wherein, as in the FIGS. 2, 3 and 4 shown, are formed box-shaped with a substantially rectangular cross-section.

Während des Straßentransports fährt das Fahrzeug 12 ohne aufgesetzte Drehbühne und ohne aufgebauten Kranaufbau an den Einsatzort. Am Einsatzort wird dann die Drehbühne 30, gegebenenfalls nach vorheriger Montage von Anbauteilen, wie Laufstegen 32 und einem hier nicht näher dargestellten Aufstieg (vgl. Figur 5) auf den Drehkranz 28 aufgesetzt. Das Aufsetzen erfolgt über einen eigenen Fahrzeugkran 50. Der Fahrzeugkran entnimmt die Drehbühne 30 von einem Tieflader. Nach entsprechendem Wegfahren des Tiefladers wird der große Fahrzeugkran 10 rechtwinklig zu dem Fahrzeugkran 50 positioniert und die Drehbühne 30 wird abgesenkt und über eine hier nicht näher dargestellte Schnellverbindung oder Quick-Connection mit dem Fahrwerkgestell verbunden.During road transport, the vehicle 12 moves without patch turntable and built-up crane structure to the site. At the place of use is then the revolving stage 30, optionally after previous assembly of attachments, such as catwalks 32 and a rise not shown here (see. FIG. 5 ) placed on the turntable 28. The touchdown is done by a separate vehicle crane 50. The vehicle crane takes the turntable 30 of a low loader. After appropriate driving away of the low loader, the large vehicle crane 10 is positioned at right angles to the vehicle crane 50 and the turntable 30 is lowered and connected via a quick connection or quick connection not shown here with the chassis frame.

Durch die hochliegend angebauten Stützen beim Fahrzeugkran 10 ist es möglich, dass der zur Montage dienende Kran 50 seine Abstützung unter den Klappräumen des großen Fahrzeugkrans 10 positioniert.Due to the upright mounted supports in the vehicle crane 10, it is possible that the serving for mounting crane 50 positions its support under the folding spaces of the large vehicle crane 10.

Die Laufstege 32 und gegebenenfalls weitere Anbauteile wie ein Aufstieg oder dergleichen sind über Bolzen mit der Drehbühne 30 verbindbar, bevor diese dann mit diesen Anbauteilen zusammen auf den großen Fahrzeugkran 10 aufgesetzt und mit diesem über die Schnellverbindung verbunden wird.The catwalks 32 and possibly other attachments such as a rise or the like can be connected via bolts with the turntable 30 before it is then placed together with these attachments on the large vehicle crane 10 and connected to this via the quick connection.

In an sich bekannter Weise kann anschließend der Kranaufbau mit der Drehbühne verbolzt werden.In a conventional manner, the crane body can then be bolted to the revolving stage.

Durch die hohen klappbaren Stützen erreicht der Fahrzeugkran 10 eine sehr hohe Steifigkeit, sodass wesentlich höhere Traglasten erreicht werden können.Due to the high folding supports the vehicle crane 10 reaches a very high rigidity, so that much higher loads can be achieved.

Claims (7)

  1. A mobile crane (10) consisting of a vehicle (12) having an undercarriage and attached supports (14, 16, 18, 20) which are movable from a folded up transport position into a swung-out working position, a revolving deck (30) and a crane superstructure attachable to the revolving deck (30),
    characterised in that
    the undercarriage together with the supports (14, 16, 18, 20) attached to it fully utilises the maximum permitted height of the vehicle in the transport state; the vehicle (12) has four supports (14, 16, 18, 20) which are journaled in an outwardly pivoted manner at its chassis; the length of the four supports (14, 16, 18, 20) can be telescoped; and the pivot points of the supports (14, 16, 18, 20) are disposed in the middle region of the chassis; and in that the free ends of the supports are each directed in the transport position in the direction of the operator's cabin or of the rear of the vehicle.
  2. A mobile crane in accordance with claim 1, characterised in that the revolving deck (30) is removably coupled to the vehicle (12) such that it can be separated from the vehicle for road transport.
  3. A mobile crane in accordance with one of the claims 1 or 2, characterised in that the four supports (14, 16, 18, 20) are pivotable via piston-in-cylinder arrangements.
  4. A mobile crane in accordance with claim 1, characterised in that the rear supports (14, 16) are not only pivotable into a transport position and into a working position, but rather additionally into a position between these two end positions in which the support base of the crane can be improved to the rear - in particular on the erecting of the boom.
  5. A mobile crane in accordance with one of the claims 1 to 4, characterised in that the supports (14, 16, 18, 20) substantially take up the space between the undercarriage and the total height of the vehicle in the transport position.
  6. A mobile crane in accordance with one of the claims 1 to 5, characterised in that the revolving deck (30) can be connected to the vehicle by a fast-action connection.
  7. A mobile crane in accordance with one of the claims 1 to 6, characterised in that runways (32) and/or a way up can be connected to the revolving deck (30) laterally via bolts.
EP04022087.3A 2003-12-10 2004-09-16 mobile crane Expired - Lifetime EP1541520B2 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE20319181U 2003-12-10
DE20319181 2003-12-10
DE20319660U DE20319660U1 (en) 2003-12-10 2003-12-18 Mobile crane, has vehicle with chassis having extendable supports that utilize maximum permissible height of drive train in their transport position, and crane structure arranged on revolving platform that is removably coupled to vehicle
DE20319660U 2003-12-18

Publications (3)

Publication Number Publication Date
EP1541520A1 EP1541520A1 (en) 2005-06-15
EP1541520B1 EP1541520B1 (en) 2009-11-04
EP1541520B2 true EP1541520B2 (en) 2015-03-25

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102019134637A1 (en) * 2019-12-17 2021-06-17 Liebherr-Werk Ehingen Gmbh Mobile crane

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Publication number Priority date Publication date Assignee Title
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EP1541520A1 (en) 2005-06-15

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