EP2998264B1 - Mât en treillis haubanés latéralement - Google Patents

Mât en treillis haubanés latéralement Download PDF

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Publication number
EP2998264B1
EP2998264B1 EP15178247.1A EP15178247A EP2998264B1 EP 2998264 B1 EP2998264 B1 EP 2998264B1 EP 15178247 A EP15178247 A EP 15178247A EP 2998264 B1 EP2998264 B1 EP 2998264B1
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EP
European Patent Office
Prior art keywords
bracing
lattice mast
jib
support
guy
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EP15178247.1A
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German (de)
English (en)
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EP2998264A1 (fr
Inventor
Günter Karp
Fritz-Botho Köster
Frank Schnittker
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Terex Global GmbH
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Terex Global GmbH
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Publication of EP2998264A1 publication Critical patent/EP2998264A1/fr
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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
    • B66C23/82—Luffing gear
    • B66C23/821—Bracing equipment for booms
    • B66C23/825—Bracing equipment acting in horizontal direction

Definitions

  • the invention relates to a lattice boom crane with a guying device.
  • the at least one guy support is guyed over guy means, so that the lateral stiffness of the lattice boom is increased.
  • Telescopic cranes are characterized by the fact that the crane boom consists of several telescopically telescoping telescopic shots, whereas in a lattice boom crane, the boom consists of several rigidly interconnected lattice mast elements.
  • a telescopic crane or lattice boom crane may comprise a wheeled undercarriage or crawler undercarriage. Under certain circumstances, it is also possible that an undercarriage of a telescopic or lattice boom crane can only be moved by a separate means of transport such as, for example, a low loader.
  • a telescopic crane comprising a movable undercarriage and an upper carriage rotatably mounted thereon.
  • On the superstructure of the telescopic boom is arranged.
  • This telescopic boom can be braced by a lateral guying device.
  • the lateral guying device here comprises two bracing posts projecting from the telescopic boom on opposite sides or projecting to the side.
  • the head ends of the two guy supports are braced with an upper portion of the telescopic boom and with a arranged in the base of the telescopic boom tensioning means.
  • the lower guy means extending from the head end of the guy support to the area at the base of the telescopic boom is referred to as a fixed guy
  • the upper guy between the head of the guy and the upper part of the telescopic jib is referred to as a variable length guy.
  • the length-adjustable bracing is designed as a wire rope. It should be noted that already in the aforementioned DE 199 30 537 proposed for the telescopic crane lateral bracing is also proposed for use on lattice boom cranes.
  • the EP 1 213 254 A1 discloses a telescopic boom which, in order to avoid cable winches in the bracing, has an upper bracing which is formed over its length substantially by a number of mutually connectable or connected tension members each having a fixed length. wherein the fixed lengths of the tension elements are dimensioned such that predetermined discrete extension lengths of the telescopic boom each corresponding to a certain number of tension elements. This makes it possible to set an intrinsic blockage of the guy.
  • a lateral bracing for a lattice boom or lattice boom is, for example, in the DE 20 2004 009 782 U1 disclosed.
  • the lattice boom for a crane described herein comprises at least two boom shots and at least one guy brace for a guy with a guy rope.
  • the foot of the at least one guy support is configured such that it can be secured between two boom sections. Basically should be increased by this bracing the lateral stiffness and thus the load of the boom system even with a steep boom.
  • the embodiment with a guy support between two boom shots to allow the most flexible use of Soablik.
  • this system has the disadvantage that when joining the lattice boom already has to be determined whether the lateral bracing in the form of at least one bracing support is desired.
  • the explicit cable tensioning of the guy support for both the upper and lower guy means should require very large dimensions of the cable to achieve the appropriate forces for the desired stiffening of the lattice boom.
  • the rope suspensions are each provided with a top end of a guy support Guide pulley, but this may possibly lead to problems in setting the correct cable tension. Cable vibrations also make it difficult to maintain a statically reliable preload and require their control.
  • a guying device which is designed for releasable attachment to a lattice boom of a lattice boom crane and comprises at least one guy support, which is designed so that it is cantilevered laterally cantilevered on the lattice boom.
  • This bracing device further comprises an upper bracing means which connects the bracing support to a lattice mast part located in the region of the head end of the lattice boom and at least one rigid rod-shaped element or rope, e.g. a wire rope has or consists of this.
  • the guying device comprises a lower tie-down means which connects the guy support to a part of the lattice boom or the upper carriage located in the area of the base end of the lattice boom and at least one rigid, rod-shaped guying element or rope, e.g. a wire rope comprises or consists of these.
  • the guy support is hinged to the lattice boom to prevent additional bending moment loading on the lattice boom.
  • the guy elements can be used both as a full and as a hollow rod, i. be designed as a tube, wherein a plurality of guying elements of a guy means can be hinged together.
  • a warp it is possible for a warp to be used as a guy.
  • An advantage of this embodiment may be that the removal of the guying device is facilitated for transport purposes and thus u.U. It is also possible to comply with a maximum transport width in accordance with the traffic licensing regulations.
  • guy supports With a non-inventive embodiment of the guy supports they are parallel to a longitudinal axis of the lattice boom displaced. This makes it possible, the clamping forces in the guy elements via a movable positioning of the To control guy supports on the lattice boom.
  • the guy supports are connected to one another via a common slide link displaceably mounted on the lattice boom.
  • the guy supports can be hingedly attached to the slide link so that the clamping forces in the guy elements can be varied both by relative positioning of the guy supports by means of a slide link relative to the lattice boom and by articulated positioning of the guy supports on the slide link.
  • the guy supports can be rigidly connected to the sliding gate of the lattice boom, so that the guy has a high inherent rigidity and a low natural frequency.
  • a lattice boom crane is provided with a guy device according to the invention comprising an uppercarriage.
  • the upper tensioning means as well as the lower tensioning means each have at least one rigid, rod-shaped tensioning element.
  • the upper anchoring means, on the one hand, and the lower anchoring means, on the other hand, may consist of the anchoring element, so that they can not have any further components apart from this anchoring element.
  • the guy elements can be designed as a solid or hollow rod, ie as a tube.
  • the individual guy elements of a guy means can be hinged together.
  • both the upper anchoring means and the lower anchoring means may each be formed from or comprise at least one cable such as, for example, a wire rope and / or a so-called "composite rope" made of monolithic or combined fiber composite materials.
  • the upper and lower bracing means may be made in one piece or split into upper and lower bracing means. In the case of a one-piece anchoring means, this is preferably deflected over a radius at the outer end of the guy support to the head piece and to the foot piece of the lattice boom or to the undercarriage.
  • the anchoring means can also be designed as chains.
  • the upper anchoring means and / or the lower anchoring means is articulated to the guy support on the one hand and / or hinged to the lattice boom or a component of the superstructure on the other hand.
  • the lattice boom crane may also include an undercarriage on which the upper carriage is rotatably mounted.
  • the lattice boom can be arranged on the superstructure and the guy support can be hinged on the lattice boom.
  • the upper or lower guy means In another exemplary multi-membered embodiment of the upper or lower guy means, i.
  • a plurality of rod-shaped anchoring elements which are lined up, for example via articulated joints, also an extremely simple and easy assembly and disassembly of the guy support and the associated upper and lower anchoring means is possible.
  • the transport of the anchoring means and the guy support from one location to the next can be simplified or the guy can be stored separately from the crane and used variably.
  • the invention prevents that acts on the guy supports an additional bending moment load on the lattice boom.
  • At least one guy pair is present on the lattice boom.
  • a first guy support this guy pair is preferably for projecting towards the head of the lattice boom on the left side cantilevered on the lattice boom, a second guy support is then projecting toward the head of the lattice boom viewed right side on the lattice boom cantilevered.
  • the first and second guy supports of the guy pair are arranged opposite one another on the lattice boom.
  • a symmetrical bracing of the lattice boom can be achieved.
  • that is at least one rigid end element of the upper tensioning means and / or the lower tensioning means is formed from a monolithic fiber composite material or a combination of a fiber composite material and a metal material. Due to the combination or the complete design of the guying element made of fiber composite very high tensile forces can be absorbed in the guy elements and at the same time a weight reduction can be achieved.
  • the attachment could also be arranged on the lower foot or base box of the lattice boom.
  • a laterally projecting fastening means for the upper guy means is provided in the region of the head end of the lattice boom.
  • the lattice boom crane shown comprises an undercarriage 1a and a superstructure 1b rotatably mounted thereon.
  • the undercarriage 1a is equipped with a crawler track.
  • the undercarriage 1a is provided with wheels, so that it is then a vehicle crane or a support crane without chassis with lattice boom.
  • a support crane in the sense of the present invention may be a "Pedestal Crane" without wheels or crawler tracks, but not a tower crane.
  • the crane can also be designed as a gantry crane on rail chassis.
  • a conventional lattice boom 5 with a longitudinal axis 31 is present on the superstructure 1b of the lattice boom crane.
  • the lattice boom 5 here consists for example of several lattice boom segments and is on the boom foot 3 about a transverse axis 14 rocking, ie adjustable in its inclination or angular position. Accordingly, the lattice boom 5 relative to a horizontal adjustable and thus the rocking angle adjustable.
  • an adjustable bracing which is located behind the lattice boom 5 on the side facing away from a lifted load (not shown).
  • the boom consists of at least two lattice boom segments (foot piece 3 and head piece 4).
  • the lattice boom segment attached to the uppercarriage 1b is the boom foot 3.
  • the uppermost segment of the lattice boom is the boom head 4.
  • the intermediate segments are referred to as intermediate segments.
  • At least one of the segments one or more guy supports 6 are hinged. These guy supports 6 have a foot 7 and a head 8.
  • the components 6, 7, 8 of the guy support are designed as lattice girders.
  • other structures such as solid wall beams, pipe profiles or steel profile support for such applications are conceivable.
  • the column feet 7 of the two guy supports 6 are pivotally connected to the same or different boom segments 3, 4 or 5.
  • this joint 20 may be locked to the column feet 7 during operation.
  • it is also a rigid connection of the boom support 7 on one of the segments 3, 4 or 5 of the boom possible, such as a support via a hydraulic cylinder, the guy support 6 at an angle greater than 90 °, equal to 90 ° or less than 90 ° relative to the longitudinal axis 31 of the lattice boom 5 is supported or adjusted.
  • a pneumatic cylinder or a driving stick can be used.
  • the angle that the boom support 6 occupies with respect to the so-called seesaw level about 90 degrees.
  • the rocker plane is here the plane that is spanned by the lattice boom 5 in different rocker positions. Since there is no separate support cylinder for holding the guy support 6, the hinge 20 is stiffened at the column foot 7 in the direction of the hinge axis, the possible forces, which prevents pivoting of the guy support about an axis which is parallel to the extension direction of the lattice boom 5 becomes.
  • the support heads 8 of the boom support 6 are arranged projecting laterally and at these support heads 8 are each a lower and an upper bracing 9, 10 attached to at least one fixed point 39.
  • the bracing 9, 10 are also referred to as anchoring means.
  • the lower brace 9 simultaneously also represents a rear brace and the upper brace 10 simultaneously also a front brace.
  • the upper brace 10 is connected to a lattice boom segment of the lattice boom above the brace support 6.
  • the lower brace 9 is in the in the Fig. 1 left exemplary embodiment with a projection or a frame 12 hingedly connected.
  • the bracing 9 is in each case articulated directly to the head 4 of the lattice boom 5 and over a hydraulic cylinder 13 connected to the foot 3 of the lattice boom 5.
  • the articulation points of the two bracing 9, 10 can be positioned directly on the lattice boom segments, but they can also be attached to cantilevers 11 or other additional elements such as a guy clamp.
  • the lower bracing 9 may preferably lie on the axis of rotation 14 of the boom 5, wherein also an additional frame as already mentioned may be used to the force triangle between the fixed point 39, the articulated linkage 20 and the respective pivot point 12 or 14 to close in one plane.
  • an additional frame as already mentioned may be used to the force triangle between the fixed point 39, the articulated linkage 20 and the respective pivot point 12 or 14 to close in one plane.
  • the cantilevered frames 12 form the function of the actual guy supports.
  • the upper bracing 10 may also be connected to an auxiliary boom, not shown, preferably via further guy supports, which is arranged on the head of the lattice boom 5.
  • the jib forms part of the lattice boom 5 or a separate luffing jib.
  • a suitable bias voltage in the guy elements 9, 10 can be achieved.
  • a spindle drive and a rope drive can be used. This is particularly advantageous when used as guy elements ropes.
  • Controlled biasing forces for the upper and / or lower braces 9 can also be generated with the aid of the mentioned tensioning devices 13. For example, an automatic readjustment of the clamping forces in a control loop is conceivable.
  • length changes of the guy supports 6 via hydraulic or pneumatic cylinders are conceivable, so that then a targeted biasing force in the Tie down means 9, 10 can be achieved.
  • the guy supports 6 can also be arranged in the region of the foot and / or the head of the lattice boom 5, in order to prevent u.U. To achieve a better lever arm of Soabbond to lattice boom 5.
  • the individual guy elements 9, 10 may consist, for example, of steel, carbon fiber, a fiber composite material or combinations of these materials.
  • Tie-down chains are another variant for the guy elements.
  • the guy chains run at the head of the lateral guy supports on sprockets and are preferably prestressed via chain hoists instead of the hydraulic cylinder 13.
  • the individual rods at least Verbolzonne 25 by 90 ° to each other at least partially rotated so that by its own weight especially when straightening and flat boom positions no too large bending moment on the connections of the individual rods 9, 10 is created.
  • the Verbolzonne can also be in line with each other, so that the guy rods fold by a mutual entanglement by 180 ° advantageous to a low transport height of themselves to each other.
  • bracing invention even a long rigid or rocking jib or a long SL mast (counter jib) can be braced by a bracing invention, as well as any combinations thereof.
  • FIGS. 3 and 4 show a non-inventive embodiment of a lattice boom crane. Components which correspond to those described above with reference to FIGS. 1 and 2 already described, bear the same reference numbers and will not be discussed again in detail.
  • the attachment of the guy supports 6, 7, 8 on a slide link 32 is the attachment of the guy supports 6, 7, 8 on a slide link 32.
  • the column foot 7 is connected by means of a hinge 20 directly to the slide link 32.
  • the slide link 32 is displaceable parallel to the longitudinal axis 31 of the lattice boom 5 and mechanically or hydraulically by means of a locking unit, not shown, in a desired position lockable.
  • the sliding link 32 has an outer frame 33 which completely encloses the circumference of the lattice boom 5 and the lattice boom 5 along the longitudinal axis 31 and can slide on this parallel to the longitudinal axis 31.
  • friction slide or roller body can be used between the outer frame 33 and the lattice boom 5 not shown.
  • Fig. 5 is a non-inventive embodiment of a lattice boom crane shown. Components which correspond to those described above with reference to FIGS. 1 to 4 already described, bear the same reference numbers and will not be discussed again in detail.
  • lattice boom crane is a direct connection of the slide link 32 with the lattice boom 5 by means of a hydraulic cylinder 34.
  • the hydraulic cylinder 34 is in each case by means of a hinge 20 on the outer frame 33 of the slide link 32 and on the lattice boom 5, in particular on the boom 3, attached.
  • the hydraulic cylinder 34 is in a printing position, that is, a piston rod 35 of the hydraulic cylinder 34 is on the sliding link 32 and a cylinder base 36 is articulated to the lattice boom 5.
  • the hydraulic cylinder 34 can also be subjected to ring pressure or differential pressure on the ring side. This facilitates the positioning of the slide link 32.
  • FIGS. 6 and 7 show a non-inventive embodiment of a lattice boom crane. Components which correspond to those described above with reference to FIGS. 1 to 5 already described, bear the same reference numbers and will not be discussed again in detail.
  • connection of the guy support is not a Stützfußfuß, but directly from the guy support 6 via a connector 37 to the outer frame 33 of the slide link 32.
  • This connection can be made detachable or non-detachable be.
  • the two connecting pieces 37 of the opposite of the lattice boom 5 mounted Abspann azinpass 6, 8 are each rigidly connected to the guy support 6 and the Schiebekulisse 32 so that on the connecting pieces 37 and the slide link 32 is a rigid connection 38 of the guy supports 6, wherein the rigid connection 38 is displaceable parallel to the longitudinal axis 31.
  • FIG. 8 is a non-inventive embodiment of a lattice boom crane shown.
  • FIG. 8 Substantial difference of in FIG. 8 shown lattice boom crane compared to the embodiment not according to the invention FIG. 6 is the absence of hydraulic cylinders used as tensioning devices 13 for biasing the guy elements 9, 10.
  • a necessary tension in the tension elements 9, 10 exclusively achieved gravimetrically, ie by the weight of the lattice boom 5 along the longitudinal axis 31 slidably mounted Abspann sunpass 6, 8 and the slide link 32nd
  • the lateral bracing support separates the bracing elements in a lower bracing and an upper bracing.
  • the upper brace has at least one rod and possibly a cantilever.
  • the lower bracing also comprises at least one rod, a rope or a chain and possibly a permanently set to tensile stress device, which is preferably designed as a claimed hydraulic train to train.
  • the upper and the lower bracing each engage at a fixed point 39 on the guy supports, wherein the fixed point 39 is advantageously designed as a bolt connection. But it is also possible to represent the fixed point 39 by chain stops. As a result, lateral forces could be reduced to the guy supports and sudden loads of the guy supports in the form of shocks can be avoided. Vibrations of the guy rods, ropes or chains on the guy supports are thereby effectively suppressed.
  • an inventive lattice boom crane compared to the lattice boom crane according to the aforementioned DE 20 2004 009 782 U1 for example, by one or more of the following features.
  • the Anspann 100 are pivotally connected to the lattice boom.
  • the lateral bracing elements are each divided into an upper and lower element, which can be connected to the ends of the guy supports either fixed or articulated.
  • the foot ends of the guy supports are bolted to or slide against the lattice boom via an articulated linkage via a slide link and do not require the presence of a special boom link.
  • the Tie-down elements are used in upper and lower elements for flexible "standing" ropes, rods or chains.

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

Claims (11)

  1. Dispositif d'haubanage (9, 10), destiné à être installé de manière amovible sur une console de mât en treillis (5) d'une grue à mât en treillis, comprenant :
    - au moins un support d'haubanage (6, 7, 8) pouvant être disposé de manière à faire saillie latéralement sur la console de mât en treillis (5),
    - un moyen d'haubanage supérieur (10) qui relie le support d'haubanage (6, 7, 8) à une partie de console de mât en treillis (11) se trouvant au niveau de l'extrémité de tête (4) de la console de mât en treillis (5) et qui comporte au moins un élément d'haubanage rigide en forme de barre ou un câble, et
    - un moyen d'haubanage inférieur (9) qui relie le support d'haubanage (6, 7, 8) à une partie de console de mât en treillis (3) se trouvant au niveau de l'extrémité de pied (3) de la console de mât en treillis (5) ou à un composant (12) de la superstructure (1b) et qui comporte au moins un élément d'haubanage rigide en forme de barre,
    caractérisé en ce que le support d'haubanage (6, 7, 8 ; 6, 8) est monté de manière articulée sur la console de mât en treillis de sorte qu'une contrainte de couple de flexion supplémentaire exercée sur la console de mât en treillis (5) est empêchée par le support d'haubanage (6, 7, 8).
  2. Dispositif d'haubanage (9, 10) selon la revendication 1, caractérisé en ce qu'au moins une paire de supports d'haubanage (6, 7, 8) est présente au niveau de la console de mât en treillis (5), dont un premier support d'haubanage (6, 7, 8) peut être disposé de manière à faire saillie de la console de mât en treillis (5) par rapport au côté gauche lorsque l'on regarde en direction de l'extrémité de tête (4) et dont un second support d'haubanage (6, 7, 8) peut être disposé de manière à faire saillie de la console de mât en treillis (5) par rapport au côté droit lorsque l'on regarde en direction de l'extrémité de tête (4).
  3. Dispositif d'haubanage (9, 10) selon la revendication 2, caractérisé en ce que les premier et second supports d'haubanage (6, 7, 8) d'une paire de supports d'haubanage sont disposés l'un en face de l'autre sur la console de mât en treillis (5).
  4. Dispositif d'haubanage (9, 10) selon l'une des revendications précédentes, caractérisé en ce que les moyens d'haubanage supérieur et/ou inférieur (9, 10) sont constitués d'une pluralité de barres d'haubanage rigides reliées entre elles de manière articulée.
  5. Dispositif d'haubanage (9, 10) selon l'une des revendications précédentes, caractérisé en ce que les moyens d'haubanage supérieur et/ou inférieur (9, 10) sont reliés à un dispositif tendeur (13) au moyen duquel une force de traction prédéterminée peut être exercée sur les moyens d'haubanage supérieur et/ou inférieure (9, 10).
  6. Dispositif d'haubanage (9,10) selon l'une des revendications précédentes, caractérisé en ce que les dispositifs tendeurs (13) destinés aux moyens d'haubanage de montants d'haubanage droit et gauche (6, 7, 8) peuvent être actionnés indépendamment les uns des autres.
  7. Dispositif d'haubanage (9, 10) selon l'une des revendications précédentes, caractérisé en ce qu'un ou plusieurs éléments d'haubanage (9, 10) sont constitués au moins en partie d'un matériau composite renforcé par des fibres.
  8. Dispositif d'haubanage (9, 10) selon l'une des revendications précédentes, caractérisé en ce qu'une liaison par boulons forme une articulation (25) entre deux éléments d'haubanage (9, 10) adjacents.
  9. Dispositif d'haubanage (9, 10) selon la revendication 8, caractérisé en ce que deux liaisons successives par boulons d'un moyen d'haubanage (9, 10) sont entraînées en rotation l'une par rapport à l'autre d'un angle de par exemple 90°.
  10. Dispositif d'haubanage (9, 10) selon l'une des revendications précédentes, caractérisé en ce qu'une console auxiliaire rigide ou relevable ou un long mât SL, comme par exemple une contre-console, est haubanée à l'aide d'au moins un support d'haubanage (6, 7, 8) pouvant être disposé de manière à faire saillie latéralement.
  11. Grue à mât en treillis équipée d'un dispositif d'haubanage selon l'une des revendications précédentes, caractérisée en ce que
    - la grue à mât en treillis comporte une superstructure (1b),
    - le moyen d'haubanage supérieur (10) et le moyen d'haubanage inférieur (9) sont montés de manière articulée sur le support d'haubanage (6, 7, 8 ; 6, 8),
    - la grue à mât en treillis comporte une infrastructure (1a),
    - la superstructure (1b) est disposée de manière rotative sur l'infrastructure (1a) et
    - la console de mât en treillis (5) est disposée sur la superstructure (1b).
EP15178247.1A 2008-05-06 2009-05-06 Mât en treillis haubanés latéralement Active EP2998264B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE202008006167U DE202008006167U1 (de) 2008-05-06 2008-05-06 Seitlich abgespannter Gittermast
EP09741881.8A EP2271576B1 (fr) 2008-05-06 2009-05-06 Mât en treillis entretoisé latéralement
PCT/EP2009/003238 WO2009135662A1 (fr) 2008-05-06 2009-05-06 Mât en treillis entretoisé latéralement

Related Parent Applications (2)

Application Number Title Priority Date Filing Date
EP09741881.8A Division EP2271576B1 (fr) 2008-05-06 2009-05-06 Mât en treillis entretoisé latéralement
EP09741881.8A Division-Into EP2271576B1 (fr) 2008-05-06 2009-05-06 Mât en treillis entretoisé latéralement

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EP2998264A1 EP2998264A1 (fr) 2016-03-23
EP2998264B1 true EP2998264B1 (fr) 2018-09-12

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EP09741881.8A Active EP2271576B1 (fr) 2008-05-06 2009-05-06 Mât en treillis entretoisé latéralement
EP15178247.1A Active EP2998264B1 (fr) 2008-05-06 2009-05-06 Mât en treillis haubanés latéralement

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EP09741881.8A Active EP2271576B1 (fr) 2008-05-06 2009-05-06 Mât en treillis entretoisé latéralement

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EP (2) EP2271576B1 (fr)
DE (1) DE202008006167U1 (fr)
WO (1) WO2009135662A1 (fr)

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DE102009008808A1 (de) 2009-02-11 2010-09-09 V & M Deutschland Gmbh Zugstange für die Abspannung eines Kranauslegers
DE102009008809A1 (de) 2009-02-11 2010-08-19 V & M Deutschland Gmbh Zugstange für die Abspannung eines Kranauslegers
EP2253575B1 (fr) * 2009-05-20 2013-01-16 Manitowoc Crane Companies, LLC Palonnier de galhauban de grue
CN102464269B (zh) * 2010-11-09 2013-10-23 徐州重型机械有限公司 伸缩臂式起重机及其超起角度自动变换装置
DE102014003831A1 (de) * 2014-03-18 2015-09-24 Liebherr-Werk Ehingen Gmbh Kranauslegersystem mit einem ersten Auslegerelement und einem daran wippbar angelenkten zweiten Auslegerelement sowie Kran
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DE202008006167U1 (de) 2008-07-17
WO2009135662A1 (fr) 2009-11-12
EP2271576A1 (fr) 2011-01-12
EP2271576B1 (fr) 2016-03-16
EP2998264A1 (fr) 2016-03-23

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