EP1369373A2 - Flèche télescopique de grue - Google Patents

Flèche télescopique de grue Download PDF

Info

Publication number
EP1369373A2
EP1369373A2 EP03004656A EP03004656A EP1369373A2 EP 1369373 A2 EP1369373 A2 EP 1369373A2 EP 03004656 A EP03004656 A EP 03004656A EP 03004656 A EP03004656 A EP 03004656A EP 1369373 A2 EP1369373 A2 EP 1369373A2
Authority
EP
European Patent Office
Prior art keywords
guy
rope
telescopic boom
cable lock
supports
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
EP03004656A
Other languages
German (de)
English (en)
Other versions
EP1369373B1 (fr
EP1369373A3 (fr
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
Original Assignee
Liebherr Werk Ehingen GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from DE20208740U external-priority patent/DE20208740U1/de
Priority claimed from DE2002157658 external-priority patent/DE10257658A1/de
Application filed by Liebherr Werk Ehingen GmbH filed Critical Liebherr Werk Ehingen GmbH
Publication of EP1369373A2 publication Critical patent/EP1369373A2/fr
Publication of EP1369373A3 publication Critical patent/EP1369373A3/fr
Application granted granted Critical
Publication of EP1369373B1 publication Critical patent/EP1369373B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • B66C23/64—Jibs
    • B66C23/70—Jibs constructed of sections adapted to be assembled to form jibs or various lengths
    • B66C23/701—Jibs constructed of sections adapted to be assembled to form jibs or various lengths telescopic
    • 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
    • B66C23/826—Bracing equipment acting at an inclined angle to vertical and horizontal directions
    • B66C23/828—Bracing equipment acting at an inclined angle to vertical and horizontal directions where the angle is adjustable

Definitions

  • the present invention relates to a telescopic boom of a crane with a Articulation shot, telescopic shots telescopic from the articulation shot as well a guy that has at least one guy support mounted on one of the shots and has a guy rope supported by the guy support.
  • guy supports In order also in the telescopic boom a lateral guying z. B. against wind forces guy supports can be used, which are not only erected, but can also be spread out in a V-shape.
  • DE 100 22 658 A1 shows a corresponding telescopic boom, in which the guy supports on a Swivel frame are articulated on the top of the articulation shot is pivotally attached.
  • the guy supports can be swiveled by swiveling the swivel frame be erected.
  • the guy supports can be relative to the swing frame can be pivoted to be spread V-shaped. The movement of the guy supports is controlled by appropriate hydraulic cylinders realized.
  • the guy supports are connected with guy ropes, that run off the guy supports.
  • the guy ropes When extending the telescopic boom and after the guy supports are erected accordingly, the guy ropes subtracted from their ends. With the boom extended must be at the tip of the telescopic boom or on the collar of one of the guyed ropes attached to the guy ropes with their guy posts Ends are held on the guy supports, the latter in turn be intercepted at the foot of the boom linkage. Holding the Guy ropes on the guy supports can, for example, have appropriate Winches take place from which the guy ropes run. Such winds must however, due to the large forces, they are dimensioned accordingly therefore difficult.
  • the guy ropes have also been suggested to hold with rope clamps. Here, however, it is expensive to do the ropes exactly to fix in the desired expired length. There are also concerns against permanent operational safety of such rope clamps.
  • the present invention is therefore based on the object of improving To create telescopic boom of the type mentioned, the disadvantages of Avoids prior art and further develops the latter in an advantageous manner.
  • a light and structurally simple bracing should be created be a simple, secure fixing of the guy ropes in the desired expired rope length and tensioning of the guy ropes allowed.
  • the guy cables that are running can be attached the guy supports locked in a form-locked manner in the respective extended position become.
  • the guy cables that are running are in accordance with the respective boom lengths Clearances, thickening pieces on the guy ropes and on the guy supports
  • Appropriate rope locks are provided, which with the thickening pieces the guy ropes can be brought into positive engagement.
  • the guy ropes are not on the guy supports via a corresponding winch or fixed a rope clamping mechanism, but positively by the said Rope lock held.
  • the deducted Rope length can be recorded exactly, so that the clamping at the right one Job is done.
  • Another problem is the risk of contamination, so that the clamping effect when the coefficient of friction changes over the course of the operating time changes, which can result in a considerable risk potential.
  • the solution of the cable lock according to the invention offers the Advantage of a light design.
  • the respective guy rope becomes exact held in the desired length by the fixed thickening pieces is specified.
  • the guy rope can preferably be in several predetermined lengths on the each guy support can be fixed.
  • each has the guy ropes several, spaced from each other at a predetermined distance Thickening pieces, wherein the cable lock is designed such that the each guy rope optionally with one or more of the thickening pieces can run over the cable lock or, if desired, with the respective one Thickening piece can go into the cable lock to be locked there.
  • the cable lock has a movable locking piece that goes in and out of the way of the running rope can be driven.
  • one can be pivoted Stored locking piece can be provided, which on the running guy rope can be pivoted and pivoted away from this.
  • an actuator can preferably use a pressure cylinder through which the locking piece of the cable lock can be pivoted accordingly.
  • the thickening pieces can be designed differently. After an advantageous Execution of the invention consist of the thickening pieces, the radial projections form on the rope, from clamping sleeves, which are pressed onto the guy rope are.
  • a drum provided as a rope storage a storage bottle, preferably in Arranged inside the guy supports, into which the respective guy rope is pulled can be.
  • the respective storage bottle is preferably multi-course to with the limited length of the respective guy support an adequate one To be able to accommodate guy rope length.
  • inside the Bracing supports are arranged in the end regions of several deflecting rollers the guy rope is guided accordingly when the telescopic boom in the Bring transport position and the guy rope is cleaned up accordingly.
  • the guy ropes are in a development of the invention at the ends of the guy ropes Auxiliary ropes attached, which are drawn into the storage bottle and on appropriate Auxiliary winches can be wound up.
  • the auxiliary rope is wound onto the auxiliary winch, see above that the guy rope is pulled into the storage bottle instead of the auxiliary rope.
  • the auxiliary rope can be considerably smaller and / or smaller in diameter its tensile strength may be weaker than the guy rope.
  • the auxiliary ropes are not used to absorb the tensioning forces. The latter are about the above called rope lock intercepted. When the guy ropes are fully extended the latter are no longer in the storage bottle, in which only the respective one Auxiliary rope is retracted.
  • the auxiliary winch for winding the corresponding Auxiliary ropes are preferably also arranged inside the guy supports.
  • this can pretensioning of the guy rope or guy ropes can be achieved, so that the bracing takes effect at a very early stage and the deflection of the boom is greatly reduced, especially when luffing jib operation can be.
  • the lateral deflection can be done by this novel Bracing can be significantly reduced.
  • the buckling bar is made up from laying and z. B. rocker at a very early stage or held.
  • the hydraulic cylinder allows considerable tension be put on the guy rope. It is understood that the biasing of the guy rope by means of the rope lock actuator regardless of the positive locking between the cable lock described above and brings special advantages to the thickening pieces.
  • guy rope could also be designed without thickening pieces and as a rope lock a frictionally acting rope clamp can be provided. Also at Frictional locking can be done by moving the cable lock of a hydraulic drive can be achieved. However, the is preferred previously described positive locking between rope lock and guy rope or the thickening pieces arranged thereon.
  • the cable lock is preferably in the form of a link Guided such that the cable lock along a first adjustment path section can be brought into and out of engagement with the guy rope and along an adjoining second adjustment path section in the longitudinal direction of the rope in locked state is movable.
  • the rope lock is first with a Movement component led across the rope to lock it. thereupon the rope lock is moved in the longitudinal direction of the rope when locked, to tension the guy rope. To relax the rope, do the reverse Direction. As soon as the rope lock in the first adjustment path section the guide, it is moved with a component of motion across the rope from drove this away.
  • the hydraulic cylinder of the actuator can be operated with its Piston rod pivoted to the guy support and with his Cylinders carry the rope lock and are guided in the backdrop-like guide his. If the hydraulic cylinder is retracted or extended relative to the piston rod, he follows the travel path specified by the guide. Basically would be it is of course also possible to swivel the hydraulic cylinder on the guy support articulate and guide the piston rod in the link guide. Farther it would be conceivable to use the lateral pivoting movement instead of the guide the hydraulic cylinder by another actuator. Prefers it is, however, to link the piston rod and the cable lock on the collar of the cylinder on which the piston rod emerges. This can a particularly compact arrangement can be achieved.
  • the guy supports can preferably be used be spread out in a v-shape, each of the guy supports by two separate pivot axes can be pivotally mounted. It can advantageously only one swivel cylinder was assigned to each of the guy supports be, with the help of which the respective guy support, if necessary, by its two Swivel axes is pivotable.
  • the guy supports are free of cross-connections with each other, d. H. there are no cross struts, lever mechanisms etc. between the guy supports intended.
  • the guy supports are only on their boom side End hinged to the respective boom section and with the associated Swivel cylinder connected. This results in a particularly simple structure the guy arrangement.
  • Figure 1 shows a mobile crane with a telescopic boom 1, which is on the vehicle rotatable about an upright axis of rotation and tiltable about a horizontal axis is articulated.
  • the telescopic boom 1 has an articulated shot 2, which in the mentioned way is articulated to the vehicle, and other telescopic shots 3 and 4, which can be telescoped out of articulation shot 2.
  • Guy 5 the telescopic boom 1 is guided over a pair of guy supports 6.
  • guy wires 7 lead from the free end of the guy supports 6 to the tip of the telescopic boom 1.
  • the guy supports 6 are in turn in the area of Intercepting end of articulation shot 2 intercepted.
  • the guy supports 6 are not connected to each other, but separately bolted to the side of the collar 9 of the articulation shot 2. They are at two each Swivel axes swivel so that they go from their parallel to the articulation 2 folded transport position raised and spread to the side can be so that the bracing both vertical and lateral forces can intercept.
  • each of the guy supports 6 is on a bearing bracket 10 articulated, which can be rigidly attached to the collar 9 of the articulation section 2.
  • the bearing brackets 10 are on opposite sides to the right and left of the articulation 2 attached.
  • the guy supports 6 are, so to speak, on the bearing brackets 10 articulated. You can rotate around two separate swivel axes 11 and 12 are pivoted on the console 10.
  • Figure 3 shows, extends a first pivot axis 11 substantially perpendicular to the vertical plane of longitudinal symmetry of the telescopic boom while the second pivot axis 12 extends parallel to the mentioned longitudinal plane of symmetry of the telescopic boom 1.
  • On the bearing bracket 10 is a bearing piece 13 about the first pivot axis 11 swiveling.
  • the guy support 6 is the second Swivel axis 12 hinged.
  • each of the pivot axes is a hydraulic cylinder 35 or 36 assigned.
  • each of the hydraulic cylinders is on the guy support and on the other hand articulated on the bracket 10 or the bearing piece 13, so that the guy support can be swiveled around the two swivel axes can.
  • the guy ropes 7 somewhat extended from the guy supports 6 and at the top of the telescopic boom or a collar of a telescopic shot or one placed on it Cross piece attached.
  • the guy ropes 7 are not on a winch on the respective guy support 6, but in a storage bottle 16 retracted inside the respective guy support 6.
  • Includes each storage bottle 16 two pulley blocks 17 and 18, each with several Deflection rollers, which are arranged in the respective guy support 6 approximately at the end are.
  • the multi-stranded nature of the storage bottle 16 ensures that sufficient Rope path is available.
  • the respective guy rope 7 is guided over a guide roller 19, from where it runs to the tip of the telescopic boom.
  • auxiliary rope 20 is preferably on an auxiliary winch 21 wound, which is arranged inside the guy support 6, like figure 7 shows.
  • a cable lock 22 is provided, on which the tensioning cable 7 is locked in a form-fitting manner can be.
  • the cable lock 22 comprises a pivotable locking piece 23, which extends transversely to the direction of the rope Swivel axis is pivotally hinged to the guy support steel structure. about a hydraulic cylinder 24, the locking piece 23 in the running guy rope 7 swung in or out of its barrel.
  • Figure 8 shows the pivoted position, while Figure 9 shows the pivoted, locking Position shows.
  • the locking piece 23 is preferably on its pull-side d. H. 9 left end, pivotally mounted, so that at a failure of the hydraulic cylinder 24 securely held the locked position becomes.
  • the locking piece 23 catches rope clamps pressed onto the guy rope 7 25 a, the thickening pieces and at predetermined intervals on Guy rope 7 are provided so that the guy rope is pulled out in different Lengths can be locked.
  • the locking piece 23 swung out of the rope run, so that if necessary pulled out with pull-out rope clamps 25 over the rope lock can be. If the rope clamp to be caught approaches the rope lock, the cable lock 22 is pivoted in. Catches when you pull out further the locking piece 23 the corresponding cable clamp 25 and comes with this positively engaged. This allows the guy rope to be placed in a precisely defined the desired length.
  • the boom is dismantled or dismantled into the transport position proceeded in reverse order. After luffing the boom in its steepest position and the folding of the guy supports can be done with the retraction of the guy rope are started.
  • the cable lock 22 To pull the rope in first unlocked the cable lock 22 again, d. H. the locking piece 23 pivoted become.
  • the auxiliary winch is first operated to thicken the rope pull out of the cable lock so that the cable lock can be opened. Then the boom is telescoped and the auxiliary winch 21 is operated to Auxiliary rope 20 wind up and thus the guy rope 7 in the storage bottle 16th collect.
  • a single hydraulic cylinder 15 may be provided, on the one hand on the guy support 6 and on the other boom-fixed, in particular on the bearing bracket 10, is articulated.
  • the hydraulic cylinder 15 articulated at its two ends pivotable.
  • a ball joint could be provided.
  • the hydraulic cylinder is preferably 15 gimbaled on both sides.
  • Each of the two pivot axes 11 and 12 is assigned a pivot axis lock, with the help of which the respective swivel axis can be blocked.
  • This can e.g. B. done by a hydraulically actuated locking bolt is not specifically shown in the drawing.
  • the locking can be done via appropriate Locking arms on the bearing piece 13 take place, the mobility block relative to the bearing bracket 10 or to the guy support 6.
  • figure 10 shows the locking arm 14 of the bearing piece 13 with which the bearing piece 13 fixed to the bearing bracket 10 and thus the pivotability about the first pivot axis 11 can be locked.
  • the guy supports are erected and spread as follows:
  • each of the guy supports 6 is first erected, d. H. around the pivot axis 11 pivoted into an upright position, as shown in Figure 5.
  • the Unlocked pivot axis 11 while the second pivot axis 12 is locked, or remains locked.
  • the guy support pivots 6 about the pivot axis 11 until it is erected as shown in FIG Position reached.
  • the first pivot axis 11 is locked. This can be done in that a locking bolt mounted on the bearing bracket 10 into the locking hole in the locking arm 14 of the bearing piece 13 retracts.
  • the locking arm 14 pivots when the guy support is erected in the appropriate position on the bearing bracket 10 so that it is there aligned with the locking bolt.
  • the cable lock 22 is not can only be swung in and swung out, but also in the longitudinal direction of the guy rope 7 movable to bias this.
  • the cable lock 22 here also includes a locking piece 23, which is form-fitting can be locked with a rope clamp 25 pressed onto the guy rope 7.
  • the Locking piece 23 can be moved by means of an actuator which in the drawn embodiment is designed as a hydraulic cylinder 30.
  • the locking piece 23 is rigidly attached to the hydraulic cylinder 30, more specifically on the collar portion of the cylinder 31 from which the piston rod 32 of the piston-cylinder unit 30 emerges.
  • the piston rod 32 is articulated at its end 33 to the steel structure of the guy support 6 hinged.
  • the cylinder 31 of the hydraulic cylinder unit is in a backdrop Guide 34 out, so that the cylinder 31 and attached to it Locking piece 23 travels a predetermined distance when the piston-cylinder unit 30 is operated.
  • the guide 34 comprises a first travel section 35, the transverse or more precisely oblique to the longitudinal direction of the guy rope 7th runs.
  • a second, adjoining travel path section 36 essentially runs parallel to the longitudinal direction of the guy rope 7.
  • the guide 34 is formed as a longitudinal groove-shaped recess in which the cylinder 31 with a Guide bolt can run.
  • the actuator arrangement shown is characterized by a particularly compact arrangement. Despite the cramped space can be arranged inside the guy support 6. It understands that the hydraulic guy rope pretension is basically also with a not on the guy support, but on the other end of the guy rope Rope lock could be effected. However, that is particularly preferred Arrangement of the cable lock on the guy support 6.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Jib Cranes (AREA)
EP03004656A 2002-06-05 2003-03-03 Flèche télescopique de grue Expired - Lifetime EP1369373B1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE20208740U DE20208740U1 (de) 2002-06-05 2002-06-05 Teleskopausleger eines Krans
DE20208740U 2002-06-05
DE2002157658 DE10257658A1 (de) 2002-12-10 2002-12-10 Teleskopausleger eines Krans
DE10257658 2002-12-10

Publications (3)

Publication Number Publication Date
EP1369373A2 true EP1369373A2 (fr) 2003-12-10
EP1369373A3 EP1369373A3 (fr) 2006-03-22
EP1369373B1 EP1369373B1 (fr) 2007-02-14

Family

ID=29550961

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03004656A Expired - Lifetime EP1369373B1 (fr) 2002-06-05 2003-03-03 Flèche télescopique de grue

Country Status (4)

Country Link
US (1) US7044315B2 (fr)
EP (1) EP1369373B1 (fr)
AT (1) ATE353849T1 (fr)
DE (1) DE50306471D1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7617943B2 (en) * 2004-06-22 2009-11-17 Liebherr-Werk Ehingen Gmbh Crane lattice boom and a crane
WO2019178067A1 (fr) * 2018-03-12 2019-09-19 Manitowoc Crane Companies, Llc Flèche de grue télescopique à broches
CN115465730A (zh) * 2022-10-01 2022-12-13 江苏斯佰柔电线电缆有限公司 一种线缆加工用的叉取机械臂及其使用方法

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Publication number Priority date Publication date Assignee Title
WO2004092490A1 (fr) * 2003-04-17 2004-10-28 Silvatech Global Systems Ltd. Mécanisme de pivotement d'estacade de répartition
US7309080B2 (en) * 2003-07-24 2007-12-18 Mein Gary W Extendable arm for a motor vehicle
AU2008238435B2 (en) * 2007-04-16 2014-05-29 Drs Sustainment Systems, Inc. Telescoping mast
US7618229B2 (en) 2007-06-27 2009-11-17 Deere & Company Boom lock for work machine and associated method
US8419335B1 (en) 2007-10-24 2013-04-16 T&T Engineering Services, Inc. Pipe handling apparatus with stab frame stiffening
US7918636B1 (en) 2007-10-24 2011-04-05 T&T Engineering Services Pipe handling apparatus and method
US8469648B2 (en) * 2007-10-24 2013-06-25 T&T Engineering Services Apparatus and method for pre-loading of a main rotating structural member
US7726929B1 (en) * 2007-10-24 2010-06-01 T&T Engineering Services Pipe handling boom pretensioning apparatus
US8128332B2 (en) 2007-10-24 2012-03-06 T & T Engineering Services, Inc. Header structure for a pipe handling apparatus
DE102007052954B3 (de) * 2007-10-31 2009-07-09 Terex Demag Gmbh Kran mit Teleskopausleger
US8408334B1 (en) 2008-12-11 2013-04-02 T&T Engineering Services, Inc. Stabbing apparatus and method
US9500049B1 (en) 2008-12-11 2016-11-22 Schlumberger Technology Corporation Grip and vertical stab apparatus and method
US8371790B2 (en) 2009-03-12 2013-02-12 T&T Engineering Services, Inc. Derrickless tubular servicing system and method
DE102009020338B4 (de) * 2009-05-07 2011-07-21 Manitowoc Crane Group France Sas Teleskopkran mit selbstmontierbarer Abspanneinrichtung und Montageverfahren für eine Abspanneinrichtung
US8192128B2 (en) * 2009-05-20 2012-06-05 T&T Engineering Services, Inc. Alignment apparatus and method for a boom of a pipe handling system
US9556689B2 (en) 2009-05-20 2017-01-31 Schlumberger Technology Corporation Alignment apparatus and method for a boom of a pipe handling system
CN101670984B (zh) * 2009-09-29 2012-06-06 长沙中联重工科技发展股份有限公司 单缸插销式伸缩臂轨迹的优化控制方法及控制系统
US9091128B1 (en) 2011-11-18 2015-07-28 T&T Engineering Services, Inc. Drill floor mountable automated pipe racking system
EP2690053B1 (fr) * 2012-07-24 2014-09-24 BAUER Maschinen GmbH Dispositif de sécurité pour un engin de construction.
US9476267B2 (en) 2013-03-15 2016-10-25 T&T Engineering Services, Inc. System and method for raising and lowering a drill floor mountable automated pipe racking system
CN103466468A (zh) * 2013-08-29 2013-12-25 三一汽车起重机械有限公司 超起装置的前拉紧装置、超起装置及工程机械
WO2015109294A1 (fr) 2014-01-20 2015-07-23 Manitowoc Crane Companies, Llc Système et procédé permettant de raccorder un ensemble suspension de grue à une colonne de support
EP3114070B1 (fr) * 2014-03-03 2019-05-08 Manitowoc Crane Companies, LLC Élément tendeur à longueur réglable
US11111115B2 (en) 2017-03-02 2021-09-07 Maniitowoc Crane Companies, LLC Wear pad with insert for telescoping boom assembly
NL2020319B1 (en) * 2018-01-25 2019-07-31 Cabin Air Group Bv Expandable Heavy Equipment, Elongated Pull Element, And Use Of Expandable Heavy Equipment

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Publication number Priority date Publication date Assignee Title
US4850161A (en) * 1987-11-30 1989-07-25 Mcginnis Henry J Extensible mast support system
DE10022658A1 (de) * 1999-06-28 2001-03-15 Mannesmann Ag Teleskopkran
DE20020974U1 (de) * 2000-12-12 2002-04-25 Liebherr Werk Ehingen Fahrzeugkran
EP1213254A1 (fr) * 2000-12-11 2002-06-12 Demag Mobile Cranes GmbH & Co. KG Flèche télescopique

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US981268A (en) * 1910-03-19 1911-01-10 Henry L Hurd Coal-tower-trolley-boom swinger.
DE3113763A1 (de) 1981-04-04 1982-10-28 Mannesmann AG, 4000 Düsseldorf "fahrzeugkran mit teleskopausleger"
DE20002748U1 (de) 2000-02-16 2000-08-03 Liebherr Werk Ehingen Fahrzeugkran
DE10129022B4 (de) 2001-06-13 2005-07-28 Terex-Demag Gmbh & Co. Kg Teleskopkran mit Superlifteinrichtung

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4850161A (en) * 1987-11-30 1989-07-25 Mcginnis Henry J Extensible mast support system
DE10022658A1 (de) * 1999-06-28 2001-03-15 Mannesmann Ag Teleskopkran
EP1213254A1 (fr) * 2000-12-11 2002-06-12 Demag Mobile Cranes GmbH & Co. KG Flèche télescopique
DE20020974U1 (de) * 2000-12-12 2002-04-25 Liebherr Werk Ehingen Fahrzeugkran

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7617943B2 (en) * 2004-06-22 2009-11-17 Liebherr-Werk Ehingen Gmbh Crane lattice boom and a crane
WO2019178067A1 (fr) * 2018-03-12 2019-09-19 Manitowoc Crane Companies, Llc Flèche de grue télescopique à broches
US11401135B2 (en) 2018-03-12 2022-08-02 Manitowoc Crane Companies, Llc Pinned telescoping crane boom
CN115465730A (zh) * 2022-10-01 2022-12-13 江苏斯佰柔电线电缆有限公司 一种线缆加工用的叉取机械臂及其使用方法
CN115465730B (zh) * 2022-10-01 2023-08-22 江苏斯佰柔电线电缆有限公司 一种线缆加工用的叉取机械臂及其使用方法

Also Published As

Publication number Publication date
EP1369373B1 (fr) 2007-02-14
US7044315B2 (en) 2006-05-16
ATE353849T1 (de) 2007-03-15
DE50306471D1 (de) 2007-03-29
EP1369373A3 (fr) 2006-03-22
US20040060887A1 (en) 2004-04-01

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