EP1321426B1 - Flèche télescopique - Google Patents

Flèche télescopique Download PDF

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Publication number
EP1321426B1
EP1321426B1 EP02090407A EP02090407A EP1321426B1 EP 1321426 B1 EP1321426 B1 EP 1321426B1 EP 02090407 A EP02090407 A EP 02090407A EP 02090407 A EP02090407 A EP 02090407A EP 1321426 B1 EP1321426 B1 EP 1321426B1
Authority
EP
European Patent Office
Prior art keywords
piston
cylinder
telescopic boom
cylinder system
locking
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
EP02090407A
Other languages
German (de)
English (en)
Other versions
EP1321426A1 (fr
Inventor
Erik Appel
Martin Bauer
Klaus Conrad
Michael Dammer
Jens Fery
Rolf Heintz
Steffen Holzer
Christoph Passmann
Mario Rübel
Sascha Scholz
Herbert Beckmann
Hansjuergen Linde
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.)
Terex Demag GmbH and Co KG
Original Assignee
Terex Demag GmbH and Co KG
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 Terex Demag GmbH and Co KG filed Critical Terex Demag GmbH and Co KG
Publication of EP1321426A1 publication Critical patent/EP1321426A1/fr
Application granted granted Critical
Publication of EP1321426B1 publication Critical patent/EP1321426B1/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
    • B66C23/705—Jibs constructed of sections adapted to be assembled to form jibs or various lengths telescopic telescoped by hydraulic jacks
    • 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
    • B66C23/708—Jibs constructed of sections adapted to be assembled to form jibs or various lengths telescopic locking devices for telescopic jibs

Definitions

  • the invention relates to a telescopic boom, in particular a telescopic boom for a mobile crane, with the features mentioned in the preamble of claim 1.
  • Telescopic booms with hydraulic telescoping systems have been around for many years known.
  • DE-A-198 24 672 a crane with a telescopic boom described.
  • the telescopic boom has a base box in which several Inner boxes are guided substantially coaxially with each other.
  • the inner boxes can successively by a hydraulic cylinder / piston system optionally on and be extended.
  • the hydraulic cylinder / piston system is here at one his two axial ends (foot area) fixed in the base box and with his extendable part by means of a coupling device to each to be moved Inner box can be coupled.
  • This coupling device is also called backup and Locking unit called.
  • the extendable part of the cylinder / piston system can optionally in the piston rod or in the hydraulic cylinder exist.
  • the inner boxes may each be in their retracted and in their extended position by one of the locking and locking unit operable Verbolzungs adopted opposite the next larger inner box or (in the case of the outermost inner box) with the Basic box of the telescopic boom are locked mechanically, so no relative shift against each other is more possible.
  • an inner box is the Verbolzungs adopted after coupling the Locking and locking unit unlockable by the latter.
  • the extension length of the hydraulic cylinder / piston system corresponds in this known solution of axial length of the longest inner box to be moved. In the extended Position is the length of the hydraulic cylinder / piston system thus virtually double so long.
  • the Austeleskopieren the individual inner boxes takes place in contrast to the Telescopic boom according to DE-A-198 24 672 in this solution not in a single Step, but in two steps.
  • the lower is first Locking and locking unit actuated and the respective inner box to about its half extended extension extended and locked in this intermediate position. Then the cylinder returns to its original position. Once this is reached, the upper locking and locking unit is in one Position about the position of the lower locking and locking unit on End of the first extension step corresponds.
  • the second backup and Locking unit is starting position back to the lower backup and Locking unit to grab the next inner box.
  • the time needed for that Extending an inner box is almost the same as with this telescopic boom in the telescopic boom according to DE-A-198 24 672.
  • Object of the present invention is to provide a telescopic boom further develop generic type such that at the lowest possible Weight for the drive system The time for the extension of an inner box in his maximum extension position is significantly shortened.
  • the present invention is based on a telescopic boom, in particular for Mobile cranes is provided and has a base box in which one or more Inner boxes are guided substantially coaxially with each other. These inner boxes are successively by a first hydraulic cylinder / piston system either on or extendable, with this hydraulic cylinder / piston system on one of its two axial ends (foot region, i.e. lower in the working position of the telescopic boom End) is fixed in the base box and with its extendable part by means of a preferably designed as a safety and locking unit first Coupling device can be coupled to the respective inner box to be moved. Of the respective inner box is in its retracted and in its extended position each by a e.g.
  • the invention provides that parallel to the first hydraulic cylinder / piston system a second hydraulic Cylinder / piston system is arranged, which also with one of his two axial ends is fixed in the base box and with its extendable part by means of a second, e.g.
  • the extendable length of the two cylinder / piston systems each chosen significantly smaller than the extendable length of the respective inner box and the respective inner box by means of the first hydraulic cylinder / piston system from the retracted position over a first portion of the entire extendable length of the inner box and by means of the second hydraulic Cylinder / piston system over a second section of the entire extendable length of the inner box is movable to its end position.
  • the extendible length of the two cylinder / piston systems in the range of about 40% - 60%, in particular at about 50% of the largest extendable length of an inner box.
  • the upper locking and locking unit can in the Ankoppelstelle engage, release the lock again and place the inner box in the desired position Move end position and settle there, i. again with the next larger one Inner box or the outermost inner box lock it with the basic box. But it can also be provided to a lock in the intermediate position dispense if for the upper and lower locking and locking unit each separate coupling points are provided. In this case, though be sure that the lower locking and locking unit only from can decouple the respective inner box when the upper security and Locking unit has already docked and the lock in the unlocked Holding position. This can be done by the control of the hydraulic system, preferably a Digital control, be guaranteed.
  • the invention provides that both Cylinder / piston systems each as coupling devices via two fuse and Locking units, one in the foot area and the other in the Head area of the respective cylinder / piston system (relative to the retracted Position) is arranged.
  • mating mode finds then the previously described procedure instead, in each case during the Working strokes of a cylinder / piston system over the intended section of the total extension length of each inner box of the idle stroke of the other Cylinder / piston system is executed to largely eliminate dead times.
  • the respective inner box after intervention both in the foot area arranged locking and locking units, for example, to about 50% of Box length telescoped. Then both cylinder / piston systems drive back in their starting position back and leave their upper security and Coupling locking units and move the inner box into each desired basic position, for example at 90% or 100% of the maximum Extension length is. Of course, the inner box remains during the idle stroke in locked in its intermediate position.
  • the invention provides that the two Cylinder / piston systems have different diameters, so on different hydraulic power are designed.
  • the two can Cylinder / piston systems are arranged horizontally next to each other, but there in the Generally the profile cross sections of telescopic jibs in vertical direction (height) are larger than in the horizontal direction (width), it is recommended, the two Cylinder / piston systems to arrange one above the other, preferably the cylinder / piston system with the smaller diameter over the cylinder / piston system with the larger diameter.
  • the two cylinder / piston systems supported by slide rails on each other.
  • the cylinder / piston systems each with its cylinder in the Base box to fix and the piston rod as a moving part of the cylinder / piston system to work.
  • This brings advantages in terms of attachment of the Supply lines for the pressure medium supply of the hydraulic cylinder.
  • the reverse is also possible and brings advantages in other respects.
  • a movable hydraulic cylinder can namely easily in the head and Foot area, if required, the required locking and locking units be attached. Therefore, an arrangement in which the a cylinder / piston system with its hydraulic cylinder and the other Cylinder / piston system is fixed with its piston rod in the base box.
  • a locking and locking unit in the foot area of the cylinder / piston system to couple with the extendable piston rod.
  • a pull frame can be used which is connected to the free end of the piston rod and parallel to Longitudinal axis extends to the foot of the cylinder / piston system. In this case is spoken of a Switzerlandrahmenbauweise.
  • An advantageous embodiment of the invention provides that the two Cylinder / piston systems are each designed for different Teleskopierkraft. This can be realized in such a way that the first cylinder / piston system a smaller diameter than the second cylinder / piston system and with his Cylinder fixed in the base box and with respect to its single safety and Locking unit is executed in Switzerlandrahmenbauweise and that the second Cylinder / piston system with its piston rod fixed in the base box and its only Locking and locking unit at the upper end of its extendable cylinder is attached.
  • the first cylinder / piston system therefore takes over the first one Sub-step of the extension movement for an inner box. This is generally significantly less hydraulic power needed than for the second step of the Extension movement. Therefore, the smaller cylinder / piston system for the first and the larger used for the second sub-step.
  • FIG. 1 cross-section through a Inner box 3 of a telescopic boom not shown in detail otherwise shows in its interior two vertically stacked hydraulic cylinder / piston systems 7, 8, each with a locking and locking unit 12, 15th are equipped.
  • the locking and locking units 12, 15 by means of coupling elements 20 and 21, in the internals 23 of the inner box 3 can engage, can be coupled to the inner box 3, so that this in the direction the longitudinal axis of the inner box by the cylinder / piston systems 7, 8 slidably is.
  • the cylinder / piston systems 7, 8 are guided by a guide 32.
  • Fig. 2 is a similar cross-sectional view in principle by an inner box 3, in which, in contrast to FIG. 1 is merely provided that the two cylinder / piston systems 7, 8 are arranged horizontally next to each other.
  • Fig. 4 which has an axial cross section through two inner boxes 3, 4 of the in Fig. 3 in Form of two longitudinal sections shown telescopic boom 1 reproduces are more Details recognizable. It can be seen that the inner box 3 via plain bearings 28, 29, with Feeders are provided for lubricants, sliding against the next larger Inner box 4 is supported. Of the two securing and locking units 12, 15 are each only the coupling elements 20, 21 can be seen, the pairs together are arranged opposite one another. These bolt-shaped coupling elements 20, 21 can engage in corresponding Ankoppelö réelleen 24 and 25, which are in lateral wall-mounted internals 23 are located. The actuation of the coupling elements 20, 21, which is not shown here, for example, mechanical, electrical, pneumatic or hydraulically. Locking bolts are in this section as little as the means for actuating the locking bolt shown. But you realize, that the two cylinder / piston systems 7, 8 via slide rails 26, 27 on each other and are supported against the inner box 3.
  • Fig. 3 which are guided by a telescopic boom 1, show the innermost inner box 3 in an approximately half-extended intermediate position (upper illustration) or in the fully extended end position (lower illustration).
  • Telescopic boom 1 has a base box 2, which at its foot a Swivel bearing 18 has, with the telescopic boom 1 to a horizontal Swivel axis is tiltable.
  • the rocking motion is by means of a not shown hydraulic rocker cylinder running on the uppercarriage, not shown a vehicle crane can be stored and with its extendable part in a warehouse 19 can be hinged to the bottom of the base box 2.
  • the telescopic boom 1 has in addition to the inner box 3, three more inner boxes 4, 5, 6, in corresponding manner as the inner box 3 austeleskopierbar and by reversing the Workflows is einteleskopierbar in a corresponding manner. Furthermore, it can be seen that the two cylinder / piston systems 7, 8 parallel to the longitudinal axis of Telescopic boom 1 are arranged. As clear from the sectional view of FIG. 4 As can be seen, the upper cylinder / piston system 7 has a slightly lower Diameter than the lower cylinder / piston system 8, so that the former at the same Hydraulic pressure developed a correspondingly lower hydraulic power. The Cylinder / piston system 7 is with its cylinder 9 via a fastening 16 at the foot of the Basic box 2 stationary stored in this.
  • the piston rod 10 of the cylinder / piston system 7 is fully extended in the upper partial view of FIG. 3. she wears at its free (left) end a pull frame 11, which is towards the foot end extends the boom 1 and at its lower (right) end of the fuse and Locking unit 12 carries, with the cylinder / piston system 7 to the inner box 3 is coupled. The lower end of the inner box 3 is thus in the range of Locking and locking unit 12. Seen at the same height in the axial direction is also the locking and locking unit 15 of the second Cylinder / piston system 8, its cylinder with 13 and its piston rod with 14 is designated.
  • This cylinder / piston system 8 is connected to the lower end of Piston rod 10 fixed by means of a fastening 17 at the bottom of the base box 2, so that the cylinder 13 represents the extendable part of this cylinder / piston system 8.
  • the second securing and locking unit 15 is attached. In the reproduced in the upper position position so the Inner box 3 by the securing and locking unit 15 to the other Locking and locking unit 12 are passed, so another Extending the inner box 3 by means of the second hydraulic cylinder / piston system 8 is possible.
  • the lower illustration of FIG. 3 gives the final state for this Extending again, in which the inner box 3, the still on the backup and Locking unit 15 is coupled, is in its final position.
  • Fig. 5 is similar in three schematic representations as in Fig. 3 as a longitudinal section Boom 1 shown, the two cylinder / piston systems 7, 8, however, each with two locking and securing units 12a, 15a and 12b, 15b are provided.
  • a first upper securing and locking unit 15 a is at the head end of the cylinder thirteenth the cylinder / piston system 8 and a first lower backup and Locking unit 12 a arranged at the foot of the cylinder 13.
  • the other one Cylinder / piston system 7 is a pull frame 11 at the head of the extendable Piston rod 10 is mounted, with the pull frame 11 up to the foot of the Cylinder / piston system 7 (in the retracted state) extends and there with a second lower securing and locking unit 12 b is provided while a second upper locking and locking unit 15b at the head of the extendable Piston rod 10 is arranged.
  • the three partial views of FIG. 5 show the case that the cylinder / piston systems 7, 8 to achieve a maximum Teleskopierkraft in Synchronous operation are operated. In the upper illustration, both have cylinder / piston systems 7, 8 with their lower securing and locking units 12a, 12b the innermost inner box 3 extended to half the extended position.
  • the present invention makes it possible to Teleskopier representatives for a telescopic boom realize that correspond largely to those times that at a Fully hydraulic telescopic system can be achieved. At the same time, however, a clear Weight reduction possible for the hydraulic system to be used.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Jib Cranes (AREA)
  • Actuator (AREA)
  • Vehicle Cleaning, Maintenance, Repair, Refitting, And Outriggers (AREA)
  • Forklifts And Lifting Vehicles (AREA)

Claims (14)

  1. Flèche télescopique, en particulier flèche télescopique (1) pour une grue mobile, comportant un caisson de base (2) dans lequel un ou plusieurs caissons intérieurs (3 - 6) sont guidés les uns dans les autres essentiellement de façon coaxiale, lesquels peuvent être au choix sortis ou rentrés les uns après les autres par un premier système hydraulique à piston et cylindre (7), le premier système hydraulique à piston et cylindre (7) étant fixé à l'une de ses deux extrémités axiales (zone de pied) dans le caisson de base (2) et pouvant être accouplé avec sa partie pouvant être sortie au caisson intérieur (3 - 6) à déplacer au moyen d'un premier dispositif d'accouplement (unité d'arrêt et de verrouillage 12), et le caisson intérieur (3 - 6) concerné pouvant être verrouillé dans sa position rentrée et dans sa position sortie par rapport au caisson intérieur immédiatement supérieur (4 - 6) ou par rapport au caisson de base (2) et pouvant être déverrouillé après la réalisation de l'accouplement juste avant le déplacement,
    caractérisée en ce qu'il est agencé, parallèlement au premier système hydraulique à piston et cylindre (7), un second système hydraulique à piston et cylindre (8), lequel est également fixé dans le caisson de base (2) avec l'une de ses deux extrémités axiales et peut être accouplé avec sa partie pouvant être sortie au caisson intérieur (3 - 6) à déplacer au moyen d'un second dispositif d'accouplement (unité d'arrêt et de verrouillage 15), et en ce que les deux systèmes à piston et cylindre (7, 8) peuvent être actionnés en mouvement contraire.
  2. Flèche télescopique selon la revendication 1,
    caractérisée en ce que les deux systèmes à piston et cylindre (7, 8) peuvent au choix être également actionnés en mouvement synchronisé et peuvent être accouplés en même temps au même caisson intérieur (3 - 6).
  3. Flèche télescopique selon l'une des revendications 1 ou 2,
    caractérisée en ce que la longueur déployable de chacun des deux systèmes à piston et cylindre (7, 8) est nettement inférieure à la longueur déployable de chaque caisson intérieur (3 - 6) et en ce que chaque caisson intérieur (3 - 6) peut être déplacé au moyen du premier système hydraulique à piston et cylindre (7) hors de la position rentrée sur un premier tronçon partiel de la longueur déployable totale du caisson intérieur (3 - 6) et au moyen du second système hydraulique à piston et cylindre (8) sur un second tronçon partiel de la longueur déployable totale du caisson intérieur (3 - 6) jusque dans sa position de fin de course.
  4. Flèche télescopique selon la revendication 3,
    caractérisée en ce que la longueur déployable des deux systèmes à piston et cylindre (7, 8) est comprise entre 40 % et 60 % de la plus grande longueur déployable d'un caisson intérieur (3 - 6), en particulier égale à 50 % de cette longueur.
  5. Flèche télescopique selon l'une des revendications 1 à 4,
    caractérisée en ce que chaque système à piston et cylindre (7, 8) dispose de deux unités d'arrêt et de verrouillage (12a, 15a et 12b, 15b) comme dispositif d'accouplement, dont l'une est agencée dans la zone de l'une des extrémités axiales (zone de pied) et l'autre dans la zone de l'autre extrémité axiale (zone de tête) du système à piston et cylindre (7, 8) (en position rentrée).
  6. Flèche télescopique selon l'une des revendications 1 à 4,
    caractérisée en ce que chacun des deux systèmes à piston et cylindre (7, 8) est pourvu d'une seule unité d'arrêt et de verrouillage (12, 15) comme dispositif d'accouplement, laquelle est mobile dans le sens axial et peut être bloquée aux deux extrémités du système à piston et cylindre (7, 8) concerné.
  7. Flèche télescopique selon l'une des revendications 1 à 4, caractérisée en ce que chacun des deux systèmes à piston et cylindre (7, 8) est pourvu d'une seule unité d'arrêt et de verrouillage (12, 15) comme dispositif d'accouplement, dont, dans l'état rentré, l'une est agencée dans la zone d'une extrémité axiale (zone de pied) du système à piston et cylindre (7) et l'autre (15) dans la zone de l'autre extrémité axiale (zone de tête) de l'autre système à piston et cylindre (8).
  8. Flèche télescopique selon l'une des revendications 1 à 6,
    caractérisée en ce que les deux systèmes à piston et cylindre (7, 8) sont configurés pour une force de télescopage différente et présentent un diamètre différent.
  9. Flèche télescopique selon l'une des revendications 1 à 8,
    caractérisée en ce que les deux systèmes à piston et cylindre (7, 8) sont agencés l'un au-dessus de l'autre par rapport au plan de charge de la flèche télescopique.
  10. Flèche télescopique selon les revendications 8 et 9,
    caractérisée en ce que le système à piston et cylindre (7) ayant le diamètre le plus petit est agencé au-dessus du système à piston et cylindre (8) ayant le diamètre le plus grand.
  11. Flèche télescopique selon l'une des revendications 1 à 10,
    caractérisée en ce que les deux systèmes à piston et cylindre (7, 8) sont appuyés l'un sur l'autre, notamment par l'intermédiaire de glissières (26).
  12. Flèche télescopique selon l'une des revendications 3 à 11, caractérisée en ce que l'un au moins des systèmes à piston et cylindre (7, 8) est fixé avec son cylindre (9, 13) dans le caisson de base (2) et en ce que la tige de piston (10, 14) forme la partie mobile du système à piston et cylindre (7, 8).
  13. Flèche télescopique selon la revendication 12,
    caractérisée en ce que l'unité d'arrêt et de verrouillage (12) du premier système à piston et cylindre (7) est fixée à un cadre de traction (11) qui est couplé à l'extrémité pouvant être sortie de la tige de piston (10) et s'étend, dans la position rentrée, le long du cylindre (9) jusque dans la zone de pied du cylindre (9) (construction à cadre de traction).
  14. Flèche télescopique selon la revendication 3 et l'une des revendications 8 à 11,
    caractérisée en ce que le premier système à piston et cylindre (7) présente un diamètre inférieur au second système à piston et cylindre (8) et est fixé avec son cylindre (9) dans le caisson de base (2) et est réalisé suivant une construction à cadre de traction en ce qui concerne son unique unité d'arrêt et de verrouillage (12) et en ce que le second système à piston et cylindre (8) est fixé avec sa tige de piston (14) dans le caisson de base (2) et son unique unité d'arrêt et de verrouillage (15) est fixée à l'extrémité supérieure de son cylindre (13) pouvant être sorti.
EP02090407A 2001-12-21 2002-12-17 Flèche télescopique Expired - Lifetime EP1321426B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10164600A DE10164600C2 (de) 2001-12-21 2001-12-21 Teleskopausleger
DE10164600 2001-12-21

Publications (2)

Publication Number Publication Date
EP1321426A1 EP1321426A1 (fr) 2003-06-25
EP1321426B1 true EP1321426B1 (fr) 2005-03-16

Family

ID=7711225

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02090407A Expired - Lifetime EP1321426B1 (fr) 2001-12-21 2002-12-17 Flèche télescopique

Country Status (4)

Country Link
EP (1) EP1321426B1 (fr)
JP (1) JP2003212479A (fr)
AT (1) ATE290992T1 (fr)
DE (2) DE10164600C2 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITBO20100120A1 (it) * 2010-03-01 2011-09-02 Sol Ge S P A Gru per il sollevamento di un carico.
JP2022084003A (ja) * 2020-11-25 2022-06-06 タダノ デマグ ゲーエムベーハー 基本伸縮ジブおよび追加伸縮ジブを有する移動式クレーンの伸縮ジブシステム、および対応する方法
DE102021119612A1 (de) 2021-07-28 2023-02-02 Liebherr-Components Kirchdorf GmbH Verriegelungskopf

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4433515A (en) * 1981-11-04 1984-02-28 Kidde, Inc. Remotely operable latch and locking pin for a multi-section boom including a manual fly section
US4688690A (en) * 1986-03-07 1987-08-25 Harnischfeger Corporation Method and apparatus for extending fly section of crane boom
DE19616167A1 (de) * 1996-04-11 1997-10-16 Mannesmann Ag Teleskopausleger, insbesondere für stationäre oder fahrbare Krane
DE19824672A1 (de) * 1997-05-28 1998-12-03 Mannesmann Ag Kran mit einem Teleskopausleger
DE29912814U1 (de) * 1999-07-22 1999-12-02 Bürkert Werke GmbH & Co., 74653 Ingelfingen Zapfsystem für Tanksäulen
EP1072554B1 (fr) * 1999-07-30 2004-03-17 Liebherr-Werk Ehingen GmbH Grue à flèche téléscopique

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Publication number Publication date
JP2003212479A (ja) 2003-07-30
ATE290992T1 (de) 2005-04-15
DE50202471D1 (de) 2005-04-21
DE10164600A1 (de) 2003-07-10
EP1321426A1 (fr) 2003-06-25
DE10164600C2 (de) 2003-12-11

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