EP1213254B1 - Flèche télescopique - Google Patents

Flèche télescopique Download PDF

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Publication number
EP1213254B1
EP1213254B1 EP01250427A EP01250427A EP1213254B1 EP 1213254 B1 EP1213254 B1 EP 1213254B1 EP 01250427 A EP01250427 A EP 01250427A EP 01250427 A EP01250427 A EP 01250427A EP 1213254 B1 EP1213254 B1 EP 1213254B1
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EP
European Patent Office
Prior art keywords
telescopic jib
tensioning
jib according
container
bracing
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
EP01250427A
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German (de)
English (en)
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EP1213254A1 (fr
Inventor
Michael Dipl.-Ing. Irsch
Walter Dipl.-Ing. Stowasser
Frank Dipl.-Ing. Conrad
Oliver Dr.-Ing. Fries
Jens Dipl.-Ing. Fery
Roland Dipl.-Ing. Kuhn
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.)
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Publication date
Application filed by Terex Demag GmbH and Co KG filed Critical Terex Demag GmbH and Co KG
Publication of EP1213254A1 publication Critical patent/EP1213254A1/fr
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Publication of EP1213254B1 publication Critical patent/EP1213254B1/fr
Anticipated expiration legal-status Critical
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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
    • B66C23/82—Luffing gear
    • B66C23/821—Bracing equipment for booms
    • B66C23/823—Bracing equipment acting in vertical direction
    • 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

Definitions

  • the invention relates to a telescopic boom, in particular for a Mobile crane is provided according to the preamble of claim 1.
  • the Telescopic boom has a basic box that on the superstructure of the Mobile crane is articulated. In the basic box there are several out and telescopic shots (inner boxes) guided. On the back of the Basic box is preferably in the vicinity of the pivot point of the rocker cylinder Guy bracket mounted, the free end of two side by side rear Bracing with the foot area of the basic box, i.e. its (in the lifting position) lower end is connected. The rear guying is indicated by a Fixed length rope formed.
  • the free end of the guy stand is through two adjacent guy lines with the head of the innermost or connected to the collar of a telescoped inner box.
  • the tension cables are each with one end at the free end of the Tensioning brackets are attached and are each attached to the headpiece via a pulley Collar of a telescoped inner box back to the guy stand and over one further pulley, which is arranged at the free end of the guy stand, for Winch led.
  • the desired tractive force in the respective tension rope can be set by corresponding setting of the rope length unwound from the winch is influenced become.
  • the two winches are non-positive or positive locked.
  • the two are provided rear bracing in the form of a common rope that over a Deflection pulley is guided by a hydraulic in the foot area of the basic box Pull cylinder is held so that depending on the extended length of the pull cylinder Guy frame, which is rotatably mounted on the basic box by a small angle can be pivoted.
  • the tensile force in the Tension ropes of the front guying influenced.
  • bracing is to see the deflection of the limit telescopic boom under load.
  • Arrangement of the stays can be done if the tensile forces are independent are influenceable from each other, to a certain extent also lateral forces that arise balance the telescopic boom in the form of a wind load, i.e. Reduce lateral deformation.
  • a mobile crane with a telescopic boom is known from DE 196 06 109 A1, who also has a guy stand with a winch on his back the one from the top of the guy stand to the head of the innermost one Telescopic shot or a collar of another telescoped Telescopic shot extending guy rope is tensioned.
  • the winch is in the Area of the tip of the guy stand arranged.
  • To the rear is the Guy rack through a rope or through a linkage of predetermined length braced against the foot area of the basic box.
  • Another mobile crane that has a telescopic boom with one on its back Having erected guy stand is known from EP 0 334 187 A1. Outdoors At the end of the guy stand there are several rope pulleys at a distance from each other aligned axes stored. In the area of the upper end of the telescopic boom are also arranged pulley pulleys, which are mounted in a frame, which is in turn connected to the end of the boom by means of tethers. In the foot area of the A cable winch is arranged in the basic box of the telescopic boom.
  • the tensioning cable runs from the winch over one of the Deflection rollers at the free end of the guy stand to the deflection rollers in the area of upper end of the telescopic boom and back from this over another Deflection roller on the guy stand to a fixed point in the foot area of the Basic box, which is opposite the winch.
  • the guy rope between two pulleys of the guy stand is cut in a loop-like manner in that there is a gap between these pulleys Deflection idler runs.
  • This idler pulley is mounted in a bearing block, the articulated with the upper end of the piston rod of a pressure medium cylinder connected is.
  • the hitherto usual guy systems for telescopic booms regularly show at least one, often two winches. These winches do not require only a considerable amount of construction work, but often also require installation space that is not available under certain conditions, especially when the Cable winches are to be arranged on the side of the basic box. This room will namely needed, for example, if a foldable additional boom on the side Basic box of the telescopic boom is to be carried. There is therefore a Need for a guy system that is as inexpensive to manufacture and little space is required in areas of the boom, which is often different from others Additional equipment is occupied.
  • Telescopic boom with the in claim 1 specified features. This is due to the characteristics of the subclaims Telescopic boom can be further configured in an advantageous manner.
  • the invention is based on a telescopic boom with the in the generic term
  • the present invention goes a completely new way and dispenses entirely on the use of one or more winches for such anchoring, which is required to increase the permissible load in the telescoped state and is also known as a superlift.
  • the front guy is no longer through a "variable length" rope is formed, i.e.
  • the invention provides the front guying along its length essentially by a number interconnectable or connected tension elements, each with a fixed length form, the fixed lengths of the tension elements are dimensioned so that predetermined discrete extension lengths of the telescopic boom a specific Corresponds to the number of tension elements.
  • tension elements With modern mobile cranes There are generally only a certain number of telescopic booms Extending positions of the telescopic boom, in which its individual shots are locked together and the telescopic boom is ready to take up the load.
  • the individual tension elements are therefore divided in length so that for each Extension length (locking position) of the telescopic boom a certain number of tension elements is required, the length of which is the sum of the length of the required front guying corresponds.
  • a separate clamping device is preferably provided either as a variable short link in the front or rear or can be arranged in both parts of the guying or as Device for changing the length of the guy stand is formed and thus its height and thereby affects the tensioning forces. If those Tensioning device is arranged in the front guy, then its length of course when dividing the appropriate lengths of the tension elements considered. If the variable length link in the rear Bracing is provided, then the steep position of the Guy frames on the back of the base box, preferably in the range of 90 °, changed as soon as the pontic is set to a different length. This changes the tensile force in the front in a corresponding manner Guying. Alternatively, it can also be provided that the desired tensile force in the Guying without a separate tensioning device by the To extend telescopic the boom.
  • the tension elements of the front guying can be of any nature his.
  • Tension elements made of bars or narrow are particularly preferred Sheet metal strips (heavy plates) and also from pipes (e.g. telescopic pipes) round or rectangular cross-section or other hollow profiles or from open Profiles.
  • Such tension elements have the property of a comparatively large one Dimensional stability across the longitudinal axis.
  • tension elements for the front Bracing usable according to the present invention which for example consists of Rope pieces or discrete chain lengths are formed and therefore no dimensional stability have transverse to the longitudinal axis.
  • Different tension elements can also be used be combined with each other, for example a piece of rope with a number of Drawbars.
  • the tension elements of the front bracing are expediently form-fitting coupled to each other. This can be done using a variety of coupling devices be realized. For example, it can be bolt connections or mechanical Act attacks, but it can also be pocket-like or hook-like Connections may be provided.
  • the invention is not specific Coupling device limited.
  • the invention provides that the tension elements A flat, rectangular cross-section over the major part of its length have (e.g. flat iron) and that molded retaining pins on each end are on the narrow sides of the rectangular cross section of the tension element Increase the width to extend outwards. Furthermore, this one Embodiment provided that at the other end of each A driver device is integrally formed on the traction element, which in its side areas is pocket-shaped recesses into which the tensile load Holding pin of the immediately adjacent tension element form-fitting can intervene. In this way, the individual tension elements can be combined into one Connect contiguous strand of the intended length of the front Bracing corresponds.
  • the tension elements A flat, rectangular cross-section over the major part of its length have (e.g. flat iron) and that molded retaining pins on each end are on the narrow sides of the rectangular cross section of the tension element Increase the width to extend outwards.
  • this one Embodiment provided that at the other end of each A driver device is integrally formed on the traction element, which
  • the invention preferably sees before that the traction elements are pushed into one another or are placed side by side or one above the other or folded. So that's one compact storage of the individual pulling elements for easy transport possible.
  • the container is expediently designed such that it itself is a tension element the front guying forms, so in this also with regard to the supporting function is fully integrated. In this case, it is advisable to use the container Connect the tensioning device to the free end of the guy stand.
  • the tension elements are arranged so that they through the Telescopic the inner boxes of the telescopic boom out of the container are extractable. But it can also be provided that a separate Extension or extension device is installed, which is independent of the drive for the Telescoping the inner boxes works.
  • the telescopic boom with a device that it allows the number of connected to each other during telescoping Tension elements, i.e. to fix the effective length of the guy.
  • a locking device at the outlet of the container to arrange, which, when actuated, blocks the pulling out of further pulling elements (or only possible in the open position).
  • Such a locking device can with a stop that can be moved transversely to the direction of tension of the tension elements be provided, in particular with one at the front and rear ends of the Driver device attacking stop. In the latter case, this not only pulling out further pulling elements, but also inserting the pulled elements blocked.
  • an insertion device is formed as an encircling chain or band or rope, the or which is or are provided with driver devices for the tension elements.
  • the insertion device can also be designed in the form of tension springs be arranged between two adjoining tension elements, with one end on one traction element and the other end on the other tension element are attached and when pulling out the tension elements each be elongated. When retracting the telescopic boom would be by the spring force the individual pulling elements are withdrawn.
  • the insertion or Extending device can also, for example, by a rack profile the respective pulling element and a corresponding drivable pinion are formed, which engages in the rack profile and fastened in the area of the container is.
  • the invention provides one Slide-in device, which can also be used as a slide-out device if required could be, which has a friction wheel drive.
  • the tensioning device as required in the front or rear or in both Part of the guying is used as a tensioning cylinder (preferably operated hydraulically).
  • a tensioning cylinder preferably operated hydraulically
  • it could a motor-driven spindle drive can also be used.
  • the invention is not limited to special fixtures. If the jig in Shape of a device for changing the length of the guy stand, can, for example, hydraulic cylinder drives or motor driven spindle drives are used.
  • guy lines are preferably also attached to one another in the form Poles or the like used.
  • the tensile force preferably can be set independently of one another using separate clamping devices.
  • the Clamping bracket is then with separate articulation points for the opposite provided front and rear bracing or, for example, from in advance in two opposite each other with respect to the longitudinal axis of the boom Split bucks. In this way, the bracing can also be used Affect the lateral stability of the telescopic boom.
  • the guy stand is attached to the basic box via a swivel joint connected to the telescopic boom so that it is removed during transport Condition can be easily folded onto the telescopic boom. It is advantageous if the container for the tension elements with the Guy rack can be folded to the telescopic boom.
  • At least one tension element an adjustable length to accommodate manufacturing tolerances and others Compensate influences on the effective length of the guy.
  • the latter happens in the disarmed, i.e. unloaded state of the guying, so that during the Telescopic the boom also this tension element has a fixed length
  • the adjustment of the length of the tension element can be achieved in that the Traction element is carried out in two sections, for example Screw connections, that is detachable at their ends in different positions are interconnectable (connection in elongated holes or alternatively usable Through holes for the screws).
  • the telescopic boom 1 shown in Fig. 1 has a basic box 2 and two telescoped inner boxes 3, 4.
  • a guy stand 5 is erected perpendicular to the longitudinal axis of the telescopic boom 1.
  • This guy stand 5 is shown schematically in the form of two columns.
  • the Attachment to the back of the base box 2 is not shown, but will preferably carried out in the form of a swivel joint. From the foot area 7 of the Basic box made in the form of a rod or a rope with a fixed Length of a rear guying 6, which at the free end 8 of the guy stand 5 is articulated.
  • a front guy 9 runs to Head piece 10 of the innermost telescoped inner box 4 and is fastened there (e.g. via bolt connection).
  • the front guy 9 consists of a certain number of tension elements, which are discussed in more detail below is, and from a container 17 for these tension elements and one as a hydraulic Clamping cylinder 26 trained clamping device.
  • the Bracing instead of on the head 10, the Bracing also with a collar 11 of another telescopic shot be connected to the telescopic boom.
  • the collar of the basic box is 12 designated.
  • FIG. 2 From Fig. 2 it can be seen that the container 17 with the contained therein Tension elements 13 between the pillars of the guy stand 5 in folded, so disarmed state can find space.
  • the Tensioning cylinder 26 is directly connected to the container 17 on one side and coupled with its other side to the free end of the guy bracket 5. The latter can only be seen from FIG. 1.
  • the traction elements 13, which are also used to distinguish between individual elements 13a - n are shown in more detail. According to a preferred one Embodiment of the invention, these tension elements 13 are essentially in shape narrow thick-walled sheets formed, so have over the majority of their Length a rectangular cross section.
  • Fig. 5 shows that one end at one Traction element 13i is provided with lateral holding pins 14, the thickness of the rectangular profile of the tension element 13i increases towards the end.
  • the holding pin 14 are advantageously cylindrical in the present case. You could but in principle also have a different cross-sectional shape.
  • FIG. 6 The other end of a tension element is shown in FIG. 6 using the example of the tension element 13k shown separately.
  • This end is provided with a driver device 15 which is arranged at a widening of the end of the tension element 13k.
  • the driver device 15 each have a thick-walled and Sheets standing vertically to the plane of the flat tension element 13k, into which on the Pocket-like recesses 16 are incorporated on the inside.
  • the retaining pin 14 in these pocket-shaped recesses 16 engage, so that the tensile load two tension elements 13i and 13k are positively connected to one another.
  • pocket-shaped recesses 16 act like two in parallel mutually lying hooks which engage behind the holding pins 14.
  • the Traction elements 13a - n of which a total of 6 pieces are shown in Fig. 10, in disarmed state stacked one above the other in the container 17. So this stacking are safely preserved, are on the inside between the side panels of the Driver device 15 securing pins 27 are provided, which prevent a Traction element 13i can separate from the next traction element 13k if it is still there does not engage in the driver device 15 via the retaining pins.
  • FIGS. 7 and 8 each show one as a friction wheel drive with the two friction wheels 23 and 24 trained insertion or ejection devices.
  • the friction wheels 23, 24 are formed so that they in the space between the side plates of the Driver device 15 taking into account the securing pin 27 fit. she can therefore exert a force on the two flat sides of the respective tension element 13a - n unfold and thus, depending on the direction of rotation, a movement of the strand of Effect tension elements 13 to the left or right.
  • By a corresponding flexible storage of the axes of the two friction wheels 23, 24 can also thickened points in the coupling area of two adjacent Traction elements 13i, 13k can be run over without any problems.
  • Figures 9a and 9b illustrate how the pulling out or pushing the individual tension elements 13a - n can be done and how to limit the number of withdrawals Tension elements 13a-n can be reached.
  • a tension element 13 already with the head piece 10 of the Telescopic boom 1 is connected.
  • the innermost shot of the telescopic boom 1 is thus the positive connection between the Traction element 13 and the first traction element 13 a still located in the container 17 closed so that this automatically with the telescoping is pulled out. Support from the device 22 with the friction wheels 23, 24 is therefore not provided here.
  • This Locking device 19 has, as can be seen from FIGS. 9a-11 front stop 20 and a rear stop 21, which in the illustrated Embodiment together with the friction wheel 23 of the insert device 22 transversely to the direction of tension of the tension elements by means of a pneumatic or hydraulic actuated lifting cylinder 25 can be moved.
  • Figures 9a, 9b, 10 and 11 also illustrate that the orderly filing of the Traction elements 13a - n inside the container 17, which is essentially as Steel sheet box is formed by an inclined sliding plate 18, which by right to left to the exit 18 of the container 17 rises, is facilitated.
  • the driver devices 15 can thus safely to the opening 18 provided be performed.
  • Figure 10 also includes Connection 29 emerges, via which by means of the clamping cylinder 26, which is not in Fig. 10 is shown, the housing of the container 17 connected to the guy stand 5 can be.
  • FIG. 12 shows an equipped telescopic boom 1, in which the guy boom 5, which has a U-shaped cross section, is applied to the basic box 2.
  • the Container 17 with the tension elements located therein is between the legs of the U-shaped brackets 5 arranged.
  • the rear guy 6 is in this case not from a fixed length rope but from a series of interconnected rods. You can still see that it is obviously unproblematic, for example a lattice mast auxiliary boom (not shown) on the opposite side of the telescopic boom 1 during the Carry the transport with you folded, as there is no winch in the way.
  • the height of a crane vehicle, which is equipped with such a telescopic boom 1 is equipped, is not unfavorably enlarged by the container 17.
  • the present invention enables a waiver in a surprisingly simple manner on any winch for the bracing of a telescopic boom.
  • the constructional complexity of the solution according to the invention is comparatively low.

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

Claims (23)

  1. Flèche télescopique, notamment pour une grue de véhicule, comportant un caisson de base (2), dans lequel sont guidés un ou plusieurs éléments télescopiques pouvant être sortis et rentrés (3, 4), comportant en outre un support à haubans (5) monté sur le dos du caisson de base (2), dont l'extrémité libre (8) est reliée à la zone de base (7) du caisson de base (2) par l'intermédiaire d'au moins un haubanage arrière (6), lequel est formé sur sa longueur avec une longueur fixe essentiellement grâce à un dispositif de traction, et avec au moins un haubanage avant (9) qui est relié d'une part à l'élément de tête (10) du caisson intérieur (3, 4) le plus intérieur ou au collet (11, 12) d'un caisson intérieur (3, 4) sorti et d'autre part à l'extrémité libre (8) du support à haubans (5), la force de traction souhaitée pouvant être réglée dans le haubanage avant (9) et/ou dans le haubanage arrière (6) dans l'état monté de la flèche télescopique (1),
    caractérisée en ce que, pour éviter les treuils à câble dans le haubanage de la flèche télescopique (1), le haubanage avant (9) est formé sur sa longueur essentiellement grâce à un certain nombre d'éléments de traction (13a - n) ayant tous une longueur fixe et étant reliés ou pouvant être reliés entre eux, les longueurs fixes des éléments de traction (13a - n) étant calculées de manière qu'un certain nombre d'éléments de traction (13a - n) correspondent à chaque fois à des longueurs déployées discrètes prédéterminées de la flèche télescopique (1).
  2. Flèche télescopique selon la revendication 1,
    caractérisée en ce que les éléments de traction (13a - n) du haubanage avant (9) sont formés par des tiges ou tubes ayant une section transversale ronde ou rectangulaire ou d'autres profils creux ou par des profilés ouverts.
  3. Flèche télescopique selon la revendication 1,
    caractérisée en ce que les éléments de traction (13a - n) du haubanage avant (9) sont formés par des éléments de câble ou des longueurs de chaíne discrètes.
  4. Flèche télescopique selon l'une des revendications 1 à 3,
    caractérisée en ce que les éléments de traction (13a - n) sont couplés entre eux par correspondance de forme, en particulier par l'intermédiaire de liaisons à boulons ou de butées mécaniques ou de liaisons à poche ou à crochet.
  5. Flèche télescopique selon la revendication 4,
    caractérisée en ce que
    les éléments de traction (13a - n) présentent sur l'essentiel de leur longueur une section transversale rectangulaire plate,
    à l'une des extrémités sont à chaque fois formés des tourillons de retenue (14) qui s'étendent vers l'extérieur sur les petits côtés de la section transversale rectangulaire afin d'augmenter la largeur,
    à l'autre extrémité d'un élément de traction (13k) est à chaque fois formé un dispositif d'entraínement (15) qui est pourvu dans ses zones latérales d'évidements en forme de poches dans lesquels les tourillons de retenue (14) de l'élément de traction (13l) directement consécutif peuvent s'engager par correspondance de forme sous charge de traction.
  6. Flèche télescopique selon l'une des revendications 1 à 5,
    caractérisée en ce que les éléments de traction (13a - n), dans l'état démonté de la flèche télescopique (1), sont glissés les uns dans les autres ou agencés pliés ou posés les uns à côté des autres ou les uns sur les autres dans une enveloppe (17).
  7. Flèche télescopique selon la revendication 6,
    caractérisée en ce que l'enveloppe (17) forme elle-même un élément de traction du haubanage avant (9).
  8. Flèche télescopique selon la revendication 7,
    caractérisée en ce que l'enveloppe (17) est reliée à l'extrémité libre (8) du support à haubans (5) par l'intermédiaire du dispositif de tension.
  9. Flèche télescopique selon l'une des revendications 6 à 8,
    caractérisée en ce que les éléments de traction (13a - n) peuvent être tirés hors de l'enveloppe en sortant les caissons intérieurs télescopiques (3, 4) ou par un dispositif séparé de poussée ou de traction.
  10. Flèche télescopique selon la revendication 9,
    caractérisée en ce que, à la sortie (18) de l'enveloppe (17), est agencé un dispositif de verrouillage (19), lequel bloque la sortie d'autres éléments de traction (13a - n) en cas d'actionnement correspondant.
  11. Flèche télescopique selon la revendication 10,
    caractérisée en ce que le dispositif de verrouillage (19) présente une butée (20) pouvant être déplacée transversalement au sens de traction des éléments de traction (13a - n), notamment une butée (20, 21) agissant à l'extrémité avant et arrière du dispositif d'entraínement.
  12. Flèche télescopique selon l'une des revendications 1 à 11,
    caractérisée en ce que les éléments de traction (13a - n) peuvent être glissés dans l'enveloppe (17) au moyen d'un dispositif de poussée (22) pour démonter la flèche télescopique (1).
  13. Flèche télescopique selon la revendication 12,
    caractérisée en ce que le dispositif de poussée (22) est réalisé sous forme de chaíne ou de ruban ou de câble rotatif(ve) pourvu(e) de dispositifs d'entraínement pour les éléments de traction (13a - n).
  14. Flèche télescopique selon la revendication 12,
    caractérisée en ce que le dispositif de poussée (22) est réalisé sous forme de ressorts de traction, lesquels sont agencés entre les éléments de traction (13a - n) se faisant suite et sont étirés lors de la sortie des éléments de traction (13a - n).
  15. Flèche télescopique selon la revendication 12,
    caractérisée en ce que le dispositif de poussée (22) est formé par un profilé en crémaillère sur les différents éléments de traction (13a - n) et par un pignon correspondant pouvant être entraíné dans la zone de l'enveloppe (17).
  16. Flèche télescopique selon la revendication 12,
    caractérisée en ce que le dispositif de poussée (22) présente un entraínement par friction (23, 24, 25).
  17. Flèche télescopique selon l'une des revendications 1 à 16,
    caractérisée en ce que le dispositif de tension est réalisé sous forme de cylindre de tension hydraulique (26) ou de commande à broche entraínée par moteur.
  18. Flèche télescopique selon l'une des revendications 1 à 17,
    caractérisée en ce que le dispositif de traction formant le haubanage arrière (6) est un câble ayant la longueur fixe du haubanage arrière (6).
  19. Flèche télescopique selon l'une des revendications 1 à 18,
    caractérisée en ce qu'à chaque fois deux haubanages arrière (6) et avant (9) latéralement opposés sont prévus, dont la force de traction est réglable par l'intermédiaire des dispositifs de tension, en particulier indépendamment l'un de l'autre, et le support à haubans (5) est réalisé sous forme de deux supports partiels opposés ou présente des points d'articulation séparés pour les haubanages arrière (6) et avant (9) opposés.
  20. Flèche télescopique selon l'une des revendications 1 à 19,
    caractérisée en ce que le support à haubans (5) est relié au caisson de base (2) par l'intermédiaire d'une articulation tournante.
  21. Flèche télescopique selon l'une des revendications 1 à 20,
    caractérisée en ce que, dans l'état démonté de la flèche télescopique (1), l'enveloppe (17) avec le support à haubans (5) peuvent être rabattus sur celle-ci.
  22. Flèche télescopique selon l'une des revendications 1 à 21,
    caractérisée en ce que le dispositif de tension est agencé soit en tant que membre intermédiaire à longueur variable dans le haubanage avant (9) et/ou dans le haubanage arrière (6) et/ou réalisé sous forme de dispositif destiné à faire varier la longueur du support à haubans (5).
  23. Flèche télescopique selon l'une des revendications 1 à 22,
    caractérisée en ce qu'au moins un élément de traction est prévu, dont la longueur peut être ajustée dans l'état démonté de la flèche télescopique.
EP01250427A 2000-12-11 2001-12-03 Flèche télescopique Expired - Lifetime EP1213254B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10062517 2000-12-11
DE10062517A DE10062517C2 (de) 2000-12-11 2000-12-11 Teleskopausleger

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Publication Number Publication Date
EP1213254A1 EP1213254A1 (fr) 2002-06-12
EP1213254B1 true EP1213254B1 (fr) 2004-07-21

Family

ID=7667272

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EP01250427A Expired - Lifetime EP1213254B1 (fr) 2000-12-11 2001-12-03 Flèche télescopique

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AT (1) ATE271516T1 (fr)
DE (2) DE10062517C2 (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE50306471D1 (de) 2002-06-05 2007-03-29 Liebherr Werk Ehingen Teleskopausleger eines Krans
DE20208740U1 (de) * 2002-06-05 2003-10-09 Liebherr Werk Ehingen Teleskopausleger eines Krans
DE20219126U1 (de) * 2002-12-10 2004-04-15 Liebherr-Werk Ehingen Gmbh Teleskopausleger
DE202008006167U1 (de) 2008-05-06 2008-07-17 Terex-Demag Gmbh Seitlich abgespannter Gittermast
DE102009008809A1 (de) * 2009-02-11 2010-08-19 V & M Deutschland Gmbh Zugstange für die Abspannung eines Kranauslegers
DE102016114837A1 (de) * 2016-08-10 2018-02-15 Terex Global Gmbh Teleskopausleger mit Abspannsystem für einen Mobilkran und Abspannverfahren hierfür
DE102017101113B3 (de) 2017-01-20 2018-07-12 Terex Global Gmbh Teleskopausleger mit Stangenabspannsystem für einen Mobilkran und Abspannverfahren hierfür
DE102019122071B3 (de) * 2019-08-16 2020-09-17 Tadano Demag Gmbh Teleskopausleger mit ausklappbarem Mast
DE102022102318A1 (de) 2022-02-01 2023-08-03 Liebherr-Werk Ehingen Gmbh Mobilkran mit abgespanntem Teleskopausleger

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3113763A1 (de) * 1981-04-04 1982-10-28 Mannesmann AG, 4000 Düsseldorf "fahrzeugkran mit teleskopausleger"
EP0334187B1 (fr) * 1988-03-23 1991-10-16 Liebherr-Werk Ehingen GmbH Grue mobile à flèche extensible
FR2629248B1 (fr) * 1988-03-25 1992-04-24 Sgs Thomson Microelectronics Procede de test de memoire a programmation unique et memoire correspondante
US4982853A (en) * 1989-02-09 1991-01-08 Hikoma Seisakusho Co., Ltd. Reinforcement mechanism for multi-stage telescopic boom
DE19606109A1 (de) * 1995-12-12 1997-06-19 Liebherr Werk Ehingen Fahrzeugkran
DE20002748U1 (de) * 2000-02-16 2000-08-03 Liebherr Werk Ehingen Fahrzeugkran

Also Published As

Publication number Publication date
DE10062517A1 (de) 2002-06-27
ATE271516T1 (de) 2004-08-15
DE10062517C2 (de) 2002-12-05
DE50102917D1 (de) 2004-08-26
EP1213254A1 (fr) 2002-06-12

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