EP3556970B1 - Pompe à béton - Google Patents

Pompe à béton Download PDF

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Publication number
EP3556970B1
EP3556970B1 EP19168994.2A EP19168994A EP3556970B1 EP 3556970 B1 EP3556970 B1 EP 3556970B1 EP 19168994 A EP19168994 A EP 19168994A EP 3556970 B1 EP3556970 B1 EP 3556970B1
Authority
EP
European Patent Office
Prior art keywords
telescopic
concrete pump
swivel
leg
pump truck
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.)
Active
Application number
EP19168994.2A
Other languages
German (de)
English (en)
Other versions
EP3556970A1 (fr
Inventor
Stefan Peters
Rainer Haberkorn
Martin Pfänder
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 Mischtecknik GmbH
Original Assignee
Liebherr Mischtecknik 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
Application filed by Liebherr Mischtecknik GmbH filed Critical Liebherr Mischtecknik GmbH
Publication of EP3556970A1 publication Critical patent/EP3556970A1/fr
Application granted granted Critical
Publication of EP3556970B1 publication Critical patent/EP3556970B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
    • E04G21/02—Conveying or working-up concrete or similar masses able to be heaped or cast
    • E04G21/04—Devices for both conveying and distributing
    • E04G21/0418—Devices for both conveying and distributing with distribution hose
    • E04G21/0445—Devices for both conveying and distributing with distribution hose with booms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
    • B66C23/62—Constructional features or details
    • B66C23/72—Counterweights or supports for balancing lifting couples
    • B66C23/78—Supports, e.g. outriggers, for mobile cranes

Definitions

  • the invention relates to a truck-mounted concrete pump with at least one telescopic pivoting leg and at least one frame section, with the telescopic pivoting leg comprising at least one pivoting section and at least one telescopic section, with the pivoting section being pivotably articulated on the frame section and with at least one energy supply device being provided, which is designed to have at least one To supply the supporting device of the telescopic pivoting leg with energy.
  • Telescopic swivel legs are part of the support structure of truck-mounted concrete pumps and derive the loads of the placing boom and any other loads acting on the truck-mounted concrete pump into the subsoil of the truck-mounted concrete pump.
  • the derived loads can result from the dead weight of the placing boom, the concrete load and the load moment of the entire machine.
  • the telescopic pivoting legs are connected at one of their ends to a so-called mast bracket, which can be called a frame section, which functions as a support element of the placing boom.
  • a supporting device for the operation of which an energy supply device can be provided.
  • the energy management device can comprise at least one electrical line or cable, at least one pressure fluid line and/or at least one data line to a sensor and/or to a lighting element.
  • the supporting device can include a hydraulic cylinder, a spindle drive and/or other drive components.
  • the energy supply device can comprise at least one electrical line and/or at least one hydraulic line, which is routed from a hydraulic tank or an energy supply device in the area of the mast bracket through the pivoting telescopic leg or along the pivoting telescopic leg.
  • the energy supply device serves to supply energy to the supporting device.
  • telescopic swivel legs have a vertical swivel axis in the area of the connection to the mast bracket and can be telescoped one or more times.
  • the energy supply device for supplying the support device must be able to follow these degrees of freedom of movement of the telescopic pivoting leg.
  • Installed horizontally means that the joint axis of the energy transmission chain or the energy transmission device is installed horizontally relative to the machine.
  • the energy guiding chain can therefore form a radius in the vertical plane.
  • a comparatively large amount of space is required for accommodating the energy guiding chain, depending on the hoses or cables that are carried along or contained in the energy guiding chain.
  • a truck-mounted concrete pump is provided with at least one telescopic pivoting leg and at least one frame section, the telescopic pivoting leg comprising at least one pivoting section and at least one telescopic section.
  • the telescopic pivoting leg comprising at least one pivoting section and at least one telescopic section.
  • two or more telescopic sections are part of a corresponding telescopic pivoting leg.
  • the pivoting section is pivotably linked to the frame section and that at least one energy supply device is provided, which is set up to supply at least one support device of the telescopic pivoting leg with energy.
  • the energy supply device can include, for example, hydraulic lines, by means of which pressurized fluid can be supplied to the support device and along the telescopic pivoting leg.
  • the energy supply device has at least one pivot axis which is arranged parallel to the pivot axis of the pivot section and about which the energy supply device can be pivoted.
  • the idea according to the invention is therefore to use the mobility of energy supply chains or energy supply devices in a plane by rotating them through 90° in such a way that a single energy supply chain compensates for both the pivoting movement and the telescoping of a telescopic pivoting leg.
  • the energy supply device or the energy supply chain follows both movements. If the energy supply device is skilfully designed with wide chain links, it can ideally also be designed without any further guidance and without any further carrier elements.
  • the energy supply device takes over the hose/cable routing itself.
  • separate attachments had to be provided for this, which allow a corresponding deformation.
  • the invention better guidance is possible and the guided cables/hoses are also better protected.
  • a more compact design of the energy supply device is thus also made possible. Accordingly, this can have a smaller extent in width and/or height. This in turn makes it possible to use the telescope cross section of the telescopic pivoting leg to be made wider, which enables a better static design.
  • the embodiment of the truck-mounted concrete pump according to the invention is characterized by a particularly high degree of simplicity without compromising on its functionality. Furthermore, the dimensions of energy supply devices with this type of reorientation ideally match the available installation space in the telescopic pivoting leg.
  • the energy guiding device is an energy guiding chain.
  • this has cavities and/or recesses within which energy-carrying elements are arranged, guided and/or protected as energy-carrying devices such as electrical lines, compressed air lines and/or hydraulic lines of the energy-carrying chain.
  • the energy supply device When the telescopic swivel leg is in a swiveled-in and/or telescoped-in state, the energy supply device extends further to the rear or further to the front of the truck-mounted concrete pump than the telescopic swivel leg.
  • the extension or positioning of the energy supply device can be selected such that the freedom of movement of the telescopic pivoting leg is kept as large as possible.
  • the energy guide may extend further rearward and in the case of a rear pivoting telescopic leg further forward.
  • the pivoted-in state of the telescopic swivel leg means a state in which the telescopic swivel leg is positioned essentially parallel to the longitudinal axis of the truck-mounted concrete pump and usually for moving and not for supporting the truck-mounted concrete pump.
  • the telescoped state of the telescopic pivoting leg means a state in which the telescopic section of the telescopic pivoting leg is in a telescoped state, ie in a state in which the telescopic pivoting leg has a small or its smallest longitudinal extent.
  • the energy supply device extends further inwards relative to the truck-mounted concrete pump than the telescopic pivoting leg when the telescopic pivoting leg is pivoted out and/or telescoped out. It can be provided in particular that an energy supply device designed as an energy supply chain is arranged at least partially further inwards and/or further to the rear than the telescopic pivoting leg.
  • the energy supply device can be arranged particularly easily so that the freedom of movement of the telescopic swivel leg is not restricted.
  • the swiveled-out state of the telescopic swivel leg is a state in which the telescopic swivel leg is not arranged parallel to the concrete pump, or is angled to support the truck-mounted concrete pump in a working state.
  • the telescoped state of the telescopic pivoting leg corresponds to a state in which the telescopic section and the frame section of the telescopic pivoting leg are adjusted relative to one another such that the telescopic pivoting leg is extended or in a state of maximum or not minimum length.
  • the energy supply device extends at least partially within the telescopic section.
  • the telescopic section itself can be designed at least in sections as a hollow profile element or have a hollow profile, within which the energy supply device can be arranged at least partially.
  • the energy supply device can be protected from damage and/or dirt by the walls of the telescopic section.
  • the telescopic section can have different profile cross sections along its longitudinal axis in order to be designed at least in sections to accommodate the energy supply device.
  • the energy supply device is a single or continuous connection of the frame section to the telescopic section.
  • a single or continuous connection is to be understood as a connection of the same type, which is constructed in the same way over the entire length of the connection between the frame section and telescopic section or support device and whose individual sections do not differ from the other sections along the length of the connection.
  • a continuous connection is understood to be one that runs from the frame section to the telescopic section or to the support device and connects these components alone, that is to say without additional, possibly different connection sections for energy transmission.
  • the energy supply device at least partially encompasses the telescopic section. This can be the case in particular at a longitudinal end of the telescopic section.
  • the encompassing means that the telescopic section is at least partially arranged between the energy supply device.
  • the energy supply device is arranged in the area of the lower or the upper half of the telescopic section. It is also conceivable that the energy supply device in the middle or generally off-center with respect to the vertical of the telescoping section.
  • the energy supply device is at least partially arranged on an outside of the telescopic section, which is directed towards the truck-mounted concrete pump or away from the truck-mounted concrete pump and/or that at least one front telescopic pivoting leg and at least one rear telescopic pivoting leg are provided, which in particular have a common Pivot axis are pivotable relative to the other structure of the truck-mounted concrete pump.
  • a common pivot point can thus be provided for the front and rear pivoting beam or for the corresponding telescopic pivoting leg.
  • Figures 1a and 1b show schematic top views of a support section of a truck-mounted concrete pump according to the invention with at least one telescopic pivoting leg 1.
  • Figure 1a shows an embodiment of the truck-mounted concrete pump with a total of two telescopic pivoting legs 1 and 1
  • Figure 1b shows an embodiment with a total of four telescopic pivoting legs 1, 1', two of which are aligned to the front and two to the rear and can be arranged in pairs on the truck-mounted concrete pump.
  • any number of corresponding telescopic pivoting legs 1 can be provided, with two or four telescopic pivoting legs preferably being provided.
  • the telescopic pivoting leg 1 or the telescopic pivoting legs 1 are pivoted on a frame section 4, wherein the frame section 4 can be a mast bracket with a tank or with an energy supply device.
  • the frame section 4 can also be different from the mast pedestal and/or describe a frame 6a or frame part that is located further back in relation to the mast pedestal.
  • the power supply can be set up to supply a support device 6 of the telescopic pivoting leg 1 with power or electrical power and/or pressurized fluid.
  • the telescopic pivoting leg 1 comprises at least one telescopic section 3 which is mounted telescopically or displaceably in a pivoting section 2 .
  • An embodiment is also conceivable in which the telescopic pivoting legs 1 comprise a plurality of telescopic sections 3 mounted one inside the other.
  • the telescopic pivoting leg 1 is coupled via at least one energy supply device 5 to the frame section 4, the frame 6a and/or to other sections of the further structure of the truck-mounted concrete pump for energy transmission.
  • One end of the energy guidance device 5 does not have to be fastened to the frame section 4, but can alternatively be fastened further to the rear, for example on the frame 6a.
  • the energy supply device 5 is set up to supply at least one support device 6 of the telescopic pivoting leg 1 with energy, in particular with electrical power and/or hydraulic energy.
  • the support device 6 can be arranged on an end area of the telescopic pivoting leg 1 and there in particular on an end area of a telescopic section 3 .
  • the support device 6 can be moved vertically or in the direction of a base of the truck-mounted concrete pump and can support the truck-mounted concrete pump against the base.
  • the energy guidance device 5 has a pivot axis which is arranged parallel to the pivot axis of the pivot section 2 . These axes are in the Figures 1a to 2b perpendicular to the drawing plane.
  • the energy supply device 5 and the telescopic pivoting leg 1 can thus be pivoted about pivot axes which are arranged parallel to one another or perpendicular to the base of the truck-mounted concrete pump.
  • the pivoting of the energy supply device 5 can involve a different type of pivoting than the pivoting of the pivoting section 2 of the telescopic pivoting leg 1. While the pivoting of the pivoting section 2 takes place about a fixed pivoting axis defined by the position of the frame section 4 and the pivoting section 2 , the pivot axis of the energy supply device 5 can be positioned differently depending on the pivoting state due to the flexible design of the energy supply device 5 .
  • the energy supply device 5 can be pivotable in a horizontal plane that is parallel to the pivoting plane of the pivoting section 2 .
  • These planes essentially correspond to the drawing plane.
  • the information on the parallel or vertical arrangement of the pivot axes or pivot planes should not be interpreted narrowly can also include deviating angular positions within the scope of the functionality of the features described.
  • FIGS. 1 and 2 B show schematic views of two embodiments of truck-mounted concrete pumps known from the prior art, in which an energy supply device 5 is designed in two or more parts.
  • Figure 2a shows an embodiment with two telescopic swivel legs 1
  • Figure 2b shows an embodiment with four telescopic pivoting legs 1, 1'.
  • a hose 51 connects the telescopic pivoting leg 1 to the frame section 4 and enables the two components to be pivoted relative to one another.
  • the tube 51 does not allow the telescoping section 3 to be telescoped relative to the pivoting section 2 .
  • an energy transmission chain 52 is provided, which only connects or couples the pivoting section 2 to the telescopic section 3 in a displaceable manner.
  • the energy supply chain 52 known from the prior art can be shorter and oriented differently than the energy supply device 5 provided according to the invention.
  • the energy transmission chain 52 and the hose 51 must also be coupled to one another via a corresponding connection for the energy transmission.
  • a tube 53 can be provided in the coupling area of the energy guiding chain 52 and the tube 51 .
  • pivoting legs 1 are each shown in a pivoted-in and retracted state at the top and in a pivoted-out and extended state at the bottom.
  • Figures 3a and 3b show lateral schematic views of telescopic swivel legs 1.
  • Figure 3a shows an embodiment known from the prior art, in which a separate energy guiding chain 52 is provided for the transmission of energy between an area of the pivoting section 2 and an area of the telescopic section 3 .
  • this energy supply chain 52 is not suitable for supplying energy over the pivoting range between the frame section 4 and the pivot portion 2 to allow.
  • tubing or tubing is provided, which can include at least one tube 53 and/or at least one hose 51 , which are different from the energy guiding chain 52 .
  • a continuous energy supply device 5 is from Figure 3b shown embodiment of the invention, where the energy supply device 5 is shown lying in a horizontal plane or from the side. This makes it possible to transmit energy solely by means of the energy supply device 5 both in different pivoting positions and in different telescopic states of the telescopic pivoting leg 1, without the need for the in Figure 3a shown hose 51 or the tube 53.
  • a pivot axis 54 is shown, about which the telescopic pivoting leg 1 can be pivoted about the rest of the structure of the truck-mounted concrete pump.
  • Figures 4a and 4b show cross sections of a telescopic swivel leg 1 known from the prior art ( Figure 4b ) and a telescopic pivoting leg 1 according to the invention ( Figure 4a ).
  • the energy supply device 5 in the embodiment according to the invention is arranged essentially horizontally and can be coupled to the telescopic section 3 in a lower region thereof and/or arranged on it.
  • the telescopic section 3 can be designed in the form of a hollow profile, it being conceivable for the energy supply device 5 to run at least partially within the hollow profile of the telescopic section 3 .
  • the energy supply device 5 can encompass the telescopic section 3 and thus be arranged at least partially on a side facing away from the truck-mounted concrete pump, as is shown in Figure 4a is shown.
  • the energy supply device 5′ can not encompass the telescopic section 3 and can therefore be arranged at least partially on a side of the telescopic section 3 facing the truck-mounted concrete pump.
  • the side facing away from the truck-mounted concrete pump is in the Figure 4a corresponding to the left-hand side of the telescopic section 3.
  • the telescopic section 3 and/or the pivoting section 2 can be designed, at least in sections, as a C-profile or C-shape, in particular placed on edge.
  • Figure 4b shows an embodiment of the telescopic pivoting leg 1 known from the prior art, wherein the energy supply device 5 is arranged curved in a vertical plane and wherein the two legs of the energy supply device 5 can be arranged at least partially one above the other instead of next to each other as provided according to the invention.
  • the telescopic section 3 In order to accommodate the relatively wide energy output device 5 within the pivoting section 2, the telescopic section 3 must be sufficiently narrow. According to the invention, however, the telescopic section 3 can be made wider and therefore more stable.
  • the prior art on the other hand, only a very narrow energy supply device 5 is permitted, as a result of which a bundle of hoses/cables attached to it is thicker and, as a result, disadvantageously large bending radii are required.
  • the mobile concrete pump 1a shown consists of a chassis 2a, which is formed by a conventional truck with a driver's cab 3a, a front axle 4a, a rear double axle 5a and the frame 6a connecting these components.
  • a placing boom 7a is shown on the chassis 2a in its rest position, which in the embodiment shown has four boom sections 8a which are connected to one another by joints 9a and can be adjusted in relation to one another by hydraulic devices 10a.
  • the strongest, lower mast section 8a is connected to a mast bracket 11a, which in turn is mounted directly on the chassis 2a in the front third of the distance between the front axle 4a and the double axle 5a adjacent to the front axle.
  • the distributor boom 7a can be rotated about a vertical axis 12a, so that any point within the radius that results from the distributor boom 7a in its extended configuration can be reached by interacting with the joints 9a of the distributor boom 7a.
  • a feed box 13a is arranged at the rear end of the chassis 2a, through which the concrete is fed to a solids pump 14a, which pumps the concrete through a line 15a to the boom pedestal 11a and through this to a hose arranged on the placing boom 7a, so that the feed box 13a introduced concrete emerges from the hose at the free end of the placing boom 7a and can be processed there.
  • Two front telescopic pivoting legs or support legs 16a and two rear pivoting legs or support legs 17a are arranged on the chassis 2a, which serve to stabilize the mobile concrete pump 1a during the pumping process, so that the placing boom 7a can be pivoted without endangering personnel or material.
  • the front support leg 16a, each arranged on one side of the chassis 2a, and the rear support leg 17a have, in the example, a common vertical pivot axis 18a, about which the pivot bearing assigned to the front support leg 16a and the rear support leg 17a is rotated, with the front support legs 16a and rear Supporting legs 17a are fastened to a pivoting leg bearing associated with the mast block 11a.
  • the front support leg 16a is formed by a guide tube 22a that can be pivoted about the pivot axis 18a.
  • a sliding tube 23a is slidably mounted, which in figure 5 shown resting position of the front support leg 16a protrudes backwards through the guide tube 22a, so that the support foot 24a arranged on the sliding tube 23a is in the resting position on the chassis 2a in an available gap.
  • the guide tube 22a can be pivoted with the sliding tube 23a from a position parallel to the longitudinal axis 26a of the chassis 2a. Only little space is required for this pivoting movement on the construction site for the use of the mobile concrete pump 1a itself, since the displacement of the sliding tube 23a within the guide tube 22a only takes place when the desired pivoting angle has been reached.
  • the sliding tube 23a is then displaced in order to displace the front support point sufficiently far from the mast bracket 11a.
  • a different positioning of the front support legs 16a possible.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
  • Reciprocating Pumps (AREA)

Claims (8)

  1. Pompe à béton comportant
    une partie cadre (4) destinée à porter un mât distributeur (7a), et
    un bras pivotant télescopique (1), qui comprend une partie pivotante (2) et une partie télescopique (3), dans laquelle
    la partie pivotante (2) est articulée sur la partie cadre (4) de manière pivotante par rapport à un axe de pivotement (54) disposé perpendiculairement à une surface sous-jacente de la pompe à béton, et
    un système de guidage d'énergie (5) est prévu pour alimenter un dispositif d'appui (6) du bras pivotant télescopique (1) en énergie pneumatique, hydraulique et/ou électrique,
    caractérisée en ce que
    le système de guidage d'énergie (5) présente un axe de pivotement disposé parallèlement à l'axe de pivotement de la partie pivotante (2), sur lequel le système de guidage d'énergie (5) peut pivoter, et dans laquelle le système de guidage d'énergie (5) est une chaîne porte-câbles, qui présente des cavités et/ou des évidements, à l'intérieur desquels sont disposés, guidés et/ou protégés des éléments conduisant de l'énergie en tant que systèmes de guidage d'énergie (5), tels que des câbles électriques, des conduites d'air comprimé et/ou des conduites hydrauliques, et s'étend, dans un état replié et/ou rétracté du bras pivotant télescopique (1), plus loin vers l'arrière ou plus loin vers l'avant que le bras pivotant télescopique (1) par rapport à la pompe à béton.
  2. Pompe à béton selon la revendication 1, caractérisée en ce que le système de guidage d'énergie (5) s'étend, dans un état pivoté vers l'extérieur et/ou déployé du bras pivotant télescopique (1), plus loin vers l'intérieur que le bras pivotant télescopique (1) par rapport à la pompe à béton.
  3. Pompe à béton selon l'une des revendications précédentes, caractérisée en ce que le système de guidage d'énergie (5) s'étend au moins en partie à l'intérieur de la partie télescopique (3).
  4. Pompe à béton selon l'une des revendications précédentes, caractérisée en ce qu'au moins un évidement et/ou au moins un passage destiné à recevoir le système de guidage d'énergie (5) est prévu sur la partie télescopique (3).
  5. Pompe à béton selon l'une des revendications précédentes, caractérisée en ce que le système de guidage d'énergie (5) constitue une liaison unique de la partie cadre (4) avec la partie télescopique (3).
  6. Pompe à béton selon l'une des revendications précédentes, caractérisée en ce que le système de guidage d'énergie (5) entoure au moins partiellement la partie télescopique (1).
  7. Pompe à béton selon l'une des revendications précédentes, caractérisée en ce que le système de guidage d'énergie (5) est disposé dans la zone de la moitié inférieure ou de la moitié supérieure de la partie télescopique (3).
  8. Pompe à béton selon l'une des revendications précédentes, caractérisée en ce que le système de guidage d'énergie (5) est disposé au moins en partie sur un côté extérieur de la partie télescopique (3), qui est orienté vers la pompe à béton ou dans la direction opposée à la pompe à béton, et/ou en ce qu'au moins un bras pivotant télescopique avant (16a) et au moins un bras pivotant télescopique arrière (17a) sont prévus, qui peuvent en particulier pivoter par le biais d'un axe de pivotement commun (18a) par rapport au reste de la structure de la pompe à béton.
EP19168994.2A 2018-04-18 2019-04-12 Pompe à béton Active EP3556970B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102018109224.5A DE102018109224A1 (de) 2018-04-18 2018-04-18 Autobetonpumpe

Publications (2)

Publication Number Publication Date
EP3556970A1 EP3556970A1 (fr) 2019-10-23
EP3556970B1 true EP3556970B1 (fr) 2023-05-10

Family

ID=66175273

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19168994.2A Active EP3556970B1 (fr) 2018-04-18 2019-04-12 Pompe à béton

Country Status (3)

Country Link
EP (1) EP3556970B1 (fr)
DE (1) DE102018109224A1 (fr)
ES (1) ES2950787T3 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202021102360U1 (de) * 2021-04-30 2022-08-02 Liebherr-Mischtechnik Gmbh Abstützvorrichtung für eine Autobetonpumpe

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29511528U1 (de) * 1995-07-17 1995-09-28 Palfinger Ag Teleskopausleger mit einer Schlauchführung

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Publication number Priority date Publication date Assignee Title
FR2239103A5 (en) * 1973-07-23 1975-02-21 Fontan Jean Control for telescopic jib of crane on vehicle - jib may be telescoped and simultaneously pivoted by ram
US4394912A (en) * 1980-11-07 1983-07-26 Harnischfeger Corporation Mobile crane having telescoping outriggers and power operated screw means for same
US4809472A (en) * 1987-09-25 1989-03-07 Kidde Industries, Inc. Carrier track assembly for extensible and retractable boom machines
DE19805359A1 (de) * 1998-02-12 1999-08-19 Putzmeister Ag Fahrbare Arbeitsmaschine mit Stützbeinen und Achsarretierung
DE29811097U1 (de) * 1998-06-20 1998-08-20 Waitzinger Baumaschinen Vertri Fahrbare Betonpumpe
DE10032585A1 (de) * 2000-07-05 2002-01-17 Deere & Co Anbaurahmen und teleskopartiger Ausleger mit Anbaurahmen
DE202014105136U1 (de) * 2014-10-27 2014-11-06 Igus Gmbh Leitungsführungsanordnung für einen Mehrfach-Teleskopausleger mit mehreren Schubstücken
DE102016104653A1 (de) * 2016-03-14 2017-09-14 Schwing Gmbh Doppelt teleskopierbare Bogenabstützung

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29511528U1 (de) * 1995-07-17 1995-09-28 Palfinger Ag Teleskopausleger mit einer Schlauchführung

Also Published As

Publication number Publication date
DE102018109224A1 (de) 2019-10-24
EP3556970A1 (fr) 2019-10-23
ES2950787T3 (es) 2023-10-13

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