EP1205423A1 - Ground support for mobile cranes, excavators and the like - Google Patents

Ground support for mobile cranes, excavators and the like Download PDF

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Publication number
EP1205423A1
EP1205423A1 EP01250397A EP01250397A EP1205423A1 EP 1205423 A1 EP1205423 A1 EP 1205423A1 EP 01250397 A EP01250397 A EP 01250397A EP 01250397 A EP01250397 A EP 01250397A EP 1205423 A1 EP1205423 A1 EP 1205423A1
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EP
European Patent Office
Prior art keywords
support
vehicle frame
floor support
upper region
support according
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.)
Withdrawn
Application number
EP01250397A
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German (de)
French (fr)
Inventor
Klaus Dipl.-Ing. Conrad
Jens Dipl.-Ing. Fery
Martin Bauer
Rolf Dipl.-Ing Heintz
Sascha Dipl.-Ing. Scholz
Mario Rübel
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
Demag Mobile Cranes 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 Demag Mobile Cranes GmbH and Co KG filed Critical Demag Mobile Cranes GmbH and Co KG
Publication of EP1205423A1 publication Critical patent/EP1205423A1/en
Withdrawn legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
    • B66C23/62—Constructional features or details
    • B66C23/72—Counterweights or supports for balancing lifting couples
    • B66C23/78—Supports, e.g. outriggers, for mobile cranes

Definitions

  • the invention relates to a floor support for mobile cranes, excavators and the like with several, arranged on the vehicle frame of the crane, excavator and the like Support beams according to the preamble of claim 1.
  • a floor support of the generic type is e.g. from DE 297 19 953 U1 known.
  • the crane vehicle has one lying in the longitudinal axis of the vehicle Vehicle frame, which with a part of the front end of the vehicle frame and 4-point support assigned to the rear end of the vehicle frame Crane operation is provided.
  • Each support consists of an outer and an inside outer support beam slidably arranged inner support beam.
  • the respective outer support beam is in an opening of the vehicle frame transverse to the longitudinal axis slidably received, two support beams in the direction of the vehicle frame longitudinal axis are stored one behind the other and parallel to each other.
  • At the ends of the respective inner support beam is a vertically displaceable against the ground Support cylinder arranged, at the free end of which there is a support plate.
  • the inner and outer hollow support beams are rectangular in cross-section.
  • This Embodiment is disadvantageous with respect to the buckling stiffness of the support beams, so that the wall thickness in the area of the top must be chosen accordingly what has an adverse effect on the unusable weight of the crane.
  • the object of the invention is to provide a floor support for mobile cranes, excavators and Specify the same, which is cheaper in weight compared to the known Embodiment.
  • the support arm consists of a cross section Profile, the lower part of which is U-shaped and the upper part of which is dome-shaped is trained.
  • the vehicle frame becomes elastic due to the attached load pressed down as well as the support arms. This means that the top of the Support arms under pressure and the underside of the support arms under tension. Due to the proposed rounding of the upper region of the support arms, the Buckling stiffness increased so that the wall thickness can be reduced accordingly. This means that the support arm becomes lighter overall, making it unusable Dead weight becomes lower.
  • the upper area can optionally be semicircular, semi-oval or elliptical be, with the elliptical shape the smaller radius is at the apex.
  • the arrangement of the support plate in the end region of the support arms has one
  • the cross-sectional shape was found to be advantageous, the two arranged in mirror image has curved sections and a straight horizontal section in the apex region lies.
  • the horizontal section is chosen so small that on the one hand the Support cylinder can be attached and on the other hand, the buckling stiffness is not is reduced.
  • the two curved sections are as Circular arc sections formed, their respective center offset from the vertical Axis of symmetry.
  • the support arms can be made in one piece as a profile section or from two shells are welded together, with the legs of the upper and lower Area against each other.
  • Figure 1 is a plan view of a 4-point floor support of a mobile crane shown. It consists of one lying in the longitudinal axis of the crane vehicle Vehicle frame 1 and a rotating crane 2 arranged in the middle, on which the here The superstructure, not shown, is rotatably mounted.
  • four axles 3 are provided on the vehicle frame 1, each with two right and left wheels 4.
  • it consists of two Support arms 5.1, 5.2 which can be telescoped into one another and one at the free end of the inner support arm 5.2 arranged support cylinder 6 and one thereon attachable support plate 7. Two are seen in the longitudinal axis of the vehicle frame 1 Floor supports arranged one behind the other and parallel to each other.
  • Figure 2 shows the arrangement in a perspective view.
  • the hollow box-like design of the support arms 5.1, 5.2 can be clearly seen.
  • the one known rectangular cross-section visible on the front side 9.
  • the load presses, as the arrow 10 shows, on the vehicle frame 1 and accordingly also on the Ground support. Since the ground support corresponds to the direction of the force 10 bends elastically downward, the top 11 is, for example, the inner Support arm 5.2 under pressure and the underside 12 under tension.
  • the buckling stiffness is low, so that Wall thickness of the area of the top 11 must be reinforced accordingly. The increases the weight of the support arms 5.1, 5.2 and accordingly the unusable Dead weight of the vehicle frame.
  • the cross-section for the support arms 5.1, 5.2 is shown by way of example in four partial images 3a to 3d.
  • the respective lower area 13 is U-shaped and the respective upper area 14.1 to 14.4 is dome-shaped.
  • the upper region is semicircular in cross section and oval in the second partial image b.
  • the cross section of the upper region 14.3 is elliptical, the small radius r of the ellipse being at the apex.
  • a preferred embodiment is shown in partial image d.
  • the upper area 14.4 consists of two mirror-inverted curved sections 15, 15 'and a horizontal section 16 lying in the apex area.
  • this section 16 is chosen to be as small as possible in order to accommodate the support cylinder 6 shown in FIG. 2 on one side to be able to and on the other hand not to lower the dent resistance.
  • the two curved sections 15, 15 ' are preferably circular arc sections, the center points M 1 , M 1 ' of which are offset from the vertical axis of symmetry 17.
  • cross sections shown in the partial images a to d can be made in one piece as a hollow profile be produced or, as shown in drawing d, consist of two shells, the Legs 18, 18 ', 19, 19' are directed towards each other. You will prefer welded together.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Jib Cranes (AREA)
  • Body Structure For Vehicles (AREA)

Abstract

The ground support for a mobile crane, excavator and similar has several support bearers on the vehicle frame, at the free ends of which are support cells displaceable vertically against the ground. Each support bearer has a support arm adjustable between a travel-prepared position and a work-prepared position relatively to the vehicle frame. The support arm is located either directly on the vehicle frame or can be pushed in and out of a support case fixed to the vehicle frame. Viewed in cross-section, the support arm comprises a profile, the lower area (13) of which is U-shaped whilst its upper area (14.1-14.4) is dome-shaped.

Description

Die Erfindung betrifft eine Bodenabstützung für fahrbare Krane, Bagger und dergleichen mit mehreren, am Fahrzeugrahmen des Kranes, Baggers und dergleichen angeordneten Stützträgern gemäß dem Oberbegriff des Patentanspruches 1.The invention relates to a floor support for mobile cranes, excavators and the like with several, arranged on the vehicle frame of the crane, excavator and the like Support beams according to the preamble of claim 1.

Eine Bodenabstützung der gattungsgemäßen Art ist z.B. aus der DE 297 19 953 U1 bekannt. Das Kranfahrzeug weist einen in der Fahrzeug-Längsachse liegenden Fahrzeugrahmen auf, der mit einer teils dem vorderen Ende des Fahrzeugrahmens und teils dem hinteren Ende des Fahrzeugrahmens zugeordneten 4-Punkt-Abstützung für den Kranbetrieb versehen ist. Jede Abstützung besteht aus einem äußeren und einem im äußeren Abstützträger verschiebbar angeordneten inneren Abstützträger. Der jeweilige äußere Abstützträger ist in einer Öffnung des Fahrzeugrahmens quer zur Längsachse verschiebbar aufgenommen, wobei zwei Abstützträger in Richtung der Fahrzeugrahmen-Längsachse hintereinander und parallel zueinander gelagert sind. An den Enden des jeweiligen inneren Abstützträgers ist ein vertikal gegen den Boden verschiebbarer Abstützzylinder angeordnet, an dessen freiem Ende sich ein Abstützteller befindet. Der innere wie der äußere hohle Abstützträger ist im Querschnitt gesehen rechteckig. Diese Ausführungsform ist nachteilig hinsichtlich der Beulsteifigkeit der Abstützträger, so dass die Wanddicke im Bereich der Oberseite entsprechend hoch gewählt werden muss, was sich nachteilig auf das nicht ausnutzbare Eigengewicht des Kranes auswirkt.A floor support of the generic type is e.g. from DE 297 19 953 U1 known. The crane vehicle has one lying in the longitudinal axis of the vehicle Vehicle frame, which with a part of the front end of the vehicle frame and 4-point support assigned to the rear end of the vehicle frame Crane operation is provided. Each support consists of an outer and an inside outer support beam slidably arranged inner support beam. The respective outer support beam is in an opening of the vehicle frame transverse to the longitudinal axis slidably received, two support beams in the direction of the vehicle frame longitudinal axis are stored one behind the other and parallel to each other. At the ends of the respective inner support beam is a vertically displaceable against the ground Support cylinder arranged, at the free end of which there is a support plate. The The inner and outer hollow support beams are rectangular in cross-section. This Embodiment is disadvantageous with respect to the buckling stiffness of the support beams, so that the wall thickness in the area of the top must be chosen accordingly what has an adverse effect on the unusable weight of the crane.

Aufgabe der Erfindung ist es, eine Bodenabstützung für fahrbare Krane, Bagger und dergleichen anzugeben, die gewichtsmäßig günstiger ist im Vergleich zu der bekannten Ausführungsform.The object of the invention is to provide a floor support for mobile cranes, excavators and Specify the same, which is cheaper in weight compared to the known Embodiment.

Diese Aufgabe wird ausgehend vom Oberbegriff in Verbindung mit den kennzeichnenden Merkmalen des Anspruches 1 gelöst. Vorteilhafte Weiterbildungen sind jeweils Gegenstand von Unteransprüchen.This task is based on the generic term in conjunction with the characteristic ones Features of claim 1 solved. Advantageous further developments are in each case Subject of subclaims.

Nach der Lehre der Erfindung besteht der Stützarm im Querschnitt gesehen aus einem Profil, dessen unterer Bereich U-förmig und dessen oberer Bereich kalottenförmig ausgebildet ist. Im Lastfall wird durch die angehängte Last der Fahrzeugrahmen elastisch nach unten gedrückt und ebenso die Stützarme. Dies bedeutet, dass die Oberseite der Stützarme auf Druck und die Unterseite der Stützarme auf Zug beansprucht werden. Durch die vorgeschlagene Abrundung des oberen Bereiches der Stützarme wird die Beulsteifigkeit erhöht, so dass die Wanddicke dementsprechend verringert werden kann. Dies bedeutet, dass der Stützarm insgesamt leichter wird, so dass das nicht ausnutzbare Eigengewicht geringer wird.According to the teaching of the invention, the support arm consists of a cross section Profile, the lower part of which is U-shaped and the upper part of which is dome-shaped is trained. In the event of a load, the vehicle frame becomes elastic due to the attached load pressed down as well as the support arms. This means that the top of the Support arms under pressure and the underside of the support arms under tension. Due to the proposed rounding of the upper region of the support arms, the Buckling stiffness increased so that the wall thickness can be reduced accordingly. This means that the support arm becomes lighter overall, making it unusable Dead weight becomes lower.

Wahlweise kann der obere Bereich halbrund, halboval oder ellipsenförmig ausgebildet sein, wobei bei der Ellipsenform der kleinere Radius im Scheitelpunkt liegt. Im Hinblick auf die Anordnung der Stützteller im Endbereich der Stützarme hat sich eine Querschnittsform als vorteilhaft herausgestellt, die zwei spiegelbildlich angeordnete gekrümmte Abschnitte aufweist und im Scheitelbereich ein gerader horizontaler Abschnitt liegt. Der horizontale Abschnitt wird so gering gewählt, dass zum einen der Abstützzylinder befestigt werden kann und andererseits die Beulsteifigkeit dadurch nicht reduziert wird. Vorzugsweise sind die beiden gekrümmten Abschnitte als Kreisbogenabschnitte ausgebildet, deren jeweiliger Mittelpunkt versetzt zur vertikalen Symmetrieachse liegt.The upper area can optionally be semicircular, semi-oval or elliptical be, with the elliptical shape the smaller radius is at the apex. With regard the arrangement of the support plate in the end region of the support arms has one The cross-sectional shape was found to be advantageous, the two arranged in mirror image has curved sections and a straight horizontal section in the apex region lies. The horizontal section is chosen so small that on the one hand the Support cylinder can be attached and on the other hand, the buckling stiffness is not is reduced. Preferably, the two curved sections are as Circular arc sections formed, their respective center offset from the vertical Axis of symmetry.

Die Abstützarme können als Profilschuss einteilig hergestellt oder aus zwei Schalen zusammengeschweißt werden, wobei die Schenkel des oberen und des unteren Bereiches gegeneinanderstehen.The support arms can be made in one piece as a profile section or from two shells are welded together, with the legs of the upper and lower Area against each other.

Weitere Merkmale, Vorteile und Einzelheiten der Erfindung ergeben sich aus der nachfolgenden Beschreibung von in einer Zeichnung dargestellten Ausführungsbeispielen. Es zeigen:

  • Figur 1 eine Draufsicht einer 4-Punkt-Bodenabstützung eines Fahrzeugkranes
  • Figur 2eine perspektivische Darstellung eines hinteren Teils einer Bodenabstützung mit bekanntem Querschnitt für den Stützarm
  • Figur 3a - 3d erfindungsgemäße Querschnittsformen für den Stützarm.
    • Further features, advantages and details of the invention result from the following description of exemplary embodiments shown in a drawing. Show it:
  • Figure 1 is a plan view of a 4-point floor support of a mobile crane
  • Figure 2 is a perspective view of a rear part of a floor support with a known cross section for the support arm
  • Figure 3a - 3d cross-sectional shapes according to the invention for the support arm.

    • In Figur 1 ist in einer Draufsicht eine 4-Punkt-Bodenabstützung eines Fahrzeugkranes dargestellt. Sie besteht aus einem in der Längsachse des Kranfahrzeuges liegenden Fahrzeugrahmen 1 und einem in der Mitte angeordneten Drehkran 2, auf dem der hier nicht dargestellte Oberwagen drehbar gelagert ist. In dem hier gezeigten Ausführungsbeispiel sind am Fahrzeugrahmen 1 vier Achsen 3 vorgesehen mit je zwei rechts und links angeordneten Rädern 4. Am vorderen und hinteren Teil des Fahrzeugrahmens 1, wobei der Pfeil 8 die Fahrtrichtung angibt, ist je eine Bodenabstützung angeordnet. Sie besteht in diesem Ausführungsbeispiel aus zwei teleskopartig ineinander verschiebbaren Stützarmen 5.1, 5.2 und einen am freien Ende des inneren Stützarmes 5.2 angeordneten Abstützzylinder 6 und einem daran befestigbaren Abstützteller 7. In Längsachse des Fahrzeugrahmens 1 gesehen sind zwei Bodenabstützungen hintereinander und parallel zueinander angeordnet.In Figure 1 is a plan view of a 4-point floor support of a mobile crane shown. It consists of one lying in the longitudinal axis of the crane vehicle Vehicle frame 1 and a rotating crane 2 arranged in the middle, on which the here The superstructure, not shown, is rotatably mounted. In the one shown here Exemplary embodiment, four axles 3 are provided on the vehicle frame 1, each with two right and left wheels 4. On the front and rear of the Vehicle frame 1, with arrow 8 indicating the direction of travel, is one Floor support arranged. In this embodiment, it consists of two Support arms 5.1, 5.2 which can be telescoped into one another and one at the free end of the inner support arm 5.2 arranged support cylinder 6 and one thereon attachable support plate 7. Two are seen in the longitudinal axis of the vehicle frame 1 Floor supports arranged one behind the other and parallel to each other.

    Figur 2 zeigt die Anordnung in einer perspektivischen Darstellung. In dieser Darstellung ist die hohlkastenartige Ausbildung der Stützarme 5.1, 5.2 gut zu erkennen. Ebenso der an der Stirnseite sichtbare bekannte rechteckige Querschnitt 9. Im Lastfall drückt die Last, wie der Pfeil 10 zeigt, auf den Fahrzeugrahmen 1 und dementsprechend auch auf die Bodenabstützung. Da sich die Bodenabstützung entsprechend der Richtung der Kraft 10 elastisch nach unten durchbiegt, wird die Oberseite 11 beispielsweise des inneren Stützarmes 5.2 auf Druck und die Unterseite 12 auf Zug beansprucht. Durch den bekannten rechteckigen Querschnitt 9 ist die Beulsteifigkeit gering, so dass die Wanddicke des Bereiches der Oberseite 11 entsprechend verstärkt werden muss. Das erhöht das Gewicht der Stützarme 5.1, 5.2 und dementsprechend das nicht nutzbare Eigengewicht des Fahrzeugrahmens.Figure 2 shows the arrangement in a perspective view. In this illustration is the hollow box-like design of the support arms 5.1, 5.2 can be clearly seen. Likewise the one known rectangular cross-section visible on the front side 9. In the case of a load, the load presses, as the arrow 10 shows, on the vehicle frame 1 and accordingly also on the Ground support. Since the ground support corresponds to the direction of the force 10 bends elastically downward, the top 11 is, for example, the inner Support arm 5.2 under pressure and the underside 12 under tension. By the known rectangular cross section 9, the buckling stiffness is low, so that Wall thickness of the area of the top 11 must be reinforced accordingly. The increases the weight of the support arms 5.1, 5.2 and accordingly the unusable Dead weight of the vehicle frame.

    In Figur 3 ist beispielhaft in vier Teilbildern 3a bis 3d erfindungsgemäß der Querschnitt für die Stützarme 5.1, 5.2 dargestellt. Der jeweilige untere Bereich 13 ist U-förmig ausgebildet und der jeweilige obere Bereich 14.1 bis 14.4 jeweils kalottenförmig. Im ersten Teilbild a ist der obere Bereich im Querschnitt halbrund und im zweiten Teilbild b oval. Im dritten Teilbild c ist der Querschnitt des oberen Bereiches 14.3 ellipsenförmig, wobei der kleine Radius r der Ellipse im Scheitelpunkt liegt. Eine bevorzugte Ausführungsform ist im Teilbild d dargestellt. Der obere Bereich 14.4 besteht aus zwei spiegelbildlich angeordneten gekrümmten Abschnitten 15, 15' und einem im Scheitelbereich liegenden horizontalen Abschnitt 16. Die Länge dieses Abschnittes 16 wird so klein wie möglich gewählt, um auf der einen Seite noch den in Figur 2 dargestellten Abstützzylinder 6 unterbringen zu können und auf der anderen Seite die Beulsteifigkeit nicht zu emiedrigen. Vorzugsweise sind die beiden gekrümmten Abschnitte 15, 15' Kreisbogenabschnitte, deren Mittelpunkte M1, M1' versetzt zur vertikalen Symmetrieachse 17 liegen. In FIG. 3, the cross-section for the support arms 5.1, 5.2 is shown by way of example in four partial images 3a to 3d. The respective lower area 13 is U-shaped and the respective upper area 14.1 to 14.4 is dome-shaped. In the first partial image a, the upper region is semicircular in cross section and oval in the second partial image b. In the third partial image c, the cross section of the upper region 14.3 is elliptical, the small radius r of the ellipse being at the apex. A preferred embodiment is shown in partial image d. The upper area 14.4 consists of two mirror-inverted curved sections 15, 15 'and a horizontal section 16 lying in the apex area. The length of this section 16 is chosen to be as small as possible in order to accommodate the support cylinder 6 shown in FIG. 2 on one side to be able to and on the other hand not to lower the dent resistance. The two curved sections 15, 15 'are preferably circular arc sections, the center points M 1 , M 1 ' of which are offset from the vertical axis of symmetry 17.

    Die in den Teilbildern a bis d gezeigten Querschnitte können einteilig als Hohlprofil hergestellt werden oder wie in Teilbild d dargestellt, aus zwei Schalen bestehen, deren Schenkel 18, 18', 19, 19' gegeneinander gerichtet sind. Sie werden vorzugsweise miteinander verschweißt.The cross sections shown in the partial images a to d can be made in one piece as a hollow profile be produced or, as shown in drawing d, consist of two shells, the Legs 18, 18 ', 19, 19' are directed towards each other. You will prefer welded together.

    Claims (7)

    Bodenabstützung für fahrbare Krane, Bagger und dergleichen mit mehreren am Fahrzeugrahmen des Krans, Baggers und dergleichen angeordneten Stützträgem, an dessen freien Enden je ein vertikal gegen den Boden verschiebbarer Stützeller anordnenbar ist, wobei jeder Stützträger mindestens einen zwischen einer Fahrrüstposition und einer Arbeitsrüstposition relativ zum Fahrzeugrahmen verstellbaren, hohlkastenartig ausgebildeten Stützarm aufweist, der entweder direkt am Fahrzeugrahmen gelagert oder in einem am Fahrzeugrahmen befestigten Stützkasten ein- und ausschiebbar ist,
    dadurch gekennzeichnet, dass der Stützarm (5.1; 5.2) im Querschnitt gesehen aus einem Profil besteht, dessen unterer Bereich (13) U-förmig und dessen oberer Bereich (14.1 - 14.4) kalottenförmig ausgebildet ist.    Floor support for mobile cranes, excavators and the like with a plurality of support beams arranged on the vehicle frame of the crane, excavator and the like, at the free ends of which a support plate which can be displaced vertically against the ground can be arranged, each support beam at least one between a chassis position and a work position relative to the vehicle frame has adjustable, hollow box-like support arm which is either mounted directly on the vehicle frame or can be pushed in and pushed out in a support box attached to the vehicle frame,
    characterized in that the support arm (5.1; 5.2), seen in cross-section, consists of a profile, the lower region (13) of which is U-shaped and the upper region (14.1 - 14.4) of which is dome-shaped.         Bodenabstützung nach Anspruch 1,
    dadurch gekennzeichnet, dass der obere Bereich (14.1) halbrund ist.    Floor support according to claim 1,
    characterized in that the upper region (14.1) is semicircular.         Bodenabstützung nach Anspruch 1,
    dadurch gekennzeichnet, dass der obere Bereich (14.2) halboval ist.    Floor support according to claim 1,
    characterized in that the upper region (14.2) is semi-oval.         Bodenabstützung nach Anspruch 1,
    dadurch gekennzeichnet, dass der obere Bereich (14.3) ellipsenförmig ist mit dem im Scheitelpunkt liegenden kleineren Radius (r).     Floor support according to claim 1,
    characterized in that the upper region (14.3) is elliptical with the smaller radius (r) lying at the apex.         Bodenabstützung nach Anspruch 1,
    dadurch gekennzeichnet, dass der obere Bereich (14.4) zwei spiegelbildlich angeordnete gekrümmte Abschnitte (15, 15') aufweist und im Scheitelbereich ein gerader horizontaler Abschnitt (16) liegt, der nach beiden Seiten hin tangential in den jeweiligen gekrümmten Abschnitt (15, 15') übergeht.    Floor support according to claim 1,
    characterized in that the upper region (14.4) has two curved sections (15, 15 ') arranged in mirror image and in the apex region there is a straight horizontal section (16) which is tangential to the respective curved section (15, 15' on both sides) ) transforms.         Bodenabstützung nach Anspruch 5,
    dadurch gekennzeichnet, dass die gekrümmten Abschnitte (15, 15') als Kreisbogenabschnitte ausgebildet sind, deren jeweiliger Mittelpunkt (M1; M1') versetzt zur vertikalen Symmetrieachse (17) liegt.    Floor support according to claim 5,
    characterized in that the curved sections (15, 15 ') are designed as circular arc sections whose respective center point (M 1 ; M 1 ') is offset from the vertical axis of symmetry (17).         Bodenabstützung nach einem der Ansprüche 1 bis 6,
    dadurch gekennzeichnet, dass der obere (14) und untere Bereich (13) des Profils als Schale ausgebildet ist, deren gegeneinanderstehende Schenkel (18, 18'; 19, 19') miteinander verschweißt sind.    Floor support according to one of claims 1 to 6,
    characterized in that the upper (14) and lower area (13) of the profile is designed as a shell, the opposing legs (18, 18 '; 19, 19') are welded together.
    EP01250397A 2000-11-14 2001-11-09 Ground support for mobile cranes, excavators and the like Withdrawn EP1205423A1 (en)

    Applications Claiming Priority (2)

    Application Number Priority Date Filing Date Title
    DE10056799 2000-11-14
    DE10056799A DE10056799A1 (en) 2000-11-14 2000-11-14 Floor support for mobile cranes, excavators and the like

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    Publication Number Publication Date
    EP1205423A1 true EP1205423A1 (en) 2002-05-15

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    US (1) US6685039B2 (en)
    EP (1) EP1205423A1 (en)
    JP (1) JP2002193586A (en)
    DE (1) DE10056799A1 (en)

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    WO2016087414A1 (en) * 2014-12-01 2016-06-09 Putzmeister Engineering Gmbh Mobile concrete pump having a supporting device

    Families Citing this family (2)

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    JP2003118549A (en) * 2001-10-15 2003-04-23 Mitsubishi Heavy Ind Ltd Outrigger mounting structure of cargo vehicle
    CN102275818A (en) * 2011-05-18 2011-12-14 长沙中联重工科技发展股份有限公司 Stay rope type landing leg structure and crane comprising same

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    US20020070188A1 (en) 2002-06-13
    US6685039B2 (en) 2004-02-03
    JP2002193586A (en) 2002-07-10
    DE10056799A1 (en) 2002-05-29

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