EP1121320B1 - Minikran mit gelenken zum handhaben von blöcken - Google Patents

Minikran mit gelenken zum handhaben von blöcken Download PDF

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Publication number
EP1121320B1
EP1121320B1 EP99953845A EP99953845A EP1121320B1 EP 1121320 B1 EP1121320 B1 EP 1121320B1 EP 99953845 A EP99953845 A EP 99953845A EP 99953845 A EP99953845 A EP 99953845A EP 1121320 B1 EP1121320 B1 EP 1121320B1
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EP
European Patent Office
Prior art keywords
load
minicrane
boom
mast
articulated
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
EP99953845A
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English (en)
French (fr)
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EP1121320A1 (de
Inventor
Roland Arnoux
Olivier Seuret
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Dicc Realisations Sa
Original Assignee
Dicc Realisations Sa
DICC REALISATIONS S A
Dicc Realisations Sa
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Publication of EP1121320A1 publication Critical patent/EP1121320A1/de
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Publication of EP1121320B1 publication Critical patent/EP1121320B1/de
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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
    • B66C23/18—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 specially adapted for use in particular purposes
    • B66C23/36—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 specially adapted for use in particular purposes mounted on road or rail vehicles; Manually-movable jib-cranes for use in workshops; Floating cranes
    • B66C23/48—Manually-movable jib cranes for use in workshops
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C13/00—Other constructional features or details
    • B66C13/04—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C13/00—Other constructional features or details
    • B66C13/18—Control systems or devices
    • B66C13/46—Position indicators for suspended loads or for crane elements

Definitions

  • the present invention relates to mini cranes for handling of loads such as concrete blocks or others materials, bricks, studs, used in particular for mounting walls of buildings.
  • mini cranes for handling blocks including an elongated base cart with wheels and a tray pallet holder, a rotating mast above the base plate, a boom connected in the upper part of the mast and having several hinged segments to pivot laterally along vertical axes of rotation, and a flexible lifting link one end of which is stressed in tension by a motorized traction device, the second end of which includes a device for connecting to a load.
  • the device motorized traction is controlled by a remote control.
  • the arrow has rigidity and mechanical strength compatible with the load to be transported and its lateral pivoting is limited.
  • Document GB 2 284 873 A describes a shock absorber with insert into the flexible lifting link of a crane to limit the initial tension stress of the link when taking a charge.
  • the shock absorber includes a coil spring of compression and shock absorber, mounted in parallel with each other to the other, the whole being engaged between the flexible link and the charge. There is no spring stroke limit stop. AT each load, the spring undergoes its complete deformation corresponding to the weight of the load, which requires increasing as much the amount of flexible lifting link winding on the crane motor drum.
  • a problem proposed by the present invention is to design a new mini-crane structure allowing considerably facilitate and speed up the positioning of blocks relative to each other even when the blocks are relatively heavy.
  • Another object of the invention is to improve the alignment blocks, avoiding successive drifts in positioning the blocks relative to each other.
  • Another object of the invention is to design such a mini crane which is particularly handy and stable, allowing very free movement of the blocks during their handling in a large accessible area.
  • Another object of the invention is to design such a mini crane which is easily removable for transport in several parts which can be handled separately.
  • Another object of the invention is to design such a mini crane which has a reduced footprint, while allowing manipulate a load in practically all points of a space wide around the mini crane, especially over a relatively high large, or in small and limited spaces.
  • a mini crane for handling loads such as blocks comprises a base, a mast surmounting the base, a boom connected in the upper part of the mast and having at least two sections hinged to each other to pivot laterally along vertical axes of rotation, a counterweight for load balancing, a flexible lifting link, a first of which end is stressed in tension by a motorized device traction and the second end of which comprises a device for load connection; the mini crane also includes a device elastic linkage at the threshold, having a markedly greater stiffness lower than the intrinsic stiffness of the mast structure and boom for load suspension efforts, and suitable for ensure elastic suspension of the load beyond a threshold of predetermined load.
  • the elastic threshold connection device further comprises damping means for damping the vertical oscillations of the load during its elastic suspension by the device elastic threshold.
  • the device elastic threshold connection includes a distal boom section, articulated on an intermediate boom section to oscillate vertically along a horizontal axis of oscillation, stressed in pivoting upwards by a compression spring, and retained by stop means which limit its pivoting upwards.
  • a damping device can advantageously be arranged in parallel on the spring of compression to dampen vertical section oscillations arrow distal.
  • the load link device can advantageously be associated with a laser beam receiver or luminous whose position is identified and fixed relative to the charge, giving the user precise information on the relative position of the load with respect to a fictitious plane of vertical marking and parallel to the wall to be mounted created by a radius laser or rotating light defining an alignment mark of the loads.
  • the device connection to the load is a self-clamping pliers, having two jaws in form of substantially parallel rods which can be engaged vertically in two parallel holes opening on the face upper load, the first jaw being fixed to a first end of a first horizontal arm, the second jaw being mounted at the first end of a second arm articulated by its first end on the second end of the first horizontal arm and connected by its second end to the flexible link midway between the bits.
  • the arrow comprises at minus a distal section articulated in free pivoting of approximately 150 ° right and left along a first vertical pivot axis on an intermediate section itself articulated in free pivoting approximately 150 ° to the right and to the left along a second vertical axis of pivoting on a proximal section rotatably carried by the mast according to an intermediate zone around a vertical axis of rotation and of which the opposite posterior end is connected to the counterweight.
  • a mini crane according to the invention comprises a base 1, a mast 2 surmounting the base 1, an arrow 3 connected in the upper part 4 of the mast 2, a counterweight 5 to balance the load 6, a flexible link of lifting 7 of which a first end is stressed in tension by a motorized traction device 8, the second end of which includes a device for connecting to the load 9.
  • the base 1 includes a central element 10 in cross with four branches 11, 12, 13 and 14 respectively, in which slide radially of the respective telescopic extensions 15, 16, 17 and 18 provided with swivel wheels such as the wheel 19.
  • the base 1 forms a square base trolley which can move by rolling On the ground.
  • Mast 2 in the embodiment illustrated in Figures 1 and 2, consists of a lower tube 20, for example with cross-section square, vertically oriented and integral with a base tube 21 pivotally mounted in the center of the central structure 10 of the base 1 along a first vertical axis of rotation 22.
  • the mast 2 can pivot on base 1 around the first vertical axis of rotation 22 with an appropriate braking torque.
  • the mast 2 can advantageously have a telescopic structure formed of several sliding sections to adjust its length.
  • a sliding upper tube 23 can be engaged at sliding in or on the lower tube 20, the height of the mast being determined by keys 24 engaged transversely in corresponding holes of the lower tube 20 and opposing the vertical sliding of the sliding upper tube 23.
  • the boom 3, connected in the upper part 4 of the mast 2, comprises a first proximal section 31 whose end posterior 32, opposite the development direction of the arrow, is connected to the counterweight 5 by a tensioner 51 to length adjustable.
  • An intermediate zone of the proximal section 31 comprises a stirrup 33 engaged on an upper horizontal pivot axis 25 fixed in the upper part 4 of the mast 2.
  • the proximal boom section 31 is articulated on the mast 2 along the upper horizontal pivot axis 25, and its tilt is adjustable between at least a first tilt generally horizontal shown in solid lines in the figure 1, and a second upward oblique inclination illustrated in dotted on the same figure 1.
  • the inclination horizontal is used when the sliding upper tube 23 of the mast 2 is tucked into or on the lower vertical tube 20, and the upward oblique tilt is used when the tube sliding top 23 is deployed, to reach the height maximum load support.
  • the section arrow 31 proximal 3 includes an intermediate oblique connection 34 as illustrated in FIG. 1, oriented in such a way that, when the proximal section 31 is horizontal, the end anterior 35 of the proximal section 31 is also horizontal; when the proximal section 31 is in an ascending oblique position as shown in dotted lines, we return the end anterior 35 by inversion of the intermediate oblique link 34, so that the front end 35 is horizontal as shown in dotted lines. So the oblique bond intermediate 34 allows the end to be oriented horizontally anterior 35 of the proximal section 31 in both determined inclinations of the arrow 3.
  • the arrow 3 further comprises a distal section 30 articulated in free pivoting, for example about 150 ° to the right and to the left, along a first vertical pivot axis 36 on a intermediate section 37 itself articulated in free pivoting, by example of approximately 150 ° to the right and to the left, along a second axis vertical pivot 38 provided at the front end 35 of the proximal section 31.
  • the intermediate section 37 can pivot laterally around the second vertical pivot axis 38 as illustrated by the double arrow 138.
  • the distal section 30 can pivot laterally around the first vertical pivot axis 36 as illustrated by the double arrow 136. This produces an arrow which folds in a horizontal plane of approximately 150 ° to the right and left, in one or more sections.
  • the counterweight 5 is carried by a support 50 secured to the base tube 21, and thus pivots with the entire mast 2 and the arrow 3 around the vertical axis of rotation 22 of the base 1.
  • the counterweight 5 advantageously consists of a stack of blocks ballast, the number of which is chosen according to the load 6 intended to be carried by the mini crane. This provision ensures good stability of the crane, thus increasing its reach especially in the lateral directions. The manipulation of loads is thus facilitated in a wide access area, without having to move the base 1.
  • the invention optimizes both the inertia and the reach of the crane: for small lateral displacements, the boom joints around pivot axes 36 and 38 significantly reduce the inertia of boom parts or sections to move for movement; for larger trips, the rotation of the entire boom around the first pivot axis 22 is relatively easy, simultaneously driving the counterweight 5, that is to say without moving the base 1, while retaining good stability. In this case, the ability to pivoting of the boom sections relative to each other eliminates the inertia effect of the counterweight at the end of movement.
  • the general structure of the mini crane thus defined includes several elements that can be detachable and manipulated separately, namely the base 1 with its base tube 21, the mast 2 in several parts from which you can at least remove the tube sliding upper 23, the arrow 3 in several parts which can be detached from mast 2 by removing the upper horizontal axis 25, and from which the sections 31, 37 and 30 can also be dissociated, and the counterweight 5.
  • the distal section 30 may advantageously have a adjustable length, providing a telescopic structure with several sections 39, 40 and 42 sliding longitudinally in each other, and lockable in longitudinal position according to the desired length.
  • the length can be chosen according to load 6 to carry. For light loads, the length can be maximum. For heavier loads, you can shorten the distal section 30 of arrow.
  • the structure constituted by the mast 2 and the boom 3 has an intrinsic stiffness for the suspension forces of the load 6, that is to say that this structure is rigid, for avoid exaggerated deformation when carrying a load 6.
  • a connecting device is provided.
  • elastic with threshold having a markedly lower stiffness than the intrinsic stiffness of the mast 2 and boom 3 structure for load suspension efforts 6.
  • the connecting device elastic threshold is suitable for ensuring elastic suspension of the load 6 beyond a predetermined load threshold. This device introduces flexibility into the support of the load 6, while limiting the elastic deformation below an amplitude determined so as not to significantly prolong the stages of taking over and releasing the load.
  • the threshold elastic connection device is performed by providing that the distal section 30 of the arrow 3 is articulated on the intermediate section 37 of boom 3 along an axis horizontal oscillation 41, allowing the oscillation of the section arrow 30 distal in a vertical plane upwards and bottom as illustrated by the double arrow 141.
  • the distal section 30 of arrow 3 is biased upwards by a spring compression 43, advantageously associated with a damping device 44 arranged in parallel on the compression spring 43 for dampen the pivoting oscillations of the distal section 30 by arrow 3.
  • the distal section 30 of arrow 3 In its oscillation around the horizontal axis oscillation 41, the distal section 30 of arrow 3 is retained by stop means which limit its pivoting upwards.
  • the stopping means may consist of a link 45 such as a cable with adjustable length, limiting the elongation of the compression spring 43.
  • a link 45 such as a cable with adjustable length, limiting the elongation of the compression spring 43.
  • the threshold of predetermined load is advantageously chosen to be slightly less than the weight of the load 6 to be handled. Adjustment is made by adjusting the length of the cable 45.
  • the compression spring 43 and the damper 44 are engaged in an articulated manner between a point of articulation lower 46 intermediate of the distal section 30 of arrow 3 and a fixed joint 47 provided on a lower cradle 48.
  • the cradle lower 48 is mounted at the front end of the section intermediate 37 of boom 3 pivoting along the vertical axis of pivoting 36 and itself carries the horizontal axis of oscillation 41 of the distal section 30 of arrow 3.
  • the motorized traction device 8 is a chain winch associated with a lower return roller 81 mounted on the lower cradle 48, and to an extreme deflection roller 82 mounted at the end of the distal section 30 arrow 3.
  • a chain box 80 is arranged under the winch 8 to receive the surplus of chain.
  • the flexible lifting link 7 is a chain stressed in traction by the winch 8 and the second end carries the load connection device 9.
  • the winch 8 is arranged in front of the axis vertical pivot 36.
  • the winch 8 can be disposed behind the vertical pivot axis 36, always carried by the lower cradle 48.
  • the intermediate position 83 is used for example to carry a heavier load, without risk of tipping the crane to the same counterweight 5.
  • FIG. 8 an embodiment has been illustrated. slightly different according to the invention. We find the same essential elements, identified by the same reference numbers, and which will therefore not be described again.
  • a first difference is the position of the winch 8, behind the first axis pivot 36.
  • a second difference is the modular structure of the boom, in particular the telescopic construction of the section proximal 31, with a first segment 310 articulated on the mast 2 and connected by an oblique link 311 to a second segment 312 which itself carries a third segment longitudinally 313.
  • Figure 8 illustrates the deployment possibilities, by vertical orientation of the boom and longitudinal sliding of the third segment.
  • mini crane can thus adapt to very different configurations and sizes of premises, for work for example inside a corner, or against a wall, or between the beams, or in a corridor, or at great height.
  • the device for connecting to the load. 9 is associated with a laser beam receiver 90 whose position is marked and fixed with respect to load 6 such as a block.
  • the laser beam receiver 90 is mounted sliding on a lateral rod 91 of the connection device to the load 9, and the user brings it to bear against a face corresponding side 60 of the load 6.
  • the receiver laser beam 90 gives the user information about the relative position of the load 6 with respect to a laser beam 92 emitted by a ray generator ensuring for example a scanning vertical, generating a fictitious plane which. constitutes a benchmark load alignment.
  • the laser system can be replaced by a light beam device, or by any other device providing a fictitious or real location plan, for example: a network, bundle or trellis of stretched wires and a means for adjusting the distance between the load and the marking plane materialized by the son ; a form erected vertically and held in position.
  • a light beam device or by any other device providing a fictitious or real location plan, for example: a network, bundle or trellis of stretched wires and a means for adjusting the distance between the load and the marking plane materialized by the son ; a form erected vertically and held in position.
  • the load connection device 9 is a self-clamping clamp, having two jaws 93 and 94 in the form of substantially parallel rods can be engaged vertically in two parallel holes 61 and 62 formed in the load 6 and opening onto the upper face 63 of the load 6.
  • the first jaw 93 is fixed to a first end of a first horizontal arm 95, the second end of which carries a transverse horizontal articulation axis 96.
  • the second jaw 94 is mounted at the first end of a second arm 97.
  • the second arm 97 is articulated by its first end on the first horizontal arm 95 along the horizontal articulation axis transverse 96, and is connected by its second end to the link flexible 7 midway between jaws 93 and 94.
  • the load connection device 9 further comprises handles guide 98 and 99: the first guide handle 98 is secured to the first horizontal arm 95.
  • the second handle of guide 99 is integral with the second arm 97.
  • the load connection device 9 further carries a device for remote control 100 for controlling the motorized device of traction 8.
  • the remote control device 100 comprises at minus a button 101 to control the winch 8 in the direction of lifting of the load, and a button 102 to control the winch 8 in the direction of lowering the load.
  • the user When using to mount a wall, the user holds the linkage device to the load 9 by the two handles 98 and 99 guides.
  • the user brings the connection device to load 9 to height of a load 6 to take, the horizontal displacement of the load connection device 9 simply by traction thanks to the possible pivoting of the boom sections 3 relative to each other and to the possible pivoting of the arrow 3 relative to the base 1.
  • the user engages the jaws 93 and 94 in the parallel holes 61 and 62 of the load 6, then causes the flexible link 7 connected to the load to be pulled operation of the button 101 by pivoting the second arm 97 to tighten jaws 93 and 94.
  • the compression spring 43 compresses to balance the weight of the load 6.
  • the load 6 is then lifted and moved by the user to its chosen position on the wall, by simply pivoting the boom sections 3 relative to each other and pivoting arrow 3 on base 1. During its movement, the load 6 is resiliently supported by flexible link 7, but the damper 44 reduces the possible vertical oscillations by the load 6.
  • the user can then lower the load 6 by actuation of button 102 until it comes into contact with the surface on which it must rest, guiding the load thanks to the guide handles 98 and 99 so as to align it with the other wall blocks. Alignment is controlled by signal produced by the laser beam receiver 90. As soon as the charge 6 touches the surface on which it is to rest, the user stops actuation of the winch 8. Thanks to the elasticity of the spring compression 43, the load then presses on the lower surface only part of its weight. The friction of the load 6 on the lower surface is thus reduced. It facilitates considerably the lateral displacement of the load to perfect its position adjustment. When this position is correct, the user presses the button 102 again to cancel the pulling on the load 6.
  • the quantity of flexible link 7 to be unwound to cancel the traction on load 6 is reduced thanks to the threshold action of the cable 45, which limits the amplitude of the elastic deformation.
  • the user can then extract the device for connecting to the load 9 by tilting the handles of guidance 98 and 99 and actuation of the button 101.
  • the modular structure of the crane which can be dismantled several manipulable portions, constitutes in itself a invention can be used independently of others features described.
  • the laser beam receiver 90 can be used independently of other features such as the elastic connection to threshold or the particular device of connection to the load 9.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Automation & Control Theory (AREA)
  • Jib Cranes (AREA)
  • Seal Device For Vehicle (AREA)
  • Control And Other Processes For Unpacking Of Materials (AREA)
  • Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
  • Load-Engaging Elements For Cranes (AREA)

Claims (11)

  1. Minikran zum Handhaben von Lasten (6), wie z.B. Blöcken, mit einer Basis (1), einem Mast (2), der von der Basis (1) absteht, einem Ausleger (3), der an einem oberen Abschnitt (4) des Mastes (2) angeschlossen ist und mindesten zwei Teilstücke (30, 31) enthält, die gelenkig miteinander für ein seitliches Schwenken (136, 138) längs vertikalen Drehachsen (36, 38) verbunden sind, einem Gegengewicht (5) zum Ausgleich der Last (6), einem flexiblen Hubteil (7), dessen eines Ende in Zugverbindung mit einer motorisierten Zugeinrichtung (8) verbunden ist und dessen anderes Ende eine Verbindungseinrichtung (9) für die Last aufweist, dadurch gekenngezeichnet, daß er eine elastische Verbindungseinrichtung mit Schwellwert (30, 43, 45) enthält, die eine deutlich geringere Steifigkeit aufweist als die innere Steifigkeit der Struktur des Mastes (2) und des Auslegers (3) bezüglich der Tragekräfte für die Last (6), und daß sie so ausgebildet ist, daß sie eine elastische Halterung für die Last (6) oberhalb eines vorbestimmten Last-Schwellwertes sicherstellt.
  2. Minikran nach Anspruch 1, dadurch gekennzeichnet, daß die elastische Verbindungseinrichtung mit Schwellwert (30, 43, 45) zusätzlich Dämpfungsmittel (44) enthält zum Dämpfen vertikaler Schwingungen der Last (6) während ihrer elastischen Halterung durch die elastische Verbindungseinrichtung mit Schwellwert (30, 43, 45).
  3. Minikran nach einem der Ansprüche 1 oder 2, dadurch gekennzeichnet, daß die elastische Verbindungseinrichtung mit Schwellwert einen distalen Auslegerabschnitt (30) aufweist, der gelenkig an einem Mittelabschnitt (37) des Auslegers angebracht ist, für eine vertikale Schwingung (141) längs einer horizontalen Schwingungsachse (41), der für eine Drehung nach oben an einer Druckfeder (43) befestigt ist und durch Anschlagmittel (45), die seine Schwenkbewegung nach oben begrenzen, zurückgehalten ist.
  4. Minikran nach Anspruch 3, dadurch gekennzeichnet, daß eine Dämpfungseinrichtung (44) parallel zur Druckfeder (43) angeordnet ist, zum Dämpfen von vertikalen Schwingungen (141) des distalen Abschnittes (30) des Auslegers (3).
  5. Minikran nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß er einer Einrichtung zugeordnet ist, die eine Peilungsebene erzeugt und Mittel zum Regeln des Abstandes zwischen der Peilungsebene und einer Last (6), wie z.B. einem Block.
  6. Minikran nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß die Verbindungseinrichtung (9) ein selbstschließender Greifer ist, der zwei stangenförmige Spannbacken (93, 94) aufweist, die im wesentlichen parallel liegen, die vertikal in zwei Löcher (61, 62) eingreifen können, die an der Oberseite (63) der Last (6) abgetragen sind, wobei die erste Spannbacke (93) an einem ersten Ende eines ersten horizontalen Armes (95) befestigt ist, wobei die zweite Spannbacke (94) an einem ersten Ende eines zweiten Armes (97) angebracht ist, die mit ihrem ersten Ende gelenkig an dem zweiten Ende des ersten horizontalen Armes (95) angebracht ist und mit ihrem zweiten Ende am flexiblen Verbindungsteil (7) im Mittelabstand zwischen den Spannbacken (93, 94) verbunden ist.
  7. Minikran nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß der Ausleger (3) mindestens einen distalen Abschnitt (30) aufweist, der frei schwenkbar um ca. 150° nach rechts und nach links längs einer ersten vertikalen Schwenkachse (36) an einem Zwischenabschnitt (37) angebracht ist, der seinerseits frei schwenkbar um ca. 150° nach rechts und nach links längs einer zweiten vertikalen Schwenkachse (38) an einem proximalen Abschnitt (31) angebracht ist, der drehbar an einer Zwischenzone am Mast (2) um eine erste vertikale Drehachse (22) gelagert ist und dessen hinteres gegenüberliegendes Ende (32) am Gegengewicht (5) befestigt ist, wobei das Gegengewicht (5) und der proximale Abschnitt (31) eine Einheit bilden, die um die erste vertikale Drehachse (22) schwenken kann.
  8. Minikran nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, daß der Mast (2) aus mehreren ineinander gleitenden Abschnitten (20, 23) zur Einstellung seiner Länge gebildet ist.
  9. Minikran nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, daß der proximale Abschnitt (31) des Auslegers an dem Mast (2) schwenkbar um eine obere horizontale Schwenkachse (25) gelagert ist, wobei seine Neigung zwischen mindestens zwei vorbestimmten Stellungen einstellbar ist, und er ein schräges Zwischenverbindungsteil (34) aufweist, das eine horizontale Ausrichtung des vorderen Endes (35) des proximalen Abschnittes (31) in der einen oder anderen vorbestimmten Schrägstellung gestattet.
  10. Minikran nach einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, daß der Ausleger eine modulare Struktur aus teleskopisch und/oder auswechselbaren Elementen aufweist.
  11. _ Minikran nach einem der Ansprüche 1 bis 10, dadurch gekennzeichnet, daß er durch die demontierbare Zusammensetzung mehrerer Elemente gebildet ist, die separat gehandhabt werden können, die eine Basis (1), einen Mast (2) aus mehreren Teilen (20, 23), einen Ausleger (3) aus mehreren Teilen (30, 31, 37) und ein Gegengewicht (5) aufweisen.
EP99953845A 1998-10-07 1999-10-06 Minikran mit gelenken zum handhaben von blöcken Expired - Lifetime EP1121320B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR9812766 1998-10-07
FR9812766A FR2784369B1 (fr) 1998-10-07 1998-10-07 Minigrue articulee pour manutention de blocs
PCT/EP1999/007797 WO2000020321A1 (fr) 1998-10-07 1999-10-06 Minigrue articulee pour manutention de blocs

Publications (2)

Publication Number Publication Date
EP1121320A1 EP1121320A1 (de) 2001-08-08
EP1121320B1 true EP1121320B1 (de) 2003-05-14

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Application Number Title Priority Date Filing Date
EP99953845A Expired - Lifetime EP1121320B1 (de) 1998-10-07 1999-10-06 Minikran mit gelenken zum handhaben von blöcken

Country Status (6)

Country Link
EP (1) EP1121320B1 (de)
AT (1) ATE240255T1 (de)
AU (1) AU1039100A (de)
DE (1) DE69907940T2 (de)
FR (1) FR2784369B1 (de)
WO (1) WO2000020321A1 (de)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2723950A1 (de) * 1977-05-27 1978-11-30 Lehnen Axel Holger Vermietung Verwendung eines flurfoerdergeraets
GB2284873A (en) * 1993-12-15 1995-06-21 Francis Watt Hanging load shock absorber
DE29705154U1 (de) * 1997-03-21 1997-06-12 Schoch Rolf Flurförderfahrzeug
DE29707422U1 (de) * 1997-04-24 1997-06-26 Zasche Foerdertechnik Gmbh Manipulator

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Publication number Publication date
ATE240255T1 (de) 2003-05-15
DE69907940D1 (de) 2003-06-18
EP1121320A1 (de) 2001-08-08
FR2784369B1 (fr) 2000-12-01
FR2784369A1 (fr) 2000-04-14
AU1039100A (en) 2000-04-26
DE69907940T2 (de) 2004-03-11
WO2000020321A1 (fr) 2000-04-13

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