US3638805A - Mobile chassis for carrying a tower crane - Google Patents

Mobile chassis for carrying a tower crane Download PDF

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Publication number
US3638805A
US3638805A US858691A US3638805DA US3638805A US 3638805 A US3638805 A US 3638805A US 858691 A US858691 A US 858691A US 3638805D A US3638805D A US 3638805DA US 3638805 A US3638805 A US 3638805A
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United States
Prior art keywords
chassis
running gear
arms
pivoted
crane
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Expired - Lifetime
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US858691A
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English (en)
Inventor
Andre Garnier
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Manitowoc Crane Group France SAS
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Potain SA
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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
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C2700/00—Cranes
    • B66C2700/03—Cranes with arms or jibs; Multiple cranes
    • B66C2700/0321—Travelling cranes
    • B66C2700/0357—Cranes on road or off-road vehicles, on trailers or towed vehicles; Cranes on wheels or crane-trucks
    • B66C2700/0378—Construction details related to the travelling, to the supporting of the crane or to the blocking of the axles; Outriggers; Coupling of the travelling mechamism to the crane mechanism

Definitions

  • ABSTRACT A traveling crane is provided with three bogies, one front and [52] US. Cl. ..212/38, 2 1 2/145, two rear to provide for the Support and transport of he Crane [511 Int. Cl. ..B60s 9/12, 862d 61/08 35" gi d 1 1???
  • the rear bogies may be H 6 150 mounted at opposite ends of a transverse beam or may be mounted on the free ends of two pivoted arms. In either case, the bogies are connected by means of a pivoted lever arrange- [56] References Cited ment to provide for leveling of the chassis.
  • the bogies may be UNITED STATES PATENTS provided with endless tracks or wheels.
  • the present invention relates to a mobile chassis intended to carry a tower crane, this chassis being either self-propelled or drawn.
  • the invention principally concerns the construction of the carrying and controlling assembly as well as the means with which it is provided to carry out the transportation and the site erection of tower cranes which may be rapidly dismantled.
  • the present invention has the aim of avoiding these disadvantages by dispensing with the installation of tracks and reducing the time or erection of the crane on the site. In addition, it allows the assembly to be moved for short distances, even on sloping ground, without having to fold up the crane.
  • a crane chassis is mainly noteworthy in that it comprises a base fitted at the front with a running gear either of wheels or endless tracks mounted on a ball joint, and, at the rear, with two sets of running gear each carried on its own telescopic hydraulic system, as well as with two lateral arms situated one on each side of the base between the front and rear running gear, each of these arms pivoting around a vertical axis and carrying, at its free end, a shoe to bear on the ground controlled by a hydraulic jack. All the running gears are detachable, and notably the rear running gears may be replaced by wheels with pneumatic tires allowing transport on the road.
  • the three running gears each comprise an endless track, at least one of which is adapted to drive by electric or hydraulic means.
  • the three running gears are constituted at the rear by two articulated bogies with several tired wheels, and at the front by a driving and steering bridge mounted on a balance beam.
  • the two rear running gears may be either mounted at the two ends of a fixed erosspiece of the chassis base, or arranged each one at the rear end of a swinging arm pivoted by a vertical shaft to this same base.
  • the mounting of the shoes of the stabilizing arms on jacks allows these arms to be used not only to maintain the crane in its place of working, but also to raise either the front or the rear of the chassis in order to fit or to remove tired wheels intended for road transport.
  • the two stabilizing arms are lowered towards the front; on the contrary, they are brought towards the rear if it is desired to raise this part of the chassis in order to fit or to remove the rear running gear.
  • FIG. 1 is a view in elevation of a chassis according to the invention, which is mounted on endless tracks and carries an extended crane, the stabilizing arms not being shown for clarity in the drawing,
  • FIG. 2 is a corresponding plan view, showing the stabilizing arms extended
  • FIG. 3 corresponds to FIG. 1 showing the arrangement when the extended crane is moving on sloping ground
  • FIG. 4 is a similar front view
  • FIG. 5 shows the position of the stabilizing arms, the shoes of which are raised while the crane is moved
  • FIG. 6 is a corresponding plan view showing schematically the support polygon of the assembly when the shoes ofthe stabilizing arm are raised
  • FIG, 7 corresponds to FIG. 5 after the stabilizing shoes are lowered on to the ground
  • FIG. 8 is a plan view showing the support polygon thus obtained.
  • FIGS. 9 to 14 show the successive phases of the operation of attaching the chassis according to the invention behind a road tractor intended to transport the chassis in the fashion of a semitrailer
  • FIG. 15 is a plan view ofa variant intended to allow a lateral movement of the chassis
  • FIG. 16 is a plan view of another possible manufacturing variant of a chassis according to the invention, in which the rear endless tracks are mounted on two swinging arms,
  • FIGS. 17, 18 and 19 illustrate the successive phases of putting the chassis of FIG. 16 on to the road.
  • FIG. 20 is a plan view of an extra variant ofa chassis according to the invention, in which the running gears are constituted by tired wheels,
  • FIG. 21 is an elevation in part section of one of the bogies carrying the rear wheels
  • FIG. 22 is a corresponding plan view
  • FIG. 23 is a lateral section of this same bogy
  • FIG. 24 shows a possible method of construction of the latching system of the rear arms in the position for movement on the site
  • FIG. 25 is a similar view to FIG. 24 when the arm is aligned in the axis of the chassis for the position for road transport,
  • FIGS. 26 and 27 show the successive phases of the operation of attaching this variant behind a road transport tractor
  • FIGS. 28, 29 and 30 show a variant in which the crane on pneumatic tires is self-propelling
  • FIG. 31 shows, in order to show the disadvantages, what would be the mounting of the rear endless tracks on a known system of telescoping
  • FIG. 32 shows another known system of telescoping
  • FIG. 33 shows, on the contrary, the system of telescoping used according to the invention, with its particular advantages
  • FIG. 34 illustrates the kinematics ofthe device according to the invention, showing the arrangement of two extreme positions.
  • the chassis shown in FIGS, 1 to 14 comprises a horizontal base 1 fitted with a rear crossbeam 2.
  • the crane proper formed by a mast 3 and ajib 4, is fitted to a revolving pedestal 5 carried by a directional sprocket wheel 6 placed in the center of the base 1.
  • the base 1 of the chassis carries a balljoint 7 which bears on a endless track assembly formed by a block 8 and two tracks 9.
  • the block 8 encloses known driving methods, hydraulic or electric, not shown, which enable the endless track assembly 8-9 to propel the chassis.
  • this track assembly can steer, since it is linked to the base I by the balljoint 7.
  • the crossbeam 2 is preferably linked to the base 1 by pegging or by means of bolts, which will allow rapid dismantling.
  • At each end of the crossbeam 2 is mounted supporting endless track gear comprising a block 10 placed between two tracks 11 (FIG. 2).
  • Each endless track assembly 10-11 is linked to the corresponding end of the crossbeam 2 by a raising system linked by a connecting arm 12 and a jack 13, of the kind shown in FIG. 33, 30 and 31.
  • a raising mechanism which allows the position of each track assembly 10-11 to be varied in height in relation to the crossbeam 2, has been designated by the global reference 14.
  • a stabilizing arm 16 is pivoted its free end carrying a vertical jack 17 fitted at its lower end with a shoe 18 for bearing on the ground.
  • Some detachable connecting arms 19 and 20, pivoted at their two ends, allow the locking of the orientation of the rear track assemblies 10-11 and of the stabilizing arms 16 respectively, in relation to the chassis 1-2.
  • a hydraulic control center not shown, for the control of the driving endless track gear 9, as well as for operating the stabilizing jacks l7 and the raising jacks 13 of the supporting mechanisms 14.
  • the controls of these different services are grouped on the side of the chassis in such a way as to be readily accessible.
  • the crane 3,4 may be moved while remaining extended, benefiting from a large triangular support polygon 21 (FIG. 6). During these movements, the jacks 17 are contracted and the shoes 18 raised above the ground (FIG. On the other hand, the stabilizing arms 16 are pegged in position, ready for chocking, carrying the raised shoes 18.
  • the rear track assemblies 11 are designed in such a way as to be able to move independently in height, due to the mechanisms 14. This allows the base 1 to be kept constantly horizontal, whatever the slope of the ground, longitudinally (FIG. 3) or in the transverse direction (FIG. 4).
  • the rear track assemblies 10, 11 are also connected by ball joints to the crossbeam 2, in order to accommodate themselves to any form of ground.
  • the reaction connecting rods 19 attach them to the chassis to hold them in a position parallel to the longitudinal axis of the machine as a whole.
  • the machine may be immobilized in its workplace by holding the base 1 in a perfectly horizontal position in all cases (FIGS. 7 and 8). For this, an adjustment is made in the height of the jacks 17 of the two shoes 18 bearing on the ground, and of the jacks 13 of the rear suspension mechanism 14. Since the control of these four jacks are independent, it will be understood that this chocking operation is almost instantaneous.
  • the four bearing points on the ground are constituted by two shoes 18 and two track assemblies 10, 11 so that the crane has then available a large rectangular support polygon 22.
  • the axis of the crane mast 3 and of the sprocket-wheel 6 is situated in practice in the middle of this rectangular polygon 22.
  • one of the essential objects of the invention derives from the fact that the times of installation and of setting up for transportation are very short, the operations necessary for this work being particularly simple. in fact, given that such a machine eliminates all the work of preparing the ground and of installing rails, it would be unthinkable for the time and money thus gained to be partially lost by having a long setting-up time.
  • the crane 3, 4 being preferably of a rapid fixing type, it is necessary to retain rapid setting up for the whole unit. All this is particularly well illustrated by the process of dismantling which will now be described, to pass from the working position to the road position (FIGS. 9 to 14).
  • the jib 4 and the mast 3 are folded horizontally on the base 1 (FIG. 9).
  • the machine is normally checked on the ground.
  • a towing beam 23 is fixed to the front of the platform 5.
  • the front track assembly 8,9 is disconnected (FIG. 10) by lowering the stabilizing shoes 18 to bear on the ground and allow the front of the chassis to be raised.
  • This front track assembly 8, 9 is then dismantled, by means of the rapid unpegging with the help of a known auxiliary handling machine not shown.
  • the two rear track assemblies 10, 11 are dismantled, then the crossbeam 2 which is freed by the rapid unpegging mechanism. Then a set of bogies 27 mounted on tired wheels 28 is brought under the mast gear (FIG. 14), then the rear of the chassis is lowered by raising the stabilizing shoes 18 so as to bring the coupling components of the body 27 in line with those fitted to the rear of the pedestal 5. This bogy 27 and the pedestal 5 are joined together, then the stabilizing shoes 18 are raised completely and the pivoting arms 16 are brought against the rear of the base 1, where they are locked.
  • the tractor vehicle 24 can transport the crane on the road like a semitrailer.
  • FIG. 15 a first possible variant designed to allow the assembly to move laterally on the site. This has, among others, the advantage of avoiding steering maneuvers which require a fairly large working area. This likewise allows the crane to draw back or to advance without its having to be maneuvered, whatever may be its starting position.
  • the originality of this variant consists in being able to fix the direction of the front and rear tracks with respect to the axis of the chassis.
  • this direction was perpendicular to the axis of the chassis, but it is evident that one could also choose a different angle.
  • the linear speed of the front and rear tracks 9 and 11 must be identical.
  • the braces 29 and 30 may be replaced by jacks which remain in place.
  • these jacks are sufficiently powerful, the operation of raising the chassis may be avoided and the direction of the track assemblies 8, 9 and 10, 11 may be set while they remain on the ground.
  • FIGS. 16 to 19 Another constructional variant in which the rear of the base 1 is no longer attached to a crossbeam 2, but it fitted with two swinging arms 31 opposite to the stabilizing arms 16 and fixed symmetrical to them.
  • Each arm 31 is pivoted on a vertical shaft 32 carried by the rear of the base 1. At its opposite end, it supports the corresponding rear track assembly 10, 11.
  • the mounting of each track assembly 10, 11 on its arm 31 is carried out by a suspension and raising mechanism 14.
  • Detachable connecting rods 33 link the arms 31 to the base 1 and hold them in position.
  • this arrangement does not change the area of the triangular support polygon 21 or the rectangular polygon 22 according to whether the shoes 18 are raised in the movement position (lower half of FIG. 16) or lowered in the chocking position (upper half of FIG. 16).
  • this variant with two arms 31 is able to be adapted to the mounting as in FIG. 15, that is to say allowing the track assemblies 8, 9 and 10, 11 a direction perpendicular to the longitudinal axis 34 of the chassis.
  • FIGS. 17, 18 and 19 illustrate the operation to bring this variant to the road transport position.
  • the dismantling of the front track assembly 3, 9 and the coupling of the beam 23 to the saddle of the tractor 24 is carried out as previously. From this position (FIG. 17) the stabilizing arms 16 are brought backwards (arrows 26) and their shoes 18 are lowered to the ground so as to raise the rear of the chassis including the arms 31 and the track assemblies 10, 11. These latter may then be dismantled, then the arms 31 are pivoted backwards (arrows 35, FIG. 18) to bring them in line with the chassis assembly. They are held in this position by appropriate locking ofthe connecting rods 33.
  • FIGS. to 27 Another possible constructional variant in which the sets of tracks have been replaced by sets of tired wheels.
  • Such a design loses the advantage of the sets of tracks (the possibility of movement over any ground, the reduction of the pressure on the ground, the possibility of keeping the crane vertical during movement), but it is, on the other hand, of undeniable interest in the rapidity of setting up on the site, for altering to the transport position, and finally regarding the simplification of construction of the chassis.
  • the track gears are designed for a machine for use on any ground, whilst if the machine is needed to move only on prepared ground, relatively flat and without excessive slope, the sets of tired wheels give complete satisfaction.
  • the chassis shown in FIGS. 20 to 27 is similar to that of the variant shown in FIGS. 16 to 19.
  • the front track assembly is replaced by a driving and steering bridge 37 fitted with two tired wheels 38.
  • This bridge 37 is mounted on a balance beam, in a known arrangement, which allows it to encompass all variations in ground. It may be driven by any known propulsion system, for example, by hydraulic or electric motor or by a heat engine.
  • a hydraulic jack, not shown, ensures directional control of the wheels 38.
  • each body 39 comprises a balance beam 44, pivoted at its center on a shaft 40 to accommodate variations in the ground, and it carries two tired wheels 41.
  • a vertical jack 42 fitted in its lower part with a shoe 43. By expanding the jack 42, this shoe 43 is applied against the ground, which allows the machine to be chocked in its working position.
  • each bogy 39 may have its direction adjustable in relation to its arm 31, about a vertical axis 45 coincident with that of the jack 42. In this way, the bogies 39 remain in a direction parallel to the longitudinal axis 34 of the chassis.
  • FIGS. 24 and 25 a device which allows each bogy to be held in the desired position.
  • the arm 31 is unfolded in the position for movement over the ground.
  • a bolt or locking peg 46 holds the top 47 of the bogy 39 in the required position.
  • the locking system 48 is used to hold the top 47 of the bogy 39 in the same direction (FIG. 25).
  • the bolt or peg 36 is fitted for this purpose in a slotted opening 48 in the top 47 of the bogy 39, and it likewise passes through a slotted opening 49 in a plate 50 attached to the arm 31.
  • the stabilizing arms 16 are brought towards the rear (arrows 26, FIG. 26), their shoes 18 are lowered in order to raise the arms 31, then the bogies 39 are turned on their pivots 42, since they are no longer in contact with the ground. Each of these is fixed parallel to its arm 31.
  • FIGS. 28, 29 and 30 A supplementary possibility may be added to the version on tires which has just been described (FIGS. 28, 29 and 30).
  • a crane which is self-propelling both on the site and on the road, which makes it totally independent and avoids the use of a tractor, while simplifying the setting to the road or the site position.
  • a propulsion unit 75 This unit comprises, for example, a heat engine followed by a traditional drive of a road vehicle, or else with a hydraulic unit or electric motors.
  • a driving position or seat 76 is fitted to the chassis 37, for example at the front, to allow the machine to be driven on the road.
  • This steering position 76 and the propulsion unit 75 may be detachable, which allows the machine to be dual purpose, that is to say, to be either self-propelling (FIGS. 28, 29 and 30), or drawn as in the case of FIGS. 20 to 27.
  • FIG. 28 there is shown a plan view of the machine in the working position. The same references have been retained to designate the components corresponding to those of FIGS. 20 to 27. It will be noticed in FIG. 28 that the stabilizing arms 16 have been supposed to be telescopic.
  • FIG. 29 shows the self-propelled crane folded in the position for road transport.
  • the telescopic arms 16 are contracted and brought towards the front.
  • locking brackets 51 and 33 ensure the rigidity of the two rear arms 31.
  • FIG. 30 shows in elevation the self-propelled crane folded in the road position.
  • FIG. 32 Another known solution (FIG. 32) consists in using a jack 57, 58, S9 situated within a telescopic tube 60, 61 which has the sole purpose of absorbing the bending stresses and assuring guiding.
  • FIGS. 33 and 34 Such a mechanism 14 is fitted at the end either of the crossbeam 2 or of an arm 31. It comprises a fixed shaft 63 on which is pivoted the bend of an elbowed crank arm 64. At one of its ends, this crank is linked by means of a shaft 65 to the stem of the jack 13, which is in addition linked to a fixed shaft 66 on the arm 31 or the crossbeam 2. At its other end, the elbowed crank 64 is connected by means of a pivot shaft 67 to the center of the straight connecting rod 12 already mentioned.
  • this connecting rod 12 is linked by a shaft 68 to a second connecting rod 69 pivoting on a fixed shaft 70.
  • the lower end of the connecting rod 12 carries a balljoint 71 connecting it with the block 10 of the rear track assembly 10, 11 in question.
  • the four pivots 63, 67, 68, 70 form the angles of a quadrilateral which in the intermediate position shown in FIG. 33 has approximately the shape ofa trapezium with a right angle.
  • the large base of this deformable quadrilateral is constituted by the side 63, 67 while the pivots 70 and 68 define the small side.
  • the side 67, 68 is very little inclined from the vertical, the direction of the connecting rod 12 tending to make its lower end 71 further from the center of the machine than its upper end 68.
  • FIG. 34 In addition there is shown schematically in FIG. 34 an intermediate position and 71c for the connecting rod 12 and the balljoint 71.
  • ajack 13 which works only in compression, so that it may be given dimensions according to the wishes of the manufacturer in varying the two parameters characterizing the operation of the elbowed crank 64, namely the force of thrust 73 and the length of the lever 74 (FIG. 33).
  • a movable chassis for a tower crane comprising platform means having a front end and a rear end for supporting a tower crane, a single steerable running gear means pivotally secured to said front end, crossbeam means secured to the rear end of said platform means, two additional running gear means adjustably secured to each end of said beam means for vertical movement of said additional running gear means relative to said beam means, a pair of support arms pivotally secured to said platform means for pivotal movement to a position wherein the free ends of each of said arms will be disposed in alignment with and on opposite sides of said single running gear means and in alignment with a respective running gear means on each end of said beam means along lines parallel to the front-rear axis of said platform means, and vertically adjustable ground support means secured to the free end of each arm.
  • each running gear means is detachably secured to said platform means or said beam means, and further comprising pedestal means rotatably mounted on said platform means, coupling means detachably secured to said pedestal means for coupling the mobile chassis to a towing vehicle and transport means suitable for road travel detachabiy secured to said pedestal means.
  • each additional running gear means is linked to said beam means by a mechanism comprising a fixed shaft on which is pivoted the angle of an elbowed crank one end of which is linked to ajack which is pivoted on a fixed shaft on said beam means, the other end of the crank beam pivoted to the central part of a straight connecting arm, the lower end of which has a ball joint connecting said arm through a block of the running gear means, the upper end of said connecting arm beam pivoted to a second connecting arm which is pivoted on a fixed shaft on said beam means, the four pivots of the connecting arms and crank forming the angles of a quadrilateral figure which, in an intermediate position has approximately the shape of a trapezium containing a right angle so that when it is deform ed, the ball joint in practice moves along a vertical axis, thus keeping constant the distance between the axes of the two running gear assemblies.
  • each of the said three running gears comprises an endless track assembly at least one such assembly being adapted to be driven by a mo- 10!.

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  • Mechanical Engineering (AREA)
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US858691A 1968-09-19 1969-09-17 Mobile chassis for carrying a tower crane Expired - Lifetime US3638805A (en)

Applications Claiming Priority (1)

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FR69050404 1968-09-19

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US (1) US3638805A (de)
DE (1) DE1944214C3 (de)
FR (1) FR1594609A (de)
GB (1) GB1285062A (de)

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US20170183203A1 (en) * 2015-12-23 2017-06-29 Manitowoc Crane Group France Automatic unfolding and folding tower crane comprising a mast and a jib shifted with respect to the mast
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US20220194756A1 (en) * 2020-12-18 2022-06-23 Tadano Faun Gmbh Set-up method for a mobile crane and mobile crane

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DE3105149C2 (de) * 1981-01-16 1983-03-24 Liebherr-Hydraulikbagger Gmbh, 7951 Kirchdorf Abstützvorrichtung für Bagger, Kräne o.dgl.
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US4053060A (en) * 1976-02-13 1977-10-11 Wilson Virgil D Crane
US4273244A (en) * 1979-01-29 1981-06-16 Fmc Corporation Crane upperstructure self-transferring system
FR2453817A1 (fr) * 1979-04-09 1980-11-07 Harnischfeger Corp Machine convertible a fleche, notamment grue, a infrastructure modulaire
US4394913A (en) * 1980-11-07 1983-07-26 Harnischfeger Corporation Crane having power operated outriggers and lock means therefor
US4555031A (en) * 1982-10-12 1985-11-26 Fried. Krupp Gesellschaft Mit Beschrankter Haftung Vehicular crane of high carrying capacity having an extensible arm
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GB2176756A (en) * 1984-06-25 1987-01-07 Rotec Industries Vehicle-mounted extensible conveyor
US4640421A (en) * 1985-02-26 1987-02-03 Mason Daniel P Truck crane conversion to crawler crane
US5074370A (en) * 1988-04-25 1991-12-24 Fried. Krupp Gesellschaft Mit Beschrankter Haftung Dual-track chassis
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DE102004063367A1 (de) * 2004-12-30 2006-07-13 Backers Maschinenbau Gmbh Arbeitsmaschine, insbesondere Siebmaschine
US20070045212A1 (en) * 2005-08-31 2007-03-01 Terex-Demag Gmbh & Co. Kg Transport-optimized crane undercarriage
EP1780166A3 (de) * 2005-10-26 2008-10-15 Vincenzo Zangari Unfallschutz für Baukräne
EP1780166A2 (de) * 2005-10-26 2007-05-02 Vincenzo Zangari Unfallschutz für Baukräne
US20090104015A1 (en) * 2007-10-22 2009-04-23 Denis Tardif Method for handling a gas turbine engine during packaging
US7775022B2 (en) * 2007-10-22 2010-08-17 Pratt & Whitney Canada Corp. Method for handling a gas turbine engine during packaging
US9284168B2 (en) * 2009-10-01 2016-03-15 Mw Industries, Inc. Guyless service rig with side-mounted, pivotally deployable rear outriggers
US20110079568A1 (en) * 2009-10-01 2011-04-07 Robert Eugene Mau Guyless service rig with side-mounted, pivotally deployable rear outriggers
WO2013143264A1 (zh) * 2012-03-29 2013-10-03 中联重科股份有限公司 工程机械及其支腿定位支撑装置
US9821985B2 (en) * 2013-12-20 2017-11-21 Liebherr-Werk Ehingen Gmbh Crane having a modular undercarriage
EP2886505A1 (de) * 2013-12-20 2015-06-24 Liebherr-Werk Ehingen GmbH Kran
US20150183622A1 (en) * 2013-12-20 2015-07-02 Liebherr-Werk Ehingen Gmbh Crane
CN106163968A (zh) * 2014-02-19 2016-11-23 特雷克斯知识产权管理有限公司 港口起重机
CN106163968B (zh) * 2014-02-19 2017-12-08 特雷克斯有限公司 港口起重机
DE102014102121A1 (de) * 2014-02-19 2015-08-20 Terex Mhps Gmbh Hafenkran
WO2015124638A1 (de) * 2014-02-19 2015-08-27 Terex Mhps Gmbh Hafenkran
RU2654263C2 (ru) * 2014-02-19 2018-05-17 Терекс МХПС ИП Менеджмент ГмбХ Портальный кран
US20170183203A1 (en) * 2015-12-23 2017-06-29 Manitowoc Crane Group France Automatic unfolding and folding tower crane comprising a mast and a jib shifted with respect to the mast
US10577228B2 (en) * 2015-12-23 2020-03-03 Manitowoc Crane Group France Automatic unfolding and folding tower crane comprising a mast and a jib shifted with respect to the mast
US20220194756A1 (en) * 2020-12-18 2022-06-23 Tadano Faun Gmbh Set-up method for a mobile crane and mobile crane
US11724921B2 (en) * 2020-12-18 2023-08-15 Tadano Faun Gmbh Set-up method for a mobile crane and mobile crane
US20220194753A1 (en) * 2020-12-21 2022-06-23 National Oilwell Varco, L.P. Mobile tower crane systems and methods
US11884520B2 (en) * 2020-12-21 2024-01-30 National Oilwell Varco, L.P. Mobile tower crane systems and methods

Also Published As

Publication number Publication date
GB1285062A (en) 1972-08-09
DE1944214C3 (de) 1973-10-31
DE1944214A1 (de) 1970-05-14
FR1594609A (de) 1970-06-08
DE1944214B2 (de) 1973-04-05

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