EP0150344B1 - Crane with telescopic tower - Google Patents

Crane with telescopic tower Download PDF

Info

Publication number
EP0150344B1
EP0150344B1 EP84114818A EP84114818A EP0150344B1 EP 0150344 B1 EP0150344 B1 EP 0150344B1 EP 84114818 A EP84114818 A EP 84114818A EP 84114818 A EP84114818 A EP 84114818A EP 0150344 B1 EP0150344 B1 EP 0150344B1
Authority
EP
European Patent Office
Prior art keywords
region
trolley
tower
section
crane
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
Application number
EP84114818A
Other languages
German (de)
French (fr)
Other versions
EP0150344A3 (en
EP0150344A2 (en
Inventor
Horst Ing. Zerza
Johann Ing. Woisetschläger
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 Werk Bischofshofen GmbH
Original Assignee
Liebherr Werk Bischofshofen 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 Werk Bischofshofen GmbH filed Critical Liebherr Werk Bischofshofen GmbH
Priority to AT84114818T priority Critical patent/ATE42942T1/en
Publication of EP0150344A2 publication Critical patent/EP0150344A2/en
Publication of EP0150344A3 publication Critical patent/EP0150344A3/en
Application granted granted Critical
Publication of EP0150344B1 publication Critical patent/EP0150344B1/en
Expired legal-status Critical Current

Links

Images

Classifications

    • 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
    • B66C13/10—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack for preventing cable slack
    • 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
    • B66C23/26—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 for use on building sites; constructed, e.g. with separable parts, to facilitate rapid assembly or dismantling, for operation at successively higher levels, for transport by road or rail
    • B66C23/34—Self-erecting cranes, i.e. with hoisting gear adapted for crane erection purposes
    • B66C23/342—Self-erecting cranes, i.e. with hoisting gear adapted for crane erection purposes with telescopic elements

Definitions

  • the invention relates to a crane with a telescopic tower attached to an uppercarriage or to the rotating platform of a portal, the inner tower piece of which can be extended at the upper end with an articulated extension from the outer tower piece, which can be pivoted upright during assembly about an articulation pin provided in its lower region is connected to the inner support part of the jib, at the outer end of which an outer support part of the jib is articulated, the support parts being provided with guides for the trolley, with two guy supports articulated in the area of the tower top, via the outer fixed points of which a rear guy cable is connected to a fixed point runs on the superstructure or portal, and with a guy support articulated in the area of the articulated connection of the support parts of the boom, two further guy cables being fastened to the outer end of the central guy support articulated in the area of the tower top, one of which is in the area of the articulated one V Connection of the support parts is attached and the other runs via a fixed point at the outer end of the guy support articulated in the area
  • Telescopic cranes of this and similar type known from documents DE-A-3 322 268, DE-A-2 614 223, DE-A-2 914 265 and DE-A-2 831 286 as well as DE-U-8 009 033 require for this Erecting the outer tower section with the inner tower section retracted and the boom parts of the boom possibly folded, for extending the inner tower section out of the outer tower section and / or for opening and pivoting the boom special hydraulic devices, telescopic pulley blocks and / or assembly winches.
  • the object of the invention is therefore to provide a crane with a telescopic tower of the type mentioned, which can be erected and assembled in a simple manner with the already existing hoisting and trolley winches without additional hydraulic presses, assembly hoists or assembly winches.
  • both winches are arranged in the area of the uppercarriage or the rotating platform, that the trolley rope has at least one rope pulley fastened in the area of the lower end of the outer tower piece, one rope pulley attached in the area of the upper end of the outer tower piece, one in the lower one Area of the inner tower piece mounted rope pulley, in the area of the tower tip of the outer end of the outer support part of the boom and in the area of the articulated connection of the support parts mounted rope pulleys runs to a fixed point on the trolley and that the hoist rope via intermediate rope pulleys, deflection pulleys of the trolley and the role or rollers of the crane hook to its fixed point at the outer end of the outer support member.
  • the crane according to the invention can only be erected using the trolley winch. For this it is first necessary that the trolley is fixed to the folded-down support parts of the jib so that the end of the trolley rope is fixed. Furthermore, before the outer tower piece folded onto the revolving stage is erected, the inner tower piece which has been retracted into it is blocked in the latter.
  • the outer tower piece is pivotally mounted in a support piece of the rotating platform at such a distance above a deflection roller at its lower end that an uprighting torque is generated around the articulated bolt by actuating the trolley winch. As soon as the outer tower section has been erected into its vertical position by the trolley winch, it is firmly bolted to the rotating platform by at least one further bolt connection.
  • the locking of the inner tower section with the outer tower section is released, so that the inner tower section can be extended from the outer tower section by actuating the trolley winch again.
  • the inner tower piece is then locked to the outer tower piece by bolt connections or the like.
  • the guy ropes guided over the guy supports, the rear guy rope of which is connected to the rotating platform are tightened when the outer tower section is extended, the folded-up support parts of the jib are opened and the jib is pivoted into its end position.
  • the trolley can be moved in the direction of the outer end of the jib via the trolley winch, so that only devices have to be provided in order to be able to move the trolley in the opposite direction.
  • This device can consist in that the trolley is connected to the top of the tower via a rope which forms a loop in the area of the tower, in which a weight is suspended.
  • the weight has the effect that a train always acts on the trolley in the direction of the tower, so that it is moved from the trolley winch towards the tower by appropriately lowering the trolley rope.
  • the same effect can also be achieved if the boom in the assembled position is pivoted upwards beyond the horizontal, ie forms an acute angle with the horizontal.
  • the hoisting rope is reeved in a pulley-like manner via rope pulleys mounted on the rear guy rope and on the rotating platform.
  • This configuration makes it possible to tension the rear guy rope over the hoist winch and thereby open and swing out the support parts of the boom.
  • the guy rope is tautly connected to the rotating platform, so that the pulley is relieved or can be dispensed with entirely. Since the boom can be opened and pivoted independently of the extension of the inner tower section, the boom can also be raised when the inner tower section is retracted into the outer tower section or in all intermediate positions.
  • the weight hanging in the rope loop can also be blocked in predetermined positions instead of the trolley.
  • the hoisting rope is guided to the rope pulleys of the trolley via rope pulleys mounted at the upper end of the outer tower piece, at the lower end of the inner tower piece and in the region of the tower tip.
  • the inner telescopic section is telescoped via the hoist rope via the hoist winch, the crane hook being pushed against the trolley as far as it will go, and the extension arm is also opened and swung out when the hoist is extended, the trolley winch not initially needs to be actuated because the rope extension of the trolley travel rope gained by the extension extends it in the area of the jib and thereby enables the jib to be opened and swung out. Any necessary corrections can be made by operating the trolley winch accordingly.
  • the cable pulley attached to the lower end of the inner tower piece is detachable and can be attached as a bottom block of a block and tackle to a cable that runs over deflection pulleys and the other end of which is connected to the rear guy cable.
  • the boom in the retracted position of the inner tower section or in intermediate positions, the boom can be opened and swung out by actuating the hoist winch.
  • the rope pulley can be detached from the rotating platform and provided as a bottom block with a crane hook for ballasting the crane.
  • the outer tower section can be rocked over the trolley winch, and for ballasting, the lower block provided with a crane hook can be raised and lowered over the lifting winch.
  • the telescopic crane shown schematically in FIGS. 1 and 2 has a flat portal 1 with support feet, about the vertical axis 2 of which a rotating platform 3 provided with a conventional rotary drive can be rotated.
  • Lateral stands 4 are attached to the revolving stage, in which an outer tower piece 6 is pivotally mounted about the hinge pin 5. In the erected vertical position of the outer tower section 6, this is connected to the stands 4 or the rotating platform 3 by at least one further bolt connection, not shown.
  • a trolley winch 7 and a hoist winch 8 are arranged on the rotating platform 3.
  • a trolley rope 9 runs over the cable pulley 10 in the lower region of the outer tower section 6, the cable pulley 11 mounted on the rotating platform 3, the cable pulleys 12, 13 mounted on the outer tower section 6 in the manner shown at the lower corner regions, and on the upper corner region of the outer tower section 6 mounted cable pulley 14, the cable pulley 15 mounted in the lower corner region of an inner tower piece 21, the cable pulley 16 mounted at the upper end of the inner tower piece 21, the cable pulley 17 at the outer end of a guy support 22, the cable pulley 18 at the outer end of an outer beam 23 of a boom, the cable pulley 19 located in the area of the articulated connection 25 between the supports 23, 24 of the boom and is fastened to a trolley 20.
  • a rope 25 is attached to the opposite end of the trolley, the other end of which is attached at point 26 in the upper region of the inner tower piece 21.
  • the rope 25 is guided in the inner tower piece 21 in a loop, a weight 28 being suspended in the loop via a rope pulley 27.
  • the inner support part 24 of the boom is articulated in a joint 29.
  • guy supports 31 and 32 are pivotally mounted on the axis 30.
  • a rear guy cable 34 is attached at point 33.
  • the outer ends of the guy supports 31, 32 are connected to each other by the guy rope 35.
  • a guy rope 36 runs from the outer end of the guy support 32 to a fixed point in the area the articulated connection 25 between the support parts 23, 24 and a further guy rope 37 via a fixed point at the outer end of the guy support 22 to a fixed point 38 in the region of the outer end of the outer support part.
  • the lifting rope 39 runs over the rope pulley 40 of an upper block of a pulley block, which is connected to the guy rope 34 in the manner shown, to the rope pulley 41 of the lower block, which is connected to the rotating platform 3, and from there via the rope pulley 42 in the upper region of the inner tower section via the rollers of the trolley 20 and the roller of a crane hook 43 to a fixed point 44 in the region of the outer carrier part 23.
  • trolley travel and hoisting winches 7 and 8 serve to lift the crane hook 43 and to move the cat 20 in the manner shown in FIG. 2.
  • the lower block 41 detached from the platform 3, which can be provided with a crane hook, can be used for ballasting the crane.
  • the upper bottle 40 is located in the upper region of the lower tower section 6.
  • the boom can also be swung out when the inner tower section 21 is retracted or in intermediate positions of the inner tower section. In the intermediate positions, the guy cable 34 is bolted to the turntable 3 with a correspondingly shortened length
  • FIG. 3 differs essentially from the embodiment of FIGS. 1 and 2 only in that the lifting rope 39 via a rope pulley 50 at the upper end of the outer tower piece 6, a rope pulley 51 at the lower end of the inner tower piece 21 and a rope pulley 52 runs at the upper end of the inner tower piece 21 to the rollers 53 of the trolley 20.
  • the boom is opened with the inner tower piece retracted or intermediate positions of the inner tower piece, the rope pulley 51 is detached from the inner tower piece 21 and coupled as a bottom block 51 'of a pulley block to a rope 56 running over the rope pulleys 54, 55, the latter other end at point 57 is connected to the guy rope 34. Then, after the inner tower piece 21 has been partially extended and fixed relative to the outer tower piece 6, the boom can be opened via the lifting rope 39. After the boom has been opened, the rear guy cable 34 is fastened to the rotating platform 3 with a correspondingly shortened length.
  • the outer support part of the jib can be swung up.
  • the inner support part 24 can be swiveled up when the crane hook 43 is moved on the block by actuating the lifting winch 8. By actuating both winches, the pivoting movements of the inner and outer support parts can be superimposed on one another.

Landscapes

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

Abstract

1. Crane with a telescopic tower (6, 21) attached to a revolving superstructure or the superstructure frame (3) of a portal (1), whose inner tower section (21) - which can be extended out of the outer tower section (6), it being possible to pivot the latter around a pintle (5) provided at its lower end for the purpose of erection during assembly - is connected at its upper end with an articulated joint to the inner beam section (24) of the jib, on whose outer end is hinged an outer beam section (23) of the jib, these beam sections (23, 24) being provided with guideways for a trolley (20), with two braces (31, 32) hinged in the region of the tower head, over the outer locating points (33) of which a rear bracing wire (34) runs to a locating point on the revolving superstructure or superstructure frame (3), with a brace (22) hinged in the region of the articulated joint (25) of the beam sections (23, 24) of the jib where at the outer end of the middle brace (32) hinged in the region of the tower head two further bracing wires (36, 37) are connected, one of which (36) is connected in the region of the articulated joint (25) of the beam sections (23, 24), and the other of which (37) runs over a locating point at the outer end of the brace (22) hinged in the region between the beam sections (23, 24) to a locating point (38) at the outer end of the outer beam section (23), and with a trolley travelling winch and a hoisting winch (7, 8), characterised in that both winches (7, 8) are located in the region of the revolving superstructure or superstructure frame (3), the trolley cable (9) runs over at least one sheave (12, 13) mounted in the region of the lower end of the outer tower section (6), one sheave (14) mounted in the region of the upper end of the outer tower section (6), one sheave (15) mounted in the region of the lower end of the inner tower section (21), and over sheaves (16, 18, 19) mounted in the region of the tower head, the outer end of the outer beam section (23) of the jib and in the region of the articulated joint (25) of the beam sections (23, 24) to a locating point of a trolley (20) and the hoisting cable (39) runs over intermediate sheaves (40, 41), deflecting sheaves of the trolley (20) and the roller or rollers of the crane hook (43) to a locating point (44) at the outer end of the outer beam section (23).

Description

Die Erfindung betrifft einen Kran mit einem auf einem Oberwagen oder der Drehbühne eines Portals befestigten, teleskopierbaren Turm, dessen aus dem Außenturmstück, das zum Aufrichten bei der Montage um einen in seinem unteren Bereich vorgesehenen Gelenkbolzen schwenkbar ist, ausfahrbares Innenturmstück an seinem oberen Ende gelenkig mit dem inneren Trägerteil des Auslegers verbunden ist, an dessen äußerem Ende ein äußeres Trägerteil des Auslegers angelenkt ist, wobei die Trägerteile mit Führungen für die Laufkatze versehen sind, mit zwei im Bereich der Turmspitze angelenkten Abspannstützen, über deren äußere Festpunkte ein hinteres Abspannseil zu einem Festpunkt auf dem Oberwagen oder Portal verläuft, und mit einer im Bereich der gelenkigen Verbindung der Trägerteile des Auslegers angelenkten Abspannstütze, wobei an dem äußeren Ende der mittleren, im Bereich der Turmspitze angelenkten Abspannstütze zwei weitere Abspannseile befestigt sind, von denen das eine im Bereich der gelenkigen Verbindung der Trägerteile befestigt ist und das andere über einen Festpunkt an dem äußeren Ende der im Bereich zwischen den Trägerteilen angelenkten Abspannstütze zu einem Festpunkt an dem äußeren Ende des äußeren Trägerteils verläuft, und mit einer Katzfahr- und einer Hubwinde.The invention relates to a crane with a telescopic tower attached to an uppercarriage or to the rotating platform of a portal, the inner tower piece of which can be extended at the upper end with an articulated extension from the outer tower piece, which can be pivoted upright during assembly about an articulation pin provided in its lower region is connected to the inner support part of the jib, at the outer end of which an outer support part of the jib is articulated, the support parts being provided with guides for the trolley, with two guy supports articulated in the area of the tower top, via the outer fixed points of which a rear guy cable is connected to a fixed point runs on the superstructure or portal, and with a guy support articulated in the area of the articulated connection of the support parts of the boom, two further guy cables being fastened to the outer end of the central guy support articulated in the area of the tower top, one of which is in the area of the articulated one V Connection of the support parts is attached and the other runs via a fixed point at the outer end of the guy support articulated in the area between the support parts to a fixed point at the outer end of the outer support part, and with a trolley winch and a hoist winch.

Aus den Druckschriften DE-A-3 322 268, DE-A-2 614 223, DE-A-2 914 265 und DE-A-2 831 286 sowie DE-U-8 009 033 bekannte Teleskopkräne dieser und ähnlicher Art benötigen zum Aufrichten des Außenturmstücks mit eingefahrenen Innenturmstück und gegebenenfalls angeklappten Trägerteilen des Auslegers, zum Ausfahren des inneren Turmstücks aus dem äußeren Turmstück und/oder zum Aufklappen und Einschwenken des Auslegers besondere hydraulische Einrichtungen, Teleskopierflaschenzüge und/oder Montagewinden.Telescopic cranes of this and similar type known from documents DE-A-3 322 268, DE-A-2 614 223, DE-A-2 914 265 and DE-A-2 831 286 as well as DE-U-8 009 033 require for this Erecting the outer tower section with the inner tower section retracted and the boom parts of the boom possibly folded, for extending the inner tower section out of the outer tower section and / or for opening and pivoting the boom special hydraulic devices, telescopic pulley blocks and / or assembly winches.

Aufgabe der Erfindung ist es daher, einen Kran mit teleskopierbarem Turm der eingangs angegebenen Art zu schaffen, der sich ohne zusätzliche hydraulische Pressen, Montageflaschenzüge oder Montagewinden nur mit den bereits vorhandenen Hub- und Katzfahrwinden in einfacher Weise aufrichten und montieren läßt.The object of the invention is therefore to provide a crane with a telescopic tower of the type mentioned, which can be erected and assembled in a simple manner with the already existing hoisting and trolley winches without additional hydraulic presses, assembly hoists or assembly winches.

Erfindungsgemäß wird diese Aufgabe dadurch gelöst, daß beide Winden im Bereich des Oberwagens oder der Drehbühne angeordnet sind, daß das Katzfahrseil über mindestens eine im Bereich des unteren Endes des Außenturmstücks befestigte Seilrolle, eine im Bereich des oberen Endes des Außenturmstücks befestigte Seilrolle, eine im unteren Bereich des Innenturmstücks gelagerte Seilrolle, im Bereich der Turmspitze des äußeren Endes des äußeren Trägerteils des Auslegers und im Bereich der gelenkigen Verbindung der Trägerteile gelagerte Seilrollen zu einem Festpunkt an der Laufkatze verläuft und daß das Hubseil über Zwischenseilrollen, Umlenkrollen der Laufkatze und die Rolle oder Rollen des Kranhakens zu seinem Festpunkt am äußeren Ende des äußeren Trägerteils verläuft.According to the invention, this object is achieved in that both winches are arranged in the area of the uppercarriage or the rotating platform, that the trolley rope has at least one rope pulley fastened in the area of the lower end of the outer tower piece, one rope pulley attached in the area of the upper end of the outer tower piece, one in the lower one Area of the inner tower piece mounted rope pulley, in the area of the tower tip of the outer end of the outer support part of the boom and in the area of the articulated connection of the support parts mounted rope pulleys runs to a fixed point on the trolley and that the hoist rope via intermediate rope pulleys, deflection pulleys of the trolley and the role or rollers of the crane hook to its fixed point at the outer end of the outer support member.

Der erfindungsgemäße Kran läßt sich nur über die Katzfahrwinde aufrichten. Hierzu ist es zunächst erforderlich, daß die Laufkatze an den angeklappten Trägerteilen des Auslegers fixiert ist, so daß das Ende des Katzfahrseils festgelegt ist. Weiterhin ist vor dem Aufrichten des auf die Drehbühne geklappten Außenturmstücks das in diesen eingefahrene Innenturmstück in diesem blockiert. Das Außenturmstück ist in einem Trägerstück der Drehbühne in einem solchen Abstand oberhalb einer Umlenkrolle an seinem unteren Ende schwenkbar gelagert, daß um den lagernden Gelenkbolzen durch Betätigung der Katzfahrwinde ein aufrichtendes Drehmoment erzeugt wird. Sobald das Außenturmstück durch die Katzfahrwinde in seine vertikale Stellung aufgerichtet worden ist, wird es durch mindestens eine weitere Bolzenverbindung fest mit der Drehbühne verbolzt. Anschließend wird die Verriegelung des Innenturmstücks mit dem Außenturmstück aufgehoben, so daß durch erneute Betätigung der Katzfahrwinde das Innenturmstück aus dem Außenturmstück ausgefahren werden kann. In der ausgefahrenen Stellung wird sodann durch Bolzenverbindungen oder dergleichen das Innenturmstück mit dem Außenturmstück verriegelt. Sobald beim Ausfahren des Außenturmstücks die über die Abspannstützen geführten Abspannseile, deren hinteres Abspannseil mit der Drehbühne verbunden ist, gestrafft werden, werden die angeklappten Trägerteile des Auslegers aufgeklappt und der Ausleger in seine Endstellung verschwenkt. Wird sodann die Verriegelung der Laufkatze mit dem entsprechenden Trägerteil aufgehoben, läßt sich über die Katzfahrwinde die Laufkatze in Richtung auf das äußere Auslegerende verfahren, so daß nur noch Einrichtungen vorgesehen werden müssen, um die Laufkatze auch in entgegengesetzter Richtung verfahren zu können. Diese Einrichtung kann darin bestehen, daß die Laufkatze über ein Seil, das im Bereich des Turms eine Schlaufe bildet, in die ein Gewicht eingehängt ist, mit der Turmspitze verbunden ist. Das Gewicht bewirkt, daß auf die Laufkatze immer ein Zug in Richtung auf dem Turm wirkt, so daß sie durch entsprechendes Ablassen des Katzfahrseils von der Katzfahrwinde in Richtung auf den Turm verfahren wird. Die gleiche Wirkung kann auch erzielt werden, wenn der Ausleger in der montierten Stellung nach oben hin über die Horizontale hinaus geschwenkt ist, also mit der Horizontalen einen spitzen Winkel bildet.The crane according to the invention can only be erected using the trolley winch. For this it is first necessary that the trolley is fixed to the folded-down support parts of the jib so that the end of the trolley rope is fixed. Furthermore, before the outer tower piece folded onto the revolving stage is erected, the inner tower piece which has been retracted into it is blocked in the latter. The outer tower piece is pivotally mounted in a support piece of the rotating platform at such a distance above a deflection roller at its lower end that an uprighting torque is generated around the articulated bolt by actuating the trolley winch. As soon as the outer tower section has been erected into its vertical position by the trolley winch, it is firmly bolted to the rotating platform by at least one further bolt connection. Subsequently, the locking of the inner tower section with the outer tower section is released, so that the inner tower section can be extended from the outer tower section by actuating the trolley winch again. In the extended position, the inner tower piece is then locked to the outer tower piece by bolt connections or the like. As soon as the guy ropes guided over the guy supports, the rear guy rope of which is connected to the rotating platform, are tightened when the outer tower section is extended, the folded-up support parts of the jib are opened and the jib is pivoted into its end position. If the locking of the trolley with the corresponding carrier part is then released, the trolley can be moved in the direction of the outer end of the jib via the trolley winch, so that only devices have to be provided in order to be able to move the trolley in the opposite direction. This device can consist in that the trolley is connected to the top of the tower via a rope which forms a loop in the area of the tower, in which a weight is suspended. The weight has the effect that a train always acts on the trolley in the direction of the tower, so that it is moved from the trolley winch towards the tower by appropriately lowering the trolley rope. The same effect can also be achieved if the boom in the assembled position is pivoted upwards beyond the horizontal, ie forms an acute angle with the horizontal.

Es ist auch denkbar, den Kran in der beschriebenen Weise über das Hubseil und die Hubwinde aufzurichten, wobei sodann das Hubseil entsprechend einzuscheren ist.It is also conceivable to erect the crane in the manner described above via the hoisting rope and the hoisting winch, the hoisting rope then having to be reeved accordingly.

Nach einer Ausgestaltung ist vorgesehen, daß das Hubseil über an dem hinteren Abspannseil und an der Drehbühne gelagerte Seilrollen flaschenzugartig eingeschert ist. Diese Ausgestaltung ermöglicht es, das hintere Abspannseil über die Hubwinde zu spannen und dadurch die Trägerteile des Auslegers aufzuklappen und auszuschwenken. Nach dem Ausschwenken des Auslegers in die montierte Stellung wird das Abspannseil straff mit der Drehbühne verbunden, so daß der Flaschenzug entlastet wird oder auf diesen ganz verzichtet werden kann. Da das Aufklappen und Ausschwenken des Auslegers unabhängig von dem Ausfahren des Innenturmstücks erfolgen kann, kann der Ausleger auch bei in das Außenturmstück eingefahrenem Innenturmstück oder aber auch in allen Zwischenstellungen ausgestellt werden.According to one embodiment, it is provided that the hoisting rope is reeved in a pulley-like manner via rope pulleys mounted on the rear guy rope and on the rotating platform. This configuration makes it possible to tension the rear guy rope over the hoist winch and thereby open and swing out the support parts of the boom. After swinging the boom into the assembled position, the guy rope is tautly connected to the rotating platform, so that the pulley is relieved or can be dispensed with entirely. Since the boom can be opened and pivoted independently of the extension of the inner tower section, the boom can also be raised when the inner tower section is retracted into the outer tower section or in all intermediate positions.

Zum Ausfahren des Innenturmstücks und gegebenenfalls gleichzeitigem Aufklappen des Auslegers kann statt der Laufkatze auch das in der Seilschlaufe hängende Gewicht in vorbestimmten Stellungen blockiert werden.To extend the inner tower section and, if necessary, simultaneously open the jib, the weight hanging in the rope loop can also be blocked in predetermined positions instead of the trolley.

Nach einer weiteren Ausgestaltung ist das Hubseil über am oberen Ende des Außenturmstücks, am unteren Ende des Innenturmstücks und im Bereich der Turmspitze gelagerte Seilrollen zu den Seilrollen der Laufkatze geführt. Nach dieser Ausgestaltung erfolgt nach der beschriebenen Aufrichtung des unteren Außenturmstücks das Außenteleskopieren des Innenturmstücks über das Hubseil über die Hubwinde, wobei der Kranhaken auf Anschlag gegen die Laufkatze gefahren ist und wobei beim Ausfahren gleichzeitig auch der Ausleger aufgeklappt und ausgeschwenkt wird, wobei die Katzfahrwinde zunächst nicht betätigt zu werden braucht, weil die durch das Ausfahren gewonnene Seilverlängerung des Katzfahrseils dieses im Bereich des Auslegers verlängert und dadurch das Aufklappen und Ausschwenken des Auslegers ermöglicht. Erforderliche Korrekturen können durch entsprechende Betätigung der Katzfahrwinde vorgenommen werden.According to a further embodiment, the hoisting rope is guided to the rope pulleys of the trolley via rope pulleys mounted at the upper end of the outer tower piece, at the lower end of the inner tower piece and in the region of the tower tip. According to this embodiment, after the described erection of the lower outer tower section, the inner telescopic section is telescoped via the hoist rope via the hoist winch, the crane hook being pushed against the trolley as far as it will go, and the extension arm is also opened and swung out when the hoist is extended, the trolley winch not initially needs to be actuated because the rope extension of the trolley travel rope gained by the extension extends it in the area of the jib and thereby enables the jib to be opened and swung out. Any necessary corrections can be made by operating the trolley winch accordingly.

Nach einer weiteren Ausgestaltung ist vorgesehen, daß die an dem unteren Ende des Innenturmstücks befestigte Seilrolle lösbar und als Unterflasche eines Flaschenzugs an ein Seil befestigbar ist, das über Umlenkrollen läuft und dessen anderes Ende mit dem hinteren Abspannseil verbunden ist. Nach dieser Ausgestaltung kann in der eingefahrenen Stellung des inneren Turmstücks oder in Zwischenstellungen der Ausleger durch Betätigung der Hubwinde aufgeklappt und ausgeschwenkt werden.According to a further embodiment it is provided that the cable pulley attached to the lower end of the inner tower piece is detachable and can be attached as a bottom block of a block and tackle to a cable that runs over deflection pulleys and the other end of which is connected to the rear guy cable. According to this embodiment, in the retracted position of the inner tower section or in intermediate positions, the boom can be opened and swung out by actuating the hoist winch.

Beim Aufrichten des äußeren Turmstücks kann in weiterer Ausgestaltung der Erfindung nach der ersten Ausführungsform die Seilrolle von der Drehbühne gelöst und als Unterflasche mit einem Kranhaken zur Ballastierung des Krans versehen sein. Zur Ballastierung läßt sich das äußere Turmstück über die Katzfahrwinde wippen, und zur Ballastierung läßt sich die mit einem Kranhaken versehene Unterflasche über die Hubwinde heben und senken.When the outer tower section is erected, in a further embodiment of the invention, according to the first embodiment, the rope pulley can be detached from the rotating platform and provided as a bottom block with a crane hook for ballasting the crane. For ballasting, the outer tower section can be rocked over the trolley winch, and for ballasting, the lower block provided with a crane hook can be raised and lowered over the lifting winch.

Ausführungsbeispiele der Erfindung werden nachstehend anhand der Zeichnung näher erläutert. In dieser zeigt

  • Fig. 1 eine Seitenansicht der ersten Ausführungsform des Teleskopkrans während des Aufrichtens in schematischer Darstellung,
  • Fig. 2 den Teleskopkran nach Fig. 1 in seiner montierten Stellung und
  • Fig. 3 eine der Fig. 1 entsprechende Darstellung einer zweiten Ausführungsform eines Teleskopkrans.
Embodiments of the invention are explained in more detail below with reference to the drawing. In this shows
  • 1 is a side view of the first embodiment of the telescopic crane during erection in a schematic representation,
  • Fig. 2 shows the telescopic crane according to Fig. 1 in its assembled position
  • Fig. 3 is a representation corresponding to FIG. 1 of a second embodiment of a telescopic crane.

Der in den Fig. 1 und 2 schematisch dargestellte Teleskopkran weist ein flaches Portal 1 mit Stützfüßen auf, um dessen vertikale Achse 2 eine mit einem üblichen Drehantrieb versehene Drehbühne 3 drehbar ist. Auf der Drehbühne sind seitliche Ständer 4 befestigt, in denen um den Gelenkbolzen 5 ein Außenturmstück 6 schwenkbar gelagert ist. In der aufgerichteten vertikalen Stellung des Außenturmstücks 6 wird dieses durch mindestens eine weitere, nicht dargestellte Bolzenverbindung mit den Ständern 4 oder der Drehbühne 3 verbunden.The telescopic crane shown schematically in FIGS. 1 and 2 has a flat portal 1 with support feet, about the vertical axis 2 of which a rotating platform 3 provided with a conventional rotary drive can be rotated. Lateral stands 4 are attached to the revolving stage, in which an outer tower piece 6 is pivotally mounted about the hinge pin 5. In the erected vertical position of the outer tower section 6, this is connected to the stands 4 or the rotating platform 3 by at least one further bolt connection, not shown.

Auf der Drehbühne 3 sind eine Katzfahrwinde 7 und eine Hubwinde 8 angeordnet. Ein Katzfahrseil 9 läuft über die Seilrolle 10 im unteren Bereich des Außenturmstücks 6, die auf der Drehbühne 3 gelagerte Seilrolle 11, die an den unteren Eckbereichen in der dargestellten Weise an dem Außenturmstück 6 gelagerten Seilrollen 12, 13, die an dem oberen Eckbereich des Außenturmstücks 6 gelagerte Seilrolle 14, die im unteren Eckbereich eines Innenturmstücks 21 gelagerte Seilrolle 15, die am oberen Ende des Innenturmstücks 21 gelagerte Seilrolle 16, die Seilrolle 17 am äußeren Ende einer Abspannstütze 22, die Seilrolle 18 am äußeren Ende eines äußeren Trägers 23 eines Auslegers, die im Bereich der gelenkigen Verbindung 25 zwischen den Trägern 23, 24 des Auslegers befindliche Seilrolle 19 und ist an einer Laufkatze 20 befestigt. An dem gegenüberliegenden Ende der Laufkatze ist ein Seil 25 befestigt, dessen anderes Ende im Punkt 26 im oberen Bereich des Innenturmstücks 21 befestigt ist. Das Seil 25 ist in dem Innenturmstück 21 in einer Schlaufe geführt, wobei in die Schlaufe über eine Seilrolle 27 ein Gewicht 28 eingehängt ist.A trolley winch 7 and a hoist winch 8 are arranged on the rotating platform 3. A trolley rope 9 runs over the cable pulley 10 in the lower region of the outer tower section 6, the cable pulley 11 mounted on the rotating platform 3, the cable pulleys 12, 13 mounted on the outer tower section 6 in the manner shown at the lower corner regions, and on the upper corner region of the outer tower section 6 mounted cable pulley 14, the cable pulley 15 mounted in the lower corner region of an inner tower piece 21, the cable pulley 16 mounted at the upper end of the inner tower piece 21, the cable pulley 17 at the outer end of a guy support 22, the cable pulley 18 at the outer end of an outer beam 23 of a boom, the cable pulley 19 located in the area of the articulated connection 25 between the supports 23, 24 of the boom and is fastened to a trolley 20. A rope 25 is attached to the opposite end of the trolley, the other end of which is attached at point 26 in the upper region of the inner tower piece 21. The rope 25 is guided in the inner tower piece 21 in a loop, a weight 28 being suspended in the loop via a rope pulley 27.

An das obere Ende des Innenturmstücks 21 ist in einem Gelenk 29 das innere Trägerteil 24 des Auslegers angelenkt. Am inneren Ende des Trägerteils 24 sind auf der Achse 30 Abspannstützen 31 und 32 schwenkbar gelagert. An dem äußeren Ende der nach hinten weisenden Abspannstütze 31 ist im Punkt 33 ein hinteres Abspannseil 34 befestigt. Die äußeren Enden der Abspannstützen 31, 32 sind durch das Abspannseil 35 miteinander verbunden. Von dem äußeren Ende der Abspannstütze 32 verläuft ein Abspannseil 36 zu einem Festpunkt im Bereich der gelenkigen Verbindung 25 zwischen den Trägerteilen 23, 24 und ein weiteres Abspannseil 37 über einen Festpunkt am äußeren Ende der Abspannstütze 22 zu einem Festpunkt 38 im Bereich des äußeren Endes des äußeren Trägerteils.At the upper end of the inner tower piece 21, the inner support part 24 of the boom is articulated in a joint 29. At the inner end of the carrier part 24, guy supports 31 and 32 are pivotally mounted on the axis 30. At the outer end of the rear-facing guy support 31, a rear guy cable 34 is attached at point 33. The outer ends of the guy supports 31, 32 are connected to each other by the guy rope 35. A guy rope 36 runs from the outer end of the guy support 32 to a fixed point in the area the articulated connection 25 between the support parts 23, 24 and a further guy rope 37 via a fixed point at the outer end of the guy support 22 to a fixed point 38 in the region of the outer end of the outer support part.

Das Hubseil 39 verläuft über die Seilrolle 40 einer Oberflasche eines Flaschenzuges, die in der dargestellten Weise mit dem Abspannseil 34 verbunden ist, zu der Seilrolle 41 der Unterflasche, die mit der Drehbühne 3 verbunden ist, und von dieser über die Seilrolle 42 im oberen Bereich des Innenturmstücks über die Rollen der Laufkatze 20 und die Rolle eines Kranhakens 43 zu einem Festpunkt 44 im Bereich des äußeren Trägerteils 23.The lifting rope 39 runs over the rope pulley 40 of an upper block of a pulley block, which is connected to the guy rope 34 in the manner shown, to the rope pulley 41 of the lower block, which is connected to the rotating platform 3, and from there via the rope pulley 42 in the upper region of the inner tower section via the rollers of the trolley 20 and the roller of a crane hook 43 to a fixed point 44 in the region of the outer carrier part 23.

Nachdem der Kran in der aus Fig. 2 ersichtlichen Weise vollständig aufgerichtet worden ist, wird das untere Ende des hinteren Abspannseils 34 in der Öse 45 an der Drehbühne 3 befestigt.After the crane has been fully erected in the manner shown in FIG. 2, the lower end of the rear guy cable 34 is fastened in the eyelet 45 to the rotating platform 3.

Das Aufrichten des Krans geschieht in folgender Weise:

  • Zunächst liegt das Außenturmstück 6 mit eingeschobenem Innenturmstück 21 und angeklappten Trägerteilen 23, 24 des Auslegers in etwa horizontaler Stellung auf der Drehbühne 3. Das Katzfahrseil 9 ist durch Verriegelung des Gewichts 28 durch die Verriegelungseinrichtung 46 mit dem Innenturmstück 21 verriegelt. Durch Betätigung der Katzfahrwinde 7 wird sodann das Außenturmstück 6 in die dargestellte vertikale Stellung um den Bolzen 5 verschwenkt und in dieser Stellung verriegelt. Beim Aufrichten wird der Hebelarm zwischen dem Gelenkbolzen 5 und den Seilrollen 12 und/oder 13 wirksam.
The crane is erected in the following way:
  • First of all, the outer tower section 6 with the inserted inner tower section 21 and the folded-down support parts 23, 24 of the boom lies in an approximately horizontal position on the rotating platform 3. The trolley rope 9 is locked to the inner tower section 21 by locking the weight 28 by the locking device 46. By actuating the trolley winch 7, the outer tower piece 6 is then pivoted into the vertical position shown about the bolt 5 and locked in this position. When erecting the lever arm between the hinge pin 5 and the pulleys 12 and / or 13 is effective.

Nach dem Aufrichten des Außenturmstücks 6 wird eine nicht dargestellte Verriegelug zwischen dem Innenturmstück 21 und dem Außenturmstück 6 gelöst. Durch weitere Betätigung der Katzfahrwinde 7 wird nun das Innenturmstück 21 austeleskopiert und in der ausgefahrenen Stellung durch die Riegeleinrichtung 47 mit dem Außenturmstück 6 verriegelt. Beim oder nach dem Ausfahren des Innenturmstücks 21 wird durch Einfahren des Hubseils 39 bei auf Anschlag in der Laufkatze 20 gefahrenem Kranhaken 43 das hintere Abspannseil 34 gespannt und dadurch der Ausleger aufgeklappt und ausgeschwenkt. In der ausgeschwenkten Stellung wird sodann das untere Ende des hinteren Abspannseils 34 mit der Drehbühne 3 verriegelt.After erecting the outer tower section 6, a lock, not shown, between the inner tower section 21 and the outer tower section 6 is released. By further actuation of the trolley winch 7, the inner tower piece 21 is now telescoped and locked in the extended position by the locking device 47 with the outer tower piece 6. When or after the extension of the inner tower piece 21, the rear guy cable 34 is tensioned by retracting the lifting cable 39 while the crane hook 43 is moving in the trolley 20 and thereby the boom is opened and swung out. In the pivoted-out position, the lower end of the rear guy cable 34 is then locked with the rotating platform 3.

Nach der Montage dienen Katzfahr- und Hubwinde 7 und 8 in der aus Fig. 2 ersichtlichen Weise dem Heben des Kranhakens 43 und dem Verfahren der Katze 20.After assembly, trolley travel and hoisting winches 7 and 8 serve to lift the crane hook 43 and to move the cat 20 in the manner shown in FIG. 2.

Werden bei der Montage die Trägerteile 23, 24 des Auslegers durch Straffen des hinteren Abspannseils 34 über das Hubseil 39 aufgeklappt, muß über die Katzfahrwinde 37 so viel Seil nachgelassen werden, daß das Aufspannen ermöglicht wird.If the support parts 23, 24 of the boom are opened by tightening the rear guy rope 34 over the hoisting rope 39 during assembly, so much rope has to be released via the trolley winch 37 that the tensioning is made possible.

Während des Aufrichtens des Außenturmstücks 6 kann die von der Plattform 3 gelöste Unterflasche 41, die mit einem Kranhaken versehen sein kann, zum Ballastieren des Krans benutzt werden. In der Ballastierstellung befindet sich die Oberflasche 40 im oberen Bereich des unteren Turmstücks 6.During the erection of the outer tower piece 6, the lower block 41 detached from the platform 3, which can be provided with a crane hook, can be used for ballasting the crane. In the ballasting position, the upper bottle 40 is located in the upper region of the lower tower section 6.

Der Ausleger kann auch bei eingefahrenem inneren Turmstück 21 oder in Zwischenstellungen des inneren Turmstücks ausgeschwenkt werden. In den Zwischenstellungen wird das Abspannseil 34 mit entsprechend verkürzter Länge an der Drehbühne 3 verbolztThe boom can also be swung out when the inner tower section 21 is retracted or in intermediate positions of the inner tower section. In the intermediate positions, the guy cable 34 is bolted to the turntable 3 with a correspondingly shortened length

Das Ausführungsbeispiel nach Fig. 3 unterscheidet sich im wesentlichen von dem Ausführungsbeispiel nach den Fig. 1 und 2 nur dadurch, daß das Hubseil 39 über eine Seilrolle 50 am oberen Ende des Außenturmstücks 6, eine Seilrolle 51 am unteren Ende des Innenturmstücks 21 und eine Seilrolle 52 am oberen Ende des Innenturmstücks 21 zu den Rollen 53 der Laufkatze 20 läuft. Infolge dieser geänderten Führung des Hubseils ergibt sich folgende geänderte Art der Aufstellung des Krans: Nach dem Aufrichten des Außenturmstücks 6 mit der Katzfahrwinde 7 als Wippwinde und Verriegeln mit der Drehbühne 3 wird das Innenturmstück 21 bei auf Block gefahrenem Kranhaken 43 durch die Hubwinde 8 und das Hubseil 9 austeleskopiert, wobei das hintere Abspannseil 34 gestrafft und dadurch die Trägerteile 23, 24 des Auslegers aufgeklappt werden. Bei dem Austeleskopieren des Innenturmstücks 21 wird durch Annäherung der Seilrollen 14, 15 Seillänge gewonnen, die ein Aufklappen des Auslegers ermöglicht.The embodiment of FIG. 3 differs essentially from the embodiment of FIGS. 1 and 2 only in that the lifting rope 39 via a rope pulley 50 at the upper end of the outer tower piece 6, a rope pulley 51 at the lower end of the inner tower piece 21 and a rope pulley 52 runs at the upper end of the inner tower piece 21 to the rollers 53 of the trolley 20. As a result of this changed guidance of the hoisting rope, the following changed type of erection of the crane results: After erecting the outer tower section 6 with the trolley winch 7 as a luffing winch and locking it with the rotating platform 3, the inner tower section 21 is lifted by the hoisting winch 8 and that when the crane hook 43 is moved on a block Lifting rope 9 telescoped, the rear guy rope 34 tightened and thereby the support parts 23, 24 of the boom are opened. When the inner tower piece 21 is telescoped out, the rope length 14 is obtained by approximating the rope pulleys 14, which enables the boom to be opened.

Soll bei der Ausführungsform nach Fig. 3 der Ausleger bei eingefahrenem Innenturmstück oder Zwischenstellungen des Innenturmstücks aufgeklappt werden, wird die Seilrolle 51 von dem Innenturmstück 21 gelöst und als Unterflasche 51' eines Flaschenzugs an ein über die Seilrollen 54, 55 laufendes Seil 56 angekuppelt, dessen anderes Ende im Punkt 57 mit dem Abspannseil 34 verbunden ist. Über das Hubseil 39 läßt sich sodann, nachdem gegebenenfalls das Innenturmstück 21 teilweise ausgefahren und relativ zu dem Außenturmstück 6 fixiert ist, der Ausleger aufklappen. Nach dem Aufklappen des Auslegers wird das hintere Abspannseil 34 mit entsprechend verkürzter Länge an der Drehbühne 3 befestigt.If, in the embodiment according to FIG. 3, the boom is opened with the inner tower piece retracted or intermediate positions of the inner tower piece, the rope pulley 51 is detached from the inner tower piece 21 and coupled as a bottom block 51 'of a pulley block to a rope 56 running over the rope pulleys 54, 55, the latter other end at point 57 is connected to the guy rope 34. Then, after the inner tower piece 21 has been partially extended and fixed relative to the outer tower piece 6, the boom can be opened via the lifting rope 39. After the boom has been opened, the rear guy cable 34 is fastened to the rotating platform 3 with a correspondingly shortened length.

Bei der Ausführungsform nach den Fig. 1 und 2 läßt sich nach Fixieren der Laufkatze oder des Gewichts mit der Katzfahrwinde das äußere Trägerteil des Auslegers hochschwenken. Der innere Trägerteil 24 läßt sich bei auf Block gefahrenem Kranhaken 43 durch Betätigung der Hubwinde 8 hochschwenken. Durch Betätigung beider Winden können die Schwenkbewegungen der inneren und äußeren Trägerteile einander überlagert werben.In the embodiment according to FIGS. 1 and 2, after fixing the trolley or the weight with the trolley winch, the outer support part of the jib can be swung up. The inner support part 24 can be swiveled up when the crane hook 43 is moved on the block by actuating the lifting winch 8. By actuating both winches, the pivoting movements of the inner and outer support parts can be superimposed on one another.

Claims (7)

1. Crane with a telescopic tower (6, 21) attached to a revolving superstructure or the superstructure frame (3) of a portal (1), whose inner tower section (21) - which can be extended out of the outer tower section (6), it being possible to pivot the latter around a pintle (5) provided at its lower end for the purpose of erection during assembly - is connected at its upper end with an articulated joint to the inner beam section (24) of the jib, on whose outer end is hinged an outer beam section (23) of the jib, these beam sections (23, 24) being provided with guideways for a trolley (20),
with two braces (31, 32) hinged in the region of the tower head, over the outer locating points (33) of which a rear bracing wire (34) runs to a locating point on the revolving superstructure or superstructure frame (3),
with a brace (22) hinged in the region of the articulated joint (25) of the beam sections (23, 24) of the jib where at the outer end of the middle brace (32) hinged in the region of the tower head two further bracing wires (36, 37) are connected, one of which (36) is connected in the region of the articulated joint (25) of the beam sections (23, 24), and the other of which (37) runs over a locating point at the outer end of the brace (22) hinged in the region between the beam sections (23, 24) to a locating point (38) at the outer end of the outer beam section (23), and
with a trolley travelling winch and a hoisting winch (7, 8),
characterised in that
both winches (7, 8) are located in the region of the revolving superstructure or superstructure frame (3),
the trolley cable (9) runs over at least one sheave (12,13) mounted in the region of the lower end of the outer tower section (6), one sheave (14) mounted in the region of the upper end of the outer tower section (6), one sheave (15) mounted in the region of the lower end of the inner tower section (21), and over sheaves (16,18,19) mounted in the region of the tower head, the outer end of the outer beam section (23) of the jib and in the region of the articulated joint (25) of the beam sections (23, 24) to a locating point of a trolley (20) and
the hoisting cable (39) runs over intermediate sheaves (40,41), deflecting sheaves of the trolley (20) and the roller or rollers of the crane hook (43) to a locating point (44) at the outer end of the outer beam section (23).
2. Crane as in Claim 1, characterised in that the trolley (20) is connected to the tower head via a cable (25) which forms a loop in the region of the tower, in which loop a weight (28) is suspended.
3. Crane as in Claim 1, characterised in that the hoisting cable (39) is reeved over sheaves (40, 41 ) mounted on the rear bracing wire (34) and the superstructure frame (3) in the manner of a block-and-tackle system.
4. Crane as in one of the Claims 1 to 3, characterised in that the weight (28) and/or the trolley (20) car be locked in pre-defined positions.
5. Crane as in Claim 1, characterised in that the hoisting cable (39) is guided around sheaves (14, 15, 16) mounted at the upper end of the outer tower section (6), at the lower end of the inner tower section (21) and in the region of the tower head to the sheaves of the trolley (20).
6. Crane as in Claim 5, characterised in that the sheave (51) mounted at the lower end of the inner tower section (21) can be detached and can be attached as the lower block of a block-and-tackle system to a cable (56) which runs over deflection sheaves and whose other end is connected to the rear bracing wire (34).
7. Crane as in Claim 3, characterised in that during luffing of the outer tower section (6) the sheave is detached from the superstructure frame (3) and provided with a crane hook to ballast the crane while acting as the lower block.
EP84114818A 1984-01-13 1984-12-05 Crane with telescopic tower Expired EP0150344B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84114818T ATE42942T1 (en) 1984-01-13 1984-12-05 CRANE WITH TELESCOPIC TOWER.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3401094 1984-01-13
DE3401094A DE3401094C2 (en) 1984-01-13 1984-01-13 Crane with telescopic tower

Publications (3)

Publication Number Publication Date
EP0150344A2 EP0150344A2 (en) 1985-08-07
EP0150344A3 EP0150344A3 (en) 1987-09-09
EP0150344B1 true EP0150344B1 (en) 1989-05-10

Family

ID=6224943

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84114818A Expired EP0150344B1 (en) 1984-01-13 1984-12-05 Crane with telescopic tower

Country Status (3)

Country Link
EP (1) EP0150344B1 (en)
AT (1) ATE42942T1 (en)
DE (2) DE3401094C2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3422146A1 (en) * 1984-02-21 1985-08-22 Liebherr-Werk Bischofshofen GmbH, Bischofshofen CRANE WITH TELESCOPIC TOWER
DE3719986A1 (en) * 1987-06-15 1988-12-29 Liebherr Werk Biberach Gmbh Tower slewing crane
CN101962156B (en) * 2010-10-18 2012-04-04 南京工业大学 Foldable fast-loading tower crane

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE976018C (en) * 1953-05-21 1963-01-17 Hans Tax Tower crane with a tower that can be erected around a horizontal axis of the crane carriage
AT294370B (en) * 1969-10-22 1971-11-25 Wetzel Kg Tower crane
FR2138254B2 (en) * 1971-05-21 1975-10-10 Esteve Andre
FR2236772A1 (en) * 1973-07-03 1975-02-07 Rock Sa Tower crane erection system - has hoist rope reeved round pulley block attached to erection winch rope
FR2398017A1 (en) * 1977-07-22 1979-02-16 Acme IMPROVEMENTS TO SYSTEMS FOR FOLDING OR DEPLOYING THE ARTICULATED BOOM OF A TELESCOPIC MAST CRANE
FR2422581A1 (en) * 1978-04-10 1979-11-09 Potain Sa Tower crane with telescopic mast - has ground counterbalancing beam for rope passing over pulley above end of jib
DE2944473A1 (en) * 1979-11-03 1981-05-14 Cadillon S.A., Charolles Transportable crane with folding boom - uses cables controlling load carriage to fold boom for transport
DE3005984C2 (en) * 1980-02-18 1985-04-11 Pekazett Baumaschinen GmbH, 6660 Zweibrücken Tower crane
DE8009033U1 (en) * 1980-04-01 1980-09-04 Liebherr-Werk Bischofshofen Gmbh, Bischofshofen (Oesterreich) CRANE WITH TELESCOPE TOWER
DE3229949C1 (en) * 1982-08-12 1983-11-17 Peiner Hebe- Und Transportsysteme Gmbh, 5500 Trier Tower crane

Also Published As

Publication number Publication date
DE3478102D1 (en) 1989-06-15
DE3401094A1 (en) 1985-07-25
EP0150344A3 (en) 1987-09-09
ATE42942T1 (en) 1989-05-15
EP0150344A2 (en) 1985-08-07
DE3401094C2 (en) 1986-12-18

Similar Documents

Publication Publication Date Title
EP1894883B1 (en) Crane vehicle
EP0779236A1 (en) Mobile crane
EP0132572B1 (en) Crane with a telescopic tower
AT523097A2 (en) VEHICLE CRANE WITH A TELESCOPIC JIB AND A VEHICLE CRANE SYSTEM AND PROCEDURE FOR ASSEMBLING A TENSION DEVICE ON THE TELESCOPIC JIB OF A VEHICLE CRANE
DE3510116C2 (en)
DE9316113U1 (en) Tower crane
EP0624542A2 (en) Crane with a telescopic tower
EP0150344B1 (en) Crane with telescopic tower
DE2300643A1 (en) VEHICLE CRANE
EP0384112B1 (en) Tower crane, preferably a crane rotating at the top of the tower
EP0152562A2 (en) Crane with telescopic tower
DE19730361A1 (en) Mobile jib crane with counterbalancing jib - has counter-jib on which ballast is hung, and hydraulic ram which swivels it, both being fulcrumed to the supporting frame which is bolted at at least two connecting points on the rotating deck
EP0296383A1 (en) Turnable tower crane
DE2101841C3 (en) Jib crane
DE20314561U1 (en) crane
AT526450A2 (en) Mobile crane with a detachable attached superstructure and setup process for this
DE2014228A1 (en) Tower crane
EP1084983A1 (en) Tower crane
DE4206359A1 (en) Tower crane with single drive - uses guide pulleys placed on boom and trolley, to lift and move hook
DE1252862B (en) Tower crane
DE3222875A1 (en) Crane
DE1807676C (en) Tower crane
EP0997427A1 (en) Tower slewing crane
DE9214587U1 (en) Work platform
DE2623299A1 (en) Slewing telescopic tower crane - has rope between derricking gantry and superstructure of length to match telescopic tower height

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): AT BE CH DE FR GB IT LI NL

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE CH DE FR GB IT LI NL

17P Request for examination filed

Effective date: 19871030

17Q First examination report despatched

Effective date: 19880413

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH DE FR GB IT LI NL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Effective date: 19890510

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.

Effective date: 19890510

Ref country code: GB

Effective date: 19890510

Ref country code: BE

Effective date: 19890510

REF Corresponds to:

Ref document number: 42942

Country of ref document: AT

Date of ref document: 19890515

Kind code of ref document: T

REF Corresponds to:

Ref document number: 3478102

Country of ref document: DE

Date of ref document: 19890615

ET Fr: translation filed
NLV1 Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
GBV Gb: ep patent (uk) treated as always having been void in accordance with gb section 77(7)/1977 [no translation filed]
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Effective date: 19891205

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Effective date: 19891231

Ref country code: CH

Effective date: 19891231

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 19941208

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19950125

Year of fee payment: 11

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Effective date: 19960830

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Effective date: 19960903

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST