EP2018340A1 - Telescopic crane boom - Google Patents

Telescopic crane boom

Info

Publication number
EP2018340A1
EP2018340A1 EP07722342A EP07722342A EP2018340A1 EP 2018340 A1 EP2018340 A1 EP 2018340A1 EP 07722342 A EP07722342 A EP 07722342A EP 07722342 A EP07722342 A EP 07722342A EP 2018340 A1 EP2018340 A1 EP 2018340A1
Authority
EP
European Patent Office
Prior art keywords
boom
head
box
telescopic crane
crane boom
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.)
Granted
Application number
EP07722342A
Other languages
German (de)
French (fr)
Other versions
EP2018340B1 (en
Inventor
Frank Conrad
Jürgen Appel
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.)
Tadano Demag GmbH
Original Assignee
Terex Demag 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 Terex Demag GmbH filed Critical Terex Demag GmbH
Publication of EP2018340A1 publication Critical patent/EP2018340A1/en
Application granted granted Critical
Publication of EP2018340B1 publication Critical patent/EP2018340B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • B66C23/62—Constructional features or details
    • B66C23/64—Jibs
    • B66C23/66—Outer or upper end constructions

Abstract

A telescopic crane boom including a plurality of telescopically assembled tubular box sections including a base box section and an innermost box section having an open cross-section, and a boom head with a frame fixed to the outside circumference of the innermost box section. The head has a plurality of deflecting pulleys mounted on the frame, but no part extending inside the open cross section on the innermost base box section, whereby at least one additional box section can be inserted into the innermost box section in order to extend the boom.

Description

Teleskopierbarer KranauslegerTelescopic crane jib
Die Erfindung betrifft einen teleskopierbaren Kranausleger, mit einem rohrförmigen Basisauslegerkasten und mindestens einem Auslegerkasten, der innerhalb des Basisauslegerkastens teleskopierbar angeordnet ist, sowie einem Kopf mit Umlenkrollen am außenseitigen Ende des innersten Auslegerkastens.The invention relates to a telescopic boom, comprising a tubular base boom box and at least one boom box telescopically disposed within the base boom box, and a head having pulleys at the outboard end of the innermost boom box.
Stand der TechnikState of the art
Das Gesamtgewicht eines Mobilkrans mit Teleskopausleger, der für den öffentlichen Straßenverkehr zugelassen ist, wird durch die zulässige Achslast (z.B. 12 t in Deutschland) und der Anzahl der Achsen festgelegt. Teile des Krans, wie Gegengewicht und Hauptauslegerverlängerung, müssen oftmals getrennt transportiert werden, um innerhalb der zulässigen Achslasten zu bleiben. Auch die Länge des Teleskopauslegers, der aus biegesteifen Blechkästen besteht, schränkt die Transportmöglichkeiten und das maximal erlaubte Gewicht pro Einheit ein.The total weight of a mobile crane with a telescopic boom approved for use on public roads is determined by the permissible axle load (for example, 12 tonnes in Germany) and the number of axles. Parts of the crane, such as counterweight and main boom extension, often need to be transported separately to stay within allowable axle loads. The length of the telescopic boom, which consists of rigid sheet metal boxes, limits the transport possibilities and the maximum permissible weight per unit.
Der letzte Innenkasten, also der innerste Auslegerabschnitt, trägt am vorderen Ende einen Kopf mit einem Rollensatz zum Einscheren des Hubseils, zur Umlenkung des Hubseils (Einlaufrolle) und eventuell Befestigungspunkte für eine Hauptauslegerverlängerung sowie für eine Auslegerabspannung. Der Kopf ist in den Querschnitt des Kastens hineingebaut und verschließt diesen zum großen Teil durch Stahlbauteile und Montageteile, die außer durch komplette Demontage des Innenkastens nicht entfernt werden können.The last inner box, so the innermost boom section, carries at the front end a head with a roller set for cutting the hoist rope, for the deflection of the hoisting rope (inlet roller) and possibly attachment points for a main boom extension and for a boom bracing. The head is built into the cross-section of the box and largely closes it by steel components and mounting parts that can not be removed except by complete disassembly of the inner box.
Will man den Teleskopausleger durch zusätzliche Innenkästen verlängern, sind diese getrennt zu transportieren und auf der Baustelle zu montieren. Hierzu muss der bis dahin innerste Auslegerkasten mit dem Kopf zuerst entfernt werden. Anschließend muss ein Kasten ohne Kopf aber mit gleichem Querschnitt und vorderer Lagerung, ggf. mit zusätzlichen weiteren inneren Auslegerkästen, eingeschoben werden.If you want to extend the telescopic boom by additional inner boxes, these are to be transported separately and mounted on the site. For this, the hitherto innermost boom box must first be removed with the head. Subsequently, a box without a head but with the same cross-section and front storage, possibly with additional additional inner boom boxes inserted.
Nachteilig ist, dass man den innersten Auslegerkasten, mit dem daran angeordneten Kopf und dem zugehörigen Rollensatz erst demontieren muß, aber beim Langausleger nicht weiter verwenden kann, so dass für eine Verlängerung zwei Kästen mit gleichem Querschnitt benötigt werden. Ein Kasten bleibt nach der Verlängerung nutzlos übrig. Der Erfindung liegt die Aufgabe zugrunde, den Demontage- bzw. Montageaufwand bei einem Umbau eines Auslegers zu einem längeren Ausleger zu verringern und einen nach dem Umbau übrigbleibenden und an dieser Stelle überflüssigen Auslegerkasten zu vermeiden.The disadvantage is that you have to disassemble the innermost boom box, with the head arranged thereon and the associated set of rollers only, but can not continue to use the long boom, so that two boxes with the same cross section are needed for an extension. A box remains useless after the extra time. The invention has for its object to reduce the disassembly or assembly effort in a conversion of a boom to a longer boom and to avoid a remaining after the conversion and unnecessary at this point boom box.
Gelöst wird diese Aufgabe erfindungsgemäß bei einem teleskopierbaren Kranausleger mit einem rohrförmigen Basisauslegerkasten und mindestens einem Innenkasten, der innerhalb des Basisauslegerkastens teleskopierbar angeordnet ist, sowie einem Kopf mit Umlenkrollen am außenseitigen Ende des innersten Auslegerkastens dadurch, dass die Funktionen des Kopfes und der vorderen Lagerung am Ende dieses innersten Kastens in einen Rahmen integriert sind der am Außenumfang des Auslegerkastens derart angeordnet ist, dass alle zum Kopf gehörenden Teile außerhalb des freien Querschnittes des Auslegerkastens angeordnet sind und dass für eine Verlängerung des Auslegers mindestens ein weiterer Auslegerkasten in diesen Kasten einschiebbar ist. .This object is achieved according to the invention in a telescopic boom crane with a tubular base boom box and at least one inner box, which is telescopically disposed within the Basisauslegerkastens, and a head with pulleys at the outside end of the innermost boom box characterized in that the functions of the head and the front storage at the end this innermost box are integrated into a frame which is arranged on the outer circumference of the boom box such that all parts belonging to the head outside the free cross section of the boom box are arranged and that for extension of the boom at least one further boom box is inserted into this box. ,
An den einzuschiebenden Auslegerkästen kann mindestens ein weiterer Auslegerkopf befestigt sein.At least one additional boom head can be fastened to the boom boxes to be inserted.
Vorzugsweise ist der weitere Auslegerkopf am innersten Innenkasten befestigt.Preferably, the further boom head is attached to the innermost inner box.
Nach einer Ausgestaltung der Erfindung sind an dem innersten einzuschiebenden Auslegerkasten Befestigungspunkte für eine Hauptauslegerverlängerung vorhanden.According to one embodiment of the invention, attachment points for a main boom extension are present at the innermost boom box to be inserted.
Die Hauptauslegerverlängerung kann ein wippbarer Hilfsausieger sein oder ein Adapter für einen wippbaren Hilfsausieger.The main boom extension can be a tilting auxiliary ejector or an adapter for a teetering auxiliary ejector.
Nach einer weiteren Ausführung kann der Kopf mindestens eine Einlaufrolle aufweist, die schwenk-, schieb-oder montierbar so am Kopf angeordnet ist, dass sie den freien Querschnitt nicht beinträchtigt.According to a further embodiment, the head may have at least one inlet roller, which is pivotally, slidably mounted or mounted so arranged on the head that it does not affect the free cross section.
Möglich ist auch, dass der Kopf (1 ) mindestens eine Einlaufrolle aufweist, die schwenk-, schieb-oder montierbar so am Kopf angeordnet ist, dass sie in den freien Querschnitt durch Schwenken, Schieben oder Montieren einbringbar ist. Vorteilhaft ist es, wenn der Kopf aus miteinander verbundenen Querverbindungen besteht.It is also possible that the head (1) has at least one inlet roller, which is pivotally mounted, pushed or mounted so arranged on the head that it can be introduced into the free cross section by pivoting, pushing or mounting. It is advantageous if the head consists of interconnected cross connections.
Dabei kann an den Querverbindungen der Rollensatz angeordnet ist.It can be arranged on the cross connections of the roller set.
An den Querverbindungen können Befestigungspunkte für eine Auslegerabspannung angeordnet sein oder es können an den Querverbindungen Gabelköpfe als Befestigungspunkte für eine Auslegerverlängerung angeordnet sein.At the cross connections attachment points can be arranged for a boom bracing or it can be arranged as attachment points for a boom extension at the cross connections clevises.
Nach einer weiteren Ausgestaltung können beide Kopfrollensätze zur Einscherung einer Unterflasche benutzbar sein.According to a further embodiment, both head roller sets can be used for the shearing of a lower bottle.
Möglich ist aber auch, dass nur der Kopfrollensätze des äußeren Auslegerkastens zur Einscherung einer Unterflasche benutzbar ist.It is also possible, however, that only the head roller sets of the outer boom box can be used to shear a lower block.
Schließlich kann der Kopfrollensatz des inneren Auslegerkastens als Seilumlenkung dienen und es ist auch möglich, dass der Auslegerkopf lösbar am Auslegerkasten befestigt ist.Finally, the head roller set of the inner boom box can serve as a cable guide and it is also possible that the boom head is releasably secured to the boom box.
Beschreibung der ErfindungDescription of the invention
Die Erfindung besteht darin, die Funktionen des Kopfes und einer vorderen Lagerung in einen Rahmen zu integrieren, der am Außenumfang des inneren Auslegerkastens oder eines anderen Kastens entweder fest installiert oder montiert ist, wobei der Querschnitt ohne großen Umrüstaufwand zugänglich bleibt, um weitere Innenkästen einzuschieben ohne eine Demontage des Kastens, an dem der Kopf befestigt ist, vornehmen zu müssen.The invention is to integrate the functions of the head and a front bearing in a frame which is either permanently installed or mounted on the outer circumference of the inner boom box or other box, the cross section remains accessible without much retooling effort to insert more inner boxes without disassembly of the box to which the head is attached must make.
Die Erfindung soll nachfolgend an einem in den Zeichnungen gezeigten Ausführungsbeispiel erläutert werden. Dabei zeigt:The invention will be explained below with reference to an embodiment shown in the drawings. Showing:
Fig.1 den am Ausleger montierten Kopf mit Rollensatz, Fig.2 eine Stirnansicht hierzu,1 shows the boom mounted on the boom with roller set, Figure 2 is an end view of this,
Fig.3 eine entsprechende Anordnung mit einer Einlaufrolle und Fig.4 eine Stirnansicht hierzu,3 shows a corresponding arrangement with an inlet roller and FIG. 4 shows an end view for this purpose,
Fig.5 den durch eine erfindungsgemäße Ausführung erzielbaren Verlängerungszustand mit gleichzeitig möglichem Zweikopf/Zweihakenbetrieb.5 shows the attainable by an embodiment of the invention extension state with simultaneous possible two-head / two-hook operation.
Der Kopf 1 besteht aus einem tragenden Stahlbau der vollständig außerhalb des Querschnitts 2 des Auslegerkastens 3 angeordnet ist. Die Gabelköpfe 4,5, als Befestigungspunkte einer Hauptauslegerverlängerung, sind außerhalb der Kastenradien 6 angeordnet und jeweils horizontal und vertikal durch Querverbindungen 7 und 8 miteinander verbunden. Gleichzeitig sind sie in Längsrichtung 9 mit den Kastenradien 6 verbunden, um die Kräfte in den Auslegerkasten 3 einzuleiten.The head 1 consists of a load-bearing steel structure which is arranged completely outside the cross-section 2 of the jib box 3. The clevises 4, 5, as fastening points of a main boom extension, are arranged outside the box radii 6 and connected to each other horizontally and vertically by cross connections 7 and 8. At the same time they are connected in the longitudinal direction 9 with the box radii 6 to initiate the forces in the boom box 3.
An den unteren Gabelköpfen 4 sind Aufhängepunkte 10 für den Rollensatz 11 angeschlossen, dessen Kräfte über die vorhandenen Verbindungen zum Auslegerkasten 3 eingeleitet werden. Am hinteren Ende der oberen Gabelköpfe 5 kann jeweils links und rechts ein Abspannpunkt 12 für z. B. eine seitliche Auslegerabspannung angeordnet sein, dessen Kräfte ebenfalls über die vorhandenen Verbindungen in den Auslegerkasten 3 eingeleitet werden.At the lower fork heads 4 suspension points 10 are connected to the roller set 11, whose forces are introduced via the existing connections to the boom box 3. At the rear end of the upper fork heads 5 can each left and right a guy 12 for z. B. be arranged a lateral Auslegerabspannung whose forces are also introduced via the existing connections in the boom box 3.
Zwischen den oberen Gabelköpfen 5 ist mindestens eine Einlaufrolle 13 für den Rollensatz 11 angeordnet, die auch in der Breite verschieblich sein kann, um bei verschiedenen Einscherungen den Ablenkwinkel des Seils zu minimieren. Wenn diese Einlaufrolle 13 in den Querschnitt 2 hineinragt, ist sie durch Schieben, Drehen oder Wegheben aus dem Querschnitt zu bringen, um zusätzliche Innenkästen einschieben zu können. Es ist auch möglich die Einlaufrolle 13 außerhalb des Querschnittes 2 anzuordnen, so das sie aus diesem nicht entfernt werden muß.Between the upper fork heads 5 at least one inlet roller 13 is arranged for the roller set 11, which can also be displaced in width to minimize the deflection angle of the rope at different Einscherungen. If this inlet roller 13 protrudes into the cross section 2, it must be brought by pushing, turning or lifting out of the cross section in order to insert additional inner boxes can. It is also possible to arrange the inlet roller 13 outside of the cross section 2, so that they do not have to be removed from this.
In die Radien des Kastens 6, dessen Querschnitt 2 bis an das Ende des Kopfes erhalten bleibt, werden Gleitelemente 14 eingebaut.In the radii of the box 6, the cross section 2 is maintained up to the end of the head, sliding elements 14 are installed.
Die Gleitelemente 14 übernehmen die Führung und Lagerung des einzuschiebenden Innenkastens 15, wie dies bei Teleskopauslegern Stand der Technik ist. Die Querverbindungen 7,8 der Gabelköpfe 4,5 versteifen den Kastenquerschnitt 2, wodurch Lagerkräfte aufgenommen werden können.The sliding elements 14 take over the guidance and storage of the inner box 15 to be inserted, as is the case with telescopic jibs in the prior art. The cross connections 7.8 of the fork heads 4.5 stiffen the box cross-section 2, whereby bearing forces can be absorbed.
Ein weiterer erfindungsgemäßer Nutzen eines Teleskopauslegers mit zwei Auslegerköpfen, bei dem also ein Kopf am Auslegerende und ein weiterer Kopf an einem der anderen Auslegerkästen vorhanden ist, wird durch die Möglichkeit eines Zweihakenbetriebs zum Drehen von Lasten dargestellt. Another advantage of the invention of a telescopic boom with two boom heads, in which therefore one head is present at the boom end and another head on one of the other boom boxes is represented by the possibility of a two-hook operation for rotating loads.

Claims

Ansprüche: Claims:
1. Teleskopierbarer Kranausleger, mit einem rohrförmigen Basisauslegerkasten und mindestens einem Auslegerkasten, der innerhalb des Basisauslegerkastens teleskopierbar angeordnet ist, sowie einem Kopf (1 ) mit Umlenkrollen (11 ) am außenseitigen Ende des innersten Auslegerkastens (3), dadurch gekennzeichnet, dass die Funktion des Kopfes und der vorderen Lagerung am Ende dieses innersten Kastens in einen Rahmen integriert sind der am Außenumfang des Auslegerkastens (3) derart angeordnet ist, dass alle zum Kopf (1 ) gehörenden Teile außerhalb des freien Querschnittes des Auslegerkastens angeordnet sind und dass für eine Verlängerung des Auslegers mindestens ein weiterer Auslegerkasten in diesen Kasten einschiebbar ist. .A telescopic crane boom, comprising a tubular base boom box and at least one boom box telescopically disposed within the base boom box, and a head (1) having pulleys (11) at the outboard end of the innermost boom box (3), characterized in that the function of Head and the front storage at the end of this innermost box integrated into a frame which is arranged on the outer circumference of the boom box (3) such that all the head (1) belonging parts are arranged outside the free cross section of the boom box and that for an extension of the Outrigger at least one other boom box is inserted into this box. ,
2. Teleskopierbarer Kranausleger nach Anspruch 1 , dadurch gekennzeichnet, dass an den einzuschiebenden Auslegerkästen mindestens ein weiterer Auslegerkopf befestigt ist.2. Telescopic crane boom according to claim 1, characterized in that at least one further boom head is attached to the boom boxes to be inserted.
3. Teleskopierbarer Kranausleger nach Anspruch 2, dadurch gekennzeichnet, dass der weitere Auslegerkopf vorzugsweise am innersten Innenkasten befestigt ist.3. Teleskopierbarer crane boom according to claim 2, characterized in that the further boom head is preferably attached to the innermost inner box.
4. Teleskopierbarer Kranausleger nach Anspruch 1 , dadurch gekennzeichnet, dass an dem innersten einzuschiebenden Auslegerkasten Befestigungspunkte für eine Hauptauslegerverlängerung vorhanden sind.4. Telescopic crane jib according to claim 1, characterized in that at the innermost to be inserted boom box attachment points for a main boom extension are available.
5. Teleskopierbarer Kranausleger nach Anspruch 4, dadurch gekennzeichnet, dass die Hauptauslegerverlängerung ein wippbarer Hilfsausieger ist.5. Telescopic crane boom according to claim 4, characterized in that the main boom extension is a tiltable Hilfsausieger.
6. Teleskopierbarer Kranausleger nach Anspruch 4, dadurch gekennzeichnet, dass die Hauptauslegerverlängerung ein Adapter für einen wippbaren Hilfsausieger ist. 6. Telescopic crane boom according to claim 4, characterized in that the main boom extension is an adapter for a tiltable Hilfsausieger.
7. Teleskopierbarer Kranausleger nach Anspruch 1 , dadurch gekennzeichnet, dass der Kopf (1 ) mindestens eine Einlaufrolle (13) aufweist, die schwenk-, schieb-oder montierbar so am Kopf angeordnet ist, dass sie den freien Querschnitt nicht beinträchtigt.7. Telescopic crane boom according to claim 1, characterized in that the head (1) has at least one inlet roller (13) which is pivotally mounted, pushed or mounted so arranged on the head that it does not affect the free cross section.
8. Teleskopierbarer Kranausleger nach Anspruch 7, dadurch gekennzeichnet, dass der Kopf (1 ) mindestens eine Einlaufrolle (13) aufweist, die schwenk-, schieb-oder montierbar so am Kopf angeordnet ist, dass sie in den freien Querschnitt durch Schwenken, Schieben oder Montieren einbringbar ist.8. Telescopic crane boom according to claim 7, characterized in that the head (1) has at least one inlet roller (13) which is pivotally mounted, pushed or mounted so arranged on the head that they in the free cross section by pivoting, pushing or Mount is einbringbar.
9. Teleskopierbarer Kranausleger nach Anspruch 1 , dadurch gekennzeichnet, dass der Kopf (1 ) aus miteinander verbundenen Querverbindungen (7,8) besteht.9. Telescopic crane boom according to claim 1, characterized in that the head (1) consists of interconnected cross-connections (7,8).
10. Teleskopierbarer Kranausleger nach Anspruch 9, dadurch gekennzeichnet, dass an den Querverbindungen (7,8) der Rollensatz (11 ) angeordnet ist.10. Telescopic crane boom according to claim 9, characterized in that at the cross connections (7,8) of the roller set (11) is arranged.
11. Teleskopierbarer Kranausleger nach Anspruch 9, dadurch gekennzeichnet, dass an den Querverbindungen (7,8) Befestigungspunkte für eine Auslegerabspannung angeordnet sind.11. Telescopic crane boom according to claim 9, characterized in that at the cross connections (7,8) attachment points are arranged for a boom bracing.
12. Teleskopierbarer Kranausleger nach Anspruch 9, dadurch gekennzeichnet, dass an den Querverbindungen (7,8) Gabelköpfe (4,5) als Befestigungspunkte für eine Auslegerverlängerung angeordnet sind.12. Telescopic crane boom according to claim 9, characterized in that at the cross connections (7,8) fork heads (4,5) are arranged as attachment points for a boom extension.
13. Teleskopierbarer Kranausleger nach Anspruch 2, dadurch gekennzeichnet, dass beide Kopfrollensätze zur Einscherung einer Unterflasche benutzbar sind. 13. Telescopic crane boom according to claim 2, characterized in that both head sets are usable for the shearing of a lower bottle.
14. Teleskopierbarer Kranausleger nach Anspruch 2, dadurch gekennzeichnet, dass nur der Kopfrollensätze des äußeren Auslegerkastens zur Einscherung einer Unterflasche benutzbar ist.14. Telescopic crane boom according to claim 2, characterized in that only the head roller sets of the outer boom box for shearing a lower bottle is usable.
15. Teleskopierbarer Kranausleger nach Anspruch 14, dadurch gekennzeichnet, dass der Kopfrollensatz des inneren Auslegerkastens als Seilumlenkung dient.15. Telescopic crane boom according to claim 14, characterized in that the head set of rollers of the inner boom box serves as a cable deflection.
16. Teleskopierbarer Kranausleger nach Anspruch 1 und 2, dadurch gekennzeichnet, dass der Auslegerkopf lösbar am Auslegerkasten befestigt ist. 16. Telescopic crane boom according to claim 1 and 2, characterized in that the boom head is releasably attached to the boom box.
EP07722342A 2006-05-16 2007-04-26 Telescopic crane boom Active EP2018340B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006023371A DE102006023371A1 (en) 2006-05-16 2006-05-16 Telescopic crane jib
PCT/DE2007/000785 WO2007131469A1 (en) 2006-05-16 2007-04-26 Telescopic crane boom

Publications (2)

Publication Number Publication Date
EP2018340A1 true EP2018340A1 (en) 2009-01-28
EP2018340B1 EP2018340B1 (en) 2011-03-02

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US (1) US8127951B2 (en)
EP (1) EP2018340B1 (en)
JP (1) JP5264710B2 (en)
CN (1) CN101443256B (en)
AT (1) ATE500187T1 (en)
AU (1) AU2007250383A1 (en)
DE (2) DE102006023371A1 (en)
WO (1) WO2007131469A1 (en)

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US8127951B2 (en) 2012-03-06
JP5264710B2 (en) 2013-08-14
JP2009537419A (en) 2009-10-29
CN101443256A (en) 2009-05-27
ATE500187T1 (en) 2011-03-15
DE102006023371A1 (en) 2007-11-22
EP2018340B1 (en) 2011-03-02
US20100038333A1 (en) 2010-02-18
WO2007131469A1 (en) 2007-11-22
DE502007006605D1 (en) 2011-04-14
AU2007250383A1 (en) 2007-11-22
CN101443256B (en) 2013-04-24

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