EP0620801B1 - Gantry crane - Google Patents

Gantry crane Download PDF

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Publication number
EP0620801B1
EP0620801B1 EP94900801A EP94900801A EP0620801B1 EP 0620801 B1 EP0620801 B1 EP 0620801B1 EP 94900801 A EP94900801 A EP 94900801A EP 94900801 A EP94900801 A EP 94900801A EP 0620801 B1 EP0620801 B1 EP 0620801B1
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EP
European Patent Office
Prior art keywords
side parts
cross
crane
gantry crane
travelling
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP94900801A
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German (de)
French (fr)
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EP0620801A1 (en
Inventor
Walter LÄNGE
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 Nenzing GmbH
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Liebherr Werk Nenzing GmbH
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Publication date
Priority claimed from DE4302894A external-priority patent/DE4302894A1/en
Application filed by Liebherr Werk Nenzing GmbH filed Critical Liebherr Werk Nenzing GmbH
Publication of EP0620801A1 publication Critical patent/EP0620801A1/en
Application granted granted Critical
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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
    • B66C5/00—Base supporting structures with legs
    • B66C5/02—Fixed or travelling bridges or gantries, i.e. elongated structures of inverted L or of inverted U shape or tripods
    • B66C5/06—Fixed or travelling bridges or gantries, i.e. elongated structures of inverted L or of inverted U shape or tripods with runways or tracks supported for lateral swinging movements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C19/00—Cranes comprising trolleys or crabs running on fixed or movable bridges or gantries

Definitions

  • the invention relates to a gantry crane, in particular a ship gantry crane, with a bridge, which has two parallel cross members, which form the carriageway for a traveling crane, according to the preamble of patent claim 1.
  • Bridge cranes of this type are built, for example, on ocean-going vessels.
  • the crane is usually used to handle containers, bulk goods and wood products. At least two such bridge cranes are often used to unload ships faster.
  • a bridge crane is also known from DE-A-1 962 228, in which the articulated side parts can be folded into a rest position, in which they are each so vertical are arranged to the cross beams that their tips point away from the cross beams.
  • a bridge crane with a jib is already known from US-A-3 486 641, the jib being foldable into a rest position, so that the jib extends into the supports of the bridge crane.
  • the object of the present invention is therefore to develop a generic overhead crane in such a way that a collision of the pivotable side parts is avoided.
  • the cross members are arranged at different heights in relation to one another, so that the side parts in their rest position one above the other and so that they are arranged collision-free.
  • a height compensation of the differently high cross beams is preferably carried out in that the overhead crane has lateral, in each case the chassis-supporting wall parts, the height of which is adapted to the height of the cross beams in such a way that the overhead crane is arranged essentially horizontally.
  • a trolley carrying an unloading arrangement can be arranged to be movable on the overhead crane.
  • the side parts can be hydraulic or electrical, i.e. by means of a corresponding electric motor, from its rest position into the position in which they are aligned with the cross members, can be folded.
  • the side parts can be telescopic.
  • the overhead crane 10 shown in FIG. 1 is arranged to be movable along a ship's hold 12.
  • the overhead crane 10 initially consists of the portals 14 and 16, in which the traveling girder and supports form a U-shape when viewed from the side.
  • the respective ends of the supports of these portals are connected via cross members 18 and 20.
  • the cross members 18 and 20 form at the same time the lane for a traveling crane 30.
  • side parts 22 and 24 are each articulated at the ends of the cross member 20 and side parts 26 and 28 are each articulated at the ends of the cross member 18.
  • the side parts 22, 24 and 26, 28 are aligned with the cross members 20 and 18, so that a correspondingly extended track for the overhead crane 30 is formed.
  • the overhead crane can thus be moved in the double arrow direction b along the roadway thus formed, while the gantry can be moved along the double arrow direction a.
  • the supports of the portals 14 and 16 for the cross members 18 and 20 are of different lengths, so that the parallel cross members 18 and 20 are arranged at different heights.
  • FIG. 2 Due to the different height arrangement of the cross members 18 and 20, it is easily possible to pivot the side parts 22, 24 or 26 and 28 by 90 ° into their rest position, the respective ones in the rest position Tips 42, 44 or 46 and 48 of the side parts 22, 24 or 26, 28 are aligned in the direction of the opposite cross member 18 or 20.
  • the side part 22 can be arranged above the side part 26 in the rest position due to the differently high cross members, while the side part 24 is arranged above the side part 28.
  • the side wall parts 34 and 36 of the overhead crane which each accommodate the trolleys for the overhead crane, are of different heights.
  • the different heights, the different heights of the cross members 18 and 20 compensated.
  • a cat 32 is slidably mounted on the overhead crane 30 in the double arrow direction c.
  • the cat 32 carries an unloading arrangement 38 which, in the exemplary embodiment shown, serves to hold containers 40.
  • the containers 40 can be moved or pivoted with the unloading arrangement 38 in the double arrow direction d or double arrow direction e.
  • the side parts 22, 24, 26 and 28 can be telescopic in a manner not shown here.
  • An alternative embodiment which is not shown in the figures, can comprise two cross members of the same height.
  • the cross member 18 is, for example, comparatively shorter than the cross member 20.
  • the side parts 26 and 28 are somewhat longer than the side parts 22 and 24. In the rest position, the side parts are no longer one above the other, as in that previously explained with reference to the figure embodiment. In this case, the side parts lie side by side in the rest position.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Leg Units, Guards, And Driving Tracks Of Cranes (AREA)
  • Ship Loading And Unloading (AREA)
  • Carriers, Traveling Bodies, And Overhead Traveling Cranes (AREA)

Abstract

The invention concerns a gantry crane (10), in particular a gantry crane for installation on board ships, with a gantry comprising two parallel cross-beams (18, 20) which form the track for the overhead crane unit. Lateral extension pieces (22, 24, 26, 28) are hinged to the end of each of the cross-beams in such a way that they can be swung out as necessary to lengthen the track. The invention calls for the extension pieces (22, 24, 26, 28) to be designed so that they can swing through 90° from the position in which they are flush with the cross-beams into the stowed position in which their ends (42, 44, 46, 48) are directed towards the other cross-beams.

Description

Die Erfindung betrifft einen Brückenkran, insbesondere Schiffsbrückenkran, mit einer Brücke, die zwei parallel verlaufende, die Fahrbahn für einen Laufkran bildende Querträger aufweist, nach dem Oberbegriff des Patentanspruchs 1.The invention relates to a gantry crane, in particular a ship gantry crane, with a bridge, which has two parallel cross members, which form the carriageway for a traveling crane, according to the preamble of patent claim 1.

Derartige Brückenkrane werden beispielsweise auf Hochseeschiffen aufgebaut. Der Kran wird in der Regel zum Umschlag von Containern, Schüttgütern und Holzprodukten eingesetzt. Zur schnelleren Entladung der Schiffe werden häufig zumindest zwei solcher Brückenkrane eingesetzt.Bridge cranes of this type are built, for example, on ocean-going vessels. The crane is usually used to handle containers, bulk goods and wood products. At least two such bridge cranes are often used to unload ships faster.

Aus der US-A-3 244 297 sowie aus "The Marine Engineer and Naval Architect", Band 86, Nr. 1042, Januar 1963, Maidstone Seite 3 - 5 sind bereits Brückenkrane mit Querträgern bekannt, an deren Enden jeweils anklappbare Seitenteile zur wahlweisen Verlängerung der Fahrbahn angelenkt sind, wobei die Seitenteile von der Stellung, in der sie mit den Querträgern fluchten, um 90° in ihre Ruheposition klappbar sind, in der ihre Spitzen in Richtung auf den jeweils anderen Querträger weisen. Außerdem ist es aus der US-A-3 244 297 auch bekannt, die angelenkten Seitenteile in andere bevorzugte Ruhepositionen zu klappen, insbesondere parallel zu den Stützen oder aufliegend auf der Oberseite der Querträger.From US-A-3 244 297 and from "The Marine Engineer and Naval Architect", volume 86, no. 1042, January 1963, Maidstone page 3 - 5, gantry cranes with cross members are already known, at the ends of which hinged side parts can be optionally selected Extension of the roadway are articulated, the side parts from the position in which they are aligned with the cross members, can be folded by 90 ° into their rest position, in which their tips point in the direction of the other cross member. It is also known from US-A-3 244 297 to fold the hinged side parts into other preferred rest positions, in particular parallel to the supports or lying on top of the cross members.

Aus der DE-A-1 962 228 ist weiterhin ein Brückenkran bekannt, bei dem die angelenkten Seitenteile in eine Ruheposition klappbar sind, in der sie jeweils derart senkrecht zu den Querträgern angeordnet sind, daß ihre Spitzen von den Querträgern wegweisen.A bridge crane is also known from DE-A-1 962 228, in which the articulated side parts can be folded into a rest position, in which they are each so vertical are arranged to the cross beams that their tips point away from the cross beams.

Weiterhin ist es aus der US-A-3 414 143 ist es bereits bekannt, ungleiche Bodengegebenheiten durch unterschiedlich lange, die Brücke des Brückenkrans abstützende Stützen auszugleichen.Furthermore, it is already known from US Pat. No. 3,414,143 to compensate for uneven ground conditions by means of supports of different lengths that support the bridge of the overhead crane.

Aus der US-A-3 486 641 ist bereits ein Brückenkran mit einem Ausleger bekannt, wobei der Ausleger in eine Ruheposition klappbar ist, so daß der Ausleger in Verlängerung der Stützen des Brückenkrans verläuft.A bridge crane with a jib is already known from US-A-3 486 641, the jib being foldable into a rest position, so that the jib extends into the supports of the bridge crane.

Aus der US-A-1 558 520 ist schließlich ein Brückenkran mit einem austeleskopierbaren Ausleger bekannt.Finally, from US-A-1 558 520 a bridge crane with a telescopic boom is known.

Nach innen verschwenkbare Seitenteile haben den Vorteil, daß der Brückenkran auch dann schon in Arbeitsposition gebracht werden kann, wenn sperriges Gut, beispielsweise Container, unmittelbar neben ihm aufgeschichtet sind. Nachteilig an dieser Lösung ist jedoch, daß eine Kollisionsgefahr der beiden Seitenteile besteht, was eine längere Bereitstellungszeit des Brückenkrans aus seiner Ruheposition zur Folge hat. Außerdem können die beiden Seitenteile nicht zugleich vollständig um 90° verschwenkt werden, da das zuerst eingeschwenkte Seitenteil das komplette Einschwenken des anderen Seitenteils verhindert.Side parts which can be pivoted inwards have the advantage that the overhead crane can be brought into the working position even when bulky goods, for example containers, are piled up right next to it. A disadvantage of this solution, however, is that there is a risk of collision between the two side parts, which results in a longer provision time of the overhead crane from its rest position. In addition, the two side parts cannot be swiveled completely through 90 ° at the same time, since the side part swung in first prevents the other side part from swiveling in completely.

Aufgabe der vorliegenden Erfindung ist es daher, einen gattungsgemäßen Brückenkran derart weiterzubilden, daß eine Kollision der verschwenkbaren Seitenteile vermieden wird.The object of the present invention is therefore to develop a generic overhead crane in such a way that a collision of the pivotable side parts is avoided.

Ausgehend von einem gattungsgemäßen Brückenkran wird diese Aufgabe durch die kennzeichnenden Merkmale des Patentanspruchs 1 gelöst. Gemäß der erfindungsgemäßen Lösung sind die Querträger im Verhältnis zueineander unterschiedlich hoch angeordnet, so daß die Seitenteile in ihrer Ruheposition übereinander und damit kollisionsfrei angeordnet sind. Ein Höhenausgleich der unterschiedlich hohen Querträger erfolgt vorzugsweise dadurch, daß der Laufkran seitliche, jeweils die fahrwerketragende Wandteile hat, die in ihrer Höhe derart an die Höhe der Querträger angepaßt ist, daß der Laufkran im Wesentlichen waagerecht angeordnet ist.Starting from a generic overhead crane, this object is achieved by the characterizing features of claim 1. According to the solution according to the invention, the cross members are arranged at different heights in relation to one another, so that the side parts in their rest position one above the other and so that they are arranged collision-free. A height compensation of the differently high cross beams is preferably carried out in that the overhead crane has lateral, in each case the chassis-supporting wall parts, the height of which is adapted to the height of the cross beams in such a way that the overhead crane is arranged essentially horizontally.

Auf dem Laufkran kann eine Laufkatze verfahrbar angeordnet sein, die eine Entladeanordnung trägt.A trolley carrying an unloading arrangement can be arranged to be movable on the overhead crane.

Die Seitenteile können hydraulisch oder elektrisch, d.h. über einen entsprechenden Elektromotor, von ihrer Ruheposition in die Stellung, in der sie mit den Querträgern fluchten, klappbar sein. Die Seitenteile können teleskopierbar sein.The side parts can be hydraulic or electrical, i.e. by means of a corresponding electric motor, from its rest position into the position in which they are aligned with the cross members, can be folded. The side parts can be telescopic.

Weitere Einzelheiten und Vorteile der Erfindung werden anhand eines in der Zeichnung dargestellten bevorzugten Ausführungsbeispiels näher erläutert. Es zeigen:

Fig. 1:
eine perspektivische Darstellung einer Ausführungsform des erfindungsgemäßen Brückenkrans in Betriebsposition und
Fig. 2:
den Brückenkran gemäß Fig. 1 in Ruheposition.
Further details and advantages of the invention will be explained in more detail with reference to a preferred embodiment shown in the drawing. Show it:
Fig. 1:
a perspective view of an embodiment of the bridge crane according to the invention in the operating position and
Fig. 2:
the overhead crane according to FIG. 1 in the rest position.

Der in Fig. 1 dargestellte Brückenkran 10 ist längs zu einem Schiffsladeraum 12 verfahrbar angeordnet. Der Brückenkran 10 besteht zunächst aus den Portalen 14 und 16, bei dem Fahrträger und Stützen von der Seite gesehen eine U-Form bilden. Die jeweiligen Enden der Stützen dieser Portale sind über Querträger 18 und 20 verbunden. Die Querträger 18 und 20 bilden gleichzeitig die Fahrbahn für einen Laufkran 30.The overhead crane 10 shown in FIG. 1 is arranged to be movable along a ship's hold 12. The overhead crane 10 initially consists of the portals 14 and 16, in which the traveling girder and supports form a U-shape when viewed from the side. The respective ends of the supports of these portals are connected via cross members 18 and 20. The cross members 18 and 20 form at the same time the lane for a traveling crane 30.

Zur Verlängerung der Fahrbahn sind Seitenteile 22 und 24 jeweils an den Enden des Querträgers 20 und Seitenteile 26 und 28 jeweils an den Enden des Querträgers 18 angelenkt. In der in Fig. 1 dargestellten Betriebsposition fluchten die Seitenteile 22, 24 bzw. 26, 28 mit den Querträgern 20 und 18, so daß eine entsprechend verlängerte Fahrbahn für den Laufkran 30 gebildet ist. Der Laufkran kann also in Doppelpfeilrichtung b entlang der so gebildeten Fahrbahn verfahren werden, während das Portal entlang der Doppelpfeilrichtung a verfahren werden kann.To extend the carriageway, side parts 22 and 24 are each articulated at the ends of the cross member 20 and side parts 26 and 28 are each articulated at the ends of the cross member 18. In the operating position shown in Fig. 1, the side parts 22, 24 and 26, 28 are aligned with the cross members 20 and 18, so that a correspondingly extended track for the overhead crane 30 is formed. The overhead crane can thus be moved in the double arrow direction b along the roadway thus formed, while the gantry can be moved along the double arrow direction a.

In der hier dargestellten Ausführungsform sind die Stützen der Portale 14 und 16 für die Querträger 18 und 20 verschieden lang, so daß die parallelen Querträger 18 und 20 verschieden hoch angeordnet sind. Dies wird insbesondere deutlich aus der Fig. 2. Aufgrund der verschieden hohen Anordnung der Querträger 18 und 20 ist es problemlos möglich, die Seitenteile 22, 24 bzw. 26 und 28 um 90° in ihre Ruheposition zu verschwenken, wobei in der Ruheposition die jeweiligen Spitzen 42, 44 bzw. 46 und 48 der Seitenteile 22, 24 bzw. 26, 28 in Richtung des gegenüberliegenden Querträgers 18 bzw. 20 ausgerichtet sind. Wie in Fig. 2 dargestellt kann aufgrund der verschieden hohen Querträger das Seitenteil 22 in der Ruheposition oberhalb dem Seitenteil 26 angeordnet sein, während das Seitenteil 24 oberhalb des Seitenteils 28 angeordnet ist.In the embodiment shown here, the supports of the portals 14 and 16 for the cross members 18 and 20 are of different lengths, so that the parallel cross members 18 and 20 are arranged at different heights. This is particularly clear from FIG. 2. Due to the different height arrangement of the cross members 18 and 20, it is easily possible to pivot the side parts 22, 24 or 26 and 28 by 90 ° into their rest position, the respective ones in the rest position Tips 42, 44 or 46 and 48 of the side parts 22, 24 or 26, 28 are aligned in the direction of the opposite cross member 18 or 20. As shown in FIG. 2, the side part 22 can be arranged above the side part 26 in the rest position due to the differently high cross members, while the side part 24 is arranged above the side part 28.

Damit der Laufkran 30 waagerecht ausgerichtet ist, sind die Seitenwandteile 34 bzw. 36 des Laufkrans, die jeweils die Fahrwerke für den Laufkran aufnehmen, verschieden hoch ausgebildet. Wie den Fig. 1 und 2 zu entnehmen ist, wird durch die verschieden hohe Bauweise die unterschiedliche Höhe der Querträger 18 bzw. 20 ausgeglichen.So that the overhead crane 30 is aligned horizontally, the side wall parts 34 and 36 of the overhead crane, which each accommodate the trolleys for the overhead crane, are of different heights. As can be seen in FIGS. 1 and 2, the different heights, the different heights of the cross members 18 and 20 compensated.

Auf dem Laufkran 30 ist in Doppelpfeilrichtung c verschiebbar eine Katze 32 gelagert. Die Katze 32 trägt eine Entladeanordnung 38, die im dargestellten Ausführungsbeispiel zur Aufnahme von Containern 40 dient. Die Container 40 sind mit der Entladeanordnung 38 in Doppelpfeilrichtung d bzw. Doppelpfeilrichtung e verfahr- bzw. verschwenkbar.A cat 32 is slidably mounted on the overhead crane 30 in the double arrow direction c. The cat 32 carries an unloading arrangement 38 which, in the exemplary embodiment shown, serves to hold containers 40. The containers 40 can be moved or pivoted with the unloading arrangement 38 in the double arrow direction d or double arrow direction e.

Die Seitenteile 22, 24, 26 und 28 können in hier nicht näher dargestellter Art und Weise teleskopierbar sein.The side parts 22, 24, 26 and 28 can be telescopic in a manner not shown here.

Eine alternative Ausführungsform, die in den Figuren nicht näher dargestellt ist, kann zwei gleich hohe Querträger umfassen. In diesem Fall ist aber beispielsweise der Querträger 18 vergleichsweise kürzer ausgebildet als der Querträger 20. Dafür sind die Seitenteile 26 bzw. 28 etwas länger ausgebildet als die Seitenteile 22 bzw. 24. In der Ruheposition liegen dann die Seitenteile nicht mehr übereinander, wie in dem anhand der Figur dargestellten Ausführungsbeispiel zuvor erläutert. In diesem Fall liegen die Seitenteile in der Ruheposition nebeneinander.An alternative embodiment, which is not shown in the figures, can comprise two cross members of the same height. In this case, however, the cross member 18 is, for example, comparatively shorter than the cross member 20. For this purpose, the side parts 26 and 28 are somewhat longer than the side parts 22 and 24. In the rest position, the side parts are no longer one above the other, as in that previously explained with reference to the figure embodiment. In this case, the side parts lie side by side in the rest position.

Claims (5)

  1. A gantry crane, in particular a ship's gantry crane, with a gantry that has two cross girders (20, 18) forming the runway for a travelling crane whereon there are articulated side parts (22, 24; 26, 28) which can be respectively folded for the selectable extension of the runway, wherein the side parts (22, 24; 26, 28) can be folded from the position wherein they are aligned with the cross girders (20, 18) through 90° into their rest position wherein their tips (42, 44; 46, 48) point in the direction towards the respective other cross girder (18, 20),
    characterized in that
    the cross girders (18, 20) are arranged at different levels in relation to one another, so that the side parts (22, 24; 26, 28) are arranged in their rest position on top of one another.
  2. A gantry crane according to claim 1, characterized in that the travelling crane (30) has wall portions (34, 36) respectively carrying the travelling mechanisms which are adapted in their height to the height of the cross girders (20, 18) in such a way that the travelling crane (30) is arranged substantially horizontally.
  3. A gantry crane according to one of claims 1 to 2, characterized in that a travelling crab (32), which carries an unloading arrangement (38), is disposed for displacement on the travelling orane (30).
  4. A gantry crane according to one of claims 1 to 3, characterized in that the side parts (22, 24; 26, 28) can be folded hydraulically or electrically from their rest position into the position wherein they are aligned with the cross girders (20, 18).
  5. A gantry crane according to one of claims 1 to 4, characterized in that the side parts (22, 24; 26, 28) are telescopable.
EP94900801A 1992-11-11 1993-11-10 Gantry crane Expired - Lifetime EP0620801B1 (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
DE4238096 1992-11-11
DE4238096 1992-11-11
DE4302894A DE4302894A1 (en) 1992-11-11 1993-02-02 Overhead crane
DE4302894 1993-02-02
PCT/EP1993/003153 WO1994011292A1 (en) 1992-11-11 1993-11-10 Gantry crane

Publications (2)

Publication Number Publication Date
EP0620801A1 EP0620801A1 (en) 1994-10-26
EP0620801B1 true EP0620801B1 (en) 1997-09-17

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EP94900801A Expired - Lifetime EP0620801B1 (en) 1992-11-11 1993-11-10 Gantry crane

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US (1) US5593050A (en)
EP (1) EP0620801B1 (en)
CN (1) CN1090827A (en)
CA (1) CA2127720A1 (en)
NO (1) NO307250B1 (en)
WO (1) WO1994011292A1 (en)

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NO168937C (en) * 1989-04-26 1992-04-22 Jebsen Skipsrederi DEVICE FOR PIECE VESSELS WITH SIDE DOOR OPENINGS.

Also Published As

Publication number Publication date
CA2127720A1 (en) 1994-05-26
EP0620801A1 (en) 1994-10-26
NO941642L (en) 1994-05-26
US5593050A (en) 1997-01-14
CN1090827A (en) 1994-08-17
NO307250B1 (en) 2000-03-06
WO1994011292A1 (en) 1994-05-26
NO941642D0 (en) 1994-05-04

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