EP2142464B1 - Crane having telescoping boom - Google Patents

Crane having telescoping boom Download PDF

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Publication number
EP2142464B1
EP2142464B1 EP08836793A EP08836793A EP2142464B1 EP 2142464 B1 EP2142464 B1 EP 2142464B1 EP 08836793 A EP08836793 A EP 08836793A EP 08836793 A EP08836793 A EP 08836793A EP 2142464 B1 EP2142464 B1 EP 2142464B1
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EP
European Patent Office
Prior art keywords
boom
guiding
locking unit
securing
unit
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.)
Active
Application number
EP08836793A
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German (de)
French (fr)
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EP2142464A1 (en
Inventor
Jürgen APPEL
Thomas Krebs
Achim SCHÜTZ
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 EP2142464A1 publication Critical patent/EP2142464A1/en
Application granted granted Critical
Publication of EP2142464B1 publication Critical patent/EP2142464B1/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
    • B66C23/62—Constructional features or details
    • B66C23/64—Jibs
    • B66C23/70—Jibs constructed of sections adapted to be assembled to form jibs or various lengths
    • B66C23/701—Jibs constructed of sections adapted to be assembled to form jibs or various lengths telescopic
    • B66C23/705—Jibs constructed of sections adapted to be assembled to form jibs or various lengths telescopic telescoped by hydraulic jacks

Definitions

  • the invention relates to a crane with a telescopic boom, which are arranged in a basic boom, individually austeleskopierbaren shots after releasing locking bolt connections with a hydraulic piston-cylinder unit and retractable and are bolted in each out - or retracted positions by locking bolts , wherein the piston rod of the piston-cylinder unit is articulated with its rear end at the inner end of the basic boom and at the inner and outer ends of the displaceable cylinder housing per a securing and locking unit is attached, which is detachable with recesses of austeleskopierbaren shots and on the from the articulation of the locking and locking unit facing away from the inner end of the basic boom end a guide profile head is arranged.
  • the object of the invention is to be able to make this extension of the boom without significant changes to the telescoping system itself, so essentially the backup and locking unit (SVE short).
  • This object is achieved according to the invention in a crane with a telescopic boom, which are arranged in a basic boom, individually austeleskopierbaren shots after releasing locking bolt connections with a hydraulic piston-cylinder unit and retractable and in each out - or retracted positions by Locking bolts are bolted, with the piston rod of the piston-cylinder unit with is hinged at its rear end at the inner end of the basic boom and at the inner and outer ends of the displaceable cylinder housing a respective securing and locking unit is attached, which is detachable with recesses of austeleskopierbaren shots and wherein on of the articulation of the locking and locking unit at the inner end the guide arm head is arranged detachably attached to the securing and locking unit, that instead of the guide profile head, an additional guide frame can be mounted, the length of which is dimensioned in coordination with the additional length used in the telescopic boom shots of the telescopic boom and in that a guide profile head can be attached to the free end of the guide frame.
  • the guide profile head dismantled on the securing and locking unit can also be fastened to the guide frame. But it is also possible to arrange the guide profile head fixed to the guide frame, so that then both form a mountable or removable unit.
  • the solution according to the invention affords a number of advantages, primarily the saving of main boom shots, since an extension to a 100 m boom or correspondingly a regression to a 50 m boom can be achieved with simple means.
  • variable maximum Teleskopiermbo can be achieved with less material use.
  • a variable basic unit consisting of a configuration with, for example, a 50 m basic boom as the basic crane can be used at any time.
  • the 50 m base crane becomes a crane with a 100 m main boom length.
  • other lengths are possible, since it is provided that the guide frame is tunable in its length to the extension of the boom by the additionally inserted shots.
  • Figures 1 and 2 respectively the innermost box or shot of the telescopic boom is shown with the SVE arranged therein.
  • This guide frame 6 can be adapted to the boom length, that is tuned to the made extension.
  • the guide profile head 7 is detachably connected to the guide frame 5 and is detached from the guide frame 5 during the conversion of 50 m main boom to the 100 m main boom and replaced by the guide frame 6.
  • the SVE's do not necessarily end up anymore the piston-cylinder unit are positioned, but whose arrangement is more or less freely selectable in the base box.
  • One or more SVE's are independently controllable, so that so that the previous rigid telescoping system has become flexible.
  • This guide profile head can be the guide profile head 7 previously dismantled from the guide frame 5, or another guide profile head 7 forms a unit with the guide frame 6, which unit is then used during the extension.

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

Abstract

A crane having a telescoping boom whose sections, are arranged in a base boom that can telescope individually, in and out, after disengaging locking pin connections that are secured in the respective moved out or moved in positions by locking pins. A guide profile head is arranged at an end remote of the articulation of the safety locking unit to the inner end of the base boom. To lengthen the boom without substantially changing the telescopic system itself, the guide profile head is detachably fastened to the safety locking unit. An additional guide frame, whose length is dimensioned corresponding to the length of the telescoping boom that has been expanded by additional sections inserted in the telescoping boom, is mounted in place of the guide profile head, and that a guide profile head can be arranged at the free end of the guide frame.

Description

Die Erfindung betrifft einen Kran mit einem Teleskopausleger, dessen in einem Grundausleger angeordnete, einzeln austeleskopierbaren Schüsse nach dem Lösen von arretierenden Bolzenverbindungen mit einer hydraulischen Kolben-Zylinder-Einheit aus - und einfahrbar sind und in den jeweils aus - oder eingefahrenen Stellungen durch Verriegelbolzen verbolzt sind, wobei die Kolbenstange der Kolben-Zylinder-Einheit mit ihrem hinteren Ende am inneren Ende des Grundauslegers angelenkt ist und am inneren und äußeren Ende des verschiebbaren Zylindergehäuses je eine Sicherungs- und Verriegelungseinheit befestigt ist, die mit Ausnehmungen der austeleskopierbaren Schüsse kuppelbar ist und wobei am von der Anlenkung der Sicherungs- und Verriegelungseinheit am inneren Ende des Grundauslegers abgewandten Ende ein Führungsprofilkopf angeordnet ist.The invention relates to a crane with a telescopic boom, which are arranged in a basic boom, individually austeleskopierbaren shots after releasing locking bolt connections with a hydraulic piston-cylinder unit and retractable and are bolted in each out - or retracted positions by locking bolts , wherein the piston rod of the piston-cylinder unit is articulated with its rear end at the inner end of the basic boom and at the inner and outer ends of the displaceable cylinder housing per a securing and locking unit is attached, which is detachable with recesses of austeleskopierbaren shots and on the from the articulation of the locking and locking unit facing away from the inner end of the basic boom end a guide profile head is arranged.

Ein derartiger Kran ist aus der EP 0 984 895 B1 bekannt.Such a crane is out of the EP 0 984 895 B1 known.

In der Praxis sind damit 50 m Hauptausleger realisierbar.In practice, 50 m main boom can therefore be realized.

Mit der DE 10 2006 023 371 A1 ist vorgeschlagen worden, das Kopfstück des letzten Auslegerschusses so auszubilden, dass weitere also zusätzliche Auslegerschüsse durch dieses Kopfstück hindurch einschiebbar sind, so dass beim teleskopieren aller dann vorhandenen Schüsse größere Auslegerlängen erreichbar sind, beispielsweise eine Verdopplung auf 100 m.With the DE 10 2006 023 371 A1 It has been proposed to design the head of the last boom shot so that more so additional boom shots are inserted through this headpiece, so that when telescoping all then existing shots larger jib lengths are achievable, for example, a doubling to 100 m.

Aufgabe der Erfindung ist es, diese Verlängerung des Auslegers ohne wesentliche Änderungen an dem Teleskopiersystem selbst, also im Wesentlichen der Sicherungs- und Verriegelungseinheit (kurz SVE), vornehmen zu können.The object of the invention is to be able to make this extension of the boom without significant changes to the telescoping system itself, so essentially the backup and locking unit (SVE short).

Gelöst wird diese Aufgabe erfindungsgemäß bei einem Kran mit einem Teleskopausleger, dessen in einem Grundausleger angeordnete, einzeln austeleskopierbaren Schüsse nach dem Lösen von arretierenden Bolzenverbindungen mit einer hydraulischen Kolben-Zylinder-Einheit aus - und einfahrbar sind und in den jeweils aus - oder eingefahrenen Stellungen durch Verriegelbolzen verbolzt sind, wobei die Kolbenstange der Kolben-Zylinder-Einheit mit ihrem hinteren Ende am inneren Ende des Grundauslegers angelenkt ist und am inneren und äußeren Ende des verschiebbaren Zylindergehäuses je eine Sicherungs- und Verriegelungseinheit befestigt ist, die mit Ausnehmungen der austeleskopierbaren Schüsse kuppelbar ist und wobei am von der Anlenkung der Sicherungs- und Verriegelungseinheit am inneren Ende des Grundauslegers abgewandten Ende ein Führungsprofilkopf angeordnet ist, dadurch, dass der Führungsprofilkopf an der Sicherungs- und Verriegelungseinheit demontierbar befestigt ist,
dass an Stelle des Führungsprofilkopfes ein zusätzlicher Führungsrahmen montierbar ist, dessen Länge in Abstimmung mit der durch zusätzlich in den Teleskopausleger eingesetzte Schüsse erweiterten Länge des Teleskopauslegers bemessen ist und
dass an dem freien Ende des Führungsrahmens ein Führungsprofilkopf anbringbar ist.This object is achieved according to the invention in a crane with a telescopic boom, which are arranged in a basic boom, individually austeleskopierbaren shots after releasing locking bolt connections with a hydraulic piston-cylinder unit and retractable and in each out - or retracted positions by Locking bolts are bolted, with the piston rod of the piston-cylinder unit with is hinged at its rear end at the inner end of the basic boom and at the inner and outer ends of the displaceable cylinder housing a respective securing and locking unit is attached, which is detachable with recesses of austeleskopierbaren shots and wherein on of the articulation of the locking and locking unit at the inner end the guide arm head is arranged detachably attached to the securing and locking unit,
that instead of the guide profile head, an additional guide frame can be mounted, the length of which is dimensioned in coordination with the additional length used in the telescopic boom shots of the telescopic boom and
in that a guide profile head can be attached to the free end of the guide frame.

Vorzugsweise ist der an der Sicherungs- und Verriegelungseinheit demontierte Führungsprofilkopf auch am Führungsrahmen befestigbar. Es ist aber auch möglich, den Führungsprofilkopf am Führungsrahmen fest anzuordnen, so dass dann beide eine montier- bzw. demontierbare Einheit bilden.Preferably, the guide profile head dismantled on the securing and locking unit can also be fastened to the guide frame. But it is also possible to arrange the guide profile head fixed to the guide frame, so that then both form a mountable or removable unit.

Durch die erfindungsgemäße Lösung ergeben sich eine Reihe von Vorteilen, und zwar primär die Einsparung von Hauptauslegerschüssen, da eine Erweiterung auf einen 100 m Ausleger oder entsprechend eine Rückbildung auf einen 50 m Ausleger mit einfachen Mitteln erreichbar ist.The solution according to the invention affords a number of advantages, primarily the saving of main boom shots, since an extension to a 100 m boom or correspondingly a regression to a 50 m boom can be achieved with simple means.

Weiterhin ergeben sich Einsparung von Zylindergewicht der Kolben-Zylinder-Einheit und es sind kleinere Rohrwandstärken möglich, da geringerer Hub erforderlich ist. Damit verbunden ist das Erzielen kleinerer Knicklängen des Zylinders. Somit kann mit weniger Materialeinsatz eine variable maximale Teleskopierlänge erreicht werden. Gegenüber herkömmlichen Kranen mit maximalen Hauptauslegerlängen von beispielsweise100 m kann jederzeit eine variable Grundeinheit, bestehend aus einer Konfiguration mit einem beispielsweise 50 m Grundausleger als Grundkran verwendet werden. Durch das Einstecken einer Zusatzauslegereinheit oder weitere in die Grundeinheit einsteckbare Teleskopschüsse wird der 50 m Grundkran zu einem Kran mit 100 m Hauptauslegermaximallänge.
Natürlich sind auch andere Längen möglich, da vorgesehen ist, dass der Führungsrahmen in seiner Länge abstimmbar ist auf die Verlängerung des Auslegers durch die zusätzlich eingeschobenen Schüsse.Furthermore, there are savings in cylinder weight of the piston-cylinder unit and smaller pipe wall thicknesses are possible because less stroke is required. This is associated with achieving smaller buckling lengths of the cylinder. Thus, a variable maximum Teleskopierlänge can be achieved with less material use. Compared with conventional cranes with maximum boom lengths of, for example, 100 m, a variable basic unit consisting of a configuration with, for example, a 50 m basic boom as the basic crane can be used at any time. By inserting an additional boom unit or other telescopic sections that can be inserted in the basic unit, the 50 m base crane becomes a crane with a 100 m main boom length.
Of course, other lengths are possible, since it is provided that the guide frame is tunable in its length to the extension of the boom by the additionally inserted shots.

Die Erfindung soll nachfolgend mit Bezug auf die Zeichnungen erläutert werden.The invention will be explained below with reference to the drawings.

Dabei zeigt:

  • Abb.1 die schematische Darstellung eines 50 m Hauptauslegers,
  • Abb.2 eine entsprechende Darstellung eines 100 m Hauptauslegers,
  • Abb.3a,b die Anpassung durch einen Führungsrahmen und
  • Abb.4 eine Detaildarstellung der SVE.
Showing:
  • Fig.1 the schematic representation of a 50 m main boom,
  • Fig.2 a corresponding representation of a 100 m main boom,
  • Fig.3a, b the adjustment by a guide frame and
  • Fig.4 a detail of the SVE.

In den Abbildungen sind für gleiche Teile gleiche Bezugszeichen verwendet worden, und zwar

1
Grundkasten
2
teleskopierbare Kästen oder Schüsse für 50 m Hauptausleger
3
Teleskopiereinheit mit Sicherungs- und Verriegelungseinheit
4
zusätzliche Schüsse für 100 m Hauptausleger
5
Führungsrahmen für 50 m Hauptausleger
6
Führungsrahmen für 100 m Hauptausleger
7
Führungsprofilkopf
In the figures, like reference numerals have been used for like parts, namely
1
basic box
2
Telescopic boxes or shots for 50 m main boom
3
Telescoping unit with locking and locking unit
4
additional shots for 100 m main boom
5
Guide frame for 50 m main boom
6
Guide frame for 100 m main boom
7
Guide profile head

In den Abbildungen 1 und 2 ist jeweils der innerste Kasten oder Schuss des Teleskopauslegers dargestellt mit der darin angeordneten SVE.In Figures 1 and 2 respectively the innermost box or shot of the telescopic boom is shown with the SVE arranged therein.

Der Vergleich dieser beiden Abbildungen 1 und 2 zeigt, dass dieses aus der SVE bestehende Teleskopiersystem in beiden Varianten unverändert geblieben ist. Der entsprechende Vergleich in den Abbildungen 3a und 3b zeigt andererseits, dass ein neuer, längerer Führungsrahmen 6 anstelle des am Führungsrahmen vorhandenen Führungsprofilkopfes 7 (Detail in Abb. 4) angesetzt wurde.The comparison of these two figures 1 and 2 shows that this existing from the SVE telescope system has remained unchanged in both variants. On the other hand, the corresponding comparison in FIGS. 3 a and 3 b shows that a new, longer guide frame 6 instead of the guide profile head 7 present on the guide frame (detail in FIG Fig. 4 ) was set.

Dieser-Führungsrahmen 6 kann an die Auslegerlänge angepasst werden, d. h. wird auf die vorgenommene Verlängerung abgestimmt.
Der Führungsprofilkopf 7 ist mit dem Führungsrahmen 5 lösbar verbunden und wird beim Umbau von 50 m Hauptausleger auf den 100 m Hauptausleger von dem Führungsrahmen 5 gelöst und durch den Führungsrahmen 6 ersetzt. Durch die Verwendung nicht nur einer variablen SVE können mannigfaltigste Kombinationen von Grundkasten und Haupauslegerkästen realisiert werden. Die SVE's müssen nicht mehr zwangsweise am Ende der Kolbenzylindereinheit positioniert werden, sondern deren Anordnung ist im Grundkasten mehr oder minder frei wählbar. Eine oder mehrere SVE's sind unabhängig voneinander steuerbar, so dass damit das bisherige starre Teleskopiersystem flexibel geworden ist.This guide frame 6 can be adapted to the boom length, that is tuned to the made extension.
The guide profile head 7 is detachably connected to the guide frame 5 and is detached from the guide frame 5 during the conversion of 50 m main boom to the 100 m main boom and replaced by the guide frame 6. By using not only a variable SVE, the most varied combinations of base box and main boom boxes can be realized. The SVE's do not necessarily end up anymore the piston-cylinder unit are positioned, but whose arrangement is more or less freely selectable in the base box. One or more SVE's are independently controllable, so that so that the previous rigid telescoping system has become flexible.

Nach dem Befestigen des längeren Führungsrahmen 6 wird dieser an seinem freien Ende wieder mit einem Führungprofilkopf 7 komplettiert. Bei diesem Führungsprofilkopf kann es sich um den vorher vom Führungsrahmen 5 demontierten Führungsprofilkopf 7 handeln oder ein anderer Führungsprofilkopf 7 bildet mit dem Führungsrahmen 6 eine Einheit, die dann bei der Verlängerung eingesetzt wird.After attaching the longer guide frame 6 this is completed at its free end again with a guide profile head 7. This guide profile head can be the guide profile head 7 previously dismantled from the guide frame 5, or another guide profile head 7 forms a unit with the guide frame 6, which unit is then used during the extension.

Claims (2)

  1. A crane having a telescopic boom whose individually telescopically extendable sections (2, 4) arranged in a basic boom (1) are extendable and retractable by an hydraulic piston/cylinder unit after the release of arresting bolt connections and are bolted in the extended or retracted positions as the case may be by locking bolts, wherein the rear end of the piston rod of the piston/cylinder unit is articulated on the inner end of the basic boom and a respective securing and locking unit is secured to the inner and outer end of the displaceable cylinder housing and can be coupled to recesses of the telescopicably extendable sections and wherein at the end remote from the articulation of the securing and locking unit to the inner end of the basic boom there is arranged a guiding profiled head (7), characterised in that the guiding profiled head (7) is detachably secured to the securing and locking unit, in that an additional guiding frame (6) is mountable instead of the guiding profiled head (7), the length of which guiding frame (6) is dimensioned in coordination with the telescopic-boom length enlarged by sections (4) additionally inserted into the telescopic boom and in that a guiding profiled head (7) can be attached to the free end of the guiding frame (6).
  2. A crane according to claim 1, characterised in that the guiding profiled head (7) detached at the securing and locking unit can also be secured to the guiding frame (6).
EP08836793A 2007-10-31 2008-10-24 Crane having telescoping boom Active EP2142464B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102007052954A DE102007052954B3 (en) 2007-10-31 2007-10-31 Crane with telescopic boom
PCT/DE2008/001784 WO2009056122A1 (en) 2007-10-31 2008-10-24 Crane having telescoping boom

Publications (2)

Publication Number Publication Date
EP2142464A1 EP2142464A1 (en) 2010-01-13
EP2142464B1 true EP2142464B1 (en) 2011-10-12

Family

ID=40225292

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08836793A Active EP2142464B1 (en) 2007-10-31 2008-10-24 Crane having telescoping boom

Country Status (7)

Country Link
US (1) US8215503B2 (en)
EP (1) EP2142464B1 (en)
JP (1) JP5364099B2 (en)
CN (1) CN101558005B (en)
AT (1) ATE528251T1 (en)
DE (1) DE102007052954B3 (en)
WO (1) WO2009056122A1 (en)

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Publication number Priority date Publication date Assignee Title
DE202008016604U1 (en) * 2008-12-15 2009-03-19 Terex Demag Gmbh telescopic boom
DE202010014105U1 (en) * 2010-10-08 2012-01-10 Liebherr-Werk Ehingen Gmbh Boom element, telescopic boom, bolt system and construction vehicle
EP2465809B1 (en) * 2010-12-17 2014-02-12 Manitowoc Crane Group France SAS Telescopic system for crane boom and jib
CN103086284B (en) * 2013-02-27 2014-04-16 愚公机械股份有限公司 Self-steering telescopic arm device
DE102013011173B4 (en) * 2013-07-04 2019-05-23 Liebherr-Werk Ehingen Gmbh Method for assembling a crane as well as articulation, telescopic boom and crane
JP2022084003A (en) 2020-11-25 2022-06-06 タダノ デマグ ゲーエムベーハー Telescopic jib system of mobile crane with basic telescopic jib and additional telescopic jib and corresponding method

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US3841494A (en) * 1968-12-04 1974-10-15 Fmc Corp Sequenced crane boom
US3921819A (en) * 1974-07-26 1975-11-25 Kidde & Co Walter Boom latch mechanism
US4394108A (en) * 1977-12-21 1983-07-19 Mid-Continent Aircraft Corporation Front loader vehicle with telescoping boom
US4327533A (en) * 1980-08-13 1982-05-04 Kidde, Inc. Crane boom extending, retracting and cooperative latching arrangement
US4634337A (en) * 1985-01-10 1987-01-06 Dover Corporation Integrated wheel lift wrecker
DE9013210U1 (en) * 1990-09-18 1991-01-03 Liebherr-Werk Ehingen Gmbh, 7930 Ehingen Telescoping system with reduced bending length of the telescoping cylinder
US5695082A (en) 1996-04-08 1997-12-09 Pioneer Engineering Crane having a readily removable outer boom section
DE29824453U1 (en) * 1997-05-28 2001-03-01 Mannesmann Ag Crane with a telescopic boom
US6601719B2 (en) * 2001-09-21 2003-08-05 Link-Belt Construction Equipment Co., L.P., Lllp Locking and latching system for a telescoping boom
DE50306471D1 (en) * 2002-06-05 2007-03-29 Liebherr Werk Ehingen Telescopic boom of a crane
WO2007052339A1 (en) 2005-11-01 2007-05-10 Kato Works Co., Ltd. Boom telescoping device for crane
DE102006023371A1 (en) * 2006-05-16 2007-11-22 Terex-Demag Gmbh & Co. Kg Telescopic crane jib

Also Published As

Publication number Publication date
US20110049077A1 (en) 2011-03-03
JP2011500479A (en) 2011-01-06
WO2009056122A1 (en) 2009-05-07
ATE528251T1 (en) 2011-10-15
CN101558005B (en) 2012-11-07
DE102007052954B3 (en) 2009-07-09
CN101558005A (en) 2009-10-14
JP5364099B2 (en) 2013-12-11
EP2142464A1 (en) 2010-01-13
US8215503B2 (en) 2012-07-10

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