EP1688251B1 - Unité d'impression d'une machine à imprimer - Google Patents

Unité d'impression d'une machine à imprimer Download PDF

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Publication number
EP1688251B1
EP1688251B1 EP05111440A EP05111440A EP1688251B1 EP 1688251 B1 EP1688251 B1 EP 1688251B1 EP 05111440 A EP05111440 A EP 05111440A EP 05111440 A EP05111440 A EP 05111440A EP 1688251 B1 EP1688251 B1 EP 1688251B1
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EP
European Patent Office
Prior art keywords
cylinder
printing unit
unit according
transfer cylinder
transfer
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.)
Not-in-force
Application number
EP05111440A
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German (de)
English (en)
Other versions
EP1688251A2 (fr
EP1688251A3 (fr
Inventor
Oliver Hahn
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.)
Koenig and Bauer AG
Original Assignee
Koenig and Bauer AG
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Filing date
Publication date
Application filed by Koenig and Bauer AG filed Critical Koenig and Bauer AG
Publication of EP1688251A2 publication Critical patent/EP1688251A2/fr
Publication of EP1688251A3 publication Critical patent/EP1688251A3/fr
Application granted granted Critical
Publication of EP1688251B1 publication Critical patent/EP1688251B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41FPRINTING MACHINES OR PRESSES
    • B41F7/00Rotary lithographic machines
    • B41F7/02Rotary lithographic machines for offset printing
    • B41F7/04Rotary lithographic machines for offset printing using printing units incorporating one forme cylinder, one transfer cylinder, and one impression cylinder, e.g. for printing on webs
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41FPRINTING MACHINES OR PRESSES
    • B41F30/00Devices for attaching coverings or make-ready devices; Guiding devices for coverings
    • B41F30/04Devices for attaching coverings or make-ready devices; Guiding devices for coverings attaching to transfer cylinders
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41FPRINTING MACHINES OR PRESSES
    • B41F7/00Rotary lithographic machines
    • B41F7/02Rotary lithographic machines for offset printing
    • B41F7/12Rotary lithographic machines for offset printing using two cylinders one of which serves two functions, e.g. as a transfer and impression cylinder in perfecting machines

Definitions

  • the invention relates to a printing unit of a printing press according to the preamble of claim 1.
  • From the EP 01 82 156 A2 is an offset printing machine with at least one blanket cylinder and at least one plate cylinder known, which unwinds several times, in particular twice on one revolution of the blanket cylinder.
  • a longitudinally extending recess is provided on the blanket cylinder opposite the clamping channel, which may be formed in the blanket.
  • a printing unit of a printing press is known with a cylinder pair of cylinders whose circumference corresponds in each case substantially to a length of a section length of a printed page.
  • the effective lateral surface of at least one of the cylinders has at most one interruption or a channel, but viewed in the longitudinal direction, a plurality of juxtaposed interruptions or channels, which are arranged offset from one another in the circumferential direction. Since the elevators on the cylinders are not held in channels extending along the length of the cylinder but in circumferentially offset channels, a channel impact is greatly reduced in the passage of the channel during the unwinding of two cooperating cylinders. As a result, a particularly low-vibration, compact printing unit is created.
  • a transfer cylinder of a rotary printing machine is known with at least two in the circumferential direction of the transfer cylinder successively arranged channels for receiving one or more blankets, wherein at least one of the channels of the transfer cylinder is at least partially covered by a blanket.
  • a printing unit of a rotary printing machine with a transfer cylinder and a forme cylinder wherein the transfer cylinder has a channel for receiving one or more blankets and the forme cylinder at least two seen in the circumferential direction successively arranged channels for receiving one or more printing plates. At least one of the channels of the forme cylinder is at least partially covered by a printing plate and the at least partially covered channel rolls off in the region of a channel of the cooperating transfer cylinder.
  • the use of metal blankets is subject to the following limitations: For circumferences of cylinders smaller than 1,000 mm, a maximum width of 1,600 to 2,120 mm depending on the manufacturer is available. When the cylinders are larger than 1,000 mm, a maximum width of 1,600 mm is available. When the cylinders are larger than 1,200 mm, a maximum width of 1,200 mm is available.
  • the DE 198 03 809 A1 discloses a newsprint printing machine having a form cylinder having four printing plates in the axial direction and an associated transfer cylinder having a single blanket in the circumferential direction and two metal blankets in the axial direction, wherein the one circumference of the transfer cylinder is an integer multiple of the circumference of the forme cylinder.
  • the invention has for its object to provide a printing unit of a printing press for large printing substrate widths with reduced bending vibrations.
  • the cooperating with the transfer cylinder form cylinder and the corresponding printing form must not be changed, in particular, the forme cylinder may continue to have a continuous channel.
  • the axes of the forme cylinder, the transfer cylinder and the impression cylinder of the printing unit or, in the case of a double printing unit, the axes of the two forme cylinder and the two transfer cylinders are in a plane, which in connection with the pairwise By 180 ° offset wells a vibration reduction can be achieved by destructive interference.
  • three-cylinder offset printing that particular job printing is formed comprises a cylinder 01, z. B. forme cylinder 01, a cooperating with this cylinder 02, z. B. transfer cylinder 02 and one cooperating with the transfer cylinder 02, with this a printing gap for a web-shaped substrate 04, z. B. printing material 04 forming cylinder 03, z. B. impression cylinder 03.
  • the circumference of each cylinder 01; 02; 03 is equal to two or a multiple of two pages to be printed and may be greater than 1,200 mm.
  • impression cylinder 03 instead of the impression cylinder 03, another, not shown transfer cylinder could be provided which cooperates with another form cylinder, not shown, so as to form a double printing for double-sided printing of the substrate 04.
  • the transfer cylinder 02 is connected to one or more elevators 05, z. B. one or more blankets 05, in particular one or more blankets 05 assignable and the forme cylinder 01 is with elevators 06, in particular printing plates 06, here two printing plates 06, in particular printing plates 06, assignable.
  • the cylinders are 01; 02; 03 different width (ie long) running.
  • the cylinders 01; 02; 03 be simply wide, double wide or triple wide.
  • the respective circumference of the forme cylinder 01, the transfer cylinder 02 and the impression cylinder 03 is, as mentioned above, in each case double, based on the respective format, but could also be formed, for example, quadruple or sixfold.
  • the forme cylinder 01 could also have a simple circumference instead of the double circumference.
  • the forme cylinder 01 has a single pressure plate 06 in its axial direction. In the circumferential direction of the forme cylinder 01, a pressure plate 06 or a plurality, preferably two pressure plates 06 may be arranged.
  • the transfer cylinder 02 has at least one blanket 05, preferably two blankets 05.
  • the blankets 05 may be arranged so that at least two or three and / or at least two blankets 05 are arranged in the circumferential direction in the axial direction.
  • the forme cylinder 01 has two channels 07 extending in the longitudinal direction and spaced apart by 180 ° in the circumferential direction. 08, z. B. depressions 07; 08 for receiving the ends of the printing plates 06.
  • the transfer cylinder 02 has a substantially over the entire length of the transfer cylinder 02 extending channel 09, z. B. recess 09 for receiving the ends of the blanket 05 on. The end of such a blanket 05 is at a transfer cylinders 02 in the recess 09 by a fastening system, for. B. held a clamping and / or clamping device known per se.
  • the depth of the recess 10 provided in the elevator 05 corresponds at least to the static pressing of the elevator 05 in the pressure nip.
  • the channels 07; 08 of the forme cylinder 01 on the one hand and the channel 09 of the transfer cylinder 02 and the groove 10 in the blanket 05 on the other hand are so on the two cylinders 01; 02 arranged to rotate upon rotation of the two cylinders 01; 02 each on one of the channels 07; 08 or 09 or the groove 10 roll.
  • the offset of the channels 07 and 08 on the one hand and the channel 09 and the groove 10 on the other hand in each case is 180 °
  • Fig. 1 recognizable are the axes of rotation of the three cooperating Cylinder 01; 02; 03 at least during the print-on position shown here on a common straight line, in particular in a common plane E, and parallel to each other. If the third cylinder 03 represents a further transfer cylinder and a further form cylinder cooperating with this further transfer cylinder is provided to form a double printing unit, the axis of rotation of this further forme cylinder lies in the plane E and parallel to the other axes of rotation.
  • At least the transfer cylinder 02 is movable in a manner not shown, for example, along a linear travel from the on position shown in an off-position not shown.
  • the angle ⁇ which the web of the printing stock 04 occupies with the plane E, is not equal to 90 °.
  • the choice of the angle ⁇ takes into account the rapid and secure release of the printing stock 04 and, on the other hand, minimizes negative influences on the printing result, which is decisively influenced by the extent of a partial looping of the transfer cylinder 02 or of the cylinder 03.
  • the angle ⁇ is between 70 ° and 85 °.
  • the illustrated here for example double printing unit for offset printing comprises a first cylinder 11, z. B. form cylinder 11, a cooperating with this first cylinder 12, z. B. transfer cylinder 12, a cooperating with this and a printing gap for the web-shaped substrate 04 forming second cylinder 13, z. B. transfer cylinder 13, z. B. impression cylinder 13 and a cooperating with this second cylinder 14, z. B. forme cylinder 14.
  • the circumference of each of the cylinders 11; 12; 13; 14 corresponds to two or a multiple of two sides to be printed, and is preferably larger than 1,000 mm.
  • cylinder pair 13; 14 which represents one of the two printing units of the illustrated double printing unit, can in principle also be a single cylinder acting as a counter-pressure cylinder, cf. Fig. 1 ,
  • the cylinder 11; 12; 13; 14 may be formed repeatedly wide. Furthermore, in the case of this embodiment, the rotation axes of all cylinders 11; 12; 13; 14 preferably arranged in a single plane E and parallel to each other. Also, in turn, the angle ⁇ occupied by the web of the printing substrate 04 with the plane E, not equal to 90 °, preferably between 70 ° and 85 °, and with regard to all these details will be to the description in connection with the first embodiment according to Fig. 1 and 2 directed.
  • a blanket 05 is provided, in the case of this embodiment, as elevators 15, z. B. blanket 15 for the transfer cylinder 12; 13 so-called metal blankets 15 per se known construction use, which have on a metallic base plate a druckticianesortde coating.
  • the folded ends of such metal blankets 15 are in the transfer cylinders 12; 13 in recesses 19; 20, z. B. channels 19; 20, by fastening systems, for. B. clamping and / or clamping devices held in a known manner.
  • the folded ends of the printing plates 06; 16 are by fastening systems, for. B.
  • the channels 17; 18; 19; 20 are formed comparatively narrow and in such a narrow channel 17; 18; 19; 20 with leading edge a leading end of the respective elevator 15; 16 is used, the respective elevator 15; 16 on the cylinder 11; 12; 13 and 14 is wound, the trailing end also in the channel 17; 18; 19 and 20 is inserted and the ends against slipping z.
  • B. be clamped by means of a rotatable spindle or a pneumatic device.
  • the elevator 16 on the forme cylinder 11; 14 can also be used both for the elevator 16 on the forme cylinder 11; 14 as well as for the elevator 15 on the transfer cylinder 12; 13 as a narrow slot 17; 18; 19; 20 executed channel 17; 18; 19; 20 be provided without clamping action, which the ends of the elevators 15; 16 takes up.
  • the ends are in this case, for example, by their shape and / or the geometry of the slot in the slot 17; 18; 19; 20 held.
  • the channels 17; 18; 19; 20 are so on the associated cylinders 11; 12; Arranged 13 and 14 and in pairs offset by 180 ° and the cylinder 11; 12; 13; 14 roll off each other so that the channels 17; 18; 19; 20 adjacent cylinders 11, 12; 12, 13; 13, 14 roll each other in the respective gap.
  • the destructive interference is additionally exploited in order to achieve a further reduction of the oscillation amplitudes.
  • the oscillatory movements of the cylinder 12; 13 can be pressed even under those with the use of sleeves, as in sleeve machines, the vibration excitation through the channel of the forme cylinder can not be reduced by interference.
  • the two depressions 09; 10; 19; 20 at least one pair of transfer cylinders 02; 12; 13 have substantially the same dimensions, measured in the plane of the surface of the transfer cylinder 02; 12; 13th
  • the two depressions 09; 10; 19; 20 of each pair of transfer cylinders 02; 12; 13 have the substantially same dimensions, measured in the plane of the surface of the transfer cylinder 02; 12; 13th
  • a non-illustrated Fatlege Gar may additionally be provided, which may be designed as automatic or semi-automatic Text Vietnamese.
  • the transfer cylinder 12; 13 has a circumference of less than 1,000 mm, instead of two successively arranged metal blankets 15, a single metal blanket 15 of appropriate length can be used. This then has corresponding to the blanket 05 of the first embodiment, a parallel to its leading edge or trailing edge extending, approximately centrally between the two edges extending recess 10, which in on the transfer cylinder 12; 13 mounted metal blanket the (then single) channel offset by 180 ° opposite and whose width corresponds to the effective width of this channel.
  • the invention can be realized accordingly by correspondingly many recesses are provided, which may be formed depending on the conditions of channels in the cylinders or additional recesses in the blankets, but always the surface of the Transfer cylinder with an even number of pairs offset by 180 ° wells such as channels in the bale, grooves in the elevator o. The like. Is equipped.
  • the invention thus provides a printing unit which, in order to avoid oscillation marks on the printing material, makes possible a reduction in vibration by destructive interference and at the same time fulfills the demand for a paper web to be printed centrally with a reduced web width. This is particularly the case for commercial presses with four A4 pages in the circumference (or two DIN A4-page presses in the periphery, which do not require DIN A3 production), but also for double-circumference newspaper presses in the American market, with which, for , As flyers are to be printed, of considerable importance.
  • the printing unit can be arranged downstream of a dryer.
  • the recess may be arranged in the blanket or in the bale of the cylinder, wherein the name in the bale also includes a recess in the possibly arranged between the blanket and bales documents.
  • bale width is to be understood as meaning at least 90% of the bale width and / or the entire bale width of the cylinder and / or the entire bale width minus possibly existing bearer rings.
  • substantially the same extent is meant a deviation of at most 10% of the two circumferences of the cylinders of the same circumference.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Printing Plates And Materials Therefor (AREA)
  • Rotary Presses (AREA)
  • Printing Methods (AREA)
  • Printers Or Recording Devices Using Electromagnetic And Radiation Means (AREA)
  • Manufacturing Of Printed Wiring (AREA)
  • Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)

Claims (19)

  1. Groupe d'impression d'une machine à imprimer comprenant au moins un cylindre de forme (01 ; 11 ; 14) et un cylindre de transfert (02 ; 12 ; 13), ainsi qu'au moins un cylindre de contre-pression (03 ; 13), le cylindre de transfert (02 ; 12 ; 13) et le cylindre de forme (01 ; 11 ; 14) présentant une circonférence sensiblement identique, au moins un habillage (05 ; 15) étant fixé sur le corps du cylindre de transfert (02 ; 12 ; 13), le au moins un habillage (05 ; 15) s'étendant sensiblement sur toute la largeur de corps du cylindre de transfert (02 ; 12 ; 13), le cylindre de forme (01 ; 11 ; 14) présentant, dans sa direction axiale, une plaque d'impression (06) s'étendant sensiblement sur toute la largeur de corps du cylindre de forme (01 ; 11 ; 14), un nombre pair de cavités (09 ; 10 ; 19 ; 20), s'étendant dans la direction longitudinale du cylindre de transfert (02 ; 12 ; 13), décalées chaque fois par paires de 180°, étant prévues sur la surface du cylindre de transfert (02 ; 12 ; 13), au moins l'une des cavités (09 ; 10 ; 19 ; 20) s'étendant sensiblement sur toute la largeur de corps du cylindre de transfert (02 ; 12 ; 13), le cylindre de forme (01 ; 11 ; 14), appliqué sur le cylindre de transfert (02 ; 12 ; 13), et un cylindre de contre-pression (03 ; 13), s'appliquant également sur le cylindre de transfert (02 ; 12 ; 13), formant avec celui-ci un intervalle d'impression, étant disposés, l'habillage (05 ; 15) comprenant une plaque support à forme stable, et au moins l'une des cavités (19 ; 20) étant réalisée sous forme de déformation dans la plaque support à forme stable de l'habillage (15).
  2. Groupe d'impression selon la revendication 1, caractérisé en ce que toutes les cavités (09 ; 10 ; 19 ; 20) s'étendent sensiblement sur toute la largeur de corps du cylindre de transfert (02 ; 12 ; 13).
  3. Groupe d'impression selon l'une des revendications précédentes, caractérisé en ce que les deux cavités (09 ; 10 ; 19 ; 20) d'au moins une paire de cylindres de transfert (02 ; 12 ; 13) présentent des dimensions sensiblement identiques, mesurées dans le plan de la surface du cylindre de transfert (02 ; 12 ; 13).
  4. Groupe d'impression selon la revendication 3, caractérisé en ce que les deux cavités (09 ; 10 ; 19 ; 20) de chaque paire de cylindres de transfert (02 ; 12 ; 13), présentent des dimensions sensiblement identiques, mesurées dans le plan de la surface du cylindre de transfert (02 ; 12 ; 13).
  5. Groupe d'impression selon l'une des revendications précédentes, caractérisé en ce que la circonférence de la surface du cylindre de transfert (02 ; 12 ; 13) correspond à un multiple, par un nombre entier, de quatre pages DIN-A4.
  6. Groupe d'impression selon l'une des revendications précédentes, caractérisé en ce que le au moins un habillage (05 ; 15) comprend au moins un blanchet (05 ; 15).
  7. Groupe d'impression selon la revendication 6, caractérisé en ce que le blanchet (05 ; 15) est un blanchet en caoutchouc (05).
  8. Groupe d'impression selon la revendication 7, caractérisé en ce que la cavité (10) est formée dans la surface du blanchet (05), par creusement du caoutchoutage dans cette zone.
  9. Groupe d'impression selon la revendication 6, caractérisé en ce que le blanchet (15) est réalisé sous forme de blanchet métallique (15), comprenant une plaque support à forme stable avec au moins une couche élastique, réalisée au-dessus d'elle.
  10. Groupe d'impression selon la revendication 1, caractérisé en ce que la circonférence de la surface du cylindre de transfert (02 ; 12 ; 13) correspond à un nombre pair de pages à imprimer.
  11. Groupe d'impression selon la revendication 1, caractérisé en ce que le cylindre de contre-pression (13) est formé par une autre cylindre de transfert (13).
  12. Groupe d'impression selon la revendication 1, caractérisé en ce que les axes de rotation du cylindre de forme (01 ; 11 ; 14), du cylindre de transfert (02 ; 12 ; 13) et du cylindre de contre-pression (03 ; 13) sont disposés sur une droite.
  13. Groupe d'impression selon la revendication 11, caractérisé en ce qu'un autre cylindre de forme (14) est appliqué sur l'autre cylindre de transfert (13), les axes de rotation de ces quatre cylindres (11 ; 12 ; 13 ; 14) étant disposés sur une droite commune.
  14. Groupe d'impression selon l'une des revendications 12 et 13, caractérisé en ce que la droite, en particulier le plan (E) des axes de rotation des cylindres, s'étend sous une inclinaison de la valeur d'un angle (α) différent de 90° par rapport au plan d'une bande de matériau à imprimer (04) traversant le groupe d'impression.
  15. Groupe d'impression selon la revendication 14, caractérisé en ce que l'angle (α) est compris dans la fourchette entre 70 et 85°.
  16. Groupe d'impression selon la revendication 1, caractérisé en ce que deux plaques d'impression (06 ; 16) sont disposées dans la direction périphérique du cylindre de forme (01 ; 11 ; 14).
  17. Groupe d'impression selon la revendication 1, caractérisé en ce qu'une plaque d'impression (06 ; 16) unique est disposée dans la direction périphérique du cylindre de forme (01 ; 11 ; 14).
  18. Groupe d'impression selon la revendication 1, caractérisé en ce qu'au moins deux habillages (05 ; 15) sont disposés l'un à côté de l'autre dans la direction axiale du cylindre de transfert (02 ; 12 ; 13).
  19. Groupe d'impression selon la revendication 18, caractérisé en ce que chacun des habillages (05 ; 15) disposés les un à côté des autres présente en direction périphérique une cavité (09 ; 10 ; 19 ; 20) à l'état appliqué, en ce que chacun des habillages (05 ; 15) disposés les un à côté des autres s'étend sur à peu près la circonférence complète du cylindre de transfert (02 ; 12 ; 13).
EP05111440A 2005-02-04 2005-11-29 Unité d'impression d'une machine à imprimer Not-in-force EP1688251B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102005005302A DE102005005302A1 (de) 2005-02-04 2005-02-04 Druckwerk einer Druckmaschine

Publications (3)

Publication Number Publication Date
EP1688251A2 EP1688251A2 (fr) 2006-08-09
EP1688251A3 EP1688251A3 (fr) 2010-03-03
EP1688251B1 true EP1688251B1 (fr) 2010-11-10

Family

ID=36481383

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05111440A Not-in-force EP1688251B1 (fr) 2005-02-04 2005-11-29 Unité d'impression d'une machine à imprimer

Country Status (3)

Country Link
EP (1) EP1688251B1 (fr)
AT (1) ATE487596T1 (fr)
DE (2) DE102005005302A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006044979A1 (de) * 2006-09-23 2008-04-10 Man Roland Druckmaschinen Ag Druckwerk einer Druckmaschine
DE102007002495B4 (de) * 2007-01-17 2008-12-18 Koenig & Bauer Aktiengesellschaft Rollenrotationsdruckmaschine zum zweiseitigen Bedrucken einer Bedruckstoffbahn
ES2380406T3 (es) 2008-05-28 2012-05-11 Koenig & Bauer Ag Prensa offset con papel continuo así como procedimiento para el funcionamiento de la prensa offset con papel contínuo
DE102013107995A1 (de) * 2013-07-26 2015-01-29 Manroland Web Systems Gmbh Druckwerk und Kontaktstruktur für ein Druckwerk

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3441175A1 (de) * 1984-11-10 1986-05-22 Albert-Frankenthal Ag, 6710 Frankenthal Offsetdruckmaschine
DE19803809A1 (de) * 1998-01-31 1999-08-05 Roland Man Druckmasch Offsetdruckwerk
DK1454745T3 (da) * 1999-12-02 2009-01-05 Koenig & Bauer Ag Trykværk i en rotationstrykkemaskine
EP1375138A3 (fr) * 2001-04-09 2007-06-20 Koenig & Bauer Aktiengesellschaft Groupe d'impression d'une machine d'imprimerie et procédé de réalisation d'un produit imprimé
DE50210007D1 (de) * 2001-11-22 2007-05-31 Koenig & Bauer Ag Verfahren zum Betrieb eines Druckwerkes
JP2003159777A (ja) * 2001-11-27 2003-06-03 Tokyo Kikai Seisakusho Ltd 版胴及びこの版胴の刷版装着装置

Also Published As

Publication number Publication date
EP1688251A2 (fr) 2006-08-09
EP1688251A3 (fr) 2010-03-03
ATE487596T1 (de) 2010-11-15
DE102005005302A1 (de) 2006-08-10
DE502005010508D1 (de) 2010-12-23

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