EP0963294B1 - Flexodruckmaschine - Google Patents

Flexodruckmaschine Download PDF

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Publication number
EP0963294B1
EP0963294B1 EP98910787A EP98910787A EP0963294B1 EP 0963294 B1 EP0963294 B1 EP 0963294B1 EP 98910787 A EP98910787 A EP 98910787A EP 98910787 A EP98910787 A EP 98910787A EP 0963294 B1 EP0963294 B1 EP 0963294B1
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EP
European Patent Office
Prior art keywords
roll
printing
rotation
strip
termed
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
EP98910787A
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English (en)
French (fr)
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EP0963294A1 (de
Inventor
Bernard Depond
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.)
Saint-Eloi Mecanique Outillage
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Saint-Eloi Mecanique Outillage
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Publication of EP0963294A1 publication Critical patent/EP0963294A1/de
Application granted granted Critical
Publication of EP0963294B1 publication Critical patent/EP0963294B1/de
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F13/00—Common details of rotary presses or machines
    • B41F13/02—Conveying or guiding webs through presses or machines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F5/00—Rotary letterpress machines
    • B41F5/24—Rotary letterpress machines for flexographic printing

Definitions

  • the invention is in the field of printing machines, and more particularly machines flexographic printing presses, and its purpose is a machine like that.
  • the printing technique flexographic consists in continuously scrolling a support banded in a succession of groups printing; to each of these, a color respective is printed on the support, by means of a plate supported by a rotary drum and previously inked.
  • the successive inking of the support jointly draw at the end chain a pattern reproduced along the strip.
  • the printing groups each include a plurality of rollers, rotary or mounted freely rotating according to various embodiments, including a plate roller against which the tape is applied by means of a roller presser, and a roller, called “anilox", for inking the plate holder ; training groups meanwhile, called respectively call and voltage, each include at minus a rotary roller, called call roller, against which is compressed the band for his training.
  • Rolls of referrals, called bar feeders are placed at the entrance and at the exit from each workstation, especially for orient the strip from one to the other of these.
  • the rolls of all the printing units are from commonly rotated from at least one common motor, so as to obtain a drive rollers.
  • the anilox are driven together in rotation from a first line of the drive shaft, while the rollers, plate holders and pressers are driven together in rotation from a second line motor shaft.
  • some machines have only one motor shaft line for the joint training of anilox on the one hand, and call rollers, plate holders and pressers on the other hand, declutching means nevertheless making it possible to break the rotational drive of the latter while continues the anilox rotation drive, to maintain the bubbling these into their respective ink tanks.
  • a technician-operator performs settings to each of the printing groups.
  • a first type of adjustment consists in adjust the contact, or key, of the different rollers, and in particular between the anilox and the plate holder for the transfer of ink on the one hand, and between the presser, the strip and the plate holder on the other hand.
  • One difficulty posed lies in that the setting of the inking keys and printing is carried out by moving the rollers towards each other.
  • the training of said rollers is performed for each of the printing groups by through a cascade gable, from the drive pinion of any of the rollers. The operator must therefore take into account the different games between the pinions when adjusting the keys, estimating their effect on the print result.
  • a second type of adjustment is to position the image of each of the printing groups relative to the web, so as to obtain a pattern without offset at the end of the chain between the successively deposited colors.
  • This kind of adjustment is carried out for example using a differential interposed between the motor shaft and the plate holder, so temporarily change the rotational speed of the plate holder in order to "put in phase” the cliché of the group printing being adjusted with the printing obtained to other printing units, until a pattern is obtained flawless.
  • a difficulty posed lies in the fact that the belt tension between the different rollers of the machine is not identical and is difficult to control. In addition, the tension of the belt tends to vary and to pass from one printing group to another, depending band sliding forces on the different rollers without control possible by the operator. Through elsewhere, a slackening of the strip occurs during the reel change and key settings which arise. Finally, the presence of the above-mentioned games between the different sprockets in cascade drive rollers participate in the difficulty of setting the print.
  • the object of the invention is therefore to offer a flexographic printing machine, the structure facilitates key setting and operator print timing, limiting the influence of the above uncertainty factors.
  • the inventive step consisted in break the habits taken in the field, and to replace to the so-called machine call and voltage groups flexographic printing of the above kind, means band training specific to each group printing, like the machine described by "Papier-Kunststoff-Verarbeiter” September 1986, page 60.62, of so that the tension of the tape in each of its own printing groups and does not undergo Inopportune variations due to the passage of the tape in a previous and / or next printing group.
  • the so-called means band drive consist of means applying the tape against at least any of the already existing rollers of the printing unit, which is driven in rotation by transmission members specific to it, i.e. organs of transmission in direct connection to means of transmission motors, in particular so as not to be influenced by speed variations of the plate holder when setting the impression.
  • the so-called motorized roller against which the tape is applied is any one at fewer of the printing group bargers; however, and pursuing their inventive approach, the Applicants propose to use the pressure roller as a drive roller of the band, and to provide the latter with means rotary drive comprising its own positive transmission, i.e. by example from a directly driven transmission gear by a drive shaft connected to the drive shaft line machine rollers, not from a sprocket participating in a cascade pignonnerie at which participate a pinion drive in rotation of the plate holder and / or Anilox, as in the Prior Art.
  • the setting of the so-called printing key, between the strip and the plate holder, by a displacement of one to the other side of the plate or presser do not not under the influence of a combination of gear sets, to take into account only a game specific to the organs of transmission of the movement of a motor member to the presser.
  • a machine flexographic printing includes a plurality of groups printing, such as 2, and call groups and voltage 48 and 50 arranged downstream and upstream of the assembly printing groups 2.
  • Call and voltage groups 48 and 50 include means, such as 78 and 80, called call and tension, to scroll under tension and successively in each of the printing groups 2 a printing medium 8 packaged in a strip.
  • Each printing group includes a set of parallel rollers: a first roller 10, said anilox, is intended for inking a supported plate around a second roller 12, called a plate holder, with a view to inking the support 8; a third roller 14, says presser, is intended to apply the strip 8 against the plate holder 12; finally, a set of at least two fourth rolls 20.18, known as input feeders 20 and outlet 18 for the one placed upstream and the one arranged in downstream of the presser 14, are provided to orient the strip 8 to inside printing group 2 and between two groups printing 2 neighbors.
  • Anilox 10 and any one less of plate holder 12 and presser 14 are movable (respectively arrows 1,3 and 5) with respect to the others for adjusting the contact, or key, between anilox 10 and plate holder 12 on the one hand for taking ink by the plate, and between the presser 14, the support 8 and the plate holder 12 on the other hand for the ink transfer of the photo on the support 8.
  • the anilox 10, the plate holder 12 and the presser 14 are rotated by means of at least a drive shaft line 24 and 26 common to all of the printing units, through a set positive transmission members comprising means 76, so-called phase adjustment, such as differential, allowing temporarily modify the speed of rotation of a plate holder corresponding to operate the print timing.
  • each of the pressers 14 is carried out by means of a cascade gear from the drive members of the corresponding plate holder 12.
  • plate holder 12 and incidentally the presser 14 are rotated from the anilox 10 drive gear.
  • the process inventive of the present invention was to substitute to call and tension groups 48 and 50, which become superfluous in a machine of the invention, means of calling and tension 4,6 and 52 of the band 8 to be printed fitted each of the printing groups 2, so that the band 8 is held in each of printing groups 2 to avoid slipping on the different rollers, and finally that the voltage variations of the strip 8, and therefore of band length, within a group 2 are not passed on to the group print 2 next.
  • These means of appeal and tension 4.6 and 52 include at least a fifth roller 4, says support, movable (arrow 7) towards a roller motorized printing unit 2, said motorized roller being any of the rollers in the roller group comprising the presser 14 and the bar feeders 20,16,18,22, and being rotated by transmission means positive (28.30) specific to it, directly linked to engine transmission means so as not to undergo the influence of a speed variation of the plate holder 12 during printing stalling.
  • said support roller 4 is, in the usual way in the field, consisting of a roller coated with a flexible material, especially rubber.
  • Means for moving the roller support 4 include a carriage 52, said first, movable by a power member 6, in particular a cylinder, the pressure exerted by the support roller 4 against the strip 8 towards the said motorized roller 14 or 16 or 18 or 20 or 22, and the stroke of the power member 6 being predetermined.
  • a carriage 52 said first, movable by a power member 6, in particular a cylinder, the pressure exerted by the support roller 4 against the strip 8 towards the said motorized roller 14 or 16 or 18 or 20 or 22, and the stroke of the power member 6 being predetermined.
  • the support roller 4 is incidentally driven in rotation from the transmission members of the presser 14.
  • said motorized roller is constituted by the pressure roller 14, which is driven in rotation by motor means comprising a shaft line drive 24, said first, coupled to organs of positive transmission, 28 and 30 for example, called prime, specific to the presser 14, that is to say transmission 28.30 distinct from those, for example 32,34,36 and 74 or 38,40,42, rotational drive of any one at least the plate holder 12 and the anilox 10, and in particular transmission members 28 and 30 which are not placed under the influence of said phase adjustment means 76 of the plate holder 12.
  • the means of moving the presser 14 preferably include a carriage 54, said second, guided in translation on a frame 56 of the machine, said second carriage 54 supporting at least the presser 14 and the support roller 4 with its means 6,52 for guiding and displacement towards the presser 14, and preferably those of the so-called input and output bargers 16 and 18 placed in the vicinity of the presser 14, directly upstream and downstream of it.
  • the bar feeder input 16, called rectifier, located immediately upstream presser 14 is preferably placed, in the first place between the presser 14 and the output bar feeder 18 arranged immediately downstream of the presser 14, and secondly of so that its surface covered by the strip support 8 is located above the axis of the presser 14, such that so that the surface of the presser 14 covered by the support 8 be optimal.
  • the rectifier 16 is supported by the second carriage 54, together with the presser 14, so that the strip surface 8 covering presser 14 is constant whatever the movements of the second carriage 54, and so whatever the position of the presser 14 relative to to the plate holder 12, in order to avoid a shift in the position of the print media 8 relative to the transfer area ink.
  • everyone's means of mobility plate holders 12 and anilox 10 include a carriage, said respectively third 58 and fourth 60, guided in translation on the frame 56 of the machine.
  • second 54, third 58 and fourth 60 carts are maneuverable in translation by means of a respective power (not shown in the figures), cylinder hydraulic in particular, precise adjustment of the key by additional movement of the carriages 54,58,60 by means of worm gear 82,64 and 66 respectively.
  • the rotary drive means of the plate holder 12 advantageously include positive transmission 32,34,36,74 and 76 for example, said second, comprising said phase adjustment means 76, the first 28.30 and second 32.34.36.74 and 76 organs of transmission being coupled to the first shaft line drive 24, which is equipped with a device 62 clutch / disengage (fig. 2).
  • Means of training in rotation of the anilox 10 preferably include organs positive transmission 38,40,42 for example, said third, coupled to a second line of drive shaft 26 separate from the first 24 rotational drive pressers 14 and plate holders 12.
  • the drives in rotation of the pressers 14 and the plate holders 12 can be jointly disengaged by the device 62, while that continues the rotational drive of the anilox 10.
  • the plate holders 12 are rotated from the second line of drive shaft 26 in drive rotation of anilox 10; we will understand that this form of realization is equivalent to that described and represented, and that it comes under the invention, since the presser 14 is driven by transmission components from a drive line 24 or 26 independently of the other rollers, that is to say so that its rotation drive is not placed under the influence of the training of other rolls, and more particularly anilox 10 and of the plate holder 12, even in the case where this driving line 24 or 26 is common to all of the rollers 10, 12 and possibly 20,16,18,22 of the machine.
  • the third organs of transmission preferably include a flexible member of positive transmission 40 connecting the anilox 10 and the second line of drive shaft 26, in order to avoid shaking during training of the anilox 10, shaking detrimental to the uniform distribution of ink.
  • the bar feeders 20, 16, 18 and 22 are driven in rotation by motor means which are not preferably not under the influence of the so-called phase adjustment means 76, so that the band 8 slips on the bar feeders be negligible to limit band tension variations inside each of the printing units 2.
  • Rotational drive means of each of the bar feeders 20,16,18,22 include for example positive transmission organs, including at least one organ flexible, such as 68, preferably coupled via a pinion 44 and 46 to the first drive shaft line 24 for rotating drive pressers 14 and plate holders 12, to be thereby placed under the control of said means 62 of engagement / disengagement.
  • positive transmission organs including at least one organ flexible, such as 68, preferably coupled via a pinion 44 and 46 to the first drive shaft line 24 for rotating drive pressers 14 and plate holders 12, to be thereby placed under the control of said means 62 of engagement / disengagement.
  • the machine of the invention furthermore comprises at least one control and control, such as 70, of the various driving members 24, 26 and power (displacement cylinders of the various carriages 52,54,58,60), such as 6, of the machine.
  • control panel 70 is placed at the machine outlet to allow the technician operator overall management of the printing units from this desk, as shown in the figure, either, or in addition, the machine has several control desks command 70 respective to each of the printing groups 2.
  • the invention is preferably equipped, at the exit of each printing units 2, usual drying stations, such as 72, of the tape to be printed.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Printing Methods (AREA)
  • Inks, Pencil-Leads, Or Crayons (AREA)
  • Rotary Presses (AREA)
  • Printing Plates And Materials Therefor (AREA)
  • Inking, Control Or Cleaning Of Printing Machines (AREA)

Claims (9)

  1. Flexodruckmaschine umfassend eine Vielzahl von Druckstationen (2) und sogenannte Andrück- und Spannmittel, die dazu dienen, einen bahnförmigen Bedruckstoff (8) unter Spannung nacheinander die einzelnen Druckstationen durchlaufen zu lassen, wobei jede Druckstation (2) einen Satz parallel angeordneter Walzen umfasst, und zwar:
    eine erste Walze (10), auch Aniloxwalze genannt, zum Einfärben einer um eine zweite Walze (12) gelegten Druckform,
    die zweite Walze (12), auch Druckformträger genannt, zum Tragen der Druckform beim Einfärben des Bedruckstoffs (8),
    eine dritte Walze, auch Gegendruckzylinder (14) genannt, der die Bahn (8) gegen den Druckformträger (12) presst,
    für jede Druckstation (2) einen Satz von mindestens zwei vierten Walzen, auch Eingangs- bzw. Ausgangsführungswalzen (20, 16, 18, 22) genannt, wobei die eine für die dem Gegendruckzylinder (14) vorgeschaltete Druckstation und die andere für die nachgeschaltete Druckstation vorgesehen ist, und wobei diese Führungswalzen die Bahn (8) bei ihrem Durchlauf innerhalb der Druckstation (2) und zwischen zwei benachbarten Druckstationen (2) führen,
    wobei die Aniloxwalze (10) und mindestens einer der beiden Zylinder, der Druckformträger und/oder der Gegendruckzylinder, verschieblich gegeneinander angeordnet sind, um den Kontakt, bzw. die Berührung zwischen der Aniloxwalze (10) und dem Druckformträger (12) zur Farbübemahme durch die Druckform einerseits, und zwischen dem Gegendruckzylinder (14) und dem Druckformträger (12) zur Farbübertragung von der Druckform auf die Bahn (8) andererseits einzustellen,
    wobei die Aniloxwalze (10), der Druckformträger (12) und der Gegendruckzylinder (14) durch mindestens einen Wellenstrang (24, 26) über eine Einheit von Übertragungsorganen zur positiven Kraftübertragung rotierend angetrieben werden, wobei diese Übertragungsorgane sogenannte Phasenregelungsmittel (76) umfassen, welche eine vorübergehende Änderung der Drehgeschwindigkeit eines entsprechenden Druckformträgers (12) ermöglichen,
    dadurch gekennzeichnet, dass
    jede Druckstation (2) mit den Mitteln (4, 6, 52) zum Andrücken und Spannen der Druckbahn (8) ausgestattet ist, so dass die Schwankungen in der Spannung der Bahn (8), und somit in ihrer Länge, innerhalb einer Druckstation (2) nicht an die nächste Druckstation (2) weitergegeben werden, wobei die Andrück- und Spannmittel mindestens eine fünfte Walze (4), auch Stützwalze genannt, umfassen, die in Richtung auf eine motorbetriebene Walze der Druckstation (2) verschiebbar ist, wobei die motorbetriebene Walze eine beliebige Walze aus der Walzengruppe umfassend den Gegendruckzylinder (14) und die Führungswalzen (16, 18, 20, 22) ist und durch eigene Mittel zur positiven Kraftübertragung (28, 30), die mit Antriebsmitteln direkt in Eingriff stehen, derart rotierend angetrieben wird, dass sie bei der Druckeinstellung nicht dem Einfluss einer Geschwindigkeitsänderung des Druckformträgers (12) ausgesetzt ist.
  2. Maschine nach Anspruch 1,
    dadurch gekennzeichnet, dass
    die motorbetriebene Walze einer jeden Druckstation (2) aus dem Gegendruckzylinder (14) besteht, der über sogenannte erste Übertragungsorgane zur positiven Kraftübertragung (28, 30) durch einen sogenannten ersten Wellenstrang (24) rotierend angetrieben wird, wobei diese Übertragungsorgane nicht unter dem Einfluss der Phasenregelungsmittel (76) des Druckformträgers stehen.
  3. Maschine nach einem der vorstehenden Ansprüche,
    dadurch gekennzeichnet, dass
    die Führungswalzen (16, 18, 20, 22) durch Antriebsmittel (24, 28, 44, 46, 68) rotierend angetrieben werden, die nicht unter dem Einfluss der Phasenregelungsmittel (76) stehen, so dass das Gleiten der Bahn (8) auf den Führungswalzen (16, 18, 20, 22) vernachlässigbar ist, um die Spannungsschwankungen der Bahn (8) innerhalb der jeweiligen Druckstationen (2) zu begrenzen.
  4. Maschine nach Anspruch 2,
    dadurch gekennzeichnet, dass
    in jeder Druckstation die Mittel zum Verschieben des Gegendruckzylinders (14) einen sogenannten zweiten Transportwagen (54) umfassen, der in Parallelverschiebung auf einem Gestell (56) der Maschine geführt ist, wobei dieser zweite Transportwagen (54) mit seinen Führungs- und Verschiebungsmitteln (6, 52) mindestens den Gegendruckzylinder (14) und die Stützwalze (4) trägt.
  5. Maschine nach Anspruch 2,
    dadurch gekennzeichnet, dass
    in jeder Druckstation die direkt vor dem Gegendruckzylinder (14) angeordnete Eingangsführungswalze (16), auch Geraderichter genannt, erstens zwischen dem Gegendruckzylinder (14) und der direkt hinter dem Gegendruckzylinder (14) angeordneten Ausgangsführungswalze (18) angebracht ist, und zweitens derart angebracht wird, dass sich ihre durch den bahnförmigen Bedruckstoff bedeckte Fläche über der Achse des Gegendruckzylinders (14) befindet,
    so dass die von dem Bedruckstoff (8) bedeckte Fläche des Gegendruckzylinders (14) optimal ist.
  6. Maschine nach den Ansprüchen 4 und 5,
    dadurch gekennzeichnet, dass
    in jeder Druckstation der Geraderichter (16) gemeinsam mit dem Gegendruckzylinder (14) von dem zweiten Transportwagen (54) getragen wird, so dass die den Gegendruckzylinder (14) bedeckende Fläche der Bahn (8) unabhängig von den Verschiebungen des zweiten Transportwagens (54), und somit von der Position des Gegendruckzylinders (14) im Verhältnis zum Druckformträger (12), konstant bleibt.
  7. Maschine nach Anspruch 2,
    dadurch gekennzeichnet, dass
    in jeder Druckstation die Mittel zum rotierenden Antrieb des Druckformträgers (12) sogenannte zweite, die Phasenregelungsmittel (76) umfassenden Übertragungsorgane zur positiven Kraftübertragung (32, 34, 36, 74, 76) umfassen, wobei die ersten (28, 30) und die zweiten (32, 34, 36, 74, 76) Übertragungsorgane mit dem ersten, mit einer Kupplungs- und Auskupplungsvorrichtung (62) ausgestatteten Wellenstrang (24) gekoppelt sind, und
    dass die Mittel zum rotierenden Antrieb der Aniloxwalze (10) sogenannte dritte Übertragungsorgane zur positiven Kraftübertragung (38, 40, 42) umfassen, die an einen zweiten Wellenstrang (26) gekoppelt sind, der sich vom ersten unterscheidet und die Gegendruckzylinder (14) und die Druckformträger (12) rotierend antreibt, so dass die rotierenden Antriebe der Gegendruckzylinder (14) und der Druckformträger (12) gemeinsam ausgekuppelt werden können, während die Aniloxwalzen (10) weiter rotierend angetrieben werden.
  8. Maschine nach Anspruch 7,
    dadurch gekennzeichnet, dass
    die dritten Übertragungsorgane ein flexibles Übertragungsorgan zur positiven Kraftübertragung (40) umfassen, welches die Aniloxwalze mit dem zweiten Wellenstrang (26) verbindet.
  9. Maschine nach den Ansprüchen 3 und 7,
    dadurch gekennzeichnet, dass
    die Mittel zum rotierenden Antrieb der jeweiligen Führungswalzen (16, 18, 20, 22) Übertragungsorgane zur positiven Kraftübertragung umfassen, von denen mindestens ein Organ ein flexibles Organ (68) ist, und die mit dem ersten, zum rotierenden Antrieb des Druckformträgers (12) und des Gegendruckzylinders (14) vorgesehenen Wellenstrang (24) gekoppelt sind.
EP98910787A 1997-02-18 1998-02-18 Flexodruckmaschine Expired - Lifetime EP0963294B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR9702570A FR2759629B1 (fr) 1997-02-18 1997-02-18 Machine d'impression flexographique
FR9702570 1997-02-18
PCT/FR1998/000309 WO1998036909A1 (fr) 1997-02-18 1998-02-18 Machine d'impression flexographique

Publications (2)

Publication Number Publication Date
EP0963294A1 EP0963294A1 (de) 1999-12-15
EP0963294B1 true EP0963294B1 (de) 2002-05-22

Family

ID=9504404

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98910787A Expired - Lifetime EP0963294B1 (de) 1997-02-18 1998-02-18 Flexodruckmaschine

Country Status (8)

Country Link
EP (1) EP0963294B1 (de)
AT (1) ATE217837T1 (de)
AU (1) AU6504098A (de)
DE (1) DE69805512T2 (de)
ES (1) ES2178178T3 (de)
FR (1) FR2759629B1 (de)
PT (1) PT963294E (de)
WO (1) WO1998036909A1 (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007028327A1 (de) * 2007-06-15 2008-12-18 Flexicon Ag Druckanlage sowie Verfahren zum Bedrucken von Druckträgern
DE102007045876A1 (de) 2007-09-25 2009-04-09 Gallus Druckmaschinen Gmbh Druckwerk und Druckmaschine

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1810532A1 (de) * 1968-11-23 1970-07-09 Hueck & Co Flexodruckmaschine zum Nachdrucken von bandfoermigem Material
DE3344131C2 (de) * 1983-12-07 1995-04-20 Metronic Geraetebau Flexodruckwerk für den Verpackungsdruck
DE3825652A1 (de) * 1988-07-28 1990-02-01 Bhs Bayerische Berg Flexodruckmaschine
FR2705612A1 (fr) * 1993-03-09 1994-12-02 Depond Bernard Groupe d'impression pour machine flexographique.

Also Published As

Publication number Publication date
WO1998036909A1 (fr) 1998-08-27
ES2178178T3 (es) 2002-12-16
ATE217837T1 (de) 2002-06-15
FR2759629B1 (fr) 1999-06-04
PT963294E (pt) 2002-10-31
AU6504098A (en) 1998-09-09
EP0963294A1 (de) 1999-12-15
FR2759629A1 (fr) 1998-08-21
DE69805512T2 (de) 2003-01-09
DE69805512D1 (de) 2002-06-27

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