EP0976509A2 - Verfahren und Vorrichtung zum Längsschneiden einer Materialbahn - Google Patents
Verfahren und Vorrichtung zum Längsschneiden einer Materialbahn Download PDFInfo
- Publication number
- EP0976509A2 EP0976509A2 EP99112151A EP99112151A EP0976509A2 EP 0976509 A2 EP0976509 A2 EP 0976509A2 EP 99112151 A EP99112151 A EP 99112151A EP 99112151 A EP99112151 A EP 99112151A EP 0976509 A2 EP0976509 A2 EP 0976509A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- cutting edge
- carrier
- machine frame
- determined
- distance
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
- B26D7/26—Means for mounting or adjusting the cutting member; Means for adjusting the stroke of the cutting member
- B26D7/2628—Means for adjusting the position of the cutting member
- B26D7/2635—Means for adjusting the position of the cutting member for circular cutters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B26—HAND CUTTING TOOLS; CUTTING; SEVERING
- B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
- B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
- B26D7/26—Means for mounting or adjusting the cutting member; Means for adjusting the stroke of the cutting member
- B26D2007/2657—Auxiliary carriages for moving the tool holders
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T83/00—Cutting
- Y10T83/768—Rotatable disc tool pair or tool and carrier
- Y10T83/7809—Tool pair comprises rotatable tools
- Y10T83/7822—Tool pair axially shiftable
- Y10T83/7826—With shifting mechanism for at least one element of tool pair
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T83/00—Cutting
- Y10T83/768—Rotatable disc tool pair or tool and carrier
- Y10T83/7809—Tool pair comprises rotatable tools
- Y10T83/7847—Tool element axially shiftable
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T83/00—Cutting
- Y10T83/869—Means to drive or to guide tool
- Y10T83/8821—With simple rectilinear reciprocating motion only
- Y10T83/8822—Edge-to-edge of sheet or web [e.g., traveling cutter]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T83/00—Cutting
- Y10T83/929—Tool or tool with support
- Y10T83/9457—Joint or connection
- Y10T83/9464—For rotary tool
- Y10T83/9469—Adjustable
- Y10T83/9471—Rectilinearly
Definitions
- the invention relates to a method for slitting a material web running in the direction of travel, in which at least one knife unit on a carrier in one Machine frame moved transversely to the direction of travel and the position of your cutting edge in the machine frame becomes.
- the invention further relates to a device for longitudinal cutting of a machine running in the running direction Material web with at least one knife unit, which has a cutting edge and arranged on a carrier is in a machine frame across the Running direction is displaceable, and with a measuring device to determine the position of the cutting edge.
- the invention is based on a paper web described as an example of a material web. she is but with all other material webs that are in the course their production in longitudinal strips of predetermined width need to be cut, applicable. examples are Plastic or metal foils or cardboard sheets. In some cases, slitting also serves only for straightening one that runs parallel to the running direction Long edge. In this case, too Invention application.
- Paper webs are often produced in widths that are too large for the later user.
- Modern paper machines produce paper webs in widths of up to 10 m
- Users such as printers, use paper webs up to a maximum of 3.8 m.
- the desired width is even lower, namely in the range between 0.8 and 2 m. It is therefore necessary to close the paper web before winding Subdivide winding rolls into several partial webs.
- This Longitudinal cutting is carried out with every cutting line a knife unit, usually in a "silhouette" works and by a circular top knife on one side of the paper web and one too circular, lower knife on the other side of the Paper web is formed, usually at least one of these knives is powered.
- the touch plane forms between the upper knife and lower knife Cutting edge. The cutting edge usually falls with one end of the lower knife together.
- the width of the partial paper webs desired by the user is given relatively precisely.
- the tolerances are here in the range of ⁇ 0.25 mm.
- the cutting edges of the knife unit be positioned with the appropriate accuracy can.
- the positions of each Cutting edges can then be attached to these Read the measuring tape. If you put these positions into one programmable logic controller can be entered then move to other positions, for example when changing the cutting plan. This process will also called manual calibration.
- DE 34 17 042 C2 shows a similar method in which on the one hand the position of the carrier in the machine frame determined, but also the position the cutting knife edge on the respective carrier.
- the individual carriers determine this position sequentially passed sensors in the machine frame are stationary, with those leading past necessary time between a marking on the carrier and the cutting edge a statement about the distance of the Cutting edge allowed from this mark.
- This approach has the advantage that one in operation permanently about the position of the beams in the machine frame can be informed.
- the absolute position of the However, the cutting edge is still faulty. This results in on the one hand by the fact that this position is only relative can be determined. Second, changes, that occur during operation, for example through Wear, not detected.
- the cutting knives of a knife unit usually have to be reground from time to time. After every Regrinding therefore requires recalibration. In addition, however, arise in the Operation wear and tear that is quite common in the Order of magnitude of the tolerance range.
- the invention has for its object the determination to improve the position of the cutting edge.
- This task is carried out in a method of the aforementioned Art solved in that the position of the Cutting edge directly on the carrier and the position the carrier is determined in the machine frame and the absolute position of the cutting edge in the machine frame by combining these two positions is formed.
- At least the position of the cutting edge is preferred on the carrier by measuring a distance between the cutting edge and a beam-fixed first Fixed point determined. This approach is preferable because the distance of the cutting edge from changes the fixed point, for example when the Cutting edge due to regrinding of the lower knife shifted.
- a particular advantage of the invention is that that both positions are determined permanently. So you can use a microprocessor in every program cycle be read in with a control device is working. Can between individual import processes are quite short times, as is the case with microprocessor-controlled Machines is common. These times but are usually in areas smaller than 1 Second, so that they play no role in practice. By continuously monitoring the positions deviations of the cutting edge from the target position record quickly and compensate if necessary.
- the object is achieved in a device of the type mentioned Kind solved in that the measuring device two Has transducers, of which a first transducer is arranged on the carrier and the distance the cutting edge to a fixed first fixed point determined, and a second transmitter the distance a second fixed fixed point from one in the machine frame stationary zero point determined.
- the position of the carrier in the Machine frame can be determined by determining the Distance between a fixed fixed point and the Determine the zero point in the machine frame. Here too achieve high measuring accuracy. If you both Merging measured values results in an extremely precise Position determination. Since this position determination in Operating position and especially during operation Any errors that may occur can follow be compensated quickly.
- the second transmitter preferably has a stationary one active and a moving passive part on. This means that the second transmitter does not require flexible Connections between the carrier and an evaluation device, which makes the operation easier and that Risk of measurement errors further reduced.
- the active part is preferably designed as a measuring ruler.
- a measuring ruler works with a placemark, i.e. the second fixed point, on the beam together.
- the measuring ruler can be optically, acoustically, magnetically, work electromagnetically or capacitively. It allows the determination of the position with high accuracy.
- the two fixed points preferably coincide. This facilitates the evaluation. You need for the calculation the absolute position of the cutting edge Offset more.
- a comparator with the first is advantageous Sensor connected, which issues an error message, if the distance is below or below a predetermined value exceeds.
- Material web 3 for example a paper web
- a carrier 4 which is also referred to as a "carriage" can be.
- This carrier 4 is transverse on rails 5 slidable to the direction of travel 2. He can do this on Rollers 6 be stored.
- a circular knife 7 On the carrier 4 there is a circular knife 7, the is driven by a motor 8.
- the circular knife 7 is on one side, here the top, the Material web 3.
- a counter knife 9 is arranged on the Circular knife 7 is employed.
- the counter knife 9 lies under spring force with a relatively small overlap on the face of the circular knife 7.
- Circular knife 7 and counter knife 9 thus work together like scissors and create a cutting line 10, the location of which by the position of the cutting edge 11 of the circular knife 7 is defined.
- the counter knife 9 of course does not hang freely in the Air. It is attached to a similar support, the but is not shown for reasons of clarity.
- the carrier of the counter knife 9 can be reduced Accuracy can be positioned because of the counter knife 9 here with spring force on the circular knife 7 becomes.
- the measuring device has a first transmitter 12, the position the cutting edge 11 to a fixed point 13 on the carrier (in Fig. 2 shown as a line) determined. Furthermore points the measuring device on a second transmitter, the from a fixed machine frame (of which only the Rails 5 are shown) mounted measuring ruler 14 and a placemark 15 firmly connected to the carrier consists.
- the measuring ruler 14 is the active part of the second transmitter and the placemark 15 the passive Part. In the present case it is the right edge the placemark 9 the "measuring point".
- Both position transducers work without contact, for example optical, acoustic, magnetic, electromagnetic or capacitive type and Wise.
- the operation of the position detection is now to be based on FIG are explained in more detail. Same parts are provided with the same reference numerals.
- the web of material 3 is in FIG. 2 for the sake of clarity just as omitted as the carrier for the counter knife 9. Two knife units A, B are shown.
- the first transducer 12 determines the knife unit A a distance II between the cutting edge 11 and the fixed point 13 (also equal to the right edge the placemark 15).
- the second transmitter 14, 15 determines a distance I between a zero point 0 and the same fixed point 13. An addition of both distances then provides the removal of the cutting edge 11 to zero 0 and thus the exact position of the Cutting edge in the machine frame.
- the individual distances I-IV are an evaluation device supplied, which is not shown.
- the evaluation device can also have a comparator who checks whether the distances II, IV exceed a predetermined minimum value. If the Distances II or IV less than or equal to is this minimum value, then the comparator gives one Warning off. It can be used to ensure that a Circular knife 7 with undersize immediately recognized and displayed becomes.
- the control device mentioned the absolute position of the cutting edge 11 on each Carrier 4 known.
- the control device must then only ensure that the carrier 4 with its fixed point 13 the corresponding position opposite the measuring ruler Take 14. For this purpose, it can move the carriers 4 either with its own drive the carriers or via an external drive the carriers, as is known in itself.
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Forests & Forestry (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Details Of Cutting Devices (AREA)
- Nonmetal Cutting Devices (AREA)
Abstract
Description
- Fig. 1
- eine perspektivische Ansicht einer schematischen Anordnung einer Schneideinrichtung mit einer Messereinheit und
- Fig. 2
- eine Seitenansicht einer Schneideinrichtung mit zwei Messereinheiten.
Claims (9)
- Verfahren zum Längsschneiden einer in Laufrichtung laufenden Materialbahn, bei dem mindestens eine Messereinheit auf einem Träger in einem Maschinengestell quer zur Laufrichtung verschoben und die Position ihrer Schneidkante im Maschinengestell ermittelt wird, dadurch gekennzeichnet, daß die Position der Schneidkante (11) unmittelbar auf dem Träger (4) und die Position des Trägers (4) im Maschinengestell ermittelt wird und die absolute Position der Schneidkante (11) im Maschinengestell durch Kombination dieser beiden Positionsangaben gebildet wird.
- Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß zumindest die Position der Schneidkante (11) auf dem Träger (4) durch Messen einer Entfernung (II, IV) zwischen der Schneidkante (11) und einem trägerfesten ersten Fixpunkt (13) ermittelt wird.
- Verfahren nach Anspruch 2, dadurch gekennzeichnet, daß überwacht wird, ob die Entfernung (II, IV) ein vorbestimmtes Mindestmaß über- oder ein vorbestimmtes Maximalmaß unterschreitet, und in diesen Fall eine Fehlermeldung ausgegeben wird.
- Verfahren nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß beide Positionen permanent ermittelt werden.
- Vorrichtung zum Längsschneiden einer in Laufrichtung laufenden Materialbahn mit mindestens einer Messereinheit, die eine Schneidkante aufweist und auf einem Träger angeordnet ist, der in einem Maschinengestell quer zur Laufrichtung verschiebbar ist, und mit einer Meßeinrichtung zur Ermittlung der Position der Schneidkante, dadurch gekennzeichnet, daß die Meßeinrichtung zwei Meßwertgeber aufweist, von denen ein erster Meßwertgeber (12) auf dem Träger (4) angeordnet ist und die Entfernung (II, IV) der Schneidkante (11) zu einem trägerfesten ersten Fixpunkt (13) ermittelt, und ein zweiter Meßwertgeber (14, 15) die Entfernung (I, II) eines zweiten trägerfesten Fixpunkts von einem im Maschinengestell (5) ortsfesten Nullpunkt (0) ermittelt.
- Vorrichtung nach Anspruch 5, dadurch gekennzeichnet, daß der zweite Meßwertgeber (14, 15) einen stationären aktiven und einen beweglichen passiven Teil aufweist.
- Vorrichtung nach Anspruch 6, dadurch gekennzeichnet, daß der aktive Teil als Meßlineal (14) ausgebildet ist.
- Vorrichtung nach einem der Ansprüche 5 bis 7, dadurch gekennzeichnet, daß die beiden Fixpunkte (13) zusammenfallen.
- Vorrichtung nach einen der Ansprüche 5 bis 8, dadurch gekennzeichnet, daß ein Vergleicher mit dem ersten Meßwertgeber (12) verbunden ist, der eine Fehlermeldung ausgibt, wenn die Entfernung (II, IV) einen vorbestimmten Wert unter- oder überschreitet.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19832871A DE19832871C1 (de) | 1998-07-22 | 1998-07-22 | Verfahren und Vorrichtung zum Längsschneiden einer Materialbahn |
DE19832871 | 1998-07-22 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0976509A2 true EP0976509A2 (de) | 2000-02-02 |
EP0976509A3 EP0976509A3 (de) | 2002-12-04 |
EP0976509B1 EP0976509B1 (de) | 2004-02-25 |
Family
ID=7874857
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99112151A Expired - Lifetime EP0976509B1 (de) | 1998-07-22 | 1999-06-24 | Verfahren und Vorrichtung zum Längsschneiden einer Materialbahn |
Country Status (3)
Country | Link |
---|---|
US (1) | US6382066B1 (de) |
EP (1) | EP0976509B1 (de) |
DE (2) | DE19832871C1 (de) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10023210B4 (de) * | 2000-05-12 | 2004-03-11 | Wilhelm Bilstein KG Spezialfabrik für Maschinenmesser und Kompressorventile | Verfahren zur Positionierung von Untermessern an einer Einrichtung zum Längsteilen einer Materialbahn |
WO2009156566A1 (en) * | 2008-06-26 | 2009-12-30 | Metso Paper, Inc. | Method and device for calibrating the position of blades of slitter- winder in fibrous-web machine |
CN102071566A (zh) * | 2011-02-28 | 2011-05-25 | 南通大东有限公司 | 半自动毛巾纵裁机 |
IT202200020169A1 (it) * | 2022-09-30 | 2024-03-30 | Sormec S R L | Macchina e relativo procedimento per realizzare imballi |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10034719A1 (de) * | 2000-07-17 | 2002-01-31 | Josef Froehling Gmbh Walzwerks | Längsteilschere |
FI115615B (fi) | 2002-08-08 | 2005-06-15 | Metso Paper Inc | Menetelmä ja laite paperi- tai kartonkikoneen pituusleikkurin terien aseman kalibroimiseksi |
DE202006017387U1 (de) * | 2006-11-15 | 2007-01-11 | DIENES WERKE FüR MASCHINENTEILE GMBH & CO. KG | Tiefeneinstellung für an einer Längsschneidemaschine angeordnete Messerhalter |
DE102007000685A1 (de) | 2007-08-31 | 2009-03-05 | Voith Patent Gmbh | Rollenschneidmaschine, insbesondere Längsschneidemaschine |
US20140260868A1 (en) * | 2013-03-15 | 2014-09-18 | Dienes Corporation Usa | Slitting Machine |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3407258A1 (de) | 1983-03-01 | 1984-09-06 | Oy Wärtsilä Ab, Helsinki | Verfahren und vorrichtung zur bestimmung der genauen stellung eines beweglichen glieds |
DE3417042A1 (de) | 1984-05-09 | 1985-11-14 | Lenox Europa Maschinen GmbH, 7312 Kirchheim | Verfahren zur steuerung der lage der schneidkanten an einer laengsschneidevorrichtung fuer bahnen aus papier und dergleichen sowie entsprechende laengsschneidevorrichtung |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2433302C3 (de) * | 1974-07-11 | 1981-07-23 | Jagenberg-Werke AG, 4000 Düsseldorf | Einrichtung zum Einstellen des gegenseitigen Abstandes mehrerer nebeneinander angeordneter Elemente, insbesondere von Messerpaaren zum Längsschneiden von Bahnmaterial |
DE2832982A1 (de) * | 1977-08-11 | 1979-02-22 | Masson Scott Thrissell Eng Ltd | Positionierungsvorrichtung |
CA1076020A (en) * | 1977-10-20 | 1980-04-22 | Rengo Co. | Tool positioning apparatus |
CA1180428A (en) * | 1980-11-13 | 1985-01-02 | Masateru Tokuno | Method and apparatus for positioning tools |
US4607552A (en) * | 1980-11-20 | 1986-08-26 | Beloit Corporation | Apparatus for automatically controlling the position of a plurality of slitters |
FI69771C (fi) * | 1983-08-12 | 1986-05-26 | Nokia Oy Ab | Foerfarande foer instaellning av bettenheter pao en numeriskt styrd cirkelskaeranordning |
IT1203458B (it) * | 1987-04-08 | 1989-02-15 | Elio Cavagna | Complesso per la traslazione selettiva o simultanea del posizionamento di coltelli e controcoltelli di preferenza circolari in una macchina atta alla recisione e/o taglio di materiale preferibilmente ma non criticamente cartaceo |
JP2662981B2 (ja) * | 1988-06-06 | 1997-10-15 | リンテック株式会社 | スリッター装置 |
DE3938278C2 (de) * | 1989-11-17 | 1993-12-09 | Jagenberg Ag | Vorrichtung zum Positionieren von entlang Führungen bewegbaren Schlitten oder dergleichen |
DE4106069C1 (de) * | 1991-02-27 | 1992-05-21 | J.M. Voith Gmbh, 7920 Heidenheim, De | |
EP0532933B1 (de) * | 1991-08-21 | 1995-11-02 | Tokyo Seimitsu Co.,Ltd. | Blattpositiondetektionsvorrichtung |
DE9410069U1 (de) * | 1994-06-22 | 1994-09-15 | Dienes Werke für Maschinenteile GmbH & Co KG, 51491 Overath | Positioniereinrichtung für Untermesser bei Längsschneidemaschinen |
US5735184A (en) * | 1995-10-27 | 1998-04-07 | Tidland Corporation | Powered tool positioner system |
-
1998
- 1998-07-22 DE DE19832871A patent/DE19832871C1/de not_active Expired - Fee Related
-
1999
- 1999-06-24 EP EP99112151A patent/EP0976509B1/de not_active Expired - Lifetime
- 1999-06-24 DE DE59908623T patent/DE59908623D1/de not_active Expired - Fee Related
- 1999-07-21 US US09/358,663 patent/US6382066B1/en not_active Expired - Fee Related
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3407258A1 (de) | 1983-03-01 | 1984-09-06 | Oy Wärtsilä Ab, Helsinki | Verfahren und vorrichtung zur bestimmung der genauen stellung eines beweglichen glieds |
DE3417042A1 (de) | 1984-05-09 | 1985-11-14 | Lenox Europa Maschinen GmbH, 7312 Kirchheim | Verfahren zur steuerung der lage der schneidkanten an einer laengsschneidevorrichtung fuer bahnen aus papier und dergleichen sowie entsprechende laengsschneidevorrichtung |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10023210B4 (de) * | 2000-05-12 | 2004-03-11 | Wilhelm Bilstein KG Spezialfabrik für Maschinenmesser und Kompressorventile | Verfahren zur Positionierung von Untermessern an einer Einrichtung zum Längsteilen einer Materialbahn |
WO2009156566A1 (en) * | 2008-06-26 | 2009-12-30 | Metso Paper, Inc. | Method and device for calibrating the position of blades of slitter- winder in fibrous-web machine |
CN102071566A (zh) * | 2011-02-28 | 2011-05-25 | 南通大东有限公司 | 半自动毛巾纵裁机 |
CN102071566B (zh) * | 2011-02-28 | 2012-05-23 | 南通大东有限公司 | 半自动毛巾纵裁机 |
IT202200020169A1 (it) * | 2022-09-30 | 2024-03-30 | Sormec S R L | Macchina e relativo procedimento per realizzare imballi |
Also Published As
Publication number | Publication date |
---|---|
US6382066B1 (en) | 2002-05-07 |
EP0976509A3 (de) | 2002-12-04 |
DE59908623D1 (de) | 2004-04-01 |
DE19832871C1 (de) | 2000-05-31 |
EP0976509B1 (de) | 2004-02-25 |
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