EP0957053B1 - Méthode pour contrôler la densité d'enroulement d'une bobine à enrouler - Google Patents

Méthode pour contrôler la densité d'enroulement d'une bobine à enrouler Download PDF

Info

Publication number
EP0957053B1
EP0957053B1 EP99109028A EP99109028A EP0957053B1 EP 0957053 B1 EP0957053 B1 EP 0957053B1 EP 99109028 A EP99109028 A EP 99109028A EP 99109028 A EP99109028 A EP 99109028A EP 0957053 B1 EP0957053 B1 EP 0957053B1
Authority
EP
European Patent Office
Prior art keywords
material web
winding
determined
web
tension
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
EP99109028A
Other languages
German (de)
English (en)
Other versions
EP0957053A1 (fr
Inventor
Hans-Rolf Dipl.-Ing. Conrad
Dirk Dipl.-Ing. Cramer
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.)
Voith Patent GmbH
Original Assignee
Voith Paper Patent 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 Voith Paper Patent GmbH filed Critical Voith Paper Patent GmbH
Publication of EP0957053A1 publication Critical patent/EP0957053A1/fr
Application granted granted Critical
Publication of EP0957053B1 publication Critical patent/EP0957053B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H18/00—Winding webs
    • B65H18/08—Web-winding mechanisms
    • B65H18/26—Mechanisms for controlling contact pressure on winding-web package, e.g. for regulating the quantity of air between web layers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H23/00—Registering, tensioning, smoothing or guiding webs
    • B65H23/04—Registering, tensioning, smoothing or guiding webs longitudinally
    • B65H23/044—Sensing web tension
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2515/00—Physical entities not provided for in groups B65H2511/00 or B65H2513/00
    • B65H2515/12—Density

Definitions

  • the invention relates to a method for monitoring the Winding hardness of a winding roll when winding a material web.
  • the invention is based on a paper web described as an example of a material web. she is however also applicable to other material webs.
  • a paper web has to be to salable rolls, so-called winding rolls, be wound up.
  • This serves as the winding core usually a cardboard sleeve.
  • Factors that affect the winding hardness e.g. the pressure with which the paper web is pressed onto the winding roll, when the paper web hits the winding roll, and the wrapped tension in the paper web.
  • This Tension can be changed, for example, by that the winding roll with a larger or smaller Torque is driven.
  • a carrier roller winder where the winding roll in a changing bed lies, which is formed from two (or more) support rollers is, you can also get a wrapped tension change that one of the two support rollers one different speed or torque than the other has.
  • a method for monitoring the winding hardness is from EP 224 898 A1 known.
  • the measuring rollers roll without slipping on the material web.
  • the measuring rollers are with pulse generators connected with a high resolution one Deliver a predetermined number of pulses per revolution. From the difference in the pulse numbers of the two measuring rollers one can change the length of the material web conclude.
  • DE 22 56 882 A1 shows a paper web stretch control and a device for carrying out this regulation, in which the web stretch is determined in that two places the web speeds and the tensions be determined in the train. From the in a time interval paper mass fed at both points can be drawn up a differential equation in which in the case of keeping the elongation constant, the distance length between the two measuring points. Summarized with Hooke's law for stretching as a quotient of tension / modulus of elasticity the stretch is derived approximately.
  • GB 2 117 935 A deals with the control of the winding hardness when winding a material web into a winding roll.
  • the winding roll is in a changing bed, that consists of two individually driven carrier rollers becomes.
  • Each carrier roller is connected to a pulse generator. From the output signals of the pulse generators you can calculate a speed difference. additionally will the tension of the web before entering measured in the changing bed.
  • a rider roll is provided which rests on the winding roller and drives can be.
  • US 4,835,720 A1 shows the possibility of markings to determine the surface of a material web optically.
  • the invention has for its object the winding hardness when winding a material web into a winding roll to monitor.
  • This task is accomplished by a method with the characteristics of claim 1 solved.
  • Measurements or determinations of length the one before applying traction and the other after Applying the tensile force or after increasing the tensile force lies. This reduces the measurement effort. If now such measurements or determinations for many sections one after the other, then you win with the desired continuity the information about the tension.
  • a nip or nip results in one Decoupling the tension in the material web before and behind the nip. This allows the two states reliably separate the material web from each other. The information about the stretch is then clear.
  • nip between the winding roll and one Carrier roller you have no additional Use components to create the nip. This is available anyway and can be used for implementation measurement.
  • the elongation is preferably determined optically. At the Wrapping it is virtually impossible to interfere in to make the paper web. An optical measurement can but done without contact. It is also in able to make even relatively small changes, i.e. relative to determine small strains. With the ruling Tension will only result in small strains.
  • the material web with markings is provided, their distance or length determined becomes. This makes optical measurement easier. With The markings can be made using suitable sensors detect. Before applying the tension (or when If there is a first tension) markings applied. Then when the tension is applied or is increased, then the markings expand with the Material web or its distance increases. If you do that Distance of the markings or their length determines wins the information about the change in length or the stretch of the material web when the tensile stress changes. You only have to make sure that the Material web actually with the determined tensile stress is wound up.
  • the material web then has again an unmarked surface, what from the end user is ultimately desired. After determining the Stretching is also not necessary for the markings remain on the surface of the material web.
  • the time is preferably less than 15 minutes. This Time is sufficient to complete the measurements with the required To be able to perform accuracy. But it is on the other hand small enough so that there is no need to fear that marked web rolls are delivered.
  • a time measurement can be done with the time standards available today, for example quartz resonant circuits with relatively high frequency, with high Perform accuracy.
  • the information about the length or the distance between the markings can be obtained via the Speed measurement of the material web. If you now combined both sizes, then you get simple Way the desired information about length or distance.
  • the tensile stress is advantageously dependent regulated by the determined elongation.
  • the elongation determined as the actual value is compared with the target value. In the event of deviations the tension must be changed in the right direction to match the actual and target values again bring to.
  • a material web 1 passes through a guide arrangement 2 a nip 3 or nip before going to a take-up station 4 is performed.
  • the winding station 4 is formed by two support rollers 5, 6, which between form a winding bed 7 in which a winding roll 8 lies on which the material web 1 is wound becomes. As a rule, the winding station 4 is behind a cutting device, not shown.
  • the winding roll 8 is driven by a motor 9, i.e. the motor 9 generates a torque on the winding roll 8th.
  • the material web 1 wraps around a support roller 5 about 180 ° and then runs through a nip 10 between the winding roller 8 and the support roller 5.
  • This nip 10 decouples the tension in the area between the Guide assembly 2 with its nip 3 and the support roller 5 on the one hand from the tensile stress that is on the surface the winding roll 8 is generated by the motor 9.
  • the tensile stress in the former area has the Value F1.
  • the tension F1 is known, for example it can be zero if the guide arrangement 2 and the support roller 5 with the same peripheral speed are driven.
  • the tension F2 depends substantially from the moment generated by the engine 9 becomes.
  • This paint application device 11 To determine the tension, there is a paint application device behind the nip 3, but in front of the support roller 5 arranged.
  • This paint application device 11 generates Color dots 12 with a predetermined distance d1. Since the Speed of the material web 1 is known (see can, for example, by a speed sensor 13 can be determined, which in the present case relates to a Speed and diameter determination of the winding roll 8 is based), results from the time interval, with which the paint application device the color dots 12 orders, a first value that a control device 14 is supplied. Of course you can Design the arrangement so that the control device 14 the ink application device 11 in predetermined time Intervals controlled so that the paint application device 11 color dots with the distance d1 on the Applies material web 1.
  • the paint application device 11 forms a first measuring point, at which the length of a section of the web of material 1 can be determined. Under “determination” is understood that the information about the length of this Section after passing through the measuring point stands. The information is also available if the length is only specified in this measuring point becomes.
  • the tension F2 is greater than the tension F1
  • the material web 1 expands. This is in Fig. 2 shown exaggerated. Accordingly the distance d2 between two points 12 is greater.
  • the distance between the points 12 is determined using a color measuring device 15 determined, which optically recognizes the points 12.
  • the color measuring device 15 also determines the Time between running through two consecutive Color dots pass. This time will go to the Control device 14 reported back.
  • the constant c is dependent on the values of the material web 1. These values can be determined beforehand in a laboratory test become.
  • the through the color measuring device 15 After passing through the second measuring point, the through the color measuring device 15 is formed, are the points 12 (or other markings) no longer necessary. It is therefore used to generate points 12 (or other markings) a color that after a certain Time becomes invisible. Such a color is for example at the company Walter Toufar Deutschen, Herzgasse 39-41, A-1100 Vienna, Austria. Due to a pH shift that occurs after impact the color on a paper web, the Color liquid to a purely aqueous solution, the evaporates. After a while, for example after five minutes, there are no impurities or to see paint residues on the web.
  • the tension has a direct influence on the hardness of the winding the winding roll 8.
  • the control device 14 takes the tension curve as the target value and that determined by the color measuring device 15 Strain curve as the actual value and regulates the Motor 9 (or generally: the drive), so that the measured History in accordance with the given history comes. That way it's relative little effort possible, the winding hardness curve in one desired way to influence.

Landscapes

  • Controlling Rewinding, Feeding, Winding, Or Abnormalities Of Webs (AREA)

Claims (9)

  1. Méthode pour contrôler la densité d'enroulement d'une bobine à enrouler (8) lors de l'enroulement d'une bande de matériau (1), avec lequel l'allongement de la bande de matériau (1) est déterminé par une mesure sans contact du changement de longueur de la bande de matériau (1) entre deux points de mesure (11, 15) présentant une contrainte de traction différente (F1, F2), lesquels sont séparés l'un de l'autre par une ligne de contact (10), la ligne de contact (10) étant formée entre la bobine à enrouler (8) et un cylindre porteur (5).
  2. Méthode selon la revendication 1, caractérisée en ce que l'allongement (d2-d1) est déterminé à l'aide d'un dispositif (15) à fonctionnement optique.
  3. Méthode selon la revendication 2, caractérisée en ce que la bande de matériau (1) est munie de repères (12) dont on détermine l'écart (d1, d2) ou la longueur.
  4. Méthode selon la revendication 3, caractérisée en ce que la mesure de l'allongement est réalisée à une section de la bande de matériau (1) qui repose sur la bobine à enrouler (8).
  5. Méthode selon la revendication 2 ou 3, caractérisée en ce que l'on veille à ce que le repère (12) soit enlevé après la détermination.
  6. Méthode selon l'une des revendications 3 à 5, caractérisée en ce que les repères (12) sont produits en appliquant une encre qui devient invisible après une durée donnée.
  7. Méthode selon la revendication 6, caractérisée en ce que la durée est inférieure à 15 minutes.
  8. Méthode selon l'une des revendications 3 à 7, caractérisée en ce que la vitesse de la bande de matériau est déterminée d'un côté et que l'écart dans le temps ou la longueur dans le temps des repères (12) est déterminée de manière synchrone d'un autre côté.
  9. Méthode selon l'une des revendications 1 à 8, caractérisée en ce que la contrainte de traction est régulée en fonction de l'allongement déterminé.
EP99109028A 1998-05-13 1999-05-07 Méthode pour contrôler la densité d'enroulement d'une bobine à enrouler Expired - Lifetime EP0957053B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19821318 1998-05-13
DE19821318A DE19821318A1 (de) 1998-05-13 1998-05-13 Verfahren zum Überwachen der Wickelhärte einer Wickelrolle

Publications (2)

Publication Number Publication Date
EP0957053A1 EP0957053A1 (fr) 1999-11-17
EP0957053B1 true EP0957053B1 (fr) 2003-09-24

Family

ID=7867565

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99109028A Expired - Lifetime EP0957053B1 (fr) 1998-05-13 1999-05-07 Méthode pour contrôler la densité d'enroulement d'une bobine à enrouler

Country Status (3)

Country Link
US (1) US6209817B1 (fr)
EP (1) EP0957053B1 (fr)
DE (2) DE19821318A1 (fr)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19954072A1 (de) * 1999-11-10 2001-05-17 Siemens Ag Verfahren und Vorrichtung zum Aufwickeln von Kabeln auf eine Kabeltrommel
DE10019497C2 (de) * 2000-04-19 2002-03-21 Siemens Ag Verfahren und Vorrichtung zur Messung der Wickelhärte einer Papierrolle
US7022060B2 (en) * 2001-03-29 2006-04-04 Zsolt Design Engineering, Inc. Method, apparatus and system for making cushioning product, and roll tensioner therefor
FI111033B (fi) * 2001-06-15 2003-05-15 Metso Paper Inc Menetelmä rullan tiheyden määrittämiseksi
DE10137258B4 (de) * 2001-07-31 2004-04-15 Koenig & Bauer Ag Verfahren und Vorrichtung zur Ermittlung des Dehnungsverhaltens einer Papierbahn in einer Druckmaschine
US7047852B2 (en) * 2001-10-24 2006-05-23 Kimberly-Clark Worldwide, Inc. Feedforward control system for an elastic material
FI20022023A (fi) * 2002-11-13 2004-05-14 Metso Paper Inc Menetelmä kiinnirullaimen ohjaamiseksi
DE102004012727A1 (de) * 2004-03-16 2005-10-06 Voith Paper Patent Gmbh J-Linie
US20120076563A1 (en) * 2010-09-29 2012-03-29 Raimon Castells De Monet Image forming apparatus, media transport system usable with image forming apparatus, and method thereof
DE102012110790B4 (de) * 2012-11-09 2017-04-27 Windmöller & Hölscher Kg Verfahren für die Bestimmung der Wickelqualität eines Folienwickels
FI127840B (en) * 2017-03-23 2019-03-29 Valmet Technologies Oy A method for controlling the operation of a roller web for a fiber web
KR102420625B1 (ko) * 2020-11-20 2022-07-14 (주)엔피에스 가공 장치

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3721809A (en) * 1971-04-05 1973-03-20 Strandberg Eng Labor Inc Automatic thread counter and controller for fabric processing apparatus
DE2256882C3 (de) * 1972-11-20 1978-04-06 Albert-Frankenthal Ag, 6710 Frankenthal Regelvorrichtung vor dem Einlauf in eine die Papierbahn ziehende Bearbeitungsmaschine
US3858820A (en) * 1973-09-27 1975-01-07 Beloit Corp Double drum winder
US4070194A (en) * 1976-02-13 1978-01-24 Kinki Aerosol Industrial Co., Ltd. Ink for marking
DE2802466C3 (de) * 1978-01-20 1980-10-30 8022 Gruenwald Verfahren zum Messen der Abstände von Markierungen an einer Materialbahn, insbesondere zum Messen der Abstande der Transport-Randlochung an einer Endlospapierbahn, sowie Vorrichtung zur Ausführung dieses Verfahrens
DE2915829C2 (de) * 1979-04-19 1982-10-14 Herbert Ing.(Grad.) 4358 Haltern Gawarecki Verfahren zur Herstellung von Verpackungen oder Einwickelbehältern aus einer mehreren zeitlich versetzten Behandlungsabschnitten unterworfenen Materialbahn sowie deren Ausbildung
SE450703B (sv) 1982-04-01 1987-07-20 Asea Ab Sett for kontrollering av den i en parullad pappersrulle inrullade materialspenningen
JPS59158750A (ja) * 1983-02-25 1984-09-08 Mitsubishi Heavy Ind Ltd 巻き硬さ検出装置
JPS6123065A (ja) * 1984-07-11 1986-01-31 Oki Electric Ind Co Ltd 帯状体の巻取装置
DE3542633C3 (de) * 1985-12-03 1996-12-19 Lenox Europa Maschinen Gmbh Verfahren und Vorrichtung zum Wickeln von Papierrollen
DE3614436A1 (de) * 1986-04-29 1987-11-05 Jagenberg Ag Messeinrichtung fuer die druckzonenbreite und/oder flaechenpressung zwischen einem wickel einer materialbahn und einer gegen den wickel gedrueckten walze und verfahren zum wickeln einer materialbahn
JP2594928B2 (ja) * 1986-10-29 1997-03-26 川崎製鉄株式会社 ストリツプコイルの層間スリツプ検出方法
DE4115406A1 (de) * 1991-05-10 1992-11-12 Jagenberg Ag Wickelmaschine zum aufwickeln von materialbahnen
CH687519A5 (de) * 1992-07-06 1996-12-31 Tela Papierfabrik Ag Speicherrolle und Verfahren zu deren Herstellung.
IT1274126B (it) * 1994-11-25 1997-07-15 Gd Spa Dispositivo per il controllo di bobine, in particolare utilizzabile nelle macchine incartatrici
NL1000128C2 (nl) 1995-04-12 1996-10-15 Stork Contiweb Werkwijze voor het berekenen en regelen van de rek van een bewegende materiaalbaan en inrichting voor toepassing van de werkwijze.
US5586501A (en) * 1995-10-25 1996-12-24 Burguera; Bartolome Disappearing ink marking system

Also Published As

Publication number Publication date
US6209817B1 (en) 2001-04-03
DE59907078D1 (de) 2003-10-30
EP0957053A1 (fr) 1999-11-17
DE19821318A1 (de) 1999-11-25

Similar Documents

Publication Publication Date Title
EP0957053B1 (fr) Méthode pour contrôler la densité d'enroulement d'une bobine à enrouler
DE102008046902A1 (de) Verpackungsmaschine mit dynamischer Kettenspannung
DE2256882C3 (de) Regelvorrichtung vor dem Einlauf in eine die Papierbahn ziehende Bearbeitungsmaschine
EP2159536A2 (fr) Procédé de mesure sans contact de la vitesse et/ou de la longueur d'un faisceau déplacé dans le sens de la longueur, notamment d'un câble
CH681019A5 (fr)
DE102005058142A1 (de) Verfahren zur Bestimmung einer Dehnungseigenschaft einer Papierbahn
DE3401323C2 (fr)
DE69821989T2 (de) Vorrichtung zur faservereinzelung
EP1975103A2 (fr) Procédé et dispositif pour déterminer la tension dans une bande de matériau imprimé
DE10112679A1 (de) Verfahren und Vorrichtung zur Erkennung eines Fadenwickels
DE19963183A1 (de) Verfahren und Einrichtung zur Bestimmung des Zuges oder der Zugspannung in einem Metallband
DE19511801A1 (de) Verfahren und Vorrichtung zur Dickenvorsteuerung beim Folienwalzen
EP1596002B1 (fr) Machine à papier
DE2802466C3 (de) Verfahren zum Messen der Abstände von Markierungen an einer Materialbahn, insbesondere zum Messen der Abstande der Transport-Randlochung an einer Endlospapierbahn, sowie Vorrichtung zur Ausführung dieses Verfahrens
DE69604233T2 (de) Verfahren und Anlage zum Kaltwalzen mit Ausgleich der Unrundheit der Walzen
DE10137258B4 (de) Verfahren und Vorrichtung zur Ermittlung des Dehnungsverhaltens einer Papierbahn in einer Druckmaschine
WO2009059860A1 (fr) Procédé et dispositif de relevé d'une déchirure et/ou d'un module d'élasticité d'une bande de matériau
DE3705201A1 (de) Vorrichtung zur messung kleiner dickenprofilaenderungen in bandfoermigem material, insbesondere fotografischem basispapier
DE3716579C1 (fr)
DE10226499B4 (de) Verfahren und Vorrichtung zum Erfassen und Auswerten von Messsignalen
DE102007032987A1 (de) Verfahren zum Herstellen von Draht und Drahtwalzwerk
DE2830932A1 (de) Kontrollgeraet zur ueberwachung einer papierbahn
DE102022121030A1 (de) Textilmaschine mit einer Einrichtung zur Überwachung der Spannung in einem Riemen
DE19927118A1 (de) Vorrichtung zum Steuern der Drehgeschwindigkeit eines motorisch angetriebenen Wickelkörpers sowie Verfahren
DE1293011B (de) Vorrichtung zum Foerdern und Perforieren einer oder mehrerer Papierbahnen

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): DE FI FR GB

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

17P Request for examination filed

Effective date: 19990930

AKX Designation fees paid

Free format text: DE FI FR GB

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: VOITH PAPER PATENT GMBH

17Q First examination report despatched

Effective date: 20010727

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE FI FR GB

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20030924

Ref country code: FR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20030924

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

RIN1 Information on inventor provided before grant (corrected)

Inventor name: CRAMER, DIRK DIPL.-ING.

Inventor name: CONRAD, HANS-ROLF DIPL.-ING.

REF Corresponds to:

Ref document number: 59907078

Country of ref document: DE

Date of ref document: 20031030

Kind code of ref document: P

GBV Gb: ep patent (uk) treated as always having been void in accordance with gb section 77(7)/1977 [no translation filed]

Effective date: 20030924

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20040625

EN Fr: translation not filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FI

Payment date: 20110512

Year of fee payment: 13

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20110520

Year of fee payment: 13

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20120507

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 59907078

Country of ref document: DE

Effective date: 20121201

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20121201