Global Patent Index - EP 1099794 A1

EP 1099794 A1 2001-05-16 - Process and apparatus for threading a web tail

Title (en)

Process and apparatus for threading a web tail

Title (de)

Vorrichtung und Verfahren zur Überführung eines Einfädelstreifens einer Materialbahn

Title (fr)

Procédé et dispositif pour enfiler une bande

Publication

EP 1099794 A1 (DE)

Application

EP 00122669 A

Priority

DE 19954466 A

Abstract (en)

The assembly (1) to thread the leader strip of a paper/cardboard web, across the space between the pick-up zone (3) and transfer zone (5) of two machine sections, has two transfer belts (13,15) against each other at least at the transfer stretch. The leader strip is carried between the belts, which clamp it in place. The transfer belts (13,15) are moved from a rest position into the transfer stretch, across the direction of web travel, when a leader strip is to be threaded through. Each transfer belt (13,15) is continuous, forming a closed loop. They are brought together at the start of the transfer stretch, and separated at the end of it. The transfer belts (13,15) pass around at least one guide disk (25,27,29), rotating freely at the end side of a roller (7,9,11). The movement of the transfer belts (13,15), across the direction of web travel, is equal to the belt width of 20-600 mm and pref. 200 mm. The transfer belts (13,15) have a thickness of 0.2-4.0 mm. The position of the transfer belts (13,15) is shifted into the center of the web movement path. The transfer belts (13,15) are of plastics, metal or leather, and at least their facing surfaces are smooth. At least one transfer belt (13,15) is permeable to gas. Each transfer belt (13,15) is carried by a system (31,31') to move its position and has a unit (37,37') to control its edge setting together with a speed control. An Independent claim is included for a web leader strip threading action, where the transfer belt is moved from a parked position into the path of web travel. The web leader strip is advanced to lie on the transfer belt to be carried to the entry of the next machine section, and the transfer belt is returned to its inactive setting. Preferred Features: During the transfer action, the web leader strip is held firmly in a force fit by a clamping force between the two transfer belts which is sufficient to overcome a longitudinal drawing tension.

Abstract (de)

Es wird eine Vorrichtung und ein damit realisierbares Verfahren zur Überführung eines Einfädelstreifens einer Materialbahn, insbesondere Papier- oder Kartonbahn, im Bereich eines freien Bahnzugs von einem Übernahmebereich an einen Übergabebereich vorgeschlagen. Die Überführungsvorrichtung weist erste und zweite Überführungsbänder auf, die entlang des freien Bahnzugs verlagerbar und zumindest im Bereich der Überführungsstrecke aneinander anliegend geführt sind und den Einfädelstreifen zwischen sich klemmend halten. Darüber hinaus ist eine Bandverlagerungseinrichtung vorgesehen, mit deren Hilfe die Überführungsbänder aus einer außerhalb des Bahnlaufweges vorgesehenen Ruhestellung quer oder im wesentlichen quer zur Bahnlaufrichtung in den Bahnlaufweg hineinbewegbar sind. <IMAGE> <IMAGE>

IPC 1-7 (main, further and additional classification)

D21G 9/00

IPC 8 full level (invention and additional information)

D21G 9/00 (2006.01)

CPC (invention and additional information)

D21G 9/0063 (2013.01)

Citation (search report)

Designated contracting state (EPC)

AT DE FI SE

EPO simple patent family

EP 1099794 A1 20010516; EP 1099794 B1 20040519; AT 267292 T 20040615; DE 19954466 A1 20010517

INPADOC legal status


2005-05-11 [26N] NO OPPOSITION FILED

- Effective date: 20050222

2005-05-03 [PG25 DE] LAPSED IN A CONTRACTING STATE ANNOUNCED VIA POSTGRANT INFORM. FROM NAT. OFFICE TO EPO

- Ref Country Code: DE

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

- Effective date: 20050503

2004-10-18 [PG25 AT] LAPSED IN A CONTRACTING STATE ANNOUNCED VIA POSTGRANT INFORM. FROM NAT. OFFICE TO EPO

- Ref Country Code: AT

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

- Effective date: 20041018

2004-08-19 [PG25 SE] LAPSED IN A CONTRACTING STATE ANNOUNCED VIA POSTGRANT INFORM. FROM NAT. OFFICE TO EPO

- Ref Country Code: SE

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

- Effective date: 20040819

2004-06-24 [REF] CORRESPONDS TO:

- Document: DE 50006473 P 20040624

2004-05-19 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: B1

- Designated State(s): AT DE FI SE

2004-05-19 [PG25 FI] LAPSED IN A CONTRACTING STATE ANNOUNCED VIA POSTGRANT INFORM. FROM NAT. OFFICE TO EPO

- Ref Country Code: FI

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

- Effective date: 20040519

2004-05-19 [RIN1] INVENTOR (CORRECTION)

- Inventor name: HOFERER, ANDREAS

2004-05-19 [RIN1] INVENTOR (CORRECTION)

- Inventor name: STERZ, HELMUT

2002-02-13 [AKX] PAYMENT OF DESIGNATION FEES

- Free text: AT DE FI SE

2002-01-16 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20011116

2001-05-16 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): AT DE FI SE

2001-05-16 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO

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