Global Patent Index - EP 1186703 A3

EP 1186703 A3 2002-09-18 - Doctor arrangement

Title (en)

Doctor arrangement

Title (de)

Schaberanordnung

Title (fr)

Dispositif de raclage

Publication

EP 1186703 A3 (DE)

Application

EP 01118943 A

Priority

DE 20014746 U

Abstract (en)

[origin: EP1186703A2] The scraper assembly, to clean a roller or cylinder in a papermaking machine, has a scraper blade carrier (6) with a stiffness across the width which is at least 1.5 times that along the length. The scraper blade carrier (6) is of a plastics material, with reinforcement fibers of carbon or glass or plastics, and with a constant profile along its length. The scraper blade carrier (6) swings on an axis (8) at a blade holder (7). At least one pressure unit (9,10) is between the blade carrier (6) and the holder (7) which is automatically matched, irrespective of pressure. A pressure unit (9,10) is preferably on both sides of the swing axis (8), as a hose with an inlet (12) on the side towards the blade carrier (6) to accommodate a push rod (13) at the carrier (6). The inlet (12) is held in a state of balance, with the blade carrier (6) and holder (7) parallel to each other, with a depth which is at least 30% of the height (h) of the pressure units (9,10). The push rods (13) extend further in the direction of the blade holder (7) than the gap between the blade carrier (6) and the axis (8). A support (11) is at the sides of the hose without the inlet (12), using a U-shaped structure at the blade holder (7). The pressure units can be eccentrics, rotating parallel to the axis (8) on a shaft operated outside the blade holder (7). The shaft is under spring tension. Or the pressure unit is a spring, with a preset tension, as a leaf spring fitted to a rotating shaft at one edge. The gap (b) between the free edge of the scraper blade (2) and the axis (8) is at least five times a gap (a) between the axis (8) and the force application point of the pressure unit (9) away from the blade. A projected extension (14) of the blade (2) runs through the axis (8) or a zone between the blade carrier (6) and the axis (8). The scraper blade (2) has a free width (d) which is max. 2.5 times a gap (c) between the end of the carrier (6) on the blade side and a clamping point (15) of a blade holder (5), which has an effective opening (16) which, at max., is twice the thickness (s) of the blade (2). The blade (2) has a holding width (f) which is at least as large as the gap (c) between the clamping point (15) and the carrier (6). The blade holder (5) has a flap swing action at the carrier (6) and, when closed, can be locked to the carrier (6) by a lock which grips through the blade carrier (6).

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

D21G 3/00

IPC 8 full level (invention and additional information)

D21G 3/00 (2006.01); D21H 25/10 (2006.01)

CPC (invention and additional information)

D21H 25/10 (2013.01); D21G 3/005 (2013.01)

Citation (search report)

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

EPO simple patent family

DE 20014746 U1 20001019; DE 50107966 D1 20051215; EP 1186703 A2 20020313; EP 1186703 A3 20020918; EP 1186703 B1 20051109

INPADOC legal status


2013-09-26 [REG DE R119] APPLICATION DEEMED WITHDRAWN, OR IP RIGHT LAPSED, DUE TO NON-PAYMENT OF RENEWAL FEE

- Document: DE 50107966

- Effective date: 20130301

2013-07-31 [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: 20130301

2013-04-30 [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 NON-PAYMENT OF DUE FEES

- Effective date: 20120804

2011-11-30 [PGFP FI] POSTGRANT: ANNUAL FEES PAID TO NATIONAL OFFICE

- Ref Country Code: FI

- Payment date: 20110812

- Year of fee payment: 11

2011-11-30 [PGFP DE] POSTGRANT: ANNUAL FEES PAID TO NATIONAL OFFICE

- Ref Country Code: DE

- Payment date: 20110823

- Year of fee payment: 11

2007-04-24 [EUG] SE: EUROPEAN PATENT HAS LAPSED

2006-10-18 [26N] NO OPPOSITION FILED

- Effective date: 20060810

2006-09-13 [RAP2] TRANSFER OF RIGHTS OF AN EP GRANTED PATENT

- Owner name: VOITH PATENT GMBH

2006-08-05 [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 NON-PAYMENT OF DUE FEES

- Effective date: 20060805

2006-02-28 [REG SE TRGR] TRANSLATION OF GRANTED EP PATENT

2005-12-15 [REF] CORRESPONDS TO:

- Document: DE 50107966 P 20051215

2005-11-09 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: B1

- Designated State(s): DE FI SE

2003-06-04 [AKX] PAYMENT OF DESIGNATION FEES

- Designated State(s): DE FI SE

2002-10-23 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20020816

2002-09-18 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A3

- Designated State(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

2002-09-18 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO:

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

2002-03-13 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A2

- Designated State(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR

2002-03-13 [AX] REQUEST FOR EXTENSION OF THE EUROPEAN PATENT TO:

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