Global Patent Index - EP 1448322 A1

EP 1448322 A1 20040825 - METHOD AND DEVICE FOR STABILIZING HIGH-SPEED UNWINDING OF A STRIP PRODUCT

Title (en)

METHOD AND DEVICE FOR STABILIZING HIGH-SPEED UNWINDING OF A STRIP PRODUCT

Title (de)

VERFAHREN UND VORRICHTUNG ZUR STABILISIERUNG EINES MIT GROSSER GESCHWINDIGKEIT LAUFENDEN BANDFÖRMIGEN PRODUKTES

Title (fr)

PROCEDE ET DISPOSITIF DE STABILISATION DU DEFILEMENT A GRANDE VITESSE D'UN PRODUIT EN BANDE

Publication

EP 1448322 A1 20040825 (FR)

Application

EP 02790556 A 20021112

Priority

  • FR 0203869 W 20021112
  • FR 0114619 A 20011112

Abstract (en)

[origin: WO03041885A1] The invention concerns a method and a device for stabilizing high-speed unwinding along a longitudinal direction, of a strip (4) applied on a rotating surface (3) and along which part of the ambient air forms a boundary layer (43) driven with the strip (4). The invention is characterized in that it consists in placing in the dihedral (G) between the strip (4) and the rotating surface (3), a deflecting member (5) whereof the surface (50) facing the strip is inclined relative thereto and is provided with at least an orifice (55) emerging in the internal space (51) arranged inside the deflecting member (5) and connected to an external zone, said inclined surface (50), forming with the inner surface (41) of the strip (4), a convergent (C1) wherein the pressure increases relative to the pressure in the internal space (51), the pressure differential determining evacuation of a certain air flow through the orifice (55) and the break in the remaining part of the air mass driven in the boundary layer (43).

IPC 1-7

B21B 41/00; B21B 38/02; B21C 47/06; B21C 47/34; B65H 18/26; B65H 23/26

IPC 8 full level

B21B 38/02 (2006.01); B21B 41/00 (2006.01); B21C 47/06 (2006.01); B21C 47/34 (2006.01); B65H 18/08 (2006.01); B21B 1/40 (2006.01); B21B 3/00 (2006.01); B21B 15/00 (2006.01); B21B 41/08 (2006.01)

CPC (source: EP US)

B21B 38/02 (2013.01 - EP US); B21B 41/00 (2013.01 - EP US); B21C 47/06 (2013.01 - EP US); B21C 47/34 (2013.01 - EP US); B65H 18/08 (2013.01 - EP US); B21B 1/40 (2013.01 - EP US); B21B 41/08 (2013.01 - EP US); B21B 2003/001 (2013.01 - EP US); B21B 2015/0064 (2013.01 - EP US); B65H 2406/351 (2013.01 - EP US); B65H 2601/211 (2013.01 - EP US); B65H 2701/173 (2013.01 - EP US)

Citation (search report)

See references of WO 03041885A1

Designated contracting state (EPC)

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

DOCDB simple family (publication)

WO 03041885 A1 20030522; AT 388771 T 20080315; CN 1296151 C 20070124; CN 1607982 A 20050420; DE 60225588 D1 20080424; DE 60225588 T2 20080925; EP 1448322 A1 20040825; EP 1448322 B1 20080312; ES 2300496 T3 20080616; FR 2832084 A1 20030516; FR 2832084 B1 20040514; US 2004245367 A1 20041209; US 7300018 B2 20071127

DOCDB simple family (application)

FR 0203869 W 20021112; AT 02790556 T 20021112; CN 02826066 A 20021112; DE 60225588 T 20021112; EP 02790556 A 20021112; ES 02790556 T 20021112; FR 0114619 A 20011112; US 49435804 A 20040511