EP 0705786 B1 20011219 - Conveyance apparatus for ultrathin webs comprising a roller with contoured surface
Title (en)
Conveyance apparatus for ultrathin webs comprising a roller with contoured surface
Title (de)
Vorrichtung zum Führen von ultradünnen Bahnen mit einer Transportrolle mit profilierter Oberfläche
Title (fr)
Appareil pour transporter des bandes ultrafines comprenant un rouleau avec surface profilée
Publication
Application
Priority
US 32007694 A 19941007
Abstract (en)
[origin: EP0705786A2] A web conveying roller (18) is provided with circumferentially or spirally extending grooves (42) and lands (44), the lands having convex curvatures (46, 48; 54) to cause a conveyed, ultrathin web (30), at the beginning of a wrap angle ( alpha ) onto the roller, to undulate along the width of the roller over the lands and into the grooves while remaining spaced from the convex curvatures of the lands; so that, air entrained between the web and the lands can flow into the grooves. <IMAGE>
IPC 1-7
IPC 8 full level
B65H 27/00 (2006.01); F16C 13/00 (2006.01)
CPC (source: EP)
B65H 27/00 (2013.01); B65H 2404/1311 (2013.01); B65H 2404/13161 (2013.01)
Designated contracting state (EPC)
DE FR GB IT
DOCDB simple family (publication)
EP 0705786 A2 19960410; EP 0705786 A3 19961120; EP 0705786 B1 20011219; DE 69524705 D1 20020131; DE 69524705 T2 20020814; JP H08175727 A 19960709
DOCDB simple family (application)
EP 95115687 A 19951005; DE 69524705 T 19951005; JP 25873695 A 19951005