EP 2539264 A1 20130102 - CORE FOR AN ENDLESS WEB OF A PLASTIC FILM
Title (en)
CORE FOR AN ENDLESS WEB OF A PLASTIC FILM
Title (de)
WICKELHÜLSE FÜR EINE ENDLOSE BAHN EINER KUNSTSTOFFFOLIE
Title (fr)
MANCHON D'ENROULEMENT POUR UNE BANDE CONTINUE DE FILM EN PLASTIQUE
Publication
Application
Priority
- CH 3292010 A 20100309
- CH 3282010 A 20100309
- CH 2332010 A 20100223
- CH 2011000036 W 20110223
Abstract (en)
[origin: WO2011103695A1] The invention relates to a winding shaft for winding a continuous flexible material web into a roll. The winding shaft has means in order to adjust the diameter of the winding shaft surface to be wound between a reduced-diameter unused position and an expanded operating position, and the winding surface in the expanded position is formed jointlessly with a uniform curvature and is supported inward against the operational pressure around said winding surface in a dimensionally stable manner that is substantially uniform. A roll can thereby be wound without disruptions and then stored without a casing until the roll "dies", said roll remaining stable during storage and not forming any disrupted zones on the inner face of the roll.
IPC 8 full level
B65H 75/24 (2006.01)
CPC (source: EP US)
B65H 75/2437 (2021.05 - EP US); B65H 75/245 (2013.01 - EP US)
Citation (search report)
See references of WO 2011103696A1
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
WO 2011103695 A1 20110901; EP 2539263 A1 20130102; EP 2539264 A1 20130102; EP 2539264 B1 20151014; US 2013186997 A1 20130725; US 2013193260 A1 20130801; WO 2011103696 A1 20110901
DOCDB simple family (application)
CH 2011000035 W 20110223; CH 2011000036 W 20110223; EP 11710658 A 20110223; EP 11710659 A 20110223; US 201113580457 A 20110223; US 201113580531 A 20110223