EP 3057897 A1 20160824 - WINDING SHAFT
Title (en)
WINDING SHAFT
Title (de)
WICKELWELLE
Title (fr)
ARBRE D'ENROULEMENT
Publication
Application
Priority
- DE 102013220855 A 20131015
- DE 102013221131 A 20131017
- DE 102013020351 A 20131210
- DE 102014003595 A 20140317
- EP 2014072108 W 20141015
Abstract (en)
[origin: WO2015055713A1] The invention relates to a tensioning shaft for winding a material web, in particular of plastic films, namely in particular of stretch films. In order to provide a tensioning shaft having the highest possible strength and rigidity, a tensioning shaft is provided which has a shaft body which in order to achieve the highest possible bending stiffness consists predominantly of fibre-reinforced plastic, and having cavities which are provided along the external circumference of the shaft body, wherein the cavities are delimited in the radial internal direction by a layer of the fibre-reinforced plastic are and wherein tensioning strips are expandable out of the cavities in the radial external direction.
IPC 8 full level
B65H 75/24 (2006.01)
CPC (source: EP US)
B65H 75/2437 (2021.05 - EP US); B65H 2401/112 (2013.01 - EP US); B65H 2401/23 (2013.01 - EP US); B65H 2404/41 (2013.01 - EP US); B65H 2515/81 (2013.01 - EP US)
Citation (search report)
See references of WO 2015055713A1
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
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
WO 2015055713 A1 20150423; CN 105849021 A 20160810; CN 105849021 B 20180515; EP 3057897 A1 20160824; US 2016229662 A1 20160811
DOCDB simple family (application)
EP 2014072108 W 20141015; CN 201480056954 A 20141015; EP 14786166 A 20141015; US 201415029688 A 20141015