Winding coil e.g. for winding web or thread based material, has reel core and front side, with sleeve room having side flanges diagonally or perpendicularly arranged to central longitudinal axis of reel core

摘要

The coil has a reel core and a front side, with a sleeve room having side flanges (12, 13) diagonally or perpendicularly arranged to a central longitudinal axis of the reel core (11). Transient areas between the front side flanges and the reel core are provided edge-free. The transient areas (14, 15) are arranged in a circular arc.