Synthetic-resin support or center for winding yarns into packages, with a means of automatic retention of the reserve turns of yarn

摘要

In the channel (3) for the reserve turns is at least one circumferential slot (5) having two or more projecting protrusions (7, 9) that lead into the slot from opposite sides of the slot and are staggered with respect to each other, so that the yarn enters the slot (5) being deflected by the protrusions (7, 9), and a retaining effect is thus exerted on the yarn of the reserve turns.