| 摘要 |
The invention consists in a circular crown shaped pressure disk (1), furnished with, on its external rim, jutting stirrup shaped, flexible elements (2) whose size makes them adhere, by eventually, inflecting, on the internal surface of the drum (7) within which the said disk is housed, on the internal rim it is equipped with winglets (3) and with flexible tabs (5) directed nearly tangentially in respect to the tubular trunk (8), placed at the centre of the drum (7), capable of stopping the rise of the bundle of coils so as to impede their knotting (between each other) and to help guiding the wire, as it is pulled to the outside of the drum and unwound from the bundle.
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