Patent ID: 6412728
Filing Date: 2002-07-02
Classification: B65H

Abstract:
A yarn reel having V-shape gradually narrowed slot cut with reverse fish scale shape rough surface and a yarn guiding direction, the yarn reel comprising:a V-shape wide slot, a v-shape middle-wide slot, a narrow slot and an elongated slot arranged in sequence with widths thereof gradually set smaller and smaller from the V-shape wide slot to the elongated slot on a peripheral surface of the yarn reel, the V-shape wide slot being cut to be an open angle having a guide slope at an upper slope thereof, the slots including cuts having a plurality of reverse fish scale shapes with a direction opposite to the yarn guiding direction to form rough surfaces on both sides of a lower slope of the V-shape wide slot; the v-shape middle-wide slot is located following the V-shape wide slot with a width about one fifth to one sixth of the V-shape wide slot; and the narrow slot includes the plurality of reverse fish scale shapes with the direction opposite to the yarn guiding direction to form the rough surfaces on both sides of a v-shape slope of the narrow slot.