Patent ID: 6568620
Filing Date: 2003-05-27
Classification: D04B

Abstract:
A yarn feeder for positive feeding of yarns comprising:a yarn feed wheel that is rotatably supported about a pivot axis on a carrier, a drive mechanism for rotatably driving the yarn feed wheel, said yarn feed wheel comprising a single piece that includes a laterally extending yarn inlet region, a laterally extending yarn storage region, and a laterally extending yarn payout region, said yarn inlet region having a circular cross section at each lateral point that is concentric to the pivot axis with a diameter which decreases along the pivot axis in a lateral direction toward the storage region, said yarn payout region having a circular cross section at each lateral point that is concentric to the pivot axis with a diameter which increases along the pivot axis in a lateral direction away from the storage region, said storage region having contact regions for the yarn that are spaced apart from one another, said contact regions of the storage region of the yarn feed wheel each having a cross section which at least in some portions deviates from a circle that is concentric with the pivot axis, and said yarn inlet region, yarn storage region, and yarn payout region merge with one another without shoulders or steps which can impede lateral movement of yarn from the inlet region to the storage region and from the storage region to the outlet region.