B - Operations – Transporting – 65 – H
Patent
B - Operations, Transporting
65
H
B65H 51/22 (2006.01) D04B 15/48 (2006.01)
Patent
CA 2343271
The invention relates to a yarn feeder (1) which comprises a yarn feeding wheel which is preferably made of a ceramic material or coated with an equivalent substance. Owing to the materials used and/or its shape the yarn feeding wheel presents improved continuous service properties. Said shape and/or material are highly wear-resistant. This is achieved by ceramic surfaces and/or the combination of a conical, continuous yarn inlet surface (24) with strip-shaped support surfaces (25) contiguous thereto in the yarn storage area (26), and a continuous, i.e. uninterrupted, surface in the yarn outlet area. The surfaces are configured such that on its way from the inlet area to the outlet area the yarn moves across the corresponding surfaces (24, 25, 36) along its entire axial path. The strip-shaped bearing or support surface for the yarn (2) in the yarn storage area is obtained by shaping the yarn feeding wheel (17) accordingly in said yarn storage area. Openings or slits or such like in the yarn feeding wheel are not required but can be provided for.
Un appareil fournisseur de fil (1) présente une canette réalisée, de préférence, en céramique ou recouverte d'une matière correspondante. Grâce à son matériau/ou à sa forme, la canette présente des propriétés de service continu améliorées. La géométrie et/ou la matière est/sont peu sensibles à l'usure. Cela est obtenu par des surfaces en céramique et/ou l'association d'une surface d'insertion du fil (24) conique continue comprenant des surfaces support (25) en stries adjacentes dans la zone de stockage du fil (26) et une surface continue, c'est-à-dire ininterrompue dans la zone de sortie du fil. Les surfaces sont formées de telle façon que, dans son trajet entre la zone d'introduction et la zone de sortie, le fil recouvre les surfaces correspondantes (24, 25, 36) sur la totalité du trajet axial. L'appui en stries ou le support du fil (2) dans la zone de stockage du fil est réalisé par la conception correspondante de la zone de stockage du fil de la canette (17). La canette ne nécessite ni trous, ni fentes ou équivalent mais peut en être pourvue.
Lampprecht Alfred
Leins Eberhard
Schmodde Hermann
Fetherstonhaugh & Co.
Memminger-Iro Gmbh
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