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US 6,131,842 AGranted
Yarn feeder with improved yarn travel
AssigneeMemminger-IRO GmbH
InventorHermann Schmodde
Life of this patent
Estimating the term…
Abstract
A yarn feeder, which has a yarn feed wheel connected to an electric motor for positive feeding of a yarn as needed, has a yarn travel path which is defined by yarn eyelets at an angle to the pivot axis of the yarn feed wheel that is greater than the sum of 90.degree. and an additional acute angle. This additional acute angle .alpha. is greater than the angle of inclination of a yarn lap on the yarn feed wheel in which adjacent windings contact one another. As a result, a smooth payout of the yarn on the yarn feed wheel is obtained.
Claims21
A yarn feeder for supplying yarn to a yarn-using station, comprising:
- a yarn feed wheel (6) rotatably supported about a pivot axis (7) and disposed in a yarn travel path (3), so that the yarn (2) can wrap around the yarn feed wheel;
- and
- a motor (9) coupled to the yarn feed wheel to drive the wheel, thereby feeding the yarn (2);
- wherein the yarn travel path (3), downstream of the yarn feed wheel (6), is arranged at an acute angle (.alpha.) other than zero relative to a plane (41), the pivot axis (7) being perpendicular to said plane,
- wherein the yarn travel path (3) has a first position (31), leading toward the yarn feed wheel (6), and a second portion (32), leading away from the yarn feed wheel (6), and that the first portion (31) is disposed in a plane that is parallel to a plane containing the second portion (32), and
- wherein a spacing between the planes is greater than a product of the maximum yarn thickness and a number of windings with which the yarn (2) wraps around the yarn feed wheel (6).
3 more elements
Dependencies are inferred from the claim text.