Yarn feed device having a weight-relieving stop element
AssigneeMemminger-IRO GmbH
InventorsRichard Kaufmann, Herman Schmodde
Life of this patent
Estimating the term…
Abstract
A yarn feeder having one or more yarn feeler levers which rest on the yarn with a force which in the desired position of the lever, i.e. with a correct yarn run, is small. If the lever is pivoted out because the yarn tension is decreased or the yarn has broken, the force with which the lever rests on the yarn increases. This is achieved in the illustrated yarn feeler by a relief device which partially compensates for the weight of the lever and provides a compensating force as a function of the pivot angle. The compensating force preferably decreases with an increase in further pivotal movement of the lever.
Claims20
A yarn feeder (1) for feeding at least one yarn to a textile machine comprising,
- a base support (3),
- a lever (16) supported on said base support (3) for a range of pivotal movement about a horizontal pivot axis (18),
- said lever having an end remote from the pivot axis (18) in contact with a yarn (2) under the force of its own weight,
- a relief device (31) connected to said lever (16) including a spring element (31) for reducing the weight of the lever (16) on the yarn (2) at least during a portion of its pivot range such that the lever (16) rests on the yarn with a reduced force less than its own weight.
A yarn feeder (1) for feeding at least one yarn to a textile machine comprising,
- a base support (3),
- a lever (16) supported on said base support (3) for a range of pivotal movement about a horizontal pivot axis (18),
- said lever having an end remote from the pivot axis (18) in contact with a yarn (2) under the force of its own weight,
- a relief device (31) connected to said lever (16) including a spring element (31) for reducing the weight of the lever (16) on the yarn (2) by a first amount during a first pivot range of movement of the lever such that the lever (16) rests on the yarn with a reduced force less than its own weight, and said relief device (31) being operable for reducing the weight of the lever (16) on the yarn (2) by a second amount different from the first amount during pivotal movement of the lever (16) in a second pivot range different from the first pivot range.
A yarn feeder (1) for feeding at least one yarn to a textile machine comprising,
- a base support (3),
- a lever (16) supported on said base support (3) for a range of pivotal movement about a horizontal pivot axis (18),
- said lever having an end remote from the pivot axis (18) in contact with a yarn (2) under the force of its own weight,
- a relief device (31) connected to said lever (16) including a spring element (31) for reducing the weight of the lever (16) on the yarn (2) during a first pivot range of movement of the lever such that the lever (16) rests on the yarn with a reduced force less than its own weight, and said relief device (31) being operable for increasing the force of the lever (16) on the yarn (2) during pivotal movement of the lever (16) in a second pivot range different from the first pivot range such that the lever (16) rests on the yarn (2) with a force greater than its own weight.
A yarn feeder (1) for feeding at least one yarn to a textile machine comprising,
- a base support (3),
- a lever (16) supported on said base support (3) for a range of pivotal movement about a horizontal pivot axis (18),
- said lever having an end remote from the pivot axis (18) in contact with a yarn (2) under the force of its own weight,
- a relief device (31) connected to said lever (16) including a spring element (31) for reducing the weight of the lever (16) on the yarn (2) by a first amount during a first pivot range of movement of the lever such that the lever (16) rests on the yarn with a reduced force less than its own weight, and said relief device (31) being operable for reducing the weight on the lever (16) on the yarn (2) by a second amount different from the first amount during pivotable movement of the lever in a second pivot range different from the first pivot range.
Dependencies are inferred from the claim text.