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US 5,094,068 AGranted
False twister for yarn
AssigneeMurata Kikai Kabushiki Kaisha
InventorOsamu Hirao
Life of this patent
Estimating the term…
Abstract
A yarn false twister in which an endless belt an a first rotary member are disposed across each other to constitute a nip point at which a yarn is twisted, and a second rotary member, on which the yarn is wound after the nipping thereof so that the upstream and downstream portions of the wound yarn cross in contact with each other, is provided coaxially with the first rotary member so that the second rotary member can be rotated independently of the first rotary member.
Claims7
A false twister for a yarn, comprising:
- an endless belt opposingly arranged with a first rotary member, the endless belt and first rotary member creating a nip point at which the yarn is nipped,
- a shaft for rotatably supporting the first rotary member, and
- a second rotary member, on which the yarn is wound after being nipped, wherein the yarn includes portions upstream and downstream of the second rotary member, the yarn being wound on the second rotary member so that the upstream and downstream portions of the yarn cross in contact with each other, wherein the second rotary member is supported by the shaft and is provided coaxially with the first rotary member so that the second rotary member can be rotated independently of the first rotary member.
A draw false twisting machine comprising:
- an upstream feed roller and a downstream feed roller for supporting a yarn so that the yarn receives a prescribed tensile force by which the yarn can be elongated,
- a false twister, disposed between the upstream and downstream feed rollers, for providing a false twist to the yarn,
- a heater, disposed between the upstream and downstream feed rollers, for thermally fixing the yarn. wherein the false twister includes an endless belt and a first rotary member opposingly arranged so as to create a nip point at which the yarn is nipped, the first rotary member being rotatably supported by a shaft;
- and
- a second rotary member on which the yarn is wound after the nipping thereof so that portions of the yarn cross in contact with each other on a surface of the second rotary member, the second rotary member being supported by a shaft and being provided coaxially with the first rotary member so that the second rotary member can be rotated independently of the first rotary member.
2 more elements
Dependencies are inferred from the claim text.