Patent · US Expired

Yarn draw off tube for open-end spinning unit

US4481766A · kind A · utility

6Cited by

6References

4Claims

0Family size

Assignee

Kabushiki Kaisha Toyoda Jidoshokki Seisakusho · JP

Inventors

Tadanori Kurushima · Kariya, JP
Kiyoshi Takeshita · Kariya, JP
Kazuo Kamiya · Nishio, JP

Key dates

Filing date	Dec 29, 1982
Grant date	Nov 13, 1984
Priority date	—
Expiry date	Dec 29, 2002

Classification

Technology area (CPC D)Textiles; Paper
CPC primaryD01H4/40
WIPO fieldTextile and paper machines
WIPO sectorMechanical engineering

Abstract

A yarn draw off tube for an open-end spinning unit which improves the twist transmission to a fiber ribbon in a spinning rotor. The yarn draw off tube is provided with a yarn inlet on the top wall thereof and a yarn outlet on the lower side wall thereof, and the yarn inlet is eccentric from the center in a direction opposite to the yarn outlet. In the spinning operation, a twist imparted to a yarn drawn off from the spinning rotor can smoothly be transmitted to the root portion thereof. Thereby, yarn breakage is restrained and a yarn of good appearance and strength can be obtained.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.