Thread supplying device
US7059556B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 13, 2002 |
| Grant date | Jun 13, 2006 |
| Priority date | — |
| Expiry date | May 6, 2022 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD03D47/361
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A thread supplying device provided with a housing containing an electric motor wherein the stator is non-rotatingly mounted and the rotor is rotatingly mounted on a motor shaft. A thread guiding element is fixed to the motor shaft and a threader device which is fixed to the housing is also provided. When the motor shaft is in a set rotational position, the thread guiding element is physically associated with said threader device. A permanent magnet motor with pole cores provided with windings is integrated into the stator and permanent magnets are integrated into the rotor in such a way that the stator, rotor and the thread guiding element are arranged relative to the housing, in such a way that the motor shaft adopts the set position of rotation when the permanent magnet motor is devoid of electric current in a stable relative position of rotation, caused by magnetic forces, of the rotor in the stator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.