Thread exchanger device for sewing machine
US5775243A · kind A · utility
8Cited by
4References
2Claims
0Family size
Inventors
Key dates
| Filing date | Sep 18, 1996 |
| Grant date | Jul 7, 1998 |
| Priority date | — |
| Expiry date | Sep 18, 2016 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD05B59/04
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
In a thread exchanger device for a sewing machine, a rotary cassette has a plurality of bobbin casings along a circumferential direction thereof. A cassette driver is provided to rotationally drive the rotary cassette to select one of the plurality of bobbin casings so as to move it to an exahangeable position. A chuck is provided to take the bobbin casing off the rotary cassette on the one hand, and attaching to the rotary cassette on the other hand. A chuck driver is provided to alternately move the chuck toward a rotary bobbin frame, and move it toward the exchangeable position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.