Thread chain sewing method and device for two-needle overlock sewing machine
US4777892A · kind A · utility
2Cited by
7References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 25, 1986 |
| Grant date | Oct 18, 1988 |
| Priority date | — |
| Expiry date | Jun 25, 2006 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD05B73/12
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A thread chain is prevented from hanging at an inner chain-off finger when it is turned back or rotated to the operator's side for holding and cutting. A needle thread, positioned at the front side of a lower looper, is guided by a needle thread restricting device, and a needle thread positioned on the back side of a lower looper is prevented from being hung on an inner chain-off finger by a thread chain guiding device provided at a throat plate so that enfolding back and tacking of the thread chain into the fabric material is performed well.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.