Overlock sewing machine with mechanism for cutting broken threads
US4813363A · kind A · utility
3Cited by
3References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 23, 1987 |
| Grant date | Mar 21, 1989 |
| Priority date | — |
| Expiry date | Jun 23, 2007 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD05B73/12
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
An overlock sewing machine wherein a thread which breaks between the shuttle and the looping discs is allowed to bypass the loop stripping device and is advanced by the discs toward and against the cutting edge of a knife provided on one leg of the U-shaped thread guide which confines the looping discs. This prevents the discs from convoluting the broken thread onto the shaft which drives the discs.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.