Sewing machine for hemming articles
US5005502A · kind A · utility
1Cited by
18References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 2, 1989 |
| Grant date | Apr 9, 1991 |
| Priority date | — |
| Expiry date | Jun 2, 2009 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD05B27/02
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
An automatic feeder unit for a twin or triple needle bottom cover stitch machine which allows hemmed garments to be chained off while being sewn automatically. The feed unit comprises a top feed conveyor coupled to a synchronizer which senses the speed of the main shaft of the sewing head to control the speed of the top feed conveyor in relation to the speed of the sewing head. Further a feed dog and throat plate assembly comprises an extended land area beyond the chaining finger and having a slot located therebeyond through which a feed dog protrudes during operation, to thereby retain the chain stitch during chaining off.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.