Control mechanism in a sewing machine for pattern and buttonhole sewing
US4553491A · kind A · utility
2Cited by
5References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 4, 1984 |
| Grant date | Nov 19, 1985 |
| Priority date | — |
| Expiry date | Sep 4, 2004 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD05B19/00
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A cam selecting drum which is loosely supported in punched out holes in the frame of a sewing machine is spring biased into stabilized indexed positions to prevent variable stitch formation, and an idler gear which is also loosely supported on said frame for engagement with a gear on said drum as well as a gear on a mode selecting dial is spring biased to provide a loose meshing relationship with the gear on the drum whereby a feeling of placement of the dial becomes evident in indexed positions of the drum.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.