Hook system for a sewing machine
US8757075B2 · kind B2 · utility
0Cited by
10References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 8, 2012 |
| Grant date | Jun 24, 2014 |
| Priority date | — |
| Expiry date | Apr 5, 2032 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD05B57/16
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
For the continuous drive of a hook of a sewing machine, two drive cams (17) alternately engage in the back of the hook. During the passing of the upper thread loop, the respective drive cam (17) on which the thread would get hung up is out of engagement. The hook is situated in a conical hook race guide and is held therein by magnets.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.