CNC controlled buttonhole sewing machine
US6684797B2 · kind B2 · utility
1Cited by
3References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 9, 2003 |
| Grant date | Feb 3, 2004 |
| Priority date | — |
| Expiry date | Apr 9, 2023 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD05B3/08
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A buttonhole sewing machine comprises work piece clamps with a pneumatically actuated displacement drive for displacement relative to each other of the work piece clamps from an initial position of spread by a length of spread into a final position of spread. Only the first work piece clamp is displaceable relative to the x-y table. The displacement of the first work piece clamp is defined between two stop positions. A control unit stores data for triggering an x drive for reversed displacement of the x-y table by half the given length of spread.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.