Sewing machine with a needle bar mounted in a swinging frame
US4981093A · kind A · utility
2Cited by
4References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 12, 1989 |
| Grant date | Jan 1, 1991 |
| Priority date | — |
| Expiry date | Apr 12, 2009 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD05B55/14
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A sewing machine has a needle bar, which is mounted in a frame, a continuously operating feed device for the workpiece, a looper which reciprocates transversely to the workpiece feed direction, a spindle which is mounted in the sewing machine arm, and a cam, which is disposed on the arm spindle in order to swing the frame in the workpiece feed direction. The frame is driven in dependence upon the movement of the arm spindle by way of a positively connected transmission. Two cams permit optimum adaptation of the swinging movement of the frame to the continuously moving workpiece.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.