Sewing machine thread take-up lever
US4660482A · kind A · utility
6Cited by
3References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 17, 1986 |
| Grant date | Apr 28, 1987 |
| Priority date | — |
| Expiry date | Jan 17, 2006 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/18288
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A thread take-up lever in a sewing machine in which the driving cam disc of the take-up lever is mounted on the crankshaft driving the needle bar up and down. The driving cam disc is supported on one side while the spacing on the other side can be optimally utilized. This enables a correct position of the thread take-up movement.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.