Needle driving apparatus for sewing machine
US4790253A · kind A · utility
2Cited by
5References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 29, 1988 |
| Grant date | Dec 13, 1988 |
| Priority date | — |
| Expiry date | Jan 29, 2008 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD05B55/14
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A needle driving apparatus for a sewing machine for allowing oscillatory movement of a needle bar through the motion of a lever which oscillates up and down interlocking with a main shaft, wherein a rectangular slider is rotatably supported by a fork provided on the end of the oscillating lever. On the upper end of the needle bar is fixed a guide member having a guide groove which is orthogonal with the needle bar and slidably fitted to the fork of the oscillating lever, and the rectangular slider is fitted in the guide groove of the guide member.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.