Needle clamp arrangement for a sewing machine
US4476794A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | May 13, 1983 |
| Grant date | Oct 16, 1984 |
| Priority date | — |
| Expiry date | May 13, 2003 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD05B55/02
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A device for holding a sewing needle which has a cylindrical shank, an arcuate portion, and a flat wall portion, in a needle bar which has a longitudinally extending receiving groove with a flat interior receiving wall comprising a locking member. The locking member has a longitudinally extending bridge part with outwardly extending arms engageable around at least a portion of the circumference of the needle bar. The arms include an upper abutment arm extending outwardly of said bridge portion into the needle bar groove and defining a stop against which the top of the needle bar is engageable. The construction includes a lower abutment arm extending outwardly from the bridge engageable with an arcuate end over the arcuate portion of the shank so as to hold the flat portion of the shank of the needle on the flat interior receiving wall of the groove.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.