Oil discharge device of upper looper mechanism in overlock sewing machine
US6912964B2 · kind B2 · utility
0Cited by
4References
13Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 10, 2003 |
| Grant date | Jul 5, 2005 |
| Priority date | — |
| Expiry date | Jan 13, 2024 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD05B71/02
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
In an upper looper holder guide 7 through which an upper looper holder 12 penetrates, a first oil discharge hole 27 is opened in the edge at the upper end of a through-hole 11 and a second oil discharge hole 28 opened in the groove 26 and are branched off, the opening of the first oil discharge hole 27 contacts with the upper looper holder 12, and the opening of the second oil discharge hole 28 and groove 26 are exposed from a longitudinal hole 6 of an upper looper base 4 when the upper looper holder 12 reaches the top dead center or the bottom dead center. The oil discharge device is composed of a two-layer trochoid pump.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.