Sewing arm mechanism of embroidery machine
US7845295B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 20, 2007 |
| Grant date | Dec 7, 2010 |
| Priority date | — |
| Expiry date | Apr 2, 2029 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD05B69/32
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Disclosed is a sewing arm mechanism of an embroidery machine. Within the sewing arm mechanism, there are provided a needle bar vertical drive unit and cloth pressing member vertical drive unit for vertically moving a needle bar and a cloth pressing member, respectively, by using the rotational driving force of an upper shaft. The sewing arm mechanism is configured in such a manner that the needle bar drive reaction force exerted on the upper shaft by the driving the needle bar vertical drive unit, and the cloth pressing member drive reaction force exerted on the upper shaft by the driving of the cloth pressing member vertical drive unit act in opposite directions of each other, whereby the magnitudes of the reaction forces exerted on the upper shaft can be cancelled with each other.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.