Sewing machine with dust removing device
US6260494A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 5, 2000 |
| Grant date | Jul 17, 2001 |
| Priority date | — |
| Expiry date | May 5, 2020 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD05D2305/50
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A sewing machine with a dust removing device prevents trouble such as faulty sewing caused when dust including waste thread and waste cloth is collected under a throat plate, in performing, for example, interlock stitch sewing by an overlock sewing machine. Specifically, an upward air introducing path is provided, through which the cooling airflow generated by a cooling fan actuated during sewing operation is fed to an air introducing path for oil cooling underneath a lubricating oil storage part, and, through which the cooling airflow passing through the air introducing path for oil cooling is blown up from the underside of a frame to a needle location of the throat plate, in order to blow up the dust. An opening of one end of a suction pipe for collecting dust attached to the frame is disposed sidewise above the throat plate. The self-cleaning action obtained by effectively utilizing the airflow from the cooling fan for cooling lubricating oil, enables to prevent trouble such as faulty sewing due to the collected dust, and prevent dust from widely scattering around the upside of the throat plate, thereby to maintain working environment hygienic.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.