公开(公告)号：US4953484A

公开(公告)日：1990-09-04

申请号：US355677

申请日：1989-05-23

申请人： Hiroaki Fukao ,  Teruhiko Ohkita ,  Nobusuke Nagasaka ,  Tateo Ueno

发明人： Hiroaki Fukao ,  Teruhiko Ohkita ,  Nobusuke Nagasaka ,  Tateo Ueno

IPC分类号： D05B1/20 ,  D05B73/12

CPC分类号： D05B1/20 ,  D05B73/12

摘要： In this overedge sewing machine, when stitch width is adjusted, an adequate excess thread proportional to the adjusted stitch width is obtained. An overedge stitch can be steadily sewn without excessive stitch tension, even when the stitch width increases. By operating one adjustment member, the position of the lower knife holder and the stitch-support member can be easily adjusted, and the stitch width can thus be easily altered.