Eyelet buttonhole sewing machine

摘要

The eyelet buttonhole sewing machine, to stitch an eyelet buttonhole seam (70), has a thread deflection unit at the thread tensioning and cutting zone, with a swing deflector (43) moving between rest and working positions. In the working position it moves the leading section of the looper thread, held in the thread clamp (53) at a trailing thread section (67), away from the counter blade (22) of the thread cutter.