DEVICE FOR CONTROL OF DARNING WIDTH FOR SEWING MACHINE Russian patent published in 2010 - IPC D05B3/00 

FIELD: textiles, paper.

SUBSTANCE: device for control of darning width for sewing machine comprises holder of lower knife, which rests on frame of sewing machine so that position of lower knife holder in process of displacement may be controlled in direction, which is perpendicular to direction of cloth feed. Thread-shifting element establishes width of darning by means of thread gripping at its tip near area of stitch formation, and holder of thread-shifting element is supported with frame of sewing machine so that position of thread-shifting element in process of displacement may be controlled in direction, which is perpendicular to direction of cloth feed. Facilities are also provided for adjustment of thread-shifting element for control of thread-shifting element position in process of displacement, as well as facilities for adjustment of lower knife holder for adjustment of lower knife holder position in process of displacement to position, which goes beyond position, corresponding to outer limit position of thread-shifting element.

EFFECT: development of device for adjustment of darning width for sewing machine, which may position thread-shifting element separately from lower knife in direction, which is perpendicular to direction of cloth feed.

3 cl, 6 dwg