Patent ID: 8844454
Filing Date: 2014-09-30
Classification: D05B

Abstract:
1. A sewing and embroidery machine comprising: an activation device for a path and time related motion of a thread cutting and lead-in stitching unit ( 7 ) driven by a primary shaft ( 9 ) of the sewing and embroidering machine, a coupling sled ( 55 ) that guides a movement of the thread cutting and lead-in stitching unit, a thread brake ( 25 ) that controls an upper thread tension, a coupling member that is movable dependent upon a trigger signal, said coupling member inserts one of two switching levers ( 47 , 51 ) into a respective one of a link ( 41 ) for cutting a thread or a link ( 43 ) for lead-in stitching, dependent upon a rotational angle of an upper shaft of the sewing and embroidery machine, and thus drives the path and time related motion of the thread cutting and lead-in stitching unit ( 7 ) and the thread brake ( 25 ) in time with the thread cutting and lead-in stitching unit, and the coupling member ( 59 ) is engagable with an adjusting ring ( 61 ) on the primary shaft ( 9 ) by electrifying a magnet ( 65 ).