Patent ID: 8640639

Claim:
A method for cutting a lower and at least one upper thread at an end of a sewing or embroidering process on a sewing machine having a needle, a stitching plate with a stitching hole, and a CB-hook-type device or a CB-hook, comprising the following steps: a) after creation of a last stitch of a seam the needle ( 11 ) approaches a surface of a material being sewn or embroidered and the stitching plate ( 3 ), b) deflecting the lower thread ( 9 ) by at least one control edge ( 19 a , 19 b , 19 c ) of a thread catcher ( 19 ) between a thread exit opening and a bobbin case ( 15 ) and the stitching hole ( 13 ), ejecting the lower thread ( 9 ) by the at least one control edge ( 19 a , 19 b , 19 c ) so that the lower thread glides into a thread receiver ( 21 ) at a thread catcher ( 19 ) while the needle ( 11 ) pierces the material, d) the thread catcher ( 19 ) reaches an end position and the needle ( 11 ) reaches a lower end position, e) engaging the upper thread ( 7 ) by a hook tip and spreading a needle thread ( 7 a ) and a material thread ( 7 b ), f) while the needle ( 11 ) moves back upwards moving the thread catcher ( 19 ) backwards and pulling back the lower thread ( 9 ) caught in the thread receiver ( 21 ) as well as pulling back the upper thread ( 7 ) also engaged by the thread catcher ( 19 ), g) simultaneously pulling the needle thread ( 7 a ) forward by a thread lever and subsequently severing the upper ( 7 ) and the lower thread ( 9 ), h) the thread catcher ( 19 ) reaches an initial position and pulling a loose end of the upper thread ( 7 ) using the thread lever out of the thread cutting unit ( 5 ), and i) concluding a cycle and pulling the upper ( 7 ) and the lower thread ( 9 ) forward to a required length for lead-in sewing or lead-in embroidering.