BIASING MECHANISM FOR SEWING MACHINE PRESSER FOOT

摘要

A sewing machine comprises a presser foot; a drive shaft operably connected to the presser foot which imparts periodic upward movement to the presser foot; and a biasing mechanism operably connected to the presser foot which normally biases the presser foot into a downward position, the biasing mechanism comprising a toggle link having a pivot, a resilient element operably connected to the toggle link on one side of the pivot and the presser foot operably connected to the toggle link on the other side of the pivot.