Patents Assigned to Fritz Gegauf Aktiengesellschaft Bernina-Machmaschinenfabrik
  • Patent number: 4389952
    Abstract: A holder (3) for replacing the presser foot of a sewing machine comprising a foot plate (3a) attached to a presser bar (1) of the sewing machine (2), and a presser foot sole (8) operatively associated with the holder and being supported in a pendulating and vertically resilient fashion. A fixed blade (5) is adjustably mounted to the foot plate (3a) of the holder (3). A movable blade (9) is fashioned as a two-armed lever and is pivotably supported in a vertical plane. The movable blade (9) operatively engages the lower arm (13a) of a two-armed intermediate toggle joint with a carrier bolt (13). The other arm (13b) of the toggle joint has a curved cam contour (14). A control pin (15) is guided in the curved path of the cam contour (14), said pin being disposed on a control lever (16) supported (16a) at one end by the holder (3). The other end of the control lever is provided with a fork (6a) at the needle bar (6).
    Type: Grant
    Filed: June 25, 1981
    Date of Patent: June 28, 1983
    Assignee: Fritz Gegauf Aktiengesellschaft Bernina-Machmaschinenfabrik
    Inventors: Ernst Dreier, Richard Hoss