Sewing machine having presser foot lifting device for adjusting

Details Sewing machine having presser foot lifting device for adjusting Sewing machine having presser foot lifting device for adjusting

1994-04-14

1995-10-31

Nerbun, Peter

Sewing

Elements

Presser devices

D05B 2902

Patent

active

054619971

ABSTRACT:
A sewing machine of the type having an electronic control unit is provided with an arrangement comprising a needle mechanism with a needle bar, a presser bar (12) provided with a presser foot (13) and actuated by a resilient means (22) to provide a controllable presser foot pressure on the cloth (28) to be sewn, and a lifting device for adjusting the presser foot between its operative position and an inoperative position spaced from the cloth. According to the invention, the lifting device comprises a power driven lifting lever (15) coacting with the presser bar (12) for adjusting the presser foot (13) between said two positions and a third, operative position, in which the presser foot pressure is relieved, and the lifting lever (15) is operatively connected to said resilient means (22) for controlling the presser foot pressure.

REFERENCES:
patent: 3473497 (1969-10-01), Cash
patent: 4363281 (1982-12-01), Reinke
patent: 4706587 (1987-11-01), Shiomi
patent: 5080031 (1992-01-01), Suzuki et al.
patent: 5144900 (1992-09-01), Takahashi
patent: 5331909 (1994-07-01), Tajima et al.

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