Lifting control for slidable presser foot

Details Lifting control for slidable presser foot Lifting control for slidable presser foot

1996-02-28

1997-01-28

Izaguirre, Ismael

Sewing

Elements

Presser devices

112235, D05B 2902, D05B 2908

Patent

active

055969410

ABSTRACT:
An arrangement in a sewing machine including a fabric feed dog (14; 44) for feeding a fabric to be sewn, and a vertically movable presser bar (12; 42) having a presser foot (13; 43; 63) and a presser spring (23; 53). The presser bar is actuatable by a power-driven actuator(19; 49) connected to the presser spring and slidable in parallel with the presser bar. The actuator is movable relative to the presser bar to adjust the presser foot pressure and operatively connected to the presser bar to raise and lower the presser foot during the sewing procedure in accordance with a predetermined program. In one embodiment, the presser foot (13, 43) is slidable to follow the fabric during the feeding step. In another embodiment, the presser foot (63) is provided with a top feed ruffler (69, 70) for forming tucks or pleats in the fabric being sewn.

REFERENCES:
patent: 494224 (1893-03-01), Philbrick
patent: 929686 (1909-08-01), Moffatt
patent: 2548361 (1951-04-01), Ginwright
patent: 3473497 (1969-10-01), Cash
patent: 3661102 (1972-05-01), Tice
patent: 4454830 (1984-06-01), Bennett

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