Presser foot device for a sewing machine

Details Presser foot device for a sewing machine Presser foot device for a sewing machine

1998-05-07

2000-06-13

Izaguirre, Ismael

Sewing

Elements

Presser devices

D05B 2902

Patent

active

060735678

ABSTRACT:
The load which is applied during a period when a presser foot is retracted is reduced, and the time period required before the restart of the sewing operation is shortened.
A swing member which is swung in a predetermined range by a cam for driving a presser foot and fixed to the main shaft is coupled also with the presser foot through a link. The presser foot is vertically moved by the link mechanism in synchronization with the rotation of the main shaft. Joint movement direction controlling device is disposed. The device restricts the direction of a reciprocation locus of one joint of the link mechanism, and changes the movement direction of the reciprocation, thereby causing the second swing member to operate so as to vertically move the presser foot in a predetermined range, and the presser foot to be set in a raised state in which the presser foot is raised to a retraction position.

REFERENCES:
patent: 4285289 (1981-08-01), Bolldorf et al.
patent: 4915044 (1990-04-01), Kambara et al.

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