Sewing machine

Details Sewing machine Sewing machine

2011-05-24

2011-05-24

Izaguirre, Ismael (Department: 3765)

Sewing

Elements

Presser devices

Reexamination Certificate

active

07946234

ABSTRACT:
A sewing machine includes a needle, a needle bar which supports the needle, an upper feeding foot operable to feed the workpiece interlockingly with an up and down movement of the needle bar, a presser foot operable to press the workpiece, a holding bar which supports the presser foot, an actuator including an operating member operable to be changed to a first state, a second state or a no-load state, and a connecting portion which couples the operating member and the holding bar. The holding bar is constantly biased downward by a biasing force. The actuator moves the presser foot up against the first biasing force when the operating member is in the first state, and moves the presser foot down when the operating member is in the second state.

REFERENCES:
patent: 4341172 (1982-07-01), Thompson
patent: 4449464 (1984-05-01), Porter
patent: 4981094 (1991-01-01), Stapel et al.
patent: 5309854 (1994-05-01), Mulcahey et al.
patent: 5678502 (1997-10-01), Mulcahey et al.
patent: 6499415 (2002-12-01), Grant et al.
patent: 2004-57822 (2004-02-01), None

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