Feed device for sewing machine

Details Feed device for sewing machine Feed device for sewing machine

1993-01-21

1994-05-24

Crowder, Clifford D.

Sewing

Stitch forming

Feeding work material

112314, D05B 2704

Patent

active

053139011

ABSTRACT:
A feed device for a sewing machine incorporates an upper feed dog above a throat plate and a lower feed dog below the throat plate and conveys material fabrics to a needle drop point by way of sandwiching the material fabrics between the upper and lower feed dogs. The feed device incorporates an energizing member for energizing the upper feed dog in the direction of the throat plate and controls the sandwiching force between the upper and lower feed dogs by constraining the energizing force generated by the energizing member.

REFERENCES:
patent: 5113773 (1992-05-01), Klundt
patent: 5138962 (1992-08-01), Klundt

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