Sewing machine

Details Sewing machine Sewing machine

1997-11-18

1998-10-27

Nerbun, Peter

Sewing

Special machines

Embroidering

112119, 112458, 112319, 36447009, D05C 502, D05B 1100, D05B 2100

Patent

active

058265260

ABSTRACT:
A sewing machine includes a feed dog disposed in a bed of a main body to be displaced between positions above and below a top face of the bed in a normal state to feed a workpiece cloth, and a control device. When a presser foot is vertically moved during sewing, the control device judges that the feed dog is in the drop feed state. The vertical movement of the presser foot is detected on the basis of an output of a cloth thickness sensor which detects the height of the presser foot. When the feed dog is in the drop feed state, the control device judges whether a stitch pattern selected by a user is suitable for formation of stitches in the drop feed state of the feed dog. When the stitch pattern is unsuitable, information to that effect is provided, and the sewing is stopped.

REFERENCES:
patent: 4368683 (1983-01-01), Takenoya
patent: 4554879 (1985-11-01), Eguchi
patent: 4558142 (1985-12-01), Peck

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