Edge tracing sewing machine

Details Edge tracing sewing machine Edge tracing sewing machine

1990-05-24

1991-08-27

Nerbun, Peter

Sewing

Stitch forming

Feeding work material

112153, 112456, D05B 3510, D05B 302

Patent

active

050424092

ABSTRACT:
An edge tracing sewing machine includes a reciprocable needle bar having a needle at a lower end, a forward feed driving device for feeding a work fabric in a sewing direction, a lateral feed driving device for feeding the work fabric in a lateral direction perpendicular ot the sewing direction, a fabric-edge position detector, a tracing width setting device, and a control device. The control device determines a lateral feed amount based on signals from the fabric-edge position detector and the tracing width setting device. The control device operates the lateral feed driving device plural times until the work fabric is fed by the determined lateral feed amount by the lateral feed driving device, if the determined laterla feed amount is greater than a maximum lateral feed pitch of the lateral feed driving device.

REFERENCES:
patent: 4664048 (1987-05-01), Naganuma et al.
patent: 4823716 (1989-04-01), Nakashima
patent: 4827858 (1989-05-01), Hurie et al.
patent: 4869189 (1989-09-01), Horie et al.
patent: 4966090 (1990-10-01), Tanaka et al.
patent: 4967674 (1990-11-01), Rohr et al.

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