Forward and reverse fabric feed control device with feed control

Details Forward and reverse fabric feed control device with feed control Forward and reverse fabric feed control device with feed control

1997-12-19

1999-03-02

Izaguirre, Ismael

Sewing

Special machines

Buttonhole

112316, 112462, 112323, D05B 2702, D05B 2722, D05B 306

Patent

active

058757244

ABSTRACT:
A fabric feeding device for a sewing machine, including a horizontally and vertically reciprocable feed dog, a feed control cam member with a forward and a reverse feed cam for controlling forward and reverse feed distances of the feed dog, a manually operated feed adjusting member for operating the cam member, a control plate operated by the cam member for changing the angle of a feed regulator for adjusting the fabric feed distances, an auxiliary feed cam member operated by a manually operated buttonhole stitching pattern selector member, an auxiliary feed plate positioned by the auxiliary feed cam member and cooperating with the feed control cam member to move the control plate, a buttonhole reverse feed auxiliary cam member operated by the feed adjusting member, and a buttonhole fine feed adjusting lever rotatably supported by a manually operated buttonhole fine feed adjusting masher and positioned by the buttonhole reverse feed auxiliary cam member for positioning the auxiliary feed plate, wherein a small-feed part of the reverse feed cam is shaped so as not to disturb positioning of the control plate by the auxiliary cam member, buttonhole fine feed adjusting lever and auxiliary feed plate.

REFERENCES:
patent: 3108555 (1963-10-01), Engel
patent: 3636900 (1972-01-01), Rogers et al.
patent: 3742881 (1973-07-01), Heine et al.
patent: 3766871 (1973-10-01), Mastuda et al.
patent: 4577575 (1986-03-01), Stevens et al.

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