Sewing – Special machines – Darning
Patent
1981-06-29
1983-09-20
Nerbun, Peter P.
Sewing
Special machines
Darning
1122621, 112315, 112272, D05B 1900
Patent
active
044049196
ABSTRACT:
An adaptive semiautomatic sewing system (10) comprises a sewing machine (12), a drive unit (42) including a variable speed motor and encoder for counting stitches sewn and for sensing the rotation of the motor, at least one material edge sensor (40) mounted ahead of the needle (22) of the sewing machine, and a microprocessor controller (51) coupled to the sewing machine controls. The system (10) has manual, teach and auto modes of operation. In the teach mode, control parameters for each seam are stored as the operator sews the initial piece. Accurate control of seam lengths and end points is achieved by initiating countdown of a variable number of final stitches responsive to detection of the material edges by the sensors (40). In dependence upon the amount of the stitch which has been sewn upon edge detection, the reverse lever (17) is moved against stop member (13) in order to reduce the length of the last stitch sewn in order to improve the accuracy of the seam end point.
REFERENCES:
patent: 3808995 (1974-05-01), Dobner et al.
patent: 4154179 (1979-05-01), Arnold
patent: 4226197 (1980-10-01), Pollmeier et al.
patent: 4359953 (1982-11-01), Martell et al.
Isett Don D.
Leslie Elmer N.
Martell Charles R.
Treadwell Stephen S.
Microdynamics, Inc.
Mills Jerry W.
Nerbun Peter P.
LandOfFree
Control system for providing stitch length control of a sewing m does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Control system for providing stitch length control of a sewing m, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Control system for providing stitch length control of a sewing m will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-583457