Control system for sewing machine

Details Control system for sewing machine Control system for sewing machine

1980-11-26

1983-09-13

Nerbun, Peter P.

Sewing

Special machines

Darning

112272, 112275, D05B 1900

Patent

active

044035586

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, 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 one embodiment, a window is set up around the stitch count at which terminal countdown initiates to avoid spurious signals. In another embodiment, momentary toggles of the sensors (40) are ignored so that an even wider range of sizes can be sewn with the same taught program.

REFERENCES:
patent: 3750603 (1973-08-01), Martin
patent: 3799084 (1974-03-01), Furnari
patent: 3827381 (1974-08-01), Baanstra et al.
patent: 4195582 (1980-04-01), Novick et al.
patent: 4226197 (1980-10-01), Pollmeier et al.

Affiliated with

Also associated with

Rating

Control system for sewing machine 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 sewing machine, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Control system for sewing machine will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1725077