Control system for sewing machine

Sewing – Special machines – Darning

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

112275, D05B 1900

Patent

active

043599532

ABSTRACT:
A semiautomatic sewing system (10) comprises a sewing machine (12), a drive unit (42) including a variable speed motor and encoder for counting stitches sewn, material edge sensors (40) mounted in spaced relationship in front of the needle (22) of the sewing machine, and a microprocessor controller (51) coupled to the sewing machine controls. Accurate control of seam lengths and end points is achieved by initiating countdown of a variable preprogrammed number of final stitches responsive to material edges detected by the sensors (40) only when the stitch count falls within a predetermined window of values so that inaccuracies from stitch counting are limited to a small portion of the overall seam length. If the sensors (40) do not detect a material edge within the window of stitch values, the sewing system (10) reverts to pure stitch counting to determine seam length.

REFERENCES:
patent: 3613608 (1971-04-01), Hinerfeld
patent: 3750603 (1973-08-01), Martin
patent: 3827381 (1974-08-01), Baanstra et al.
patent: 3928752 (1975-11-01), Darwin
patent: 3970014 (1976-07-01), Chano et al.
patent: 4051794 (1977-01-01), Herzer et al.
patent: 4074640 (1978-02-01), Chano et al.
patent: 4092937 (1978-06-01), Landau, Jr. et al.
patent: 4100865 (1978-07-01), Landau, Jr. et al.
patent: 4104976 (1978-07-01), Landau, Jr. et al.
patent: 4107592 (1978-08-01), Bayer
patent: 4108090 (1978-08-01), Landau, Jr. et al.
patent: 4133275 (1979-01-01), Herzer et al.
Vol. 3, No. 3, Journal of the Apparel Research Foundation (1969), pp. 1-32.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

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

     

Profile ID: LFUS-PAI-O-1874401

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.