Drive and control device for sewing machines, automatic sewing i

Details Drive and control device for sewing machines, automatic sewing i Drive and control device for sewing machines, automatic sewing i

1983-07-26

1986-07-29

Nerbun, Peter

Sewing

Special machines

Darning

112275, 112272, 112315, D05B 1900, D05B 2722

Patent

active

046025774

ABSTRACT:
A drive and control device for sewing machines, automatic sewing installations, and the like, with a recognition unit which responds for the purpose of end recognition when the sewing tools have approached a predetermined spacing from the desired seam end. The drive and control device also includes a preselection stitch counting unit, which can be triggered by means of the recognition unit, for the presetting of a predetermined number of remaining stitches still to be executed subsequently to the end recognition, and a correction unit for the performance of a stitch correction in dependence on the respective needle position at the instant of end recognition. The correction unit serves for automatically varying the length of at least one of the remaining stitches.

REFERENCES:
patent: 4381719 (1983-05-01), Goldbeck
patent: 4403558 (1983-09-01), Martell et al.
patent: 4404919 (1983-09-01), Martell et al.
patent: 4495877 (1985-01-01), Willenbacher

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