Switching mechanism for electronically controlled sewing machine

Details Switching mechanism for electronically controlled sewing machine Switching mechanism for electronically controlled sewing machine

1984-01-06

1986-01-14

Nerbun, Peter

Sewing

Stitch forming

Zigzag

D05B 302

Patent

active

045639663

ABSTRACT:
An electronic control for a sewing machine, which electronically stores needle amplitude amounts and feed amounts as pattern signals, including a control motor having an output shaft with a center, an output arm affixed to the output shaft of the control motor and a guide pin connected with the output arm and a guide cam disposed at a predetermined distance to the control motor and having first and second grooves being arc-shaped and having different radii from the center of the output shaft of the control motor so as to provide both normal and reduced amounts of feed.

REFERENCES:
patent: 4167912 (1979-09-01), Sedlatschek
patent: 4183314 (1980-01-01), Sato
patent: 4299180 (1981-11-01), Kume et al.
patent: 4342271 (1982-08-01), Socha

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