AUTOMATISCHE EINSTELLVORRICHTUNG FUER DEN OBEREN TRANSPORTEUR EINER STEPPMASCHINE

An upper feed dog automatic regulator for an overlock machine has an upper feed dog divided into a front part and a rear part. The greatest lower bound in a locus of motion of the upper feed dog varies automatically in response to the thickness of fabric being sewn so as to avoid uneven material fee...

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Hauptverfasser: MATSUMOTO, FUMIO, TAKATSUKI, OSAKA, JP, ISHIHARA, KEIICHI, KAWANISHI, HYOGO, JP
Format: Patent
Sprache:ger
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Beschreibung
Zusammenfassung:An upper feed dog automatic regulator for an overlock machine has an upper feed dog divided into a front part and a rear part. The greatest lower bound in a locus of motion of the upper feed dog varies automatically in response to the thickness of fabric being sewn so as to avoid uneven material feed, puckering between the front and rear upper feed dogs, and other sewing troubles.