Thread guiding system for sewing machine bobbin winders

US4211373A · kind A · utility

Assignee

• The Singer Company Limited · US

Inventors

• Reinhold Papajewski
• Helmar Holl · Karlsruhe, DE
• Ulrich Schmedtkord · Karlsruhe, DE

Key dates

• Filing date: Jan 22, 1979
• Grant date: Jul 8, 1980
• Expiry date: Jan 22, 1999

Classification

• Technology area (CPC D): Textiles; Paper
• CPC primary: D05B59/00
• WIPO field: Textile and paper machines
• WIPO sector: Mechanical engineering

Abstract

A thread guiding system for sewing machine bobbin winders in which the last thread constraining eyelet is positioned laterally centrally of the bobbin spindle and a plurality of smooth surface guide pins are positioned between the thread constraining eyelet and the bobbin with the axis of each pin parallel to that of the bobbin spindle. The pins exert no lateral influence on the thread which is allowed to move freely along the pins. With this construction the distance from the last thread constraining position to the bobbin is greatly reduced from that normally required for smoothly winding thread uniformly about the bobbin.