Overlocking sewing machine and method for performing overlock se

Details Overlocking sewing machine and method for performing overlock se Overlocking sewing machine and method for performing overlock se

1990-08-22

1992-08-04

Nerbun, Peter

Sewing

Stitch forming

Overseaming

1122691, 112199, 112288, D05B 120, D05B 6500

Patent

active

051349485

ABSTRACT:
An overlock sewing machine having a loop spreading member which provides a retracted position and an operative position. In the retracted position, the loop spreading member is moved away from one side of needle hole slots, which one side being positioned farther from an edgeline of a workpiece. In the operative position the loop spreading member is engageable with a chain and the chain is insertable over the outer tongue upon shifting of the chain portion located at its needle side toward a workpiece feed-in side. The sewing machine further includes drive means connected to the loop spreading member for moving the loop spreading member from its retracted position to the operative position prior to a shifting operation of the chain toward the workpiece feed-in side with respect to positions of the needles.

REFERENCES:
patent: 4480562 (1984-11-01), von Hagen et al.
patent: 4984526 (1991-01-01), Ide et al.

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