STRUCTURE HIGH SPEED ZIGZAG STITCH INDUSTRIAL-USE SEWING MACHINE
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United States of America Patent
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-
Oct 29, 2002
Grant Date -
Oct 31, 2002
app pub date -
Apr 16, 2001
filing date -
Apr 16, 2001
priority date (Note) -
Granted
status (Latency Note)
Importance
Abstract
An improved structure high speed zigzag stitch industrial-use sewing machine in which a vertically extending columnar elevated material feed needle plate platform (Post Bed) structure is disposed below the needle holder of the sewing machine. The drive mechanism of the revolving shuttle and the material feed dog plate are situated in the interior section of the elevated material feed needle plate platform, with changes in the type of stitches sewn by the sewing machine governed by a pattern cam. As such, the elevated material feed needle plate platform (Post Bed) structure provides for wider applications than conventional level platform-type material feed needle plates which are incapable of easily sewing across concave, convex, and other irregular contours of objects being processed. The present invention is not only capable of various types of zigzag stitching, but also provides for the sturdier sewing and a more attractive appearance of finished objects, while increasing the value, product quality and productivity of sewing machines in this category of industrial equipment.
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