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.

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.

Abstract: The invention herein relating to an industrial-use sewing machine structure with transverse tube-shaped needle plate base for making high-speed herringbone stitch mainly consists of a structure of a horizontally oriented and vertically extended transverse tube-shaped fabric feed needle plate base disposed below the needle holder of the sewing machine and, furthermore, a drive mechanism with the drive revolving shuttle and the fabric feed tooth plate situated in the interior section for making variation in the type of stitch along with the style of the pattern cam of the sewing machine main body and for wider applications on sewing the objects being processed in the forms of tube, ring or arc, and is capable of not only increasing the sturdier sewing and attractive appearance of the objects being processed by making the variations of the herringbone stitches, but also enhancing the product quality and added value of the productivity of sewing machines in this category.