A needle assembly for a stitching machine comprises a stitching jig comprising a needle holder, a needle clamp hoop and a fixing jig. The needle holder has needle sockets to hold a plurality of needles. The needle clamp hoop is connected to the needle holder to retain needles in the sockets. The fixing jig is connected to the needle clamp hoop to couple with a reciprocating bar of the stitching machine. A method for manufacturing an article of footwear upper comprises laying out a first sheet of material; positioning a second sheet of material to overlap with the first sheet of material at an overlap; positioning a felt material adjacent the overlap so that the second sheet of material is between the first sheet of material and the felt material; and felting the felt material to draw fibers of the felt material through the first and second sheets of material.

An upper decoration mechanism and a sewing machine without requiring an operation of detaching the upper decoration mechanism from the sewing machine without reducing workability even when performing a double chain stitch not using a decoration thread. The upper decoration mechanism provided on a sewing machine includes an expansion retraction mechanism configured to switch a spreader between an expanded state where the spreader cooperates with needles for performing an upper decoration sewing and a retracted state where the spreader is separated from the needles.

An upper decoration mechanism and a sewing machine without requiring an operation of detaching the upper decoration mechanism from the sewing machine without reducing workability even when performing a double chain stitch not using a decoration thread. The upper decoration mechanism provided on a sewing machine includes an expansion retraction mechanism configured to switch a spreader between an expanded state where the spreader cooperates with needles for performing an upper decoration sewing and a retracted state where the spreader is separated from the needles.

This single chain stitch sewing device is provided with a sewing mechanism provided on a front end arm of a delivery robot. The sewing mechanism comprises a sewing motor for supplying power to sewing needles and loopers. When the sewing motor is energized, power is transmitted to the sewing needles via a first power transmission mechanism, this causing the sewing needles to move reciprocally. At the same time, power is transmitted to the loopers via a second power transmission mechanism to rotate the loopers. Accordingly, sewing is performed. The loopers are provided at an end of a post bed on the side closer to the sewing needles.

A needle assembly for a stitching machine comprises a stitching jig comprising a needle holder, a needle clamp hoop and a fixing jig. The needle holder has needle sockets to hold a plurality of needles. The needle clamp hoop is connected to the needle holder to retain needles in the sockets. The fixing jig is connected to the needle clamp hoop to couple with a reciprocating bar of the stitching machine. A method for manufacturing an article of footwear upper comprises laying out a first sheet of material; positioning a second sheet of material to overlap with the first sheet of material at an overlap; positioning a felt material adjacent the overlap so that the second sheet of material is between the first sheet of material and the felt material; and felting the felt material to draw fibers of the felt material through the first and second sheets of material.

A needle assembly for a stitching machine comprises a stitching jig comprising a needle holder, a needle clamp hoop and a fixing jig. The needle holder has needle sockets to hold a plurality of needles. The needle clamp hoop is connected to the needle holder to retain needles in the sockets. The fixing jig is connected to the needle clamp hoop to couple with a reciprocating bar of the stitching machine. A method for manufacturing an article of footwear upper comprises laying out a first sheet of material; positioning a second sheet of material to overlap with the first sheet of material at an overlap; positioning a felt material adjacent the overlap so that the second sheet of material is between the first sheet of material and the felt material; and felting the felt material to draw fibers of the felt material through the first and second sheets of material.

A needle assembly for a stitching machine comprises a stitching jig comprising a needle holder, a needle clamp hoop and a fixing jig. The needle holder has needle sockets to hold a plurality of needles. The needle clamp hoop is connected to the needle holder to retain needles in the sockets. The fixing jig is connected to the needle clamp hoop to couple with a reciprocating bar of the stitching machine. A method for manufacturing an article of footwear upper comprises laying out a first sheet of material; positioning a second sheet of material to overlap with the first sheet of material at an overlap; positioning a felt material adjacent the overlap so that the second sheet of material is between the first sheet of material and the felt material; and felting the felt material to draw fibers of the felt material through the first and second sheets of material.

A needle assembly for a stitching machine comprises a stitching jig comprising a needle holder, a needle clamp hoop and a fixing jig. The needle holder has needle sockets to hold a plurality of needles. The needle clamp hoop is connected to the needle holder to retain needles in the sockets. The fixing jig is connected to the needle clamp hoop to couple with a reciprocating bar of the stitching machine. A method for manufacturing an article of footwear upper comprises laying out a first sheet of material; positioning a second sheet of material to overlap with the first sheet of material at an overlap; positioning a felt material adjacent the overlap so that the second sheet of material is between the first sheet of material and the felt material; and felting the felt material to draw fibers of the felt material through the first and second sheets of material.

A stitch structure has a first surface and a second surface. The stitch structure includes: a first fabric having a first end section; a second fabric having a second end section; a first stitching that extends in a direction substantially parallel to the direction of extension of the first end section; a second stitching that extends in a direction substantially parallel to the direction of extension of the second end section; a third stitching; and a tape-shaped member. The stitch structure is characterized by; a first thread and a second thread being arranged in the first stitching and the second stitching, respectively, so as to repeatedly return across and penetrate at least the first fabric and at least the second fabric, in the thickness direction thereof; a decorative thread being arranged in the third stitching so as to repeatedly span between at least the first thread and the second thread; and the tape-shaped member binding the first fabric and the second fabric.

A stitch structure has a first surface and a second surface. The stitch structure includes: a first fabric having a first end section; a second fabric having a second end section; a first stitching that extends in a direction substantially parallel to the direction of extension of the first end section; a second stitching that extends in a direction substantially parallel to the direction of extension of the second end section; a third stitching; and a tape-shaped member. The stitch structure is characterized by; a first thread and a second thread being arranged in the first stitching and the second stitching, respectively, so as to repeatedly return across and penetrate at least the first fabric and at least the second fabric, in the thickness direction thereof; a decorative thread being arranged in the third stitching so as to repeatedly span between at least the first thread and the second thread; and the tape-shaped member binding the first fabric and the second fabric.