Yoshida Kogyo K.k.

Kiichirou Ishikawa

Chet P Dudek

James Hutcherson

Yasuhiro Fukumoto

Toshiaki Sawada

An apparatus for feeding a slide fastener chain with fabric strips attached thereto and including flaps extending over a pair of interengaged rows of coupling elements includes a narrow elongate lower guide member having a central guide groove extending longitudinally in an upper guide surface thereof for receiving and guiding the interengaged rows of coupling elements, and a presser roller disposed adjacent to an upstream end of said lower guide member for resiliently urging the slide fastener chain against the upper guide surface to cause the flaps to engage said upstream end of said lower guide member and then turn down away from the coupling elements on one side of said lower guide member as the slide fastener chain is fed by a feed unit longitudinally along a feed path toward a subsequent processing station.

Apparatus for feeding slide fastener chain with folding of attached

A trouser-fly piece serging apparatus includes a guide unit disposed upstream of a serging station and composed of a first elongate guide member extending at an angle relative to the path of movement of a trouser-fly piece being advanced by a serging unit, and a second elongate guide member extending parallel to the path of movement of the trouser-fly piece. The trouser-fly piece is guided by the first guide member into the serging station so that a trimming cutter disposed immediately upstream of the serging unit assumes a position to conform to a curvature of the leading end of a substantially arcuate trimming line passing across a corner of the leading end of the trouser-fly piece. Synchronous operation of the serging unit and the trimming cutter causes the trouser-fly piece to turn in one direction during which an arcuate corner which is trimmed by the trimming cutter and subsequently serged by the serging unit is automatically produced on the leading end of the trouser-fly piece. Then, the trouser-fly piece is guided by the second guide member, and as the trouser-fly piece is further advanced, a curved longitudinal edge of the trouser-fly piece including the trimmed arcuate corner is completely serged with an overedge or serge stitching.

Trouser-fly piece serging apparatus

An apparatus for automatically sewing a succession of fabric pieces to a continuous slide fastener chain comprises a sewing machine for feeding and sewing the fabric pieces and slide fastener chain together; a guiding apparatus disposed upstream of the sewing machine and including a pair of opposed guide rollers urged towards each other with the slide fastener chain interposed therebetween so as to be driven via the slide fastener chain by the sewing machine while guiding the slide fastener chain towards the sewing machine; and a feeding apparatus disposed between the guiding apparatus and the sewing machine and including a pair of opposed feed rollers urged towards each other so as to convergently place therebetween the slide fastener chain into superimposed relation to the fabric pieces and to feed the fabric pieces with the slide fastener chain thus superimposed thereon to the sewing machine. One feed roller of the two feed rollers of the feeding apparatus which the fabric pieces ride on and one guide roller of the guide rollers of guiding apparatus are so linked as to rotate with each other.

Apparatus for sewing fabric pieces to slide fastener chain

In a sewing of successive substantially rectangular fly pieces to a continuous slide fastener chain on a sewing machine, a corner of the leading end of the individual fly piece is automatically folded as the fly piece is advanced toward a sewing station defined by the sewing machine, then two plies of the folded corner are joined with a line of stitches when the fly piece is sewn to the slide fastener chain by the same stitches. A longitudinal edge of the fly pieces is serged with a line of overedge stitches running across the folded corner.

Growing community of inventors

Marietta, GA, United States of America

Kiichirou Ishikawa