Sewing apparatus for manufacturing a tubular piece

A sewing apparatus for manufacturing a tubular piece, comprising:

• a sewing machine having a top surface;
• a carrying table having a rear edge and forming a conveying surface continuously disposed flush with a top surface of a sewing table of the sewing machine;
• a movable table having a top surface and a front edge, said movable table serving to transport a long tape from a back position to a forward position on the carrying table, the long tape having a front end and said carrying table having a front side and supporting the long tape with the front end projecting from the front edge of the movable table;
• a predetermined length feeding device for feeding a predetermined length of the long tape, said predetermined length feeding device being disposed at the front side of the carrying table;
• an inverting device having a pair of gripping blades for folding back the long tape after the pair of gripping blades have gripped the front end of the long tape at the forward position of the movable table, said predetermined length feeding device having the predetermined length of the long tape fed thereto;
• a cutting device for cutting a rear portion of the long tape under the front end of the long tape to make a folded cut-piece after the gripping blades have folded back the long tape;
• and
• a conveying device for conveying the folded cut-piece along the top surface of the sewing machine and the conveying surface of the carrying table, toward the sewing machine, wherein edges of the folded cut-piece area are sewn and joined together.