Abstract: The elastic tape sewing machine comprises feed teeth feeding a combined body of a fabric and an elastic tape, a sewing needle sewing the elastic tape on the fabric, a presser foot including an elastic tape through-hole and movable to and from said feed teeth to hold the combined body of the fabric and the elastic tape with the feed teeth, a supply device including a retaining means retaining the elastic tape utilizing spring force of an elastic body and feeding the elastic tape through the elastic tape through-hole to one side of the presser foot opposing the feed teeth, a guide device guiding the elastic tape fed from the supply device to a sewing-ready position between the presser foot and the feed teeth, and a cutting device to cut the elastic tape, characterized in that said retaining means includes a regulating apparatus formed by a regulating mechanism having a motor rotating predetermined angle by an electric signal to regulate the spring force of the elastic body and a controller controlling the rotat

Abstract: Sewing machine for sewing a rubber strip to a tubular end piece of a garment made from an elastic textile material in order to produce an endless elastic band. The sewing machine comprises a presser foot (18) with an insertion opening (22) for the rubber strip (24), a braking device (48) to resist the insertion movement of the rubber strip and provided with two clamping elements (50, 52) which grip the strip, and a cutting system (26) which can be motor driven in order to cut the rubber strip. To eliminate the reintroduction process of the strip (24) into the insertion opening (22) of the presser foot (18) after said cutting, the cutting system (26) is arranged rear from the insertion opening (22) of and in the presser foot (18), and a drive (56) is associated with the braking device (48) to increase the gap between the two clamping element (50, 52) just before actuation of the cutting system (26).