Conventionally, in such a sewing machine, the elastic kinesio tape to be sewn is fed to have suitable tension on the fabric
. Thus, in the course of the elastic tape from the bobbin to the presser foot, the elastic tape is passed between a pair of retaining members pressing the elastic tape. The retaining members are adapted to press the elastic tape by urging a movable retaining member onto a fixed retaining member by the force of a spring.