support 5b downward around shaft 6 this urges secondary roller 7b at the end of roller support 5b into contact with the outer surface of main roller 3 tape holder 17b moves away from the upper surface of tape tb and releases pressure from tape tb between tape holder 17b and bottom plate 5b of secondary roller support 5b returning to fig3 meanwhile the other cylinder cylinder 11a is extended secondary roller support 5a is moved upward around shaft 6 against the elastic force of spring 10a secondary roller 7a on the end of secondary roller support 5a is moved to a position away from the outer surface of main roller 3 tape holder 17a maintained in contact with the upper surface of tape ta thus maintaining pressure on tape ta between tape holder 17a and bottom plate 5a of secondary roller support 5a in this condition wide tape tb from reel 4b passes through tape guide 8b and is interposed between main roller 3 and secondary roller 7b with the rotation of main roller 3 tape tb contacts sensor 16 passes through tape guide 14 and is fed toward the sewing section of the sewing machine at a predetermined speed while this is being done a generally constant tension is maintained on tape tb based on the detection by sensor 16 of the amount of tape tb being fed this detected.