(e) una operación en la que el primer y segundo alimentadores de hilo son invertidos, el primer alimentador de hilo precedente es usado para tricotar el primer tejido;
According to another aspect of the invention there is provided a method of knitting tubular fabrics wherein is used a flat knitting machine, which is provided with at least a pair of needle beds, one in the front and one in the back, at least one of said needle beds being able to be racked sidewise, is provided with a first yarn feeder and a second yarn feeder, being able to be reciprocated on different guide rails one in the front and one in the back, and is provided with at least two knitting systems, said first and second yarn feeders are used as a preceding yarn feeder and a succeeding yarn feeder, double system knitting is used to knit a first tubular fabric comprising a first fabric and a second fabric being joined at both edges thereof, and to knit a second tubular fabric comprising a first fabric and a second fabric being joined at both edges thereof by using needles of a knitting area differing from that of the first tubular knitted fabric, the edge of the first tubular fabric on the side of the second tubular fabric is broadened to have desired diameters of the tubular fabric, then the first tubular fabric and the second tubular fabric are joined together, said method of knitting tubular fabrics being characterized in that in knitting a course for forming a broadened portion on the edge on the lower end of the knitting direction of the first tubular fabric, a yarn feeder of which front and back agree with the front and back of the fabric to be knitted is used as the preceding yarn feeder, and the step of forming a broadened portion in the first tubular fabric includes the following steps: (a) a step of racking the first needle bed or the second needle bed so that the needle holding the loop at the edge of the first fabric on the first needle bed is positioned closer to the broadening formation side than the needle holding the loop of the edge of the second fabric on the second needle bed; (b) a step wherein the preceding first yarn feeder is used to feed yarn to needles holding loops of the first fabric except the needle holding the loop at the edge on the lower side of knitting direction of the first fabric, and yarn is newly fed to a needle of the second needle bed located on the lower side of the knitting direction; (c) a step wherein the succeeding second yarn feeder is used to feed yarn to needles holding the loops of the first fabric and newly to a needle of the second needle bed located on the lower side of the knitting direction; (d) a step wherein the first and second yarn feeders are reversed, and the preceding first yarn feeder is used to feed yarn to needles holding the second fabric except the needle holding the loop at the edge on the upper side of the knitting direction of the second fabric to knit; (e) a step wherein the succeeding second yarn feeder is used to feed yarn to the needles of the second needle bed to which yarn was newly fed in said step b and step c, and to the needles holding the loops of the second fabric to knit; and (f) a step wherein in succession to the yarn newly fed to the needles of the second needle bed in said step c, the loop formed in said step e is transferred to a needle of the opposing needle bed.