| 摘要 |
<p>The present invention relates to an improved sewing machine, for sewing overlapping materials and making ornamental seams on a single material. The machine comprises: a first supplying assembly for supplying a first seaming yarn (5), arranged under the pieces to be seamed, a second supplying assembly (7) for supplying a second seaming yarn (6), arranged above the pieces to be seamed, a needle (9) arranged on the top of the seaming region and needle (9) driving means for driving the needle by a reciprocating movement along a movement axis thereof in order to cause the needle tip to pass through the pieces (3,4) to be seamed and to engage the first yarn (5) so as to provide a yarn loop traversed by the second yarn (6), as a seaming stitch is formed. The machine has the main feature that it further comprises loading means (18-22) for automatically loading the second yarn (6), inside a looper (11) of the assembly (7) supplying the second yarn, as well as means for cutting the second yarn at the end of the second yarn loading operation. <IMAGE></p> |
