| 摘要 |
<p>Sewing machine (10) comprising a base (12) with a crochet and a head (14) that comprises a needle support (30), a fabric pressure foot (24) and its adjusting means (26), motor means (28) to make a needle sew together with the crochet, and lever means (32) to turn the rotary motion of the driving means into a vertical reciprocating motion. The needle support (30) in turn comprises at least two needle bars (46, 48) that are moved vertically by said lever means (32), and a connecting element (50) to couple the lever means (32) with at lead a needle bar (46, 48). Each needle bar (46, 48) is coupled with a needle (16, 18) through a respective thread and actuated selectively in the crochet in order to allow the sewing.</p> |
