| 摘要 |
<p>A hemmer intended for making double-folded hems by that a fabric edge is fed through the device. The porpose of the present invention is to provide a hemmer which in a simple way may be changed in such a way that hems of different widths can be sewed. A further purpose is to provide a simple and relatively cheap device which is characterized by reliance in operation and which is lenient to the fabric. A third purpose is to make it possible to sew fabrics which already are provided with transversal hems. These objects have been achieved by that the device (10) includes at least two folding bars (11, 12), a main bar (11) and a folding rule (12) arranged at some distance above these, that the main bar (11) in its front end is bevelled and designed to fold the fabric edge (41) around the folding rule (12) with the hem edge located between the folding bars (11, 12), that the second, rear part (19) of the main bar (11) is designed with an upfolded, longitudinal edge section (20) which partly is arranged to extend along and over the rear longitudinal edge of the folding bar (11) and partly is bevelled (21) at its front section.</p> |
