| 摘要 |
An automatic sewing machine for sewing chain stitch seams is suitable both for forward sewing and for reverse sewing. For forming chaining loops, a chaining tongue is to be disposed in the region of the needle. During forward sewing, the chaining tongue disposed on the needle plate is directed in the feeding direction. This chaining tongue (32) for forward sewing, just as a chaining tongue (34) for reverse sewing, is formed on a disk-shaped tongue carrier (30) which is embedded in the needle plate (22). The disk-shaped tongue carrier (30) is brought, via an adjusting mechanism (40 to 57), into one of two defined operational positions corresponding to forward sewing and reverse sewing, respectively. A sewing material feeder is formed as a gripper-type feeder having upper a lower gripping structures (60, 62). The lower gripping structure (60) is guided in a guide way (36) of the needle plate across the tongue carrier (30).
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