| 摘要 |
An auxiliary device (6) for sewing up the starting end of a thread chain (F) in a chain stitch sewing machine (1) having a platform (2), a needle plate (3) and an edge cutter (4) comprises a suction and separating device (5) disposed subsequent to the needle plate (3) in sewing direction (N) for taking in and cutting off the thread chain (F) upon sewing a workpiece, a returning device for turning round the remaining end piece of the thread chain against the sewing direction (N), and a clamping and deflecting device disposed before the needle plate (3) in sewing direction for retaining the end piece of the thread chain turned round, and for laterally deflecting the same into the cutting area of the edge cutter (4). To ensure a relatively simple and functionally reliable sewing up of the starting end, there is provided a thread chain looper (7) disposed before the stitch plate (3) in sewing direction (N) and constituting both the returning device and the clamping and deflecting device, which looper consists of looper nippers (8) longitudinally movable in sewing direction (N) and a nipper carrier (9) movable transverse to the sewing direction (N).
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