Patent ID: 6009819
Filing Date: 2000-01-04
Classification: D05B,D05D

Abstract:
An auxiliary device for sewing up a starting end of a thread chain in a chain stitch sewing machine comprising a platform, a needle plate, an edge cutter, a suction and separating means disposed behind the needle plate in a sewing direction for taking in and cutting off the thread chain upon sewing a workpiece, a returning means for turning a remaining end of the thread chain around against the sewing direction, and a clamping and deflecting means disposed ahead of the needle plate in the sewing direction for retaining the remaining end of the thread chain turned around and for laterally deflecting the same into a cutting area of the edge cutter, both the returning means and the clamping and deflecting means being constituted by a thread chain looper disposed ahead of the needle plate, and the looper consisting of loop nippers longitudinally movable in the sewing direction and a nipper carrier movable transversely to the sewing direction.