| 摘要 |
An attachment for a semi-automatic sewing machine ensures that any excess thread chain extending from the leading or trailing edge of a garment during an operation on the garment with the sewing machine, is stitched directly to the garment so that no loose or free ends of thread chain are provided. The completion of stitching by the sewing machine of a first garment is sensed with an electric eye, and the first garment is engaged in response to the sensing by a rubber wheel which moves the garment away from the stitching needle more quickly than the sewing machine stitches the stitch chain. The excess thread chain is automatically severed by a movable plate rotating with respect to a stationary plate, and the excess severed thread chain is automatically positioned (by a blower, a catcher and a block of rubber) so that excess thread chain is stitched to the second garment by the sewing machine. Stitching action of the sewing machine is automatically stopped by a drop-off linkage arrangement which includes a linear actuator and rod connected to the foot pedal for the sewing machine, and an arm for actuating the sewing machine clutch.
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