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US4577576A Stitching adjustment device of a sewing machine 失效
缝纫机缝合调整装置

Stitching adjustment device of a sewing machine
摘要:
A stitching adjustment device for a sewing machine having a stitching width adjusting device for controlling a pattern forming device by means of an electronic control device, the stitching adjustment device consisting of a means for adjusting amplitude external from the sewing machine and a means for detachably connecting the amplitude adjusting means with the electronic control device so that when connected the amplitude adjusting means controls the stitching instead of the stitching width adjusting device.
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