Thread tensioner for a sewing machine

摘要: Thread tensioner for a sewing machine. In one example embodiment, thread machine includes first disk, second spring, knob, and sensor. The disk is positioned next to the disk. spring configured apply tension between by exerting force against defines length end end. knob configured, when rotated in direction, travel along threaded shaft toward thereby cause of shorten. another away from allow lengthen. sensor track current spring.