D05B57/08

High velocity bobbin sewing system
10156034 · 2018-12-18 ·

A thread feeding system for any machine that requires a locking stitch is provided. The lower thread of the lock stitch is delivered from the inside of a rotary hook system or oscillating system of a lock stitch sewing machine. The rotary hook or oscillating hook is held in place by a bearing which is then attached to the chassis of the sewing machine. The rotary hook or oscillating hook is allowed to be driven by teeth on the inner bearing, and they may be located inside or outside, fore or aft to the positioning of the outer bearing. This allows for the void now left inside the rotary hook or oscillating hook where a pipe or tube is placed to feed the lower locking stitch thread.