DRIVE OF NEEDLE BAR OF SEWING MACHINE

摘要

A drive of needle bar of sewing machine has crank and con-rod installed on main shaft of the machine, and stopper. The con-rod is connected to crank and needle bar for restriction of value of displacement of con-rod that has tubular guide and restriction sides. The needle bar is connected to mechanism of stopping sewing machine by the means of magnet. The stoppers are placed on springs opened with spring-supported bushing fixed on needle bar.