RECIPROCATING DRIVING MECHANISM

摘要

A chain drive for a workpiece transfer mechanism wherein a pair of coaxial rollers mounted on a chain extending around a pair of spaced sprockets engage the slotted legs of a yoke depending from a carriage. The carriage is reciprocated as the rollers travel around the endless path of the chain. At each sprocket guide tracks are provided which are engaged by the rollers on the chain to guide the rollers in an arcuate path around the sprockets.