Metal chain link for chain conveyor with perfected structure

摘要

A metal chain link designed to form a chain conveyor includes a pair of parallel plates connected by a pair of articulated joint cross pins with adjacent links of the chain and said plates being overlain by a cover forming the carrying surface of the link designed to snap-engage on opposite ends of the pins projecting laterally with respect to said link plates with the cover including first generically U-shaped metal part designed to embrace said plates and bearing holes for snap coupling with the ends of said pins on opposite sides of the link and a second generically U-shaped metal part overlying the first to define lateral link guide surfaces and an upper plate overlying the two U-shaped parts to form the carrying surface of the link. Said upper plate is provided with a cavity on the lower side to receive upper parts of the U-shaped parts overlying the chain plates.