Conveyor chain unit and conveyor chain

摘要

The invention provides for two types of the chain unit that can be assembled into a conveyor chain which varies in width depending upon the number of the units used in the chain. The chain is improved in wear resistance in regions such as those abutting against a driving sprocket, or those found in the side and bottom surface of the chain. The unit is provided with a central straight rib portion (2) from which the same even number of projections (3) having a predetermined width extend in opposite directions perpendicular to a longitudinal axis of portion (2). The projections (3) are spaced apart from each other at equal intervals while staggered along the rib portion (2). Each of a pair of side wall portions (4), which form projection (3), is provided with a through-hole (5) for passing through a connecting rod (21) extending in parallel to the longitudinal axis of portion (2), through which rod (21) the units are connected with each other. <IMAGE>