Conveyor chain using freely rotating balls

摘要

A conveyor chain having fewer parts is disclosed. The assembly and disassemby of the chain conveyor and the removal of the ball and the like can be easily performed. In a conveyor chain (100) in which chain links (110) having article loading portions (111) on which articles are loaded are adjacently, endlessly connected with each other with connecting pins. Between the hinge portions (113) disposed on one side edge of the article loading portion (111) is formed a U-shaped cutout portion (115) having a ball holding inner peripheral surface (115a), a free ball (130) inserted between a hinge portion (112) of the chain link (110) oppositely adjacent to the U-shaped cutout portion (115) and the U-shaped cutout portion (115) is rotatably held by the ball holding inner peripheral surface (115a) and a stopper (140). The upper and lower portions of the free ball (130) are protruded from a surface of the article loading portion (111) and a lower end of the link portion (114), respectively.