| 摘要 |
According to the invention a conveyor chain is provided comprising an inner link (IL) in which both ends of two bushes (110) are respectively press-fitted into bush holes (120a) engraved into a pair of inner link plates (120) and which has a rotatable roller (130) on the outside of the bush (110), and an outer link (OL) in which both ends of two connecting pins (140) loosely penetrated into the bushes (110) of adjacent said inner links (IL) are respectively press-fitted into pin holes engraved into a pair of outer link plates (150) disposed on both outsides of the pair of inner link plates (120), the inner links (IL) and the outer links (OL) being alternately flexibly connected to each other with connecting pins (140), wherein the bush (110) has thin-walled step portions (110a) each slightly longer than the thickness of said inner link plate (120) on both end portions and is press-fitted into the bush holes (120a) engraved in said inner link plates (120) so that the end portions of the step portions (110a) are protruded on the outer link plate side, and a small gap (A) is formed between the inner link plate (120) and the outer link plate (150). |
