Rocker joint for CVT chain belt with stepped pins

摘要

A power transmission chain belt has multiple inner links (2), each having a pair of pin apertures (22). The links (2) are interleaved in the transverse and longitudinal directions. The links (2) are connected by a connecting pin (3) inserted in the pin aperture (22) to compose a chain belt. The connecting pin (3) is composed of a joint pin (31) of an arcuate cross-section, both end faces of which contact the pulley's friction face (5), and a rocker pin (32) of arcuate cross-section, which is shorter than the joint pin (31). The outer link (4) is arranged on the outside of outermost inner link (2). A stepped portion of the joint pin (34) is press-fitted into a pair of pin apertures (22) of outer link (4).