Vehicle seat`s continuous or discontinuous type articulation locking ring, has annular portions with respective diameters and separated from each other by S shaped portion, where ring is provided in shape of pressed annular metallic band

摘要

The ring (4) has an annular portion (4c) with a small diameter and an annular portion (4d) with a large diameter, where the annular portions are separated from each other by an S shaped portion (4e). The ring is provided in the shape of a pressed annular metallic band. The metallic band has ends that are fixed by welding.