公开(公告)号：US20210268887A1

公开(公告)日：2021-09-02

申请号：US17181090

申请日：2021-02-22

申请人： SUMITOMO RIKO COMPANY LIMITED ,  TOYOTA JIDOSHA KABUSHIKI KAISHA

发明人： Hiroki MIZUKAWA ,  Naoki FURUMACHI ,  Katsuhiro SAKURAI

IPC分类号： B60K5/12 ,  F16F1/373

摘要： A vibration damping device including: a first attachment member and a second attachment member disposed apart from each other; and a main rubber elastic body connecting the first attachment member and the second attachment member, the main rubber elastic body being of a frustoconical-like shape having an outer peripheral surface whose diameter gradually increases from the first attachment member toward the second attachment member, the main rubber elastic body including a recess opening onto a center portion thereof on a large-diameter side that is a second attachment member side, and the main rubber elastic body that constitutes a bottom part of the recess integrally including a vibration-damping protrusion protruding into the recess.