| 摘要 |
<p>A seating device (1) can include a bearing (11) having a first ring (13) and a second ring (12), a metal ring (2) connected to the first ring (13), and an elastic body (4) connected to the metal ring (2). The elastic body (4) includes a projection part (4e) having a lip part extending from the metal ring toward the first ring (13) so as to be elastically in contact with the first ring (13) and grooves (4f1,4f2) positioned adjacent the lip parts.</p> |
