| 发明名称 | Sealing device | ||
| 摘要 | A sealing device with a lip edge portion 2a and a sealing-space-opposite-side conical surface 2b whose diameter increases from the lip edge portion 2a toward a sealing space B opposite side is formed on an inner peripheral surface of a seal lip 2, and a first thread ridge 21 that obliquely extends in a given direction with respect to a circumferential direction, a second thread ridge 22 that obliquely extends in a direction opposite to the direction in which the first thread ridge 21 obliquely extends, and a circumferential ridge 23 that extends in the circumferential direction while intersecting the first thread ridge 21 and the second thread ridge 22 are formed on the sealing-space-opposite-side conical surface 2b. | ||
| 申请公布号 | US9133938(B2) | 申请公布日期 | 2015.09.15 |
| 申请号 | US201414493945 | 申请日期 | 2014.09.23 |
| 申请人 | NOK CORPORATION | 发明人 | Hamamoto Kokichi |
| 分类号 | F16J15/32 | 主分类号 | F16J15/32 |
| 代理机构 | Harness, Dickey & Pierce, P.L.C. | 代理人 | Harness, Dickey & Pierce, P.L.C. |
| 主权项 | 1. A sealing device, wherein a lip edge portion and a sealing-space-opposite-side conical surface whose diameter increases from the lip edge portion toward a sealing space opposite side is formed on an inner peripheral surface of a seal lip, and wherein a first thread ridge that obliquely extends in a given direction with respect to a circumferential direction, a second thread ridge that obliquely extends in a direction opposite to the direction in which the first thread ridge obliquely extends, and a raised circumferential ridge that extends in the circumferential direction while intersecting the first thread ridge and the second thread ridge is formed on the sealing-space-opposite-side conical surface. | ||
| 地址 | Tokyo JP | ||