| 摘要 |
PURPOSE:To provide a seal for rotation, with which sealing performance is ensured even when a shaft is in a stationary state, and which can be manufactured at low cost. CONSTITUTION:A seal 1 for rotation is interposed between a housing 2 and a rotation shaft member 3, and a first seal element 11 and a second seal element 9 having grooved seal rip parts 13, 14 slidably connected to an outer peripheral surface 4 of the rotation shaft member 3 are provided on the side of a fluid storage chamber 5 and on a low pressure side 7. An elastic seal member 12 is also provided closer to the fluid storage chamber 5 than to the first seal element 11. The seal member 12 is provided with an outer periphery abutting piece part 20 closely connected to an inner surface 2a of the housing 2, an element pressure contact piece part 18 adhered to an end surface 27 in the side of the fluid storage chamber of the first seal element 11, and a seal rip part 17 slidably connected to the outer peripheral surface 4 of the rotation shaft member 3 almost in a line-contact status, in an integrated form. |
