| 摘要 |
PURPOSE: To facilitate installation and removal and to improve reliability of sealing by forming at least one sealing lip toward a bottom part from a free end so as to branch from a side wall on the free end of the side wall of a half section L shaped sealing member. CONSTITUTION: A sealing member constitutes a seal from a film molded of rubber or a similar material so as to be of a cup shape from a bottom part 131 and a side wall 132, and the bottom part 131 and the side wall 132 are formed on a half section L shaped metal frame 133 made of an arm which is long in the axial direction and an arm which is short in the radial direction. Additionally, a sealing surface facing against a drilled part is formed so that a connecting part of the bottom part 131 and the side wall 132 becomes a conical surface 136, two roughly symmetrical seal lipa 201, 202 extending from the end part toward the bottom part 131 are formed on a free end part of the side wall 132 and an outer surface of each of the lips 201, 202 is branched in the axial direction of the film. |
