| 摘要 |
PROBLEM TO BE SOLVED: To eliminate a seal agent reserving clearance while the flange surface of an oil pan is formed by means of press molding which is of advantage to working man-hours and costs, ensure a sufficient seal agent reserving capacity, and provide a high sealing property by a liquid gasket of a double seal structure in which a hardening time of a seal agent is short. SOLUTION: A first flange surface 11 is formed in a flat surface along a total width, a second flange surface 12 is composed of a flat surface part 12a arranged on a center part of a width direction, an inside taper surface 12c, and an outside taper surface 12e. When both flange surfaces 11, 12 are joined with each other, a first seal agent reserving part 31 is formed by the inside taper surface 12c, a second seal agent reserving part 32 is formed by the outside taper surface 12e, and silicone seal agent S is interposed inside and outside so as to form a double seal structure. |
