Patent ID: 7926818

Claim:
A sealed structure comprising a cover and a box body which face each other, the box body having a U-shape in cross section, a gasket having a main body and a lip portion, the lip portion being located at a leading end side of said main body, the main body being adhered to a bottom surface of the cover, a step surface of said gasket formed by said main body and the lip portion, said step surface being positioned at a peripheral wall side of said cover with respect to said lip portion, a contact surface of said main body engaged with a peripheral wall of said cover being formed by a side wall of said main body, an inner end surface of a leading end portion of a peripheral wall of said box body including a tapered surface inclined towards an outer side of the box body, a single planar surface of said box body located closest to the gasket being spaced by a separation distance from said peripheral wall of said cover, a seal surface being formed by the leading end surface of the peripheral wall of the box body in contact with the lip portion so that the gasket is deformed at a time of said cover being assembled to said box body, and the seal surface being formed by bringing the leading end surface of the peripheral wall of the box body into contact with a portion of the gasket which is bent towards an inner side of the box body so as to incline the gasket when the gasket is dispersed.