Patent ID: 8937246
Filing Date: 2015-01-20
Classification: F16J,H01M,H05K,Y02E

Abstract:
1. A gasket comprising: a gasket main body which is attached to a case at outside of a gap between a first seal surface formed on the case and a second seal surface formed on a cover and facing the first seal surface with a distance from the first seal surface and which includes a reinforcing member, the reinforcing member contacting the case when the gasket main body is attached to the case, and the reinforcing member parting from the cover when the cover is attached to the case; a seal portion main body which is extended from the gasket main body to the gap between the first seal surface and the second seal surface, the seal portion main body being configured to face the first seal surface via a gap between the seal portion main body and the first seal surface, when the gasket main body is attached to the case and the cover is not attached to the case; and a protrusion portion which forms a seal portion along with the seal portion main body, the protrusion portion parting from the reinforcing member, the protrusion portion being protruded toward the second seal surface from a portion nearer to a tip portion than a base end portion in the seal portion main body, when the gasket main body is attached to the case and the cover is not attached to the case, and the protrusion portion being pressed by the second seal surface to closely attach the seal portion main body to the first seal surface, when the gasket main body is attached to the case and the cover is attached to the case.