Patent ID: 7575124
Filing Date: 2009-08-18
Classification: B60K,Y10S

Abstract:
1. A fuel cap for a filler opening of a filler neck of a fuel tank comprising: a cap member; a screw member comprising a gasket to be compressed against the filler opening for sealing the filler opening, in which the gasket is attached to the screw member, and said rib prevents the gasket from being detached, wherein the rib includes a tapered portion radially protruding from the screw member in which a slope of the tapered portion is made in circumferential and radial directions of the screw member, the tapered portion being located to begin tapering adjacent an end part of the thread on the screw member so as to provide a space that allows the filler neck thread to pass through, thereby allowing the screw member to be screwed tightly without causing interference between the rib and the filler neck thread.