US 7,575,124 B2
Fuel cap with improved sealability
Toshiaki Nakai, Wako (Japan); and Syouichi Hokazono, Wako (Japan)
Assigned to Honda Motor Co., Ltd., Tokyo (Japan)
Filed on Jun. 24, 2005, as Appl. No. 11/166,494.
Claims priority of application No. 2004-200462 (JP), filed on Jul. 07, 2004.
Prior Publication US 2006/0006179 A1, Jan. 12, 2006
Int. Cl. B65D 53/00 (2006.01); B65D 41/04 (2006.01); B65D 55/16 (2006.01)
U.S. Cl. 220—304  [220/288; 220/DIG. 33; 220/375] 8 Claims
OG exemplary drawing
 
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 cylindrical body,
a thread provided on the outer periphery of the cylindrical body for engaging with a thread provided on the filler neck and
a rib provided on the outer periphery of the cylindrical body which is closer to the cap member than the thread; and
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.