| 摘要 |
A fuel-filling aperture open-closing device, which opens a pathway by inserting a fuel-filling nozzle, reduces foreign matters entering into a filler pipe from the fuel-filling aperture open-closing device. The fuel-filling aperture open-closing device provided in one end of the filler pipe includes a tube member internally forming a pathway, and connected to one end of the filler pipe in such a way that an axis line has an angle relative to a vertical direction; and a first valve body rotatably provided inside the pathway, blocking the pathway by being constantly urged to an outer end side by a first torsion spring, and opening the pathway when rotating against an urging force of an urging member by being pressed by the fuel-filling nozzle. The tube member includes a discharge hole communicating an outer surface with an inner surface of the tube member in a portion in which an outer surface of a lateral circumferential portion thereof faces downward, and corresponding to an outer end side portion in a closed position of the first valve body. The valve body includes a plurality of discharge grooves extending toward the discharge hole in a portion on the outer end side. |
