Toyoda Gosei Co., Ltd.

Tetsuya Shibazaki

Norihiko Ishihara

Tomohiro Kubo

Takashi Sakamoto

In a housing surrounding a nozzle insertion passage, a first opening open to the atmosphere is provided, and in a cover main body in which the housing is incorporated, a nozzle insertion port and a second opening which is opposite the first opening and open to the atmosphere is provided. Moreover, in the recess wall of a drainage port formation member fitted to the first opening, a recess which is recessed on the side of the first opening is formed so as to be continuous with the second opening, and a drainage port is provided. A drainage valve is held in the recess with respect to the recess wall so as to open and close the drainage port by turning of the valve main body about the turning shaft serving as a base point.

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Tokyo, Japan

Tetsuya Shibazaki