PLUG STRUCTURE FOR HEAT INSULATED VESSEL

摘要

PROBLEM TO BE SOLVED: To prevent water leakage from a liquid pouring passage in a plug device having an intake communicating with the inside of a vessel body and the liquid pouring passage between the plug device and the intake inside a plug body. SOLUTION: A plug body 3 to be attached and detached freely is disposed at the port part 2 of a vessel body 1 having heat insulated structure. The plug body 3 has an intake 4 communicating with the inside of the body 1 and an outlet 6 making a pouring port forming a liquid pouring passage between the outlet 6 and the intake 1 and is provided with a valve opening and closing mechanism 8, which controls the opening and closing operation of a valve 7 for opening and closing the intake 6 of the liquid pouring passage, and a cup 16 covering this plug body 3 and fitted to the main body 1 in a freely attachable and detachable manner. An outlet 6 making the pouring port of the plug body 3 is clogged by a clogging part 17 provided on the inner surface of the cup 16 by the fitting state of this cup 16.