| 摘要 |
PROBLEM TO BE SOLVED: To provide a cap which can prevent cooling water from coming close to its spouting tube and is capable of discharging or disappearing the cooling water sucked into the cap, and also to make the cap free from distorsion when being made up in a double side wall structure and available for getting rid of the cooling water effectively. SOLUTION: For the hinged cap, an upward-looking annular protuberance 14 is formed between a spouting tube 9 and a peripheral edge 16 at the top plate at the cap main body 2 while an engaging part 24 looking toward the inside and capable of being engaged liquid-tightly with the annular protuberance is formed at the inside of a skirt part 21 of an upper cap 4, and a water- discharging mechanism 15 is formed at a place where the peripheral edge 16 at the top plate of the cap main body 2 and the lower end of the skirt part of the upper cap 4 come into contact with each other. |
