| 摘要 |
PROBLEM TO BE SOLVED: To provide a gas tank held down in manufacturing cost by reducing the number of parts and manufacturing processes and eliminating risk of gas leakage from welded parts.SOLUTION: The gas tank 11 has a body part 11a forming a cylindrical shape and shoulders 11b which are formed on opposite end sides in a longitudinal direction of the body part and are gradually reduced in diameter as progressing outward in the longitudinal direction. The gas tank 11 includes a cylindrical resin liner 13, a valve side mouthpiece 12A and an end side mouthpiece 12B which are provided at opposite ends in the longitudinal direction of the resin liner 13. The valve side mouthpiece 12A and the end side mouthpiece 12B which are provided at the opposite ends of the resin liner 13 have flange parts 32 forming the shoulders 11b, the resin liner 13 has a cylindrical part 13a forming the body part 11a, and the ends of the flange parts 32 are joined to the ends of the cylindrical part 13a. |
