| 摘要 |
PROBLEM TO BE SOLVED: To provide a gas tank capable of maintaining good sealability, the cost of which is reduced by reducing a number of components and assembly work process.SOLUTION: A base 16 includes: a flange 22 in contact with a shoulder 15 of a liner 12 from inside; and a male screw 23 to which a liner fastening nut 31 can be threadedly connected. The liner fastening nut 31 includes: a female screw 34 which can be screwed with the male screw 23 of the base 16 and a collar 35 which presses the shoulder 15 of the liner 12 from outside, and is elastically deformable at least between the female thread 34 and the collar 35. The liner 12 is held and sealed between the flange 22 and the collar 35 by screwing the female screw 34 of the liner fastening nut 31 with the male screw 23 of the base 16 to couple them. |
