| 摘要 |
PROBLEM TO BE SOLVED: To provide a pressure container that is prevented from sealing performance from decreasing owing to permanent set-in fatigue without increasing the number of components.SOLUTION: A pressure container A comprises: a liner 10 molded having a dome part 12 connecting with an end of a trunk part 11; a cylindrical projection part 18 formed at a top part 17 of the dome part 12 to project outward; a cylindrical ferrule 23 fitted externally onto the cylindrical projection part 18; a valve 30 fitted in the ferrule 23 and incorporated in the cylindrical projection part 18; and a seal member 36 provided in contact with a peripheral surface of the cylindrical projection part 18 which has a double-wall structure including a first cylinder part 19 projecting outward connecting with the dome part 12 and a second cylinder part 22 extending from a projection edge of the first cylindrical part 19 while folded back toward an inner peripheral side to be fitted externally onto the valve 30.SELECTED DRAWING: Figure 2 |
