| abstract |
It is an object of the present invention to provide a pressure vessel which is light in weight, has sufficient capacity, and has excellent durability. A cylindrical straight body portion (10) and dome portions (11) provided at both ends of the straight body portion, the straight body portion (10) and the dome portion (11) And a shell (3) made of a fiber reinforced resin material provided on the outside of the container body (2), and the dome portion (2b) of the container body (2) has the tip of the dome portion (2b) From the boundary position between the straight body (2a) and the dome (2b) of the container body (2) to the tip of the dome (2b) The end (12a) of the pinch-off part (12) on the opposite side of the tip of the dome part (2b) from the tip of the dome part (2b), assuming that the distance in the axial direction of the straight barrel part (2a) is 1. A pressure vessel (in which the axial distance of the straight body (2a) of the ). |