Pressure container manufacturing method

1. A pressure container manufacturing method for manufacturing a pressure container by forming an outer shell made of a fiber reinforced composite material on an outer periphery of a liner which has a cylindrical portion, dome portions connected to both ends of the cylindrical portion, and a mouth piece disposed on a top of at least one of the dome portions, comprising:

forming a body on the periphery of the liner by braiding a fiber bundle provided from a plurality of bobbins of a braider which is disposed in a circumferential direction of the liner, while moving the liner in an axial direction, wherein when a forming position of the body reaches a root portion of the mouth piece of the liner, a movement in a first direction of the liner is stopped, each of the bobbins is rotated approximately a half-turn in the circumferential direction of the liner, and thereafter formation of the body is continued while moving the liner in a second direction opposite to the first direction; and

curing a resin which is impregnated in the fiber bundle, to form an outer shell.

2. The method as claimed in claim 1 , wherein the resin is a thermoplastic resin.

3. The method as claimed in claim 1 , wherein the resin is a thermosetting resin.

4. The method as claimed in claim 2 , wherein the thermoplastic resin is any one of a polyimide, a polyphenylene sulfite and a poly ethylene terephthalate.

5. The method as claimed in claim 1 , wherein the liner comprises any one of a liquid crystal resin, a synthetic resin and a metallic material.

6. The method as claimed in claim 1 , wherein the fiber bundle comprises any one of a carbon fiber, a glass fiber and an aramide fiber.

7. The method as claimed in claim 1 , wherein the half-turn is in a range between 180 degrees and 225 degrees, which interposes the mouth piece.

8. The method as claimed in claim 1 , wherein the fiber bundle is continuously braided in the forming a body on the outer shell of the liner.