Oblon, McClelland, Maier & Neustadt, L.L.P.
Pressure container and container body
The present invention can ensure a large capacity while curbing enlargement of occupancy space or quality degradation due to unstable winding of a fiber-reinforced resin material. A pressure container (1) is provided with: a container body (2); and a cylindrical straight body part (10) and a hemispherical dome part (12) which are formed of an outer shell (3) made of a fiber-reinforced resin material, wherein, in a cross-section of the dome part (12) taken along the central axis of the straight body part (10), the shape of the outer surface (21) of the dome part (12) of the container body (2) is a curved shape that falls within the range of ellipse A and ellipse B when the outside diameter of the straight body part (10) of the container body (2) is defined as 2a. The ellipse A is an ellipse that satisfies b/a=0.55, where the major axis thereof is defined as a straight line k connecting boundary points p between the straight body part (10) and the outer surface (21) of the dome part (12) of the container body (2), the diameter along the major axis is defined as 2a, and the diameter along the minor axis is defined as 2b. The ellipse B is an ellipse that satisfies b/a=0.70, where the major axis thereof is defined as the straight line k, the diameter along the major axis is defined as 2a, and the diameter along the minor axis is defined as 2b.
Mitsubishi Chemical Corporation
F F F F F F F F F F F F F F F F F Y B
F17C F17C F17C F17C F17C F17C F17C F17C F17C F17C F17C F16J F17C F17C F17C F17C F17C Y02E B29C
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Keigo Kazuyuki
Yoshida Terada