PRESSURE VESSEL MADE OF COMPOSITE MATERIAL.

摘要

A pressure vessel made of a composite material according to the present invention is constituted of an inner tube (2) formed of a fiber-reinforced resin material, a rigid attaching member (10 or 30) which is fit into at least one of the two axial ends (4 and 5) of the inner tube (2) and is provided with at least one protrusion (20 or 42) made of a fibrous material, and an outer tube (3) formed by winding a resin-impregnated fibrous material (50) around the peripheries of both the inner tube and the attaching member while reversing the direction of winding of the fibrous material by hooking it on said protrusion. Each of the sections where the attaching member (10 or 30) is fit into the axial end (4 or 5) of the inner tube (2) is designed to involve at least one pair of mutually abutting faces (7 and 22; 8 and 23; or 9 and 36), and the diameter of the periphery of an area ranging from the abutting face (23 or 36) of the attaching member (10 or 30) to at least a section provided with the protrusion (20 or 42) is adjusted to be nearly equal to the outer diameter of the inner tube (2).