| 摘要 |
<p>PURPOSE:To provide a pressure vessel made from resin with a sufficient airtightness and liquid-tightness by forming on its mouth piece an inclined face directed inwards in the radial direction so that the boundary surfaces of both the pressure vessel and the mouth piece come into close an d time contact with each other. CONSTITUTION:A pressure vessel 19 made from resin is equipped with mouth pieces 31, 32 which are buried and fixed into the position when it is manufactured. The one mouth piece 31 is provided with a large diameter section 31a and a small diameter section 31b, and also at the boundary position between said both sections 31a, 31b, there is an annular inclined face 31c which directs inwards in the radial direction of the mouth piece 31 and also directs towards the outside of the vessel 19. In addition, the other mouth piece 32 is also provided with annular inclined faces 32c, which direct inwards in the radial direction of the closure 32, on the outward side face in the direction of the axis of respective large diameter sections.</p> |
