| 摘要 |
A support frame (4) which is unfolded by pressurised gas is connected directly to the buoyant case (6) which is filled with air via an inlet valve (5) acting as non-return valve. The support frame comprises three interconnected main sections (7) which, when inflated, form a triangular or trochoidal sectioned float together with the case. The connections (8) of the main sections are formed by portions free of pressurised gas of the flexible material forming the support frame or case. The adjacent walls (6) of each main section are joined at points staggered in relation to each other. |
