| 摘要 |
PURPOSE:To form upper and lower air chambers in completely independent air chambers and maintain buoyancy with one air chamber even if the other bag body is broken by connecting an independently formed doughnut-like bag body and a barrel section bag body via a connecting section to constitute a life jacket. CONSTITUTION:A life jacket is constituted with a doughnut-like bag body 1 and a barrel section bag body 2. These bag bodies use a non-permeable cloth material, and they are separately formed respectively and are integratively connected via a connecting section 3 serving as a fold. both bag bodies are formed in independent air chambers respectively, and individual bag bodies are fitted with cut cases 4, 5 and auxiliary air feed rubber tubes 6, 7 respectively, and the bag bodies 1, 2 can be inflated with carbon dioxide by pulling cords 4a, 5a to open valves of the cut cases 4, 5. |
