| 摘要 |
PROBLEM TO BE SOLVED: To provide a lifeboat folded in a containing bag attachable to a human body. SOLUTION: This lifeboat comprises a manual expanding air chamber 1 to be expanded by compressed air to form a ship shape and flexible floor cloth 3 stretching at a lower part of the manual expanding air chamber for forming a ship shape. The manual expanding air chamber comprises two folding parts 13 and a constricted portion 92 where inner walls of the manual expanding air chamber at the folded parts stick with each other. The inner wall parts at the folded parts of the air chamber stick with each other for facilitating folding, thereby fully buoyancy can be obtained and a compressed air cylinder remains small without increasing a number of air chambers. The flexible floor cloth stretches at a bottom of the lifeboat for making it possible to be folded, then the cloth can be folded and contained inside the containing bag for fitting a waist by a belt.
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