| 摘要 |
PROBLEM TO BE SOLVED: To further improve safety for a user. SOLUTION: A main body part 11 and a bottom part 13 installed in the main body part 11 are combined. The main body part 11 and the bottom part 13 are integrally folded into a portable size and inflated by filling with air when using a lifeboat to form storing space S with a bottom for storing the user. |
