| 摘要 |
PROBLEM TO BE SOLVED: To provide a coverall life jacket for protecting a whole body from the head to the ankles for snow removal since there has been no life jacket for a snow disaster, that is, for snow removal, while there are various life jackets for a marine disaster, fishing and leisure.SOLUTION: A life jacket wraps the whole body from the head to the ankles and protects it from an impact. A tip of the life jacket is tied to a life-line, and when falling together with snow due to some accident, a pin is detached, the coverall life jacket is expanded (swollen) and damages to the whole body are reduced. Also, since the bottom part and side part of a backpack life jacket can be manually expanded, the epoch-making backpack life jacket is designed to be a protection against tsunami and to be a tent as well. |
