| 摘要 |
PROBLEM TO BE SOLVED: To obtain a jacket with a lumber support of the cushion body formed in the inside of a back body of the jacket and out of an air bag, not only enabling the air bag to be expanded by a person wearing the jacket while sitting down, but also enabling the air to be let off from the expanded air bag only by the pumping operation from the front body to make the air bag an inconspicuous flat shape. SOLUTION: An air bag 2 forming a lumber support is formed in the inside of the waist girth part of a back body of a jacket, and a manual pneumatic pump 4 is formed in the inside of a front body. A selector valve 6 switching the air flow passages is installed in the manual pneumatic pump 4. |
