| 摘要 |
PROBLEM TO BE SOLVED: To immediately find leakage of a fluid and maintain preventive effect of bedsores and comfortableness for sleeping by encapsulating a liquid or a semisolid in a liquid bag provided on a part of a mat utilizing fluid pressure and adding an aromatic agent to the encapsulated liquid or semisolid. SOLUTION: A liquid bag 11 is arranged roughly in the center of a body width direction and in the center of a trunk direction of a mat utilizing fluid pressure 1, and an urethane mat is arranged around it, that is in front, rear and both sides. The urethane mat 12 controls a position of the periphery of the liquid bag 11, a hard urethane or soft urethane is used as necessary. A mounting position of the trunk direction of the liquid bag 11 extends from shoulder blades M1 to buttocks M3 of an average Japanese. An aromatic agent is added to the liquid or the semisolid which is a gel substance encapsulated in the liquid bag 11. Thereby, a user can immediately notice a leaking of the liquid or the semisolid from the liquid bag 11.
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