BODY MOVEMENT DETECTING DEVICE

摘要

PURPOSE:To maintain moisture permeability and hygroscopicity by disposing piezo-electric elements on the surface or in the inside of bedding in such a way as to be located dust underneath the breast of a human body when a man goes to bed. CONSTITUTION:Body movement detecting means 9 is fixed onto the surface of a mattress 10 with a bonding tape in such a way as to be located just underneath the breast of a human body when a man goes to bed. By this constitution, not only the coarse movement of a human body such as rolling-over and the like but also minute movements such as heart beats and breathing can thereby be detected.