Patent ID: 9020705
Filing Date: 2015-04-28
Classification: A47C,A61B,G08B

Abstract:
1. A biological signal measuring device comprising: an air cushion provided with an airbag and a sensor which detects air pressure fluctuation of the airbag according to load fluctuation, wherein the air cushion is assembled between a skin member and a cushion supporting member arranged on a back face side of the skin member at a site supporting at least the vicinity of a lumbar area of a person, wherein an elastic member made of expanded resin beads which has a size covering the air cushion is disposed between the skin member and the air cushion and is configured by stacking a first elastic member made of expanded resin beads and a second elastic member made of expanded resin beads to each other, and each of the first elastic member made of expanded resin beads and the second elastic member made of expanded resin beads comprises an expanded bead body and a covering material covering an outer face of the expanded bead body.