Patent ID: 9597244
Date: 2017-03-21
CPC Classifications: A47C,A61G

Claim:
1. An air mattress to be laid upon a plurality of frames including at least a raisable back frame of a bed, comprising: a plurality of air cell groups lined up in a lengthwise direction of the air mattress, each of which groups being made of a plurality of bladder-shaped cells; an air supply/release pump; an air tube connecting said air cell groups and said air supply/release pump in an independent system for each air cell group of two or more air cell groups out of said air cell groups; and a controller for receiving from an external sensor for detecting information needed to control said bed at least a part of said information, and controlling air supply/release for the air supply/release pump for each of said air cell groups on the basis of the received information wherein: the bladder-shaped cells of said air cell groups comprise rod-shaped cells extending in a widthwise direction of the air mattress; said plurality of air cell groups includes air cell groups corresponding to the back area, the buttock area and the thigh area of a person lying on the air mattress; and when said back frame is raised, said controller increases the pressure of said air cell groups corresponding to the back area and thigh area, and performs a control so that the pressure of said back-area and thigh-area air cell groups is greater than the pressure of said buttock-area air cell group.