Patent ID: 9095224
Filing Date: 2015-08-04
Classification: A47C,A61G

Abstract:
1. An air mattress, comprising: a plurality of air cell groups lined up in a lengthwise direction of the air mattress, each of which groups is constituted by a plurality of bladder-shaped cells; an air supply/release pump; an air tube of a first system for connecting bladder-shaped cells of partial air cell groups out of said air cell groups to said air supply/release pump in one or a plurality of independent systems by assembling the bladder-shaped cells belonging to the air cell groups thereof all together; an air tube of a second system for connecting bladder-shaped cells of the remaining air cell groups out of said air cell groups to said air supply/release pump in a plurality of independent systems in common for every one of the the plurality of bladder-shaped cells; a pressure sensor for measuring the pressure within said bladder-shaped cells for each system of said first system and said second system; and a controller for controlling air supply/release by the air supply/release pump with respect to each system of said first system and second system; wherein said plurality of air cell groups is lined up corresponding to at least a head area, shoulder area, back area, buttock area, thigh area, knee area, and heel area of a person lying on said air mattress, wherein the air cell groups corresponding to at least said back area, buttock area and thigh area out of said plurality of air cell groups are specific air cell groups each of which comprises an upper section, a middle section, and a lower section, wherein air cell groups other than the specific air cell groups are non-specific air cell groups each of which is constituted by one section, and wherein the air cell groups at the lower section of said specific air cell groups and the the plurality of air cell groups out of said non-specific air cell groups are supply/release controlled for each of the systems of said first system, the air cell groups at the upper and middle sections of said specific air cell groups and the remaining air cell groups of said non-specific air cell groups are supply/release-controlled for each of the systems of said second system, and the upper section bladder-shaped cells of said specific air cell groups communicate with the middle section bladder-shaped cells therebeneath.