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Air mattress

  • US 9,597,244 B2
  • Filed: 10/19/2010
  • Issued: 03/21/2017
  • Est. Priority Date: 02/05/2010
  • Status: Active Grant
First Claim
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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 informationwherein;

    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.

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