US 8,024,828 B2 · Air cell

Abstract

An object of the present invention is to provide an air cell which is capable of detecting that the upper end side and the lower end side of the air bag are nearer than a predetermined distance. This air cell has an air bag, a base member to which the lower end portion of the air bag is attached, an air chamber AR configured by the air bag and the upper surface of the base member, a thin film portion which forms the bottom surface of the air chamber and capable of deforming elastically in the up-and-down direction, an extending member configured to extend upwardly from the upper surface of the thin film portion, detecting means which is provided under the thin film portion and which detects downward deformation of the thin film portion.

Claims12

Dependent claims

An air cell used by being mounted on the seating surface or bed to prevent bed sores which generate on a seated person or a patient, the air cell comprising:

an air bag configured to be able to contain air in its interior and terminating at an opening end portion which defines an opening portion;
a base member to which the opening end portion of the air bag is attached, the base member being configured to close the opening portion of the air bag;
an air chamber configured by air bag and the upper surface of the base member;
a thin film portion provided at the upper surface of the base member which forms the bottom surface of the air chamber, the thin film portion capable of elastically deforming in the up-and-down direction;
an extending member provided in the air chamber, the extending member configured so as to extend upwardly from the upper surface of the thin film portion;
and
detecting means provided under the thin film portion, the detecting means for detecting downward deformation of the thin film portion.

4 more elements

An air cell used by being mounted on the seating surface or bed to prevent bed sores which generate on a seated person or a patient, the air cell comprising:

an air bag configured to be able to contain air in its interior and terminating at an opening end portion which define an opening portion;
a base member to which the opening end portion of the air bag is attached, the base member being configured to close the opening portion of the air bag;
an air chamber configured by air bag and the upper surface of the base member;
a thin film portion provided at the upper surface of the base member which forms the bottom surface of the air chamber, the thin film portion capable of elastically deforming in the up-and-down direction;
a movable member provided in the air chamber and disposed above the thin film portion;
an urging member provided in the air chamber, the urging member supporting the movable member so as to be capable of moving in the up-and-down direction, the urging member capable of urging the movable member upwardly;
and
detecting means provided under the thin film portion, the detecting means for detecting downward deformation of the thin film portion.

5 more elements

Dependencies are inferred from the claim text.

Air cell

Life of this patent

Air cell

Life of this patent

Abstract

Claims12