Abstract: A highly stable and slowly adjusted air inflation cushion has: a lower sheet being a sheet like structure; an upper sheet adhered on an upper side of the lower sheet; the upper sheet including a polarity of air inflation cells each of which have a hollow central space; each air inflation cell being an approximate rectangular bottom; a polarity of channels; two adjacent air inflation cells being connected by a respective one of the channels for communicating the air inflation cells connected thereto so that air in the air inflation cells flows from one to another; and wherein a cross section area of the channel is inversely changed with (or inversely proportional to) a pressure applied on an upper side of the channel. A cross section of the channel becomes smaller and smaller from an inner side toward an outer side of the air inflation cushion.

Abstract: An air inflation cushion with cells having helical edges comprises a lower sheet; an upper cushion portion adhered upon the lower sheet; the upper cushion portion including at least one air inflation cell; each air inflation cell having an approximate rectangular cross section and being supported by four helical edges for enhancing the structure of the cell; upper ends of the helical edges being formed as rectangular upper planes; the four helical edges dividing the air inflation cell into four lateral surfaces; a lower portion of each lateral surface being formed with a convex cambered protrusion; and an air tap at one of the cells and extending from one of the helical edges. The air inflation cushion is made of black rubber. The cell is extended with a communication trench which causes two adjacent cells are communicated to one another.

Abstract: An air inflation cushion with cells having helical edges comprises a lower sheet; an upper cushion portion adhered upon the lower sheet; the upper cushion portion including at least one air inflation cell; each air inflation cell having an approximate rectangular cross section and being supported by four helical edges for enhancing the structure of the cell; upper ends of the helical edges being formed as rectangular upper planes; the four helical edges dividing the air inflation cell into four lateral surfaces; a lower portion of each lateral surface being formed with a convex cambered protrusion; and an air tap at one of the cells and extending from one of the helical edges. The air inflation cushion is made of black rubber. The cell is extended with a communication trench which causes two adjacent cells are communicated to one another.