Cushioning system with parallel sheets having opposing indentions for linear deflection under load
A cushion comprises a first surface made of flexible high polymer resin; a second surface made of flexible high polymer resin, in at least partially coextensive relation to the first surface to define a cavity therebetween, the coextensive relation defining opposing corresponding portions of the first and second surfaces; a plurality of support members comprising inwardly directed indentations in both of the first and second surfaces extending into the cavity, a plurality of the indentations in each of the first and second surfaces having a square shape and an outwardly facing recess, a plurality of the indentations in the first surface abutting the indentations in the second surface; a layer of viscoelastic foam substantially overlying the first surface; and, a fabric enclosure surrounding the first surface, the second surface and the foam layer.
1. A cushion comprising:
(a) a first surface made of flexible high polymer resin;
(b) a second surface made of flexible high polymer resin, in at least partially coextensive relation to said first surface to define a cavity therebetween, said coextensive relation defining opposing corresponding portions of said first and second surfaces;
(c) a plurality of support members comprising inwardly directed indentations in both of said first and second surfaces extending into the cavity, a plurality of the indentations in each of the first and second surfaces having a square shape and an outwardly facing recess, a plurality of the indentations in said first surface abutting said indentations in the second surface;
(d) a layer of visco-elastic foam substantially overlying the first surface; and,
(e) a fabric enclosure surrounding the first surface, the second surface and the foam layer.
2. A cushioning component comprising:
(a) a top surface made of flexible high polymer resin;
(b) a bottom surface made of flexible high polymer resin, in at least partially coextensive relation to said top surface to define a cavity therebetween, said coextensive relation defining opposing corresponding portions of said top and bottom surfaces;
(c) a plurality of support members comprising inwardly directed indentations in both of said top and bottom surfaces extending into the cavity, a plurality of the indentations in each of the top and bottom surfaces being substantially square in cross section and having an outwardly facing recess, a plurality of the indentations in said top surface abutting said indentations in the bottom surface.
3. A cushioning component as recited in claim 2 wherein the force required to compress the cushioning component is a substantially linear function of the deflection comprising the compression.
4. A cushioning component as recited in claim 2 wherein the indentations comprise a substantially planar surface opposite the outwardly facing recess.
5. A cushioning component as recited in claim 2 wherein the indentations comprise two pairs of opposing walls with a rounded section joining each wall to an adjacent wall.
6. A cushioning component as recited in claim 5 additionally comprising a substantially planar surface opposite the outwardly facing recess with a rounded section joining each wall to the substantially planar surface.