VOID CELLS WITH OUTWARDLY CURVED SURFACES
A cushioning structure (100) comprises a first array (106) of spaced apart elastically deformable void cells (102, 104, 200), wherein each of the void cells include four sidewalls forming a rectangular outline (204); at least two of the sidewalls each include one outwardly curved surface (110, 210)...
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Zusammenfassung: | A cushioning structure (100) comprises a first array (106) of spaced apart elastically deformable void cells (102, 104, 200), wherein each of the void cells include four sidewalls forming a rectangular outline (204); at least two of the sidewalls each include one outwardly curved surface (110, 210) and at least two inwardly curved surfaces (126, 226). The outwardly curved surfaces have concave curvatures that face away from the interior of a void cell, and the inwardly curved surfaces have concave curvatures that face toward the interior of the void cell. The outwardly curved surfaces constitute at least 20% of the overall exterior surface area of each void cell.The cushioning structure (100) may further comprise a second array (108) of elastically deformable void cells, wherein peak surfaces of peak portions of void cells in the second array (108) of void cells are attached to peak surfaces of peak portions of void cells in the first array (106). |
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