| 摘要 |
A removable, three quarter length, innersole for an article of footwear, adapted to provide cushioning and/or support to a foot, comprising: a forward toe portion having a radius edge, a rear heel portion having a radius edge and an intermediate arch cushion portion between said toe and heel portions, wherein said forward toe portion, said rear heel portion and said intermediate arch cushion portion are one-piece; said innersole being resilient and being defined by: a1) a first flat bottom surface, a2) a second upper surface generally convex-shaped to define the contour of the intermediate arch portion of said innersole, and a3) a third concave-shaped surface extending from said bottom surface to said upper surface to define with said upper surface a projection extending upwardly from said bottom surface and outwardly at a distance greater than the tangent of said toe radius edge and said heel radius edge, said projection defining a space beneath said third surface; said innersole permitting said projection to resiliently deform into the space defined by said projection upon application of a load to said innersole.
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