Removeable innersole for footwear

作者: Charles F. Schroer , Ronald L. Bracken

DOI:

关键词: Structural engineeringCushioningTangentCushionArchGeologyProjection (mathematics)

摘要: A removable, three quarters length, innersole for an article of footwear, adapted to provide cushioning and/or support a foot. Said comprises forward toe portion having radius edge, rear heel edge and intermediate arch cushion between said portions. The portion, the are one-piece. being resilient. including first flat bottom surface, second upper surface whose contour is generally convex-shaped third concave-shaped extending from define with arched projection upwardly outwardly at distance about equal or greater than tangent edge. defining space beneath surface. permits resiliently deform into defined by upon application load arch.

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