Footwear Sole With Nested Arch Support and Tapered Midsole
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Solution Overview
Problem
Traditional leather footwear soles often lack sufficient cushioning and shock absorption, despite their aesthetic appeal and design for replaceable outsole portions.
Innovation Solution
A footwear sole construction featuring a cushioning midsole that tapers in thickness from the heel to the forefoot, supported by a frame with an arch support surface, integrated within an outsole assembly with a leather sidewall and heel cavity, providing both aesthetic appeal and enhanced comfort through shock absorption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If traditional leather footwear soles are used, then aesthetic appeal and replaceable outsole design are maintained, but sufficient cushioning and shock absorption are lacking
Solution Approach 1:
The patent implements a nested sole construction where the leather outsole assembly contains a support frame, which in turn contains the cushioning midsole. This nested structure allows traditional leather aesthetics to be preserved while incorporating modern cushioning technology inside, resolving the contradiction between aesthetic simplicity and functional complexity.
Solution Approach 2:
The sole is divided into distinct functional segments: the outer leather outsole for aesthetics and replaceability, the support frame for structural integrity, and the cushioning midsole for shock absorption. This segmentation allows each component to fulfill its specific function while maintaining the overall traditional appearance.
2Strength
If a cushioning midsole is added to traditional leather footwear, then shock absorption is improved, but the traditional aesthetic appearance may be compromised
Solution Approach 1:
The cushioning midsole is nested within the support frame, which is itself nested within the leather outsole assembly. This nested configuration allows the cushioning elements to be hidden inside the traditional leather sole structure, preserving the classic aesthetic while providing modern shock absorption functionality.
Solution Approach 2:
The cushioning midsole features a tapered thickness profile with greater thickness at the heel region and reduced thickness toward the forefoot. This local variation in cushioning density provides enhanced shock absorption where needed (heel strike) while maintaining a streamlined profile that preserves the traditional sole appearance from external viewing angles.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The design enhances shock absorption and comfort by allowing for a natural transition from heel to toe while maintaining the appearance of a traditional leather sole, offering improved cushioning without compromising the aesthetic features.
Implementation Method 1
A footwear sole construction featuring a cushioning midsole that tapers in thickness from the heel to the forefoot, supported by a frame with an arch support surface, integrated within an outsole assembly with a leather sidewall and heel cavity, providing both aesthetic appeal and enhanced comfort through shock absorption.
Implementation Method 2
supported by a frame with an arch support surface
Data Source
AI summary
A footwear sole includes an outsole assembly having a heel outsole, a forefoot outsole spaced axially apart from the heel outsole by an arch gap, and a sidewall extending between the heel outsole and the forefoot outsole. The sidewall has an elevated bottom edge extending axially along the arch gap on each of a medial and lateral side of the outsole assembly. The footwear sole further includes a support frame in the outsole assembly. The frame has an arch support surface extending axially along the arch gap at an elevation below at least a portion of each bottom edge. The footwear sole further includes a cushioning midsole in the outsole assembly and extending along the arch gap atop the arch support surface.