Forefoot Sole Aperture Tuning for Personalized Cushioning

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Solution Overview

Problem

Existing footwear technologies do not effectively customize cushioning characteristics to meet individual user preferences, leading to discomfort and inefficiency in providing optimal fit and comfort.

Innovation Solution

A method of manufacturing footwear that involves a customizable sole member with apertures to adjust cushioning levels, allowing users to provide feedback for iterative improvements based on their preferences, resulting in a personalized forefoot cushioning experience.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a single cushioning level is provided for the entire forefoot region, then the manufacturing process is simple, but the comfort and performance for different users are compromised

Engineering Contradiction:
Improvecushioning customizationVSAvoidsole structure
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The forefoot region is divided into multiple zones (medial, lateral, and central forefoot) with different cushioning characteristics. This segmentation allows each zone to provide optimized cushioning for its specific function while maintaining overall sole integrity, resolving the contradiction between customization and structural simplicity.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Different materials and constructions are applied to different forefoot zones based on their specific functional requirements. The medial forefoot uses materials optimized for arch support, the lateral forefoot for stability, and the central forefoot for cushioning, allowing local optimization without complicating the entire sole structure.

Inventive Principle:
Principle #3Local quality

2Reliability

If multiple cushioning levels are created using different materials and constructions, then cushioning performance is improved, but the manufacturing complexity increases

Engineering Contradiction:
Improvecushioning performanceVSAvoidsole manufacturing
Core Design Contradiction:
ReliabilityVSEase of manufacture

Solution Approach 1:

The different cushioning zones are pre-formed as separate components with their specific materials and constructions already in place. These pre-formed zones are then assembled into the complete sole, allowing for optimized cushioning performance while simplifying the manufacturing process through modular assembly rather than complex multi-step formation.

Inventive Principle:
Principle #10Preliminary action

3Adaptability or versatility

If the entire forefoot region is optimized for one function, then the manufacturing process is simplified, but the ability to meet diverse user needs is reduced

Engineering Contradiction:
Improvefunctional optimizationVSAvoidmanufacturing efficiency
Core Design Contradiction:
Adaptability or versatilityVSProductivity

Solution Approach 1:

The sole is designed as a multi-functional system where different zones serve different purposes (arch support, stability, cushioning) within a single integrated structure. This universal design allows the sole to meet diverse user needs across different activities and foot types while maintaining manufacturing efficiency through a unified construction approach.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Data Source

PatentEP4533973B1Method of customizing forefoot cushioning in articles of footwear
Publication Date: 2026.05.13 NIKE INNOVATE CV
  • EP4533973B1 patent drawingFigure 1
  • EP4533973B1 patent drawingFigure 2~3
  • EP4533973B1 patent drawingFigure 4

AI summary

A method of manufacturing articles of footwear, comprising: providing a user with a rating system for evaluating a first level of forefoot cushioning for a first sole member of a first article of footwear, the first sole member being formed from a first base sole layer; requesting that the user provide a customer-selected rating of the first level of forefoot cushioning; receiving the customer-selected rating from the user for the first level of forefoot cushioning; selecting a second base sole layer similar to the first base sole layer; forming at least a first aperture in a forefoot portion of the second base sole layer to form a second sole member with a second level of forefoot cushioning, wherein the second level of forefoot cushioning is determined based on the customer-selected rating of the first level of forefoot cushioning in the first article of footwear; and providing the user with a second article of footwear including the second sole member.