Shoe Sole with Region-Specific Grooves and Tread Members

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Solution Overview

Problem

Existing shoe soles lack a structured design that provides varying levels of flexibility and traction across different regions, leading to inadequate performance in specific areas such as heel, midfoot, metatarsal, ball, and toe regions.

Innovation Solution

A shoe sole design featuring a longitudinal extension with distinct regions (heel, midfoot, metatarsal, ball, and toe) incorporating a plurality of tread members and grooves, where groove and tread widths and depths vary across regions to provide tailored flexibility and traction, with some grooves and tread members arranged in a zigzag pattern for enhanced grip.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a uniform sole design is used, then manufacturing is simple, but flexibility and traction performance are inadequate in specific regions

Engineering Contradiction:
Improvetraction performanceVSAvoidsole structure complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The sole is divided into multiple distinct regions (heel region, midfoot region, metatarsal region, ball region, and toe region), each with its own specific tread members and grooves configured to address the unique functional requirements of that region, thereby improving overall traction performance through specialized design

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Each sole region is equipped with tread members and grooves having specific width and depth characteristics tailored to that region's needs, creating localized optimal performance for flexibility and traction in each area rather than using a uniform design throughout

Inventive Principle:
Principle #3Local quality

2Ease of operation

If groove width is increased for better flexibility, then flexibility improves, but traction may be reduced

Engineering Contradiction:
ImproveflexibilityVSAvoidtraction
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The groove width is varied by region, with wider grooves in regions requiring greater flexibility (such as the toe region) and narrower grooves in regions requiring stronger traction (such as the heel region), allowing each region to optimize the flexibility-traction balance according to its functional requirements

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The groove dimensions (width and depth) are systematically varied across different sole regions to achieve the desired balance between flexibility and traction, with parameters changing progressively from one region to another based on functional needs

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentUS10321736B2Shoe having sole with transverse grooves and tread members
Publication Date: 2019.06.18 COLE HAAN LLC
  • US10321736B2 patent drawing
  • US10321736B2 patent drawing
  • US10321736B2 patent drawing

AI summary

A shoe includes an upper and a sole secured to the upper. The sole includes transversely extending tread members and transversely extending grooves. The width of a tread member in a midfoot region is greater than the width of a tread member in a heel region and greater than the width of a tread member in a metatarsal region. The width of a groove in a ball region is greater than a width of a groove in a toe region and greater than the width of a groove in the metatarsal region.