Interchangeable Sole Athletic Shoe via Strap Aperture Mechanism

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Solution Overview

Problem

The high cost and frequent replacement needs of specialized athletic shoes for different sports, due to varying tread requirements, make them unaffordable for many, especially children, and can lead to performance disadvantages and increased injury risks when unsuitable footwear is used.

Innovation Solution

A modular athletic shoe design featuring a removable and interchangeable sole with customizable treads for various sports, allowing a single pair of shoes to be adapted for multiple sports through easy attachment and detachment via straps and apertures, ensuring secure fit and easy manufacturing.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If specialized footwear is purchased for each sport, then performance and safety are improved, but cost and device complexity increase

Engineering Contradiction:
Improveperformance and safetyVSAvoidfootwear variety
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The shoe upper is designed to be compatible with multiple sole types, allowing a single shoe upper to serve multiple sports functions. The standardized attachment mechanism enables the same shoe upper to accommodate soles with different treads for various surfaces (grass, turf, rubberized track, court surfaces), eliminating the need for multiple specialized shoes while maintaining sport-specific performance characteristics

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

Solution Approach 2:

The footwear system is divided into separate functional components: a reusable shoe upper and interchangeable soles. This segmentation allows the upper portion to be purchased once and reused across multiple sports, while only the costlier sole components need to be replaced or swapped depending on the sport, reducing overall cost and complexity

Inventive Principle:
Principle #1Segmentation

2Reliability

If specialized footwear is purchased for each sport, then performance and safety are improved, but affordability deteriorates

Engineering Contradiction:
Improveperformance and safetyVSAvoidcost
Core Design Contradiction:
ReliabilityVSQuantity of substance

Solution Approach 1:

A single shoe upper serves multiple sports functions by accommodating different soles, reducing the total number of shoe purchases needed. This multi-functionality allows families, especially those with children whose feet grow frequently, to invest in one quality upper and replace only the less expensive soles as needed

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

Solution Approach 2:

The shoe upper is designed to be a durable, reusable component that can be retained across multiple sports and over time, while the soles are the components that may need replacement. This allows recovery and reuse of the more expensive upper portion, reducing overall cost

Inventive Principle:
Principle #34Discarding and recovering

3Adaptability or versatility

If a removable sole system is implemented, then adaptability and ease of manufacture are improved, but device complexity increases

Engineering Contradiction:
Improvesole interchangeabilityVSAvoidattachment mechanism
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The footwear is segmented into a shoe upper with an attachment section and a separate removable sole with corresponding attachment features. This segmentation enables easy interchangeability while keeping each component relatively simple in design, with the attachment mechanism serving as a straightforward interface between the two parts

Inventive Principle:
Principle #1Segmentation

Data Source

PatentUS11051576B2Shoe with interchangeable sole
Publication Date: 2021.07.06 FINA PAUL
  • US11051576B2 patent drawing
  • US11051576B2 patent drawing
  • US11051576B2 patent drawing

AI summary

A shoe having a removable sole is provided. The shoe includes one or more straps that are insertable through corresponding apertures in the soles to attach a sole to a base of the shoe. The removable soles provide a shoe with capability to interchange soles, thereby providing for specialized soles to supply for a single shoe, which allows use of the shoe with various athletic sports.