Inversion Footwear Hooked Outsole Dynamics

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Solution Overview

Problem

Existing footwear designs fail to enable users to quickly and easily perform inversion exercises on elevated bars or rings by engaging the elevated bar with either the top surface or heel of the foot, while also allowing for quick disengagement.

Innovation Solution

The development of specialized inversion footwear featuring a rigid outsole with a hooked portion for engaging elevated bars, combined with adjustable straps and traction grips for secure footing and easy attachment/detachment.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a hook member is connected to the shoe to engage with an elevated bar, then the user can hang in an inverted position, but the shoe becomes permanently positioned on the bar and requires complex hand operations to remove

Engineering Contradiction:

Improveengagement reliabilityVSAvoiddisengagement ease

Core Design Contradiction:

ReliabilityVSEase of operation

Solution Approach 1:

The footwear incorporates a flexible outsole that can dynamically change its configuration between engaged and disengaged states. When the user flexes their foot, the outsole transitions from a hooked configuration (engaged with the bar) to a non-hooked configuration (disengaged from the bar), enabling quick release without manual intervention.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The footwear enables self-service operation through foot flexion. The user simply needs to flex their foot to disengage the outsole from the bar, and the footwear automatically releases without requiring the user to use their hands to manipulate hooks or latches.

Inventive Principle:

Principle #25Self-service

2Stability of the object's composition

If the footwear uses a rigid outsole with hooked portion for engaging elevated bars, then engagement stability is improved, but the footwear structure becomes more complex

Engineering Contradiction:

Improveengagement stabilityVSAvoidfootwear structure complexity

Core Design Contradiction:

Stability of the object's compositionVSDevice complexity

Solution Approach 1:

The footwear utilizes a flexible outsole made from materials such as rubber or synthetic polymers that can be molded into a hooked configuration. This flexible shell approach replaces complex mechanical hook mechanisms with a simpler, more adaptable structure that achieves the same engagement function through material flexibility and geometric design.

Inventive Principle:

Principle #30Flexible shells and thin films

3Reliability

If the footwear includes multiple straps and attachment devices for secure footing, then the security of the foot in the footwear is improved, but the ease of putting on and taking off the footwear is reduced

Engineering Contradiction:

Improvefoot securityVSAvoidfootwear donning and doffing ease

Core Design Contradiction:

ReliabilityVSEase of operation

Solution Approach 1:

The footwear employs multiple separate straps (ankle strap, toe strap, heel strap) that can be independently adjusted and secured. This segmentation allows each strap to be tightened or loosened separately, enabling the user to achieve secure foot retention while maintaining the ability to quickly release individual straps for easy removal of the footwear.

Inventive Principle:

Principle #1Segmentation

Data Source

PatentUS12207704B2Footwear for inversion exercises

Publication Date: 2025.01.28 BERTRAND NATHAN

AI summary

An inversion footwear to enable a human to hang in an inverted position from an elevated bar or other elevated device. The inversion footwear can include either a padding at a front upper portion of the inversion footwear, a hook-like extension at a back of the inversion footwear, or a hook at a bottom of the inversion footwear can be used to grip the elevated bar or other elevated device to secure the human wearing the inversion footwear thereto while hanging in an inverted position.