High-Heel Tip Cushion With Threaded Insert Anchoring
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Solution Overview
Problem
Conventional high heel tips wear out quickly, are prone to detachment, cause harmful shock waves, and pose safety risks due to metal nails, leading to chronic injuries and noise.
Innovation Solution
A heel tip assembly with a micro honeycomb structure and anti-rotation features, using resilient materials and secure attachment mechanisms like threaded inserts and expansion anchors to prevent rotation and slippage, providing long-lasting wear and shock absorption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If conventional heel tips with metal nails are used, then the heel tip can be securely attached to the heel, but the heel tip wears out quickly and causes harmful shock waves
Solution Approach 1:
The patent removes the metal nail component from the heel tip assembly and replaces it with a threaded shaft made of resilient material. This extraction of the harmful metal element eliminates the shock wave transmission and noise while maintaining secure attachment through threading mechanisms.
Solution Approach 2:
The heel tip is constructed from composite materials including resilient rubber or polymer materials that provide both secure attachment capability and shock absorption. The threaded shaft is made of resilient material rather than metal, creating a composite structure that combines attachment strength with shock wave dampening properties.
2Strength
If conventional heel tips with metal nails are used, then the heel tip can be securely attached to the heel, but harmful shock waves are transmitted through the body
Solution Approach 1:
The patent converts the previously harmful metal nail into a beneficial resilient threaded shaft that provides both secure attachment and shock absorption. The resilient material of the threaded shaft transforms the shock wave transmission problem into a benefit where the same component now dampens shock waves while maintaining attachment strength.
Solution Approach 2:
The use of resilient rubber or polymer materials for the threaded shaft creates a composite structure that inherently dampens shock waves. This material choice simultaneously provides attachment strength through threading and eliminates harmful shock wave transmission to the wearer's body.
3Strength
If conventional heel tips with metal nails are used, then the heel tip can be attached to the heel, but the nail head can mark, scrape and damage floors
Solution Approach 1:
The patent extracts the metal nail head from the heel tip assembly and replaces it with a resilient threaded shaft. This removal of the hard metal element eliminates the scratching and marking of floor surfaces while the threaded shaft maintains secure attachment through its threading mechanism.
Solution Approach 2:
The patent changes the material parameter of the attachment component from hard metal to resilient rubber or polymer. This parameter change transforms the component from one that damages floors to one that protects floors, while still providing sufficient attachment strength through the threading mechanism.
4Strength
If conventional heel tips with metal nails are used, then the heel tip can be attached to the heel, but the exposed metal nail makes a loud clicking sound
Solution Approach 1:
The patent removes the metal nail component that generates the clicking noise and replaces it with a resilient threaded shaft. This extraction eliminates the loud clicking sound produced by metal striking the floor while the threaded shaft maintains secure attachment through its threading mechanism.
Solution Approach 2:
The patent changes the material parameter of the attachment component from metal to resilient rubber or polymer. This material parameter change eliminates the noise generation by preventing the striking sound, while the threading mechanism preserves the attachment strength function.
5Ease of manufacture
If conventional heel tips are used, then they can be easily manufactured, but they wear out completely within a few weeks of use
Solution Approach 1:
The patent uses composite materials including resilient rubber or polymer for the entire heel tip assembly, replacing the traditional metal nail construction. This material substitution enables the heel tip to withstand wear and tear for extended periods while remaining manufacturable through conventional molding processes.
Solution Approach 2:
The patent changes the material parameter from metal to resilient material, which fundamentally improves wear resistance and service life. The resilient material can deform and absorb stress without fracturing, allowing the heel tip to last for months or years instead of weeks, while still being easily manufactured.
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 heel tip assembly significantly reduces shock wave transmission, prevents detachment, and enhances safety by using durable materials and secure attachment methods, ensuring prolonged use and comfort.
Implementation Method 1
the rubber material of this invention stops the harmful shock waves that accumulate over time as damage to the body from our feet to the base of our skull from the repeated exposure the shock waves caused by daily activity
Data Source
AI summary
A high heel footwear including a heel tip assembly and a heel assembly. The heel tip assembly includes a top lift abutting against the heel, a rigid shaft member having a threaded portion, and a first wedge-lock feature configured to prevent the top lift from rotating. The heel assembly includes a threaded insert, a spring, a hollow insert, and a second wedge-lock feature. The threaded insert is received inside an opening formed in the heel to receive the threaded portion of the rigid shaft member. The spring is also received inside the opening and abuts against the threaded insert. The hollow insert abuts against the spring. The rigid shaft member passes through the threaded insert, the spring, and the hollow insert. The second wedge-lock feature locks with the first wedge-lock feature to retain the top lift on the end of the heel.