Composite Skate Boot Insole for Force Transfer and Impact Protection
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Solution Overview
Problem
Existing skates lack optimal manufacturing, comfort, and force transfer efficiency, particularly in terms of rigidity, impact protection, and anatomical fit.
Innovation Solution
A skate boot insole with elevated lateral edges and a vertically bent toe section, combined with an airtight inflatable inner boot and composite materials, enhances force transfer and comfort by preventing lateral yielding and providing rigid support.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a rigid skate boot is used to protect against impacts, then impact protection is improved, but comfort and force transfer are worsened due to lack of anatomical adaptation
Solution Approach 1:
The skate boot is divided into multiple functional layers: an outer rigid shell for impact protection, an intermediate foam layer for cushioning and energy absorption, and an inner anatomically shaped insole for comfort and force transfer. This segmentation allows each layer to perform its specific function optimally without compromising the others.
Solution Approach 2:
The skate boot utilizes composite material construction combining rigid materials (for the outer shell) with flexible foam materials (for the intermediate layer). This composite structure provides both the strength needed for impact protection and the flexibility required for comfort and effective force transfer from the foot to the blade.
2Ease of operation
If a thick inner lining is used to provide a snug fit, then comfort is improved, but force transfer between skate and foot is worsened
Solution Approach 1:
The insole features locally optimized properties with elevated lateral edges that provide firm resistance at specific contact points (heel and forefoot) while maintaining anatomical contours elsewhere. This localized firmness ensures direct force transfer from the foot to the blade without the need for uniformly thick lining that would cushion and reduce force transfer efficiency.
3Force
If the toe section is bent at an angle, then force transfer is optimized, but manufacturing precision requirements are worsened
Solution Approach 1:
The toe section is pre-bent to a specific angle (5-30 degrees relative to the horizontal line) during the insole manufacturing process. This preliminary shaping ensures that when the insole is installed in the finished skate, the toe section is already positioned at the optimal angle for force transfer, eliminating the need for additional field adjustments and simplifying the final assembly process.
4Force
If elevated lateral edges are added to prevent lateral yielding, then force transfer is improved, but device complexity is worsened
Solution Approach 1:
The elevated lateral edges are integrated directly into the insole structure as a continuous anatomical contour rather than being separate components. This merging of the edge support features with the overall insole shape provides the necessary lateral resistance to prevent foot yielding while maintaining a unified, simple structure that does not add significant complexity to the skate assembly.
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 solution improves skater performance by optimizing force transfer, enhancing impact protection, and ensuring a snug, comfortable fit, allowing for faster stops and turns.
Implementation Method 1
The inner boot is formed with airtight flexible inner walls and airtight flexible outer walls so that one or more airtight compartments are obtained, said one or more airtight compartments being provided with a valve so that the one or more airtight compartments are air-inflatable.
Data Source
AI summary
A composite skate having an integral skate blade holder and an anatomically designed insole, as well as an assembly for of a skate including the composite skate and an inflatable inner boot.