Removable Footwear Insert Liner for Odor and Slippage Control
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Solution Overview
Problem
Conventional solutions for wearing shoes without socks lead to odor issues, foot slippage, and discomfort due to moisture buildup, with existing low-cut socks being inconvenient and requiring frequent adjustments, and powder applications being cumbersome and expensive.
Innovation Solution
A semi-permanent, removable insert liner with antimicrobial and wicking properties, featuring a hook and loop fastener system that adheres to the shoe interior, providing a comfortable, moisture-wicking, and odor-controlling solution that can be easily washed and reattached.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If conventional low-cut socks are used to wear shoes without socks, then the appearance requirement is met, but the socks slip off the user's foot requiring frequent adjustment
Solution Approach 1:
The insert liner is divided into multiple functional zones: a moisture-wicking inner layer contactin the foot, an adhesive layer for securing to the shoe, and an outer layer providing comfort. This segmentation allows each zone to perform its specific function optimally while working together as a unified system that prevents slippage.
Solution Approach 2:
The adhesive layer acts as an intermediary between the sock and the shoe, creating a stable connection that eliminates the slippage problem. This intermediary layer allows the sock to remain in position without requiring elastic bands or other securing mechanisms that compromise comfort or appearance.
2Reliability
If conventional low-cut socks with elastic bands are used to prevent slippage, then the stability is improved, but the comfort and appearance are degraded
Solution Approach 1:
The adhesive layer serves as an intermediary that provides secure attachment without the need for elastic bands. This eliminates the uncomfortable constriction around the ankle while maintaining reliable positioning of the sock within the shoe.
Solution Approach 2:
The mechanical elastic band system is replaced with a chemical adhesive system. The adhesive provides the necessary holding force through molecular bonding rather than mechanical constriction, eliminating discomfort while maintaining stability.
3Object-affected harmful factors
If powder is applied to the interior cavity of the shoe to absorb moisture, then the moisture absorption is improved, but the convenience and cost are degraded due to frequent reapplication
Solution Approach 1:
The moisture-wicking capabilities are built into the insert liner itself during manufacturing, eliminating the need for separate powder application. The wicking material is pre-positioned where it is most effective, and the adhesive secures it in place for continuous moisture management throughout the day.
Solution Approach 2:
The moisture-wicking function is merged with the structural insert liner that provides comfort and fit. This combines multiple functions (moisture management, comfort, and positioning) into a single integrated component, eliminating the need for separate powder applications.
4Ease of operation
If shoes are worn without any protective covering, then the comfort and breathability are improved, but odor and moisture buildup increase
Solution Approach 1:
The insert liner provides localized protection where it is most needed - the adhesive layer secures the liner to the shoe interior, the wicking material manages moisture at the foot-shoe interface, and the structure maintains breathability. This local quality approach addresses harmful factors without compromising overall comfort.
Solution Approach 2:
The insert liner converts the harmful moisture produced by the foot into a beneficial effect by channeling it through the wicking material to the adhesive layer and shoe interior, where it can evaporate. This transforms the problem of moisture buildup into an controlled evaporation process that reduces odor and discomfort.
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 insert liner effectively manages moisture, reduces odor, and maintains comfort by adhering securely to the shoe interior, allowing for easy use and reattachment, while maintaining a 'no show' appearance and eliminating the need for frequent adjustments or powder applications.
Implementation Method 1
The fabric layer is configured to stretch around the user's foot to expand the wicking material and the antimicrobial material of the yarns
Implementation Method 2
The insert liner is adhered, fastened, coupled, and/or semi-permanently bonded to the inside of the shoe
Data Source
AI summary
An insert liner is provided and is configured to be removably received in an inner cavity of a shoe. The elastomeric liner includes: a longitudinal portion; opposing first and second lateral portions; and opposing front and rear portions, wherein the longitudinal, lateral, front, and rear portions define a cavity having an opening configured below the opposing front and rear portions and configured to receive a user's foot; and a fastener coupled to at least the front portion and the rear portion of the liner while being bond free relative to a toe portion of the shoe, the front portion is configured to releasably adhere to the tongue portion to maintain the opening below an upper edge of at least one of the heel portion and the opposing sidewall portions and to define the opening configured to receive the user's foot.