Interconnected Bladder Chambers for Dynamic Foot Tilt Adjustment
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Solution Overview
Problem
Conventional footwear lacks an effective mechanism to dynamically adjust foot tilt and support during various activities, leading to potential discomfort and inefficiency.
Innovation Solution
The integration of interconnected fluid-filled bladder chambers within the sole structure of footwear, which allows fluid to move between chambers via a fluid flow control system, inducing foot tilt and providing dynamic support.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional footwear structures are used, then the footwear provides basic foot coverage and support, but the footwear lacks dynamic adjustment capability for foot tilt and support
Solution Approach 1:
The foot support system is divided into multiple independent bladder chambers (first bladder chamber, second bladder chamber, third bladder chamber) that can be individually controlled. Each chamber can be selectively inflated or deflated to independently adjust support at different foot regions (heel, midfoot, forefoot), enabling dynamic tilt adjustment without requiring a completely complex new structure.
Solution Approach 2:
The patent uses fluid-filled bladder chambers connected to a fluid distribution system that can selectively inflate or deflate specific chambers. By controlling fluid movement between chambers using pumps or pressure differentials, the system dynamically adjusts foot support and tilt angle without complex mechanical linkages or actuators.
2Adaptability or versatility
If fluid-filled bladder chambers are integrated into the sole structure, then dynamic foot tilt adjustment is enabled, but the device complexity increases
Solution Approach 1:
The fluid distribution system serves multiple functions: it inflates and deflates different bladder chambers, adjusts foot tilt angle, provides arch support, and adapts to various footwear types. This multi-functionality reduces the need for separate systems for each function, thereby limiting the increase in overall device complexity despite the added capability.
Solution Approach 2:
The patent combines the foot support function with the footwear sole structure by integrating bladder chambers directly into the midsole or insole layers. The fluid distribution system is merged with the existing footwear construction, eliminating the need for separate external support mechanisms and reducing overall system complexity.
3Ease of operation
If interconnected bladder chambers are used to induce foot tilt, then comfort and performance are enhanced, but the manufacturing complexity increases
Solution Approach 1:
The bladder chambers are nested within the footwear sole structure, with the first, second, and third bladder chambers positioned at different locations and orientations within the midsole or insole layers. This nesting approach allows integration during the footwear manufacturing process without requiring separate assembly steps, thereby limiting manufacturing complexity.
Solution Approach 2:
The patent uses composite construction combining flexible bladder materials (such as thermoplastic polyurethane or rubber) with the footwear sole materials (EVA, polyurethane foam, or thermoplastic compounds). These composite materials can be co-molded or heat-sealed together during manufacturing, simplifying production despite the interconnected chamber design.
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
This solution enables dynamic adjustment of foot tilt and support, enhancing comfort and performance during activities by allowing for fluid movement between bladder chambers, thus altering the angular orientation of the foot support system.
Implementation Method 1
interconnected fluid-filled bladder chambers where fluid is movable between the chambers to induce foot tilt
Data Source
AI summary
Sole structures, foot support systems, articles of footwear, and/or other devices include movable fluid that induces foot tilt, e.g., forefoot tilt. These components may include first and second side foot support bladder chambers; a fluid flow control system that moves fluid through each of first and second fluid flow paths; a first fluid line connecting the fluid flow control system with the first side foot support bladder chamber; and a second fluid line connecting the fluid flow control system with the second side foot support bladder chamber. In the first fluid flow path, fluid moves from the first side foot support bladder chamber to the second side foot support bladder chamber through the fluid flow control system. In the second fluid flow path, fluid moves from the second side foot support bladder chamber to the first side foot support bladder chamber through the fluid flow control system.