Fluid-Controlled Foot Support Pressure in Multi-Bladder Footwear
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Solution Overview
Problem
Conventional footwear lacks an efficient system for dynamically controlling foot support pressure, which can lead to discomfort and inadequate support during various activities.
Innovation Solution
The development of a fluid flow control system integrated into footwear, utilizing a manifold, valve stem, or solenoid-based mechanisms to manage fluid pressure within bladders and containers, allowing for adjustable foot support pressure through various operational states.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional footwear structures are used, then the footwear is simple and easy to manufacture, but the foot support pressure cannot be dynamically controlled
Solution Approach 1:
The footwear is divided into functional zones with multiple bladders (heel bladder, midfoot bladder, forefoot bladder) that can be independently controlled. Each bladder segment can adjust pressure separately to provide targeted support where needed while maintaining overall system simplicity
Solution Approach 2:
The fluid distribution system serves multiple functions: it provides structural support, adjusts pressure dynamically, and adapts to different activities. The same manifold and valve system that controls bladder pressure also enables the footwear to transition between different operational states (walking, running, standing) without requiring separate mechanisms
2Ease of operation
If fixed foot support pressure is used, then the footwear structure is simple, but comfort and support are inadequate during various activities
Solution Approach 1:
The footwear transitions from static pressure to dynamic pressure control through solenoid valves that can rapidly adjust fluid distribution. The system adapts pressure in real-time based on activity state, providing optimal comfort and support for walking, running, or standing without requiring complex manual adjustment mechanisms
Solution Approach 2:
The system uses the user's own foot movements and weight distribution to trigger pressure adjustments. Sensors detect when the user enters different activity states and automatically adjust bladder pressure accordingly, eliminating the need for external control while enhancing comfort
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 system provides customizable foot support pressure, enhancing comfort and performance by allowing for dynamic adjustments based on activity level and user input, thereby improving overall footwear functionality.
Implementation Method 1
the fluid flow controller includes a solenoid valve having a valve body, a movable valve core, and a coil assembly
Implementation Method 2
fluid pressure in one or more fluid filled bladders... may be changed and controlled
Data Source
AI summary
Foot support systems include a fluid flow control system that facilitates movement of fluid into, out of, and/or within a sole structure and/or article of footwear, e.g., to change and/or control pressure in fluid filled bladder(s). Aspects of this technology may relate to one or more of: (a) footwear structures in which such systems are incorporated; (b) valve stem based fluid flow transfer systems; (c) solenoid based fluid flow transfer systems; (d) user input button features; (e) air filter features; (f) fluid tube to fluid distributor connection features; (g) fluid distributor to footwear connection features; (h) valve position sensor features; (i) valve transmission features; (j) pressure control algorithm features; (k) electronic communication features; (l) system sealing features; and/or (m) pressure sensor mounting features.