Composite Padding Fluid With Foam Beads for Shock Absorption
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Solution Overview
Problem
Existing lightweight shape-retaining fluids used in padding applications are non-compressible and non-resilient, prone to microballoons floating and viscosity changes with temperature, leading to discomfort and skin breakdown, and fail to meet regulatory requirements for fire resistance, biocompatibility, and chemical stability.
Innovation Solution
Incorporating large closed-cell foam beads into the fluid to create a composite fluid that is lightweight, compressible, and resilient, with the beads taking up more volume and reducing overall weight, allowing for quick recovery from pressure and enhanced shock absorption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Weight of moving object
If lightweight shape-retaining fluids are used in padding applications, then weight reduction is achieved, but the fluids are non-compressible and non-resilient causing discomfort and skin breakdown
Solution Approach 1:
The patent combines microballoons (lightweight filler) with a viscous fluid medium to create a composite fluid that maintains both light weight and compressibility. The microballoons provide weight reduction while the viscous fluid provides the necessary compressibility and resilience, resolving the contradiction between lightweight properties and mechanical comfort properties.
2Weight of moving object
If microballoons are used as lightweight filler, then weight is reduced, but microballoons float and viscosity changes with temperature leading to instability
Solution Approach 1:
The patent selects a specific viscous fluid medium with controlled rheological properties that maintains stable viscosity across temperature variations. The increased viscosity also prevents microballoon floating and suspension issues, stabilizing the composite fluid composition while maintaining the lightweight benefit of microballoon inclusion.
3Ease of manufacture
If existing lightweight fluids are used, then manufacturing is simple, but they fail to meet regulatory requirements for fire resistance, biocompatibility, and chemical stability
Solution Approach 1:
The patent creates a composite fluid system where the viscous fluid medium and microballoon filler are selected to collectively meet fire resistance, biocompatibility, and chemical stability requirements. This composite approach maintains manufacturing simplicity while achieving the necessary regulatory compliance through careful material selection.
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 composite fluid is more compressible and resilient, absorbs shocks and vibrations effectively, and reduces costs while maintaining regulatory compliance and comfort by preventing skin breakdown and maintaining stability across temperatures.
Implementation Method 1
relatively large closed-cell foam beads can be added to a surrounding fluid in large quantities by volume
Implementation Method 2
the lightweight fluids can also be used in comfort seating and bedding products... an inexpensive, lightweight, compressible, resilient, shock absorbing fluid
Implementation Method 3
an inexpensive, lightweight, compressible, shock absorbing and resilient composite fluid for use in padding
Data Source
AI summary
An inexpensive, lightweight, compressible, shock absorbing, and resilient fluid for use in padding applications is presented. A fluid pad can comprise closed-cell foam beads and a surrounding fluid housed in a thin plastic bladder. The closed-cell foam beads can be exactly flooded by the fluid. Alternatively, the fluid can lubricate the closed-cell foam beads. The surrounding fluid may also comprise solid phase microballoons. The addition of the closed-cell foam beads can result in the overall fluid in the bladder being lighter in weight. The fluid pad with the closed-cell foam beads can be compressible and resilient. The fluid pad with the closed-cell foam beads can be shock absorbing with respect to impact loads or vibrations. The addition of the closed-cell foam beads can lower the cost of the fluid pad insert.