Progressive Stage Load Distribution Underlayment System
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Solution Overview
Problem
Existing underlayment systems for impact protection in flooring fail to provide consistent performance across the surface, leading to inconsistent impact absorption and wear patterns, and often increase system cost and complexity while reducing durability.
Innovation Solution
A progressive stage load distributing and absorbing system with 'hat-shaped' absorbing members, featuring a stiff initial load transmission subsystem that transitions to a compliant absorption subsystem, providing a multi-stage response to impact forces and reducing injury risk through controlled load absorption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If conventional underlayment layers are added to provide impact protection, then injury risk reduction is improved, but system cost increases
Solution Approach 1:
The patent combines the load distribution barrier layer and load absorption underlayment into an integrated progressive stage system where the barrier layer is directly coupled to the absorbing members, merging functions that were traditionally separate layers into a unified structure that reduces both injury risk and system complexity
Solution Approach 2:
The system uses composite construction with a barrier layer made from rigid or semi-rigid materials coupled with absorbing members made from resilient materials, creating a composite structure that provides both load distribution and energy absorption while maintaining cost-effectiveness
2Object-affected harmful factors
If conventional underlayment layers are added to provide impact protection, then injury risk reduction is improved, but installation complexity increases
Solution Approach 1:
The patent combines the load distribution barrier layer and load absorption underlayment into an integrated progressive stage system where the barrier layer is directly coupled to the absorbing members, merging functions that were traditionally separate layers into a unified structure that reduces both injury risk and system complexity
Solution Approach 2:
The absorbing members are configured to be self-supporting on the foundation with the barrier layer directly coupled to them, eliminating the need for additional adhesive layers or complex assembly steps, allowing the system to install itself with minimal intervention
3Object-affected harmful factors
If conventional underlayment layers are added to provide impact protection, then injury risk reduction is improved, but durability of top flooring material is reduced
Solution Approach 1:
The patent segments the impact protection function into two distinct components: a barrier layer that distributes loads to prevent premature flooring failure, and absorbing members that dissipate impact energy, separating the protective functions to maintain both flooring durability and impact protection
4Ease of operation
If multiple layers are used to provide comfort and impact protection, then comfort under foot is improved, but system complexity increases
Solution Approach 1:
The patent provides different local properties within the unified structure: the barrier layer provides firm load distribution for stability, while the absorbing members provide compliant energy absorption for comfort, delivering both firmness and cushioning through spatially differentiated functionality rather than multiple layers
Solution Approach 2:
The barrier layer serves multiple functions simultaneously: it distributes loads to protect flooring, provides a stable base for the absorbing members, and contributes to overall structural integrity, eliminating the need for separate layers for each function
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 system effectively mitigates injury from falls by softening footfalls, reducing noise and vibration, and maintaining surface consistency, while being cost-effective and durable, with a low profile design compatible with various flooring materials.
Implementation Method 1
one or more progressive stage hat-shaped absorbing members, each having a relatively stiff load transmission subsystem that delivers force to a relatively compliant stage absorbing subsystem
Implementation Method 2
The compliant stage absorbing subsystem yields in a progressive manner from a first location toward a second location in response to the applied load
Data Source
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AI summary
A progressive stage load distributing and absorbing system that lies below a superstructure material which is exposed to percussive forces. The progressive stage load distributing and absorbing system is interposed between the superstructure material and a foundation. The system has a barrier layer that lies below the superstructure material and an underlayment infrastructure positioned below the barrier layer. Included in the underlayment infrastructure are hat-shaped absorbing members that have a relatively compliant stage subsystem and one or more relatively stiff stage subsystems.