Synthetic leather fabrics
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Solution Overview
Problem
Existing seating designs using foam padding or springs result in uneven cushioning and pressure points, leading to discomfort and the need for frequent position changes, while also adding weight and increasing operational costs.
Innovation Solution
A woven fabric with elastic properties in two or more directions, coated with a synthetic leather material, is used as the seating surface, eliminating the need for foam supports or springs and providing consistent support and comfort.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If foam padding or springs are used to provide support, then cushioning is provided, but uneven pressure distribution and discomfort occur
Solution Approach 1:
The patent changes the physical parameters of the support system by using woven fabric with specific elastic moduli in different directions (warp and weft). The fabric's elastic properties are engineered to distribute pressure evenly across the seating surface, eliminating the uneven pressure distribution caused by foam compression or spring deformation while maintaining adequate cushioning support.
Solution Approach 2:
The patent employs composite material construction by combining woven fabric with synthetic leather coating. This composite structure integrates the mechanical support function of the woven fabric base layer with the surface comfort and durability properties of the synthetic leather coating, achieving both pressure distribution uniformity and seating comfort.
2Strength
If foam padding and springs are used, then support is provided, but weight increases and operational costs increase
Solution Approach 1:
The patent extracts and eliminates the foam padding and spring components from the seating structure, retaining only the essential support function. The woven fabric with engineered elastic properties provides the necessary support capability without the additional weight of foam or spring assemblies, directly reducing chair weight while maintaining support strength.
Solution Approach 2:
The patent replaces the mechanical spring system with an elastic fabric membrane system. Instead of using discrete mechanical springs that compress and expand, the woven fabric utilizes its inherent elastic properties to provide support, substituting a distributed elastic membrane for concentrated mechanical spring elements, thereby reducing weight while maintaining support capability.
3Ease of operation
If foam padding is used, then cushioning is provided, but frequent position changes are needed due to pressure points
Solution Approach 1:
The patent modifies the pressure distribution characteristics by changing from compressible foam to elastic woven fabric with controlled moduli. This parameter change creates a more uniform pressure field across the seating surface, eliminating localized pressure points that force users to shift positions, thereby reducing the time lost to position adjustments while maintaining cushioning 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
The woven fabric with synthetic leather coating provides consistent and comfortable seating by distributing pressure evenly, reducing the need for frequent position changes, and minimizing weight and operational costs.
Implementation Method 1
the woven fabrics are elastic in two or more directions
Data Source
AI summary
A woven fabric comprises a plurality of first fibers extending along a first direction, the first fibers having a first modulus of elasticity; a plurality of second fibers extending along a second direction and being woven with the plurality of first fibers, the second fibers having a second modulus of elasticity that is lower than the first modulus of elasticity; and a coating disposed over the plurality of first fibers and the plurality of second fibers. In some embodiments, the coating is a synthetic leather.