Composite fabrics combining high and low strength materials
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Solution Overview
Problem
Conventional tactical vest covers with PALS/MOLLE construction are heavy and lack streamlined mobility due to their three-dimensional grid design, which is not durable enough, leading to sagging and potential tearing of attachment points after repeated use.
Innovation Solution
A composite material combining low tenacity, abrasion-resistant fabrics with high tenacity materials in a unitary construction, where the layers are bonded with an adhesive that penetrates into the lower tenacity layer without fully permeating it, creating a hybrid structure for improved strength and durability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional PALS/MOLLE construction with heavy-duty nylon webbing grid is used, then attachment functionality is provided, but weight increases and mobility is reduced
Solution Approach 1:
The patent removes the separate PALS webbing grid layer from the vest construction, extracting only the essential attachment functionality. Slots are directly formed in the vest cover fabric itself, eliminating the need for the additional heavy-duty nylon webbing grid while maintaining pouch attachment capability.
Solution Approach 2:
The patent combines the attachment system with the vest cover fabric by forming slots directly in the cover material. This merging of the attachment system into the existing fabric structure eliminates the need for separate webbing layers, reducing overall weight while maintaining functionality.
2Reliability
If PALS webbing grid is used for attachment points, then attachment functionality is achieved, but the three-dimensional structure lacks streamlined mobility
Solution Approach 1:
The patent extracts the protruding three-dimensional webbing grid structure and replaces it with flat slots formed directly in the vest cover fabric. This creates a streamlined, low-profile surface that improves mobility while maintaining attachment functionality through the slots.
3Weight of moving object
If slots are cut into vest cover fabric for webless attachment system, then weight is reduced, but fabric durability decreases leading to sagging and tearing
Solution Approach 1:
The patent employs a composite construction with multiple fabric layers having different properties. A primary fabric layer provides abrasion resistance, while a secondary high-strength layer (such as nylon or polyester) provides tensile strength and dimensional stability. This composite structure prevents sagging and tearing at slot openings while maintaining the lightweight webless design.
Solution Approach 2:
The patent applies different material properties to different regions of the vest cover. Areas with slots incorporate reinforced composite construction with high-strength fibers, while other areas maintain the original fabric composition. This localized reinforcement provides durability exactly where needed (at slot openings) without adding weight throughout the entire vest.
4Duration of action of moving object
If repeated use of slot attachment system occurs, then attachment functionality is maintained, but fabric integrity deteriorates causing sagging
Solution Approach 1:
The composite fabric construction with high-strength fibers provides resistance to repeated attachment and detachment cycles. The secondary layer with superior tensile properties prevents the fabric from sagging or deforming over time, maintaining dimensional stability while preserving attachment functionality.
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 material provides enhanced strength, dimensional stability, and durability for webless modular attachment systems while maintaining abrasion resistance, reducing the likelihood of sagging and tearing, and improving overall performance compared to traditional systems.
Implementation Method 1
the first fibrous material layer and the second fibrous material layer are bonded together with an adhesive that penetrates into the first fibrous material layer without fully permeating the first fibrous material layer
Data Source
AI summary
Composite materials combining both high and low strength fibrous materials. More particularly, composite materials that are useful as lightweight vest covers for tactical vests and that are suitable for the formation of alternatives to conventional Modular Lightweight Load-carrying Equipment (MOLLE).