Soft Armor Panel Edge Reinforcement via Layer Folding

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Solution Overview

Problem

Existing soft armor panels often provide reduced protection near their edges, as projectiles can ricochet and cause harm due to inadequate reinforcement, making wearers vulnerable to severe injuries.

Innovation Solution

A soft armor panel design featuring a three-layer construction with a folded portion around the edges, where the first and third layers are stitched together through the second layer, creating a reinforced edge that increases thickness and stopping power without adding an extra layer, using ballistic resilient materials and stitching patterns for enhanced security.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If existing soft armor panels use standard edge construction, then manufacturing is simple, but protection against projectile ricochets is insufficient

Engineering Contradiction:
Improveprotection against projectile ricochetsVSAvoidedge construction complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The armor panel is divided into multiple layers (first layer, second layer, third layer) with the third layer folded back to create distinct functional zones. This segmentation allows the edge portion to be structurally differentiated from the center, providing enhanced ricochet protection through layered construction while maintaining manufacturing feasibility through systematic assembly steps

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The third layer is folded back and nested between the first and second layers at the edge portion, creating a nested multi-layer structure. This nesting approach increases the effective thickness and protection at critical edge areas without significantly increasing the overall panel volume or complexity of the manufacturing process

Inventive Principle:
Principle #7Nested doll (Nesting)

2Strength

If armor material is added to enhance edge protection, then stopping power increases, but weight increases

Engineering Contradiction:
Improvestopping power at edgesVSAvoidpanel weight
Core Design Contradiction:
StrengthVSWeight of moving object

Solution Approach 1:

The enhanced protection structure is applied locally only to the edge portion of the panel where ricochet threats are most likely to occur, rather than uniformly across the entire panel. The third layer is folded back specifically at the edges, providing localized strength enhancement without adding unnecessary weight to the center areas where full protection is not required

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The panel uses a composite layered structure combining multiple layers of ballistic resilient material with different orientations and properties. The first, second, and third layers work together as a composite system, where the folded third layer creates a composite edge structure that provides enhanced stopping power through the synergistic effect of multiple material layers rather than simply adding more material

Inventive Principle:
Principle #40Composite materials

Data Source

PatentUS11137231B2Soft armor fabrication
Publication Date: 2021.10.05 POINT BLANK ENTERPRISES
  • US11137231B2 patent drawing
  • US11137231B2 patent drawing
  • US11137231B2 patent drawing

AI summary

A soft armor panel includes a first layer having a first outward facing surface and an opposite first inward facing surface. The soft armor panel also includes a second layer disposed adjacent to the first inward facing surface of the first layer, the second layer having a proximate end and a distal end. The soft armor panel further includes a third layer disposed adjacent to the second layer opposite the first layer. The third layer has a second outward facing surface and an opposite second inward facing surface, the second inward facing surface facing the second layer. The third layer includes a folded portion extending around at least one of the proximate end or the distal end of the second layer and tucking in between the first layer and the second layer.