Rollable Handgun Ballistic Shield with Resilient Self-Deploying Panel
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Solution Overview
Problem
Existing handgun shields are either heavy and cumbersome or lack sufficient ballistic protection when folded, and existing rollable shields are slow to deploy and prone to malfunction.
Innovation Solution
A lightweight, rollable handgun shield made of flexible ballistic fabric and resilient panels that deploys in under one second with a single-hand release, featuring a carrier with a resilient panel that returns to its unrolled shape and includes a rib assembly for enhanced stability and ballistic performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a rigid ballistic shield is used to provide comprehensive protection, then ballistic protection capability is improved, but the shield becomes heavy and cumbersome to carry and deploy
Solution Approach 1:
The shield is divided into multiple rigid panels that are hinged together, allowing the shield to be segmented for storage and reassembled for use. This segmentation reduces the weight that must be carried at once while maintaining full protection capability when deployed.
Solution Approach 2:
The shield transitions from a static rigid structure to a dynamic deployable structure. The hinged panels allow the shield to be collapsed for easy carrying and then expanded to form a rigid protective barrier when needed, optimizing both portability and protection.
2Stability of the object's composition
If a rigid ballistic shield is used to maintain shape and provide protection, then structural stability is improved, but the shield becomes difficult to store in patrol cars and advance in constrained spaces
Solution Approach 1:
The shield's segmentation into hinged panels enables it to be collapsed into a compact configuration for storage in patrol car compartments and easy maneuvering through narrow hallways and doorways, while maintaining full structural integrity when deployed.
Solution Approach 2:
The shield transitions between two-dimensional folded/collapsed state for storage and a three-dimensional expanded state for protection, utilizing dimensional transformation to resolve the conflict between compact storage and full protective capability.
3Weight of moving object
If a soft ballistic blanket is used to reduce weight and improve compactness, then portability is improved, but the blanket cannot stand under its own weight and requires time-consuming installation of stiffening rods
Solution Approach 1:
The rigid panels are pre-assembled and hinged together in the storage configuration, so that when deployed, they automatically form a stable rigid structure without requiring post-deployment assembly or installation of stiffening rods, eliminating time-consuming setup steps.
Solution Approach 2:
The shield combines rigid ballistic-resistant panels with hinged connections, creating a composite structure that maintains rigidity when deployed while remaining compact for storage, eliminating the need for soft blankets and external stiffening components.
4Strength
If overlapping panels are used to construct a rollable shield, then ballistic protection is improved, but the shield sustains added weight and diminished compactness
Solution Approach 1:
The shield uses precisely engineered rigid panels with hinged connections that fit together in a compact folded configuration, providing full ballistic protection without the excessive weight and bulk associated with overlapping panel designs.
Solution Approach 2:
The panel dimensions, hinge configurations, and material properties are optimized to achieve the minimum necessary ballistic protection while minimizing the rolled volume and weight, balancing protection requirements with portability constraints.
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 shield provides rapid deployment, maintains shape under its own weight, and offers comprehensive ballistic protection against handgun threats while being compact and easy to carry, suitable for various operational scenarios.
Implementation Method 1
a resilient panel, the resilient panel being a body that is rollable but, with a spring force, returns to its unrolled shape when permitted to unroll
Data Source
AI summary
A rollable ballistic shield that has a carrier having a strike face and a rear face opposite the strike face, a flexible ballistic panel inside the carrier facing the rear face, the flexible ballistic panel being comprised of a plurality of sheets ballistic fabric; and a resilient panel inside the carrier and facing the strike face, the resilient panel being a body that is rollable but returns to its unrolled shape when permitted to unroll.