Detachable Ballistic Desk Top Shield for Active Shooter Protection

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Solution Overview

Problem

Existing school safety measures do not adequately empower individual students to protect themselves in active shooter situations, despite the implementation of locks, metal detectors, and security guards.

Innovation Solution

A removable ballistic desk top with laminated layers of ballistic materials, designed to be used as a shield, which can be retrofitted to existing desks or manufactured as part of a new desk, featuring quick-release mechanisms and handles for easy detachment and use.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If ballistic protection is integrated into school desks, then student protection capability is improved, but device complexity and weight increase

Engineering Contradiction:
Improvestudent protection capabilityVSAvoiddesk structure complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The ballistic shield is designed as a detachable component that can be separated from the desk frame, allowing the desk to function normally during regular use and be quickly converted into a protective shield when needed. This segmentation resolves the contradiction by providing protection capability without permanently complicating the desk structure.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The desk top serves dual functions: as a normal school desk surface during regular activities and as a ballistic shield during emergencies. This multi-functionality improves protection capability while avoiding permanent structural complexity, as the same component performs both roles.

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Reliability

If ballistic materials are used in the desk top, then protection effectiveness is improved, but weight of the desk increases

Engineering Contradiction:
Improveprotection effectivenessVSAvoiddesk top weight
Core Design Contradiction:
ReliabilityVSWeight of moving object

Solution Approach 1:

The ballistic protection layer is separated from the main desk structure, allowing it to be removed when not needed. This reduces the effective weight during normal use while maintaining protection effectiveness when the shield is deployed.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Ballistic materials are concentrated specifically in the shield portion of the desk top rather than throughout the entire desk structure. This provides protection effectiveness where needed while minimizing overall weight increase.

Inventive Principle:
Principle #3Local quality

3Ease of operation

If quick-release mechanisms are added to the desk top, then ease of operation is improved, but device complexity increases

Engineering Contradiction:
Improveshield detachment easeVSAvoidlatch mechanism complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The release mechanism is simplified by extracting unnecessary components and focusing on a single primary release point. This allows quick detachment with one action while minimizing the complexity of the mechanism itself.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The latch system is designed to automatically engage and disengage without requiring complex controls or multiple steps. The mechanism serves itself by using the natural motion of removing the desk top to trigger the release, reducing operational complexity.

Inventive Principle:
Principle #25Self-service

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

Provides students with a portable and effective means to deflect or slow ballistic projectiles, enhancing personal protection in emergency situations without compromising desk functionality.

Implementation Method 1

The planar structure is a laminated ballistic structure with different layers performing different but complimentary functions to stop, deflect, or slow any ballistic projectiles

Methodology Applied
Scientific EffectBallistic resistance: Impact Force

Data Source

PatentUS10731949B2Detachable ballistic shield
Publication Date: 2020.08.04 FEIRRELL CHARLES R
  • US10731949B2 patent drawing
  • US10731949B2 patent drawing
  • US10731949B2 patent drawing

AI summary

A removable ballistic desk top is mated to a desk frame and can be removed in the event of an active shooter situation. The desk top has a top layer, a fabric layer, and a bottom layer. The fabric layer is a woven mesh and is bonded between the top and bottom layer. The desk top has a beveled edge that provides additional deflection of any projectiles when the beveled edge is placed near the floor. The desk top further includes handles and releasable latches for easy removal and installation to the desk frame.