Ballistic Viewport Bracket Assembly for Seam Penetration Resistance
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Solution Overview
Problem
Ballistic shields with nested ballistic glass panels in view ports create structural seams that are weak points for high-velocity projectile penetration, and mounting brackets introduce additional seams, compromising the shield's integrity.
Innovation Solution
A specially configured pair of 'C' and 'L' brackets, with the 'C' bracket's front arm overlapping the glass panel to prevent forward movement and the 'L' bracket's foot overlapping the rear to prevent rearward movement, combined with fastening means to secure the glass panel, effectively sealing and reinforcing the seam.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Weight of stationary object
If the ballistic glass panel is nestingly mounted within the view port to reduce weight and enhance compactness, then weight and structural compactness are improved, but structural seams are created between the glass panel and view port edge which become weak points for projectile penetration
Solution Approach 1:
A sealing bracket is introduced as an intermediary component between the ballistic glass panel and the view port peripheral edge. This bracket fills the structural seam gap, providing both mechanical retention of the glass panel and continuous ballistic protection, thereby eliminating the weak point created by the nesting configuration while maintaining weight reduction benefits.
Solution Approach 2:
The view port assembly is segmented into distinct functional components: the ballistic glass panel, the sealing bracket, and the view port housing. This segmentation allows each component to be optimized independently - the glass for ballistic protection, the bracket for sealing and retention, and the housing for structural support - while collectively solving the contradiction between weight reduction and penetration resistance.
2Stability of the object's composition
If mounting brackets with fasteners and fastener receiving eyes are used to prevent frontward and rearward movements of the glass panel, then mechanical retention is improved, but additional seams are introduced which further threaten penetrations by high velocity projectiles
Solution Approach 1:
The sealing function and the mechanical retention function are merged into a single integrated sealing bracket component. This bracket simultaneously provides continuous sealing against projectile penetration and secure retention of the glass panel through its structural design, eliminating the need for separate fasteners and fastener receiving eyes that would create additional seams.
Solution Approach 2:
The sealing bracket is designed as a multi-functional component that performs multiple functions: (1) sealing the structural seam to prevent projectile penetration, (2) retaining the glass panel in position, and (3) providing structural support. This multi-functionality eliminates the need for additional specialized components that would introduce more seams.
Data Source
AI summary
An armored shield incorporating a first ballistic panel having a view port; a second ballistic panel received within the view port, the second ballistic panel being transparent; a “C” bracket having a web having front and rear ends, the “C” bracket having a front arm having proximal and distal ends, and the “C” bracket having a rear arm having proximal and distal ends, wherein the distal end of the front arm forwardly overlies the second ballistic panel, and wherein the rear arm forwardly overlies the first ballistic panel; an “L” bracket having a column having front and rear ends, the “L” bracket having a foot having proximal and distal ends, wherein the distal end of the foot rearwardly overlies the second ballistic panel; and a plurality of screws interconnecting the front end of the “L” bracket's column and the distal end of the “C” bracket's rear arm.