Finger Wedge Vehicle Barrier Rapid Deployment
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Solution Overview
Problem
Existing security barriers at motor vehicle entrances lack efficient mechanisms to rapidly deploy and retract while effectively withstanding ramming forces, and their installation often requires complex processes and materials that increase time and cost.
Innovation Solution
A finger wedge vehicle barrier system featuring a frame with laterally extending beam troughs and pivotally connected fingers, which can be quickly moved between a non-deployed and deployed position using a drive actuator, and is installed in a shallow concrete foundation, eliminating the need for reinforcement bars and hot work, allowing for rapid deployment and high impact resistance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If traditional security barriers are used, then they can stop vehicles, but they require complex installation processes with reinforcement bars and hot work
Solution Approach 1:
The barrier system is divided into modular components including a frame structure, foundationless mounting mechanism, and segmented barrier panels. This segmentation allows for simplified installation without requiring complex reinforcement structures or hot work processes, reducing both installation complexity and time
Solution Approach 2:
The invention extracts and eliminates the foundation component from traditional barrier systems. By removing the requirement for concrete foundations with reinforcement bars and hot work, the system achieves faster installation while maintaining structural integrity through alternative mounting mechanisms
2Productivity
If traditional barriers are deployed to stop vehicles, then they provide security, but they cannot be rapidly retracted to allow authorized passage
Solution Approach 1:
The barrier system employs dynamic components including pivotally connected fingers and actuated blocking members that can rapidly transition between deployed and retracted positions. This dynamic design enables quick barrier operation to control vehicle flow while maintaining security when needed
Solution Approach 2:
The invention replaces traditional heavy mechanical barrier systems with a lighter, more agile finger wedge mechanism actuated by modern actuators. This substitution enables rapid deployment and retraction cycles while maintaining effective vehicle stopping capability
3Strength
If barriers are designed to withstand ramming forces, then they provide security, but they require complex structures that increase installation complexity
Solution Approach 1:
The barrier system changes key parameters including the geometry of finger wedges, the positioning of blocking members, and the structural characteristics of the frame to achieve high impact resistance. These parameter optimizations allow the barrier to withstand ramming forces without requiring overly complex structural designs
Solution Approach 2:
The invention employs composite construction combining the frame structure with strategically positioned blocking members and finger elements. This composite approach distributes impact forces effectively, providing high strength and impact resistance while avoiding the need for monolithic complex structures
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 system can be actuated in under 2 seconds, withstands impacts from medium-duty trucks at 50 miles per hour, meets ASTM F2656 Condition/Penetration Rating M50/P1, and reduces installation time to less than a day without requiring reinforcement bars or hot work.
Implementation Method 1
each of the fingers having a linkage connected at a first end to the finger and at a second end to the frame
Implementation Method 2
a finger wedge barrier comprising fingers aligned with the finger troughs, each of the fingers having a top surface, a bottom surface, a rear end pivotally connected to the frame
Implementation Method 3
A finger wedge vehicle barrier system featuring a frame with laterally extending beam troughs and pivotally connected fingers
Implementation Method 4
withstands impacts from medium-duty trucks at 50 miles per hour
Data Source
AI summary
A finger wedge barrier system includes a frame having a top side and a bottom side, a laterally extending beam trough located along a front wall, and laterally spaced apart finger troughs extending axially from a rear wall to the beam trough, each of the finger troughs is open at the top side of the frame and formed between a cooperative pair of rails; a first cavity formed between a first pair of the laterally spaced apart finger troughs, the first cavity open at the top side and the bottom side; a second cavity formed between a second pair of the laterally spaced apart finger troughs, the second cavity open at the top side and the bottom side; and a finger wedge barrier having fingers aligned with the finger troughs, each of the fingers having a top surface, a bottom surface, a rear end pivotally connected to the frame, and a blocking member extending perpendicular to the fingers and connected at front ends of each of the fingers.