Angled Flexible Plate Drill Protection Device
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Solution Overview
Problem
Existing security measures fail to effectively prevent unauthorized access through drilling into vehicle or building doors, leading to rapid and costly burglaries.
Innovation Solution
A drill protection device comprising an enclosure with angled, flexible plate members and high-strength fibers, which deflects and impedes drill bits, combined with an accelerometer for vibration detection and alarm activation, to prevent drilling and enhance security.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional drilling protection is used, then drilling resistance is provided, but the protection is easily breached and does not delay unauthorized access
Solution Approach 1:
The plate member is designed to be movable relative to the first side wall, allowing it to deflect when subjected to drilling forces. This dynamic response transforms the static protection into an active defense mechanism that adapts to the drilling attack, thereby increasing the time required to breach the protection while maintaining reliable drilling resistance.
Solution Approach 2:
The drill protection device combines a plate member (rigid component) with fibers (flexible component) within an enclosure. This composite structure integrates the strengths of different materials - the rigidity of the plate for structural support and the flexibility of fibers for energy absorption - creating a multi-layered defense that significantly delays drilling penetration while maintaining effective drilling resistance.
2Reliability
If complex drill protection systems are implemented, then drilling resistance is improved, but device complexity and cost increase
Solution Approach 1:
The drill protection device is divided into distinct functional segments: an enclosure (first and second side walls), a plate member, and fibers. This segmentation allows each component to perform its specific function independently while contributing to the overall drilling resistance. The modular structure simplifies manufacturing and assembly compared to monolithic complex systems, reducing device complexity while maintaining reliable protection.
3Reliability
If rigid protection structures are used, then drilling resistance is provided, but the structure cannot absorb drilling energy effectively
Solution Approach 1:
The plate member is designed to be movable relative to the first side wall, allowing it to deflect when subjected to drilling forces. This dynamic response transforms the static protection into an active defense mechanism that adapts to the drilling attack, thereby increasing the time required to breach the protection while maintaining reliable drilling resistance.
Solution Approach 2:
The drill protection device incorporates fibers within the enclosure that can deform and absorb drilling energy. This flexible element complements the rigid plate member, creating a hybrid structure that both resists drilling forces and absorbs impact energy, thereby improving strength while maintaining reliable drilling resistance.
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 solution significantly delays unauthorized access by impairing drill bit efficiency and alerting authorities, thereby reducing reparation costs and downtime.
Implementation Method 1
an accelerometer for vibration detection and alarm activation
Implementation Method 2
the at least one first plate member being flexibly connected to the first side wall... if the first plate member is subjected to a force, the first plate member deflects relative to the first side wall
Data Source
AI summary
Drill protection device (12) for an access member (10), the drill protection device (12) comprising an enclosure (26) defining an interior volume (50) and comprising a first side wall (32); at least one rigid first plate member (40) arranged within the interior volume (50), the at least one first plate member (40) being flexibly connected to the first side wall (32) and angled with respect to the first side wall (32); and fibers (52) arranged within the interior volume (50). A drill protection assembly (68) and an access member (10) are also provided.