Secure Enclosure with Rotatable Drum for Explosive Threat Management
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Solution Overview
Problem
Conventional secure enclosures for ATMs, such as safes, are costly when designed to resist both conventional attacks and explosive threats, and even then, may not withstand increased explosive force without being destroyed.
Innovation Solution
A secure enclosure design featuring a secure chamber outside the main body with a rotatable cylindrical transport system that blocks access to the chamber, a composite construction for enhanced resistance, and a purge slot for explosive gases, combined with a media transport mechanism that aligns slots to control access and prevent explosive insertion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the ATM safe is strengthened to withstand explosive attacks, then the resistance to explosive attacks is improved, but the cost increases several times compared to non-explosion-resistant safes
Solution Approach 1:
The invention divides the safe into two separate components: a removable secure chamber and a permanent body. The secure chamber is the element designed to withstand explosive attacks, while the body contains standard apertures. This segmentation allows the expensive explosion-resistant features to be concentrated in a smaller, replaceable component rather than the entire safe structure.
Solution Approach 2:
The secure chamber is extracted as a separate, removable unit from the main safe body. This allows the explosion-resistant chamber to be independently manufactured and replaced if damaged, while the main body remains intact. The chamber can be removed and replaced without damaging the body, effectively separating the high-cost explosion-resistant functionality from the rest of the safe.
2Ease of operation
If the secure chamber is made accessible through apertures, then the ease of operation is improved, but the vulnerability to explosive insertion is worsened
Solution Approach 1:
The secure drum is designed to rotate between different positions, dynamically changing which aperture is active. The drum can present the chamber media slot to authorized users while blocking other apertures. This dynamic positioning allows the same physical structure to provide both easy access during normal operation and protection against unauthorized explosive insertion.
Solution Approach 2:
The secure drum acts as an intermediary component between the apertures and the secure chamber. It mediates access by selectively aligning its slot with different apertures based on operational needs. The drum's slot is the only opening that provides access to the chamber, and it can be positioned to block all apertures except the intended access point, preventing direct insertion of explosives through unauthorized openings.
Data Source
AI summary
A secure enclosure comprises: a body defining an access opening closed by a door, and a body media slot. A secure chamber is mounted outside the body and surrounds the body media slot, the secure chamber defining a chamber media slot. The secure enclosure may further comprise a media transport operable to convey media between the body media slot and the chamber media slot. The secure chamber body may also define a purge slot located on an underside of the chamber body so that media items that are not removed by a customer may be dropped through the purge slot.