Tamper-Evident Fastener With Break Points for Cabinet Access Detection
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Solution Overview
Problem
Securable medication dispensing cabinets lack evidence of unauthorized access, as existing fasteners can temporarily deform without permanent damage, making it difficult to detect unauthorized access, especially in low-traffic areas where detection may be delayed.
Innovation Solution
The container features a tamper-evident fastener that breaks at intentional points when forced open, coupled with sensors to detect the break and alert upon unauthorized access, providing physical evidence and immediate notification.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional fasteners are used to secure container lids, then the container can be locked and secured, but the fastener does not provide evidence of unauthorized access or tampering
Solution Approach 1:
The fastener incorporates a visual indicator mechanism that changes the apparent state or position of the fastener when tampering occurs. The indicator portion becomes misaligned or visible in a way that signals unauthorized access, providing immediate visual evidence of tampering without requiring complex electronic sensors.
2Strength
If the fastener is made stronger to prevent unauthorized opening, then security is improved, but the fastener may deform temporarily without breaking, leaving no evidence of attempted access
Solution Approach 1:
The fastener is designed with predetermined break points and structural weaknesses that are intentionally placed to ensure the fastener breaks in a visible manner when subjected to unauthorized force. The indicator mechanism is pre-configured to show tampering evidence before the fastener actually fails, allowing detection of attempted access.
3Ease of manufacture
If a simple fastener design is used, then ease of manufacture is improved, but the fastener cannot provide reliable tamper evidence
Solution Approach 1:
The fastener is divided into distinct functional segments: a body portion, an indicator portion, and predetermined break points. This segmentation allows each component to be manufactured separately using standard processes, then assembled together to create the tamper-evident functionality without requiring complex overall manufacturing.
4Device complexity
If no tamper detection mechanism is included, then device complexity is reduced, but unauthorized access cannot be detected
Solution Approach 1:
The fastener serves its own detection function through the integrated indicator mechanism that automatically shows tampering evidence when force is applied. The fastener itself provides the detection capability without requiring external sensors, monitoring systems, or additional complexity beyond the indicator portion built into the fastener structure.
Data Source
AI summary
A container is described. The container includes a receptacle, lid, and fastener. The receptacle includes a latch. The lid is coupled to the receptacle and moves between an open and a closed position. The fastener is coupled to the lid and fastens the lid to the receptacle. The fastener includes first, second, third, and fourth portions. The first portion is coupled to the lid and extends along a first axis that is perpendicular to a plane of the lid when the lid is in the closed position. The second portion is coupled to the first portion and extends along a second axis that is perpendicular to the first axis. The third portion is coupled to the second portion and extends along an axis that is parallel to the first axis. The fourth portion is coupled to the third portion and includes a contact member that couples to the latch.