Lock Arrangement With Sequential Dual-Pin Tamper Protection
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Solution Overview
Problem
Existing lock arrangements lack sophisticated safety features to prevent unauthorized tampering, making them vulnerable to manipulation.
Innovation Solution
A lock arrangement with a core that rotates within a core body, featuring a locking pin and a security pin that require sequential manipulation to enable core rotation, enhanced by magnetic mechanisms and geometric configurations to secure the locking pin's movement, ensuring dual security before unlocking.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a single locking pin is used to prevent core rotation, then the lock can be opened relatively easily, but the security against tampering is insufficient
Solution Approach 1:
The locking mechanism is divided into two independent pins: a locking pin that prevents core rotation and a security pin that prevents locking pin movement. This segmentation allows each pin to perform a specific function, making the overall system more secure while maintaining operational clarity.
Solution Approach 2:
The security pin is positioned in advance to prevent the locking pin from moving to the unlocked position. This preliminary protective action ensures that even if the locking pin is compromised, the security pin provides an additional barrier before the core can be opened.
2Reliability
If a dual-pin mechanism is implemented to enhance security, then tampering resistance improves, but the device complexity increases
Solution Approach 1:
Both the locking pin and security pin are integrated within the same core assembly, sharing common support structures and interaction spaces. This merging approach minimizes the increase in device complexity by having the pins work together in a coordinated manner rather than as completely separate mechanisms.
Solution Approach 2:
The locking pin and security pin are arranged in different spatial dimensions and orientations within the core assembly. The locking pin extends radially to prevent core rotation, while the security pin is positioned to control locking pin movement along a different path, utilizing three-dimensional space to reduce interference and simplify the overall structure.
3Reliability
If the locking pin and security pin are positioned to maximize security, then tampering becomes more difficult, but the manufacturing precision requirements increase
Solution Approach 1:
The locking pin and security pin are designed with different geometric characteristics optimized for their specific functions. The locking pin has dimensions and shapes tailored to engage with the core's rotational prevention requirements, while the security pin has features optimized for controlling pin movement. This local optimization allows each pin to be manufactured with standard tolerances while achieving the desired security.
Solution Approach 2:
The core assembly serves as an intermediary structure that provides precise positioning and alignment features for both pins. Common support surfaces, mounting locations, and interaction interfaces are designed into the core assembly to ensure accurate relative positioning of the locking and security pins, reducing the cumulative precision requirements.
Data Source
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AI summary
According to the invention, there is provided a lock arrangement comprising a core arranged, at least partly, inside a core body wherein the core is configured to rotate in relation to the core body about a longitudinal axis of the core, a locking pin configured to move between a first and a second position, wherein in the first position the locking pin is configured to prevent rotation of the core in relation to the core body, and in the second position the locking pin is configured to enable rotation of the core in relation to the core body, and a security pin configured to move between a first and a second position, wherein in the first position the security pin is configured to prevent moving of the locking pin to the second position, and in the second position the security pin is configured to enable moving of the locking pin to the second position.