Firearm Lock Housing with Bidirectional Shaft and Cam Mechanism
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Solution Overview
Problem
Existing gun safety devices are inadequate in preventing unauthorized use, particularly when coupled with muzzle devices, as they lack robust anti-tampering mechanisms and are vulnerable to brute force, cutting, drilling, and reverse installation attempts.
Innovation Solution
A gun safety device featuring a lock housing with a base component and receptacle, a key structure, and a cam mechanism that includes bidirectional rotatable shafts and arms with tabs to secure the muzzle device, along with a self-protective cage-like structure and a semi-flexible wand to prevent ammunition loading, designed to resist tampering and self-destruct before compromise.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a simple lock mechanism is used, then manufacturing costs are reduced, but anti-tampering properties deteriorate
Solution Approach 1:
The lock mechanism is divided into multiple independent components including a lock housing, cam mechanism, bidirectional rotatable shaft, and cage-like structure. Each component performs a specific function and can be manufactured separately using standard machining processes, keeping production costs low while the combination provides robust anti-tampering protection through their integrated interaction.
Solution Approach 2:
The device employs a composite structural approach combining a rigid lock housing with a cam mechanism that creates dynamic locking engagement. The cage-like structure integrates multiple functional elements (shaft, cam, arms) into a unified assembly that provides enhanced security through geometric interlocking rather than relying on material strength alone, maintaining cost-effectiveness while improving anti-tampering properties.
2Reliability
If a robust lock mechanism with multiple components is used, then anti-tampering properties are improved, but device complexity increases
Solution Approach 1:
Multiple security functions are merged into a single integrated lock mechanism. The cam mechanism simultaneously performs locking, securing the muzzle device, and preventing unauthorized manipulation. The bidirectional rotatable shaft combines rotation and translation movements to engage and disengage the locking arms in one continuous motion, reducing the number of separate components needed while maintaining robust anti-tampering properties.
Solution Approach 2:
The lock mechanism is designed with multi-functionality to handle various tampering attempts. The cam mechanism can lock in multiple positions, the cage-like structure provides both physical containment and structural reinforcement, and the bidirectional shaft allows for both secure locking and easy authorized release. This universal design approach consolidates multiple security functions into a single device, reducing overall complexity while enhancing anti-tampering capabilities.
3Reliability
If the device is designed to resist all tampering methods, then safety certainty is improved, but manufacturing costs increase
Solution Approach 1:
The device incorporates preliminary anti-action features directly into its structure. The cage-like configuration with its interlocking arms and cam mechanism is designed to automatically defeat tampering attempts before they can compromise the lock. The geometry of the components is arranged to prevent drilling, cutting, and brute force attacks by design rather than requiring expensive specialized materials or complex assembly processes, achieving high safety certainty at standard manufacturing costs.
Data Source
AI summary
A device for controlling access to a firearm having a barrel with various physical features proximal thereto, including a muzzle device. The device includes a lock housing with a cavity to receive the barrel. The device also includes a lock mechanism shaft coupled to a lock mechanism that is configured for rotational movement upon actuation of the lock mechanism. The lock mechanism shaft is coupled to a cam that moves axially upon rotation of the lock mechanism shaft. A bidirectional rotatable shaft is coupled to the cam and is insertable into the barrel of the firearm. Embodiments described include variants on the use of a plurality of tabs such as arm, tab, and/or housing configurations to receive and grasp the muzzle device, firearm fixed front sights, bead front sights and/or accessories such as, for example, Picatinny rails, vertical or near vertical serrations, cuts and/or grooves located on the distal lateral and ventral regions of the frame and/or slide.