Sliding Lock Collar for Quick-Takedown Rifle Barrel Coupling
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Solution Overview
Problem
Existing firearms, such as AR-15, AR Pistols, and M16 rifles, require specialized tools and a workbench for disassembly and reassembly of the rifle barrel from the upper receiver, and existing tool-less systems are not robust, complicated, or do not allow for use of standard MILSPEC handguards and accessories.
Innovation Solution
A quick-take down coupling system with an upper receiver coupling and a sliding lock collar that allows for tool-less disassembly and reassembly of the rifle barrel, using a translational motion to unlock and lock the barrel to the upper receiver, ensuring compatibility with standard MILSPEC handguards and accessories.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If traditional firearm assembly methods are used, then the connection is strong and reliable, but the disassembly and reassembly require specialized tools and a workbench
Solution Approach 1:
The coupling system transitions from a static permanent connection to a dynamic reversible connection. The barrel coupling and upper receiver coupling are designed to be easily engaged and disengaged through a simple locking mechanism that can be operated without tools, allowing the firearm to adapt between assembled and disassembled states as needed.
Solution Approach 2:
The coupling system is divided into separate modular components: a barrel coupling attached to the barrel, an upper receiver coupling attached to the upper receiver, and a locking mechanism. This segmentation allows each component to be independently manufactured and assembled, simplifying the overall assembly process while maintaining connection strength.
2Ease of operation
If tool-less disassembly systems are used, then the ease of operation improves, but the systems are not robust or are complicated
Solution Approach 1:
The locking mechanism utilizes a ball bearing that fits into a curved recess to create a positive lock. This spherical geometry provides a self-centering, self-latching mechanism that is both simple to operate (tool-less) and extremely robust (positive mechanical lock). The curved surfaces ensure reliable engagement while allowing easy release when the locking lever is actuated.
3Productivity
If quick-release mechanisms are implemented, then the speed of disassembly improves, but the compatibility with standard accessories may be compromised
Solution Approach 1:
The coupling system is designed to perform multiple functions: it provides a quick-release mechanism for rapid disassembly while simultaneously maintaining compatibility with standard MILSPEC handguards and accessories. The barrel coupling includes threaded portions that accept standard accessories, and the overall design preserves the external dimensions and mounting interfaces of traditional firearms, ensuring universal adaptability.
Data Source
AI summary
Quick take-down firearms and methods of using quick-take down firearms. The quick-take down includes an upper receiver coupling and a barrel coupling. The quick take-down can be unlocked by sliding a sliding lock collar in a translational motion to an unlocked position to release locking elements from a locked configuration. In the unlocked position, a barrel and handguard may be installed onto and removed from the upper receiver of the firearm. Releasing the sliding lock collar returns it to a locked position, securing the barrel and handguard to the upper receiver.