Roller-Delayed Bolt and Bearing Layout for Multi-Caliber Reliability
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Solution Overview
Problem
Modern firearms face challenges in adapting blowback or gas pressure operating systems to various calibers due to the mass of the cartridge, necessitating adjustments for suitable function and safety, and there is a need for a modular operating system that simplifies and enhances reliability.
Innovation Solution
A roller delayed operating system incorporating a forward bolt, carrier, short cam pin, and bearings, allowing for a retracted and deployed configuration through linear motion, which facilitates compatibility with different calibers and ensures reliable operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If blowback or gas pressure operating systems are used to accommodate various calibers, then caliber versatility is improved, but adjustments are necessary for each caliber to ensure suitable function and safety
Solution Approach 1:
The operating system uses a roller delayed mechanism where the roller can move between retracted and deployed configurations. This dynamic adjustment allows the system to adapt to different cartridge masses and calibers automatically, eliminating the need for manual adjustments for each caliber while maintaining safe and reliable operation across various firearm types including handguns, rifles, and carbines
2Reliability
If a roller delayed operating system with multiple bearings is implemented, then reliability is improved, but device complexity increases
Solution Approach 1:
The operating system combines the roller, cam pin, and multiple bearings into a single integrated delayed operating mechanism. This merging of components achieves reliable delayed operation while simplifying the overall structure compared to traditional blowback or gas pressure systems, as the roller-bearer-cam pin assembly functions as a unified delay mechanism that can be incorporated into existing firearm operating systems
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The system provides a modular and reliable operating system that adapts to various calibers, enhancing safety and simplicity by eliminating the need for additional venting holes, reducing corrosion, and ensuring consistent firearm function.
Implementation Method 1
A roller delayed operating system incorporating a forward bolt, carrier, short cam pin, and bearings
Data Source
AI summary
A firearm operating system includes a forward bolt with an internal cavity, a carrier disposed on a rear side of the forward bolt where the carrier includes a cavity, a short cam pin, a plurality of bearings, a retracted configuration, and a deployed configuration. At least a portion of a forward section of the short cam pin is disposed within the internal cavity of the forward bolt. At least a portion of a rear section of the short cam pin is disposed within the cavity of the carrier. Movement from the retracted configuration to the deployed configuration includes movement in a forward/aft direction of the short cam pin relative to the forward bolt and movement of the plurality of bearings.