Firing Pin Retainer Integrated with Operating Rod Assembly
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Solution Overview
Problem
Existing firearm operating systems require complex mechanisms and tools for disassembly, particularly for removing recoiling parts, which complicates maintenance and assembly processes.
Innovation Solution
A firearm operating system that utilizes a firing pin retainer integrated with the operating rod assembly, allowing for the retention and easy removal of the firing pin without additional pins or levers, enabling quick disassembly of recoiling parts without tools.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If traditional firearm operating systems use separate pins or levers to retain the firing pin, then the firing pin is securely retained, but the disassembly process becomes complex and requires additional tools
Solution Approach 1:
The firing pin retainer is merged with the operating rod assembly, specifically extending from the lug of the operating rod. This integration eliminates the need for separate retention mechanisms, allowing the firing pin to be retained while simplifying disassembly to require only removal of the operating rod assembly.
Solution Approach 2:
The firing pin retainer serves multiple functions: it retains the firing pin in place during operation, provides a release mechanism when the operating rod assembly is removed, and integrates with the existing lug structure of the operating rod. This multi-functionality reduces the need for additional components.
2Ease of operation
If a firing pin retainer is integrated with the operating rod assembly, then tool-free disassembly is enabled, but the retention security must be maintained during firing
Solution Approach 1:
The firing pin retainer is merged with the operating rod assembly, specifically extending from the lug of the operating rod. This integration eliminates the need for separate retention mechanisms, allowing the firing pin to be retained while simplifying disassembly to require only removal of the operating rod assembly.
Solution Approach 2:
The firing pin retainer includes a curved surface that engages with the firing pin, providing secure retention through geometric interlocking. The curved geometry ensures positive engagement while allowing for the intended release mechanism.
Data Source
AI summary
A firearm operating system includes a firing pin having a first end and a second end. An operating rod assembly includes an operating rod, a lug positioned at a first end of the operating rod, and a firing pin retainer extending from the lug. A bolt carrier includes a bolt carrier pocket structured to receive the firing pin retainer, and a bolt carrier cam pin opening. A bolt is structured to be received in the bolt carrier. The bolt includes a bolt cam pin opening. A cam pin is structured to be positioned through the bolt carrier cam pin opening and into the bolt cam pin opening. The first end of the firing pin extends through a firing pin opening of the cam pin to retain the cam pin. The firing pin retainer of the operating rod assembly engages the second end of the firing pin so as to retain the firing pin.