Firearm Receiver Cover Locking Assemblies
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Solution Overview
Problem
Portable firearms require complex disassembly and tool usage for bolt mechanism removal and cleaning, compromising structural integrity during firing.
Innovation Solution
A receiver design with a removable cover and dual locking assemblies allows for easy access and cleaning of the bolt mechanism without disassembling the entire firearm, maintaining structural integrity by distributing the bolt mechanism's force between the receiver housing and cover.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the entire receiver is removed from the stock to access the bolt mechanism, then the bolt mechanism can be removed for cleaning, but the firearm requires complete disassembly and tool usage, increasing device complexity and time consumption
Solution Approach 1:
The receiver is segmented into a receiver housing and a separate receiver cover. The receiver cover can be independently removed to access the bolt mechanism without removing the entire receiver from the stock. This segmentation allows partial disassembly (removing only the cover) instead of complete disassembly (removing the entire receiver), thereby simplifying the access process and reducing device complexity during maintenance operations.
2Ease of operation
If a removable cover is used to access the bolt mechanism, then disassembly is simplified, but the cover may not securely maintain structural integrity during firing
Solution Approach 1:
The receiver cover is equipped with locking assemblies that are engaged before firing to securely attach the cover to the receiver housing. This preliminary action of locking ensures that the cover remains firmly attached during the high-stress firing process, maintaining structural integrity. The locking assemblies are designed to be engaged in advance (before firing) and disengaged only when maintenance is needed, thus resolving the contradiction between ease of access and reliability during operation.
3Reliability
If the receiver cover is securely locked during firing, then structural integrity is maintained, but the cover cannot be easily removed for cleaning
Solution Approach 1:
The locking assemblies are designed to be dynamically controllable - they can be securely engaged during firing to maintain structural integrity, and easily disengaged when cleaning is needed. The locking mechanism includes movable components (such as locking levers or latches) that can be actuated by the user to transition between locked and unlocked states. This dynamic capability allows the system to adapt between the two opposing requirements: secure attachment during operation and easy removal during maintenance.
4Ease of repair
If tools are required to remove mechanical fasteners for cleaning, then the bolt mechanism can be removed, but the process becomes more complex and time-consuming
Solution Approach 1:
The receiver cover is designed as a separate, independently removable component that provides direct access to the bolt mechanism. By segmenting the receiver structure and making the cover removable without tools (or with minimal tools), the patent eliminates the need for complete receiver disassembly and tool-based fastener removal. Users can quickly remove the cover to access and clean the bolt mechanism, significantly reducing the time and complexity of maintenance operations compared to traditional designs requiring full receiver removal and tool usage.
Data Source
AI summary
A firearm receiver includes a receiver housing defining an annular region to receive a bolt of the firearm, and a receiver cover removeably connected to the receiver housing. A guide assembly facilitates movement of the receiver cover relative to the receiver housing between an operating position to cover the annular region, and a non-operating position to expose the annular region and thereby facilitate access to the annular region. Locking assemblies are to facilitate a secure connection between the receiver housing and the receiver cover at the front and the rear of the receiver. The locking assemblies ensure that the receiver cover is securely maintained on the receiver housing during the firing of the firearm, and also enhances the overall structural integrity of the receiver during the firing of the firearm due to the fact the force of the bolt during firing of the firearm is distributed between the receiver housing and the receiver cover.