Pump-Action Firearm Bolt Carrier Locking and Folding Stock
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Solution Overview
Problem
Existing firearms, such as the AR-15/M16 rifles, rely on gas-operated reloading systems, which may not be suitable for all operational needs, and there is a demand for a pump-action mechanism that allows for manual operation and flexibility in design, such as a folding butt stock.
Innovation Solution
A pump-action rifle design that incorporates a manually operated reload mechanism with a bolt carrier locking system and a folding butt stock, allowing for manual operation and flexibility in configuration, similar to the AR-15/M16 but with a pump-action mechanism instead of a gas-operated system. This includes a fore-end body coupled to an operation rod and a hand-held actuation arrangement with multiple actuation sections, and a bolt carrier locking mechanism that inhibits rearward travel when an unfired cartridge is in the chamber.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If a gas-operated reloading system is used (like AR-15/M16), then automatic reloading is achieved, but the system becomes less suitable for manual operation and loses flexibility in design configurations
Solution Approach 1:
The firearm system allows dynamic switching between gas-operated automatic reloading mode and manual pump-action mode. The gas operating system can be engaged or disengaged, enabling the same firearm to adapt between automated and manual operation modes based on operational needs, thus resolving the contradiction between automation extent and adaptability.
2Device complexity
If a fixed butt stock design is used, then structural simplicity is maintained, but the firearm loses compactness and portability when not in use
Solution Approach 1:
The butt stock is designed as a dynamic component that can rotate between a deployed position (extending rearward) and a folded position (alongside the receiver). This rotational mechanism allows the firearm to transition between extended and compact configurations, resolving the contradiction between structural simplicity and reduced length for portability.
Solution Approach 2:
The butt stock folds from a linear extension along the rearward axis to a position alongside the receiver, utilizing a different spatial dimension for storage. This dimensional transition reduces the overall length of the firearm when portability is needed, while maintaining structural simplicity through a straightforward hinge mechanism.
3Device complexity
If a non-detachable tubular magazine is used, then the firearm structure is simplified, but the ability to quickly change magazines is lost
Solution Approach 1:
The magazine system is segmented into detachable magazine units that can be independently removed and replaced. This segmentation allows the magazine to be separated from the main firearm body, enabling quick magazine changes without disassembling the entire firearm, thus resolving the contradiction between structural simplicity and magazine change speed.
4Adaptability or versatility
If a pump-action mechanism is used instead of gas-operated system, then manual operation flexibility is improved, but the ease of operation requires more user effort
Solution Approach 1:
The firearm system dynamically adapts between gas-operated mode (where gas pressure automatically cycles the action) and manual pump-action mode (where user effort cycles the action). This dynamic capability allows the system to reduce user effort when gas operation is available while maintaining manual operation flexibility when needed, resolving the contradiction between adaptability and ease of operation.
Data Source
AI summary
A butt stock for a firearm including the butt stock arrangeable in a first configuration to fold toward a first side of a receiver of the firearm into a first folded position along the first side of the receiver, and unfoldable away from the first side of the receiver of the firearm into an unfolded position rearward of the receiver; and the butt stock arrangeable in a second configuration to fold toward a second side of the receiver of the firearm into a second folded position along the second side of the receiver, and unfoldable away from the second side of the receiver of the firearm into the unfolded position rearward of the receiver.