Lever-Action Firearm With Segmented Magazine For Damage Tolerance
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Solution Overview
Problem
Conventional lever-action firearms suffer from structural design shortcomings, including fixed ammunition configuration, vulnerability to damage, slow and cumbersome unloading, exposure to dirt and debris, and incompatibility with pointed ammunition, which affect durability, operability, and safety.
Innovation Solution
A lever-action firearm design featuring a receiver system with a bolt carrier group, magazine arrangement, and trigger assembly that allows for semi-automatic or automatic operation, incorporating an AR-15 platform compatible upper and lower receiver bodies, a fully-enclosed trigger finger window, and a pivotable action-control lever for efficient ammunition handling and compatibility with pointed ammunition.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Weight of moving object
If conventional lever-action firearms use a thin-walled tubular magazine design, then the firearm can be compact and lightweight, but the magazine is easily damaged from contact with objects and renders the firearm inoperable
Solution Approach 1:
The magazine is divided into a magazine body and a separate magazine tube that can be independently replaced. The magazine tube is the sacrificial component that protects the more critical magazine body, allowing the firearm to remain operational even when the tube is damaged.
Solution Approach 2:
The magazine tube acts as an intermediary protective element between external objects and the magazine body. It absorbs damage that would otherwise reach and damage the magazine body, serving as a first line of defense.
2Volume of stationary object
If conventional lever-action firearms use end-to-end ammunition orientation in the magazine, then the magazine can be compact, but the projectile of one round can ignite the center-fire primer of the next round
Solution Approach 1:
Instead of orienting ammunition end-to-end with projectiles pointing forward, the ammunition is oriented with projectiles pointing rearward toward the shooter. This inversion prevents the projectile from contacting the primer of the next round while maintaining compact magazine volume.
Solution Approach 2:
The potential harm of pointed projectiles is converted into a benefit by orienting them rearward. The sharp projectile point, which would otherwise be dangerous in end-to-end orientation, now serves to prevent primer ignition while maintaining aerodynamic efficiency.
3Device complexity
If conventional lever-action firearms have a fixed ammunition configuration, then the firearm structure can be simplified, but the firearm is dedicated to a given ammunition regardless of availability or task suitability
Solution Approach 1:
The firearm transitions from a static, fixed-configuration design to a dynamic, adjustable configuration. The magazine and ammunition type can be changed based on mission requirements and ammunition availability, making the firearm adaptable without requiring complete redesign.
Solution Approach 2:
The firearm is designed to perform multiple ammunition types and configurations through interchangeable magazine and caliber conversion capabilities, making it a universal platform that can adapt to various tactical situations rather than being dedicated to a single ammunition type.
4Device complexity
If conventional lever-action firearms require manual chambering and ejecting of each round to unload, then the mechanism can be simple, but the process is slow and cumbersome
Solution Approach 1:
The firearm allows preliminary loading of multiple ammunition types and configurations into the magazine before engagement. This preliminary action eliminates the need for repeated manual chambering and ejection during unloading, as the magazine can be quickly removed and replaced with an empty one.
Solution Approach 2:
The unloading process is simplified by extracting the magazine as a complete unit rather than individually manipulating each cartridge. The magazine can be quickly removed from the firearm and replaced, effectively extracting the entire ammunition supply in one action rather than requiring individual cartridge handling.
Data Source
AI summary
A receiver system comprises upper and lower receiver bodies, a lower receiver body, a bolt carrier, and an action-control lever. The upper receiver body is a semi-automatic firearm upper receiver body. The lower receiver body includes a stock mounting flange having a stock receptacle that is matingly engageable with a receiver engaging portion of a stock. The bolt carrier is slidably disposed within a bolt carrier receiving bore of the upper receiver body. The action-control lever has a hand loop and a first attachment arm having a proximate end portion thereof attached to the hand loop. The first attachment arm is pivotably attached at a distal end thereof to the lower receiver body for being pivoted between a battery-ready position and a cartridge-ejecting position relative to the lower receiver body. The action-control lever is attached to the bolt carrier through an articulating coupling assembly.