Upper Receiver Magazine Stabilization Against Wobble and Jams
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Solution Overview
Problem
Semiautomatic firearms with removable ammunition magazines often experience movement and wobbling, leading to jams and misfires.
Innovation Solution
The design incorporates protrusions on the magazine and complementary inner surfaces in the upper receiver to stabilize the magazine, preventing movement and rotation during firearm operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a removable ammunition magazine is used in a semiautomatic firearm, then the ease of operation is improved (magazine can be quickly removed and replaced), but the stability of the magazine deteriorates (causing movement and wobble during operation)
Solution Approach 1:
The magazine stabilization feature is segmented into distinct protrusions (first and second protrusions) that can be independently designed and manufactured. These protrusions are integrated into the magazine body as separate functional elements, allowing the magazine to maintain removability while incorporating stabilization features that prevent movement and wobble during operation.
2Device complexity
If the magazine is designed to be removable for ease of operation, then the device complexity is reduced (simpler magazine system), but the reliability deteriorates (jams and misfires due to magazine movement)
Solution Approach 1:
Protrusions are introduced as intermediary elements between the magazine and the receiver. These protrusions act as mediators that transfer and stabilize the connection between the removable magazine and the firearm body, preventing harmful movements while maintaining the simplicity of the removable magazine system.
3Stability of the object's composition
If protrusions are added to the magazine to prevent movement, then the stability is improved, but the manufacturing precision requirements increase (need for precise engagement surfaces)
Solution Approach 1:
The protrusions are designed with specific local geometric qualities that concentrate the stabilization function at key engagement points rather than requiring precision across the entire magazine-receiver interface. The complementary inner surfaces in the receiver are similarly designed with localized features that mate with the protrusions, creating stable engagement with manageable manufacturing tolerances.
Data Source
AI summary
An upper receiver is disclosed. The upper receiver contains a first inner surface configured to abut a first magazine protrusion, and a second inner surface configured to abut a second magazine protrusion.