Under-fold firearm stock assembly with quick release lever
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Solution Overview
Problem
The RUGER 10/22 Takedown rifle lacks an adjustable stock, which is desirable for customization, storage, and use in close quarters, necessitating an aftermarket under-fold firearm stock assembly that can accommodate the rifle's firing mechanism without modification.
Innovation Solution
An under-fold firearm stock assembly featuring a main body with a longitudinal channel to receive the rifle firing mechanism, a pivotally mounted stock that transitions between open and closed positions, and a forearm stock with a quick release lever, allowing the assembly to securely hold the rifle barrel and firing mechanism without requiring modifications to the rifle.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If an adjustable stock is added to the RUGER 10/22 Takedown rifle, then customization and usability are improved, but device complexity increases
Solution Approach 1:
The stock assembly is divided into separate components: a main body, a pivotally mounted stock portion, and a forearm stock. This segmentation allows each component to be independently manufactured and assembled, reducing overall complexity while enabling adjustability. The pivotally mounted portion can be rotated between positions, providing customization without requiring a completely complex adjustable mechanism.
Solution Approach 2:
The stock incorporates a pivotally mounted portion that can rotate between multiple positions, transitioning from a static to a dynamic structure. This dynamic element provides adjustability and customization options while maintaining relative simplicity through a single pivot point rather than multiple adjustment mechanisms.
2Ease of operation
If an under-fold stock assembly is added to the rifle, then storage and transport convenience are improved, but device complexity increases
Solution Approach 1:
The pivotally mounted stock portion can be rotated to fold underneath the main body of the rifle, nesting the stock within the overall firearm structure. This nesting capability provides compact storage and transport convenience while maintaining a relatively simple single-pivot mechanism rather than complex folding systems.
3Adaptability or versatility
If an aftermarket stock assembly is used to accommodate the rifle's firing mechanism, then adaptability is improved, but manufacturing precision requirements increase
Solution Approach 1:
The main body of the stock assembly is designed with a longitudinal channel that can receive and accommodate the rifle's firing mechanism. This universal design allows the stock to adapt to the specific rifle model while maintaining standard manufacturing tolerances, as the channel provides a generic receiving structure rather than requiring custom-fit precision machining.
Data Source
AI summary
An under-fold firearm stock assembly includes a main body having a longitudinal channel and a firing mechanism opening, a forearm stock having an elongated quick release lever opening, and a shoulder stock that is pivotally secured along the back of the main body via a pivot assembly.