Bullpup Rifle Stock Kit Trigger Link Mechanism
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Solution Overview
Problem
There is a need for a rifle stock kit that can convert a traditionally configured rifle into a bullpup configuration with minimal gunsmithing knowledge or mechanical expertise, requiring a mechanism to reposition the trigger and magazine, while also providing a rotatable handguard and trigger safety.
Innovation Solution
A three-piece chassis system with a mechanical device to connect the trigger to the sear, a rotatable handguard, and a magazine release mechanism, specifically designed for SKS type rifles, allowing for conversion to a bullpup configuration with a pistol grip, trigger safety, and vertical foregrip functionality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of moving object
If a traditional rifle is converted to bullpup configuration by moving the action and magazine behind the trigger, then the barrel length increases and ergonomics improve, but the complexity of the trigger mechanism increases due to the need for new mechanisms to place the trigger and sear into operational communication
Solution Approach 1:
The patent introduces a trigger link as an intermediary component that connects the trigger to the sear mechanism. This trigger link serves as a mediator to transmit force and motion between the trigger and sear, enabling them to operate correctly in the bullpup configuration where the trigger is positioned forward of the action. The trigger link simplifies the overall mechanism by providing a direct mechanical connection rather than requiring complex linkages or additional components.
2Ease of operation
If a bullpup conversion kit is designed to require minimal gunsmithing knowledge or mechanical expertise, then the ease of installation improves, but the precision and reliability of the mechanical connections may be compromised
Solution Approach 1:
The conversion kit is divided into separate, modular components including a stock assembly, trigger assembly, and mounting brackets. Each component can be installed independently, allowing users with minimal expertise to assemble the kit step-by-step without requiring complex mechanical skills. The segmented design also enables straightforward troubleshooting and maintenance if issues arise.
Solution Approach 2:
The kit is designed with self-aligning features and simplified fastening mechanisms that allow the components to position themselves correctly during assembly. The trigger link and mounting brackets incorporate features that automatically align with corresponding parts on the rifle, reducing the need for precise manual positioning and eliminating the requirement for specialized gunsmithing tools or expertise.
Data Source
AI summary
The present invention provides for a stock kit that converts a conventional rifle, such as an SKS, into bullpup configuration. The preferred embodiment of the provided stock kit does not require any permanent modification be made to the host firearm.