Ambidextrous Thumb Safety Assembly Monolithic Shaft
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Solution Overview
Problem
Firearms often lack ambidextrous thumb safety assemblies that are properly supported within the frame, leading to potential inadvertent discharge due to non-ambidextrous and inadequately secured safety mechanisms.
Innovation Solution
An ambidextrous thumb safety assembly featuring a monolithic shaft assembly that couples two lever assemblies on opposite sides of the firearm, with support portions engaging the frame to securely position and control the trigger mechanism, preventing accidental discharge by locking the hammer or sear assembly in either cocked or uncocked positions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a thumb safety assembly is installed in a firearm, then the firearm safety is improved, but the assembly may not be ambidextrous and may not be properly supported within the frame
Solution Approach 1:
The safety assembly is divided into separate components: a shaft assembly with support portions for different sides of the firearm, and lever assemblies that can be selectively positioned. This segmentation allows the same basic structure to serve both right-handed and left-handed users by configuring which lever is active on which side.
Solution Approach 2:
The shaft assembly is designed with multiple support portions that can engage with the frame on different sides, making it a universal component that can accommodate ambidextrous operation. The single shaft assembly serves multiple functions by supporting both right-side and left-side lever assemblies, eliminating the need for separate safety mechanisms for each handedness.
2Reliability
If a thumb safety assembly is installed in a firearm, then the firearm safety is improved, but the assembly may not be properly supported within the frame
Solution Approach 1:
The support function is extracted and separated from the lever assemblies and placed into the shaft assembly. The shaft assembly contains multiple support portions that are specifically designed to engage with the frame, providing stable support independent of which lever assembly is being used. This extraction ensures proper support regardless of ambidextrous configuration.
3Stability of the object's composition
If a monolithic shaft assembly is used to couple lever assemblies, then stability and secure operation are improved by minimizing wobble and deflection, but the device complexity increases
Solution Approach 1:
Multiple support portions for different sides of the firearm are merged into a single monolithic shaft assembly. This integration provides stable support for both right-side and left-side lever assemblies while minimizing wobble and deflection. The unified structure eliminates the need for multiple separate support components, actually simplifying the overall device while maintaining stability.
Data Source
AI summary
An ambidextrous thumb safety assembly, configured for use in a firearm, includes a first lever assembly for positioning on a first side of the firearm, a second lever assembly for positioning on a second side of the firearm, and a monolithic shaft assembly for coupling the first lever assembly and the second lever assembly. The monolithic shaft assembly includes a first support portion configured to rotatably engage a first portion of a frame of the firearm, a second support portion configured to rotatably engage a second portion of the frame of the firearm, and a control portion configured to selectively prohibit operation of a trigger mechanism of the firearm.