Adjustable Firearm Butt Assembly With Redundant Pad Locking
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Solution Overview
Problem
Firearm butt assemblies with a single adjustment mechanism are undesirable for maintaining desired orientation under various use conditions, as they lack redundancy in preventing unwanted adjustments.
Innovation Solution
An adjustable firearm butt assembly with a base plate, pad plate, and attachment fastener system that allows for multiple points of attachment and movement, providing enhanced stability and customization through a base slot, guide track, and guide pin configurations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single adjustment screw is used to maintain the firearm butt assembly in the desired orientation, then the device complexity is reduced, but the reliability of maintaining the desired orientation under various use conditions deteriorates
Solution Approach 1:
The adjustment mechanism is segmented into multiple independent components: a first adjustment mechanism with a first adjustment screw and first adjustment nut, and a second adjustment mechanism with a second adjustment screw and second adjustment nut. Each mechanism can independently adjust and secure the butt assembly at different positions, providing redundant reliability while maintaining manageable complexity through modular design.
Solution Approach 2:
Different regions of the butt assembly have different adjustment characteristics. The first adjustment mechanism operates at a first position with specific adjustment characteristics, while the second adjustment mechanism operates at a second position with different adjustment characteristics. This allows each region to be optimized for its specific function, with the first mechanism providing initial positioning and the second mechanism providing fine-tuning and secure locking.
2Reliability
If multiple adjustment mechanisms are used to prevent unwanted adjustment, then the reliability is improved, but the device complexity increases
Solution Approach 1:
The multiple adjustment mechanisms are segmented into distinct, independent units that can be operated separately. The first adjustment mechanism handles initial positioning and coarse adjustment, while the second adjustment mechanism handles fine-tuning and final securing. This segmentation allows the system to achieve high reliability through redundancy while keeping each individual mechanism simple and manageable.
Solution Approach 2:
The system transitions from a static single-point adjustment to a dynamic multi-point adjustment system. The first adjustment mechanism provides initial dynamic adjustment capability, and the second adjustment mechanism adds additional dynamic adjustment capability. Together, they provide continuous adjustment range with multiple locking points, enhancing reliability without requiring overly complex individual mechanisms.
Data Source
AI summary
An adjustable firearm butt assembly comprises a base plate selectively attached to a buttstock of a firearm. The base plate has a transversely extending base slot. An adjustment nut is aligned with, and is transversely movable relative to, the base slot. A pad plate is selectively attached to the base plate with the base plate being interposed longitudinally between the pad plate and the adjustment nut. The pad plate has a laterally extending plate slot. The plate slot is aligned with both the adjustment nut and the base slot. An attachment fastener selectively extends through the plate slot and into engagement with the adjustment nut to selectively attach the pad plate to the base plate. The attachment fastener is laterally movable with respect to the plate slot. The attachment fastener is selectively movable between unclamped and clamped conditions via engagement with the adjustment nut.