Firearm Receiver Assembly Pillar Alignment
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Solution Overview
Problem
Bolt action firearms face accuracy and reliability issues due to stock distortion and inconsistent component spacing caused by ambient environmental conditions and wear, making hand assembly challenging and requiring expensive gunsmith adjustments.
Innovation Solution
A firearm receiver assembly with a bottom metal attached to a receiver via integrated pillars and a chassis, securely fastening the components together with apertures and fasteners to minimize movement and maintain alignment, using metal components to withstand environmental changes and maintain accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If components are assembled by hand with multiple assemblers, then assembly flexibility is maintained, but component spacing consistency and alignment deteriorate
Solution Approach 1:
The bottom metal is divided into a first portion and a second portion with a gap between them, allowing independent adjustment of each section while maintaining overall alignment. This segmentation enables hand assemblers to work with smaller, more manageable components while achieving consistent spacing through the modular design.
Solution Approach 2:
The chassis serves as an intermediary component that mediates between the receiver and the bottom metal portions. It provides a standardized interface with consistent spacing features, allowing hand assemblers to achieve precise alignment without requiring high skill levels, while still maintaining assembly flexibility.
2Ease of manufacture
If traditional bottom metal design is used, then manufacturing simplicity is maintained, but component movement and misalignment under environmental stress increase
Solution Approach 1:
The bottom metal portions are designed to be adjustable rather than fixed, allowing dynamic adaptation to environmental changes such as temperature-induced expansion or contraction. The gap between portions enables slight movements while maintaining alignment, preventing stress concentration and ensuring reliable component spacing under varying conditions.
Solution Approach 2:
The design allows for parameter changes in the spacing and positioning of bottom metal portions relative to the receiver. By incorporating adjustment mechanisms and compliant features, the system can adapt its geometric parameters in response to environmental stresses, maintaining reliable alignment without requiring complex manufacturing processes.
3Device complexity
If fixed bottom metal design is used, then manufacturing complexity is reduced, but adaptability to environmental conditions and wear deteriorates
Solution Approach 1:
Dividing the bottom metal into separate portions creates a modular design that is surprisingly simple to manufacture while providing excellent adaptability. Each portion can be independently positioned and adjusted to accommodate environmental changes and wear, achieving high versatility without significantly increasing device complexity.
Solution Approach 2:
The bottom metal portions nest within the chassis structure, with the gap between portions allowing for adaptive movement. This nested arrangement provides a compact design that adapts to environmental conditions while maintaining simple manufacturing processes, as the portions fit into predetermined spaces within the chassis.
Data Source
AI summary
A firearm receiver assembly is disclosed herein. The firearm receiver assembly includes a receiver having at least two pillar apertures. The firearm receiver assembly also includes a chassis having a top portion, a bottom portion, and a side portion. The receiver is configured to be set within the top portion. The firearm receiver assembly also includes a bottom metal having a top side, a bottom side, a proximate end, and a distal end. More so, the firearm receiver assembly includes at least two integrated pillars extending from the top side of the bottom metal. The at least two integrated pillars are configured to align with the pillar apertures of the receiver.