Modular Gun Stock Rattle Reduction via Elastic Latching
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Solution Overview
Problem
Current modular gun stocks require complex molds and multiple parts for manufacturing, leading to rattling and noise issues during use, which hinder stealthy movement and are difficult to quickly change between shooting positions.
Innovation Solution
The design features a modular gun stock system with a modified tongue and groove configuration, a release latch, flexible tabs, and a compression spring to secure the buffer tube, allowing for easy assembly and disassembly without rattling, using fewer components and simplified molds.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If traditional injection molding techniques are used with large core pins and multiple parts, then manufacturing precision can be achieved, but device complexity increases and manufacturing becomes more difficult
Solution Approach 1:
The patent combines multiple separate parts (housing, stock, cheek, comb) into a single integrated injection-molded component. This eliminates the need for multiple core pins, separate molding operations, and complex assembly procedures, thereby reducing device complexity while maintaining manufacturing precision through the inherent accuracy of injection molding.
Solution Approach 2:
The single molded component serves multiple functions simultaneously: it provides the housing structure, the stock support, the cheek for pistol grip configuration, and the comb for rifle configuration. This multi-functionality reduces the number of parts and manufacturing steps while achieving the same structural requirements.
2Ease of operation
If modular stocks are designed for easy removal and replacement, then ease of operation improves, but reliability decreases due to rattling and unwanted noise
Solution Approach 1:
The patent employs a dynamic retention system using elastic members (springs) that allow the stock to be easily inserted and removed while automatically maintaining secure engagement during use. The elastic biasing force ensures the stock remains firmly attached to prevent rattling and noise, yet can be quickly released when needed for reconfiguration.
3Reliability
If multiple fasteners and complex locking mechanisms are used to secure the stock, then reliability improves by preventing rattling, but ease of operation decreases and tool requirements increase
Solution Approach 1:
The retention system is designed to be self-actuating through elastic members that automatically engage and disengage the stock from the buffer tube. The elastic biasing force provides automatic securing without requiring separate fasteners or locking mechanisms, and the same elastic force enables easy release by simply pulling the stock away, eliminating tool requirements.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This solution provides a secure, quiet, and easily adjustable gun stock system that reduces noise and simplifies manufacturing, enabling quick changes between shooting positions without the need for separate tools.
Implementation Method 1
a compression spring to hold a buffer tube firmly against a buffer tube housing
Data Source
AI summary
The invention provides improved modular gun stocks and their methods of manufacture. Advantageously, gun stocks of the invention require fewer parts than conventional gun stocks. The lower stock supports of the improved modular gun stocks can be removed and replaced in multiple ways so that a variety of gun stocks can be created as desired. The invention also eliminates the undesirable rattling noise that modular gun stocks often have after assembly.