Modular Buttstock Assembly with Adjustable Locking Mechanism
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Solution Overview
Problem
Conventional firearms are often limited to specific tasks and calibers, requiring multiple weapons for different environments and user preferences, which is impractical due to weight and bulk, and lacks easy adjustability for recoil and accessory compatibility.
Innovation Solution
A modular, adjustable buttstock assembly with a frame, comb assembly, and butt plate, featuring adjustable mechanisms like toggle locks and detent assemblies, allowing for quick reconfiguration between extended and folded positions, accommodating various morphologies and accessories without additional tools.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional firearms are designed for specific tasks and calibers, then reliability and performance are improved, but adaptability and versatility deteriorate
Solution Approach 1:
The firearm employs a modular configuration system where the barrel, stock, and other components can be dynamically reconfigured or replaced. The barrel can be quickly exchanged between different calibers (e.g., 5.56mm, 7.62mm, .300 Win Mag) and the stock can be adjusted or replaced based on mission requirements, transforming a static firearm into a dynamic, adaptable system.
Solution Approach 2:
The firearm is designed as a universal platform capable of performing multiple functions across different combat scenarios. By integrating a common receiver and configuration system that accommodates various barrel calibers, stock types, and accessory configurations, a single firearm can replace multiple specialized weapons, serving as both a standard infantry rifle and a sniper platform.
2Adaptability or versatility
If multiple firearms are carried for different environments and tasks, then adaptability is improved, but weight and bulk increase
Solution Approach 1:
The firearm serves as a universal weapon platform that can be configured for different combat roles including standard infantry use and sniper applications. By accepting multiple barrel calibers and stock configurations through a common receiver design, it eliminates the need for soldiers to carry separate weapons for different missions, significantly reducing pack weight and bulk.
Solution Approach 2:
The firearm is divided into separable modular components including the barrel, receiver, stock, and accessories. This segmentation allows rapid reconfiguration by swapping only the necessary components (e.g., changing from a 5.56mm barrel to a .300 Win Mag sniper barrel) rather than replacing entire weapon systems, optimizing the weight-to-adaptability ratio.
3Adaptability or versatility
If buttstock features are made adjustable for different users and equipment, then adaptability and comfort are improved, but device complexity increases
Solution Approach 1:
The buttstock incorporates dynamic adjustment mechanisms that allow the shooter to modify the stock's length of pull and cheek height in the field. These adjustments enable the firearm to adapt to different user morphologies and equipment configurations without requiring complex permanent modifications or multiple stock options.
Solution Approach 2:
The adjustment mechanisms are designed to be user-operable without requiring tools or external assistance. The shooter can independently adjust the buttstock features during deployment to accommodate their specific needs and the mission requirements, simplifying the overall system by eliminating the need for additional adjustment tools or complex installation procedures.
4Ease of operation
If field adjustments are enabled without additional tools, then ease of operation is improved, but reliability may deteriorate due to potential loosening
Solution Approach 1:
The adjustment mechanisms incorporate self-locking features that automatically secure components in their adjusted positions without requiring tools or additional fastening steps. This self-service design allows field adjustments while maintaining reliability by preventing unintended loosening during recoil and operation.
Solution Approach 2:
The design incorporates an intermediary locking mechanism that acts as a mediator between the adjustable components and the firearm's recoil forces. This intermediate element secures the adjusted components against the high stresses of recoil while allowing intentional adjustment when needed, balancing ease of operation with operational reliability.
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
Enables a lightweight, configurable firearm that can adapt to different ammunition types and user needs, reducing weight and bulk while maintaining performance and ease of use in various combat situations.
Implementation Method 1
The adjustment apparatus can include a feature that can selectively increase the friction between the frame and the guide post and adjustment post to help prevent the translation of the guide post and adjustment post in the bore in the frame
Data Source
AI summary
A modular firearm comprising an adjustable modular buttstock assembly. The buttstock assembly can include a frame with a central opening. A comb assembly having a cheek piece and a butt plate assembly having a recoil pad each can be mounted to the frame by an adjustment apparatus. Each adjustment apparatus can include of a guide post and/or a threaded adjustment post each received in respective bores in the frame to adjust the positions of the cheek piece and recoil pad. The adjustment apparatus also can include a locking or engagement feature that can selectively increase the friction between the frame and the guide post and/or adjustment post, to help prevent the translation of the guide post and/or adjustment post in the bore in the frame to fix the comb assembly and butt plate assembly in desired positions with respect to the frame.