Adjustable Rifle Butt Stock with Segmented Movable Parts
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Traditional rifle stocks are either custom-made and inflexible or offer limited adjustability, failing to adapt to shooters' changing morphologies, and complex adjustable stocks compromise the weapon's volume and behavior.
Innovation Solution
A rifle butt design with at least two movable support parts that can adjust relative to each other and the rifle body along multiple axes, providing fine-tuned support and alignment adjustments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a custom-made rifle stock is made to adapt to the shooter's morphology, then the adaptation precision is improved, but the cost increases and the rifle stock becomes inflexible for future modifications
Solution Approach 1:
The rifle stock is divided into multiple adjustable components including a forend with longitudinal adjustment, a heel with vertical and angular adjustment, and a cheekpiece with positional adjustment. Each segment can be independently modified to adapt to the shooter's morphology without requiring a complete custom-made stock, thus maintaining flexibility while achieving precision adaptation.
Solution Approach 2:
The rifle stock transitions from a static, fixed design to a dynamic, adjustable system. The forend, heel, and cheekpiece can be adjusted along multiple axes and locked into position, allowing the stock to adapt to different shooters and changing morphologies over time, thereby maintaining both precision and flexibility.
2Adaptability or versatility
If adjustable mechanisms are added to allow modification of the rifle stock, then the adaptability is improved, but the device complexity increases
Solution Approach 1:
The adjustment system is segmented into independent modules: forend adjustment mechanism, heel adjustment mechanism, and cheekpiece adjustment mechanism. Each module handles a specific degree of freedom and can be adjusted independently, simplifying the overall system while providing comprehensive adaptability across multiple axes.
Solution Approach 2:
The patent provides more adjustment capabilities than strictly necessary (excessive action), including longitudinal, vertical, and angular adjustments beyond what a single mechanism would provide. This distributed approach across multiple simple mechanisms achieves comprehensive adjustability without requiring a single complex mechanism.
3Adaptability or versatility
If complex articulated parts are used to increase adjustment possibilities, then the adaptability is improved, but the volume of the rifle stock is reduced and the optimal shape is modified
Solution Approach 1:
The adjustment functions are distributed across multiple discrete components (forend, heel, cheekpiece) rather than incorporating a single large articulated mechanism. This segmentation allows each component to maintain its traditional shape and volume while collectively providing comprehensive adjustment capabilities, preserving the overall rifle stock volume and optimal form.
Solution Approach 2:
Adjustment is achieved by adding degrees of freedom in different spatial dimensions (longitudinal, vertical, angular) through separate components rather than expanding a single mechanism in one dimension. This approach maintains the compact volume and traditional shape of the rifle stock while providing multi-dimensional adjustability.
Data Source
Figure 1
Figure 2
Figure 3
AI summary
Disclosed is a gun heel (1) characterised in that it comprises at least two separate bearing parts (4, 5) designed for bearing on the body of the user, at least one of the bearing parts being movable relative to the other for adjusting the position of said part.