Firearm Stock with Rotatable Sections and Universal Joint
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Solution Overview
Problem
Existing firearm stocks do not adequately adapt to the individual anatomy and holding preferences of shooters, leading to suboptimal comfort and accuracy during use.
Innovation Solution
A firearm stock design featuring rotatable front and rear sections, a central connecting section, and adjustable elements such as a chest member and shoulder cap, allowing for customizable alignment and positioning to better fit the shooter's body and preferences.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the stock is designed as a rigid single piece, then the structural strength and manufacturing simplicity are improved, but the adaptability to different shooter anatomies and holding preferences deteriorates
Solution Approach 1:
The stock is divided into multiple separable sections: a forend section, a buttstock section, and an intermediate section with a universal joint. This segmentation allows each section to be independently adjusted while maintaining overall structural integrity, resolving the contradiction between rigidity and adaptability.
Solution Approach 2:
The universal joint in the intermediate section provides dynamic adjustability, allowing the forend and buttstock to be positioned at different angles relative to each other. This enables the stock to adapt to various shooter anatomies and holding preferences while maintaining structural strength through controlled mechanical connection.
2Ease of manufacture
If the stock is designed as a rigid single piece, then the manufacturing simplicity is improved, but the adaptability to different holding preferences deteriorates
Solution Approach 1:
By dividing the stock into standardized sections that can be manufactured separately and assembled with a universal joint, the design maintains relative manufacturing simplicity while enabling multiple configurations to accommodate different holding preferences.
Solution Approach 2:
The universal joint serves as a universal connection mechanism that accommodates multiple angular positions and configurations, making the stock adaptable to various holding preferences without requiring completely different designs for each scenario.
3Stability of the object's composition
If the forend and buttstock are fixed relative to each other, then the structural stability is improved, but the adaptability to shooter body contour deteriorates
Solution Approach 1:
The universal joint enables dynamic positioning of the forend relative to the buttstock, allowing the stock to conform to different shooter body contours while maintaining structural stability through controlled mechanical connection. The joint provides stable support in any selected angular position.
Data Source
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AI summary
Stock (1) of a firearm, in particular a sporting firearm, comprising: a front stock section (2) extending along a front longitudinal stock axis (2A), and a rear stock section (3) extending along a rear longitudinal stock axis (3A), wherein the front stock section (2) and the rear stock section (3) are rotatable relative to each other about the front or rear longitudinal stock axis (2A, 3A) and/or wherein a chest element (10, 10') for resting against the shooter's chest is provided on the rear stock section (3) and/or wherein a cheek rest (6) is displaceable along the rear stock section (3) and/or wherein at least one contact element (21) of a shoulder cap (5, 5') is displaceable about a first or second longitudinal axis (19,20) is pivotable and/or wherein the length (L) of the rear shaft section (3) is variable and/or wherein a handle (9) of the shaft (1) is movable relative to the shaft (1).