Rotating Gun Stock with Rotary Positioning Disc
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Solution Overview
Problem
Existing rotating gun stock solutions are incompatible with protective vests, difficult to switch between positions, challenging to assemble/disassemble, limited to right- or left-handed shooters, and not adaptable across various firearms, including handguns, with adjustments often requiring specialized tools.
Innovation Solution
A rotating gun stock with a rotary positioning disc and selector mechanism that allows for easy adjustment of the butt's position to zero degrees, 90 degrees, -90 degrees, and 180 degrees without specialized tools, compatible with a wide range of firearms, including handguns, and can be retrofitted onto existing weapons.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a rotating gun stock mechanism is implemented, then adaptability to different shooters and firearms is improved, but device complexity increases
Solution Approach 1:
The gun stock is divided into modular components: a fore-end, a butt section, and a rotary positioning disc with multiple accepting slots. This segmentation allows the butt to rotate independently to different positions (0°, 90°, -90°, 180°) while maintaining structural integrity, thereby achieving adaptability without excessive complexity
Solution Approach 2:
The rotary positioning disc with multiple accepting slots provides multi-functionality by enabling the same gun stock to accommodate different shooters (right-handed, left-handed) and different firearm types (rifles, handguns) through simple rotation, eliminating the need for multiple specialized stock designs
2Ease of operation
If multiple rotational positions are enabled, then ease of operation is improved, but reliability may deteriorate due to positioning accuracy
Solution Approach 1:
The selector mechanism automatically engages with the accepting slots on the rotary positioning disc, providing self-locking at each rotational position (0°, 90°, -90°, 180°). This self-service feature ensures reliable positioning without requiring additional locking tools or complex adjustment procedures, maintaining both ease of operation and positioning accuracy
3Ease of operation
If tool-free adjustment is implemented, then ease of operation is improved, but manufacturing precision requirements increase
Solution Approach 1:
The selector and accepting slots are designed with slight clearance and elastic deformation capabilities, allowing the selector to flex slightly during insertion and engagement. This dynamic design compensates for minor manufacturing tolerances while ensuring reliable tool-free adjustment, balancing ease of operation with achievable manufacturing precision
Data Source
AI summary
A rotating gun stock for a firearm having a gun stock fore-end, the rotating gun stock comprising: a rotary positioning disc fixed within the fore-end, the fore-end having a distal end, a proximal end, and a longitudinal axis, the rotary disc fixed within the fore-end substantially at the distal end; the rotary disc further having a first and a second face and a center coaxial with the longitudinal axis, the first face directed towards the proximal end and the second face having a plurality of concentric accepting slots and a radial slot formed therein, the radial slot formed to communicate perpendicularly with the plurality of accepting slots; a butt positioned substantially perpendicularly to the fore-end at the distal end, the butt rotatably attached to the center of the rotary positioning disc, the butt constrained to rotate only about the longitudinal axis; a selector inserted within a selector slot in the butt, the selector protruding into the radial slot and thereby successively into the plurality of accepting slots; wherein rotation of the butt is configured to be selected by the selector to enable a plurality of butt rotational positions about the longitudinal axis, including a lock position of zero degrees.