Rotatable Rear Gun Sight Aperture Selection
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Solution Overview
Problem
Conventional gun sights lack versatility in accommodating varying target distances, particularly for long-range firearms, as they often rely on fixed apertures and alignment systems that do not efficiently adjust for different shooting conditions.
Innovation Solution
A rotatable and retractable rear gun sight with multiple apertures spaced along its axis, allowing for adjustment of target distance estimation, combined with a retractable frame member that changes shooting position, enabling easier alignment and adjustment for different shooting scenarios.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a fixed aperture rear sight is used, then the structure is simple, but the adaptability for different target distances is poor
Solution Approach 1:
The rear sight aperture is made rotatable about a first axis of rotation, allowing dynamic switching between multiple apertures corresponding to different target distances. This transforms the static fixed aperture into a dynamic adjustable component, enabling the sight to adapt to various shooting scenarios without requiring multiple separate sights.
Solution Approach 2:
The rear sight is divided into multiple discrete apertures spaced along the axis of rotation, with each aperture corresponding to a specific target distance range. This segmentation allows the user to select the appropriate aperture for the current shooting condition, providing versatility while maintaining a single integrated sight structure.
2Adaptability or versatility
If multiple apertures are provided for different distances, then the adaptability improves, but the device complexity increases
Solution Approach 1:
Multiple apertures for different target distances are combined into a single rotatable rear sight member. Instead of providing separate sights for different distances, the invention merges them into one integrated component that can be rotated to select the appropriate aperture, reducing the overall number of parts while maintaining versatility.
Solution Approach 2:
The rotatable rear sight member serves multiple functions by providing different apertures for various target distances through a single component. This multi-functionality eliminates the need for multiple separate sights, reducing device complexity while maintaining high adaptability across different shooting scenarios.
3Ease of operation
If the rear sight is made retractable, then the ease of operation improves, but the device complexity increases
Solution Approach 1:
The rear sight is made retractable along the barrel axis, allowing it to move between a forward position during shooting and a retracted position for adjustment or storage. This dynamic capability simplifies operation by enabling easy access to the sight for alignment and adjustment without requiring the user to handle separate components.
Solution Approach 2:
The rear sight is designed to nest within the gun barrel when retracted, similar to a nested doll configuration. This nesting mechanism allows the sight to be stored compactly within the barrel when not in use, reducing the overall profile and simplifying operation while maintaining full functionality during shooting.
4Measurement precision
If apertures are spaced further apart from the axis of rotation, then the target distance estimation accuracy improves, but the alignment precision requirement increases
Solution Approach 1:
The invention provides multiple apertures at different radial distances from the axis of rotation, with each aperture corresponding to a specific target distance range. By changing the radial parameter of the aperture position, the system achieves different target distance estimation accuracies without requiring excessive alignment precision, as each aperture is optimized for its designated distance range.
Data Source
AI summary
A rotatable and retractable rear gun sight is disclosed. The rear gun sight is coupled to a body of a gun. Three different apertures are provided for rear sight viewing of targets of three different distances. The apertures can be rotated out of view or into use depending on the estimated target distance. The rear gun sight can also be flipped down.