Archery Sight Assembly Positioning Mechanism
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Solution Overview
Problem
Existing archery sights lack precise and repeatable adjustment mechanisms to account for varying distances and crosswinds, which affects the accuracy of arrow shots.
Innovation Solution
An archery sight assembly with a positioning mechanism that includes a linear bearing, adjustable pointer, and gear system, allowing for precise adjustments along multiple axes and orientations, coupled with a mounting bracket for rigid attachment to the bow.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a simple positioning mechanism is used to couple the sight to the bow, then the device complexity is reduced, but the adjustment precision and repeatability deteriorate
Solution Approach 1:
The positioning mechanism is segmented into multiple independent adjustment components: a mounting bracket for rigid attachment, a sight assembly with separate adjustment mechanisms for vertical and horizontal movement, and a reticle assembly with independent windage and elevation adjustments. Each segment handles a specific adjustment function, allowing precise control without requiring an overly complex integrated mechanism.
Solution Approach 2:
The positioning mechanism incorporates dynamic adjustment capabilities through threaded rods with knurled knobs that allow the archer to adjust the sight and reticle positions during field use. The mechanism transitions from a fixed rigid structure to a dynamically adjustable system, enabling repeatable repositioning while maintaining structural integrity through precision-machined threaded connections.
2Measurement precision
If an adjustable positioning mechanism is added to enable precise sight adjustments, then the adjustment precision improves, but the device complexity increases
Solution Approach 1:
The positioning mechanism incorporates dynamic adjustment capabilities through threaded rods with knurled knobs that allow the archer to adjust the sight and reticle positions during field use. The mechanism transitions from a fixed rigid structure to a dynamically adjustable system, enabling repeatable repositioning while maintaining structural integrity through precision-machined threaded connections.
Solution Approach 2:
The adjustment mechanism is designed to be self-contained and self-adjusting, with the archer directly manipulating knurled knobs on threaded rods to reposition components. The system includes its own adjustment interface without requiring external tools or complex actuation systems, making the precision adjustment capability self-service and reducing overall device complexity.
3Stability of the object's composition
If a rigid mounting bracket is used to attach the sight to the bow, then the stability of the sight position is improved, but the adaptability for different adjustment positions deteriorates
Solution Approach 1:
The mounting system is segmented into a rigid mounting bracket that provides stable attachment to the bow, and separate adjustable components (sight assembly and reticle assembly) that can be repositioned independently. The bracket itself contains threaded adjustment features that allow the entire sight assembly to be repositioned while maintaining rigid connection to the bow, thus providing both stability and adaptability.
Solution Approach 2:
The mounting bracket is designed with universal adaptability, incorporating threaded rods and adjustment mechanisms that allow the same rigid bracket structure to accommodate multiple position adjustments. The bracket serves dual functions: providing stable rigid attachment to the bow while simultaneously enabling versatile repositioning of the sight and reticle assemblies through its integrated adjustment features.
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 accurate and repeatable adjustments for aiming at different distances and compensating for windage, enhancing the precision and reliability of arrow shots.
Implementation Method 1
Each cylindrical bearing member is positioned with its corresponding cylinder axis substantially parallel to the defined direction of motion and is engaged with corresponding facing bearing track and bearing slide grooves. Each cylindrical bearing is arranged to slide along at least one of the corresponding engaged grooves as the bearing slide moves along the defined direction within the bearing track.
Data Source
AI summary
An archery sight assembly comprises a sight, a mounting bracket, and a positioning mechanism for providing adjustment of relative positions or orientations of sight and bracket, which can include a transverse position relative to a sighting direction defined by the sight. The positioning mechanism can include a linear bearing with cylindrical bearing members, a scale and a pointer adjustable relative to the scale, or a rack coupled by one or more gears to an adjustment knob. A method for making the archery sight assembly comprises coupling the archery sight to the mounting bracket using the positioning mechanism. A method for using the archery sight assembly comprises adjusting the position or orientation of the archery sight relative to the mounting bracket using the positioning mechanism.