Archery Bow Stabilizer with Elliptical Cross-Section
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Solution Overview
Problem
Conventional archery bow stabilizers are susceptible to crosswinds, which can destabilize the bow and affect shooting accuracy, as they often have a circular cross-section that acts as a wind vane, causing unintended movement.
Innovation Solution
An archery bow stabilizer with an elliptical cross-section and a threaded attachment system that minimizes exposure to crosswind forces, featuring a greater width than height ratio to reduce aerodynamic drag and includes damping members to stabilize the bow during shooting.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a circular cross-section stabilizer is used, then the stabilizer provides balanced structural strength, but it acts as a wind vane in crosswinds causing bow destabilization
Solution Approach 1:
The patent applies asymmetry by changing the stabilizer cross-section from circular to elliptical. The elliptical cross-section has a major axis and minor axis with different dimensions, creating an asymmetric shape that reduces wind vane effect. The asymmetry ratio (major axis to minor axis) is specified as 1.1 to 1.5, optimizing the balance between structural strength and crosswind resistance.
2Stability of the object's composition
If the stabilizer extends forward from the bow, then it provides effective counterweight for stabilization, but it increases exposure to crosswind forces
Solution Approach 1:
The elliptical cross-section with asymmetric dimensions (major axis greater than minor axis) reduces the stabilizer's profile in the direction of crosswinds while maintaining sufficient length for stabilization. The asymmetric shape presents a smaller effective area to crosswind forces compared to a circular section of equivalent stabilization capability.
3Stability of the object's composition
If the stabilizer has a larger cross-sectional area, then it provides greater counterweight for stability, but it increases aerodynamic drag from crosswinds
Solution Approach 1:
The elliptical cross-section distributes the cross-sectional area asymmetrically, with the major axis providing sufficient counterweight effectiveness while the minor axis dimension minimizes the profile exposed to crosswinds. This asymmetric area distribution reduces aerodynamic drag while maintaining stabilization effectiveness.
4Adaptability or versatility
If a threaded attachment system is used, then the stabilizer rotation position is adjustable for optimal alignment, but the device complexity increases
Solution Approach 1:
The patent merges the attachment function and rotation adjustment function into a single threaded attachment system. The threaded mechanism simultaneously provides secure mounting to the bow and enables rotation to various positions, combining multiple functions in one integrated component rather than separate systems.
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
The elliptical design reduces the impact of crosswinds, maintaining bow stability and improving shooting accuracy by minimizing the effects of environmental conditions, while the adjustable attachment system ensures optimal alignment and secure mounting.
Implementation Method 1
The stabilizer member has an elliptical-shaped cross-section having a ratio of a minor axis dimension to a major axis dimension of about 0.6 or less to minimize a profile of the stabilizer exposed to crosswind forces
Implementation Method 2
The stabilizer member may include an elongate body and at least one damping member connected to an outer surface of the elongate body
Data Source
AI summary
An archery bow stabilizer includes a proximal end, a distal end, and an elliptical shaped cross-section. The elliptical shaped cross-section is arranged perpendicular to a length dimension of the stabilizer at a location between the proximal and distal ends. The elliptical shaped cross-section has a ratio of a maximum height dimension to a maximum width dimension that is about 0.6 or less.