Arrowhead With Offset Fasteners And Symmetrical Apertures
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional arrowheads face challenges in providing a reliable and effective design that is also simple to produce and easy to use, with issues related to blade stability and maintenance during flight and impact.
Innovation Solution
A fixed-blade broadhead design featuring removable blades with offset fasteners and symmetrical airflow apertures, secured to a steel ferrule that extends beyond the body to form a cut-on-contact tip, allowing for balanced flight and easy sharpening or replacement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional arrowhead designs are used, then manufacturing simplicity is maintained, but blade stability and reliability during flight and impact deteriorate
Solution Approach 1:
The arrowhead is divided into a body portion and separate blade portions that can be independently manufactured and assembled. The blades are secured to the body using fasteners, allowing for modular construction that improves reliability while maintaining manufacturing simplicity.
Solution Approach 2:
The arrowhead design incorporates movable or adjustable blade configurations that can adapt during flight and impact. This dynamic capability enhances blade stability and reliability without requiring a completely complex structural design.
2Ease of repair
If fixed blades are used, then structural simplicity is maintained, but ease of maintenance and replacement deteriorates
Solution Approach 1:
The blade and body are segmented as separate components connected by fasteners, enabling easy removal and replacement of blades without replacing the entire arrowhead. This modular approach significantly improves ease of repair.
Solution Approach 2:
The design allows blades to be easily discarded when dull or damaged and replaced with fresh blades, while the body and fastener system are recovered and reused. This approach makes maintenance simple and cost-effective.
3Reliability
If blades extend beyond the body, then cutting effectiveness is improved, but risk of blades falling off increases
Solution Approach 1:
The fastener system is designed to dynamically secure the blades during flight and impact while allowing for easy removal when needed. This dynamic fastening mechanism ensures blade retention without compromising cutting performance.
Solution Approach 2:
The fastener system provides beforehand securing of the blades to the body, preventing them from falling off during flight and impact. This prior cushioning approach ensures reliable blade retention before any potential failure occurs.
4Stability of the object's composition
If symmetrical airflow apertures are added, then flight stability is improved, but manufacturing complexity increases
Solution Approach 1:
The apertures are incorporated into the modular body design, allowing for standardized aperture patterns to be manufactured using simple techniques. This segmentation approach maintains ease of manufacture while achieving flight stability.
Solution Approach 2:
The symmetrical aperture pattern creates homogeneous airflow characteristics around the arrowhead, improving flight stability. The homogeneous design can be achieved through simple manufacturing techniques such as punching or drilling identical holes in a symmetrical pattern.
Data Source
AI summary
An arrowhead includes a body having a longitudinal axis, a first blade, and a first fastener that extends through a portion of the body and engages the first blade to secure the first blade in position relative to the body. The first fastener is offset relative to the longitudinal axis.