Offset Blade Arrowhead for Deep Penetration and Wound Channel
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Solution Overview
Problem
Conventional arrowheads either have blades that limit penetration depth due to immediate force transfer or tips that create minimal wound channels, failing to effectively bring down animals with tough hides.
Innovation Solution
An arrowhead design featuring a blade carrying body with offset blades, where the force is initially transmitted through a small tip area for penetration, followed by the blades creating a larger wound channel, allowing for deeper penetration and quicker subduing of the animal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If blades are positioned at the tip of the arrowhead, then the wound channel is larger, but the penetration depth is limited due to immediate force transfer to the blades
Solution Approach 1:
The arrowhead is segmented into distinct functional zones: a tip portion for penetration and blade portions for wound channel creation. The blades are offset rearward from the tip by a distance d, creating spatial separation between the penetration function and the cutting function. This segmentation allows the tip to penetrate deeply without the blades interfering with the penetration process, while still creating an effective wound channel once the tip has penetrated the target.
Solution Approach 2:
The invention introduces a longitudinal dimension offset between the tip and blades along the arrowhead's central axis. By positioning the blades at a rearward offset distance d from the tip along the length of the arrowhead, the design transforms the traditional co-located tip-blade arrangement into a distributed spatial configuration. This dimensional separation enables independent optimization of penetration depth and wound channel size.
2Length of moving object
If the tip area is minimized for deep penetration, then the penetration depth improves, but the wound channel created is minimal
Solution Approach 1:
The arrowhead is segmented into distinct functional zones: a tip portion for penetration and blade portions for wound channel creation. The blades are offset rearward from the tip by a distance d, creating spatial separation between the penetration function and the cutting function. This segmentation allows the tip to penetrate deeply without the blades interfering with the penetration process, while still creating an effective wound channel once the tip has penetrated the target.
Solution Approach 2:
The tip portion performs the preliminary action of penetrating the target's tough hide before the blades engage. By designing the tip with a small cross-sectional area and positioning it forward of the blades, the invention ensures that penetration occurs first, creating a pathway through the resistant outer layer. Only after this preliminary penetration is achieved do the offset blades begin to create the wound channel, ensuring both deep penetration and effective wounding.
3Ease of manufacture
If the arrowhead is designed as a single integrated piece, then manufacturing is simpler, but field assembly and disassembly for parts replacement is difficult
Solution Approach 1:
The arrowhead is divided into separable components including a tip portion and blade portions that can be independently manufactured and assembled. The offset configuration with distance d between the tip and blades provides natural separation zones that facilitate modular construction. This segmentation enables field disassembly and replacement of damaged blades or tips without requiring specialized tools or complex procedures, while still allowing for integrated manufacturing when desired.
Solution Approach 2:
The arrowhead design transitions from a static monolithic structure to a dynamic modular system where components can be independently replaced. The offset blade configuration creates distinct functional modules that can be selectively assembled or disassembled based on operational needs, enabling adaptability in the field while maintaining manufacturing flexibility.
Data Source
AI summary
An archery arrowhead having a tip and a body with blade slots that each accept a blade. Each blade having a leading edge and an opposite trailing edge. The leading edge formed by a first cutting surface and a second cutting surface that diverge from each other in a rearward direction from the leading edge to the trailing edge. The first cutting surface and the second cutting surface forming a point, the point offset from a rearward edge of the tip.