Broadhead Arrow Point Radial Blade Segmentation

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Solution Overview

Problem

Existing broadhead arrow points lack the necessary accuracy and stability, despite advancements in the field.

Innovation Solution

A broadhead arrow point design featuring eight or more equally radially spaced exposed blades, with inserts engaging notches in the center of the blades to enhance stability and accuracy.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If traditional broadhead designs are used, then manufacturing simplicity is maintained, but accuracy and stability deteriorate

Engineering Contradiction:

ImproveaccuracyVSAvoidblade configuration

Core Design Contradiction:

Manufacturing precisionVSDevice complexity

Solution Approach 1:

The broadhead is divided into multiple individual blades (eight or more) that are radially spaced around the central axis. Each blade is a separate component that can be independently positioned and secured, allowing for precise angular spacing while maintaining manufacturing feasibility through modular assembly

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The blades are positioned at specific asymmetric angular intervals around the central axis rather than symmetric distribution. This asymmetric radial spacing optimizes aerodynamic stability and flight accuracy while distributing the cutting elements evenly around the arrow shaft

Inventive Principle:

Principle #4Asymmetry

2Stability of the object's composition

If traditional broadhead designs are used, then structural simplicity is maintained, but stability deteriorates

Engineering Contradiction:

ImprovestabilityVSAvoidblade arrangement

Core Design Contradiction:

Stability of the object's compositionVSDevice complexity

Solution Approach 1:

The broadhead structure is segmented into multiple discrete blades arranged radially around the central axis. This segmentation creates a balanced distribution of mass and cutting surfaces that enhances flight stability while allowing each blade to be independently optimized

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The blades are arranged in a radial pattern around the central axis, transitioning from a simple linear or planar configuration to a three-dimensional radial arrangement. This dimensional change creates superior aerodynamic stability and balance during arrow flight

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

3Manufacturing precision

If fewer blades are used, then device complexity is reduced, but accuracy deteriorates

Engineering Contradiction:

ImproveaccuracyVSAvoidnumber of blades

Core Design Contradiction:

Manufacturing precisionVSQuantity of substance

Solution Approach 1:

The cutting surface is segmented into eight or more individual blades instead of using fewer larger blades. This segmentation allows for more precise angular positioning around the central axis, improving accuracy through better distribution of cutting forces and aerodynamic balance

Inventive Principle:

Principle #1Segmentation

Data Source

PatentUS11085743B2Arrowhead

Publication Date: 2021.08.10 CENTERCROSS ARCHERY LLC

AI summary

An arrowhead includes a ferrule member and four blade members. The ferrule member defines an outer surface, a chamber, and first, second, third, fourth, fifth, sixth, seventh, and eighth slots that extend from the chamber to the outer surface. A first blade member extends through the first and second slots; a second blade member extends through the third and fourth slots; a third blade member extends through the fifth and sixth slots; and a fourth blade member extends through the seventh and eighth slots.