Jacketed Archery Arrow Insert System for Side Impact Protection
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Solution Overview
Problem
Traditional archery arrow inserts are vulnerable to breakage due to side impacts, especially when a significant moment arm occurs, as they lack sufficient material at the connection point between the arrow shaft and the screw-in point, leading to potential breakage and increased costs and unrecovered game during hunting.
Innovation Solution
A jacketed archery arrow insert system is introduced, featuring an internally attached torque dissipation rod insert and an externally attached tubular sleeve that strengthens the arrow shaft, allowing it to withstand larger forces without breakage by dissipating torsional stress from side impacts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a traditional one-piece insert is used to attach the screw-in point to the arrow shaft, then the arrow can be assembled, but the connection point lacks sufficient material and is vulnerable to breakage under side impact forces
Solution Approach 1:
The insert system is divided into multiple components: an inner insert with external threads that attaches to the screw-in point, and an outer insert with internal threads that attaches to the arrow shaft. This segmentation distributes the structural load and provides sufficient material at the connection point to resist side impact forces, eliminating the vulnerability of a single one-piece insert.
Solution Approach 2:
The inner insert is nested within the outer insert, with the inner insert having a smaller diameter and fitting inside the outer insert. This nested configuration allows both inserts to work together as a unified strengthening structure, providing enhanced material support at the connection point while maintaining a compact design.
2Reliability
If the arrow shaft is strengthened with additional inserts, then protection against side impacts is improved, but the device complexity increases
Solution Approach 1:
The protective function is segmented between two inserts: the inner insert primarily resists torsional stress from side impacts, while the outer insert provides structural support and attaches to the arrow shaft. This segmentation allows each component to be optimized for its specific function, improving overall reliability without requiring an overly complex system.
Solution Approach 2:
The system uses composite construction with two different insert components made from appropriate materials for their specific functions. The inner insert is designed to dissipate torsional forces, while the outer insert provides structural integrity, creating a composite protective system that enhances reliability.
3Device complexity
If a simpler insert system is used, then device complexity is reduced, but the arrow shaft remains vulnerable to breakage at the connection point
Solution Approach 1:
The segmented two-insert design provides a balance between simplicity and strength. Each insert is a relatively simple component that can be manufactured and assembled independently, yet together they create a robust connection point that resists side impact forces, avoiding the need for overly complex reinforcement structures.
Solution Approach 2:
The nested configuration of the two inserts creates a space-efficient strengthening solution. The inner insert fits within the outer insert, maximizing the protective material at the connection point without significantly increasing the overall diameter or complexity of the arrow assembly.
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 system effectively protects the arrow shaft from breakage, enhancing reliability and reducing costs by providing greater protection against side impacts, ensuring successful hunting and minimizing lost game.
Implementation Method 1
A jacketed archery arrow insert system is introduced, featuring an internally attached torque dissipation rod insert and an externally attached tubular sleeve that strengthens the arrow shaft, allowing it to withstand larger forces without breakage by dissipating torsional stress from side impacts.
Implementation Method 2
Traditional inserts for 0.204 inches (5.2 mm) inner diameter and smaller arrow shafts require a transition insert to make the removal of the arrow from targets easier without the use of unique field points or broadheads. The traditional way to accomplish this is with a one-piece insert that is glued into an opened end of the arrow shaft
Data Source
AI summary
A jacketed archery arrow insert system for an arrow includes a sleeve, a torque dissipation rod insert, and an arrow shaft. The torque dissipation rod insert includes a collar section, a first tail section, and a second tail section. The collar section and the second tail section are oppositely positioned of each other about the first tail section. The collar section is adjacently connected and concentrically positioned to the first tail section. The second tail section is adjacently connected and concentrically positioned to the first tail section. The second tail section is internally mounted to a shaft body of the arrow shaft as the first tail section and the collar section are externally positioned to the shaft body. The sleeve is externally mounted around the shaft body and the first tail section to protect the structural integrity of the torque dissipation rod insert and the arrow shaft.