Adjustable Archery Arrow Insert Impact Force Management
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Solution Overview
Problem
Traditional arrow tip attachment methods result in permanent fixation, leading to damage of the arrow shaft due to concentrated impact forces, and fail to allow easy tip switching or reuse with alternative shafts.
Innovation Solution
An adjustable archery arrow system comprising a three-piece design with an arrow tip insert, collar, and tip, where the arrow tip is attached to the insert and collar, transferring impact forces away from the arrow shaft's front edge, allowing weight adjustment and interchangeable components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If arrow tips are directly mounted to arrow shafts with fixed attachment, then the connection strength is improved, but the adaptability to change tips or reuse with alternative shafts deteriorates
Solution Approach 1:
The arrow tip assembly is divided into separate components: an arrow tip insert with a threaded bore and an arrow tip with external threads. This segmentation allows the tip to be easily detached and replaced while maintaining a strong connection when assembled, resolving the contradiction between connection strength and adaptability.
Solution Approach 2:
The attachment system transitions from a fixed, permanent connection to a dynamic, adjustable connection using threads that allow easy assembly and disassembly. This enables the user to switch tips or reuse components with alternative shafts while maintaining secure attachment during use.
2Device complexity
If arrow tips are directly mounted to arrow shafts, then the simplicity of the attachment method is improved, but the damage to the arrow shaft from concentrated impact forces deteriorates
Solution Approach 1:
The threaded insert acts as an intermediary component between the arrow tip and the arrow shaft. It distributes the impact forces from the tip across a larger area of the shaft through its threaded engagement, reducing concentrated stress and preventing damage to the shaft while maintaining a relatively simple attachment structure.
3Strength
If traditional arrow tip inserts are used with circumferential grooves, then the connection strength between insert and shaft is improved, but the concentration of impact forces on the front edge of the shaft deteriorates
Solution Approach 1:
The threaded insert provides localized engagement with the shaft through its threaded bore, distributing forces across the threaded surface area rather than concentrating them at a single front edge contact point. This local quality of threaded engagement reduces impact concentration while maintaining connection strength.
Data Source
AI summary
The Adjustable Archery Arrow Insert is a three-piece arrow tip attached to an arrow shaft and includes an arrow tip insert, an arrow tip collar, and an arrow tip. The arrow tip insert is threadably received by the arrow tip collar and is attached to the arrow shaft, where the arrow tip is inserted within, and the arrow tip collar overlaps, the arrow shaft. The arrow tip is inserted through the arrow tip collar and attached directly to the arrow tip insert without protruding into the arrow shaft. Sections of the arrow tip insert may be removed to adjust the overall weight of the arrow. The Adjustable Archery Arrow Insert transfers the impact forces of the arrow tip to the arrow tip insert and arrow tip collar, where the forces are transferred over a larger area thereby minimizing the forces on front edge of the arrow shaft.