Retractable Barb Fish Hook for Easier Hook Removal
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Solution Overview
Problem
The presence of a barb on traditional fish hooks can slow down the process of removing the hook from a caught fish and may cause injuries to the fish or user if the barb gets caught in flesh, making the removal process difficult and potentially harmful.
Innovation Solution
A retractable barb fish hook design featuring a body with a hollow interior and an insert, where a wire with a barb can be retracted by rotating an eye bolt or eye nut, allowing the barb to be exposed or retracted relative to the hook end, facilitating easy removal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a barb is present on the hook, then the hook can effectively catch onto fish tissues, but the removal process is slowed down and may cause injuries
Solution Approach 1:
The barb is made movable rather than fixed, allowing it to be in a protruding position during hooking and a retracted position during removal. The barb can dynamically change its position between these two states, resolving the contradiction between needing it extended for catching and retracted for easy removal.
Solution Approach 2:
The hook is divided into separate functional components: the main hook body and the movable barb. This segmentation allows the barb to be independently controlled and positioned, enabling it to be extended when needed for catching and retracted when needed for removal without affecting the rest of the hook structure.
2Ease of operation
If the barb is retracted, then the hook can be easily removed from flesh, but the hook cannot effectively catch onto fish tissues
Solution Approach 1:
The barb transitions between static states (protruding and retracted) based on operational needs. When the hook needs to catch, the barb is extended; when removal is needed, the barb is retracted. This dynamic state change allows the system to optimize for either catching or removal as required.
Solution Approach 2:
The barb is preliminarily positioned in the protruding state before hooking occurs, ensuring effective catching. After the fish is caught and before removal, the barb is preliminarily retracted to prepare for easy removal, anticipating the next operational need.
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 retractable barb design enables easy and injury-free removal of the hook from fish or flesh by retracting the barb, improving the efficiency and safety of the hook removal process.
Implementation Method 1
exerting a force on the wire sufficient to deform the barb
Data Source
AI summary
A retractable barb fish hook and associated components and methods. The fish hook can include a body and an insert. The insert is movable relative to the body to deform a barb to facilitate removal of the hook.