Self-Setting Rod Holder with Torsion Spring Trigger
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Solution Overview
Problem
Existing fishing rod holders and automatic hook setting devices are complex, cumbersome, and difficult for anglers to use, especially for handicapped or elderly individuals, often requiring manual retrieval of the line and fish, leading to injuries and line damage.
Innovation Solution
A self-setting quick-release rod holder that utilizes a torsion spring to rotate the rod holder upward upon fish strike, triggered by fishing line tension, automatically setting the hook in the fish's mouth, allowing easy retrieval of the rod for reeling in.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If existing automatic hook setting devices are used, then hook setting automation is achieved, but device complexity and ease of operation deteriorate
Solution Approach 1:
The device is divided into distinct functional segments: a rod holder portion that secures the fishing rod, and a hook setting portion that automatically sets the hook. These portions are connected through a simple hinge mechanism, allowing independent optimization of each function while maintaining overall simplicity.
Solution Approach 2:
The complex mechanisms from prior automatic hook setting devices are extracted and replaced with a simple torsion spring-based hinge mechanism. Only the essential hook-setting function is retained, eliminating unnecessary complexity while maintaining automation.
2Extent of automation
If existing automatic hook setting devices are used, then hook setting automation is achieved, but ease of operation deteriorates
Solution Approach 1:
The device performs the hook-setting action automatically through the torsion spring mechanism that rotates the hook setting portion upward when triggered by line tension, eliminating the need for manual intervention. The system serves itself by using the fishing line tension as the triggering mechanism.
Solution Approach 2:
The hinge mechanism allows dynamic movement between the rod holder portion and hook setting portion, enabling automatic rotation upward when triggered. This dynamic capability provides ease of operation while maintaining automation.
3Device complexity
If manual retrieval of line and fish is required, then device complexity is reduced, but harmful factors increase
Solution Approach 1:
The automatic hook setting mechanism eliminates the need for manual retrieval of the line and fish by automatically setting the hook upon fish strike, preventing hand cuts and line damage while keeping the device simple.
Solution Approach 2:
The hook is positioned and ready to set in advance before the fish is hooked. When the fish strikes and tensions the line, the pre-positioned hook automatically sets, preventing the harmful effects of manual retrieval.
4Extent of automation
If complex automatic hook setting devices are used, then hook setting automation is achieved, but adaptability deteriorates
Solution Approach 1:
By dividing the device into simple, distinct portions (rod holder and hook setting portion) connected by a hinge, the system becomes easier to adapt and use for various anglers including handicapped and elderly individuals, while maintaining automation.
Solution Approach 2:
The simple hinge and torsion spring mechanism provides universal applicability, making the automatic hook setting function accessible and usable by a broader range of anglers regardless of physical capability.
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
Enables efficient and safe fishing by automatically setting the hook upon fish strike, reducing the risk of the hook being swallowed and allowing anglers to easily fight and reel in the fish without manual intervention, improving usability for all anglers including the handicapped and elderly.
Implementation Method 1
uses a torsion spring to rotate the fishing rod upward once the trigger holding the torsion spring in place is released by fishing line tension caused by a fish strike
Data Source
AI summary
An automatic hook setting rod holder is comprised of a flat base supporting a rod holder that rotates vertically upward when a fish strikes a hook, thereby setting the hook. A torsion spring and bar assembly lies under the rod holder and is held in a pre-strike position by a trigger rod. The trigger rod is connected to the base and has a bearing surface to hold the loaded torsion spring and bar assembly in a pre-strike position. The trigger rod has a bent end to receive and hold the fishing line before a fish strike. Once a fish strikes, tension on the fishing line pulls and rotates the trigger rod away from the torsion spring and bar assembly, thereby releasing it and causing it to contact the rod holder, which in turn causes it to rotate upward and sets the hook in the fish's mouth.