Ice-Fishing Tip-Up Torsional Spring Trigger Mechanism
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Solution Overview
Problem
Existing ice-fishing tip-ups lack efficient mechanisms for automatically detecting fish bites and effectively managing fishing line tension to prevent fish from releasing hooks or lures, leading to reduced catch rates and potential harm to fish.
Innovation Solution
The ice-fishing tip-up incorporates a torsional spring and trigger link mechanism that biases the fishing rod to detect fish bites by rotating the rod tip away from the ice hole, utilizing a reel assembly with adjustable drag to manage line tension and prevent fish from swallowing hooks or lures, while a flexible cover facilitates storage and travel.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a traditional ice-fishing tip-up is used without a torsional spring and trigger link mechanism, then the device structure is simpler, but the ability to detect fish bites and maintain line tension is insufficient, leading to reduced catch rates
Solution Approach 1:
The torsional spring is pre-loaded to bias the rod tip away from the ice hole before fishing begins. This preliminary positioning creates immediate readiness to detect fish bites, as any movement of the bait will trigger the rod to rotate and signal a bite, eliminating the need for continuous monitoring.
Solution Approach 2:
The trigger link mechanism automatically detects fish bites through the rotation of the rod tip and triggers the flag to rise without human intervention. The system serves itself by converting the physical movement of a biting fish into an observable signal, improving reliability while maintaining relatively simple construction.
2Reliability
If adjustable drag is not incorporated into the reel assembly, then the device structure is simpler, but fish may release hooks or lures due to insufficient line tension management
Solution Approach 1:
The reel assembly incorporates an adjustable drag mechanism that allows dynamic control of line tension based on fishing conditions and target species. The drag can be modified during fishing to optimize between preventing fish from releasing hooks and allowing natural fighting behavior, thereby improving reliability without requiring completely complex mechanisms.
Solution Approach 2:
The adjustable drag system enables changing the friction parameter in the reel assembly to match different fishing scenarios. By modifying the drag setting, the line tension can be optimized for various fish sizes and fishing techniques, ensuring reliable hook retention while maintaining manageable device complexity through a single adjustable parameter.
3Ease of operation
If the ice-fishing tip-up is designed for portability with a flexible cover, then ease of storage and travel is improved, but the device may be more vulnerable to damage during transport
Solution Approach 1:
A flexible cover is used to protect the ice-fishing tip-up during transport and storage. The flexible material can conform to the device shape, providing protection while allowing the compact folded configuration that enables portability. The flexibility allows the cover to absorb minor impacts without rigid structure damage.
Solution Approach 2:
The rod and other components are designed to nest within the base structure when not in use, creating a compact configuration that fits within the flexible cover. This nesting arrangement maximizes portability by minimizing the overall size while the flexible cover provides protective encapsulation for the nested components.
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
This design enhances the ability to catch and release fish by ensuring sufficient line tension and preventing fish from swallowing hooks or lures, improving catch rates and reducing fish harm, while also being portable and easy to store.
Implementation Method 1
A torsional spring may be coupled to the fishing rod and operatively engaged with the pivot support bracket so as to provide for biasing the rod tip away from the ice hole
Implementation Method 2
utilizing a reel assembly with adjustable drag to manage line tension and prevent fish from swallowing hooks or lures
Data Source
AI summary
A rod tip of a spring-biased fishing rod pivoted from a pivot support bracket on the base of an ice-fishing tip-up is biased away from a through-hole in the base. Fishing line from the spool of a controllable-drag reel assembly, routed through an associated line guide, an eye portion of a trigger link, the rod tip, and the through-hole, is attached to a hook. The trigger link engages an intermediate portion of the fishing rod and retains the fishing rod in a cocked condition against the spring bias. A flexible cover provides for covering the associated ice hole and securing the tip-up in a folded condition with the associated spring disengaged. Tension in the fishing line when catching a fish causes the trigger link to release the fishing rod, which is rotationally accelerated sufficiently fast to prevent the fish from swallowing the hook.