Hollow Fishing Rod Line Control Without a Traditional Reel
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Solution Overview
Problem
Fly fishing and Tenkara fishing methods face challenges with rod and reel weight causing fatigue, and limitations in line length adjustment, making it difficult to handle and retract lines, especially when fishing alone.
Innovation Solution
A fishing rod with a hollow body and a free line cast control and drag mechanism that allows for precise casting and line length adjustment, eliminating the need for a traditional reel by threading the line through the rod body and using a mechanism to apply pressure for control, enabling easy casting and retraction of the line.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a traditional reel and rod combination is used for fly fishing, then the casting function is achieved, but the weight of the reel and rod causes fatigue
Solution Approach 1:
The patent removes the traditional reel from the fishing system and integrates only the essential line control function directly into the rod. The rod becomes hollow to accommodate the line running through its interior, eliminating the separate reel component and its associated weight, while preserving the core function of line deployment and retrieval.
Solution Approach 2:
The patent combines the line storage, line deployment, and line retrieval functions that were previously separated into distinct components (reel, rod, line) into a single integrated rod structure. The hollow rod body serves as both the structural element and the line conduit, merging multiple functions into one component to reduce overall system weight.
2Adaptability or versatility
If Tenkara fishing with a fixed length line is used, then the setup is simple, but the line length cannot be adjusted making it difficult to handle fish without assistance
Solution Approach 1:
The patent transforms the fixed line length characteristic of traditional Tenkara fishing into a dynamic, adjustable system. The rod mechanism allows the line length to be changed on-demand by the angler, enabling adaptation to different fishing scenarios such as varying distances to fish or different fish sizes, while maintaining simplicity through direct manual operation.
3Length of moving object
If a longer line than the rod length is used in Tenkara fishing, then casting distance is improved, but it becomes very difficult to pull the fish in without walking back or having assistance
Solution Approach 1:
The hollow rod structure acts as an intermediary mechanism between the angler and the line. It provides a controlled pathway for the line to pass through, allowing the angler to efficiently retrieve long lines without needing to physically walk back or use assistance. The rod's internal structure facilitates smooth line flow during retrieval.
4Device complexity
If a traditional reel is used to control the line, then line management is achieved, but the device complexity and weight increase
Solution Approach 1:
The patent extracts the essential line control function from the complex reel assembly and implements it in a simplified manner directly within the rod structure. Only the minimum necessary components are retained to control line flow, eliminating unnecessary reel mechanisms while maintaining effective line management.
Solution Approach 2:
The rod structure is designed to perform multiple functions: it serves as the structural support, the line conduit, the line storage chamber, and the line control mechanism. This multi-functionality eliminates the need for a separate reel, reducing both device complexity and weight while maintaining line management capabilities.
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 solution reduces fatigue by eliminating the weight of the reel, allows for precise short to medium distance casting, and enables adjustable line lengths, facilitating solo fishing without assistance, reducing the risk of line and rod damage.
Implementation Method 1
a free line cast control and drag mechanism that applies pressure as needed to the line to control movement of the line through the rod body
Data Source
AI summary
A fishing rod including a rod body, a free line cast control and drag mechanism operatively connected to a proximal end of the rod body, and a line operatively threaded through the free line cast control and drag mechanism and running through a hollow passageway of the rod body and out a distal end. A method of fishing with the fishing rod by casting the line out of the distal end of the rod body onto a body of water, detecting that a fish is on the line, and pulling the line through the proximal end of the rod body and through the free line cast control and drag mechanism.


