Fishing Reel Line Guide With Switchable Narrow And Wide Apertures
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Solution Overview
Problem
Conventional fishing reels experience damage to the fishing line due to friction when drawn out against the drag force, and this can lead to reduced casting distance and increased load on the level wind device, affecting engagement, sensitivity, and operability.
Innovation Solution
A fishing reel design featuring a fishing line guide with a narrow guide portion for winding and a wide opening for releasing, along with a switch mechanism that changes the guide's attitude when drawing out against the drag force, reducing friction and load on the level wind device.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the fishing line guide maintains a fixed narrow groove structure for uniform winding, then the winding precision is improved, but the fishing line suffers damage due to friction when drawn out against drag force
Solution Approach 1:
The fishing line guide is made movable rather than fixed, allowing it to switch between a narrow groove configuration for uniform winding and a wide opening configuration for reduced friction during line retrieval. This dynamic adaptation resolves the contradiction by changing the guide's geometry based on operational requirements.
Solution Approach 2:
The guide's geometric parameters (width, shape) are changed between two states: a narrow groove for precise winding and a wide opening for minimal friction. This parameter transformation allows the system to optimize for either winding precision or line protection depending on the operational phase.
2Manufacturing precision
If the fishing line guide remains stationary with a narrow groove, then the winding alignment is improved, but the casting distance is reduced due to resistive force
Solution Approach 1:
The guide transitions from a stationary narrow groove to a movable structure with switching capability between narrow and wide configurations. During casting, the wide opening reduces resistive force for longer casting distance, while during winding, the narrow groove provides alignment precision.
Solution Approach 2:
The guide alternates between two geometric states periodically: wide opening during casting/retrieval phases to minimize resistance, and narrow groove during winding phases to maximize alignment. This periodic transformation resolves the contradiction between casting distance and winding precision.
3Device complexity
If the fishing line guide is fixed in position, then the structural simplicity is maintained, but the level wind device experiences excessive load causing potential failure
Solution Approach 1:
The guide is made dynamically adjustable between fixed narrow and movable wide configurations. This allows the system to distribute loads more effectively by reducing friction during high-load retrieval operations, thereby protecting the level wind device while maintaining relatively simple overall structure.
Solution Approach 2:
The guide's geometric parameters are transformed between narrow and wide states to modulate the load on the level wind device. The wide opening configuration reduces frictional resistance during retrieval, preventing excessive load accumulation that could lead to device failure.
4Manufacturing precision
If the fishing line guide uses a narrow groove for all operations, then the winding precision is maintained, but the drag force variations affect engagement and sensitivity
Solution Approach 1:
The guide dynamically switches between narrow groove and wide opening configurations based on operational phase. During winding, the narrow groove ensures precision; during retrieval and engagement, the wide opening minimizes drag variations, improving sensitivity and operability.
Solution Approach 2:
The guide's geometric parameters are changed between narrow and wide states to optimize different operational requirements. The narrow configuration maintains winding precision while the wide configuration reduces drag force variations that would otherwise affect engagement sensitivity.
Data Source
AI summary
Provided is a fishing reel in which damage of a fishing line at the time of drawing out of the fishing line against a drag force can be prevented, and moreover a load on a level wind device can be reduced. Consequently it is possible to improve engagement and sensitivity of the fishing line, and operability of the fishing reel. More specifically, the fishing reel includes a level wind device causing a fishing line guide to reciprocate in a left-right direction to guide a fishing line to the spool, and a drag device imparting a drag force on the fishing line. The fishing line guide includes a narrow guide portion and a wide opening, the fishing line is situated in the narrow guide portion when the fishing line is wound around the spool, and situated in the wide opening when the fishing line is released from the spool.