Angled Fishing Line Guide with Segmented Through Holes
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Solution Overview
Problem
Conventional fishing reels face issues with fishing lines getting caught on the guide when wound or released due to resistive forces and knot entanglement, limiting casting distance and winding efficiency.
Innovation Solution
A fishing reel with a fishing line guide featuring a first through hole for winding and a second wider through hole for knot guidance, where the front surface of the first portion is angled to the rear, allowing knots to pass through the second hole and preventing line entanglement, and the rear surface is angled to the front to facilitate line release.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the insertion hole in the fishing line guide is made narrow to guide the fishing line orderly, then the line winding orderliness is improved, but the fishing line gets caught when knotted
Solution Approach 1:
The insertion hole is segmented into two distinct portions: a first portion with a narrow width for orderly line guidance during winding, and a second portion with a wider width to accommodate knots. This segmentation allows each portion to serve its specific function without compromising the other
Solution Approach 2:
The first portion of the insertion hole acts as an intermediary element between the fishing line and the second portion. It guides the line orderly during winding while the angled front surface serves as a transition zone that directs knots toward the wider second portion, preventing entanglement
2Ease of manufacture
If the fishing line guide has a uniform hole width for guiding the line, then the manufacturing is simple, but the line gets caught on the guide during winding
Solution Approach 1:
Different portions of the insertion hole have different local qualities (widths) optimized for different functions. The first portion has a narrow width with an angled front surface for guiding, while the second portion has a wider width for knot passage, with each portion's properties tailored to its specific role
3Stability of the object's composition
If the narrow portion of the insertion hole has width slightly larger than line diameter to prevent rough movement, then the line winding orderliness is improved, but knots get caught on the narrow portion
Solution Approach 1:
The insertion hole is divided into two segments with different widths: the first segment (narrow portion) is optimized for preventing rough line movement during winding, while the second segment (wider portion) is optimized for accommodating knots, eliminating the harmful effect of knot entanglement
Solution Approach 2:
The angled front surface of the first portion, which could potentially cause knots to catch, is instead designed to actively guide knots toward the wider second portion. The potential harm of knot interaction with the narrow portion is converted into a beneficial guiding mechanism that prevents entanglement
Data Source
AI summary
A fishing reel according to an embodiment includes a spool rotatably supported between a left side plate and a right side plate of a reel body, and a fishing line guide having a first portion and a second portion. The first portion has a first through hole, the second portion has a second through hole, the first through hole guides a fishing line to be wound on the spool, and the second through hole has a width in a left-right direction larger than the first through hole and being continuous with the first through hole. A front surface of the first portion is angled to a rear side with respect to a perpendicular line extended from a center of a rotational axis of the spool to an extending direction of the fishing line.