Fishing Line Threader with Elastic Stopper for Minimized Guides

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Solution Overview

Problem

Conventional fishing line threaders struggle to easily pass fishing lines through minimized fishing line guides with small diameters and narrow spacings, making it difficult for anglers to identify if the line has passed and requiring delicate finger operations.

Innovation Solution

A fishing line threader composed of a single metallic wire material with a pinching portion, elastic portion, and leading end portion, designed to fit around the fishing line and extend along the longitudinal direction, allowing smooth passage through guide rings in both directions without relying on visual identification.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Weight of moving object

If fishing line guides are minimized to reduce weight and improve fishing sensitivity, then fishing rod performance is improved, but it becomes very difficult to pass the fishing line through the guide ring

Engineering Contradiction:

Improvefishing rod weightVSAvoidease of passing fishing line

Core Design Contradiction:

Weight of moving objectVSEase of operation

Solution Approach 1:

A fishing line threader is introduced as an intermediary tool to assist in passing the fishing line through the minimized guide ring. The threader has a thin, flexible structure with a curved leading end that can easily penetrate the small aperture, and includes a stopper mechanism to prevent reverse passage, thereby solving the difficulty of operating with minimized guides.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Weight of moving object

If fishing line guides are minimized with small aperture and narrow spacing, then fishing rod performance is improved, but it becomes difficult for anglers to identify if the line has passed through

Engineering Contradiction:

Improvefishing line guide weightVSAvoidvisibility of line passage

Core Design Contradiction:

Weight of moving objectVSDifficulty of detecting and measuring

Solution Approach 1:

The fishing line threader serves as a mediator that provides tactile feedback through its stopper mechanism. When the threader encounters the guide ring, the stopper prevents reverse movement, giving the angler clear tactile confirmation that the line has successfully passed through, eliminating the need for visual identification.

Inventive Principle:

Principle #24Intermediary (Mediator)

3Device complexity

If conventional fishing line threader is used with minimized fishing line guides, then the threader structure is simple, but it cannot easily pass through the guide ring

Engineering Contradiction:

Improvethreader structure complexityVSAvoidease of passing through guide ring

Core Design Contradiction:

Device complexityVSEase of operation

Solution Approach 1:

Instead of trying to make the fishing line itself more complex to pass through the guides, the solution inverts the approach by using a simple threader tool with a specially designed curved leading end and stopper mechanism. The threader's simple yet strategically designed structure allows it to easily pass through the minimized guides while providing operational control.

Inventive Principle:

Principle #13The other way round (Inversion)

4Weight of moving object

If fishing line guides are minimized, then fishing rod weight is reduced, but delicate finger operations are required to pass the line

Engineering Contradiction:

Improvefishing rod weightVSAvoidfinger operation difficulty

Core Design Contradiction:

Weight of moving objectVSEase of operation

Solution Approach 1:

The fishing line threader acts as an intermediary tool that replaces the need for delicate finger operations. The threader can be easily held and manipulated by fingers, and its flexible structure with stopper mechanism automatically guides the line through the minimized guides, eliminating the need for precise manual dexterity.

Inventive Principle:

Principle #24Intermediary (Mediator)

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 easy and reliable passage of fishing lines through minimized guides, reducing the risk of entanglement and allowing for versatile holding methods, accommodating different angler preferences while maintaining a good holding property.

Implementation Method 1

a rear portion, which has a spring property and is integrally formed with the leading end portion in a bifurcated shape

Methodology Applied

Scientific EffectSpring property: Spring

Implementation Method 2

The first pinching portion and the second pinching portion are in contact with each other at least partially and form an annular shape so as to fit and support the fishing line therebetween

Methodology Applied

Scientific EffectFriction: Friction

Data Source

PatentUS11553702B2Fishing line threader

Publication Date: 2023.01.17 FUJI IND CO LTD

AI summary

A fishing line threader passes a fishing line through guide rings of fishing line guides installed in a fishing rod. The fishing line threader is composed of a single metallic wire material and has a fishing line pinching portion, an elastic portion and a leading end portion. First and second pinching portions of the fishing line pinching portion connect with each other at a first end portion and form an annular shape to fit and support the fishing line. The elastic portion forms a rhombus shape and has first and second elastic portions respectively extending from the first and second pinching portions. First and second leading end portions of the leading end portion extend respectively from the first and second elastic portions to a second end portion and are adjacent to each other. The first and second leading end portions are joined to each other by a joining portion.