Magnetic Belly Hook Retainer for Fishing Lure Body Protection

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Solution Overview

Problem

Fishing lures suffer damage from the flexible linkage of belly hooks, which pivot and slash the lure body at high trolling speeds, leading to material degradation and reduced effectiveness.

Innovation Solution

A fishing lure design incorporating a magnetic holder that releasably retains the belly hook in a stinger position, using a diametrically magnetized channel to securely position the hook's shank, ensuring it points forward and downward for better hooking efficiency while maintaining motion through the water.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a flexible linkage is used to attach the belly hook to the lure body, then the hook can move freely to hook fish, but the hook point slashes and damages the lure body at high trolling speeds

Engineering Contradiction:

Improvehook movement freedomVSAvoidlure body damage

Core Design Contradiction:

Adaptability or versatilityVSObject-affected harmful factors

Solution Approach 1:

The harmful flexible linkage is removed from the system. Instead, a rigid rod connects the hook to the lure body, eliminating the slashing action while maintaining hook functionality through a different mechanism (magnetic retention in stinger position).

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

A rigid rod serves as an intermediary element between the hook and lure body, replacing the flexible linkage. This rod transmits motion differently, preventing direct contact between the hook point and lure body while still allowing hook deployment.

Inventive Principle:

Principle #24Intermediary (Mediator)

2Object-affected harmful factors

If butcher string or rubber band is used to fix the belly hook to the lure belly, then hook-induced damage is prevented, but the motion of the lure through water is degraded

Engineering Contradiction:

Improvelure body protectionVSAvoidlure motion through water

Core Design Contradiction:

Object-affected harmful factorsVSSpeed

Solution Approach 1:

The mechanical fastening methods (butcher string, rubber bands) are replaced with a magnetic field-based retention system. The magnetically retained hook in stinger position prevents damage without the drag and motion degradation caused by string or band fastening methods.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

3Adaptability or versatility

If the hook is allowed to pivot in all directions, then hooking capability is maximized, but the hook point continuously contacts and damages the lure body

Engineering Contradiction:

Improvehook pivoting capabilityVSAvoidlure durability

Core Design Contradiction:

Adaptability or versatilityVSReliability

Solution Approach 1:

The hook's movement freedom is segmented into controlled degrees of freedom. The rigid rod with magnetic retention allows the hook to maintain a specific stinger position orientation while still enabling hooking action, separating the functions of positioning and hooking.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The hook's orientation parameters are changed from free-pivoting to a fixed stinger position. This parameter change (from variable orientation to fixed forward-downward angle) prevents contact with the lure body while maintaining effectiveness for hooking striking fish.

Inventive Principle:

Principle #35Parameter changes

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 magnetic holder effectively prevents hook-induced damage to the lure body, enhances hooking efficiency by maintaining the hook's optimal position, and allows for smooth water motion without degrading the lure's movement.

Implementation Method 1

a magnetic holder disposed in the cavity and assembled relative thereto to provide a channel of diametrically magnetized configuration

Methodology Applied

Scientific EffectMagnetic force: Magnetism

Data Source

PatentEP3469893B1Fishing lure with magnetic holder to releasably retain belly hook in stinger position

Publication Date: 2024.02.21 TORIS GEORGIOS GEORJ

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AI summary

A fishing lure (100) includes a solid body (102) having a front head portion (120), a rear tail portion (122), a top back portion (124) and a bottom belly portion (126). The fishing lure also includes a cavity (106) recessed within the solid body and having a bottom opening (108) at a location extending between and intermediately of the bottom belly portion and rear tail portion. The fishing lure further includes a magnetic holder (104) disposed in the cavity and assembled relative thereto to provide a channel (110) of diametrically magnetized configuration for receiving and releasably retaining a shank portion (112) of a metal hook (114) coupled at an end to the bottom belly portion and extending within the channel so as to displace a point on an opposite end of the metal hook downwardly and forwardly away from the cavity and thereby in a stinger position relative to the solid body.