Interchangeable Fishing Jig Heads Without Line Disconnection

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

Existing fishing lures require disconnection from the fishing line to change weight, color, or shape, leading to bait waste and difficulty threading the line due to clogged eyelets.

Innovation Solution

A jig assembly with interchangeable jig heads, comprising a jig hook, collar, and coupler, allowing for quick changes in weight, color, and shape without disconnecting from the line, using a cylindrical collar and pliable tube to secure the jig head.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If the lure is disconnected from the fishing line to change weight, color, or shape, then the fishing line can be threaded through a new lure, but the bait is wasted and the process becomes time-consuming

Engineering Contradiction:

Improveability to change lure characteristicsVSAvoidbait waste

Core Design Contradiction:

Adaptability or versatilityVSLoss of substance

Solution Approach 1:

The lure is divided into separable components: a permanent eyelet portion that remains on the fishing line, and an interchangeable body portion containing the hook and lure characteristics. This segmentation allows the body portion to be changed without removing the eyelet portion and bait from the line.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The interchangeable body portion is designed to nest within or attach to the permanent eyelet portion. The coupler mechanism allows the body portion to be inserted into and secured by the eyelet portion, creating a nested structure that enables quick changes without losing the bait.

Inventive Principle:

Principle #7Nested doll (Nesting)

2Adaptability or versatility

If the lure is disconnected from the fishing line to change weight, color, or shape, then a new lure can be attached, but the process is time-consuming and reduces productivity

Engineering Contradiction:

Improveability to change lure characteristicsVSAvoidtime to change lures

Core Design Contradiction:

Adaptability or versatilityVSProductivity

Solution Approach 1:

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The coupling mechanism between the eyelet portion and body portion is designed to be dynamic and reversible. The coupler allows for quick insertion and removal of the body portion through simple motions, transforming the static, time-consuming process of untying and retying knots into a dynamic, rapid exchange process.

Inventive Principle:

Principle #15Dynamics

3Device complexity

If a traditional lure with a fixed eyelet is used, then the structure is simple, but the eyelet becomes clogged making it difficult to thread the fishing line

Engineering Contradiction:

Improvelure structure simplicityVSAvoidease of threading fishing line

Core Design Contradiction:

Device complexityVSEase of operation

Solution Approach 1:

The eyelet function is extracted from the body portion and placed in a separate, permanent eyelet portion that remains on the fishing line. This extraction allows the body portion to be changed without dealing with clogged eyelets, as the clean, permanent eyelet portion stays on the line and maintains easy line access.

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The permanent eyelet portion acts as an intermediary between the fishing line and the interchangeable body portions. It provides a consistent, accessible point for line attachment while allowing different body portions to be exchanged without affecting line threading capability.

Inventive Principle:

Principle #24Intermediary (Mediator)

4Reliability

If the jig head weight is changed to improve fishing success, then the center of mass can be optimized, but the hook must be removed from the line to change the jig head

Engineering Contradiction:

Improvefishing successVSAvoidease of changing jig head

Core Design Contradiction:

ReliabilityVSEase of operation

Solution Approach 1:

The jig assembly is segmented into a permanent eyelet portion and an interchangeable body portion containing the hook and jig head. This segmentation allows the jig head weight to be changed by simply exchanging body portions while the hook remains attached to the line through the permanent eyelet portion.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The permanent eyelet portion serves multiple functions: it provides a consistent attachment point for the fishing line, retains the bait, and enables the exchange of multiple different body portions with various hook and jig head configurations. This multi-functionality allows anglers to optimize for different fishing conditions without re-attaching the line.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Data Source

PatentUS12396446B1Interchangeable fishing jig head

Publication Date: 2025.08.26 CHRISTENSEN EVERETT

AI summary

A fishing jig having interchangeable jig heads that quickly interchanges various weighted jig heads without needing to disconnect the fishing jig hook from the fishing line. The jig head is aligned below a lengthwise axis of the hook and the eyelet of the hook is aligned above the lengthwise axis of the hook.