Fishing Lure Partition with Inclined Surface for Sinker Stability

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Solution Overview

Problem

Conventional lures with movable spherical sinkers face issues with displacement in the right-left and up-down directions, leading to detachment or shaking during swimming, and require multiple sinker moving spatial portions for different spherical sizes, increasing production costs.

Innovation Solution

Incorporating a partition with an inclined surface portion between the sinker moving spatial portion and the retainer, which has a circular hole, to securely retain the spherical sinker using magnetic force, preventing displacement in both directions and allowing for a single design to accommodate various spherical sizes.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If rails are provided to prevent displacement of the spherical sinker, then the spherical sinker is constrained in position, but the structure becomes more complex and production costs increase

Engineering Contradiction:

Improveposition stability of spherical sinkerVSAvoidstructure complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The invention extracts the displacement prevention function from the complex rail structure and concentrates it into a single partition wall with an inclined surface. This partition is provided at the front portion of the sinker moving spatial portion, separating the spherical sinker from the retainer and preventing right-left displacement without requiring multiple rails in different directions.

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The sinker moving spatial portion is segmented into a front portion and a rear portion by the partition. The partition creates a distinct space for the spherical sinker and another space for the retainer, allowing independent optimization of each component while preventing interaction that would cause displacement.

Inventive Principle:

Principle #1Segmentation

2Adaptability or versatility

If multiple sinker moving spatial portions are provided for different spherical sizes, then various spherical sinkers can be accommodated, but production costs increase

Engineering Contradiction:

Improvecompatibility with different spherical sinker sizesVSAvoidproduction cost

Core Design Contradiction:

Adaptability or versatilityVSEase of manufacture

Solution Approach 1:

The sinker moving spatial portion is designed with universal compatibility through the inclined surface of the partition. This single partition design can accommodate spherical sinkers of various sizes (e.g., 5mm to 15mm diameter) by adjusting the spherical sinker position along the anteroposterior direction, eliminating the need for multiple specialized spatial portions for different sinker sizes.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Solution Approach 2:

The spherical sinker is allowed to move dynamically along the anteroposterior direction of the sinker moving spatial portion. The inclined surface of the partition guides the spherical sinker to the appropriate position while maintaining adaptability to different sizes, transforming a static rigid structure into a dynamic adjustable system.

Inventive Principle:

Principle #15Dynamics

3Stability of the object's composition

If the spherical sinker is retained at the front portion, then the center of gravity is shifted forward for stable swimming, but the spherical sinker may detach or shake during swimming

Engineering Contradiction:

Improveswimming stabilityVSAvoidretention reliability of spherical sinker

Core Design Contradiction:

Stability of the object's compositionVSReliability

Solution Approach 1:

The partition acts as an intermediary structure between the spherical sinker and the retainer. It provides magnetic retention through the retainer while simultaneously preventing the spherical sinker from moving too far forward or detaching. The inclined surface of the partition mediates the interaction, guiding the spherical sinker to the correct position and preventing shaking during swimming.

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

The solution effectively prevents displacement of the spherical sinker, ensuring a stable swimming action and reducing production costs by eliminating the need for multiple sinker moving spatial portions for different sizes.

Implementation Method 1

a retainer provided at a front portion of the sinker moving spatial portion and can retain the spherical sinker due to magnetic force thereof

Methodology Applied

Scientific EffectMagnetic force: Magnetism

Data Source

PatentUS9635841B2Lure

Publication Date: 2017.05.02 DUEL

AI summary

A lure of the present invention includes a body, a sinker moving spatial portion provided inside the body and extending in an anteroposterior direction of the body, a spherical sinker accommodated in the sinker moving spatial portion to be movable along the sinker moving spatial portion in the anteroposterior direction of the body, and a retainer provided at a front side of the sinker moving spatial portion and can retain the spherical sinker due to magnetic force thereof. A partition is provided between the front portion of the sinker moving spatial portion and the retainer, and the partition has an inclined surface portion that is gradually reduced in thickness from the sinker moving spatial portion toward the retainer. The lure provides a shiftable center of gravity due to movement of a spherical sinker.