Fishing Lure Wire Buffer Structure to Prevent Body Splitting

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Solution Overview

Problem

Existing fishing lures are prone to splitting at the bonding surfaces due to the direct transmission of external forces from the hook eye to the body, leading to potential damage and instability.

Innovation Solution

A lure design featuring a hollow body with a wire sandwiched between first and second bodies via a buffer member, allowing the wire to move relative to the buffer member and dispersing external forces, preventing direct pressure on the body.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If the wire frame including the hook eye is arranged between the first body and the second body to allow easy assembly, then the ease of manufacture is improved, but the body bonding surface is vulnerable to splitting when external force is applied

Engineering Contradiction:
Improveease of assemblyVSAvoidbonding surface strength
Core Design Contradiction:
Ease of manufactureVSStrength

Solution Approach 1:

A buffer member is introduced as an intermediary element between the wire frame (including hook eye) and the body bonding surface. This buffer member absorbs and distributes the external force applied to the hook eye, preventing direct transmission of stress to the bonding surface between the first and second bodies, thereby preventing splitting while maintaining the structural arrangement.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The buffer member is pre-installed between the wire frame and the body bonding surface to provide cushioning protection before any external force is applied. This preventive measure ensures that when external force acts on the hook eye during fishing, the bonding surface is already protected from direct stress concentration that would cause splitting.

Inventive Principle:
Principle #11Beforehand cushioning (Prior cushioning)

2Stability of the object's composition

If the hook eye is fitted inside a receiving groove formed on the bonding surface to secure positioning, then the stability of the object's composition is improved, but the bonding surface becomes vulnerable to tearing when external force is applied

Engineering Contradiction:
Improvehook eye positioning stabilityVSAvoidbonding surface strength
Core Design Contradiction:
Stability of the object's compositionVSStrength

Solution Approach 1:

The buffer member serves as a mediator between the hook eye (positioned in the receiving groove) and the bonding surface. It maintains the stable positioning of the hook eye within the groove while simultaneously protecting the bonding surface from the tearing forces that would otherwise be directly transmitted when external force is applied during fishing.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The buffer member is pre-positioned in the receiving groove alongside the hook eye to provide cushioning protection before external forces are applied. This ensures that when fishing forces act on the hook eye, the bonding surface is already protected from direct stress, preventing tearing while maintaining secure hook eye positioning.

Inventive Principle:
Principle #11Beforehand cushioning (Prior cushioning)

3Reliability

If the wire is fixed rigidly to the body to prevent movement, then the reliability is improved, but the external force from fish strike is directly transmitted to the body causing potential damage

Engineering Contradiction:
Improvewire positioning reliabilityVSAvoidexternal force transmission
Core Design Contradiction:
ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The buffer member acts as an intermediary between the wire and the body, allowing the wire to be securely positioned relative to the body while preventing direct transmission of harmful external forces. The buffer member absorbs and distributes strike forces, protecting the body from damage while maintaining reliable wire positioning for proper lure operation.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The buffer member is pre-installed between the wire and the body to provide cushioning protection before any external forces are applied during fishing. This ensures that when a fish strikes the lure, the buffer member is already in place to absorb and distribute the impact forces, preventing direct transmission to the body while maintaining wire positioning reliability.

Inventive Principle:
Principle #11Beforehand cushioning (Prior cushioning)

Data Source

PatentUS12543717B2Lure
Publication Date: 2026.02.10 SHIMANO INC
  • US12543717B2 patent drawing
  • US12543717B2 patent drawing
  • US12543717B2 patent drawing

AI summary

A lure for fishing includes a hollow body including a first body having a first bonding surface and a second body having a second bonding surface bonded to the first bonding surface, a wire having an eye to which a line or a hook is configured to be connected, and integrally incorporated into the body, and a buffer member between the body and the wire. The wire is sandwiched between the first body and the second body with the buffer member interposed therebetween such that the eye is exposed to outside of the body, and is configured to move relative to the buffer member. The buffer member is in contact with both the first body and the second body.