Fishing Reel Angle Variation Mechanism for Wrist Strain Reduction

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Solution Overview

Problem

Conventional fishing reels cause wrist strain and fatigue due to the perpendicular connection of the fishing wheel to the spool shaft, leading to excessive bending of the wrist during rotation, which can result in pain and discomfort.

Innovation Solution

The fishing reel incorporates an angle variation means, such as a bevel gear system or universal joint, to connect the fishing wheel to the spool shaft gearshift at a non-perpendicular angle, allowing the connection angle to vary between 20 to 30 degrees, reducing wrist strain and enabling comfortable fishing.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Device complexity

If the fishing wheel is connected perpendicular to the spool shaft gearshift, then the structure is simple and direct, but the user's wrist experiences excessive bending and strain during rotation

Engineering Contradiction:
Improveconnection structureVSAvoidwrist strain
Core Design Contradiction:
Device complexityVSEase of operation

Solution Approach 1:

An angle variation mechanism is introduced as an intermediary component between the fishing wheel and the spool shaft gearshift. This mediator allows the connection angle to be adjusted, enabling the fishing wheel to be operated at a more ergonomic angle while still effectively driving the spool, thus reducing wrist strain without compromising the direct drive capability

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The connection angle between the fishing wheel and spool shaft gearshift is made dynamically adjustable rather than fixed. The angle variation mechanism allows users to change the connection angle according to their operating position and comfort needs, transforming a static rigid connection into a dynamic adaptable one that reduces wrist strain

Inventive Principle:
Principle #15Dynamics

2Ease of operation

If the fishing wheel is connected at a variable angle to reduce wrist strain, then user comfort is improved, but the connection structure becomes more complex

Engineering Contradiction:
Improvewrist comfortVSAvoidconnection structure
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The angle variation mechanism introduces dynamic adjustability to the connection between the fishing wheel and spool shaft, allowing the connection angle to change based on user needs. This dynamic feature improves wrist comfort by enabling ergonomic positioning while maintaining effective power transmission to the spool

Inventive Principle:
Principle #15Dynamics

3Stability of the object's composition

If the fishing wheel is always in parallel with the fishing rod, then the structure is stable and straightforward, but the user cannot comfortably operate when posture changes

Engineering Contradiction:
Improvestructural stabilityVSAvoidposture adaptability
Core Design Contradiction:
Stability of the object's compositionVSAdaptability or versatility

Solution Approach 1:

The fixed parallel arrangement between the fishing wheel and fishing rod is transformed into a dynamic configuration through the angle variation mechanism. This allows the fishing wheel's orientation to adapt to different user postures and casting positions while maintaining stable power transmission, thereby improving posture adaptability without sacrificing structural stability

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The angle variation mechanism enables the fishing reel to function effectively in multiple user positions and postures. By allowing the connection angle to vary, the system becomes universal and adaptable to different fishing scenarios and user anatomies, rather than being limited to a single optimal position

Inventive Principle:
Principle #6Universality (Multi-functionality)

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

This configuration prevents wrist bending and pain, allowing for effortless rotation of the fishing wheel regardless of user posture, ensuring effective power transmission to the spool and increased versatility for both spinning and bait-cast reels, making it suitable for novice users.

Implementation Method 1

the angle variation means includes a bevel gear system

Methodology Applied
Scientific EffectBevel gear mechanism: Gear

Implementation Method 2

the angle variation means includes a universal joint or a constant velocity joint

Methodology Applied
Scientific EffectUniversal joint: Gimbal

Implementation Method 3

A fishing wheel body and a rotation shaft are screw-coupled to each other in the recessed portion

Methodology Applied
Scientific EffectScrew engagement: Screw

Data Source

PatentUS10172336B2Fishing reel
Publication Date: 2019.01.08 RYU SANG HOON
  • US10172336B2 patent drawing
  • US10172336B2 patent drawing
  • US10172336B2 patent drawing

AI summary

A fishing reel including: a main body mounted on a fishing rod; a spool for allowing a fishing line to be wound or unwound, the spool being installed on the main body so as to be rotatable; and a fishing wheel for rotating the spool, the fishing wheel being connected to a spool shaft gearshift which induces rotation of the spool. The fishing wheel is connected to the spool shaft gearshift via angle variation means, and a connection angle between the wheel and the gearshift varies using the angle variation means to reduce strain applied on a user's wrist while rotating the spool.