Fishing Reel Variable Brake Axial Radial Adjustment
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional fishing reels with magnetic brakes face limitations in adjusting braking force due to narrow range adjustments, which can lead to backlash and reduced casting distance, and require larger reel sizes to accommodate increased adjustment range.
Innovation Solution
A fishing reel design featuring a variable brake displaceable in the axial direction of the spool and magnets movable perpendicular to the spool axis, utilizing a dial cam and control dial to adjust the braking force, combining centrifugal, magnetic, and inertia brakes for customizable braking according to user preference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the holder is moved farther to increase the range in which the braking force is adjusted, then the adjustment range of braking force is improved, but the size of the body of the fishing reel increases
Solution Approach 1:
The patent changes the adjustment dimension from axial direction to radial direction. Instead of moving the holder axially to adjust brake distance, the holder is positioned radially and adjusted perpendicular to the spool axis, enabling a larger adjustment range without increasing the axial length of the reel body.
Solution Approach 2:
The patent introduces a movable holder that can be dynamically positioned in the radial direction, allowing the brake distance to be adjusted flexibly. The holder can move between different radial positions to provide variable braking force, creating a dynamic adjustment mechanism that adapts to different fishing conditions.
2Reliability
If a friction brake is used to prevent backlash, then the braking force is sufficient, but the pad wears out over time
Solution Approach 1:
The patent replaces the friction-based mechanical brake with a magnetic brake system. Magnets are positioned radially to generate magnetic attraction force that acts on the spool, providing braking force without physical contact. This eliminates pad wear while maintaining sufficient braking force to prevent backlash.
Solution Approach 2:
The patent introduces a magnetic field as an intermediary between the brake mechanism and the spool. The magnets create a magnetic field that exerts force on the spool without direct mechanical contact, serving as a non-contact intermediary that provides braking force while avoiding the wear problem of friction brakes.
3Force
If the magnetic brake uses a ring-type plate with magnets arranged in a circle, then the braking force is generated effectively, but the adjustment range of braking force is narrow
Solution Approach 1:
The patent repositions the magnets from a circular arrangement in the axial direction to a radial arrangement perpendicular to the spool axis. This dimensional change allows the magnets to be adjusted radially, providing a wider range of braking force adjustment while maintaining effective braking through magnetic attraction.
Solution Approach 2:
The patent divides the magnetic brake into separate magnet components that can be independently positioned on the holder. This segmentation allows flexible adjustment of the magnetic field strength and position, enabling a broader range of braking force control compared to a fixed circular arrangement.
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
Enables precise adjustment of braking force to prevent backlash and reduce casting distance, while maintaining a compact reel size, allowing compatibility with both left and right-handed handles.
Implementation Method 1
the variable brake is applied to the spool so that the distance between the variable brake and the magnets may automatically be varied due to centrifugal force depending on the rotating speed of the spool
Implementation Method 2
The magnetic brake uses the attraction of a plurality of magnets provided on a reel body to apply the magnetic attraction to a rotating spool, thereby slowing down the rotation of the spool
Implementation Method 3
the variable brake is coupled to one end of the shaft to be movable forwards and backwards in an axial direction of the spool and is elastically supported toward the spool
Data Source
AI summary
Provided is a fishing reel. A shaft extends therethrough the spool to be axially mounted on a reel body, and a fishing line is wound on the spool. A variable brake includes a facing portion provided in a circumferential direction of the spool, and is coupled to one end of the shaft to be movable forwards and backwards in an axial direction of the spool and is elastically supported toward the spool. Magnet holders are provided in a circumferential direction of the facing portion, coupled in a direction of an inner or outer circumferential surface of the facing portion to be movable forwards and backwards in a direction perpendicular to the axial direction of the spool, and include magnets mounted to form opposing surfaces with respect to the facing portion. A braking force control means for moving the magnet holders forwards and backwards.