Fly Reel Drag System Segmentation and Inversion
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Solution Overview
Problem
Existing fly reels have complex configurations that hinder easy attachment and detachment of the spool from the frame and conversion of the drag system, leading to reduced productivity and increased production costs, with complications in converting the direction of the oneway bearing and potential for part loss during assembly and exposure to wetness.
Innovation Solution
A fly reel design featuring a center shaft with separable parts, a drag system with a drag knob, drag disk, braking means, drag disk bush, oneway bearing, and drag cover, allowing for easy conversion of the oneway bearing direction without losing other parts, and a simplified configuration for improved drag control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If traditional fly reel design with integrated drag system is used, then functional completeness is achieved, but device complexity increases and productivity decreases
Solution Approach 1:
The fly reel is divided into separate functional modules: the frame with hub, the spool assembly, and the drag system with center shaft. These modules can be manufactured independently and assembled together, simplifying the manufacturing process and improving productivity while maintaining complete functionality.
2Adaptability or versatility
If oneway bearing or ratchet gear is built-in for direction conversion, then dragging direction conversion is enabled, but ease of operation deteriorates due to complicated dismantling and assembling process
Solution Approach 1:
Instead of designing a complex mechanism to convert the drag direction, the patent uses a simple oneway bearing that naturally permits rotation in one direction while restraining the other. This inverts the approach from active conversion mechanisms to passive directional control, greatly simplifying operation.
3Adaptability or versatility
If oneway bearing conversion process is implemented, then drag direction can be changed, but reliability decreases due to potential part loss and rusting from wetness penetration
Solution Approach 1:
The drag system is pre-configured with the oneway bearing in a sealed drag cover assembly. The drag disk bush is preliminarily positioned with the oneway bearing before final assembly, ensuring that no small parts like washers or snap rings are exposed during conversion. This preliminary arrangement prevents part loss and protects against wetness penetration that could cause rusting.
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 convenient attachment and detachment of the spool, enhances drag control accuracy, reduces production costs, and allows for easy conversion of the oneway bearing direction without part loss, thereby improving overall productivity and reducing complexity.
Implementation Method 1
a oneway bearing that is inserted at periphery of said drag disk bush, for permitting one directional rotation but for restraining the other directional rotation
Implementation Method 2
a braking means for restraining said drag disk from rotating on said center shaft in accordance with transferred amount of said drag knob moved to axial direction of said center shaft
Data Source
AI summary
This invention relates to a fly reel, of which the drag system installed in the frame thereof comprises: a drag knob that is connected rotational to one side of periphery of the center shaft that is connected fixed to hub of frame; a drag disk that is spaced-apart from said drag knob and gets inserted rotational to periphery of said center shaft; a braking means for restraining said drag disk from rotating on said center shaft in accordance with transferred amount of said drag knob moved to axial direction of said center shaft; a drag disk bush that is inserted at said drag disk for being rotated together with said drag disk as said drag disk rotates, the drag disk bush having said center shaft inserted therein; a oneway bearing that is inserted at periphery of said drag disk bush, for permitting one directional rotation but for restraining the other directional rotation; and a drag cover that is inserted rotational at periphery of said center shaft so as to be rotated by regulated rotation of said spool, for enabling said oneway bearing to rotate together as said spool rotates, thereby overall configuration can be made efficient and simple; and set direction of oneway bearing can be converted easily if necessary.