Fishing Reel Washer Cut-and-Raised Torque Distribution
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Washers for fishing reels with small thicknesses are prone to deformation due to torque transmission from rotary shafts, compromising their structural integrity and accuracy.
Innovation Solution
A washer design featuring a washer body with a through hole and first and second cut-and-raised parts that extend in the opening direction, allowing for a larger contact area with the rotary shaft, thereby distributing torque effectively without deformation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Weight of moving object
If the washer is made with small thickness to reduce weight and enhance stamping accuracy, then weight is reduced and manufacturing precision is improved, but the inner wall surface becomes prone to deformation under torque
Solution Approach 1:
The invention applies local quality by creating cut-and-raised parts at specific locations on the washer's inner wall surface. These localized structural modifications concentrate strength where torque is transmitted, allowing the overall washer to remain thin while resisting deformation at critical contact points with the rotary shaft.
2Manufacturing precision
If the washer is made with small thickness to reduce weight and enhance stamping accuracy, then manufacturing precision is improved, but the inner wall surface becomes prone to deformation under torque
Solution Approach 1:
The cut-and-raised parts create localized structural reinforcements that maintain high manufacturing precision in the thin washer body while providing enhanced torque resistance at specific contact zones. The raised portions act as stiffening elements without requiring increased overall thickness.
3Weight of moving object
If the washer is made with small thickness, then weight is reduced, but the contact area with the rotary shaft becomes insufficient, causing deformation
Solution Approach 1:
The invention transitions from a two-dimensional thin washer surface to a three-dimensional structure by creating raised parts that extend outward. This dimensional change increases the contact area with the rotary shaft without increasing the washer's overall thickness, thereby maintaining low weight while improving torque distribution.
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 washer effectively receives torque from the rotary shaft without deformation, even when thinly formed, enhancing its durability and accuracy.
Implementation Method 1
The first cut-and-raised part is contacted to the rotary shaft. Therefore, compared to a washer not provided with the first cut-and-raised part, a washer according to the present description can be contacted to the rotary shaft over a larger area. As a result, even when thinly formed, a washer according to the present description can sufficiently receive a torque from the rotary shaft.
Data Source
AI summary
A washer for a fishing reel can be attached to a rotary shaft so as to be unitarily rotated therewith. The washer includes a washer body and a first cut-and-raised part. The washer body includes a through hole in a middle part thereof. The through hole is defined by an inner wall surface including a first flat surface. The first cut-and-raised part includes the first flat surface.