Fishing Rod Tip Composite Structure for Chipping Prevention
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional fishing rod tips made of fiber-reinforced resin materials are prone to chipping and breakage due to exposed end surfaces when tapered, leading to potential damage to the fishing line and reduced bending strength.
Innovation Solution
A fishing rod tip with a solid body made of continuously disposed reinforced fibers, coated with a covering layer of short fibers dispersed in a matrix resin, which enhances bending and torsional strength while preventing chipping and breakage by covering exposed fiber ends.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the tip is made of continuously disposed reinforced fibers and tapered, then bending strength is improved and flexibility is increased, but the exposed end surfaces of fibers cause chipping and breakage
Solution Approach 1:
The tip is constructed as a composite structure combining continuous reinforced fibers for bending strength with a covering layer containing short dispersed fibers for surface protection. This composite approach allows the continuous fibers to provide the primary structural strength while the covering layer with short fibers prevents chipping and breakage at the tapered surface, resolving the contradiction between strength and reliability.
2Ease of operation
If the tip is tapered by cutting, then the distal-end portion can be easily bent, but the reinforced fibers are cut and end surfaces are exposed leading to chipping
Solution Approach 1:
The covering layer is formed on the tapered surface before the tip is put into service, preliminarily protecting the exposed fiber ends from chipping and breakage. This preliminary protective action allows the tip to maintain its tapered shape for ease of bending while preventing the surface integrity issues that would otherwise occur from cutting the fibers.
3Reliability
If a covering layer is added to prevent chipping, then breakage is prevented, but the device complexity increases
Solution Approach 1:
The covering layer is applied locally only where needed - on the tapered surface of the tip where fiber ends are exposed to chipping and breakage risks. This localized application provides protection precisely where the vulnerability exists without adding unnecessary complexity to the entire rod structure, maintaining simplicity while improving reliability.
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 solution significantly improves the bending strength and prevents breakage of the fishing rod tip by covering exposed fiber ends and distributing short fibers anisotropically, ensuring the tip can be bent without chipping or fracturing, thus maintaining the integrity of the fishing line.
Implementation Method 1
the covering layer is made of a fiber-reinforced resin in which short fibers are dispersed in a matrix resin material
Implementation Method 2
short fibers are dispersed in a matrix resin material
Implementation Method 3
a solid tip made of a fiber-reinforced resin material in which reinforced fibers are continuously disposed along an axial direction
Implementation Method 4
the short fibers are dispersed and arranged anisotropically in the covering layer so that not only the bending strength but also a torsional strength of the tip can be enhanced
Data Source
AI summary
To provide a fishing rod having a tip whose bending strength is improved and breakage is prevented with unexposed end surfaces of reinforced fibers of the tip on a tapered surface thereof. A fishing rod according to the disclosure includes a solid tip made of a fiber-reinforced resin material in which reinforced fibers are continuously disposed along an axial direction, the tip is tapered toward a distal end. A covering layer made of a fiber-reinforced resin in which short fibers are dispersed in a matrix resin material is formed on the surface of the tip.