Fishing Rod Rear Grip Base Material with Adjustable Inner Diameter
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Solution Overview
Problem
Existing methods for manufacturing fishing rod grips and reel seats require individual molding for each desired dimension and shape, leading to inefficiencies and inconsistencies in internal pressure molding processes.
Innovation Solution
A rear grip and reel seat base material with an inner diameter adjustment layer, comprising multiple fiber-reinforced resin layers oriented at specific angles, allows for easy expansion during internal pressure molding, enabling the formation of grips and seats that can accommodate various rod body dimensions without the need for multiple base materials, thereby stabilizing molding quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If individual molding is performed for each desired dimension and shape of grip and reel seat, then the molding quality can be customized, but the manufacturing complexity and time increase
Solution Approach 1:
The patent creates a universal base material structure with an inner diameter adjustment layer that can be used for multiple different grip and reel seat dimensions and shapes. The standardized base material can be adapted to various rod body specifications through the adjustment layer, eliminating the need for completely individual molding processes for each product variant.
Solution Approach 2:
The base material is segmented into distinct functional layers: a standardized main body layer and an adjustable inner diameter adjustment layer. This segmentation allows the main body to remain standardized while the adjustment layer is modified to achieve different final dimensions and shapes, reducing overall manufacturing complexity.
2Manufacturing precision
If multiple base materials are used for different dimensions, then the fit accuracy improves, but the inventory complexity and manufacturing cost increase
Solution Approach 1:
Instead of maintaining multiple specialized base materials for different dimensions, the patent develops a single universal base material that can serve multiple purposes. The inner diameter adjustment layer is modified to accommodate different rod body dimensions, allowing one base material type to replace what would otherwise require multiple different base material inventories.
Solution Approach 2:
The patent changes the inner diameter parameter of the base material through the adjustment layer without changing the fundamental base material structure. By adjusting the inner diameter of this specific layer, the same base material can be adapted to fit various rod body dimensions, eliminating the need to stock multiple base material variants.
3Manufacturing precision
If pressure is applied to the hollow portion during molding, then the tubular body expands to fit the mold cavity, but the fiber orientation control becomes difficult
Solution Approach 1:
The patent performs preliminary action by pre-orienting the fibers in the inner diameter adjustment layer at specific angles (20-70 degrees relative to the circumferential direction) before the internal pressure molding process. This preliminary fiber orientation ensures that when pressure is applied and the tube expands, the fibers maintain controlled orientation and the structural integrity is preserved, achieving both dimensional accuracy and fiber stability.
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 solution allows for the efficient molding of grips and seats that can fit various rod body dimensions, reducing the number of stacked fibers and ensuring consistent quality by utilizing a base material where fibers expand radially, thus simplifying the molding process and improving physical properties.
Implementation Method 1
a base material in which fibers of the inner diameter adjustment layer in a circumferential direction easily expand (extend) outward in a radial direction during internal pressure molding
Implementation Method 2
a third step of thermally molding the stacked body by pressing the stacked body against a surface of the cavity while applying a pressure to the hollow portion to expand the stacked body in the cavity
Data Source
AI summary
A rear grip base material according to an embodiment of the present invention comprises a main body portion, and a tubular fitting adhesion portion which is formed at one end or both ends of the main body portion and to which a rod body is fitted and adhered, and that is used for forming a rear grip of a fishing rod by internal pressure molding. The fitting adhesion portion comprises an innermost layer, an inner diameter adjustment layer, a main body layer, and an outermost layer, and each layer is a fiber-reinforced resin layer.