Fishing Rod Guide Ring Groove for Stronger Frame Bonding
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional fishing rod guides face challenges in achieving a strong attachment force between the guide frame and ring due to limited contact area and difficulty in positioning, leading to potential cracking and weight inefficiencies.
Innovation Solution
The guide design features a guide ring with an outer circumferential groove and a frame with opposing surfaces of different shapes, allowing for increased contact area and easy alignment, filled with adhesive to enhance attachment force and reduce weight.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a flat surface is used for contact between the frame and guide ring, then the contact area is limited, but the positioning is difficult and attachment force is insufficient
Solution Approach 1:
The patent applies curvature by forming an outer circumferential groove with a curved surface on the guide ring that opposes a curved surface on the frame. This curved contact interface increases the contact area between the frame and guide ring compared to a flat surface, thereby improving attachment force while maintaining positioning capability through the geometric interlocking of the curved surfaces.
Solution Approach 2:
The patent transitions from a two-dimensional flat contact surface to a three-dimensional curved contact interface by forming the outer circumferential groove. This dimensional change allows the contact area to extend along the curved surface, effectively increasing the total contact area between the frame and guide ring without increasing the overall size of the components.
2Strength
If the frame is made thicker to follow the curved peripheral groove, then the contact area increases, but the weight increases
Solution Approach 1:
The patent applies local quality by concentrating the increased contact area specifically at the outer circumferential groove interface between the frame and guide ring, rather than uniformly thickening the entire frame. This allows the frame to maintain its original thickness and weight while achieving enhanced attachment force through the localized curved contact surface.
Solution Approach 2:
By using a curved surface in the outer circumferential groove, the patent achieves increased contact area and improved attachment force without requiring the frame to be thicker. The curved geometry allows for efficient load distribution across the contact interface, maintaining structural integrity while minimizing weight.
3Strength
If a curved peripheral groove is used, then the contact area increases, but the space for adhesive is insufficient
Solution Approach 1:
The patent applies partial action by providing the outer circumferential groove only at the specific location where the frame contacts the guide ring, rather than forming a groove around the entire circumference. This localized groove configuration increases the contact area and provides sufficient space for adhesive application at the critical bonding interface, while avoiding unnecessary material removal that would reduce adhesive space elsewhere.
Data Source
AI summary
A guide for a fishing rod includes a rod body, a guide ring configured to have a fishing line inserted therethrough, and a guide frame fixed to the rod body, extending outward in a radial direction of the rod, and holding the guide ring. The guide ring has an outer circumferential groove along an outer circumferential edge positioned on an outer side of a central axis of the guide ring in the radial direction of the rod. The guide frame further has a frame including a ring-shaped wire material holding the guide ring, a supporting leg portion fixed to the rod body and connecting to and supporting the frame, and a first opposing surface of the outer circumferential groove opposing at least a portion of the frame, and a second opposing surface of the frame opposing the first opposing surface, the first and second opposing surfaces having different shapes.