Sliding Surfboard Fin with Translucent Locking Mechanism
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Solution Overview
Problem
Surfboard fin systems are difficult to change, as removing and replacing removable fins is time-consuming and cumbersome, leading to riders often sticking with the same fin system due to the complexity of the process.
Innovation Solution
A sliding fin system comprising a base with a planar tab, a large fin piece, and a small translucent fin piece that can be slid and locked into various positions relative to the base, allowing on-the-fly adjustments without leaving the water, using a screw or locking mechanism for secure placement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If removable fins are used to enable fin changes, then adaptability is improved, but device complexity and time consumption increase
Solution Approach 1:
The fin is divided into multiple segments that can be independently adjusted. The fin includes a base plate with a first fin piece and a second fin piece that can be adjusted relative to each other, allowing the rider to change fin configuration without removing the entire fin system from the surfboard.
Solution Approach 2:
The fin system transitions from a static, fixed configuration to a dynamic, adjustable system. The fin pieces can be moved and locked into different positions along the base plate, enabling real-time adjustment of fin shape and orientation while surfing without leaving the water.
2Adaptability or versatility
If removable fins are used to enable fin changes, then adaptability is improved, but time consumption increases
Solution Approach 1:
The fin pieces are pre-positioned on the base plate with indication marks that show the available adjustment positions. The rider can quickly adjust the fin by moving the fin pieces to predetermined positions and locking them, eliminating the need for time-consuming removal and replacement operations.
Solution Approach 2:
The fin adjustment system is designed to be self-adjusting while the rider is surfing. The fin pieces can be moved and locked into place without requiring external assistance or complex tools, allowing the rider to independently change fin configuration at any time during the surf session.
3Device complexity
If fixed fin systems are used, then device complexity is reduced, but adaptability deteriorates
Solution Approach 1:
The fin is segmented into adjustable pieces that can be repositioned along the base plate. This segmentation allows the fin to maintain a simple overall structure while enabling multiple configuration options through the movement and locking of individual fin pieces at different positions.
Solution Approach 2:
The base plate serves multiple functions: it provides the mounting interface for the fin, acts as the adjustment mechanism, and serves as the locking structure. The indication marks on the base plate provide both positioning guidance and locking references, eliminating the need for separate adjustment and locking mechanisms.
Data Source
AI summary
A sliding fin for a surfboard includes a base having a planar tab with an upper flange, a large fin piece having a first indentation, and a small fin piece for mating face-to-face with the large fin piece. The second fin piece has a second indentation that forms a channel that has a cross-sectional shape corresponding to a cross-sectional shape of the planar tab and upper flange, the channel being longer than the width of the planar tab, the small fin piece being translucent to enable the planar tab in the channel to be seen, the large and small fin pieces being slidable relative to the base on the planar tab.