Universal Fin Box Wedge Mechanism for Interoperable Attachment
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Solution Overview
Problem
Existing surfboard fin fixing systems face issues such as complexity, lack of mechanical strength, requirement for tools, and limited interoperability between different systems, leading to difficulties in securely attaching fins without causing structural weaknesses or requiring extensive force.
Innovation Solution
A fin fixing system that uses a wedge mechanism and adjustable screws to create a compatible channel for both FCS and Futures fins, allowing for easy insertion and retention without additional accessories, and incorporates a latch mechanism with resilient bias for secure attachment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If traditional fin fixing systems use mechanical arrangements with tabs and slots, then fins can be attached to surfboards, but the systems suffer from complexity and lack of interoperability between different brands
Solution Approach 1:
The fin box is designed with a universal slot configuration that can accommodate fins from different brands (FCS and Futures) by using a standardized slot geometry and positioning system. The slot dimensions and orientation are optimized to work with multiple fin tab designs, enabling one fin box to serve multiple functions and兼容 different fin systems without requiring brand-specific adapters or modifications.
2Strength
If fin fixing systems use permanently fixed fin boxes, then structural strength is improved, but the requirement for tools and complexity increases
Solution Approach 1:
The fin fixing system transitions from a static, permanently fixed fin box to a dynamic system where the fin can be easily inserted and removed. The slot is designed with tapered edges and appropriate clearance to allow the fin tab to be inserted by hand without tools, while the fin box remains permanently fixed in the surfboard to maintain structural strength. The dynamic aspect is the ease of fin attachment and detachment while the fin box itself remains fixed.
3Ease of operation
If fin tabs are tapered to facilitate insertion, then ease of operation is improved, but mechanical strength may be compromised
Solution Approach 1:
The fin tab is designed with localized tapering only at the insertion end (the leading edge of the tab) to facilitate easy insertion into the slot. The majority of the tab structure maintains its full thickness and strength characteristics. This local quality change allows the tab to be easily inserted while preserving the mechanical strength needed for withstanding surf forces. The taper angle is optimized to be gentle enough for hand insertion but sufficient to guide the tab into proper alignment with the slot.
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
Enables secure attachment of fins with minimal force, reduces the need for tools, and provides compatibility with multiple fin brands, enhancing the structural integrity and ease of use of surfboard fin systems.
Implementation Method 1
incorporates a latch mechanism with resilient bias for secure attachment
Data Source
AI summary
This invention is directed toward a fin box capable of accepting either a Futures® or an FCS® fin without the need for any additional products being added to either the fins or the fin box. The box has an internally-adjustable wedge that can force the bottom of a fin into an indent, thereby giving it a cant or angle. The box also has channels for both FCS® and Futures® fins, such that a user can easily exchange either brand of fin without adding or subtracting items from the fins or fin boxes. Another embodiment of the invention provides a fin base with a wedge angle that compresses an underlying wedge, thereby “wedging” the fin in the fin box. A further embodiment has a button on the fin that compresses a springy material as it passes over a fin box lip, thereby removably securing the fin in the fin box.