Universal Dock Fender System with Flexible Envelope
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Solution Overview
Problem
Existing systems fail to effectively protect docks and watercraft from damage due to the variability in dock and boat shapes, sizes, and configurations, with existing fenders being cumbersome to reposition and expensive to install.
Innovation Solution
A system utilizing a flexible sheet with embedded marine fenders that can be adapted to various dock and boat sizes by cutting to length and securing with fasteners, providing universal protection by positioning fenders to protrude outwardly for effective cushioning regardless of dock or boat shape.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If standard marine fenders are used and affixed to dock tying posts or cleats, then protection is provided, but the fenders are mispositioned relative to the boat causing reduced effectiveness
Solution Approach 1:
The fender system is made dynamically adjustable through the fabric envelope that can be cut to various lengths and configured to accommodate different boat sizes and dock types. This allows the fenders to be repositioned along the envelope to achieve optimal positioning for each specific docking scenario, resolving the contradiction between reliable protection and ease of positioning.
Solution Approach 2:
The system allows changing the physical parameters of the protection system by cutting the fabric envelope to different lengths and configuring fenders at various positions along it. This parameter adjustment enables the same basic system to adapt to different boat-fender-dock configurations, maintaining protection effectiveness while simplifying positioning.
2Reliability
If fenders are affixed to the boat, then protection is provided, but the fenders are mispositioned relative to the dock causing reduced effectiveness
Solution Approach 1:
The fabric envelope serves as an intermediary structure that connects the dock to the boat while holding the fenders in the correct position. This intermediary allows the fenders to be properly positioned relative to both the dock and the boat simultaneously, eliminating the positioning errors that occur when fenders are directly affixed to either the dock or the boat alone.
3Adaptability or versatility
If a universal protection system is designed to accommodate all dock and boat shapes and sizes, then adaptability is improved, but system complexity increases
Solution Approach 1:
The fabric envelope is designed as a universal component that can be cut to various lengths and configured for different dock and boat types. This single multi-functional component replaces the need for multiple specialized fender systems, achieving universality without proportionally increasing complexity.
Solution Approach 2:
The system is segmented into simple, interchangeable components: the fabric envelope and multiple standard fenders. This segmentation allows the system to be configured for different applications by simply arranging existing components rather than designing complex integrated systems for each scenario, reducing overall complexity while maintaining versatility.
4Reliability
If existing fender systems are used, then protection is provided, but they are expensive and complicated to install
Solution Approach 1:
The system merges the fabric envelope with standard marine fenders into a single integrated protection assembly. This combination allows the use of inexpensive, readily available fenders that are already proven effective, while the simple fabric envelope adds minimal cost and greatly simplifies installation by pre-positioning the fenders in the correct location.
Data Source
AI summary
A dock and boat protection system includes a flexible sheet, fasteners, and a plurality of colinearly aligned marine fenders. The sheet has an envelope portion sized to at-least-partially surround fenders when conformed there-around, and an edge portion extending from the envelope portion and configured to engage a dock, wherein the edge portion is secured to the dock by the fasteners.


