Watercraft Safety Flag With Variable Stiffening Element
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Solution Overview
Problem
Kayaks and other small watercraft are often obscured by waves or ocean swell, posing a safety risk as they may not be visible to high-speed motorcraft in time for evasive action.
Innovation Solution
A watercraft safety flag assembly comprising a flexible planar visibility-enhancing element with a rigid stiffening element and a header element, designed to increase visibility by maintaining the flag's extended position and visibility in various wind conditions, using materials resistant to ultraviolet light and the marine environment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If a traditional flag is used on a kayak, then visibility is improved, but the flag collapses in light wind conditions reducing visibility
Solution Approach 1:
The patent applies a flexible planar visibility-enhancing element that can be a thin film or fabric material. This flexible element provides visibility enhancement while accommodating light wind conditions without requiring rigid structural support, resolving the contradiction between maintaining extended position and using flexible materials for visibility.
Solution Approach 2:
The patent combines flexible visibility-enhancing material with rigid stabilizing elements to create a composite structure. This composite approach allows the flag to maintain its extended position for visibility while the rigid components provide structural stability in light wind conditions.
2Stability of the object's composition
If a rigid flag structure is used, then the flag maintains extended position, but visibility is reduced due to lack of flexibility and wind response
Solution Approach 1:
The patent prioritizes flexible visibility-enhancing elements over rigid structures. The flexible material can respond to wind conditions while maintaining sufficient extended position through alternative stabilization mechanisms, ensuring both visibility and appropriate wind response.
Solution Approach 2:
The patent changes the physical parameters of the flag structure by using flexible materials with specific mechanical properties that allow extension maintenance without full rigidity. This parameter change enables the flag to maintain position while retaining flexibility for visibility enhancement.
3Illumination intensity
If a large flag is used to improve visibility, then visibility is enhanced, but the flag becomes difficult to attach securely to the watercraft
Solution Approach 1:
The patent divides the flag assembly into separate components including the visibility-enhancing element, stabilizing elements, and attachment mechanisms. This segmentation allows the large flag to be constructed from manageable parts that can be easily attached and secured to the watercraft.
Solution Approach 2:
The patent introduces intermediary attachment components and structures that facilitate securing the large flag to the watercraft. These intermediary elements serve as mediators between the flag and watercraft, making the attachment process easier and more secure.
Data Source
AI summary
A watercraft safety flag assembly comprising a flexible planar visibility-enhancing element having a forward edge and a rear edge spaced from the forward edge by a width, and a rigid planar stiffening element secured to the flexible planar visibility-enhancing element, where the planar stiffening element substantially spans the width of the flexible planar visibility-enhancing element and is configured to provide maximum stiffening proximate the forward edge, minimal stiffening proximate the rear edge, and decreasing stiffening with increasing distance from the forward edge. There is also provided a header element joined to the forward edge of the flexible planar visibility-enhancing element and which forms a cylindrical sleeve for receiving a mast, where the rigid planar stiffening element extends into the cylindrical sleeve formed by the header element.