Retractable Bimini Top Using Motorized U-Frame and Radar Arch Mount
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Solution Overview
Problem
Existing bimini top systems for boats obstruct deck space and do not offer hands-free operation, failing to provide unimpeded movement and task performance for passengers and crew.
Innovation Solution
A retractable bimini top device with a U-shaped support frame and reversible motors that automatically deploys and retracts within existing rooftop structures, using a spring-loaded roller for canvas storage and extension, allowing hands-free operation without additional deck obstructions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If pole systems are mounted to support the bimini top, then sunshade protection is provided, but obstructions are created on the deck for fishing, docking, and boarding
Solution Approach 1:
The bimini top support system is extracted from traditional deck-mounted poles and relocated to the boat's existing rooftop structure (radar arch). The support frame attaches to the rooftop member above the canvas top, completely removing obstructions from the deck area while maintaining full sunshade coverage functionality.
Solution Approach 2:
The support structure is moved from the horizontal deck plane to the vertical rooftop dimension. By mounting the support frame to the radar arch and extending legs downward, the system utilizes the vertical space above the canvas top, eliminating interference with deck-level activities while providing the same protective function.
2Ease of operation
If manual deployment is used, then the bimini top can be raised and lowered, but hands-free automated operation is not achieved
Solution Approach 1:
The bimini top system incorporates automated motorized actuators that enable self-service operation. The motors automatically extend and retract the support frame legs, allowing the canvas top to be deployed and stowed without manual intervention, achieving complete hands-free operation while maintaining ease of control via remote or automatic sensing.
3Strength
If additional supporting structure is mounted on the boat deck, then the bimini top can be supported, but the device complexity and installation cost increase
Solution Approach 1:
The system utilizes the boat's existing rooftop structure (radar arch) for mounting the bimini top support frame. This multi-functional approach allows the radar arch to serve both its original navigation equipment mounting purpose and the new bimini top support function, eliminating the need for additional deck-mounted support structures and reducing overall system complexity.
Solution Approach 2:
The bimini top support frame and mechanisms are nested within and integrated to the existing rooftop structure. The support legs extend downward from the radar arch, and the canvas top is positioned beneath the frame, creating a compact nested arrangement that minimizes additional space requirements and simplifies installation.
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
The automated system provides effective sunshade protection without hindering deck movement or tasks, suitable for sport fishing, and is inexpensive to manufacture and install, enhancing boat functionality and appearance.
Implementation Method 1
A canvas cover attached along its outer end to the transverse portion of the U-shaped frame is stored in a rolled-up state about a spring-loaded roller mounted transversely between the housing tube members
Implementation Method 2
each upon a lead screw that is driven by a reversible motor electrically powered and mounted at the end of each tube
Data Source
Figure 1
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AI summary
A retractable bimini top device is disclosed for automated operation and mounted attachment to an existing rooftop member set over the deck of a boat. The inventive device includes a U-shaped support frame having respective side legs adapted to travel longitudinally through a pair of housing tube members disposed in parallel and mounted beneath the rooftop member. The side legs of the U-shaped frame are coaxially fitted within the housing tube members and made to travel together in unison through the respective tube members, each upon a lead screw that is driven by a reversible motor electrically powered and mounted at the end of each tube. A canvas cover attached along its outer end to the transverse portion of the U-shaped frame is stored in a rolled-up state about a spring-loaded roller mounted transversely between the housing tube members so that the canvas cover may be extended in a substantially horizontal manner and retracted as the side legs of the support frame are moved in alternate linear directions through the housing tube members.