Foldable Vehicle Roof System with Nested Frame Storage
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Solution Overview
Problem
Convertible vehicle tops, especially in two-seater models, face challenges with limited space for storing removable tops when weather conditions change unfavorably during a trip, as existing solutions do not provide a convenient and space-efficient method for storing the top within the vehicle.
Innovation Solution
A foldable and stowable roof system comprising interconnected frame members and release mechanisms allows for easy detachment and storage of the roof within the vehicle, utilizing a frame structure with side rails and bows that can be quickly assembled and disassembled using biasable pins and alignment features for tension application and alignment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a removable top is used in a two-seater vehicle, then the vehicle can enjoy favorable weather conditions, but there is no place to store the removable top when weather conditions change unfavorably during a trip
Solution Approach 1:
The roof system is designed to nest within the vehicle's existing structure. The frame members are configured to fold and store within the passenger compartment or trunk space, allowing the roof to be compacted into a small volume when not in use, effectively solving the storage space problem in two-seater vehicles
2Strength
If a hard top is used, then the roof provides solid coverage and structural integrity, but the roof cannot be easily removed or stored within the vehicle
Solution Approach 1:
The roof system is divided into modular frame members that can be selectively connected and disconnected. The frame consists of separate components (side rails, bows, cross members) that can be assembled and disassembled quickly, providing both structural integrity when connected and ease of removal when needed
Solution Approach 2:
The frame members incorporate movable connections with release mechanisms that allow the structure to transition from a rigid, load-bearing state to a disassembled, storable state. The biasable pins and alignment features enable dynamic reconfiguration of the frame structure
3Ease of operation
If a soft top with foldable frame is used, then the top can be removed and stored, but the frame requires multiple pivotable members and complex mechanisms
Solution Approach 1:
The frame is segmented into distinct members (side rails, bows, cross members) that connect through simple, standardized interfaces. This segmentation allows each member to be independently positioned and connected, reducing the complexity of individual connection mechanisms while maintaining overall system functionality
Solution Approach 2:
The frame members are designed with universal connection features that can accommodate multiple positioning and configuration options. The alignment features and receiving structures allow the same components to serve multiple functions in different roof configurations, reducing the need for specialized mechanisms
Data Source
AI summary
The present invention is a foldable and stowable roof system which can be selectively detached from the vehicle and stored within a short amount of time. The foldable and stowable roof system of the present invention includes a first frame member connected to a roof member, a second frame member connected to a roof member, and a third frame member selectively connected to the first frame member and the second frame member. Also included is a fourth frame member selectively connected to the first frame member and the second frame member such that when the third frame member is connected to the first frame member and the second frame member, and the fourth frame member is connected to the first frame member and the second frame member, the first frame member, second frame member, third frame member, and fourth frame member, form a frame for supporting the roof member.