Triangular Tonneau Cover Stack Stability and Auto-Latch
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Solution Overview
Problem
Conventional tonneau covers lack stability when folded upright, often blocking the center high mount stop lamp and creating drag due to their rectangular profile, and they require manual unlatching and re-latching, which can be cumbersome.
Innovation Solution
A tonneau cover design featuring a bulkhead panel with a triangularly-shaped stack of cover panel sections, where the bottom portion is wider than the top, providing stability and using a mechanical catch assembly that automatically secures and releases the cover without manual intervention, ensuring secure storage and easy access.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional tonneau covers are folded upright, then they provide secure storage, but they block the center high mount stop lamp and create drag due to rectangular profile
Solution Approach 1:
The tonneau cover is designed with an asymmetric triangular profile where the rear edge is higher than the front edge when folded upright. This asymmetry allows the cover to clear the center high mount stop lamp while maintaining stability through the bulkhead panel that engages with the truck bed structure.
Solution Approach 2:
The cover transitions from a traditional horizontal rectangular folding pattern to a vertical triangular configuration. By changing the dimensional orientation and creating a triangular profile instead of rectangular, the cover achieves both lamp clearance and aerodynamic benefits while maintaining secure storage capability.
2Reliability
If conventional tonneau covers are folded upright, then they provide coverage, but they lack stability due to rectangular profile
Solution Approach 1:
The asymmetric triangular design with the rear edge higher than the front edge creates inherent stability through geometric configuration. The bulkhead panel at the rear provides a broader base for engagement with the truck bed, preventing the cover from toppling forward while maintaining coverage.
Solution Approach 2:
The bulkhead panel acts as an intermediary structural element between the tonneau cover and the truck bed. It provides engagement points and structural support that stabilize the folded cover, preventing lateral movement and maintaining the triangular profile configuration.
3Reliability
If manual latching is used, then the cover can be secured, but it requires cumbersome manual unlatching and re-latching operations
Solution Approach 1:
The latching system is designed to automatically engage and disengage without manual intervention. When the cover is folded to the upright position, the mechanical catch assembly automatically latches the cover to the bulkhead panel, and automatically releases when the cover is moved, eliminating the need for manual operation.
Solution Approach 2:
The manual mechanical latching system is replaced with an automatic mechanical catch assembly that uses the motion of the cover itself to trigger engagement and disengagement. This substitution eliminates the need for manual operation while maintaining secure attachment when folded.
Data Source
AI summary
A tonneau cover for a bed of a truck is provided. The tonneau cover includes several improvements including but not limited to a bulkhead panel that is secured to the truck. A first cover panel section pivotably attached to the bulkhead panel. A first intermediate panel section pivotably attached to the first cover panel section and a second panel section. A second intermediate panel section pivotably attached to the second cover panel section and a third panel section. The first cover panel section, the second cover panel section, and the third cover panel section fold to form a stack of cover panel sections which is pivoted upright onto the bulkhead panel which supports the stack of cover panel sections in an upright position. The second intermediate panel section sets upon the bulkhead panel when the stack of cover panel sections is pivoted upright onto the bulkhead panel.