Self-Centering Tonneau Cover Cam Mechanism
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Solution Overview
Problem
Conventional tonneau cover systems for pickup trucks require complex frame networks and numerous fastening devices for installation, making them time-consuming to install and remove, and often result in a bulky appearance due to the need for increased height to accommodate a one-inch thick foam core for structural integrity.
Innovation Solution
A tonneau system with self-aligning edge members featuring cam surfaces that engage the cargo box sides for easy installation and a reduced profile, combined with a hinge assembly and integrated snap-on seal for secure and adhesive-free attachment, allowing the system to self-center and maintain structural integrity without additional frames or brackets.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a complex frame network with numerous fastening devices is used, then structural integrity is improved, but device complexity and installation time increase
Solution Approach 1:
The patent removes the complex frame network and numerous fastening devices from the tonneau cover system, retaining only the essential panel sections that directly attach to the cargo box. This extraction eliminates unnecessary structural elements while preserving the core functionality and structural integrity through simplified direct attachment mechanisms.
Solution Approach 2:
The tonneau cover is divided into multiple panel sections that can be independently positioned and attached. Each panel section functions as a separate unit that can be easily installed and removed, reducing the overall complexity of the system while maintaining structural integrity through distributed attachment points.
2Strength
If a complex frame network with numerous fastening devices is used, then structural integrity is improved, but installation time and removal time increase
Solution Approach 1:
The patent eliminates time-consuming installation processes by removing the complex frame network and numerous fastening devices. The simplified panel sections can be directly attached to the cargo box without requiring extensive assembly steps, significantly reducing installation and removal time while maintaining structural integrity.
3Strength
If increased height is used to accommodate foam core, then structural integrity is improved, but the bulky appearance worsens
Solution Approach 1:
The patent removes the one-inch thick foam core from the tonneau cover system, eliminating the need for increased height to accommodate it. The panel sections are designed to achieve structural integrity through their construction and attachment method rather than relying on thick insulating cores, resulting in a reduced profile and more aesthetically pleasing appearance.
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 tonneau system simplifies installation, maintains structural integrity with a reduced profile, and prevents environmental contaminants while minimizing the need for additional hardware, offering a reliable and aesthetically pleasing solution.
Implementation Method 1
The edge members each have a downwardly extending cam surface engagable with opposing sides of the cargo box of the vehicle to generally self-center the panel section between the opposing sides of the cargo box
Data Source
AI summary
A tonneau system for a cargo box of a vehicle having at least one panel section having opposing edge members. The edge members each have a downwardly extending cam surface engagable with opposing sides of the cargo box of the vehicle to generally self-center the panel section between the opposing sides of the cargo box.