Tonneau Cover Spring Assembly for Smooth Panel Retraction
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Solution Overview
Problem
Existing tonneau cover systems for adventure vehicles face challenges in smooth deployment and retraction, stability during loading and unloading, and noise reduction, with a need for adaptable and secure coverage of cargo areas.
Innovation Solution
The implementation of spring assemblies with overlapping elements and follower assemblies that apply balanced forces to facilitate linear loading and unloading of panels, allowing for smooth deployment and retraction while minimizing noise, and enabling individual panels to interlock and disconnect for controlled coverage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If spring assemblies with overlapping elements are used to apply balanced forces, then smooth deployment and retraction is achieved, but device complexity increases
Solution Approach 1:
The spring assembly is divided into multiple overlapping spring elements (first spring element, second spring element, third spring element) that work independently yet cooperatively. Each spring element is attached at different positions (first position, second position, third position) along the follower assembly, creating segmented force application points that collectively provide smooth, balanced forces during panel deployment and retraction.
Solution Approach 2:
The spring elements are arranged in an overlapping, nested configuration where the first spring element overlaps with the second, and the second overlaps with the third. This nesting allows the springs to be compact while maintaining their individual functional characteristics, enabling smooth force application without requiring excessive space or complexity.
2Stability of the object's composition
If follower assemblies with multiple spring elements are implemented, then stability during loading and unloading is improved, but manufacturing complexity increases
Solution Approach 1:
Different spring elements are positioned at specific local positions along the follower assembly (first position, second position, third position) to apply forces at precise locations. This localized force application ensures stability during loading and unloading operations, with each spring element targeting a specific region of the panel stack to maintain compositional stability.
Solution Approach 2:
Multiple spring elements are combined into a single integrated follower assembly structure. The first, second, and third spring elements work together as a unified system, merging their individual force application capabilities to provide collective stability during panel loading and unloading, rather than requiring separate mechanisms for each function.
3Reliability
If panels interlock and disconnect controllably, then secure coverage is achieved, but device complexity increases
Solution Approach 1:
The panel interlocking mechanism is designed to be dynamic rather than static. Panels can interlock when deployed to provide secure coverage, and disconnect when retracted, allowing the system to adapt its configuration based on operational state. This dynamic behavior enables reliable secure coverage during use while maintaining ease of retraction and storage.
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 solution provides stable, noise-minimized deployment and retraction of tonneau covers, ensuring secure coverage of vehicle cargo areas with interlocking panels that adapt to different configurations, enhancing usability and durability.
Implementation Method 1
Each spring assembly can include multiple spring elements overlapping each other and configured to apply, to a stack of panels within a cartridge, a first force on a first side of the panels and a second force on a second side, opposite the first side, of the panels
Data Source
AI summary
Aspects of the subject disclosure relate to tonneau covers include spring assemblies that facilitate loading and unloading of panels linearly and with high stability. Such spring assemblies and other features of follower assemblies can provide smooth deployment and retraction of the tonneau cover. A tonneau cover can include individual panels that interlock with each other upon deployment and disconnect from each other upon retraction to controllably cover a truck bed or other region of a vehicle, such as a truck.