Rear Arm Assembly for Three-Piece Tailgate Tarp Systems
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Solution Overview
Problem
Existing tarp cover systems are not specifically designed to work with three-piece tailgates, limiting their functionality and compatibility with certain truck configurations.
Innovation Solution
A rear arm assembly for a tarp cover system that includes a main roller arm, pivotally attached first and second arms, and a third arm connected by a curved second connecting member, with adjustable apertures for length adjustment and a torsion spring axle for tension, allowing the system to be securely attached to a three-piece tailgate without compromising its functionality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If existing tarp cover systems are used with three-piece tailgates, then the tarp cover can provide coverage, but the system cannot be securely attached without compromising tailgate functionality
Solution Approach 1:
The tailgate is divided into three separate pieces (left door, center door, right door) that can be independently positioned. The rear arm assembly is designed to attach to specific portions of these segmented tailgate pieces, allowing selective attachment points that maintain both security and functionality. The mounting bracket engages with the left door while the assembly clears the center door chute, demonstrating segmentation-based compatibility.
Solution Approach 2:
The rear arm assembly incorporates multiple pivot points (first pivot point between first and second arms, second pivot point between second and third arms) that allow dynamic adjustment of the assembly's position and angle. This dynamic capability enables the assembly to adapt to different tailgate configurations and heights while maintaining secure attachment, resolving the contradiction between fixed attachment security and adaptable functionality.
2Reliability
If the rear arm assembly is designed for fixed attachment, then attachment security is improved, but compatibility with different tailgate heights and widths deteriorates
Solution Approach 1:
The rear arm assembly uses a multi-arm structure with pivot points that allow dynamic repositioning. The first arm, second arm, and third arm can rotate relative to each other at their respective pivot points, enabling the assembly to accommodate various tailgate heights and widths while maintaining secure attachment through the mounting bracket.
Solution Approach 2:
The assembly allows for parameter adjustments in its geometric configuration through the pivot points. By changing the angles and positions of the arms relative to each other, the system can adapt to different tailgate dimensions (heights and widths) while maintaining reliable attachment, effectively changing the geometric parameters of the assembly to match different installation scenarios.
3Adaptability or versatility
If the rear arm assembly includes adjustable components, then adaptability to different tailgates is improved, but device complexity increases
Solution Approach 1:
The assembly is divided into distinct modular components (first arm, second arm, third arm, mounting bracket) that can be independently manufactured and assembled. This segmentation allows for standardized connection interfaces at the pivot points, which simplifies the overall assembly process despite the multiple moving parts, and enables adaptability through configuration rather than complex custom components.
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
Enables the tarp cover system to function seamlessly with three-piece tailgates, allowing the tailgate to remain fully operational while providing effective tarp coverage and wind resistance, with adjustable components for compatibility with different tailgate heights and widths.
Implementation Method 1
a torsion spring axle for tension
Data Source
AI summary
A rear arm assembly for a tarp cover system comprising a main roller arm, the rear arm assembly comprising a first arm that is secured to the main roller arm of the tarp cover system by a first connecting member, a second arm that is pivotally attached to the first arm, and a third arm that is connected to the second arm by a second connecting member that is curved at a roughly ninety-degree angle. The rear arm assembly is not attached to the tailgate at any point other than at the mounting bracket.