Drill-Free DEF Tank Cover via Pre-Formed Tabs
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Solution Overview
Problem
Existing diesel exhaust fluid (DEF) tank covers require drilling into the vehicle frame for installation, which can lead to incorrect placement and damage to the frame, and involves additional tools and steps, making the process cumbersome and error-prone.
Innovation Solution
A DEF tank cover design featuring a housing with inboard and outboard attachment tabs and vertical brackets that allow for bolt-through installation without drilling, using existing factory bolts and holes, ensuring secure attachment without additional structural modifications.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If drilling is required for installation, then secure attachment is achieved, but installation complexity and risk of damage increase
Solution Approach 1:
The patent incorporates pre-drilled holes and threaded inserts directly into the cover housing during manufacturing. This preliminary preparation eliminates the need for drilling during installation, as users simply need to insert bolts through the pre-prepared holes. The attachment tabs are also pre-formed with alignment features, further simplifying the installation process while maintaining secure attachment.
Solution Approach 2:
The cover design includes self-aligning attachment tabs with integrated holes that automatically position themselves during installation. The tabs are designed to engage with corresponding features on the tank, guiding the bolts into place without requiring precise drilling or alignment by the installer. This self-service mechanism reduces installation complexity while ensuring secure attachment.
2Ease of operation
If additional holes are drilled into the frame, then attachment points are created, but structural integrity and safety are compromised
Solution Approach 1:
The patent extracts the hole-drilling operation from the installation process entirely. Instead of creating new holes in the cover or frame during installation, all attachment holes are pre-drilled and prepared in the cover housing during manufacturing. This extraction eliminates the harmful effect of drilling into the vehicle frame, preserving structural integrity while maintaining ease of installation.
Solution Approach 2:
All necessary holes, threaded inserts, and alignment features are prepared in advance during cover manufacturing. This preliminary action transfers the complex drilling operation from the installation phase to the manufacturing phase, where it can be performed under controlled conditions without risking damage to the vehicle frame. The installer only needs to insert bolts, not create holes.
3Manufacturing precision
If multiple tools are required for installation, then precise attachment is possible, but installation time and complexity increase
Solution Approach 1:
The patent designs the attachment system to work with standard, commonly available tools. The bolts, nuts, and threaded inserts are designed to accommodate standard wrenches or socket tools that most vehicle owners would already have. This universality eliminates the need for specialized drilling or tapping tools, reducing installation time while maintaining precise attachment through the pre-formed threaded holes and alignment features.
Solution Approach 2:
All precision drilling, tapping, and hole formation is completed during manufacturing before the cover reaches the customer. This preliminary precision work eliminates the need for the installer to use multiple specialized tools for drilling and threading. The installer only needs to perform the simple task of inserting bolts through pre-prepared holes, dramatically reducing installation time while maintaining high precision.
Data Source
AI summary
Embodiments of a tank cover for covering a diesel exhaust fluid tank of a vehicle. The tank cover can be added directly over a diesel exhaust fluid tank or can be used to replace a factory/OEM or other replacement cover. In some embodiments, the tank cover can be easily installed onto a vehicle through existing components, and no additional drilling may need to be performed.