Modular Front Grille Mounting for Tool-Free Screen Replacement
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Solution Overview
Problem
Existing front grille assemblies in motor vehicles require complete disassembly of the grille or hood to replace or clean the screen, leading to inefficiency and potential damage to clips during removal.
Innovation Solution
A modular front grille assembly with mechanical mounting features allows for easy removal and replacement of the screen and grille plates without accessing the interior of the vehicle, using fasteners like riv-nuts and threaded inserts for secure attachment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the screen is securely attached to the grille frame using clips, then the screen is held firmly in place, but the clips are damaged during removal and complete disassembly is required for screen replacement
Solution Approach 1:
The fastening system is segmented into separate components: a fastener with a head portion and a mounting portion. The mounting portion can be independently removed from the fastener head, allowing screen replacement without damaging the clips while maintaining secure attachment during operation
Solution Approach 2:
The fastener transitions from a static, permanently attached state to a dynamic, removable state. The mounting portion can be detached from the fastener head through actuation, enabling easy screen replacement while maintaining secure attachment during normal operation
2Strength
If the grille assembly is designed as a single integrated unit, then structural strength is maintained, but maintenance time increases due to complete disassembly requirements
Solution Approach 1:
The grille assembly is segmented into modular components: the grille frame, screen, and fasteners with removable mounting portions. This allows maintenance of individual components without disassembling the entire assembly, reducing maintenance time while maintaining overall structural strength through proper connection interfaces
3Ease of manufacture
If clips are used to attach the screen to the grille frame, then easy installation is achieved, but clips are damaged during removal requiring replacement
Solution Approach 1:
The clip (fastener) is segmented into a reusable head portion and a removable mounting portion. The mounting portion can be detached and replaced without damaging the head portion, maintaining clip durability while preserving easy installation capabilities
Solution Approach 2:
The mounting portion of the fastener is designed to be discarded (removed) and recovered (replaced) independently from the fastener head. This allows the valuable head portion to be reused while replacing only the worn mounting portion, maintaining both ease of installation and component durability
Data Source
AI summary
An apparatus for a front grille assembly for motor vehicles, and a method of installing such includes providing a front grille frame, a screen, a grille plate, and a series of fastener apertures and features. The grille frame may be installed onto the hood of a motor vehicle by a mounting geometry matching the geometry of the hood, and fasteners matching the fasteners of the hood. The screen and grille plate may be installed onto the grille frame by a series of fasteners, such that the screen and grille plate may be removed and replaced without needing access to the interior surface of the hood.