Door Opening Reinforcement Assembly Without Panel Read-Through
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Solution Overview
Problem
Thin gauge metallic panels used in transportation vehicles are prone to damage and deformation due to increased stresses at localized areas, such as openings for handles, where existing reinforcement methods often result in undesirable read-through to the opposing surface.
Innovation Solution
A reinforcement assembly comprising a carrier with a central opening and a rim portion that circumscribes it, featuring apertures for adhesive reception, which is overmolded onto the carrier and expands upon activation to securely attach to the panel without visible read-through.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If reinforcement methods are applied to thin gauge metallic panels, then structural integrity is improved, but visible read-through occurs on the panel surface
Solution Approach 1:
The reinforcement device is designed with a two-sided structure where each side has different characteristics optimized for its specific function: one side provides structural reinforcement while the other side maintains aesthetic appearance by matching the panel's visual properties
Solution Approach 2:
The reinforcement device utilizes a thin profile with a core structure bonded to panel-matching surfaces, creating a flexible yet strong reinforcement layer that does not compromise the panel's visual appearance when viewed from either side
2Weight of moving object
If thinner materials are used for light-weighting, then vehicle weight is reduced, but resistance to damage and deformation decreases
Solution Approach 1:
The reinforcement device employs a composite structure combining a rigid core with adhesive bonding layers, creating a hybrid system that provides enhanced strength and damage resistance while maintaining compatibility with thin gauge metallic panels used for light-weighting
3Strength
If reinforcement structures are added to panel openings, then localized stress resistance is improved, but device complexity increases
Solution Approach 1:
The reinforcement device integrates multiple functions into a single component: the core structure provides structural reinforcement, the adhesive layers provide bonding and stress distribution, and the panel-matching surfaces provide aesthetic coverage, eliminating the need for separate reinforcement elements
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
Effectively reinforces localized areas of thin gauge materials by providing structural integrity around openings while maintaining a clean appearance on the panel surface, enhancing durability without compromising aesthetics.
Implementation Method 1
The adhesive may expand upon activation
Data Source
AI summary
A reinforcement assembly comprising a carrier including a connection means to connect to a panel, a rim portion for receiving an adhesive, the rim portion surrounding a central opening portion, and a plurality of apertures located in the rim portion, the apertures adapted for receiving the adhesive.