Vehicle Bumper Shield Support Assembly for Vertical Displacement Control
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Solution Overview
Problem
Conventional motor vehicle shields experience deterioration and potential disconnection from the vehicle wing due to excessive vertical displacement caused by road irregularities and the weight of the shield itself.
Innovation Solution
A support system for the shield, comprising a protruding part on the shield that collaborates with a rigid structure of the vehicle to limit vertical displacement, ensuring the shield remains securely attached even under significant vertical acceleration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the bumper is made rigid to maintain structural strength, then the strength is improved, but the vertical displacement under acceleration increases causing damage and detachment
Solution Approach 1:
The support system is divided into multiple independent elements (first support element and second support element) that can deflect independently. Each element handles a portion of the vertical load, allowing the rigid bumper to maintain strength while the segmented support system absorbs displacement through controlled deflection of individual elements.
Solution Approach 2:
The support elements are designed with specific geometric parameters (dimensions, thickness, material properties) that allow them to deflect by a controlled amount under vertical acceleration. By changing these parameters, the system absorbs the vertical displacement that would otherwise cause damage or detachment, while maintaining the rigid bumper's structural integrity.
2Duration of action of stationary object
If the bumper weight is increased to improve durability, then the durability is improved, but the vertical acceleration effect is amplified causing excessive displacement
Solution Approach 1:
The support elements act as counterbalancing structures that resist the vertical acceleration forces amplified by the bumper's weight. When vertical acceleration occurs, the support elements deflect in opposition to the force direction, providing a counteracting effect that prevents excessive displacement and maintains connection reliability despite the heavy bumper mass.
3Reliability
If the support system is made more complex to prevent detachment, then the connection reliability is improved, but the device complexity increases
Solution Approach 1:
Instead of making the entire support system complex, the invention applies local reinforcement through specifically designed support elements at critical locations. Each support element has localized geometric features (thickness variations, cross-sectional shapes) that provide the necessary deflection characteristics only where needed, maintaining simplicity elsewhere in the system.
Solution Approach 2:
The support elements are designed to be dynamically responsive to vertical acceleration forces. Rather than using complex mechanical linkages or active control systems, the elements naturally deflect according to their elastic properties when subjected to vertical loads, providing adaptive protection against detachment through passive dynamic behavior.
Data Source
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AI summary
Assembly for supporting a motor vehicle shield, the assembly comprising a motor vehicle shield and a rigid structure of the motor vehicle, characterized in that the shield includes a projecting part oriented towards the interior of the vehicle, the projecting part being able to collaborate with the rigid structure to limit a displacement of the shield along a vertical terrestrial axis directed towards the ground, in particular when the vehicle drives through a pothole.