Vehicle Door Lining Assembly for Crash-Stable Trim Position
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Solution Overview
Problem
In vehicle crashes, the deformation of vehicle body components can pose a risk to occupants due to relative displacement and exposure of sharp edges, necessitating a solution to maintain the relative position of components to prevent injury while meeting legal standards and passing crash tests.
Innovation Solution
A cladding arrangement for motor vehicle doors featuring a force transmission element that forms contact with both the fastening structure and cladding element, ensuring their relative position remains unchanged during a crash by transmitting forces effectively, thereby reducing the risk of injury.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If nesting assemblies or using multiple mechanical connections is used to ensure relative position of components, then crash safety is improved, but assembly complexity and cost increase
Solution Approach 1:
The patent extracts the force transmission function from the complex mechanical connection system and concentrates it into a single dedicated force transmission element. This element is integrated into the trim assembly, allowing force to be transmitted directly from the trim element to the support structure without requiring multiple separate mechanical connections or nesting assemblies, thus maintaining crash safety while simplifying the overall assembly structure
Solution Approach 2:
The force transmission element serves multiple functions simultaneously: it maintains the relative position of the trim element to the support structure, transmits crash forces, and prevents detachment of the trim assembly. This multi-functionality eliminates the need for separate components for each function, reducing assembly complexity while ensuring reliable crash performance
2Strength
If deep-drawn metal parts are integrated into the structure, then load-bearing capacity is improved, but manufacturing cost and complexity increase
Solution Approach 1:
The patent employs composite construction by combining the force transmission element made of one material with the trim element and support structure made of potentially different materials. This allows each component to be manufactured from materials optimized for its specific function, reducing overall manufacturing cost and complexity while maintaining the necessary load-bearing capacity through the composite structure
3Reliability
If components are rigidly connected to prevent relative displacement, then occupant safety is improved, but ability to absorb crash forces decreases
Solution Approach 1:
The force transmission element is designed with dynamic characteristics that allow it to maintain the relative position of components while absorbing crash forces through controlled deformation. The element can elastically or plastically deform during impact, dissipating energy while preventing the trim element from detaching or creating sharp edges, thus achieving both occupant safety and force absorption
Data Source
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AI summary
The invention relates to a lining assembly (1) for a motor vehicle, a motor vehicle door and a motor vehicle. The lining assembly (1) for fitting out an interior of a motor vehicle, in particular for fitting out an interior of a motor vehicle door, comprises an operating element (30) that can be mechanically connected to a securing structure (20), at least one lining element (40) arranged on an outer side (33) of the operating element (30) at least in sections, as well as at least one force-transmission element (10) which is arranged on a side of the lining element (40) facing away from the operating element (30). The force-transmission element (10) forms at least one first contact element (14) for contacting on the securing structure (20) and at least one second contact element (15) for contacting on the lining element (40). In this way, with the effect of a force (90) on the lining assembly (1) with at least one component perpendicular to the side of the lining element (40) facing away from the operating element (30), and a shifting of the operating element (30) brought about by the effect of the force (90), the relative position of the lining element (40) to the operating element (30) remains at least substantially unchanged.