Vehicle Door Lining Stepped Cut-Out Conceals Noise Damping
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Solution Overview
Problem
Vehicle door linings generate noise due to rubbing between the lining body and decorative components caused by vehicle vibrations, and existing noise-preventing solutions compromise visual appearance by exposing the noise-preventing member.
Innovation Solution
A vehicle door lining design featuring a decorative component with a stepped cut-out portion to house and conceal the noise-preventing member, ensuring it is flush with the surface and not visible, while securely attaching it to the lining body to prevent noise and maintain aesthetics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a noise-preventing member is attached to the periphery of the decorative component to prevent rubbing noise, then noise prevention is improved, but the visual appearance deteriorates due to exposure of the noise-preventing member
Solution Approach 1:
The noise-preventing member is nested within a stepped cut-out portion formed in the decorative component. The stepped cut-out portion has a first depth from the tip surface to the outer surface, and the noise-preventing member is positioned within this recessed area, allowing it to be concealed from external view while remaining functional in preventing rubbing noise between the decorative component and lining body.
Solution Approach 2:
The solution introduces a dimensional change by creating a stepped cut-out portion that extends from the outer surface toward the tip surface of the decorative component. This vertical dimensionality allows the noise-preventing member to be positioned in a recessed space, effectively hiding it from the external viewing angle while maintaining its noise-prevention function at the interface with the lining body.
2Object-affected harmful factors
If the noise-preventing member is wound around the periphery of the decorative component, then noise prevention is improved, but the noise-preventing member becomes visible between the decorative component and lining body
Solution Approach 1:
The noise-preventing member is nested within the stepped cut-out portion of the decorative component, which provides a concealed space for housing the member. This nesting arrangement ensures that the noise-preventing member is not exposed between the decorative component and lining body, eliminating the visual defect while maintaining noise prevention functionality.
3Ease of manufacture
If the decorative component is fitted into the groove of the lining body, then assembly is simplified, but rubbing noise occurs due to vibration during driving
Solution Approach 1:
The noise-preventing member acts as an intermediary element positioned between the decorative component and the lining body. This intermediary component prevents direct contact and rubbing between the decorative component and lining body, thereby eliminating noise while maintaining the simple fitted assembly structure. The noise-preventing member is attached to the decorative component and extends to contact the lining body, providing a cushioning interface.
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 prevents noise generation from vehicle vibrations without compromising the visual appearance, as the noise-preventing member is hidden and securely bonded within the stepped cut-out portion, enhancing the overall appearance and attachment stability.
Implementation Method 1
preventing noise from being generated by rubbing between the lining body and the decorative component which occurs due to vibration of a vehicle body during driving of the vehicle
Data Source
AI summary
There is disclosed a door lining for a vehicle. The vehicle door lining includes a lining body having a step portion, a decorative component to be combined with the lining body, the decorative component including a periphery having a tip surface and an outer surface extending from the tip surface, and at least one stepped cut-out portion provided at the periphery, the decorative component being combined with the lining body with the tip surface being abutted against an inner surface of the lining body and with the outer surface being surface-contacted with the step portion of the lining body, the stepped cut-out portion extending from the tip surface to the outer surface, and at least one noise-preventing member for preventing noise from being generated by rubbing between the lining body and the decorative component which occurs due to vibration of a vehicle body during driving of the vehicle.