Vehicle Fixed Window Molding With Wind-Noise Blocking Plate
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Solution Overview
Problem
Existing window glasses with resin frames for vehicles suffer from wind-induced noise due to gaps between the glass and the door panel, necessitating additional damping members that increase material and installation costs.
Innovation Solution
A window glass design featuring a resin molding with integrated plate-shaped members projecting outward, strategically positioned to attenuate wind entering the gap between the glass and door panel, with varying rigidity and orientation to enhance noise suppression.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a damping member is provided at the molding lower part to suppress wind-induced noise, then noise suppression is improved, but material cost and installation complexity increase
Solution Approach 1:
The patent integrates the noise suppression function directly into the molding lower part by providing a plate-shaped member as an integral component. This merging of the damping function into the existing molding structure eliminates the need for separate damping members and their associated installation steps, thereby reducing installation complexity while maintaining noise suppression effectiveness
Solution Approach 2:
The molding lower part is designed to inherently suppress wind-induced noise through its own structural features (the plate-shaped member), without requiring external damping components. The molding structure serves its primary support function while simultaneously providing noise suppression, making the system self-sufficient and reducing overall complexity
2Object-affected harmful factors
If a damping member is provided at the molding lower part to suppress wind-induced noise, then noise suppression is improved, but material cost increases
Solution Approach 1:
The noise suppression function is merged into the molding lower part itself through the plate-shaped member, which is formed from the same resin material as the molding. This eliminates the need for additional damping materials (such as EPDM sealers or sponges), thereby reducing material cost while achieving the desired noise suppression effect
Solution Approach 2:
The molding lower part is designed to perform multiple functions: structural support for the glass plate and wind-induced noise suppression. By making the molding structure multi-functional, the patent eliminates the need for separate damping components, reducing both material cost and installation complexity
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 suppresses wind-induced noise at a lower cost by integrating plate-shaped members that are rigidly designed to block and guide wind, reducing noise transmission while minimizing additional components and installation steps.
Implementation Method 1
a plate-shaped member projecting toward an outside of the vehicle is provided at the molding lower part... effectively suppresses wind-induced noise... block and guide wind, reducing noise transmission
Data Source
AI summary
A window glass for a vehicle capable of suppressing, at a low cost, generation of an abnormal noise caused by entered wind. A window glass for a vehicle according to an aspect of the present disclosure is used for a fixed window of the vehicle and includes a glass plate and a molding made of a resin provided at a peripheral edge of the glass plate. In the molding, a molding lower part disposed on a lower side of the window glass for the vehicle is configured to be disposed on an inside of the door panel when the window glass for the vehicle is mounted to a door panel, and a plate-shaped member projecting toward an outside of the vehicle is provided at the molding lower part.