Flush Glass Drainage Layout for Noise and Water Ingress Blocking
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Solution Overview
Problem
Conventional flush glass devices in large vehicles allow outside noise and air to enter the vehicle through their drainage paths, and high-pressure washing can also introduce water inside the vehicle.
Innovation Solution
A flush glass apparatus with a sealing member, upper drain holes on the lower rail, a buffer area, and a misaligned lower drain hole, where rainwater flows into a buffer area before exiting through the lower drain hole, preventing noise and air from entering and ensuring water is discharged outside.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional drainage path directly communicates the inside of the vehicle with the outside through a drain hole on the lower rail, then rainwater can be discharged efficiently, but outside noise and air can enter the vehicle through the drainage path
Solution Approach 1:
The patent introduces a buffer area as an intermediary chamber between the upper drain holes and the lower drain hole. Rainwater discharged from the upper drain holes first enters this buffer area, which acts as a mediator that allows water discharge while preventing direct communication between the vehicle interior and exterior, thereby blocking noise and air intrusion paths.
Solution Approach 2:
The patent changes the drainage path from a direct one-dimensional linear path to a multi-dimensional path by introducing a buffer area that extends the drainage route in additional spatial dimensions. This dimensional expansion allows the drainage system to discharge water effectively while creating physical barriers against noise and air intrusion.
2Device complexity
If the lower drain hole is positioned directly below the upper drain holes, then the drainage path is simple and direct, but washing water can enter the vehicle through the drainage path during high-pressure washing
Solution Approach 1:
The buffer area serves as an intermediary chamber that intercepts washing water before it can enter the vehicle through the lower drain hole. During high-pressure washing, water entering from the outside is captured in the buffer area and redirected through the lower drain hole to the exterior, preventing intrusion into the vehicle interior.
Solution Approach 2:
The drainage path is segmented into multiple sections: upper drain holes, buffer area, and lower drain hole. This segmentation creates distinct functional zones that separate the water collection function from the water discharge function, allowing the system to handle both rainwater drainage and washing water protection independently.
3Productivity
If the drainage path provides direct communication between inside and outside of the vehicle, then rainwater discharge is efficient, but the vehicle interior is exposed to external environmental factors
Solution Approach 1:
The buffer area acts as a mediator that maintains efficient water discharge while blocking harmful external factors. Rainwater from the upper drain holes is efficiently discharged through the buffer area to the lower drain hole, while the buffer area simultaneously serves as a barrier against noise and air intrusion.
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 outside noise and air from entering the vehicle and minimizes the ingress of high-pressure washing water by deflecting the drainage path, maintaining interior quietness and dryness.
Implementation Method 1
one or more upper drain holes provided on the lower rail to discharge rainwater on the lower rail to a buffer area between the lower rail and the sealing member
Data Source
AI summary
A flush glass apparatus includes a fixed glass having an opening, an operation glass configured to open and close the opening of the fixed glass, a lower rail configured to slidably support a lower portion of the operation glass, a sealing member provided below the lower rail to seal a gap between an inner surface of the fixed glass and a vehicle body, one or more upper drain holes provided on the lower rail to discharge rainwater on the lower rail to a buffer area between the lower rail and the sealing member, and a drain induction member interposed between the inner surface of the fixed glass and the sealing member and providing a lower drain hole to discharge rainwater in the buffer area to the outside.