Vehicle Window Glass Seal Structure for Rainwater Blocking
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Solution Overview
Problem
The existing techniques for sealing gaps between movable and fixed vehicle window glasses, which use multiple types of seal members, complicate the structure and increase manufacturing costs.
Innovation Solution
A window glass system for vehicles that includes a fixed glass with an opening, a movable glass that fits into the opening, a support member for sliding the movable glass, and a seal member with a deformable cylindrical part and an engaging part, where the engaging part is formed by a hard elastic body and the deformable part by a soft elastic body, fitted into a groove on the movable glass.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If two types of seal members are used to seal the gap between movable glass and fixed glass, then rainwater prevention is improved, but device complexity and manufacturing cost increase
Solution Approach 1:
The patent combines multiple seal member functions into a single integrated seal member. The groove structure on the movable glass frame accommodates different sealing elements (first seal member for the gap, second seal member for the groove), merging the functions of what were previously separate components. This reduces device complexity while maintaining rainwater prevention effectiveness.
Solution Approach 2:
The seal member is segmented into functional zones within a single component. The groove is divided into a first region (for the first seal member) and a second region (for the second seal member), allowing different sealing functions to be performed by different portions of the same seal member structure. This segmentation maintains reliability while simplifying the overall device.
2Reliability
If two types of seal members are used to seal the gap between movable glass and fixed glass, then rainwater prevention is improved, but manufacturing cost increases
Solution Approach 1:
By integrating multiple seal functions into a single seal member with a groove structure, the patent reduces the number of separate components that need to be manufactured and assembled. This merging approach lowers manufacturing costs while maintaining the dual-sealing functionality needed for effective rainwater prevention.
Solution Approach 2:
The single seal member performs multiple sealing functions: the first seal member seals the gap between movable and fixed glass, while the second seal member seals the groove. This multi-functionality eliminates the need for separate seal components, reducing manufacturing complexity and cost while maintaining reliable rainwater prevention.
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
This solution reduces the manufacturing cost of the seal member while maintaining effective sealing to prevent rainwater from entering the vehicle, and it simplifies the structure compared to using multiple seal members.
Implementation Method 1
a seal member configured to seal a gap between a peripheral edge of the movable glass and a peripheral edge of the opening in the fixed glass when the movable glass is fitted into the opening in the fixed glass, wherein the seal member includes a deformable cylindrical part deformable at the time of sealing
Implementation Method 2
the engaging part is formed by using a hard elastic body, and the deformable cylindrical part is formed by using a soft elastic body
Data Source
AI summary
A window glass for vehicle according to an aspect of the present disclosure includes: a fixed glass fixed to a vehicle; a movable glass configured to be fitted into an opening of the fixed glass; support members; and a seal member configured to seal a gap between the movable glass and the fixed glass in which: a frame is provided on the peripheral edge of the movable glass; the frame includes a groove into which the seal member is fitted; the seal member includes a deformable cylindrical part and an engaging part extending from the deformable cylindrical part toward the groove; the engaging part is formed by a hard elastic body, and the deformable cylindrical part is formed by a soft elastic body; and a height of a mouth of the groove is larger than a thickness of a root of the engaging part.