Fixed Window Glass Insertion Slit for Vehicle Door Assemblies
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing door assemblies face issues with breakage of fixed window glass during the molding process of the fixed window seal, due to dimensional variations, which necessitates a method to install the glass after the seal is formed without causing damage.
Innovation Solution
A door assembly design featuring a door frame with a first window seal and a second window frame, where the first window seal includes a slit in the bottom seal member to allow insertion of the fixed window glass after the seal is molded, and a holding member is coupled to inhibit movement and prevent breakage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the fixed window glass is molded onto the door frame simultaneously with the fixed window seal, then the installation process is simplified, but the fixed window glass may break due to dimensional variations during the molding process
Solution Approach 1:
The patent separates the molding of the fixed window seal from the installation of the fixed window glass. The fixed window seal is molded onto the door frame first, creating a recess that later receives the pre-manufactured fixed window glass. This segmentation allows each component to be manufactured independently with proper tolerances, avoiding the breakage that occurs when glass is molded simultaneously with the seal.
2Reliability
If the fixed window glass is installed after the fixed window seal is molded, then breakage during molding is avoided, but the installation process becomes more complex
Solution Approach 1:
The patent introduces a recess as an intermediary structure within the fixed window seal that facilitates the installation of the fixed window glass. The recess is molded into the seal during the sealing process, and this pre-formed recess then serves as the receiving structure for the glass. This intermediary structure simplifies the subsequent glass installation by providing a ready-made fitting space, thereby reducing overall complexity despite the two-stage process.
3Ease of manufacture
If dimensional variations in the fixed window glass are accommodated during simultaneous molding, then installation simplicity is maintained, but the fixed window glass is more likely to break
Solution Approach 1:
The patent performs preliminary action by manufacturing the fixed window glass separately with controlled dimensional precision before installing it into the pre-formed recess of the fixed window seal. This preliminary manufacturing of the glass component with precise dimensions, followed by its installation into the accommodating recess, allows for quality control of the glass without compromising installation simplicity. The recess is designed to accommodate normal dimensional variations while maintaining a secure fit.
Data Source
AI summary
A door assembly includes a door frame, a first window glass, and a holding member. The door frame includes a first window seal and a second window frame. The first window seal at least partially defines a first window opening. The second window frame at least partially defines a second window opening. The second window frame having a division bar that separates the first window opening and the second window opening. The first window seal having a bottom seal member and a side seal member that extends between the bottom seal member and the division bar. The bottom seal member includes a slit extending along a longitudinal direction of the bottom seal member. The first window glass is inserted into the first window opening through the slit. The holding member is coupled to the bottom seal member to inhibit movement of the first window glass with respect to the first window opening.