Encapsulated Fixed Window Trim With Over-Molded Seal
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional fixed window modules in motor vehicles suffer from issues such as water leakage, noise transmission, and assembly difficulties, with prior solutions primarily addressing movable window modules and not effectively enhancing the esthetic appearance or simplifying the assembly process for fixed windows.
Innovation Solution
An encapsulated fixed window module design featuring over-molded trim strips with specific profiles and sealing lips that align the exterior surfaces of fixed and movable window panes for improved sealing and noise reduction, while simplifying the assembly process through integrated profiles and antifriction coatings.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If conventional discrete components are used to assemble fixed window modules, then manufacturing flexibility is improved, but assembly difficulty and fit/finish quality worsen
Solution Approach 1:
The patent merges multiple discrete components (window pane, trim pieces, sealing elements, guiding means) into a single integrated fixed window module. The module is manufactured as one unified structure where all components are permanently attached and positioned, eliminating the need for complex assembly operations while maintaining manufacturing flexibility through modular design at the component level.
2Ease of operation
If conventional trim designs are used, then ease of assembly is improved, but water leakage and noise transmission worsen
Solution Approach 1:
The patent employs a continuous sealing element that forms a flexible membrane around the window pane periphery. This sealing element is integrated into the trim structure and creates a water-tight and acoustic barrier between the window module and the door assembly, effectively preventing water leakage and noise transmission while maintaining ease of assembly.
3Ease of manufacture
If prior art solutions for movable window modules are applied to fixed window modules, then assembly process simplification is improved, but esthetic appearance and flush effect worsen
Solution Approach 1:
The patent applies different structural configurations to different regions of the window module. The trim structure is specifically designed with localized features that enable the fixed window pane to be flush with the door outer skin, creating a smooth esthetic appearance. The guiding means and sealing elements are positioned to maintain this flush relationship while allowing simplified assembly processes.
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
Enhances the esthetic appearance by achieving a flush effect between window panes, reduces passenger cabin noise, and simplifies the assembly and tooling process by using over-molded materials and antifriction layers for improved sealing and smooth operation.
Implementation Method 1
The exterior wall of the first profile faces the interior surface and is secured thereto by an over-molded material
Data Source
AI summary
An encapsulated fixed window module for a motor vehicle, includes: a fixed window pane having a peripheral edge extending between exterior and interior surfaces; and a trim strip extending along at least a portion of the peripheral edge, the trim strip including a first longitudinal profile of U-shaped cross section. The first profile defines a longitudinal groove configured to receive a guide carried by a movable window pan. The exterior wall of the first profile faces the interior surface and is secured thereto by an over-molded material which does not cover the peripheral edge along the first profile. The exterior wall has a longitudinal edge which is opposite to the lateral wall and which is substantially aligned with the peripheral edge in a plane that is perpendicular to the fixed window pane.