Vehicle Window Assembly Couplers for Accurate Sealing Fit
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Solution Overview
Problem
Vehicle window parts assemblies with separate glass run and fixed window glass with a division bar face inefficiencies in logistics and assembly, leading to potential failure in exhibiting required functions like water tightness unless accurately assembled.
Innovation Solution
The assembly integrates a fixed window glass with a division bar and a glass run, where the resin frame and division bar are molded together, and includes couplers to ensure accurate assembly, with guide portions in a C-shape to secure the glass run components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the glass run and fixed window glass with division bar are stored or transported as one unit, then assembly accuracy is improved, but logistics efficiency deteriorates
Solution Approach 1:
The invention divides the window assembly into separate components (glass run and fixed window glass with division bar) that can be stored and transported independently. The glass run includes coupling portions that engage with corresponding coupling portions on the fixed window glass, enabling accurate reassembly after separate logistics handling. This segmentation resolves the contradiction by allowing separate storage (improving logistics efficiency) while maintaining assembly accuracy through the coupling mechanism.
2Productivity
If the glass run and fixed window glass with division bar are prepared as separate members, then logistics efficiency is improved, but assembly accuracy deteriorates
Solution Approach 1:
The coupling portions are pre-formed on both the glass run and the fixed window glass with division bar during manufacturing. These preliminary-formed coupling structures enable accurate alignment and assembly when the components are brought together later. This preliminary action resolves the contradiction by allowing separate logistics handling while ensuring assembly accuracy through the pre-configured coupling mechanisms.
3Volume of stationary object
If the glass run and fixed window glass with division bar are prepared as separate members, then storage space is improved, but water tightness reliability deteriorates
Solution Approach 1:
The window assembly is segmented into separate components that can be stored independently, optimizing storage space utilization. The glass run and fixed window glass with division bar are designed with complementary coupling portions that ensure precise alignment when assembled. This segmentation with precise coupling resolves the contradiction by enabling efficient storage while maintaining water tightness reliability through accurate reassembly.
4Manufacturing precision
If the guide portion has decreasing distance between both edges, then assembly accuracy is improved, but manufacturing complexity increases
Solution Approach 1:
The guide portion is designed with a specific geometric parameter variation - the distance between both edges decreases along the insertion direction. This parameter change creates a tapered geometry that guides accurate assembly. While this does increase mold complexity slightly, the patent accepts this trade-off to achieve the desired assembly accuracy, particularly for preventing water leakage. The C-shaped cross-section with decreasing edge distance provides self-aligning features that simplify the assembly process despite the complex mold required.
Data Source
AI summary
A vehicle window parts assembly includes a fixed window glass with a division bar, the fixed window glass with a division bar including a fixed window glass having an outer periphery, a resin frame attached to the periphery, and a division bar attached to a surface of the resin frame opposite to the fixed window glass and having a guide portion formed therein, such that the resin frame and the division bar are integrally molded to the fixed window glass as an integral molded product; and a glass run including a first glass run vertical side, a second glass run vertical side, and a glass run upper side connecting the first glass run vertical side and the second glass run vertical side; wherein the glass run further includes a first coupler, and the fixed window glass with a division bar further includes a second coupler.