Flush Vehicle Door Rail Assembly for Smooth Glass Slider Movement
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Solution Overview
Problem
Modular flush doors for vehicles face challenges such as difficulty in assembly due to integrated structures, increased production and management costs, restricted glass slider movement, and issues with fixability and assemblability, leading to excessive costs and inefficiencies.
Innovation Solution
A flush door design featuring a detachable slider fixing rail and garnish plate that form a U-shaped section, allowing for in-line assembly from the outside to the inside, reducing the need for modularization equipment and labor-saving equipment, and using hard materials for the rail and garnish plate to enhance wear resistance and movement performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the glass run and rail are integrated in a modular structure, then the door components can be assembled in an in-line manner, but the assembly difficulty increases due to the integrated structure
Solution Approach 1:
The patent divides the integrated glass run and rail structure into separate components: the glass run (with inner lip and outer lip) and the rail (with insertion portion). This segmentation allows each component to be assembled independently in an in-line manner while reducing the complexity of the overall assembly process, as each piece can be installed separately rather than as a single integrated module.
2Adaptability or versatility
If modularization is implemented for the glass run and garnish, then the door structure becomes more flexible, but production and management costs increase
Solution Approach 1:
The glass run is designed with multiple functions integrated into a single component: it provides structural support, guides the slider movement, and forms sealing interfaces through its inner lip and outer lip. This multi-functional design allows the same component to serve multiple purposes, reducing the need for additional specialized parts and thereby controlling production costs while maintaining structural flexibility.
3Stability of the object's composition
If the glass slider is restricted to the glass run, then the slider is confined to a specific path, but the door glass movement becomes excessive or distributed
Solution Approach 1:
The rail acts as an intermediary component between the glass run and the slider. The rail's insertion portion fits into the glass run and provides additional guidance and constraint for the slider. This intermediary structure ensures the slider follows the correct path while preventing excessive or distributed movement of the door glass, combining the benefits of both the glass run and rail structures.
Data Source
AI summary
A flush door for a vehicle has a detachable slider fixing rail. The flush door includes a door body in white (BIW) having a door frame; a door module mounted on the door frame; a glass configured to be moved up and down by the door module; and a slider. The slider has a movement guide including a connection part connected to the glass and has a body part located in a U-shaped section defined by a rail and a garnish plate. The rail and the garnish plate are configured separately and the garnish plate covers an open section of the rail and guides movement of the slider.