Vehicle Door Curtain Assembly for Frameless Window Deployment
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Solution Overview
Problem
Frameless vehicle doors present a challenge for securing shade bars, preventing even deployment and retraction of door curtains, and existing solutions with hooks expose gaps and reduce appearance.
Innovation Solution
A manually deployable vehicle door curtain assembly that uses a rod, slider, and support member with elastic stopper and cables to maintain curtain deployment without securing to the door frame, allowing automatic retraction via spring force or door window glass operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If hooks are used to secure the shade bar to the door frame, then the curtain can be evenly deployed and maintained, but the appearance is reduced due to exposed hooks and gaps are created between the shade bar and door frame
Solution Approach 1:
The patent removes the traditional hook mechanism and door frame structure, extracting only the essential function of securing the shade bar. The shade bar is designed to be self-supporting without requiring external hooks or a door frame, thereby eliminating exposed hooks and gaps while maintaining deployment stability.
Solution Approach 2:
The curtain assembly is segmented into independent functional components: the shade bar with integrated support features, the curtain fabric, and the rod mechanism. This segmentation allows the shade bar to function independently without relying on a door frame or hooks, simplifying the overall structure.
2Reliability
If a door frame is used to support the shade bar, then the curtain can be securely deployed, but the structure becomes more complex and hooks are exposed
Solution Approach 1:
The door frame is completely removed from the design, extracting only the essential function of supporting the shade bar. The shade bar is designed with integrated support features that eliminate the need for a separate door frame structure, thereby improving appearance while maintaining securing reliability.
3Ease of operation
If electric components are used for automatic curtain deployment and retraction, then operation convenience is improved, but production costs and device complexity increase
Solution Approach 1:
The curtain system uses the door's existing movement (opening/closing) to automatically trigger curtain deployment and retraction. The door's natural motion serves the dual purpose of both door operation and curtain control, eliminating the need for separate electric motors and control systems while maintaining ease of operation.
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
Enables even curtain deployment on frameless doors without hooks, simplifies structure by eliminating electric components, and reduces production costs while ensuring convenient operation.
Implementation Method 1
The stopper may be rotatably mounted on the vehicle door and may be elastically supported toward the trajectory of the slider by a torsion spring.
Data Source
AI summary
An embodiment manually deployable vehicle door curtain assembly includes a curtain retractable into a vehicle door and deployable to cover a door window glass, a rod configured to be mounted on the vehicle door and to be simultaneously movable with the curtain to support the curtain, a slider slidably coupled with the rod and movable up and down together with the rod, and a support member configured to allow or prevent descending movement of the slider.