Door Curtain Assembly with Adjustable Shading via Segmented Mesh
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Solution Overview
Problem
Conventional door curtains in vehicles either block light completely or not at all, failing to provide a selective shading option, which is inconvenient for occupants, especially during high UV index days when excessive light entry increases interior temperature and poses health risks.
Innovation Solution
A door curtain assembly featuring a fixed curtain and a variable curtain with a double structure of mesh and shading portions, where the variable curtain's height can be adjusted using a control switch and shade bar, allowing for either complete or partial shading by overlapping mesh and shading sections.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a conventional door curtain is used to block light completely, then light blocking effectiveness is improved, but shading adjustability deteriorates
Solution Approach 1:
The door curtain is divided into multiple sections with different transparency characteristics (transparent section and translucent section). This segmentation allows the curtain to provide different levels of light blocking in different areas, enabling both complete light blocking when needed and partial shading when desired, thus resolving the contradiction between light blocking effectiveness and shading adjustability.
2Adaptability or versatility
If a conventional door curtain is used to allow full light entry, then shading flexibility is improved, but light blocking effectiveness deteriorates
Solution Approach 1:
The curtain's segmented design with transparent and translucent sections enables flexible shading control. Users can position the translucent section to achieve partial shading while maintaining flexibility in adjustment, or use the transparent section for complete light blocking, thus maintaining both shading flexibility and light blocking effectiveness.
3Device complexity
If a single-structure curtain is used, then device complexity is reduced, but shading functionality deteriorates
Solution Approach 1:
The curtain incorporates multiple sections with different optical properties (transparent and translucent sections) within a single curtain structure. This segmentation enables diverse shading functionality including complete light blocking and partial shading without requiring multiple separate curtains, thus achieving enhanced shading functionality while maintaining relatively simple device structure.
Solution Approach 2:
The patent merges multiple functional sections (transparent section, translucent section) into a single integrated door curtain assembly. This combining approach provides diverse shading capabilities in one unit, avoiding the complexity of multiple separate curtain systems while maintaining comprehensive shading functionality.
Data Source
AI summary
A door curtain assembly configured for adjusting shading amount may include a fixed curtain wound around a fixed curtain take-up roll mounted at a door trim, a variable curtain wound around a variable curtain take-up roll mounted at the door trim, and a shade bar coupled to both a first end of the fixed curtain and a first end of the variable curtain such that the fixed curtain and the variable curtain are unwound and pulled up when the shade bar moves upward, wherein an upward position of the variable curtain can be adjusted.