Multi-Panel Window Covering for Adjustable Light Control
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Solution Overview
Problem
Existing cordless window coverings with flexible panels, such as woven wood shades, do not provide sufficient light filtering or blocking capabilities, as they allow light to pass through the woven material and gaps, which may not meet the aesthetic and functional requirements for varying light control.
Innovation Solution
A window covering system with multiple panels and lift cords allows for adjustable light blocking and filtering characteristics by manipulating the position of panels with different light blocking properties, using a combination of lift cords and rails to create varying zones of light control, including the use of a second and third panel with distinct light blocking characteristics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If a flexible woven shade panel is used, then aesthetic appeal is improved, but light blocking capability deteriorates
Solution Approach 1:
The window covering is divided into multiple independently controllable panels (first panel with light filtering characteristics, second panel with light blocking characteristics, and optionally third panel). Each panel can be positioned separately to achieve different light control configurations while maintaining the aesthetic woven appearance of the first panel.
Solution Approach 2:
Different regions of the window covering have different light control properties. The first panel provides light filtering with aesthetic appeal, while the second panel provides light blocking. By locally positioning these different panel types in various configurations, both aesthetic and light blocking requirements can be satisfied in different areas.
2Adaptability or versatility
If multiple panels with different light blocking characteristics are added, then light control versatility is improved, but device complexity increases
Solution Approach 1:
Each panel is equipped with its own lift cord, allowing any panel to be independently raised or lowered. This universal control mechanism applies to all panels regardless of their light blocking characteristics, simplifying the overall control system while enabling versatile light control configurations.
Solution Approach 2:
The panels are designed to be dynamically repositionable along the window opening. Each panel can be moved to different positions independently, allowing the system to adapt to various light control needs throughout the day or season without requiring a complex fixed structure.
Data Source
AI summary
A window covering having a flexible panel and a first lift cord for raising the flexible panel. A second panel is at least partially coextensive with the flexible panel and a second lift cord is provided for raising the second panel. The flexible panel may have an upper edge and a lower edge where the upper edge is connected to a head rail and the lower edge is disposed below the head rail. The second lift cord may raise the upper edge of the second panel. In one embodiment a third panel at least partially coextensive with a portion of the flexible panel and a third lift cord for raising the top edge of the third panel are provided. The light blocking characteristic of the blind is changed by the placement of the panels.