Cellular Shade Rail Guided by Flexible Tape for Precise Positioning
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Solution Overview
Problem
Conventional coverings for architectural openings, such as sliding glass doors, lack flexibility and control in terms of positioning and aesthetic appeal, limiting their functionality and user preference.
Innovation Solution
A transversely collapsible cellular shade system with a movable vertical rail guided by a flexible metal tape, allowing the shade to be positioned at any location within the opening, providing both extended and retracted positions while maintaining structural rigidity and aesthetic appeal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional coverings are used for architectural openings, then the structure is simple, but the positioning flexibility and control are limited
Solution Approach 1:
The shade is divided into multiple cellular sections that can independently collapse and expand, allowing the covering to be positioned at various locations while maintaining structural integrity. The flexible metal tape is also segmented with multiple engagement points along its length, enabling selective attachment to the rail at different positions.
Solution Approach 2:
The system transitions from a static conventional covering to a dynamic adjustable system where the shade can be moved along the rail and positioned at any location. The flexible metal tape allows for smooth, continuous movement while maintaining control, enabling the covering to adapt to different positioning requirements.
2Ease of operation
If a movable rail system is implemented for positioning, then positioning control is improved, but the device complexity increases
Solution Approach 1:
The flexible metal tape acts as an intermediary element between the movable rail and the shade, providing a simple yet effective mechanism for positioning control. The tape's ability to flex and engage at multiple points allows for easy adjustment without requiring complex motors, sensors, or control systems.
Solution Approach 2:
The flexible metal tape functions as a thin, adaptable component that provides positioning control through its physical properties rather than mechanical complexity. Its flexibility allows it to conform to the rail while maintaining engagement, enabling smooth movement and precise positioning without heavy or complex mechanisms.
3Volume of moving object
If the shade is made retractable, then space efficiency is improved, but the structural rigidity may be compromised
Solution Approach 1:
The cellular shade structure allows the fabric to collapse into a compact, nested configuration when retracted, similar to nested dolls. The vertical cells fold into each other, creating a neat stack that minimizes retracted volume while maintaining the ability to extend fully when needed, preserving structural rigidity in the extended position.
Solution Approach 2:
The system combines different materials with complementary properties: the cellular fabric provides flexibility and collapse capability for compact retraction, while the rigid rail and flexible metal tape provide structural support and positioning control. This composite approach allows the shade to be both retractable and structurally sound.
Data Source
AI summary
A covering for an architectural opening includes a fabric adapted to be extended across the opening or retracted adjacent one side of the opening. The fabric has one fixed edge along one side of the opening and an opposite movable edge. The movable edge is guided by a flexible metal tape disposed in a generally Z-shaped configuration that extends slidably along the movable edge of the fabric and in opposite perpendicular directions at opposite ends of the movable edge for variable lengths.