Nested Roller Architectural Shade With Dual Independent Control
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Solution Overview
Problem
Existing architectural opening coverings with separate rollers for supplemental functions or appearances increase size and weight, requiring additional control cords and mechanisms, which complicates operation and aesthetics.
Innovation Solution
A dual roller system where a first shade is wrapped around an outer roller and a second shade is wrapped around an inner roller, both sharing a common axis, with a lock mechanism allowing independent rotation and retraction, enabling a single control mechanism to manage both shades for extended positions and blackout functionality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If separate rollers are used for supplemental functions or appearances, then functional versatility is improved, but device complexity and size increase
Solution Approach 1:
The patent combines multiple roller functions into a single integrated roller assembly. The roller includes both a first shade for light control and a second shade for blackout functionality, both operable from one head rail unit. This merging eliminates the need for separate roller mechanisms, reducing device complexity while maintaining functional versatility.
Solution Approach 2:
The single roller assembly is designed to perform multiple functions: it can provide light control with the first shade, complete blackout with the second shade, and aesthetic coverage when both shades are extended. This multi-functional design allows one device to replace what would traditionally require separate specialized rollers.
2Adaptability or versatility
If separate rollers are used for supplemental functions or appearances, then functional versatility is improved, but weight increases
Solution Approach 1:
By merging the second shade and its roller into a single integrated assembly with the first shade, the patent eliminates the weight of separate roller mechanisms, mounting brackets, and control systems. The combined structure uses shared components like a single head rail, common operating mechanisms, and integrated end caps, significantly reducing overall weight while maintaining both light control and blackout functionalities.
3Adaptability or versatility
If additional control cords and operating mechanisms are added, then functional versatility is improved, but ease of operation deteriorates
Solution Approach 1:
The patent merges the control systems for both shades into a single operating mechanism within one head rail. A single control cord or motorized system can operate both the first shade for light control and the second shade for blackout, eliminating the complexity of coordinating multiple independent control systems and improving ease of operation.
Solution Approach 2:
The universal operating mechanism is designed to control multiple shade functions through a single interface. Whether using a pull cord, wand, or motorized system, the user interacts with one control system to achieve different shading effects, maintaining simplicity while providing versatile functionality.
4Adaptability or versatility
If additional control cords and operating mechanisms are added, then functional versatility is improved, but aesthetics deteriorates
Solution Approach 1:
By combining both shades and their operating mechanisms into a single head rail assembly, the patent creates a clean, unified aesthetic profile. The integrated design eliminates the visual clutter of multiple separate rollers, brackets, and control cords, presenting a sleek single-unit appearance that maintains architectural aesthetics while providing multiple shade functions.
Data Source
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AI summary
A covering for an architectural covering is provided. The covering may include a rotatable outer roller, a rotatable inner roller, a first shade secured to the outer roller, and a second shade secured to the inner roller. The outer roller may define an elongated slot extending along a length of the outer roller and opening to an interior of the outer roller. The inner roller may be received within the outer roller and may define a central longitudinal axis. The first shade may be retractable onto and extendable from the outer roller. The second shade may extend through the elongated slot and may be retractable onto and extendable from the inner roller. The elongated slot may be substantially horizontally aligned with the central longitudinal axis of the inner roller when the first shade is in a fully extended position.