Roller Shade Lateral Repositioning for Non-Standard Frame Coverage
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Solution Overview
Problem
Conventional roller shades often face challenges in uniformly covering non-standard shapes and sizes due to restricted lateral movement, resulting in clearance issues when mounted in areas with non-uniform frames, such as recreational vehicle windows.
Innovation Solution
The implementation of a roller shade system that includes a track and a traveling member, allowing the shade to automatically reposition laterally while being extended or retracted, using a spiral track or guide system to adjust its position along the length of the shade, enabling coverage of various shapes and sizes by moving the shade closer to one end when extended.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the roller shade is mounted in non-standard frames with non-uniform shapes, then the shade can cover irregularly shaped areas, but the shade experiences clearance issues due to restricted lateral movement
Solution Approach 1:
The roller shade system incorporates a lateral repositioning mechanism that enables the shade to dynamically adjust its horizontal position along the roller tube. The traveling member moves along a track as the shade extends or retracts, automatically repositioning the shade laterally to maintain optimal coverage alignment, thereby resolving the contradiction between adaptability to irregular shapes and ease of operation through lateral movement capability
2Area of moving object
If the roller shade is extended to cover larger areas, then the coverage area increases, but the lateral positioning accuracy decreases due to clearance issues
Solution Approach 1:
The patent introduces a traveling member as an intermediary component between the shade and the roller tube. This traveling member engages with a track system and provides lateral repositioning capability, allowing the shade to maintain precise lateral positioning even when extended to cover larger areas. The intermediary mechanism decouples the extension motion from lateral positioning, resolving the contradiction between increased coverage area and maintained positioning accuracy
3Device complexity
If the roller shade uses a fixed lateral position, then the device complexity is reduced, but the ability to cover non-standard frames is compromised
Solution Approach 1:
The roller shade system employs a self-service lateral repositioning mechanism where the traveling member automatically adjusts the shade's lateral position through its engagement with the track system during extension and retraction cycles. This self-adjusting capability provides adaptability to non-standard frames without requiring complex external control systems or additional actuators, thereby resolving the contradiction between device complexity and adaptability to varied frame configurations
Data Source
AI summary
A roller shade may be retracted and extended. In various implementations, when a roller shade is extended it may be laterally repositioned. The roller shade may include a track and a travelling member.