Roller Shade Lateral Repositioning for Irregular 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 unique frames, such as recreational vehicle windows.
Innovation Solution
The roller shade system incorporates a track and traveling member mechanism that allows the shade to automatically reposition laterally while being extended or retracted, enabling it to adjust its position along the length and cover various shapes by using a spiral track, recesses, and protrusions, or guides, facilitating the mounting on non-uniform frames.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the roller shade is mounted in areas with unique frames (non-standard shapes and sizes), then the roller shade can cover irregularly shaped areas, but the roller shade experiences clearance issues due to restricted lateral movement
Solution Approach 1:
The roller shade system transitions from a static mounting position to a dynamic repositioning system. The shade is coupled to a traveling member that moves along a track, allowing the shade to automatically adjust its lateral position during vertical extension and retraction. This dynamic adjustment enables the shade to maintain proper coverage on irregularly shaped frames without clearance issues.
Solution Approach 2:
A track and traveling member mechanism is introduced as an intermediary between the fixed mounting structure and the movable shade. The track provides a guided path for lateral repositioning, while the traveling member transfers the shade between different lateral positions. This intermediary system enables smooth lateral adjustment without direct manual intervention.
2Adaptability or versatility
If the roller shade uses a fixed lateral position, then the structure is simple, but the roller shade cannot adjust to cover various shapes and sizes
Solution Approach 1:
The track and traveling member mechanism serves multiple functions: it guides lateral movement, enables automatic repositioning during vertical operation, and adapts to various frame shapes and sizes. This multi-functional design allows a single system to handle diverse installation scenarios without requiring completely different mechanisms for each application.
Solution Approach 2:
The roller shade system performs self-repositioning through the interaction between the traveling member and the track. As the shade is extended or retracted vertically, the mechanism automatically adjusts the lateral position without requiring external control or manual intervention. The system uses its own operational movements to trigger the repositioning action.
3Reliability
If the roller shade is extended or retracted vertically, then the shade provides light filtering and privacy, but the lateral position remains fixed causing clearance issues
Solution Approach 1:
The vertical extension/retraction function and the lateral repositioning function are merged into a single coordinated operation. The traveling member is coupled to the shade such that vertical movement automatically triggers lateral adjustment through the track mechanism. This combination ensures that the shade maintains proper positioning while performing its primary light filtering and privacy functions.
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.