Roman Shade Rolling Spool Multi-Step Engagement Mechanism
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Solution Overview
Problem
Existing window curtain systems lack the ability to provide consumers with precise control over the opaqueness and light transmission, as they typically offer only binary options for sunlight blocking or allowing light, failing to cater to user preferences for varying light conditions.
Innovation Solution
A roller-shade system with a multi-step engagement mechanism between the rolling spool screen and the front fabric, allowing the bottom position of the spool screen to be adjusted relative to the Roman shade fabric, enabling users to control the thickness and opaqueness of the curtain, thereby offering 'day-and-night' light selection options.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a traditional binary curtain system is used, then the structure is simple, but the light control precision is poor
Solution Approach 1:
The curtain system is segmented into multiple functional layers: a Roman shade with foldable fabric panels and a separate rolling spool screen that can be positioned at different heights. This segmentation allows independent control of each layer, enabling precise light control by adjusting the relative positions of the fabric and spool screen to create varying thicknesses and opaqueness levels.
2Adaptability or versatility
If a multi-step engagement mechanism is added, then the light control precision is improved, but the device complexity increases
Solution Approach 1:
The rolling spool screen is nested within or adjacent to the Roman shade structure, allowing it to be positioned at multiple engagement points along the fabric. This nesting arrangement enables the spool screen to interact with different portions of the Roman shade at various heights, creating multiple engagement positions that provide diverse light control options without requiring a completely separate complex mechanism.
Data Source
AI summary
Present invention teaches to make a Roman shade window curtain where a sliding locking mechanism is provided at the bottom beam of the rolling spool at the back side of the Roman shade, where the engaging positions between the rolling spool bottom beam and the pair of auxiliary rods can be set according to user preference, by sliding the locking tubes towards the middle to move the engaging point up and down, and by sliding the licking tubes to the left and right extremities for engaging the bottom to the desired fold line on the Roman shade.