Roman Shade Roller Winding Mechanism for Simplified Folding
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Solution Overview
Problem
Existing roman style shades have complex structures that increase weight and production costs, making them environmentally unfriendly and prone to winding incidents.
Innovation Solution
A roller winding roman style shade design that uses a cord, tape, or band to connect the front and rear sides, allowing sequential pulling up of the blind material to achieve a simple structure and low fabrication cost, with actuating members like cords or fabric strips to facilitate folding and unfolding.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If multiple limit devices are used to control the winding and unfolding of roman style shade, then the ease of operation is improved, but the device complexity and weight are increased
Solution Approach 1:
The patent extracts the essential function of positioning from multiple complex limit devices and implements it through a single integrated roller shade mechanism. The roller shade is designed to naturally position itself at the desired height through its winding structure, eliminating the need for separate limit devices while maintaining ease of operation.
Solution Approach 2:
The roller shade serves multiple functions simultaneously: it provides shading, automatically positions itself at the correct height, and controls the folding/unfolding of the roman style shade all through one integrated mechanism. This multi-functionality replaces what would otherwise require multiple separate devices.
2Reliability
If multiple limit devices and auxiliary rods are installed for positioning, then the reliability of positioning is improved, but the manufacturing cost and weight are increased
Solution Approach 1:
The patent removes the unnecessary auxiliary rods and limit devices from the structure. The roller shade's inherent winding mechanism provides sufficient positioning reliability without these additional components, thereby reducing manufacturing complexity and cost.
Solution Approach 2:
The roller shade mechanism is designed to be self-positioning through its own structural characteristics. As the roller winds or unwinds, it naturally maintains the correct position without requiring external limit devices or auxiliary positioning rods, achieving reliable positioning through self-service.
3Ease of operation
If more elements and components are adopted for control mechanism, then the ease of operation is improved, but the environmental friendliness is worsened
Solution Approach 1:
The patent extracts only the essential functional elements needed for operation, eliminating redundant components. By using a simplified roller shade mechanism that provides all necessary control functions, the total material consumption is reduced while maintaining ease of operation.
Solution Approach 2:
The roman style shade system is designed to operate through self-service mechanisms where the roller shade's winding action automatically controls the folding and unfolding of the blind material. This eliminates the need for additional control elements, reducing material consumption and improving environmental friendliness.
Data Source
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AI summary
A roller-shade winding roman style shade is provided. A technical feature thereof is to utilize an actuating member of a cord or a band-shaped long strip of fabric to connect a blind material and a roller shade. Thus, as the roller shade rises, the parts where the blind material and the actuating member are connected are pulled up sequentially from the bottom up, and when reaching the top end, the points where the blind material and the actuating member are connected are kept at approximately the same height, such that the roman style shade is in a retracted and folded state. The blind material of the whole roman style shade can be folded up or dropped down merely through connection of the actuating member between the blind material and the roller shade, the roller shade has diversified applications and is more flexible in use and pleasant to look at.