Double Fabric Shading Vane Angle Adjustment via Friction Restraint
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Solution Overview
Problem
Conventional double fabric window shadings can only adjust the angle of vanes when the shading is fully deployed, limiting flexibility and functionality.
Innovation Solution
An apparatus and method that utilize a friction surface to selectively restrain the movement of one facing of the window shading, allowing for adjustment of the vane angle even when the shading is not fully deployed by rotating the fabric supply roller while the first facing is restrained.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the shading is allowed to move freely during deployment, then the operation is simple and ease of operation is improved, but the ability to adjust vane angle at partial deployment positions is lost
Solution Approach 1:
A friction surface is introduced as an intermediary element between the first facing and the fabric supply roller. This friction surface can be selectively engaged to restrain the first facing during rotation, enabling vane angle adjustment at partial deployment positions without complicating the overall operation mechanism
2Adaptability or versatility
If the first facing is restrained during rotation, then vane angle adjustment at partial deployment positions is enabled, but the device complexity increases
Solution Approach 1:
The friction surface acts as a simple intermediary component that can be selectively engaged with the first facing. This approach enables vane angle adjustment functionality without requiring complex mechanical restraint mechanisms, thereby minimizing the increase in device complexity
Solution Approach 2:
The friction surface utilizes friction between its surface and the first facing to achieve restraint, rather than requiring additional active restraint mechanisms. This self-service approach to restraint reduces the complexity of the overall device
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables adjustable vane angles in double fabric window shadings at various deployment positions, enhancing user control and functionality beyond conventional limitations.
Implementation Method 1
a friction surface positioned to selectively engage the first facing and restrain substantially downward movement of the first facing during substantially downward movement of the second facing, and to allow substantially upward movement of the first facing during substantially upward movement of the second facing
Data Source
AI summary
Embodiments of the present disclosure provide an apparatus and method to adjust the angle of a double fabric shading by restraint of a facing in the double fabric shading. The apparatus may include a friction surface configured to selectively restrain movement of a first facing of a window shading. The first facing is coupled to a fabric supply roller of the window shading at a first position on an outer surface of the fabric supply roller and coupled to a second facing of the window shading through a plurality of vanes extending between the first facing and the second facing. Rotating the fabric supply roller of the window shading to extend or retract the second facing, while restraining movement of the first facing with the friction surface, adjusts an angular position of the plurality of vanes.