Vertical Screen Winding with Smoothing Edge to Prevent Creases
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing screen winding systems are inadequate for rewinding large screens in a vertical orientation, leading to surface irregularities and limitations in redeployment, especially for high-gain screens that require preservation of quality and compactness for transportation.
Innovation Solution
A vertical screen winding system incorporating a rotatable tube with a smoothing edge feature that prevents creases, utilizing a tensioning rod and foam sheets for alignment and protection, allowing the screen to be wound onto the tube without forming wrinkles or folds, and enabling redeployment from a compact state.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If traditional screen winding methods are used, then the screen can be wound up, but surface irregularities such as wrinkles, folds, and creases are formed on the screen surface
Solution Approach 1:
A smoothing edge feature is introduced as an intermediary element between the screen and the winding tube. This smoothing edge acts as a mediator that guides the screen material over the tube surface while preventing the formation of wrinkles and folds, thus resolving the contradiction between achieving high surface quality and simplifying the winding process
Solution Approach 2:
The tube is designed with a specific local feature (smoothing edge) at the critical interface where the screen contacts the tube. This localized quality improvement at the contact surface prevents surface irregularities without requiring the entire winding system to be complex, thus improving screen surface quality while maintaining ease of manufacture
2Duration of action of stationary object
If large screens are made for permanent installation, then the screen can be installed in place for decades, but the screen cannot be rewound or redeployed at later times
Solution Approach 1:
The system transforms the screen from a static permanent installation to a dynamic reusable component. The vertical winding mechanism allows the screen to be easily deployed and rewound multiple times, providing adaptability while maintaining the ability to remain installed for extended periods when needed
3Area of stationary object
If screen size increases from ten-feet to one hundred-feet wide, then the screen can accommodate larger audiences, but the wind-up system becomes larger, heavier and more difficult to transport and handle
Solution Approach 1:
The system transitions from horizontal winding to vertical winding, changing the dimensional orientation of the screen roll. This vertical orientation allows the screen to be compacted in a space-efficient manner that reduces the footprint and weight handling requirements during transport, while still accommodating large screen areas
4Ease of operation
If the screen is wound horizontally, then the winding process is simple, but the screen cannot be efficiently transported and redeployed at multiple locations
Solution Approach 1:
The system changes the winding direction from horizontal to vertical orientation. This dimensional change enables the screen to be compacted in a way that facilitates efficient transport and redeployment at multiple locations, while the operation remains relatively simple through the use of a rotatable tube mechanism
Data Source
AI summary
A system for winding a screen vertically is provided. The system can include a tube and a smoothing edge feature, such as a tensioning rod. The tube can rotate about a vertical axis and draw the screen over the smoothing edge feature to cause the screen to wind up onto the tube that is positioned vertically.