Metal Mesh Sunshield Tensioning for Wind-Stable Facade Attachment
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Solution Overview
Problem
Existing metal mesh sunscreens for buildings face issues with significant wind-induced stresses leading to plastic deformation or destruction, and there is a need for a method to easily adjust the tension intensity for improved stability.
Innovation Solution
A method and device using elastically deformable compression springs to tension the metal mesh screen, with a visual evaluation system to ensure appropriate tension, and optionally remote monitoring, allowing for even distribution and adjustment of tension along the screen edges.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If metal mesh sunscreen is attached to building façade to provide shading, then light transmission and shading function are improved, but wind-induced stresses cause plastic deformation or destruction
Solution Approach 1:
The patent applies preliminary tensioning to the metal mesh sunscreen before it is exposed to wind loads. Tensioning elements are used to pre-stress the mesh, creating initial tension that counteracts wind-induced stresses. This preliminary action prepares the structure to resist future mechanical stresses from wind, preventing plastic deformation and destruction while maintaining the openwork shading design.
2Strength
If tensioning elements are added to stabilize the screen against wind stress, then structural strength is improved, but device complexity increases
Solution Approach 1:
The patent employs flexible tensioning elements such as cables, ropes, or elastic bands that can be easily integrated with the metal mesh sunscreen. These flexible elements provide the necessary tensile strength to counteract wind loads without requiring complex rigid support structures. The simplicity of these flexible components minimizes added complexity to the overall attachment system while effectively stabilizing the screen.
3Measurement precision
If visual evaluation system with movable indicator is implemented to monitor tension, then measurement precision is improved, but device complexity increases
Solution Approach 1:
The patent incorporates a visual evaluation system where a movable indicator changes position or color based on the tension intensity in the sunscreen. This indicator is linked to the tensioning elements and provides immediate visual feedback about the tension state. The use of color changes or positional indicators creates a simple, intuitive measurement system that achieves high measurement precision without requiring complex electronic sensors or data processing systems.
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
The solution provides secure attachment and easy tension adjustment, ensuring the metal mesh screen remains stable under wind stress, with visual feedback for correct tensioning and optional remote monitoring for enhanced control.
Implementation Method 1
tensioning the screen by exerting a traction on the traction element, the traction on the traction element being provided by an elastically deformable compression spring
Data Source
AI summary
The invention relates to a method of attaching a wire mesh sunshield screen to a building in which the screen is connected to the building by at least one traction element (119, 120, 121) and the screen is tensioned by exerting a traction on the traction element. The traction on the traction element is provided by a compression spring (30) and the intensity of the traction on the traction element is evaluated by an evaluation device (500, 501, 1550) comprising an opaque mask (1550) and a movable visual indicator (500, 501) which is movable relative to the opaque mask (550) as a function of the compression of the spring (30).