Mesh Screen Tensioning Frame With Corrosion-Free Adjustable Clamping
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Solution Overview
Problem
Current mesh screen frame assemblies lack a secure and durable design, particularly in regions prone to intrusions or severe weather, and suffer from galvanic corrosion due to the use of different metal fasteners, and they are difficult to maintain and adjust for optimal tension.
Innovation Solution
A robust frame assembly with a U-shaped channel and clamp system that secures the mesh screen without protruding fasteners, using an adhesive for attachment and adjustable tensioning screws to apply varying tension along the screen, eliminating galvanic corrosion and enhancing security and adjustability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional fasteners are used to secure mesh screen to frame, then the screen is secured to the frame, but galvanic corrosion occurs due to contact with different metals
Solution Approach 1:
A U-shaped channel made of the same metal as the mesh screen (stainless steel) is introduced as an intermediary component between the screen and the frame. The channel is secured to the aluminum frame using fasteners, while the mesh screen is attached to the channel without direct contact between dissimilar metals. This mediator prevents galvanic corrosion while maintaining secure attachment.
Solution Approach 2:
The fasteners are extracted from direct contact with the mesh screen and relocated to only contact the U-shaped channel and frame. The mesh screen is attached to the channel using adhesive or other non-corrosive methods, removing the harmful fastener-screen contact that causes galvanic corrosion.
2Reliability
If the frame assembly is designed for secure intrusion resistance, then security is improved, but the design becomes more complex
Solution Approach 1:
The frame assembly is segmented into distinct functional components: the aluminum frame, the U-shaped channel, and the mesh screen. Each component has a specific function - the frame provides structural support, the channel provides corrosion-resistant attachment, and the screen provides security coverage. This segmentation allows for simplified manufacturing and assembly while achieving high security performance.
3Ease of operation
If uniform tension is applied across the entire screen, then installation is simplified, but regions requiring different tension levels cannot be adjusted
Solution Approach 1:
The tensioning system is made dynamic and adjustable through the use of multiple independently adjustable fasteners along the channel. Each fastener can be tightened or loosened to apply different tension levels to different regions of the mesh screen, allowing adaptation to various installation requirements while maintaining overall system integrity.
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 a more secure and durable mesh screen attachment system that prevents galvanic corrosion and allows for adjustable tension, improving resistance to intrusions and severe weather conditions while maintaining ease of installation and adjustment.
Implementation Method 1
The edge of the mesh is secured with an adhesive, which can optionally be a metal epoxy
Implementation Method 2
The fasteners are tightened in order to apply tension to the screen
Data Source
AI summary
The invention relates to a screen tensioning system having a mesh screen and a U-shaped channel that engages an edge of the mesh screen. A clamp engages the U-shaped channel and the mesh screen. A frame having a substantially H-shaped cross section, wherein parallel side members converge to define a longitudinal slot permit the mesh screen to extend through the longitudinal slot, yet the clamp remains secured within the frame. A plurality of fasteners secure the clamp to the frame and are tightened to apply varying degrees of local tension to the screen. Preferably, no fasteners are used to secure the screen to the clamp.