Low-Profile Fenestration Screen Assembly with Integrated Latch Rocker
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Solution Overview
Problem
Existing screen assemblies for fenestration systems are difficult to operate, especially when multiple pins or latches need to be manipulated to remove the screen, and they often protrude into daylight openings, compromising aesthetics and functionality.
Innovation Solution
A low-profile screen assembly with a screen latch that includes a latch rocker coupled to the screen frame, allowing for easy operation with finger pressure and minimizing profile interference, featuring a rocker anchor that pivots to unlock the screen for removal without requiring ongoing manipulation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If spring pins or butterfly latches are used to secure the screen, then the screen can be retained in the fenestration assembly, but the pins or latches protrude into the daylight opening and interrupt the clean lines of the assembly
Solution Approach 1:
The screen frame is positioned in a recess of the fenestration assembly, utilizing the depth dimension to move the screen and its retention features away from the exterior surface. This allows the screen to be secured without protruding into the daylight opening, while the retention features remain accessible from the interior side for operation.
Solution Approach 2:
Instead of having the retention features (pins or latches) protrude outward from the screen exterior, the design inverts the arrangement by positioning the screen in a recess and having the retention features engage from the interior side. This reverses the conventional approach and eliminates the protrusion problem while maintaining retention functionality.
2Reliability
If multiple spring pins or butterfly latches are used to secure the screen, then the screen is firmly retained, but multiple components must be manipulated to remove the screen
Solution Approach 1:
Multiple retention features (multiple spring pins or butterfly latches) are merged into a single integrated retention mechanism. The screen frame includes a unified retention feature that engages with the fenestration assembly at multiple points simultaneously, providing firm retention while requiring manipulation of only one component for screen removal.
3Ease of operation
If the screen frame is positioned flush with the exterior surface, then the screen is easily accessible, but the retention features protrude into the daylight opening
Solution Approach 1:
The solution utilizes the depth dimension by positioning the screen frame within a recess of the fenestration assembly. This allows the screen to remain easily accessible from the interior while the exterior profile is maintained, as the retention features engage from within the recess rather than protruding outward.
Data Source
AI summary
A fenestration assembly includes a low-profile screen assembly including a fenestration frame and a sash movably coupled with the fenestration frame. The sash includes a daylight opening having a daylight opening profile. The low-profile screen assembly is coupled with one or more of the fenestration frame or the sash. The low-profile screen assembly includes a screen panel having a screen frame coupled along one or more of the sash or the fenestration frame, and the screen frame includes a screen frame inner perimeter. A screen membrane spans the screen frame and is coupled with the screen frame. The screen frame inner perimeter is outside of the daylight opening profile.