Roller Blind Installation Frame for Light-Proof Window Sealing
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Solution Overview
Problem
Existing window screen assemblies face challenges in accurately fitting and completely shutting out light due to dimensional mismatches and gaps between the screen and the window opening, which prevents a light-proof seal.
Innovation Solution
A screen assembly with adjustable mounting brackets and flanges on the support member and guide tracks, along with a resilient sealing system and locking devices, ensures a flush fit and light-proof seal by accommodating dimensional irregularities and allowing for precise positioning and secure attachment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the roller width is accurately matched to the window opening width, then the screen assembly can be mounted within the window opening, but gaps between the screen sides and window opening sides prevent complete light shutout
Solution Approach 1:
A resilient sealing member is introduced as an intermediary element between the screen assembly and the window opening. This sealing member fills the gaps between the screen sides and the window opening sides, preventing light leakage while allowing the roller width to be accurately matched to the window opening width for proper mounting.
Solution Approach 2:
The resilient sealing member changes its physical state (compresses or deforms) to adapt to dimensional variations and gaps. By utilizing the elastic properties of the sealing member, it can accommodate slight mismatches in dimensions while maintaining continuous contact to block light effectively.
2Adaptability or versatility
If mounting brackets are made adjustable in vertical position, then the support member can be mounted to accommodate dimensional irregularities, but the device complexity increases
Solution Approach 1:
The mounting bracket is divided into two separate parts: a first part that attaches to the window opening and a second part that engages with the support member. This segmentation allows each part to be optimized independently and simplifies the adjustment mechanism, as the vertical positioning can be achieved through simple relative movement between the two parts rather than a complex adjustable structure.
Solution Approach 2:
The second part of the mounting bracket is designed to be mounted on the first part in a nested configuration, where the second part can be positioned at multiple vertical locations along the first part. This nesting arrangement provides adjustability while maintaining a compact and simple overall structure.
3Object-affected harmful factors
If flanges are added to the support member to obscure gaps, then light shutout is improved, but the manufacturing complexity increases
Solution Approach 1:
The flange is merged with the support member as an integral component rather than a separate attachment. This combining approach ensures that the light-blocking function is built into the support member itself, eliminating the need for additional separate parts while maintaining manufacturing simplicity through a single fabrication process.
Data Source
AI summary
A screen assembly for a window comprising a screen supported by an elongate support member adapted to be mounted in an upper region of the window opening, a pair of mounting brackets being provided for attachment to respective sides of the window opening adjacent the top face of the window opening, each end of the elongate support member having means for engaging a respective mounting bracket, whereby the mounting brackets may be attached the sides of a window opening such that the support member may be engaged onto the mounting brackets to mount the support member in the window opening.