Screen Casing Fastening Assembly with Adjustable Height Brackets

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Solution Overview

Problem

Existing fastening systems for screen casings of large dimensions (above 3 meters) are not always suitable, leading to inadequate security, bending issues, and difficulty in securing the screen casing to structures under various circumstances, especially when direct fastening is not possible or energy considerations are a factor.

Innovation Solution

A fastening assembly with adjustable height brackets that can be used universally across different screen casings and circumstances, allowing for secure attachment to windows or doors by rotating and repositioning brackets to accommodate various mounting scenarios, using hook-on elements and elongate slots for precise alignment and screw fixation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If multiple different fastening means are provided for different screen casing types and circumstances, then the security and suitability of fastening is improved, but the device complexity and number of components increases

Engineering Contradiction:
Improvefastening securityVSAvoidnumber of fastening means
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The fastening bracket is designed to perform multiple functions: it can be mounted on different surfaces (wall or window frame), accommodate different screen casing positions, and provide secure fastening in various circumstances. This single universal bracket replaces the need for multiple specialized fastening means, resolving the contradiction between fastening security and device complexity

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The fastening bracket incorporates adjustable elements that allow it to adapt dynamically to different mounting scenarios. The bracket can be positioned at various heights and angles, and the elongate slot allows for flexible positioning, enabling one bracket design to serve multiple fastening requirements without compromising security

Inventive Principle:
Principle #15Dynamics

2Stability of the object's composition

If the screen casing is fastened rigidly to prevent bending, then the structural stability is improved, but the adaptability to different mounting circumstances deteriorates

Engineering Contradiction:
Improvescreen casing rigidityVSAvoidfastening flexibility
Core Design Contradiction:
Stability of the object's compositionVSAdaptability or versatility

Solution Approach 1:

The fastening system is divided into separate components: the fastening bracket, the elongate slot, and the screw. This segmentation allows the bracket to provide rigid support for screen casing stability while the elongate slot and adjustable mounting positions provide flexibility for different installation circumstances. The rigid bracket structure prevents bending, while the segmented design enables adaptability

Inventive Principle:
Principle #1Segmentation

Data Source

PatentEP4453347B1Assembly of a screen device and fastening means for fastening a screen casing of this screen device
Publication Date: 2025.10.01 RENSON NV
  • EP4453347B1 patent drawingFigure 1~4
  • EP4453347B1 patent drawingFigure 5~7
  • EP4453347B1 patent drawingFigure 8~10

AI summary

The present invention relates to an assembly of - a screen device (1), comprising • a screen (3) which is able to be rolled up onto and unrolled from a screen roller (2) in order to cover a window or a door (5); and • a screen casing (4, 4', 4'') in which this screen roller (2) is accommodated so as to be able to rotate; and - fastening means for fastening the screen casing (4, 4', 4'') to the window or door (5) or a structure (7) in which said window or door (5) is mounted, comprising: • a first fastening bracket (8) for fastening to the screen casing (4, 4', 4''); • a second fastening bracket (9, 9', 9'') for fastening to the window or door (5) or the structure (7), which is fastenable to the first fastening bracket (8); and • adjustment means for adjusting the mutual fastening of these fastening brackets (8, 9, 9', 9'') in a height direction (H).