Screening arrangement with mounting brackets
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Solution Overview
Problem
Existing screening arrangements for windows require complex and error-prone installation processes, often necessitating additional fastening means like screws, which are undesirable, and there is a need for a more flexible and facilitated installation method that ensures stable engagement without these additional tools.
Innovation Solution
The screening arrangement features a set of female locking means on the mounting brackets, including recesses and inclined portions, allowing for temporary and terminal positions without the need for tools, providing a stable and reliable locking mechanism using snap locking means and resilient engagement, enabling easy and secure mounting.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If additional fastening means like screws are used to secure mounting brackets to the window frame, then the stability and reliability of the mounting is improved, but the complexity of the installation process increases and additional tools are required
Solution Approach 1:
The invention extracts and eliminates the need for additional fastening means (screws, pins, dowels) by integrating the fastening function directly into the mounting bracket structure. The L-shaped configuration with engagement protrusion and recess creates a self-contained fastening system that secures to the window frame without external fasteners, thereby reducing installation complexity while maintaining reliability
Solution Approach 2:
The mounting bracket is designed to be self-fastening through its L-shaped structure where the vertical leg engages with the window frame via a protrusion fitting into a recess. This self-service mechanism allows the bracket to secure itself without requiring separate fastening operations or additional tools, simplifying the installation process while ensuring stable mounting
2Device complexity
If a simple mounting structure without additional fastening means is used, then the installation process is simplified and becomes tool-free, but the stability and security of the mounting bracket fastening deteriorates
Solution Approach 1:
The mounting bracket is segmented into functional zones: the L-shaped configuration separates the mounting function (vertical leg engaging with frame) from the support function (horizontal leg supporting the screening device). This segmentation allows each part to perform its specific function effectively, with the engagement protrusion and recess providing stable fastening while keeping the overall structure simple and tool-free
Solution Approach 2:
The L-shaped configuration introduces asymmetry in the mounting bracket design, with the vertical and horizontal legs serving different functions. The asymmetric geometry of the engagement protrusion and recess ensures unidirectional secure fastening to the window frame, providing stability without requiring symmetric or complex fastening mechanisms
3Ease of operation
If multiple locking positions are provided for the screening device, then the flexibility and ease of installation are improved, but the complexity of the locking mechanism increases
Solution Approach 1:
The locking mechanism incorporates preliminary action through pre-positioned locking positions (first, second, and third positions) that guide the screening device through a structured installation sequence. The first locking position provides initial temporary retention, the second position provides intermediate retention, and the third position provides final secure mounting. This preliminary structuring of locking positions makes the installation process intuitive and error-proof while keeping the mechanism itself relatively simple
4Ease of operation
If temporary retention mechanisms are used to facilitate installation, then the ease of installation is improved, but the reliability of the temporary retention may be insufficient
Solution Approach 1:
The locking mechanism is designed with dynamic characteristics, allowing the screening device to be easily moved and adjusted during installation through the first and second locking positions, while providing progressively increasing retention stability. The mechanism transitions from temporary retention (first position) to intermediate retention (second position) to permanent mounting (third position), with each stage providing appropriate reliability for its function while maintaining ease of operation
Data Source
Figure 1~2
Figure 3~5
Figure 6~7
AI summary
In the screening arrangement a screening device provided with end pieces is adapted to be mounted on mounting brackets (6). Locking means are provided on the end pieces and the mounting brackets for providing engagement, between these. The locking means include mutually cooperating female and male locking means, of which the mounting brackets (6) are provided with two female locking means (12, 14) to cooperate successively with one male locking means of the respective end piece, so that it is possible to provide engagement between each end piece and the respective mounting bracket in at least two positions including a first, temporary position and a second, terminal position on the mounting bracket, when the end pieces are moved with the screening device in the third direction from the point distant from the pane to the point proximate to the pane.