Roller Blind Mounting Guide Flange Spacer Adjustment
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Solution Overview
Problem
Existing mounting devices for roller shutters lack adjustability in non-standard spaces, often resulting in incorrect positioning and difficult assembly due to limited adjustment capabilities and the need for drilling, which complicates the installation process.
Innovation Solution
A device featuring a guide flange connected to a flange via joining means comprising spacers and projecting elements, allowing for precise adjustment and easy assembly by embedding or clipping mechanisms, ensuring correct positioning and adaptability to varying space sizes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If serrated tabs or notched returns are used to connect the guide flange to the end piece, then adaptability to different reserved space sizes is improved, but positioning precision deteriorates due to high risk of positioning error and askew placement
Solution Approach 1:
A positioning element with a positioning face is introduced as an intermediary component between the end piece and the guide flange. This positioning element ensures accurate alignment and spacing by providing a dedicated mating surface that guides the assembly, eliminating the positioning errors inherent in direct connection methods like serrated tabs or notched returns.
Solution Approach 2:
The positioning element is designed to be self-aligning through its positioning face geometry, which automatically guides the end piece into the correct position relative to the guide flange during assembly. This self-service mechanism eliminates the need for complex alignment procedures or additional adjustment operations.
2Strength
If screws passing through the end piece are used to assemble the guide flange, then connection strength is improved, but device complexity increases due to drilling requirements and additional components
Solution Approach 1:
The positioning function is extracted from the connection element itself and implemented through a dedicated positioning element with a positioning face. This separation allows the connection to be achieved through simple embedding or clipping actions rather than requiring drilling and screw assembly, thereby reducing device complexity while maintaining connection strength.
Solution Approach 2:
The complex mechanical assembly process involving drilling, screw insertion, and tightening is replaced by a simpler embedding or clipping mechanism. The positioning element's geometry provides the necessary mechanical interlocking and strength without requiring threaded holes or additional fastening operations.
3Device complexity
If the guide flange is directly connected to the end piece without intermediate positioning elements, then device complexity is reduced, but positioning precision and ease of assembly deteriorate
Solution Approach 1:
The positioning element serves as a mediator that simplifies the assembly operation by providing a self-aligning positioning face. This intermediate component enables easy insertion and positioning of the end piece relative to the guide flange through a single embedding or clipping action, greatly improving ease of operation despite adding one component to the structure.
Data Source
Figure 1
Figure 2A
Figure 2B~2C
AI summary
The mounting for the roller of roller blinds in a casing (2) comprises a guide plate (1) with a central aperture, through which the roller shaft fits. Lugs (4) on the corners of this fit into corresponding mountings on an end plate (3), spacers (6) between them allowing adjustment to ensure correct orientation of the roller.