Plastered Roller Shading System with Detachable Retaining Element
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Solution Overview
Problem
Existing shading systems, particularly external roller blinds, face difficulties in removing the winding shaft with guide rails and roller blind box plastered in, especially when the curtain is almost or completely wound up, due to the inner clear distance constraints and interference with the plaster.
Innovation Solution
The shading system incorporates a guide with a rear wall and recess for the retaining element, allowing the winding shaft to be pulled out downwards in the closing direction of the curtain, enabling easy removal even when the guide rails and roller blind box are plastered, using a clamping screw for secure detachment and a deflector disk to prevent curtain edges from getting caught.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the guide rails and roller blind box are plastered in, then the aesthetic appearance and integration into the building structure are improved, but the winding shaft cannot be removed for maintenance
Solution Approach 1:
The guide is divided into a fixed part (guide body with rear wall) and a movable part (retaining element that can be detached). This segmentation allows the guide rails and roller blind box to remain plastered in for aesthetic purposes, while the detachable retaining element provides access to the winding shaft for maintenance without requiring removal of the plastered structures.
Solution Approach 2:
The retaining element acts as an intermediary component between the guide and the winding shaft. It can be detached to allow removal of the winding shaft while the guide itself remains in place within the plastered structure, thus mediating between the need for aesthetic integration and maintenance accessibility.
2Ease of operation
If the inner clear distance between guide rails is reduced to accommodate the curtain width, then the curtain can be properly guided, but the winding shaft becomes difficult to remove when the curtain is fully wound
Solution Approach 1:
The retaining element is designed to be movable within the guide's rear wall recess. When maintenance is needed, the retaining element can be dynamically repositioned or removed from the recess, creating sufficient space to extract the winding shaft even when the curtain is fully wound, thus resolving the conflict between compact guidance and maintenance accessibility.
3Ease of repair
If the winding shaft is removed towards the front or guide rails are dismantled, then the winding shaft can be accessed, but the guide rails and roller blind box cannot be plastered over
Solution Approach 1:
The guide system is segmented into the permanent guide body (which remains plastered in) and the removable retaining element. This allows the winding shaft to be accessed by simply removing the retaining element rather than dismantling the entire guide rail system, thus maintaining aesthetic integration while enabling maintenance.
Data Source
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AI summary
The invention relates to a shading system for an architectural opening, such as a window or a door, comprising: a housing (44); a blind (47); a winding shaft (22) by means of which the blind (47) can be moved between an open position and a closed position; at least one retaining element (21) detachably held on a guide (20) in the housing (44), by means of which the winding shaft (22) is supported at its end faces in the housing (44); and guide rails (46) extending in the opening and closing direction of the blind (47), in which at least one front edge of the blind (47) in the closing direction is guided.To create a shading system in which the winding shaft can be easily removed even with embedded guide rails and roller shutter boxes, the shading system according to the invention is characterized in that the retaining element (21) can be pulled out of the associated guide (20) in the closing direction of the blind (47). The invention further relates to a building with such a shading system and a method for dismantling it.