Roller Shutter Casing Segmentation and Sealing
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Solution Overview
Problem
The existing solutions for integrating roller shutter boxes into building masonry face challenges such as aesthetic issues, restrictive installation, and difficulties in achieving a tight seal between the masonry and the casing, particularly due to tolerances in construction and the need for precise adjustments.
Innovation Solution
The roller shutter box design includes a first part attached above the carpentry and a second part extending into a recess in the masonry, featuring a covering profile with a support strip that can be applied directly or through a sealing gasket to the masonry's peripheral edges, and lateral covers with support strips to ensure sealing and alignment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the roller shutter box extends from the internal side of the construction, then the box can be installed without modifying the masonry, but the casing extends widely and unattractively inside the dwelling and restricts installation of blinds or curtains
Solution Approach 1:
The roller shutter box is divided into two distinct parts: a first part that extends into the dwelling and a second part that extends into the masonry recess. This segmentation allows the box to be aesthetically integrated into the wall while maintaining installation simplicity.
Solution Approach 2:
The solution moves the box extension problem from the internal space dimension to the external masonry dimension by creating a recess in the wall. This dimensional shift hides the box extension outside the living space while keeping the installation process straightforward.
2Shape
If a recess is provided in the masonry to accommodate the box, then the aesthetics are improved and the box width can be adapted, but difficulties are encountered in guaranteeing the seal between the masonry and the casing
Solution Approach 1:
A peripheral seal is introduced as an intermediary element between the roller shutter box and the masonry recess. This seal ensures reliable sealing while allowing for construction tolerances and maintaining the aesthetic appearance of the integrated design.
Solution Approach 2:
The sealing solution accommodates variations in gap width through the use of compressible or adjustable sealing materials that can adapt to different dimensional parameters resulting from construction tolerances.
3Reliability
If an angle iron is used to provide peripheral sealing, then sealing can be achieved, but fitting is difficult and the box location can be modified by the expansive joint strip
Solution Approach 1:
The peripheral seal is designed as a simple, easily replaceable component that can be quickly installed and adjusted during construction, replacing the complex angle iron system. This seal can be readily fitted without specialized tools or complex procedures.
4Shape
If the box is integrated into the masonry during construction, then aesthetics are improved and sealing is facilitated, but the structural work operations become constraining and installation time increases
Solution Approach 1:
The masonry recess is prepared during the construction phase as a preliminary action, allowing the roller shutter box to be simply inserted and sealed later without requiring complex structural operations or increasing installation time.
Data Source
Figure 1~7
Figure 8
AI summary
The casing (1) has a casing part connected above a joinery (3) e.g. window, and another casing part designed for being extended in a reentrant (18) provided in a masonry above an opening (4). The former casing part has a covering unit formed of a covering profile and a covering layer, and adapted to be applied on an upper peripheral border (24) and a vertical peripheral border of the reentrant from an internal side (7) to the masonry. The covering profile is articulatedly mounted in an upper edge of an internal wall (20) using a junction band made of flexible plastic material.