Modular Stiffening Element for Roller Shutter Housing Adaptation
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Solution Overview
Problem
Conventional stiffening elements for roller shutter boxes are not easily adaptable to different heights and depths, and they complicate access for inspection and maintenance due to their fixed design, requiring separate elements for each size and making disassembly or replacement difficult.
Innovation Solution
A modular stiffening element composed of three parts – a floor attachment element, a ceiling connection element, and a connecting element – with adjustable fastening mechanisms, including screws and projections/recesses, allowing for flexible adaptation to various roller shutter box sizes and easy assembly/disassembly without the need for complete disconnection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If conventional bracket-shaped static brackets made of metal are used as stiffening elements, then the structural rigidity is improved, but the adaptability to different heights and depths deteriorates and disassembly becomes difficult
Solution Approach 1:
The stiffening element is divided into three separate components: a floor attachment element, a connecting element, and a ceiling connection element. These segments can be independently adjusted and connected through the connecting means (screw or rivet) to accommodate different roller shutter box dimensions while maintaining structural rigidity through the form-fit connections and attachment points.
Solution Approach 2:
The connection system incorporates adjustable features including multiple fastening bores, elongated holes, and form-fit connections that allow dynamic adaptation to different heights and depths. The connecting means can be positioned at various locations and the entire assembly can be disassembled and reconfigured for different applications.
2Strength
If conventional bracket-shaped static brackets made of metal are used as stiffening elements, then the structural rigidity is improved, but the ease of operation for inspection and maintenance deteriorates
Solution Approach 1:
The modular three-part design allows the stiffening element to be easily disassembled by removing the connecting means, providing clear access to the roller shutter curtain for inspection and maintenance while maintaining structural integrity when assembled through form-fit connections and attachment points.
3Adaptability or versatility
If separate stiffening elements are required for each height or depth, then the adaptability to different sizes is improved, but the device complexity increases
Solution Approach 1:
A single universal stiffening element design with adjustable features (multiple fastening bores, elongated holes, form-fit connections) can accommodate various roller shutter box sizes and configurations. This eliminates the need for multiple separate stiffening elements for different heights and depths, reducing inventory complexity while maintaining adaptability.
4Device complexity
If a direct connection of the connection points is made, then the structural simplicity is improved, but the ability to bypass the rolled-up roller shutter deteriorates
Solution Approach 1:
The stiffening element is configured to extend around the rolled-up roller shutter in the depth direction, bypassing it to connect the floor and ceiling attachment points. This three-dimensional routing allows direct structural connection while accommodating the presence of the rolled-up shutter, maintaining both simplicity and adaptability.
Data Source
Figure 1
Figure 2a
Figure 2b
AI summary
The stiffener element (10) has a ceiling connector (13) comprising a series of mounting holes or an oblong hole (13.2) and an orthogonally arranged web-like ceiling locking collar (13.1). A connector (12) is connected with a bottom connector (11) and the ceiling connector through connecting elements (14, 15) i.e. connecting bolts, which are inserted into one of the mounting holes or into the oblong hole. Web-like bottom locking collar (13.1) of the bottom connector and the ceiling locking collar of the ceiling connector are engaged with slot-shaped recesses (12.1, 12.2) of the connector.