Two-part Static Part for Roller Shutter Housing Stability
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Solution Overview
Problem
Existing roller shutter box static parts are difficult to assemble and require complete dismantling for maintenance, and they lack effective mechanisms to absorb wind loads and prevent unwanted movement of the window or door frame.
Innovation Solution
A two-part static part design with a base part and a cover part, where the base part is an insert part with an insert tongue and the cover part is a plug-in part, allowing for easy assembly and disassembly, and providing enhanced stability by absorbing forces transversely to the roller shutter box, with a greater moment of resistance against bending and secure anchoring to the frame and ceiling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If a profile part is arranged in the roller shutter box and connected to the window frame and building ceiling, then stability against wind loads is improved, but assembly complexity increases and complete dismantling is required for maintenance
Solution Approach 1:
The static part is divided into two separate parts: a base part that connects to the window frame and a cover part that connects to the roller shutter box. This segmentation allows the base part to be pre-installed on the frame while the cover part is attached to the box, enabling independent assembly and maintenance of each component without complete dismantling.
Solution Approach 2:
The static part acts as an intermediary element between the window frame and the roller shutter box. It transfers and distributes wind loads from the box to the frame, providing stability while maintaining a clear separation between the structural support function (base part) and the mounting function (cover part).
2Strength
If the static part is designed as a single integrated piece, then structural strength is improved, but ease of assembly and maintenance deteriorates
Solution Approach 1:
The static part is segmented into a base part and a cover part that can be assembled separately. The base part contains the connection elements for the window frame, while the cover part contains the connection elements for the roller shutter box. This allows workers to assemble each part independently and then join them, maintaining ease of assembly while achieving the structural strength of an integrated design.
Solution Approach 2:
The base part can be pre-installed on the window frame before the roller shutter box is mounted. This preliminary action simplifies the overall assembly process by having the support structure ready in advance, allowing the box to be attached directly to the pre-positioned base part without requiring complex simultaneous alignment of multiple components.
3Stability of the object's composition
If the static part penetrates through the roller shutter box, then stability and load absorption are improved, but ease of repair deteriorates as complete dismantling is required
Solution Approach 1:
By segmenting the static part into a base part and a cover part, the connection to the roller shutter box is made detachable. The cover part can be removed from the box without affecting the base part that remains installed on the frame. This allows maintenance workers to access and repair the roller shutter curtain by simply removing the cover part, eliminating the need for complete dismantling while maintaining stability during normal operation.
4Strength
If the vertical section has greater extension in the transverse direction, then moment of resistance against bending is improved, but device complexity increases
Solution Approach 1:
The vertical section of the static part has greater extension specifically in the transverse direction where bending moments are highest, rather than uniformly increasing dimensions in all directions. This local quality optimization provides the necessary moment of resistance against bending loads while avoiding unnecessary material usage and complexity in other dimensions where full extension is not required.
Data Source
Figure 1
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AI summary
The shutter box (1) has a side space (3) and an outer side (4), where an upper side of the box is assigned to a building ceiling and a window or door frame by passing the box through a metallic static part (6) connected to a housing cover. The static part includes a top part (7) and a bottom part (8) detachably connected in a vertical direction. The top part includes a vertical portion (11) aligned in terms of area in a transverse direction of the shutter box, where the top part and the bottom part have a parallel bottom or top section.