Collapsible Insect Screen Frame Using Hinged Partial Profiles
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Solution Overview
Problem
Existing clamping frames for insect screens are often bulky and difficult to handle, requiring specialized logistics and tools for installation and storage, which complicates their handling and transportation.
Innovation Solution
A collapsible clamping frame design featuring side profile elements divided into partial profiles connected by hinge joints or captive devices, allowing for easy folding and unfolding without tools, reducing bulk and enabling simpler logistics and handling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the tension frame is designed as a complete, non-collapsible unit, then it provides high structural stability and rigidity, but it becomes bulky and difficult to handle, store, and transport
Solution Approach 1:
The tension frame is divided into multiple partial profiles (typically two per side) that can be separated and folded relative to each other. This segmentation allows the frame to be collapsed into a compact configuration for easy storage and transport, while maintaining full structural stability when extended and assembled, directly resolving the contradiction between stability and ease of handling.
2Stability of the object's composition
If the tension frame is designed as a complete, non-collapsible unit, then it provides high structural stability, but it requires specialized logistics and tools for installation and storage
Solution Approach 1:
By segmenting the frame into collapsible partial profiles, the invention eliminates the need for specialized logistics and storage facilities. The frame can be compacted to a fraction of its extended size, allowing it to be shipped through normal shipping channels and stored in standard conditions, thereby reducing logistics complexity while maintaining structural integrity.
Solution Approach 2:
The tension frame incorporates dynamic hinge joints that allow the partial profiles to pivot between folded and extended positions. This dynamic capability enables the frame to adapt its configuration based on operational needs, transforming from a compact stored state to a stable installed state without requiring specialized tools or complex logistics procedures.
3Ease of operation
If the lateral profile elements are divided into multiple sub-profiles, then the frame becomes collapsible and easier to handle, but the device structure becomes more complex
Solution Approach 1:
The division of lateral profile elements into sub-profiles connected by hinge joints creates a collapsible structure that is easier to handle. While this segmentation does increase structural complexity compared to a single-piece frame, the added complexity is minimal and localized to the joint areas, while providing substantial benefits in portability and storage.
Solution Approach 2:
When collapsed, the partial profiles are arranged next to each other in a nested configuration, with the sub-profiles positioned adjacently rather than consecutively. This nesting arrangement maximizes compactness while minimizing the overall structural complexity, as the profiles simply occupy adjacent spaces rather than requiring complex interlocking mechanisms.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The collapsible design reduces the clamping frame's size by up to a quarter of its original area when folded, facilitating easier handling, storage, and transportation without the need for specialized shipping, while maintaining stability in the extended position.
Implementation Method 1
the respective hinge joint is designed such that it is locked in its extended position
Implementation Method 2
another locking element or other locking function is provided that prevents the partial profiles from unintentionally folding over when clamped
Data Source
Figure 1~3
Figure 4~6
Figure 7
AI summary
The invention relates to a tension frame (2) for an insect screen for installation in a building opening such as a window, comprising two opposing lateral profile elements (6), wherein the opposing lateral profile elements (6) are each divided into partial profiles (10) and the partial profiles (10) are each connected by a hinge joint (12), wherein the hinge joint (12) can be moved from an extended position to a folded position and can be locked in the extended position, so that the tension frame (2) can be folded from an extended state to a folded state. This allows the tension frame (2) to be reversibly folded, making it less bulky and suitable for shipping.