Segmented Roller Blind Housing for Insect Protection
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Solution Overview
Problem
Existing insect protection devices for building openings, particularly door openings, face challenges in being easily handled, packaged, and transported due to their component dimensions and assembly complexity, especially when using the roller blind principle.
Innovation Solution
A vertically installed insect protection device with a divided winding shaft and roller blind housing, featuring a mesh or fabric web that can be unwound and pulled out, with components divided into halves for easier packaging and transport, and a pull-out strip designed as a hollow profile for efficient assembly and secure attachment to the web.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the protective device components (winding shaft, housing, extension strip) are made as single-piece structures, then the structural integrity and strength are improved, but the packaging size and transport difficulty increase significantly
Solution Approach 1:
The patent divides the protective device into multiple separable components: the winding shaft is split into first and second shaft sections, the housing into first and second housing sections, and the extension strip into first and second profile sections. Each component can be packaged separately in a compact state, reducing overall packaging volume while maintaining structural integrity through designed connection elements that join the segments during assembly.
2Ease of operation
If the protective device components are divided into multiple sections, then the ease of packaging and transport is improved, but the device complexity and assembly difficulty increase
Solution Approach 1:
The device is segmented into manageable sections (first and second shaft sections, first and second housing sections, first and second profile sections) that can be independently packaged and transported. The segmentation is designed to simplify logistics while controlling assembly complexity through standardized connection interfaces.
Solution Approach 2:
The first shaft section is inserted into the second shaft section, and similarly, housing sections and profile sections are nested or joined together. This nesting approach allows compact packaging of segmented components while providing clear assembly guidance through hierarchical insertion, reducing assembly complexity despite the multiple components.
3Reliability
If the winding shaft and housing are made longer to accommodate full extension, then the functional performance is improved, but the transportability and handling ease deteriorate
Solution Approach 1:
The winding shaft is divided into first and second shaft sections, the housing into first and second housing sections, allowing the device to achieve full functional length when assembled but be transported in shorter, manageable segments. The extension strip is also divided into first and second profile sections that connect to provide the necessary spanning length for insect-proof coverage while enabling compact transport.
4Adaptability or versatility
If the protective device is designed as a telescopic structure, then the adaptability to different opening sizes is improved, but the device complexity and manufacturing difficulty increase
Solution Approach 1:
The protective device uses segmented components (shaft sections, housing sections, profile sections) that can be assembled in different configurations to adapt to various opening sizes. The first and second sections of each component are designed with standardized interfaces that allow flexible assembly, providing adaptability without requiring complex telescopic mechanisms.
Data Source
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AI summary
The invention relates to a protective device (1) as insect protection for a door opening for vertical mounting in a building opening, comprising a winding shaft (12) rotatably arranged in a roller blind housing (2) and a mesh or fabric panel (3) that can be unwound from this shaft and extended horizontally from the roller blind housing (2) to span the building opening, wherein the winding shaft (12) and the roller blind housing (2) are each divided into a maximum of half their total length (L1, L2) and the two housing parts (2a, 2b) as well as the two shaft sections (12a, 12b) are assembled to their respective total lengths in the assembly state.and wherein the roller blind housing (2) is formed from a first housing part (2a) with a housing section length (L1) corresponding to a maximum of half the total length of the roller blind housing (2) and from a second housing part (2b) which can be mounted end-to-end with the first housing part (2a) and is assembled in the assembled state, and which has a housing section length (L2) corresponding to the total length of the roller blind housing (2).