Roller Screen Device With Inverted Mobile Winding Roller
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Solution Overview
Problem
Conventional roller screen devices have limited compactness and require complex assembly, making them difficult to use and maintain, especially in reducing the overall dimensions of the sliding frame and ensuring reliable operation.
Innovation Solution
The roller screen device design reverses the typical configuration by placing the winding roller in the mobile sectional element, with sliding guide systems in the fixed element, allowing for compact dimensions, easy assembly, and user-friendly replacement of screens, utilizing interlocking guides and tensioning systems for efficient operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the winding roller is placed in the fixed sectional element and the screen is wound on it, then the screen can be reliably wound and unwound, but the overall dimensions of the device become larger and the aesthetic appearance is compromised
Solution Approach 1:
The patent inverts the conventional configuration by placing the winding roller in the mobile sectional element instead of the fixed one. This allows the fixed sectional element to have reduced dimensions while the mobile element carries the winding mechanism, resolving the contradiction between reliability and compactness
Solution Approach 2:
The device is divided into fixed and mobile sectional elements with distinct functions. The mobile element houses the winding roller and can be easily detached, allowing the fixed element to be compact while maintaining reliable screen winding through the mobile component
2Length of stationary object
If the sliding systems are placed in the mobile sectional element, then the device becomes more compact and aesthetically pleasing, but the complexity of assembly and maintenance increases
Solution Approach 1:
The device is segmented into a fixed sectional element containing the sliding systems and a mobile sectional element containing the winding roller. This segmentation allows the sliding systems to be placed in the fixed element (maintaining compactness) while the mobile element can be easily detached for simple maintenance and assembly
Solution Approach 2:
Instead of placing sliding systems in the mobile element, the patent inverts this by placing them in the fixed element. The mobile element then only needs to carry the winding roller, simplifying its structure and making assembly/maintenance easier despite the compact design
3Ease of operation
If the screen is anchored to the mobile sectional element, then the device allows easy replacement of screens by non-skilled users, but the overall dimensions and structural complexity increase
Solution Approach 1:
The screen replacement system is segmented into a mobile sectional element that can be easily detached from the fixed element. The screen is anchored to this mobile element, allowing users to simply detach and reattach the mobile element for screen replacement, achieving ease of operation without significant dimensional increase
Solution Approach 2:
The mobile sectional element is designed to be dynamically detachable and reattachable, allowing non-skilled users to easily replace screens. This dynamic design enables simple user operation while keeping the mobile element compact through optimized structural design
Data Source
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Figure 2
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AI summary
Described herein is a roller screen device constituted by a fixed sectional element (10) and a mobile sectional element (11) that is able to move parallel to the fixed sectional element inside a frame contained in which is a screen (13), the mobile sectional element (11) bearing a roller (12) inside it, wound on which is the screen (13), which, at the other end, is anchored to the fixed sectional element (10). Guide elements (14 and 24) for guiding the mobile sectional element (11) are positioned at the top and at the bottom of the screen (13) and fixed at one end of their own to the mobile sectional element (11), whilst the other ends of the guide elements (14) slide into the fixed sectional element (10). Moreover provided is a system for tensioning the guides (14 and 24), which acts during the steps of opening and closing of the screen (13). The tensioning system consists of a thread (20), which extends starting from the end (21) of the top guide (14) that slides in the fixed sectional element (10) towards and around a bottom roller (22) and from here to the end (23) of the bottom guide (24), which slides in the fixed sectional element (10), to proceed to and around a top roller (25) and from here to the end (21) of the top guide (14) so closing to form a loop.