Anti-mosquito Net Rope Replacement and Guide Compatibility
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Solution Overview
Problem
Current anti-mosquito net systems for horizontal door sliding face challenges such as increased production and selling costs due to the coexistence of different components for articulated and fixed bottom guides, difficult rope replacement, and issues with incorrect dimension measurements leading to unusable systems.
Innovation Solution
The system employs ropes that start from the retention case, run through the net, and end at both the top and bottom guides, with a second knot mechanism allowing for easy rope replacement and using the same components for both guide types, enabling kits for adjustable heights and bilateral openings.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If different components are used for articulated and fixed bottom guides, then the system can accommodate both guide types, but production and selling costs double
Solution Approach 1:
The patent applies universality by designing a single set of components (bars, moulds, assembly procedures) that can be used for both articulated and fixed bottom guides. The component is designed with universal features that allow it to function with either guide type, eliminating the need for separate component sets and thereby reducing production costs while maintaining compatibility with both guide types.
2Ease of operation
If ropes are used to fold and unfold the net, then the net can be operated horizontally, but the ropes are frequently cut and difficult to replace
Solution Approach 1:
The patent applies segmentation by dividing the rope into multiple separate segments rather than using a single continuous rope. Each segment can be independently replaced if cut, eliminating the need to replace the entire rope assembly. This segmentation allows the net to maintain its horizontal sliding operation while significantly simplifying repair procedures.
3Ease of manufacture
If the system is assembled as a single ready-made frame, then installation is simplified, but dimension errors cannot be corrected
Solution Approach 1:
The patent applies dynamics by making the frame components adjustable rather than fixed. The bars and connections are designed to allow dimension adjustments after assembly, enabling the system to adapt to incorrect measurements. This dynamic design maintains the simplicity of initial assembly while providing the flexibility to correct dimension errors through adjustment mechanisms.
Data Source
Figure 1~1c
Figure 2
Figure 3~3c
AI summary
The system has a pleated net(7) which is run across by ropes (1a, 2a, 3a, 4a, 5a, 6a) that all start off the same side of the retention case (2); they run across the net and all are directed towards the top fixed guide (25); some ropes (1a, 2a, 3a) are fastened on the top part of the system, while the remaining ropes (4a, 5a, 6a) are directed towards the bottom guide and all finish with knots at the tip(30) of the articulated guide (4) or at an end component (34). One of the ropes (6a) continues and forms a second knot on a component (39) and then it continues and finishes at the bottom part, or at the top part of the system, depending on whether the system has a bottom, fixed horizontal guide (17) or an articulated guide (4), respectively. The second knot that is formed by one of the ropes (6a) on a component (39), makes this rope (6a) independent. If it breaks due to its use at whatever point of its length from the second knot that it forms on the component (39) and onwards, the replacement is easy. The broken rope (6a) is cut close to the component (39) where it forms the second knot and is discarded. A new rope is fastened with a knot on the component(39) of the articulated guide (4) or of the fixed guide (17).