Mosquito Net Moving Element with Articulated Guide and Elastic Return
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Solution Overview
Problem
Existing mosquito net systems are costly, complex to install, and require user skill for effective operation, with potential gaps in insect confinement due to manual handling errors.
Innovation Solution
A movement element comprising a supporting frame with a fixed and movable box, using articulated segments and a flexible belt with elastic means to automatically transition the mosquito net between configurations, minimizing manual intervention and maintenance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If two flexible tracks with articulated segments are used to guide the movable post, then the mosquito net can be effectively guided and constrained during movement, but the manufacturing cost increases considerably and the overall space occupation increases
Solution Approach 1:
The patent extracts and eliminates one of the two flexible tracks from the system. Instead of using both upper and lower flexible tracks with articulated segments, the invention uses only a single flexible track (typically the upper one) while replacing the lower track with a simpler rigid guide profile fixed to the threshold. This extraction of the redundant flexible track reduces manufacturing costs and structural complexity while maintaining effective guiding through the combination of the remaining flexible track and the rigid profile.
Solution Approach 2:
The patent changes the physical parameters and material properties of the guiding system. The lower flexible track with articulated segments is replaced by a rigid guide profile with specific geometric parameters (grooves, seats, and contours) designed to guide the movable post. This parameter change from flexible articulated structure to rigid geometric profile simplifies the overall system while maintaining guiding effectiveness.
2Reliability
If two flexible tracks with articulated segments are used to guide the movable post, then the mosquito net can be effectively guided and constrained during movement, but the installation and assembly become more complicated
Solution Approach 1:
The patent extracts and eliminates one of the two flexible tracks from the system. Instead of using both upper and lower flexible tracks with articulated segments, the invention uses only a single flexible track (typically the upper one) while replacing the lower track with a simpler rigid guide profile fixed to the threshold. This extraction of the redundant flexible track reduces manufacturing costs and structural complexity while maintaining effective guiding through the combination of the remaining flexible track and the rigid profile.
Solution Approach 2:
The patent replaces the expensive and complex lower flexible track with a simple, inexpensive rigid guide profile that can be easily manufactured and installed. This rigid profile acts as a permanent fixture in the threshold, eliminating the need for a costly flexible track assembly in that position, thereby simplifying both manufacture and installation.
3Device complexity
If a single upper lamina and a single lower track are used, then the costs are reduced and space occupation is minimized, but user skill is required for correct operation to ensure effective insect confinement
Solution Approach 1:
The patent implements self-service mechanisms that allow the mosquito net system to automatically perform functions that previously required user skill. The elastic element automatically returns the movable post to the retracted position, ensuring the net is properly gathered when not in use. The combination of the flexible track and rigid profile with designed geometric constraints guides the post along the correct path automatically, eliminating the need for users to manually align or position components correctly.
Solution Approach 2:
The patent incorporates feedback mechanisms through the elastic element and the geometric design of the guiding system. The elastic element provides continuous mechanical feedback by exerting restoring force that guides the post back to the correct position. The rigid profile with its specific grooves and seats provides geometric feedback, physically constraining the post to follow the intended movement path, thereby ensuring correct operation without requiring user knowledge or skill.
4Extent of automation
If a elastic element is added to force the sliding end toward the bottom of the lower head, then automatic return to retracted position is achieved, but the device complexity increases
Solution Approach 1:
The patent merges the function of the elastic element with the existing rigid guide profile structure. The elastic element is integrated into the lower head assembly, and its action is combined with the geometric constraints of the rigid profile's grooves and seats. This merging allows the elastic restoring force to work in conjunction with the rigid guide's geometric path definition, achieving automatic return functionality without adding a completely separate, complex mechanism. The elastic element and rigid profile work as a unified system rather than independent additions.
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 solution provides a cost-effective, easy-to-install, and efficient mosquito net system that automatically confines insects, reducing manual errors and maintenance needs while ensuring strong and stable operation.
Implementation Method 1
there are elastic means for forcing the second sliding end of the track toward the bottom of the lower head
Data Source
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AI summary
An element (1 ) for moving mosquito nets (2), curtains and the like, of the roller type comprising a supporting frame for a sheet (3) that can be installed at an opening in an element of the type of a wall and the like. The frame comprises a fixed box (4), which is coupled to one edge of the sheet (3) and is associated stably with a corresponding edge of the opening, and a movable box (5), which contains at least partially the element (1), which is fixed at the opposite end to the sheet (3) and can translate along respective lower and upper guiding means (6, 7) on command, along a direction that is substantially perpendicular to the fixed box (4), for transition from a first configuration, in which the sheet (3) is substantially gathered, to a second configuration, in which the sheet (3) is extended so as to close the opening, and vice versa, the lower guiding means (6) comprising a track (6) that is constituted by a plurality of mutually articulated segments that have a first end (8), which is coupled to a first component selected between the base of the fixed box (4) and the lower head (5a) of the movable box (5), and a second end (9), which can slide within an internal seat of a second component selected between the lower head (5a) of the movable box (5) and the base of the fixed box (4). The upper guiding means (7) comprise a flexible belt (7) that has a first end (10) coupled to a third component, selected between the top of the fixed box (4) and the top of the movable box (5), and a second end ( 1 1), which can slide within a seat that is internal to either the lower head (5a) of the movable box (5) or the fixed box (4), and is coupled rigidly to the second sliding end (9) of the track (6) downstream of adapted guiding means (12) that are internal to the installation box (4, 5), elastic means (13a, 13b, 13c, 13d) being provided to force the second sliding end (9) of the track (6) toward the bottom of the installation box (4, 5), with consequent traction of the sheet (3) in the second configuration, wherein the sheet (3) is extended so as to close the opening.