Retaining Net Edge Mesh Design for Sagging Prevention
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Solution Overview
Problem
Existing retaining nets with elastic mesh structures mounted on fastening surfaces often result in uneven mesh patterns and sagging at the edges due to larger mesh sizes in central areas compared to edge areas.
Innovation Solution
The net meshes in the non-assembled state are progressively smaller towards the edges, ensuring they are the same size in both central and edge areas upon assembly, resulting in a uniform mesh structure and reduced sagging.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the net meshes are made larger in central areas to improve visibility and access, then the central area functionality is enhanced, but sagging occurs at the edge regions
Solution Approach 1:
The patent applies local quality by varying the mesh size according to position: larger meshes in central areas for visibility and access, smaller meshes at edges for stability. This spatial differentiation of mesh dimensions allows each region to have properties optimized for its specific functional requirements.
2Stability of the object's composition
If the net meshes are made smaller at the edges to reduce sagging, then edge stability is improved, but the mesh pattern becomes uneven
Solution Approach 1:
The patent implements local quality by creating position-dependent mesh sizes that are deliberately non-uniform in the unmounted state. The smaller edge meshes are strategically designed to compensate for expected sagging, achieving uniform appearance only after mounting when the net is under tension.
3Area of stationary object
If the net meshes are made larger in central areas, then the central area coverage is improved, but the edge regions experience increased sagging
Solution Approach 1:
The patent resolves this contradiction by applying local quality through spatially varying mesh dimensions. Central areas have larger meshes for maximum coverage, while edge areas have smaller meshes specifically engineered to resist sagging, with the transition between these zones carefully managed.
Solution Approach 2:
The patent applies preliminary anti-action by pre-compensating for expected edge sagging through smaller initial mesh dimensions at the edges. This preemptive design choice counteracts the sagging force before it occurs, ensuring uniform mesh appearance in the mounted state.
4Strength
If the net meshes are made smaller at the edges to strengthen the edge area, then sagging is reduced, but the overall mesh uniformity is compromised
Solution Approach 1:
The patent implements local quality by differentiating mesh sizes based on positional requirements. Edge meshes are smaller to provide enhanced strength and sagging resistance, while central meshes are larger for optimal coverage, creating a functionally optimized non-uniform structure.
Solution Approach 2:
The patent applies preliminary action by pre-configuring the net with non-uniform mesh sizes during manufacturing, anticipating the uniform appearance needed in the mounted state. This preliminary design adjustment ensures that after mounting, all meshes appear uniform despite their different initial dimensions.
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
This approach creates a more even mesh pattern on the surface with reduced sagging at the edges, enhancing the structural integrity and uniformity of the retaining net.
Implementation Method 1
an elastic net mesh, the net meshes of which are formed by groups of strands running at an angle to one another
Data Source
AI summary
In the case of a retaining net for installation on a fastening surface, an elastic net part is provided, the net meshes of which are formed by assemblages of strands running at an inclination to one another and each having a plurality of net strands. In order to configure such a retaining net in such a manner that, in the fitted state of the retaining net or of the net part, a more uniform mesh structure is achieved than in the prior art and sagging at the edges is very substantially avoided, it is proposed that, in the non-fitted state of the net part, the net meshes in the edge regions of the net part are smaller than in central regions of same, and that, in the fitted state of the net part, the net meshes are the same size in the edge regions and in the central regions of said net part.