Rhomboid Mesh Netting With Helical Strands for Flexible High Resistance

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Existing rhomboid mesh nettings with high-strength metal wires face challenges in construction due to increased resistance leading to difficulty in forming the desired shape, resilience issues, and require complex or special machinery, making them bulky and costly.

Innovation Solution

A netting with rhomboid mesh composed of helically wound strands made from high-strength steel wires with diameters less than 3 mm, allowing for high resistance and flexibility, using conventional machinery and maintaining a compact form.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Strength

If high-strength metal wires with increased resistance are used in rhomboid mesh nettings, then the strength and durability of the netting is improved, but the difficulty of construction and shaping increases substantially

Engineering Contradiction:
Improveresistance of metal wiresVSAvoiddifficulty of construction
Core Design Contradiction:
StrengthVSEase of manufacture

Solution Approach 1:

The netting is divided into modular panels that can be manufactured separately and then assembled together. Each panel is constructed from standardized components that can be easily connected, reducing the overall construction difficulty while maintaining high strength through the use of high-strength wires in each module.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The high-strength metal wires are pre-formed into standardized components and panels before final assembly. This preliminary shaping and preparation of components reduces the difficulty of on-site construction, as the challenging forming operations are performed under controlled manufacturing conditions rather than during field installation.

Inventive Principle:
Principle #10Preliminary action

2Strength

If high-strength metal wires with increased resistance are used in rhomboid mesh nettings, then the strength and durability of the netting is improved, but the resilience and ability to maintain desired form increases

Engineering Contradiction:
Improveresistance of metal wiresVSAvoidresilience and form
Core Design Contradiction:
StrengthVSShape

Solution Approach 1:

The netting is divided into modular panels with standardized geometries. This segmentation allows each panel to be pre-formed to precise specifications and then assembled together, ensuring the overall structure maintains the desired form while benefiting from the high strength of the wire material.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent modifies geometric parameters of the rhomboid mesh, such as the angles and dimensions of the individual cells, to optimize the balance between resilience and form stability. By carefully selecting these geometric parameters, the netting achieves both the desired flexibility for installation and the stability needed to maintain its shape under load.

Inventive Principle:
Principle #35Parameter changes

3Strength

If high-strength metal wires are used in rhomboid mesh nettings, then the resistance and durability is improved, but the weight and transport costs increase

Engineering Contradiction:
Improveresistance of nettingVSAvoidweight of netting
Core Design Contradiction:
StrengthVSWeight of moving object

Solution Approach 1:

The netting employs high-strength wires selectively in critical load-bearing regions and connections, while using lighter materials or reduced wire diameters in non-critical areas. This localized application of high-strength material maintains the necessary resistance and durability where needed while reducing the overall weight of the structure.

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The patent utilizes composite construction combining high-strength metal wires with lighter supporting structures or anchoring systems. This composite approach allows the netting to achieve high resistance through the metal wire components while the overall structure maintains reduced weight through the use of lighter auxiliary materials.

Inventive Principle:
Principle #40Composite materials

4Strength

If high-strength metal wires are used in rhomboid mesh nettings, then the resistance is improved, but the complexity of machinery required for construction increases

Engineering Contradiction:
Improveresistance of nettingVSAvoidcomplexity of machinery
Core Design Contradiction:
StrengthVSDevice complexity

Solution Approach 1:

The construction process is segmented into separate operations: panel manufacturing, component assembly, and field installation. This segmentation allows specialized, relatively simple machinery to be used for each discrete operation rather than requiring one complex machine to perform all functions, thereby reducing overall equipment complexity while still achieving high-strength construction.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

Complex forming and shaping operations are performed in advance during panel manufacturing under controlled conditions. This preliminary action reduces the complexity of equipment needed during field installation, as the challenging operations are completed using standardized manufacturing equipment rather than requiring complex field machinery.

Inventive Principle:
Principle #10Preliminary action

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 lightweight, flexible, and cost-effective netting with high resistance, suitable for irregular terrain, easy handling, and reduced transport costs, while maintaining desired mesh dimensions and shape.

Implementation Method 1

Each elongate element is a rope or a strand which is constructed with at least two metal wires which are helically wound about the same axis

Methodology Applied
Scientific EffectHelical winding: Helix

Data Source

PatentEP4644608A1Netting with rhomboid mesh for use in civil engineering in geotechnical applications
Publication Date: 2025.11.05 OFFICINE MACCAFERRI SPA
  • EP4644608A1 patent drawingFigure 1
  • EP4644608A1 patent drawingFigure 2
  • EP4644608A1 patent drawing

AI summary

A netting with rhomboid mesh, in particular for use in civil engineering in geotechnical applications, preferably in the field of protection from natural risks, is composed of elongate elements which are bent in the manner of a flattened spiral and are wound about adjacent elongate elements by half a revolution, that is to say by 180°. At least some of the elongate elements are ropes or strands which are each constructed with at least two metal wires which are helically wound about the same axis, wherein each metal wire has a diameter less than 3 mm.