Wire Mesh Posts for Noise Walls

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Solution Overview

Problem

Existing noise protection and partition walls face challenges with stability, flexibility, and aesthetics due to the use of solid steel posts, which are costly, visually unattractive, and require complex connections, while also being inflexible and prone to horizontal deflection.

Innovation Solution

The use of wire mesh posts with screw-clamp fastening elements allows for a lightweight, inexpensive, and adaptable wall system that can be easily assembled and customized, featuring a grid pattern that enables the use of smaller grain sizes for filling material and provides enhanced stability through stiffening elements.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Strength

If solid steel posts are used to provide structural stability, then the wall achieves sufficient strength and stability, but the material cost increases and the visual appearance becomes unattractive

Engineering Contradiction:
Improvestructural strengthVSAvoidmaterial cost
Core Design Contradiction:
StrengthVSEase of manufacture

Solution Approach 1:

The patent replaces solid steel posts with wire mesh posts that have a porous, open structure. The wire mesh provides structural stability through its geometric configuration rather than material density, achieving the required strength while using significantly less material and reducing cost.

Inventive Principle:
Principle #31Porous materials

Solution Approach 2:

The patent combines wire mesh panels with wire mesh posts to create a composite structural system. This composite approach distributes structural loads across the entire wall assembly rather than relying on massive individual posts, achieving sufficient strength with lighter, more economical materials.

Inventive Principle:
Principle #40Composite materials

2Stability of the object's composition

If solid steel posts with closed side surfaces are used, then structural stability is improved, but the visual appearance becomes striking and unattractive compared to wire mesh panels

Engineering Contradiction:
Improvestructural stabilityVSAvoidvisual appearance
Core Design Contradiction:
Stability of the object's compositionVSShape

Solution Approach 1:

The wire mesh posts maintain structural stability through their open porous structure rather than closed solid surfaces. This allows the posts to be visually integrated with the wire mesh panels, creating a uniform appearance while still providing the necessary structural support.

Inventive Principle:
Principle #31Porous materials

3Device complexity

If a fixed connection type using bores and screws is used, then the wall assembly is simplified, but the adaptability for on-site adjustments is lost

Engineering Contradiction:
Improveconnection complexityVSAvoidon-site adjustability
Core Design Contradiction:
Device complexityVSAdaptability or versatility

Solution Approach 1:

The patent employs a dynamic connection system where panels can be attached to and detached from posts through simple mechanical means. This allows the wall configuration to be easily adjusted on-site by repositioning panels along the posts without requiring complex drilling or fastening operations.

Inventive Principle:
Principle #15Dynamics

4Quantity of substance

If narrow walls with large static slenderness ratio are constructed, then material usage is reduced, but the resistance to horizontal deflection becomes insufficient

Engineering Contradiction:
Improvematerial usageVSAvoidresistance to horizontal deflection
Core Design Contradiction:
Quantity of substanceVSStrength

Solution Approach 1:

The patent utilizes the inherent flexibility of the wire mesh structure to accommodate horizontal deflections rather than resisting them rigidly. The mesh configuration allows controlled movement that maintains structural integrity while reducing material requirements compared to rigid solid constructions.

Inventive Principle:
Principle #34Discarding and recovering

Data Source

PatentEP1925738B1Wall made from panels and posts limiting a volume to be filled
Publication Date: 2011.01.12 LEHRHUBER KONRAD
  • EP1925738B1 patent drawingFigure 1
  • EP1925738B1 patent drawingFigure 2a~2l
  • EP1925738B1 patent drawingFigure 3a~3f

AI summary

The unit has two metal sheets (2) forming longitudinal sides and arranged at a distance from one another. One of the sheets forms a base of a wall filling cage of the unit, which is impermeable for a filling material (32). The unit is partially filled with the material in a transport condition or delivery condition. The unit borders the cage with a wall filling space (31) for the filling material. The metal sheets and/or posts and/or metal posts and/or a reinforcement component and/or a screw clamping-fastening unit and/or a metal sheet spacer are made of iron, steel and stainless steel.