Folding Protection Shield with Pivoting Net Struts

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Solution Overview

Problem

Existing barrier signs require complex and voluminous folding of net struts for transport, leading to increased volume and difficulty in handling and assembly, with existing solutions either deforming the net or requiring separate transportation of components.

Innovation Solution

Rigidly connecting pairs of net struts to framework elements, allowing them to pivot relative to each other, and using bolt connections for easy assembly and disassembly, with a V-shaped or star-shaped arrangement for enhanced stability and reduced transport volume.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Volume of moving object

If net struts are folded into transport position aligned parallel to the pull rod, then the construction becomes compact for transport, but the net becomes bunched up around them increasing the volume to be transported

Engineering Contradiction:
Improvetransport volumeVSAvoidhandling and assembly
Core Design Contradiction:
Volume of moving objectVSEase of operation

Solution Approach 1:

The barrier shield is divided into separate modular components: the scaffolding framework (net struts and framework elements) and the net are transported separately. This segmentation allows the scaffolding to be folded compactly without the net being deformed or bunched up, eliminating the volume increase problem while simplifying on-site assembly where the net is simply attached to the erected framework

Inventive Principle:
Principle #1Segmentation

2Ease of operation

If net struts are rigidly connected to framework elements with pivoting capability, then assembly is simplified, but the attachment mass must be increased for stability

Engineering Contradiction:
ImproveassemblyVSAvoidattachment mass
Core Design Contradiction:
Ease of operationVSWeight of stationary object

Solution Approach 1:

Pairs of net struts are rigidly connected to form framework elements, merging multiple components into unified structural units. This combination provides stable attachment points that can support the net without requiring excessive mass, while the pivoting connection between framework elements enables simple assembly operations

Inventive Principle:
Principle #5Merging (Combining)

3Ease of operation

If net is attached after scaffolding erection, then handling is easier, but the net must be transported separately increasing complexity

Engineering Contradiction:
ImprovehandlingVSAvoidtransport complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The system is segmented into the scaffolding framework and the net as separate transportable components. The framework can be folded compactly for transport and erected first at the site, while the net is transported separately and attached afterward, combining the benefits of easy handling during transport with simplified on-site assembly operations

Inventive Principle:
Principle #1Segmentation

Data Source

PatentEP2848737B1Protection shield
Publication Date: 2016.11.02 MAIR WILFRIED GMBH SRL
  • EP2848737B1 patent drawingFigure 1
  • EP2848737B1 patent drawingFigure 2
  • EP2848737B1 patent drawingFigure 3

AI summary

Folding construction shield with a first pair (2) net struts (4) and a second pair (3) net struts (4), wherein a net (5) can be attached to the net struts (4), wherein the first pair (2) net struts (4) is connected to a first scaffold element (6) such that the first pair (2) net struts (4) can be pivoted together relative to a second scaffold element (7), wherein the second pair (3) net struts (4) are part of the second scaffold element (7).