Construction Safety Screen Overlap Mounting Mechanism

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Solution Overview

Problem

Existing construction safety screens cannot be mounted with overlap, leading to gaps between adjacent nets due to their design, which compromises safety and requires temporary solutions to cover irregular construction shapes.

Innovation Solution

A construction safety screen with a net structure and attachment arrangement featuring a U-shaped net hanger and adjustable coupling parts that allow for easy overlap and flexible mounting on various construction shapes, including those with curving lines, using sub-divided compartments and clamping mechanisms for secure attachment.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If adjacent nets are mounted immediately next to each other, then mounting is simplified, but gaps appear between nets compromising safety

Engineering Contradiction:
Improvemounting simplicityVSAvoidsafety coverage
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The patent applies preliminary action by pre-configuring the attachment arrangement with a U-shaped net hanger that anticipates the need for overlap. The net hanger is designed beforehand to accommodate the rear horizontal tube at a distance from the short side, creating built-in overlap capability before mounting occurs, thus ensuring safety coverage is maintained from the outset without requiring complex field adjustments.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The patent resolves the contradiction by transitioning from a zero-dimension point contact (mounting edges touching) to a one-dimensional linear overlap (rear horizontal tube extending beyond U-shaped portion). This dimensional change allows the net to overlap with adjacent nets along the horizontal axis, ensuring continuous safety coverage while maintaining simple mounting procedures.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

2Reliability

If nets are mounted with overlap to ensure safety coverage, then safety is improved, but mounting complexity increases

Engineering Contradiction:
Improvesafety coverageVSAvoidmounting complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The attachment arrangement serves multiple functions: it anchors the net to the construction, accommodates the rear horizontal tube, enables overlap with adjacent nets, and provides adjustable positioning. This multi-functionality is achieved through the U-shaped net hanger design that integrates tube accommodation and overlap capability into a single universal component, reducing overall mounting complexity despite the enhanced safety coverage.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The patent applies dynamics through the adjustable net coupling part that can be positioned at different distances from the short side of the net structure. This adjustability allows the overlap distance to be dynamically modified based on specific mounting requirements, enabling safety coverage to be maintained while adapting to different construction geometries without increasing inherent mounting complexity.

Inventive Principle:
Principle #15Dynamics

3Device complexity

If mounting assemblies are attached immediately next to each other, then device simplicity is maintained, but adaptability to irregular construction shapes is lost

Engineering Contradiction:
Improvemounting assembly simplicityVSAvoidadaptability to construction shapes
Core Design Contradiction:
Device complexityVSAdaptability or versatility

Solution Approach 1:

The patent applies dynamics by making the net coupling part adjustable along the rear horizontal tube. This adjustability allows the attachment arrangement to adapt to irregular construction shapes and curving lines while maintaining the simplicity of the basic mounting assembly design. The coupling part can be repositioned to accommodate varying distances and angles without requiring complex custom-mounted assemblies.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent applies segmentation by separating the attachment arrangement into distinct functional components: the U-shaped net hanger for tube accommodation, the retaining portion for securing, and the adjustable net coupling part for positioning. This segmentation allows each component to be optimized for its specific function while maintaining overall simplicity, and enables flexible adaptation to irregular construction shapes through independent adjustment of the coupling part position.

Inventive Principle:
Principle #1Segmentation

Data Source

PatentEP2550417B1Construction safety screen
Publication Date: 2014.07.02 COMBISAFE INT
  • EP2550417B1 patent drawingFigure 1
  • EP2550417B1 patent drawingFigure 2a~2b
  • EP2550417B1 patent drawingFigure 3~4

AI summary

The invention relates to a construction safety screen (100), comprising a net structure (102), which net structure (102) comprises a net (103), a front horizontal tube (105) located at a front edge of the net (103) and a rear horizontal tube (104) located at a rear edge of the net (103). An attachment arrangement (101) connects the construction safety screen (100) to a construction. The attachment arrangement (101) comprises a net hanger comprising a U-shaped portion. The rear horizontal tube (104) of the net structure (102) is accommodated in said U-shaped portion at a distance from a short side of the net structure (102) such that the rear horizontal tube (104) protrudes from both sides of the U-shaped portion. Alternatively, the net hanger of the attachment arrangement may be replaced by an adjustable net coupling part clamping the rear horizontal tube.