Rigid Privacy Screen Fastening for Mesh Fences

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Solution Overview

Problem

Existing privacy screens for rigid mesh fences, such as those made of polyvinyl chloride (PVC), deteriorate over time, are not completely opaque, and are difficult to install, requiring skillful folding and access from both sides for secure attachment.

Innovation Solution

A rigid privacy screen with a fastening system using a fastener piece that includes a first and second part, where the second part passes through a bore on the rear face and is locked from the front face, allowing easy and secure attachment to the mesh fence without needing access from the rear.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If plastic slats are used for privacy screening, then privacy is provided, but they discolor and deteriorate over time

Engineering Contradiction:

ImprovedurabilityVSAvoidservice life

Core Design Contradiction:

ReliabilityVSDuration of action of stationary object

Solution Approach 1:

The patent changes the material parameter from plastic (PVC) to metal (steel or aluminum), fundamentally altering the durability and resistance properties. This material substitution eliminates the deterioration and discoloration issues inherent in plastic while maintaining the privacy screening function.

Inventive Principle:

Principle #35Parameter changes

2Adaptability or versatility

If flexible plates are used for attachment, then they can conform to the mesh shape, but they are not sturdy and appear less durable

Engineering Contradiction:

Improveconformability to meshVSAvoidsturdiness

Core Design Contradiction:

Adaptability or versatilityVSStrength

Solution Approach 1:

The patent uses a rigid plate with integrated flexible elements (elastomeric seals or bending flaps) that provide conformability to the mesh surface while the main plate structure remains rigid and sturdy. This hybrid approach maintains both adaptability and strength.

Inventive Principle:

Principle #30Flexible shells and thin films

3Ease of operation

If multiple holes are provided in the panel for securing, then attachment is possible, but the installation is neither convenient nor quick

Engineering Contradiction:

Improveinstallation convenienceVSAvoidinstallation time

Core Design Contradiction:

Ease of operationVSLoss of time

Solution Approach 1:

The patent segments the attachment function into distinct components: the plate with pre-drilled holes, the elastomeric seal, and the fastening mechanism. This segmentation allows for pre-assembly and simplifies the installation process by separating the conforming function from the securing function.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The plate is pre-drilled with holes and pre-assembled with the elastomeric seal during manufacturing. This preliminary action eliminates the need for on-site drilling and seal installation, significantly reducing installation time and improving convenience.

Inventive Principle:

Principle #10Preliminary action

4Ease of operation

If the panel is secured by passing clamps through numerous holes, then attachment is achieved, but access from both front and rear is required

Engineering Contradiction:

Improveaccessibility for installationVSAvoidinstallation procedure

Core Design Contradiction:

Ease of operationVSDevice complexity

Solution Approach 1:

The patent inverts the traditional fastening approach by having the fastening mechanism accessible from the front side only. The elastomeric seal and fastening components are designed to be installed and secured from the interior side, eliminating the need for rear access and simplifying the installation procedure.

Inventive Principle:

Principle #13The other way round (Inversion)

5Adaptability or versatility

If foldable plates with creases are used, then they can be positioned on the mesh, but creases are retained when unfolded and refolded

Engineering Contradiction:

Improvepositioning capabilityVSAvoidsurface smoothness

Core Design Contradiction:

Adaptability or versatilityVSShape

Solution Approach 1:

The patent uses an elastomeric seal or flexible flap that can be repeatedly bent and positioned without retaining creases. The elastomeric material's elastic properties allow it to return to its original smooth state after each positioning action, maintaining surface smoothness while providing positioning capability.

Inventive Principle:

Principle #30Flexible shells and thin films

Data Source

PatentEP4455429B1Screening or screening panel for rigid lattice fences and method for fixing the same

Publication Date: 2026.02.04 LDMA

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AI summary

A privacy screen or screening panel (1-1) for a rigid mesh fence, comprising a plate (10) having a front face and an opposite face called the rear face, and fastening and locking means (5) for locking the plate against the mesh in the mounted position of the panel, said fastening and locking means (5) comprising at least one attachment piece (50) capable of cooperating with at least one pair of a first bore (70) and a second bore formed in the thickness of the plate, characterized in that the attachment piece (50) is a rigid piece which comprises a first part (50A) positioned on the front face (16) of the plate in the position of use of the attachment piece on the plate, and a second part capable of passing through the first bore (70) to be arranged on the side of the rear face of the plate and opposite the second bore,and in that the fastening and locking means (5) further comprise at least one locking element (51) which is capable of cooperating with the second bore and the second part of the attachment piece (50).