Grating Fastening Assembly Using Friction-Clamped Mesh Inserts

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Solution Overview

Problem

Existing fastening methods for attaching structural elements to gratings, particularly in offshore wind turbines, are complex and costly, posing challenges due to local conditions.

Innovation Solution

A grating arrangement with a fastening element that is inserted into the mesh and clamped by frictional engagement, utilizing a deformable base body with a spreading element to create a secure frictional connection, allowing easy assembly and production.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If traditional fastening methods are used to attach structural elements to gratings, then the connection is secure, but the assembly process becomes complex and costly

Engineering Contradiction:
Improveconnection securityVSAvoidfastening method complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The fastening system is divided into separate functional components: the fastening element with base body that inserts into the mesh, and the spreading element that creates the clamping force. This segmentation allows each component to be optimized independently and simplifies the overall assembly process while maintaining secure connection.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The fastening element is designed to create its own secure connection through the interaction between the base body and spreading element. The spreading element, when actuated, automatically generates the clamping force needed to secure the fastening element within the mesh without requiring additional fastening operations or complex assembly steps.

Inventive Principle:
Principle #25Self-service

2Reliability

If traditional fastening methods are used to attach structural elements to gratings, then the connection is secure, but the production cost increases

Engineering Contradiction:
Improveconnection securityVSAvoidproduction cost
Core Design Contradiction:
ReliabilityVSEase of manufacture

Solution Approach 1:

The fastening element is designed as a cost-effective, potentially disposable component that can be easily manufactured and installed. The simple structure consisting of a base body and spreading element allows for economical production through conventional manufacturing processes, eliminating the need for expensive traditional fastening systems while maintaining adequate connection security for the application.

Inventive Principle:
Principle #27Cheap short-living objects (Disposable)

3Ease of operation

If a deformable base body with spreading element is used, then easy assembly is achieved, but the manufacturing precision requirements increase

Engineering Contradiction:
Improveassembly easeVSAvoidbase body deformation control
Core Design Contradiction:
Ease of operationVSManufacturing precision

Solution Approach 1:

The base body is designed to change its physical state from a deformable configuration during insertion to a clamped configuration when the spreading element is actuated. This parameter change allows the fastening element to adapt to the mesh geometry during assembly while maintaining precise clamping forces once installed, reducing the need for high manufacturing precision in the initial dimensions.

Inventive Principle:
Principle #35Parameter changes

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 simple, cost-effective, and reliable method for attaching structural elements to gratings, suitable for offshore wind turbines, with a secure frictional connection that facilitates easy installation and maintenance.

Implementation Method 1

The at least one fastening element is supported on an inner wall of the mesh such that the at least one fastening element is clamped in the mesh and held therein by frictional engagement

Methodology Applied
Scientific EffectFriction: Friction

Implementation Method 2

the base body is deformable in the spreading region by means of the spreading element, in particular movable radially outward, such that, in the assembled state of the at least one fastening element, the base body presses against the inner wall in the spreading region

Methodology Applied
Scientific EffectDeformation: Deformation

Data Source

PatentEP4600510A1Grating assembly with grating and fastening element
Publication Date: 2025.08.13 NOLTEWERK
  • EP4600510A1 patent drawingFigure 1
  • EP4600510A1 patent drawingFigure 2
  • EP4600510A1 patent drawingFigure 3

AI summary

The invention relates to a grating arrangement comprising at least one grating (1) with webs (3), wherein the webs (3) delimit meshes (2), and at least one fastening element (4), and wherein the at least one fastening element (4) can be inserted into a mesh (2) and is supported on an inner wall (20) of the mesh (2) in such a way that the at least one fastening element (4) is clamped in the mesh (2) and held therein by frictional engagement.