One-Piece Rosette Self-Locking Overlap Tension Mounting

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Solution Overview

Problem

Conventional one-piece pipe rosettes face issues with reusability, anchoring means complicating installation and removal, and aesthetic appeal, often requiring snap-couplings or adhesives that can fail over time or under impact.

Innovation Solution

A one-piece rosette design featuring overlapping free wall end parts that self-lock through tension without physical or mechanical anchoring means, using a ring-shaped main body that automatically assumes a mounted state by displacing one end part below the other, allowing easy mounting and demounting without tools.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If conventional one-piece pipe rosettes use snap-couplings or adhesives as anchoring means, then the rosette can be securely mounted around the pipe, but the manipulation and installation become complicated and the anchoring means may fail over time or under impact

Engineering Contradiction:
Improvesecure mountingVSAvoidmanipulation during installation
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The invention removes the anchoring means (snap-couplings or adhesives) from the rosette design entirely. The free wall end parts are designed to overlap and self-lock through their own structural configuration without requiring separate anchoring components, thereby simplifying manipulation while maintaining secure mounting through the self-locking mechanism

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The rosette structure serves itself by using the overlapping free wall end parts that automatically self-lock through tension when mounted around the pipe. This self-locking mechanism eliminates the need for external anchoring means, making the installation process simpler while ensuring reliable mounting through the inherent structural design

Inventive Principle:
Principle #25Self-service

2Reliability

If conventional one-piece pipe rosettes use anchoring means to maintain mounted condition, then the rosette remains securely positioned, but the visual appearance is compromised and reusability is reduced

Engineering Contradiction:
Improvemounted condition stabilityVSAvoidvisual appearance
Core Design Contradiction:
ReliabilityVSShape

Solution Approach 1:

The invention extracts and removes the visible anchoring means from the rosette design. The overlapping free wall end parts create a clean, continuous visual appearance without protruding snap-couplings or visible adhesives, while the self-locking mechanism through tension maintains the mounted condition stability

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The invention merges the mounting function and the aesthetic function into a single integrated structure. The overlapping free wall end parts simultaneously provide the self-locking mechanism for stable mounting and create a smooth, continuous visual appearance without separate anchoring components

Inventive Principle:
Principle #5Merging (Combining)

3Reliability

If conventional one-piece pipe rosettes use adhesives as anchoring means, then the end parts can be adhered together, but the adhesive dries out fast and the rosette opens under impact

Engineering Contradiction:
Improveend parts adhesionVSAvoidresistance to impact
Core Design Contradiction:
ReliabilityVSStrength

Solution Approach 1:

The invention replaces the chemical adhesion mechanism (adhesive) with a mechanical self-locking mechanism. The overlapping free wall end parts use tension and friction to maintain adhesion, providing superior resistance to impact forces compared to adhesives that dry out or fail under stress

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The rosette structure self-maintains the adhesion of end parts through its own structural tension. The overlapping free wall end parts continuously apply tension to each other, creating a self-reinforcing mechanism that maintains strong adhesion and resists impact forces without relying on external adhesives

Inventive Principle:
Principle #25Self-service

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 design provides a versatile, aesthetically pleasing, and cost-effective solution for covering oversized holes around pipes, ensuring secure fitting and easy removal without damaging the tubular structure or requiring additional locking mechanisms.

Implementation Method 1

the overlap between the first free wall end part and the second free wall end part is self-locking by being arranged in tension against each other

Methodology Applied
Scientific EffectTension: Tension

Data Source

PatentEP3440390B1A one-piece rosette, a method of manufacturing the one-piece rosette and uses thereof
Publication Date: 2020.03.18 THUESEN & THUESEN AS
  • EP3440390B1 patent drawingFigure 1~2
  • EP3440390B1 patent drawingFigure 3a~3b
  • EP3440390B1 patent drawingFigure 4~5

AI summary

A one-piece rosette (15) comprising a ring-shaped main body adapted to be detachably mounted around a tubular structure which projects from a base structure, the ring-shaped main body has - a circumferential wall (14) with a radial width between a central opening and an outer wall perimeter, - a first free wall end part (8) and a second free wall end part (9) opposite the first free wall end part, - which first free wall end part and second free wall end part (8, 9) being arranged in overlapping relationship, - the opposite first free wall end part (8) and second free wall end part (9) being flexible to and from each other in relation to the central axis of the one-piece rosette (15), wherein the overlap between the first free wall end part (8) and the second free wall end part (9) is self- locking by being arranged in tension against each other.