Eave Sealing Strip for Waterproof Click-Fit Assembly

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Solution Overview

Problem

Existing eaves are not waterproof during heavy rain, do not absorb vibrations well, and require design modifications based on roof covering thickness, leading to non-uniform clamping due to small irregularities.

Innovation Solution

A waterproof eave design featuring a decorative panel and bottom profiled section with a flexible sealing piece, such as PVC foam adhesive tape, that allows for uniform clamping and vibration absorption, compatible with various roof covering thicknesses, and includes corner pieces for efficient corner formation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If a simple click-fitted eave design is used, then ease of manufacture and installation is improved, but waterproofing capability deteriorates

Engineering Contradiction:
Improveease of manufactureVSAvoidwaterproofing capability
Core Design Contradiction:
Ease of manufactureVSReliability

Solution Approach 1:

A sealing strip is introduced as an intermediary element between the decorative panel and the bottom profiled section. This sealing strip mediates the connection, providing waterproofing functionality while maintaining the simple click-fitted assembly method. The sealing strip fills the gap and creates a water-tight barrier without complicating the manufacturing or installation process.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The eave system uses composite construction by combining the decorative panel, bottom profiled section, and sealing strip made of different materials. The sealing strip is specifically designed with material properties that provide both flexibility for installation and waterproofing capability, creating a composite structure that achieves reliability without sacrificing ease of manufacture.

Inventive Principle:
Principle #40Composite materials

2Strength

If a rigid eave structure is used, then structural strength is improved, but vibration absorption capability deteriorates

Engineering Contradiction:
Improvestructural strengthVSAvoidvibration absorption
Core Design Contradiction:
StrengthVSObject-affected harmful factors

Solution Approach 1:

The sealing strip is designed as a flexible element that can deform under vibration loads. This flexible component absorbs vibrations by deforming elastically, while the overall eave structure maintains its structural strength through the rigid decorative panel and bottom profiled section. The flexibility is localized to where it is needed for vibration absorption.

Inventive Principle:
Principle #30Flexible shells and thin films

Solution Approach 2:

The sealing strip's physical parameters (such as durometer, thickness, and cross-sectional geometry) are optimized to provide appropriate flexibility for vibration absorption. By carefully selecting and adjusting these parameters, the sealing strip can effectively dampen vibrations while maintaining the structural integrity of the entire eave assembly.

Inventive Principle:
Principle #35Parameter changes

3Adaptability or versatility

If the eave design is modified for different roof covering thicknesses, then adaptability is improved, but device complexity deteriorates

Engineering Contradiction:
ImproveadaptabilityVSAvoiddevice complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The sealing strip is designed as a universal component that can accommodate various roof covering thicknesses. Its flexible nature and adjustable positioning allow it to function effectively across different installation scenarios without requiring multiple specialized designs. This single versatile solution replaces the need for multiple thickness-specific eave configurations.

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

Solution Approach 2:

The sealing strip incorporates dynamic characteristics that allow it to adapt to different roof covering thicknesses. Its flexibility enables it to conform to varying gap sizes and positioning requirements, providing a universal solution that works across different installation conditions without increasing device complexity.

Inventive Principle:
Principle #15Dynamics

4Ease of operation

If small irregularities are present in the installation surface, then ease of installation is improved, but clamping uniformity deteriorates

Engineering Contradiction:
Improveease of installationVSAvoidclamping uniformity
Core Design Contradiction:
Ease of operationVSManufacturing precision

Solution Approach 1:

The sealing strip's flexibility allows it to conform to slight irregularities in the installation surface and positioning variations. This flexibility compensates for minor misalignments and surface imperfections, maintaining clamping uniformity across the entire decorative panel without requiring precision installation conditions.

Inventive Principle:
Principle #30Flexible shells and thin films

Solution Approach 2:

The sealing strip acts as a cushioning element that anticipates and compensates for potential positioning variations and surface irregularities before they affect the clamping uniformity. By providing this preliminary cushioning effect, the system ensures uniform clamping even when installation conditions are not perfectly precise.

Inventive Principle:
Principle #11Beforehand cushioning (Prior cushioning)

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 watertight, vibration-absorbing eave that maintains uniform clamping and is adaptable to different roof covering thicknesses, ensuring effective sealing and efficient installation, even with small irregularities.

Implementation Method 1

the flexible sealing piece has the advantage that it absorbs the vibrations

Methodology Applied
Scientific EffectVibration absorption: Damping

Implementation Method 2

a flexible sealing piece which makes the click-fit connection waterproof

Methodology Applied
Scientific EffectElastic deformation: Elasticity

Implementation Method 3

the flexible sealing piece comprises rot-proof adhesive tape of PVC foam

Methodology Applied
Scientific EffectAdhesion: Adhesive

Data Source

PatentEP3467229B1Eave with sealing strip
Publication Date: 2020.04.29 CLAERHOUT ALUMINUM
  • EP3467229B1 patent drawingFigure 1
  • EP3467229B1 patent drawingFigure 2
  • EP3467229B1 patent drawingFigure 3A~3B

AI summary

Eave which comprises a decorative panel and a bottom profiled section. The decorative panel is click-fitted onto the bottom profiled section. The bottom profiled section comprises a top end. A flexible sealing piece is arranged between the top end of the bottom profiled section and the decorative panel. A related roof seal, method, and kit comprising components are also provided.