Decorative Panel Coupling Structure for Watertight Seams
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Solution Overview
Problem
Existing decorative panels face challenges in creating a watertight connection between panels, particularly when made of moisture-sensitive materials like MDF or HDF, leading to water permeation and microbial growth.
Innovation Solution
A decorative panel design featuring a sideward tongue and recess coupling mechanism with inclined surfaces and contact portions that create a tension force, allowing panels to be angled down for a secure, watertight connection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If panels are made of moisture-sensitive materials like MDF or HDF, then manufacturing cost and ease of manufacture are improved, but water resistance and reliability deteriorate
Solution Approach 1:
The patent applies a flexible sealing element (gasket) that deforms under compression to create a waterproof seal between panels. The gasket is compressed by the coupling mechanism between adjacent panels, forming a flexible barrier that prevents water penetration while accommodating manufacturing tolerances and panel expansion/contraction.
Solution Approach 2:
The patent creates a composite structure by combining moisture-sensitive panel materials (MDF/HDF) with water-resistant components (PVC gaskets, coupling elements). This composite approach allows the use of cost-effective core materials while incorporating targeted water resistance at critical interfaces through the sealing system.
2Ease of operation
If traditional tongue and groove coupling is used, then ease of operation and installation are improved, but water tightness and reliability deteriorate
Solution Approach 1:
A flexible gasket element is integrated into the coupling mechanism, compressed between adjacent panels to form a waterproof seal. This maintains the simplicity of tongue-and-groove installation while adding water tightness through the deformable sealing element that adapts to the joint geometry.
Solution Approach 2:
The coupling mechanism is segmented into distinct functional elements: a tongue portion for mechanical interlocking, a groove for reception, and a separate gasket element for sealing. This segmentation allows each component to be optimized independently - the tongue and groove for ease of assembly, and the gasket for water tightness.
3Device complexity
If panels are coupled with simple tongue and groove, then device complexity is reduced, but connection strength and reliability worsen
Solution Approach 1:
The flexible gasket adds minimal complexity while significantly improving connection strength and water tightness. The gasket is simply positioned in the groove and compressed during assembly, creating a reliable seal without requiring complex machining or assembly procedures.
Solution Approach 2:
The gasket element features a curved cross-section that complements the groove geometry, allowing uniform compression and optimal sealing contact. This curvature enables the gasket to deform conformally to the joint surfaces, enhancing sealing effectiveness with minimal structural complexity.
Data Source
AI summary
Decorative panel, including at least at a first pair of opposite edges, a first coupling part and a second coupling part allowing that several of such panels can be coupled to each other, whereby the first and second coupling parts, in coupled condition of two of such panels, provide a locking in a first direction (R1) perpendicular to a plane of the panels, as well as in a second direction (R2) perpendicular to respective edges and parallel to the plane of the panels.