Mechanical Floor Board Joints for Moisture-Resistant Quiet Installation
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Solution Overview
Problem
Existing decorative floor boards made of MDF or HDF materials face issues with moisture penetration leading to swelling and discoloration, which accelerates wear, and they also produce creaking noises and have visible gaps that allow moisture ingress.
Innovation Solution
The floor boards feature angled coupling parts with curved and inclined surfaces forming multiple contact zones, and treated edges with water barrier agents to prevent moisture ingress, while maintaining secure interlocking for easy installation and narrow grout lines.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If tongue and groove coupling parts are used to join floor boards, then secure mechanical interlocking is achieved, but moisture can still penetrate through the seams causing swelling and discoloration
Solution Approach 1:
The coupling part is divided into multiple functional zones: a tongue portion for horizontal interlocking, a groove portion for vertical engagement, and a bridge portion connecting them. This segmentation allows each zone to perform its specific function while collectively creating a more comprehensive barrier against moisture penetration through the joint.
Solution Approach 2:
The coupling mechanism transitions from traditional two-dimensional tongue and groove to a three-dimensional structure with multiple contact points and engagement zones. The bridge portion extends in a third dimension, creating additional barriers to moisture penetration while maintaining mechanical strength.
2Ease of operation
If traditional coupling parts are used, then installation is straightforward, but creaking noises occur during use
Solution Approach 1:
The coupling parts are pre-configured with multiple contact zones and engagement features during manufacturing. This preliminary arrangement ensures that when floor boards are installed, the coupling mechanism immediately provides stable contact and eliminates movement that causes creaking noises, without requiring additional adjustment or modification during installation.
3Ease of manufacture
If standard floor board edges are used, then manufacturing is simple, but visible gaps and swelling occur due to moisture absorption
Solution Approach 1:
The bridge portion of the coupling part is specifically designed with enhanced local properties, including optimized geometry and material density, to resist moisture absorption and swelling. This localized enhancement at the critical edge region maintains overall manufacturing simplicity while preventing the visible gaps and swelling that occur with standard edges.
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 enhances waterproofing, reduces creaking noises, and minimizes visible gaps, providing improved durability and aesthetic appeal by preventing moisture-related issues and ensuring secure, quiet installation.
Implementation Method 1
at least one side edge together with a side edge opposite thereto forming a first pair of opposite side edges of the substrate; wherein said first pair of opposite side edges optionally comprises mechanical first and second coupling parts
Data Source
AI summary
A floor board including a decorative surface layer applied to a substrate, where the substrate is optionally MDF or HDF material at a side edge thereof, and at least one side edge together with a side edge opposite thereto forming a first pair of opposite side edges of said substrate. The first pair of opposite side edges includes mechanical first and second coupling parts, respectively, allowing the floor board to be coupled at the respective side edges with a similar floor board. Also, a floor board covering consisting of a plurality of the floor boards and a method for manufacturing such floor boards.