Two-Layer Engineered Wood Flooring with Segmented Core Veneers

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Solution Overview

Problem

Existing two-layer engineered wood flooring exhibits excessive bending performance and poor stability, making it unsuitable for flooring applications.

Innovation Solution

A two-layer engineered wood flooring design featuring a top veneer, core veneers with spacing gaps, and a back strip connected to the core veneers, enhancing flexibility and stability through the back strip's connection.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If two boards are glued together to form a parallel groove in the lower board, then flexibility is improved to meet bending requirements, but stability deteriorates excessively

Engineering Contradiction:
ImproveflexibilityVSAvoidstability
Core Design Contradiction:
Adaptability or versatilityVSStability of the object's composition

Solution Approach 1:

The lower board is divided into multiple separate core veneers with spacing gaps between them, rather than a single solid board. This segmentation provides flexibility for bending while maintaining stability through the distributed structure and back strip connections.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

A back strip is introduced as an intermediary element that connects the core veneers and top veneer together. This back strip acts as a mediator that provides stability and structural integrity while allowing the spacing gaps to maintain flexibility.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Ease of operation

If multiple core veneers are arranged side by side with spacing gaps, then flexibility is improved for smooth laying, but structural integrity may worsen without proper connection

Engineering Contradiction:
Improvesmoothness during layingVSAvoidstructural integrity
Core Design Contradiction:
Ease of operationVSStrength

Solution Approach 1:

The back strip merges and connects the multiple core veneers and top veneer into a unified composite structure. This combining approach ensures that while the core veneers remain separate for flexibility, they work together as a single strong unit for structural integrity.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The flooring combines multiple different materials and components (top veneer, core veneers, back strip) into a composite structure that achieves both flexibility and strength properties that individual components cannot provide alone.

Inventive Principle:
Principle #40Composite materials

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 ensures good flexibility and stability, allowing for smooth laying and meeting user needs.

Implementation Method 1

a top surface of the back strip is bonded to a bottom surface of the core veneers by means of an adhesive

Methodology Applied
Scientific EffectAdhesive bonding: Adhesive

Implementation Method 2

carrying out kiln drying balance on the top veneer and the back strip

Methodology Applied
Scientific EffectKiln drying: Heat Treatment

Data Source

PatentEP4725692A1Two-layer engineered wood flooring, and manufacturing method therefor
Publication Date: 2026.04.15 DALIAN JAENMAKEN WOOD IND CO LTD
  • EP4725692A1 patent drawingFigure 1~2
  • EP4725692A1 patent drawing
  • EP4725692A1 patent drawing

AI summary

Provided is a two-layer engineered wood flooring, and a manufacturing method therefor, relating to the technical field of wood floor design and manufacturing. The technical problem of excessive bending performance and poor stability in the prior art. The two-layer engineered wood flooring includes a top veneer, core veneers, and a back strip. Multiple core veneers are provided and arranged on the top veneer side by side, a spacing gap is formed between adjacent core veneers, and the back strip is arranged on the core veneer. The back strip is connected to at least two core veneers, and the multiple core veneers are all connected to the back strip. By arranging the multiple core plates side by side and connecting the core plates by the back strip, the engineered wood flooring is guaranteed to have good stability while having good flexibility.